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IPC classes for russian patent Cover for manhole shaft (RU 2244069):
Another patents in same IPC classes:
 Cover for manhole shaft / 2244069
Cover comprises base, fixed rests and sliding rest located diametrically opposite to fixed rests and having stop and locking device. Fixed and sliding rests are arranged on cover base from support surface side. Movable rest is made as flat cam member with stop groove and key orifices. Cam member has central key orifice corresponding to key orifice formed in cover base. Locking device is made as rotary plate performing rotation around its axis and having short and long shoulders. Rotary plate includes counterweight and stop member arranged on long shoulder from opposite axis sides. Stop member may cooperate with flat cam member groove. Short shoulder may close central key orifice made in cam member when stop member is arranged in cam member groove.
 Multi-purpose hatch locking device / 2265698
Device has disc secured to hatch lid, locking screw with wrench head, sliding nut and length-adjustable locking arms connected to sliding nut. Two pairs of guiding posts with row of coaxial orifices are fixedly connected to disc. Cross-arm adapted to be repositioned in accordance with locking degree is secured to above orifices. Smooth end of locking screw is installed in central cross-arm orifice bush. Sliding nut is formed as cross-piece with rocker arm supported by side fingers and surrounding the cross-piece. The sliding nut is connected to locking screw thread. Locking arms in its extreme positions may be brought into contact with limiters fastened to cross-arm. The first ends of locking arms are provided with length-adjustable catches, which cooperate with well wall or with lower surface of support hatch panel during hatch lid locking. The second ends thereof are attached to rocker arm of sliding nut through tension bars and axles.
 Method for manhole chimney and cover replacement / 2266370
Method involves cutting spherical part of paved road around manhole chimney and cover thereof, removing above spherical part, demounting cover and chimney; installing new chimney; filling hollow spherical space formed after spherical part removal with self-curing non-shrinking filler having high pouring ability; laying surface layer material over above self-curing non-shrinking filler without compacting thereof by roller.
 Access chamber hatch / 2278215
Hatch comprises body and lid. The body includes metal frame with ribs and covered with polymeric composition. The lid is made as vertical rod, face panel and base panel and is provided with metal sheets secured to rod, face panel and base panel. The face panel and base panes extend transversely to the rod. The metal sheets taper towards base panel and form removable frame filled with polymeric composition.
 Floating manhole hatch / 2283922
Hatch comprises body having upper and lower parts. Inner diameter of lower body part exceeds diameter of upper body part touching the lower body part. Upper body part is provided with flange having diameter related with upper body part diameter as df>1.25d, where df is outer flange diameter. Upper body part is spaced from lower body part to provide upper body part sliding with respect to lower body part in the case of road pavement displacement. Upper body part passes into lower body part and extends inside lower body part for distance related with upper body part height as 0.25h<s<0.5h, where s is above distance, h is upper body part height.
 Manhole hatch / 2286425
Hatch comprises body closed with detachable lid and shaped as vertical contoured wall with horizontal support flange. The flange is provided with stiffening ribs and with orifices formed between the stiffening ribs. Vertical contoured wall has smooth outer surface. Horizontal support flange and stiffening ribs face body interior.
 Inspection well hatch / 2307213
Inspection well hatch comprises support ring with orifice, reinforcing belt extending along inner contour thereof, support base, reinforcing cage and lid. The reinforcing cage includes inner ring of sheet metal and/or profiled metal and round steel rod connected thereto by means of fixedly secured partitions. Lid has support surface and reinforcing cage including outer ring made of sheet metal and/or profiled metal, lower reinforcing mesh fixedly connected thereto, round steel rod and upper reinforcing mesh. The reinforcing cages are filled with non-metal binding material. The round steel rods of support ring and lid are pre-stressed and cooperate with at least 12 reinforcement posts uniformly distributed along annular rod perimeter inside thereof.
 Method for inspection well hatch manufacturing / 2307214
Method involves installing reinforcing cage of support ring and reinforcing cage of lid in mold bottom plate, wherein reinforcing cage of support ring includes inner ring formed of sheet metal and/or profiled metal and round steel rod connected to the inner ring by means of fixedly secured partitions, reinforcing cage of the lid includes outer ring made of sheet metal and/or profiled metal, reinforcing mesh fixedly connected thereto, round steel rod and upper reinforcing mesh; pouring non-metal binding material into the mold bottom plate, wherein above round steel rods of support ring and lid are pre-stressed by heat-treating thereof before filling with binding material and by tightening round steel rods with stretchers, wherein the stretchers are made as at least 12 reinforcement posts uniformly distributed along annular rod perimeter inside thereof and rigidly fastened to mold bottom plates; providing binding material strength generation; removing the ready articles from molds and cutting projected bar ends.
 Inspection well hatch lid / 2310043
Inspection well lid has base, at least one fixed thrust and one movable rotary thrust provided with locking means arranged along a circle from the side of support lid base surface. Locking means is made as indicating member, which retains movable thrust and is damaged during movable thrust rotation. Lid has through orifice and indicating member recess, which are made along movable thrust rotation axis. The recess is formed from outer lid surface. Indicating member conform the recess and is forcedly fitted inside the recess below outer lid surface or is flush therewith. In particular case movable thrust is made as locking plate, which may rotate by key from outer side thereof. The key is inserted from outer lid side in through orifice made in lid. Indicating member is made as plastic plate with members, which prevent indicating member removal from lid and with member and/or members, which cooperate with movable thrust axis to restrict the movable thrust from rotation. Plate blocks access to movable thrust axis. Locking plate may be secured to threaded rod having head to be engaged by wrench with the use of nut. In another particular case lid additionally has orifices for mounting thrust members receiving.
 Areaway of underground low-channel communications building / 2334056
Invention refers to building of local value underground linearly-cable communications buildings. The goal of the invention is reached when the device is executed in the form of a bowl with equal height H and outside diameter D of a bowl bead with two oriels executed on its exterior side surface, at least, on distance of h≥0.4 m from a bead on one radial sectional view in the form of dead holes or a radial groove, and with one metal loop rigidly fixed on a base internal surface.
Cover for manhole shaft / 2244069
Cover comprises base, fixed rests and sliding rest located diametrically opposite to fixed rests and having stop and locking device. Fixed and sliding rests are arranged on cover base from support surface side. Movable rest is made as flat cam member with stop groove and key orifices. Cam member has central key orifice corresponding to key orifice formed in cover base. Locking device is made as rotary plate performing rotation around its axis and having short and long shoulders. Rotary plate includes counterweight and stop member arranged on long shoulder from opposite axis sides. Stop member may cooperate with flat cam member groove. Short shoulder may close central key orifice made in cam member when stop member is arranged in cam member groove.
Method for manhole chimney and cover replacement / 2266370
Method involves cutting spherical part of paved road around manhole chimney and cover thereof, removing above spherical part, demounting cover and chimney; installing new chimney; filling hollow spherical space formed after spherical part removal with self-curing non-shrinking filler having high pouring ability; laying surface layer material over above self-curing non-shrinking filler without compacting thereof by roller.
Access chamber hatch / 2278215
Hatch comprises body and lid. The body includes metal frame with ribs and covered with polymeric composition. The lid is made as vertical rod, face panel and base panel and is provided with metal sheets secured to rod, face panel and base panel. The face panel and base panes extend transversely to the rod. The metal sheets taper towards base panel and form removable frame filled with polymeric composition.
 Inspection pit hatch / 2280735
Hatch comprises support ring with annular groove and reinforced lid with through orifices and lower part converging downwards. Upper lid part also converges downwards. Angle between side surface of upper lid part and vertical line is from 5° to 10°, angle between side surface of lower lid part and vertical line is equal to 25°-30°. Upper and lower lid part height ratio is 1:5 - 1:3. Two through orifices have elliptical cross-sections and are provided with steel pipes closely fitted in the orifices. The orifices are diametrically symmetric about lid center and are located from both sides of the center. Orifice ellipse axes ratio is from 2:3-2.5:3.5 and larger orifice ellipse axis has length equal to 1/15-1/20 of lid diameter. The lid and support ring are formed of high-strength concrete.
 Man-hole / 2293698
Invention relates to facilities designed for servicing high-pressure sealed equipment, such as boilers, collectors, recuperators. Proposed man-hole has oval cover. Said cover is arranged inside reservoir and is attached to movable support welded to inner surface. Central part of cover is made additionally from thin sheet in form of ellipse being pointed by convex surface inside reservoir. Stops and ribs are welded on concave surface of cover perimeter. Detachable oval half-rings provided with slots are arranged on ribs. Pressure ring is arranged on end face of oval collar secured in hole of reservoir. Detachable half-rings are clamped, together with pressure ring, by fasteners and form cover sealing device. Oval gasket is fitted n groove on end face surface of cover.
 Locking device for object to be protected, mainly for inspection pit hatch / 2306387
Locking device for inspection pit hatch, which is installed in orifice made at protected object base, comprises locking member and rotary bolt. The rotary bolt includes rod with key-operated head and locking means connected to opposite end thereof. Orifice made in base of protected object additionally has socket to receive rod head with locking member made as signal member and having shape corresponding to that of the socket so that it be secured to head in axial direction and in direction of head rotation. Signal member is made as plate provided with members cooperating with head for head fixation in axial direction and in direction of head rotation. Plate member, which prevents head rotation, has surface mating to that of key socket. Fixing member is shaped as radial teeth comb in axial direction thereof. The teeth are provided with L-shaped projections created at teeth ends and enclosing the head. Space between head and teeth flange surfaces provide interference fitting thereof. Signal plate is installed to completely close access to key-operated head.
Inspection well hatch / 2307213
Inspection well hatch comprises support ring with orifice, reinforcing belt extending along inner contour thereof, support base, reinforcing cage and lid. The reinforcing cage includes inner ring of sheet metal and/or profiled metal and round steel rod connected thereto by means of fixedly secured partitions. Lid has support surface and reinforcing cage including outer ring made of sheet metal and/or profiled metal, lower reinforcing mesh fixedly connected thereto, round steel rod and upper reinforcing mesh. The reinforcing cages are filled with non-metal binding material. The round steel rods of support ring and lid are pre-stressed and cooperate with at least 12 reinforcement posts uniformly distributed along annular rod perimeter inside thereof.
Method for inspection well hatch manufacturing / 2307214
Method involves installing reinforcing cage of support ring and reinforcing cage of lid in mold bottom plate, wherein reinforcing cage of support ring includes inner ring formed of sheet metal and/or profiled metal and round steel rod connected to the inner ring by means of fixedly secured partitions, reinforcing cage of the lid includes outer ring made of sheet metal and/or profiled metal, reinforcing mesh fixedly connected thereto, round steel rod and upper reinforcing mesh; pouring non-metal binding material into the mold bottom plate, wherein above round steel rods of support ring and lid are pre-stressed by heat-treating thereof before filling with binding material and by tightening round steel rods with stretchers, wherein the stretchers are made as at least 12 reinforcement posts uniformly distributed along annular rod perimeter inside thereof and rigidly fastened to mold bottom plates; providing binding material strength generation; removing the ready articles from molds and cutting projected bar ends.
Inspection well hatch lid / 2310043
Inspection well lid has base, at least one fixed thrust and one movable rotary thrust provided with locking means arranged along a circle from the side of support lid base surface. Locking means is made as indicating member, which retains movable thrust and is damaged during movable thrust rotation. Lid has through orifice and indicating member recess, which are made along movable thrust rotation axis. The recess is formed from outer lid surface. Indicating member conform the recess and is forcedly fitted inside the recess below outer lid surface or is flush therewith. In particular case movable thrust is made as locking plate, which may rotate by key from outer side thereof. The key is inserted from outer lid side in through orifice made in lid. Indicating member is made as plastic plate with members, which prevent indicating member removal from lid and with member and/or members, which cooperate with movable thrust axis to restrict the movable thrust from rotation. Plate blocks access to movable thrust axis. Locking plate may be secured to threaded rod having head to be engaged by wrench with the use of nut. In another particular case lid additionally has orifices for mounting thrust members receiving.
 Locking device for inspection pit hatch locking / 2315838
Locking device comprises rotary rod and locking member installed in orifice made in inspection pit hatch base. Rotary rod has engagement member created in upper end thereof. Locking member is provided with indication means arranged in upper locking member part and adapted to be installed in said orifice to prevent access to engagement member. Engagement member has head to be engaged with key. Indication means is created as plate mating to orifice made in the base. The plate has teeth defining comb structure. The teeth are diametrical about axis of rotation and are spaced a distance providing key installation therefrom. The teeth have L-shaped extensions at teeth ends so that extensions enclose engagement member from below. Rotary rod has control washer to provide space for teeth extension passage and retaining. Indication means may be formed of colored plastic. Plate may have individual number formed on outer plate surface.
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FIELD: municipal engineering, particularly covers for manholes of different underground pipelines.
SUBSTANCE: cover comprises base, fixed rests and sliding rest located diametrically opposite to fixed rests and having stop and locking device. Fixed and sliding rests are arranged on cover base from support surface side. Movable rest is made as flat cam member with stop groove and key orifices. Cam member has central key orifice corresponding to key orifice formed in cover base. Locking device is made as rotary plate performing rotation around its axis and having short and long shoulders. Rotary plate includes counterweight and stop member arranged on long shoulder from opposite axis sides. Stop member may cooperate with flat cam member groove. Short shoulder may close central key orifice made in cam member when stop member is arranged in cam member groove.
EFFECT: increased locking reliability.
2 cl, 9 dwg
The invention relates to utilities, in particular, to the design of hatch covers sewage pit, and can be used for manholes inspection chambers of any underground utilities, cellars, etc.
Known manhole cover observation wells containing at least one stationary stop and located diametrically movable driven focus with locking device, including the bar (see GOST 8591-76 “Manholes for cable wells phone systems”).
A disadvantage of the known hatches observation wells phone systems is the low reliability of the strap locking device and the possibility of its easy opening, that does not preclude the unauthorized access to underground utilities.
The closest manhole cover is equipped with at least one fixed stop and located diametrically movable driven focus with locking device, with fixed and movable stops are placed in the cover surface, and movable stops are pivoted and provided with a control head, placed in the glass, and the locking device in the form of a helical rod with elements turnkey placed in the body of the head (see .RU No. 2106456, IPC6E 02 D 29/12).
The disadvantages of the known compositions is difficult the awn design, the increased complexity of manufacturing, low reliability closure devices cover due to frequent wear his thread of the screw rod and elements for the key.
The technical result of the claimed technical solution is to increase the reliability of the closure devices.
The technical result is achieved by the fact that the hatch observation wells containing base, fixed stops and diametrically them located movable stop with stop and shut-off device, with fixed and movable stops on the basis of the cover from its supporting surface, a movable stop in the form of flat Cam with groove for locking and holes key, and consequently the Central hole in the Cam made the hole for the key based on the cover, and the locking device made in the form of swivel on the axis of the plate with short and long shelves with counterbalance and locking element placed on her long shelf on opposite sides of the axis, and the locking element is mounted for engagement with the Cam groove flat and short shelf rotary plate is arranged to overlap the Central key hole in the Cam at the location of the locking element in its groove.
In addition to t the th, in the hatch edge of the flat Cam interacting with the mouth of the hatch, and the opposite edge is made semicircular shape.
Comparing the closest analogue to the claimed device revealed distinctive from him the signs, therefore, the claimed technical solution meets the criterion of “NOVELTY”.
Performing a rolling stop in the form of a flat Cam with groove for locking and holes key, and consequently the Central hole in the Cam made the hole for the key based on the cover and closure devices in the form of swivel on the axis of the plate with short and long shelves with counterbalance and locking element placed on its long shelf on opposite sides of the axis, and the locking element is mounted for engagement with the Cam groove flat and short shelf rotary plate is arranged to overlap the Central key hole in the Cam at the location of the locking element in its groove provides reliable fastening using the Cam cover on the neck of the hatch and secure fixing of the position of the eccentric locking element of the locking device, driven by gravity counterbalance his plate, and does not allow to open the lock ipodate the hatch without a special key, preventing the entry of unauthorized persons to the communications.
Figure 1 - manhole Cover Assembly. View from the side support surface of the cover.
Figure 2 is a section along a-a in figure 1.
Figure 3 - General view of the rolling stop.
4 is a Section along a-a in figure 3.
5 is a General view of the flat Cam.
6 is a General view of the locking device.
Fig.7 - View And figure 6.
Fig - General view of the key.
Fig.9 - View And Fig
Manhole cover observation wells comprises a base 1 with an opening 2 turnkey, two fixed stops 3, is welded to the cover and located diametrically them movable stop 4. These fixed stops 3 and the movable stop 4 is placed in the cover surface. The movable stop 4 in the form of flat Cam 5 with a groove 6 for locking and three holes 7 for the key (7). The edge of the Cam plate 5, interacting with the mouth of the hatch, and the opposite edge are, for example, a semicircular shape. The Cam 5 is mounted on the base 1 hatch cover bracket 8, for example, U-shaped (Fig 3, 4). Locking cap device (6, 7) is made in the form of a plate 9 with short and long shelves. Long shelf plate 9 across it fixed, for example, by welding the axle 10 for mounting the plate 9 by means of brackets 11 on the basis of the lid (figure 1, 2). The plate 9 is installed about ewaves 12 and locking element 13, interacting with a groove 6 flat Cam 5, the counterweight 12 and locking element 13 is placed on the long shelf plate 9 on opposite sides of the axis 10 and, for example, opposite planes. Locking element 13 is made, for example, in the form of a cylindrical workpiece. Plate 9 mounted on the bracket 11 so that the short end overlaps the Central hole under the key on the Cam 5 in the position of the plate 9, when the locking element 13 is in the groove 6 of the eccentric 5.
The hatch observation well is used as follows.
Using a special key (Fig, 9), inserted into the opening 2 of the base 1, the cover, the Cam 5 rotates counterclockwise until it stops inside and cover loosely mounted on the neck of the hatch. Then use the key eccentric shaft 5 rolling stop 4 turn clockwise, while the edge of the eccentric 5, interacting with the mouth of the hatch, locking cover. Then when you remove the key from the hole of the eccentric 5 and the holes 2 in the base 1 plate 9 shut-off devices under the action of the counterweight 12 is rotated on the axis 10 through the holes in the brackets 11 and the locking element 13 is in the groove 6 of the eccentric 5, preventing its rotation, and the lid securely closes the observation well, with the short end of the plate 9 covers the Central the second hole of the eccentric 5, the axis of which coincides with the axis of the Central rod key (Fig)inserted into the hole 2 of the substrate 1 hatch cover under a special key (figure 2).
The design of the hatch cover inspection of the well, providing a reliable closing of hatches wells, underground utilities and enabling penetration into them only with a special key that facilitates simultaneously lifting and removing the covers from the well for inspection or to carry out work, will find industrial application.
1. Manhole cover observation wells containing base, fixed stops and diametrically them located movable stop with stop and shut-off device, with fixed and movable stops on the basis of the cover from its supporting surface, characterized in that the movable stop is made in the form of a flat Cam with groove for locking and holes key, and consequently the Central hole in the Cam made the hole for the key based on the cover, and the locking device made in the form of swivel on the axis of the plate with short and long shelves with counterbalance and locking element placed on its long shelf on opposite sides of the axis, and the locking element is mounted for engagement with the Cam groove flat, and the short shelf rotary plate is arranged to overlap the Central key hole in the Cam at the location of the locking element in its groove.
2. Manhole cover according to claim 1, characterized in that the edge of the flat Cam interacting with the mouth of the hatch, and the opposite edge is made semicircular shape.
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