|
|
Proposed invention relates to road devices, namely, to hatches with a frame and a bolt, capable of flapping back relative to the frame for provision of closed position of the bolt in the frame. According to the invention, a self-retaining lever of the device has one of ends movably installed on the frame, and may slide in the slot of the guide so that the end of the support may rest against a fixed limiter of the frame during movement of the bolt into the position, in which the hole of the frame is closed to cause bolt reverse and allow for the latter to correctly close the hole of this frame. |
|
|
Articulated joint and respective road inspection device Road inspection device includes frame to limit aperture, and articulated joint. Articulated joint includes plug with locking plate, and joint enabling angular movement of the plug between open and closed positions. Also, the joint includes first cam and first counter cam interacting in first angle range (α). The Joint includes additional cam and additional counter cam interacting in additional angle range (β; γ). First angle range (α) and additional angle range (β; γ) overlap in angular overlapping range which reaches at least 60°, and first cam and counter cam and additional cam and counter cam interact at the same time in that range. |
|
Well hatch with height and tilt adjustable during operation Well hatch with adjustable height and tilt includes case with bearing annular surface in its top part and in its bottom part, positioned inside an annular well element fastened rigidly at well ceiling plate platform. Top and bottom annular bearing surfaces feature coaxial through orifices positioned along the circle opposite to each other. Threaded fastening elements are fixated in orifices of bottom annular bearing surface by nuts blocking free rotation of bolts. Hatch top is covered by cap with locking device. Such version allows adjusting vertical position of fastening elements through respective orifices in top annular bearing surface thus lifting or lowering hatch case or adjusting hatch tilt against the well and roadlevel. |
|
Plug of road inspection chamber and appropriate road inspection chamber Invention relates to a plug for a road inspection chamber equipped with a frame, comprising a blocking element and a base body, forming a surface of covering of the road inspection chamber arranged in the plane of the plug and comprising a seat. The seat and the blocking element are made as capable of locking the plug relative to the frame or relative to the adjacent plug. The seat is made as capable of autonomous retention of the blocking element relative to the base body and with the possibility to resist movement of the blocking element in direction that is perpendicular to the plane of the plug, which attempts to move the blocking element from the surface of covering. Application for access doors for underground utilities. |
|
Process cover is made with a lengthy hole extended preferably in a longitudinal direction, above which a carriage moves with a hole designed for device passage and fixation to control stop valves. At the same time the cover is rigidly fixed in the hatch casing, and the carriage is rigidly fixed in guide slots, relative to the hole. |
|
Manway for access inside manifold pipelines Manway for access inside manifold pipelines comprises a body with a neck, a rotary cover installed inside with a hemispherical shape, sealing elements installed on the inner side of a body neck, a device for pressing of the cover to sealing elements. The body is arranged from two parts tightly joined to each other. One part is arranged in the form of a flange welded into a pipeline with a protruding cantilever nozzle. The second part has a shape of a hemispherical dome with a neck and two diametrically opposite holes for tight inputs of cantilever shafts of an external rotation drive of a hemispherical cover. The cover is arranged between a body and a cantilever nozzle and is equipped with two parallel traction rods, having longitudinal slots, where guide inserts are placed, installed as capable of rotation on cantilever shafts of the external drive of cover rotation. The device of cover pressing to sealing elements is arranged in the form of single-arm levers rigidly fixed at the ends of cantilever shafts with rollers interacting with surfaces of stops formed on traction rods that are parallel and perpendicular to slots of parallel traction rods. Each traction rod is spring-loaded relative guide inserts and equipped with rollers, contacting as the cover rotates until its axis matches with the axis of the body neck with stops fixed on the body. |
|
In a well cover comprising a well cover with a hole, a support bushing with a hole fixed on a board, lock levers, every of which is hingedly joined with the board or the support bushing, and is also hingedly connected to a traction rod, the other end of which is hingedly connected to a sliding nut screwed on a lead screw as capable of displacement along the lead screw as it rotates, a shaft with a circular ledge in the upper part stretches through the support bushing hole, being joined with the lead screw, in the middle part of the support bushing hole there is a seat of larger diameter compared to the hole diameter in the lower part. In the seat there is a shaft circular ledge, the lower surface of which rests against the seat surface in the support bushing so that the shaft may rotate around its longitudinal axis. The screw axis may deviate from the shaft axis, the shaft connection with the lead screw is made as capable of transferring rotation of the axial force. Versions of cover design are provided. |
|
Road inspection manhole comprises a frame determining a central axis (X-X) of a frame and equipped with a hinged link of a frame, and also an element of a frame overhead cover equipped with a hinged link of a cover element. Hinged links are arranged with the possibility to ensure folding back of the cover element in respect to the frame in a disconnection position, at the same time hinged links of the frame and the cover element are arranged as capable of disconnection, when the cover element is in the disconnection position. The inspection manhole comprises a facility to block disconnection of hinged links, which includes the main part and a foot. The foot is directed radially outside relative to the central axis (X-X) of the frame. |
|
In a manhole of an inspection well, comprising a support ring and a cover with a reinforcement frame, according to the invention, the reinforcement frame of the cover is arranged in the form of a reinforcement grid made of coupled longitudinal and transverse reinforcing bars and a framing ring, made of rolled metal of periodical profile, besides, the longitudinal reinforcing bars are arranged inside the framing ring, and the transverse reinforcing bars above the longitudinal bars and the framing ring, and is filled with a non-metal binder of resin, hardener, plasticiser and inert filler, besides, ratio of resin, hardener and plasticiser makes 10:1:0.9 accordingly, at the same time ratio of inert filler and resin makes 6.75:1 accordingly, and ratio of inert filler and resin with hardener and plasticiser makes 5.46:1. |
|
In a well cover (1 version), a support bush has a circular ledge of a larger size compared to a hole in a board, in the upper part, the support bush is inserted into the board hole so that the lower surface of the bush circular ledge rests against the board at the upper side of the board. In the version 2 of the well cover, hole dimensions in the board on the upper surface of the plate is higher than the one on the lower surface of the board, dimensions of the upper part of the support bush body are larger than the lower part, the support bush body is installed inside the board hole and rests against inner surfaces of the board hole, and in the version 3 - there is thread arranged in the board hole, and there is a thread on the outer surface of the support bush, the bush is screwed into the hole with its threaded part. In all versions the lower surface of the circular ledge of a stop screw has a shape of a spherical segment, and the surface of the bush seat has a shape of a truncated cone, which faces upwards with a larger base, the diameter of the spherical segment is less than the larger base of the truncated cone and is larger than the smaller base of the truncated cone. |
|
Well cover comprises a board with an opening for a key, a supporting bush fixed on the lower side of a board, and a screw of the cover locking mechanism passes through its hole. The screw rests onto the supporting bush with its upper end so that it may rotate around the longitudinal axis of the supporting bush. The cover board is hingedly linked to locking levers of the locking mechanism, every of which is hingedly connected to a traction rod, which in its turn is hingedly connected to a lead nut arranged on the screw so that it may move along the screw as it rotates. The locking levers, number of which is at least two, are arranged along the circumference around the screw. Connection of the screw upper end to the supporting bush is arranged with the possibility to divert the screw from the geometric axis of the supporting bush towards any side. |
|
Structure out of composite material and procedure for its fabrication Invention refers to structure out of composite material. The structure consists of plate (2) with upper side (2a), lower side (2b) and of at least the first and second beams (3, 4). Also each beam consists of multitude of surfaces including at least upper surface (3c, 4c), support surface (3b, 4b) and also pair of side surfaces (3a, 4a) at a distance from each other. These side surfaces are located between upper (3c, 4c) and support (3b, 4b) surfaces and adjoin them. Each beam (3, 4) is secured to a lower side of plate (2) on uppers surface (3c, 4c). The first beam (3) has through opening (5) passing between side surfaces (3a). The second beam (4) passes through opening (5). |
|
Protective-hermetic manhole (versions) First version is characterised by the fact that cover with sleeve is hingedly fixed on external side of coaming. Guides are fixed on lower side, in which rods are movably installed, every of which is hingedly joined to slider. Poppet sleeve is movably installed in each guide to interact with coaming, being hingedly attached to adjacent rod. On opposite sides of sleeve wall there are grooves arranged, in which rods are movably installed. Other versions specify various arrangement of manholes. |
|
Well cover with locking mechanism (versions) Well cover with locking mechanism (version 1) consists of a plate with a lock screw having upper end connected to a steady bush fixed to the said plate so that it can rotate inside it and around its longitudinal axis. There are also lock levers in the locking device, which are linked with the said plate. Each lock lever is hinge-connected with sliding nut actuated by the internally installed lock screw. The plate is hinge-connected with steady bush which is capable of turning vertically. Each lock lever is hinge-connected with steady bush and with one end of a traction mechanism. The other end of traction mechanism is also hinge-connected with the said sliding nut. The supports are fixed to the lower surface of plate. There are joint pins in the supports, which ensure steady bush joining with the plate. The well cover with locking mechanism (version 2) consists of a plate with lock levers being hinge-connected with the above plate. Each lock lever is also hinge-connected with one end of traction mechanism coupled with sliding nut. The latter is screwed on lock screw, which is installed in steady bush. The balancing lever is mounted on sliding nut so that it can swing in vertical plane with regard to the above-mentioned sliding nut. Each end of balancing lever is hinge-connected with the other end of traction mechanism. |
|
Hatch cover consists of an upper plate and additional lower locking plate and screws coupling that pull both plates towards each other when cover is operated. Screw coupling screw is hollow and located in the upper plate hole in rigid connection with the plate. The screw coupling nut is coupled with locking plate and installed in the locking plate hole so that it can move in axial direction, be screwed and unscrewed, rotate around screw and be fixed in locking plate hole in working position of screw coupling. The upper nut end is provided with holding lock to prevent axial displacement in locking plate hole in inactive position of screw coupling. The lower nut end is provided with a key mechanism to turn nut around coupling axis. The nut holding mechanism preventing its axial displacement in the locking plate is implemented with a nut-connected ring, whereby the nut rests upon the locking plate freely when screw coupling is inactive. The key turning mechanism is represented with a set of holes being located opposite to each other along the nut wall in longitudinal direction and in its lower part located under the locking plate. There is a flange in the lower part of nut, which contacts with the lower surface of locking plate in the cover working position. |
|
Invention deals with the inspection pits, hatches and other facilities for underground pipeline, water supply networks and sewage pipeline inspection and maintenance. Particularly, the invention relates to mechanisms preventing access of unauthorised persons into inspection pits. The mechanism is intended for lid locking and includes mechanism housing with collar where lid is installed. In the centre of the mechanism, there is a lock screw with head matched for the special wrench and sliding nut, which is connected cinematically with locking levers. The specific feature of this mechanism is no less than three brackets, which are rigidly connected with sliding nut and diverged in radial direction from the above nut. The holders are fixed to brackets ends. There is a locking lever installed axially in the groove of each holder. When lid is closed, the bottom end of the lever is coupled with the housing collar, whereas the upper end rests against the lid. The whole mechanism is suspended on the lock screw with tapered head being placed into the tapered opening in the lid. Nut restrainer is fixed to the lock screw from the opposite side. The restrainer is represented with screw head fixed to the end of lock screw. The locking lever and holder are connected with each other by means of spring turning the lever around axis and pressing the upper lever end to the hatch lid. Thus, the proposed mechanism may be widely used for locking off-the-shelf hatch lids in water supply and sewage pipeline inspection pits. |
|
Inspection well manhole consists of casing with through holes made in the side wall and support band. Casing is installed on support platform. At least three planks are attached to casing side wall inner surface under support band, and with their other ends they are attached to manhole inner side wall. Cover with through holes and cutouts from outer surface side, wherein locking devices are mounted, is installed on casing support band, and lugs either in the form of ribs, or a solid ring are provided on inner surface. Locking device is made in the form of locking screw with a cap designed for a special wrench and lead-screw nut with locking lever rigidly fixed thereon and contacting the casing side wall and support band lower plane when being locked, and one of cover's lugs when being opened. Ring is rigidly fixed on lower locking screw end. Inspection well manholes and street storm-water inlets of any configuration can be designed according to the proposed technical solution. At that manhole covers and street inlets' grids can either be freely supported on casings, or hinged to them. |
|
Locking device for inspection pit hatch locking 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. |
|
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. |
|
Method for inspection well hatch manufacturing 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 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. |
|
Locking device for object to be protected, mainly for inspection pit hatch 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. |
|
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. |
|
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. |
|
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. |
|
Method for manhole chimney and cover replacement 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. |
|
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. |
Another patent 2528980.