Conduit device containing at least one conduit pipe
(57) Abstract:The invention relates to conduit device. The device contains at least one conduit pipe from thermoplastic plastic with a round cross-section channel, the inner wall of which is parallel to the edges of the slide. Ribs slide is made with slip zones in the form of helical lines with opposite direction of winding through the deployment of the inner wall of the channel in the form of a series of waves. The length of a series of waves is in the range of 80 - 160 see the Amplitude of these waves is less than one-quarter of the inner perimeter of the conduit channel. 6 C.p. f-crystals, 4 Il. The invention relates to conduit device containing at least one conduit pipe from thermoplastic plastic with a round cross-section channel with passing parallel edges of the slides, which have slip bands, made in the form of helical lines with opposite direction of winding through the deployment of the inner wall of the channel in the form of a series of waves. The term "conduit " device" means as a separate conduit pipes  , and aggregates cab as individual cables, and bundles of cables that enter or pushing or drawing.From the well-known conduit devices  the length of a series of waves is chosen arbitrarily. This applies also to the amplitude of the waves. There is the possibility that the location of the edges of the slip in a few complete turns with alternating direction of the helix. When pulling or pushing the cable into the conduit channel [1, 2] there are twisting forces acting inhibitory way. In  largely eliminated the occurrence of such twisting forces. In addition, reduces the effort required to push or pull the input cable.The purpose of the invention is the creation of a conduit device, which would have brought not only to minimize the impact torque, but reduced the above linear pulling force.The purpose is achieved thanks to the fact that the wavelength of a series of waves is in the range from 80 to 100 cm and waves have an amplitude which is less than a quarter of the inner perimeter of the channel of the conduit.Edge slides have a height of more than 0.1 mm, mostly 0.3 to 0.5 mm Between the edges of the slide are recesses or grooves. Ribs slide mo approximates the cross-sectional shape of the ribs slide. The length of a series of waves of ribs slide is about 100 cm, the Amplitude of a series of waves of ribs slide is in the range of 1/8-1/4 inner perimeter of the channel of the conduit.In the present invention provides a significant reduction in the linear retractor efforts in comparison with the known forms of execution. This is, in particular, when the diameter of the conduit channel is 30-70 mm, mostly about 70 mm, But the diameter may be large, for example equal to 110 mm Diameter cable or bundle of cables is then, typically, about 50 mm by Changing the wavelength and amplitude of a series of waves of ribs slide you can set the optimum dimensions for each pair of the diameter, i.e. the diameter of the conduit channel, on the one hand, and the diameter of the pulled cable or bundle of cables, on the other hand. Essential for solving the problem of the invention, the data relating to the length of the wave series and amplitude, lead to a significant reduction retractor or stalkivalsa effort. In such experiments it is necessary to pay attention to the fact that the angle between the edges of the slide and the axis of the pipe was not too large, because otherwise, that is,x slip occurs inhibitory component. The wavelength should be in the traditional diameters as large, and the amplitude is the maximum small.In Fig. 1 shows a conduit device, the cross-section of Fig. 2 is a side view with cutaway of Fig.3 - node I in Fig.1; Fig.4 - the location of the edges of the slide in the conduit reamer of the site.Conduit device 1 may contain one or more conduit tubes 2. The jumper 3 you can attach other conduit pipe. Conduit pipe 2 may be outside a circular cross-section. Pipes made of thermoplastic plastic.In the described exemplary embodiment of the invention conduit pipe 2 has a round cross-section channel 4 with an inner wall having passing parallel ribs 5 slip. In Fig.4 ribs 5 sliding on the basis of the scan is directed in the form of a series of waves. The wavelength L is in this example of execution of the invention 100 cm, and it may be equal to from 0 to 160 see for a given wavelength L is the distance between two points of return R in the step is approximately 50 cm, as shown by the double arrow 6. Scan corresponds to what na surface conduit channel 4. If the radius of the conduit channel to take over the unit, you can specify the inner perimeter in angular extent. The total perimeter is 360aboutand the amplitude a of the wave train is equal max 90about.Ribs 5 slides have a height of 0.1 mm, but mostly a height of 0.3 to 0.5 mm In Fig.1 and 3 between the ribs 5 slides are grooves 7, the cross-sectional shape which in this example corresponds to approximately the cross-sectional shape of the ribs 5 of the slip. Amplitude and may be even lower than it is shown in Fig.4, for example, in the range of 1/8-1/4 internal perimeter of the conduit channel 4. 1. CONDUIT DEVICE CONTAINING AT LEAST ONE CONDUIT PIPE from thermoplastic plastic with a circular cross-section conduit channel running parallel to each other on the inner wall edges of the slides, which have slip bands, made in the form of helical lines with opposite direction of winding through the deployment of the inner wall of the channel in the form of a series of waves, characterized in that the wavelength of a series of waves is equal to 80 - 160 cm and waves have amplitude less than 1/4 of the internal perimeter of the conduit 1 mm, but mostly 0,3 - 0,5 mm3. The device under item 1 or 2, characterized in that between the edges of the slide are grooves, the cross-sectional shape which approximately corresponds to the cross-sectional shape of the ribs slide.4. Device according to one of paragraphs.1 to 3, characterized in that the length of a series of waves of ribs slide is ~ 100 cm.5. Device according to one of paragraphs.1 to 4, characterized in that the amplitude of a series of waves of ribs slip 1/8 - 1/4 internal perimeter of the conduit channel.6. Device according to one of paragraphs.1 to 5, characterized in that the diameter of the conduit channel is 30 - 70 mm7. The device according to p. 6, characterized in that the diameter of the conduit channel is ~ 50 mm .
FIELD: electrical engineering; wire or cable laying or their holding in position and protection.
SUBSTANCE: proposed fixing accessory is designed for use in installation and wiring duct whose inner space is divided into at least two compartments 12A and 12B isolated from one another by partition 13 and having two covers 14A, 14B, each being related to respective compartment 12A or 12B; respective partition 13 relates to one of these covers. Proposed straight-through fixing accessory has longitudinal wall 32 that can be used instead of any mentioned partition and at least one passage 31 and fixing means 33 running in longitudinal direction and designed for fixing this straight-through accessory on base 11 of installation and wiring duct. Proposed accessory is used, for instance, in electrical equipment installation and wiring ducts.
EFFECT: simplified design and reduced manufacturing cost of accessory and duct.
20 cl, 10 dwg
FIELD: press forging for designing and manufacturing sections of cable carrying trays.
SUBSTANCE: proposed method involves new cycle of operations affording more advanced engineering process for manufacturing intermediate sections possessing higher strength. Time saved for designing and developing high-strength intermediate sections of cable trays enhances economic efficiency of method.
EFFECT: enlarged functional capabilities and improved quality of cable laying.
1 cl, 19 dwg
FIELD: press and die forging; production of shaped thin-wall sheaths for cable laying.
SUBSTANCE: proposed device has C-shaped perforated section whose sides carry circular locking grips and are provided with inner bosses; they have rectilinear lengths joined on circular depression and on inner side they bear circular bosses; device also has parallel sides and rectilinear sections and fillets; flexible ends of sides have sag h; bottom of C-shaped section has circular transitions and rectangular sections; device also has slots. Device strength is enhanced without increasing thickness of sheathing material, sheath flexibility being effectively used for enhancing pliability of statically enclosed locking transition with opposing and asymmetric disposition of shaped geometry section. Proposed geometry of device enables space-saving installation and wiring of large number of conductors in industrial shops and subsurface conduits.
EFFECT: improved mechanical design and reduced mass of structure; enhanced safety of expensive equipment and communication facilities.
1 cl, 3 dwg
FIELD: installation and wiring brackets for crosswise installation of instruments in tray socle.
SUBSTANCE: proposed installation and wiring bracket mounted on tray socle with relatively facing edges has two cross arms for joining with edges by means of gripping facilities, each incorporating instrument fastening means. Novelty is that fastening means are joined to each cross arm by means of flexible junction assembly affording slight displacement of fastening means along basic direction of cross arm relative to original steady position during instrument attachment to bracket.
EFFECT: simplified design and enlarged functional capabilities of instrument fastening means.
23 cl, 5 dwg
FIELD: electrical engineering.
SUBSTANCE: proposed insulating duct has on one end suspension means made for its attachment to bracket used for installing instrument on tray socle; on other end it has casing designed to close bracket-mounted instrument in a spaced relation; this casing has side wall. Novelty is that suspension means are, essentially, canopies provided with fastening means minimum at two different elevations and at least on part of casing perimeter, at least upper section of casing side wall being removable part.
EFFECT: improved design of duct for trays of different type varieties without limiting its useful volume.
16 cl, 11 dwg
FIELD: press-forging and stamping plant; manufacture of shaped thin-walled cabling trays.
SUBSTANCE: proposed cabling tray incorporates perforated S-shaped section whose lateral end has at least two pairs of through slots per each end to receive and lock groups of separate cables; at least one row of slots are made relative to symmetry axis on tray bottom which are alternating with rows of cylindrical holes disposed at lateral sides of cabling tray; slots are disposed in projections and are alternating in staggered manner; interrupted parts of slots and round depression are formed at definite length of cabling tray; projections are coupled through radial transitions; tops are made in the form of locking parts provided with straight sections and radial transitions; metal sheath thickness meets requirements to strength of box-shaped section enclosed surface relative to top. Novelty is selection of most optimal geometry of tray enabling cable laying in industrial shops and subsurface conduits to ensure safety for expensive equipment and communication facilities.
EFFECT: improved design and reduced cost of cabling tray.
1 cl, 5 dwg
FIELD: electrical engineering.
SUBSTANCE: proposed housing is designed to arrange required pieces of equipment along wiring duct surface-mounted on wall or partition. This housing has frame suited to installation on wall or partition and forms pocket to receive relevant pieces of equipment; this frame has bore and nose on its sides abutting against given wiring duct; mentioned nose is disposed so that it serves to locally close mentioned wiring duct, with due account of frame and bore, in direction transversal with respect to this wiring duct. Novelty is that nose has movable part equipped with two parallel brackets mounted for sliding inside frame so that this movable part is positioned in telescopic manner in compliance with a number of stable fixed positions corresponding to different widths of given wiring duct.
EFFECT: simplified design and reduced cost of housing.
15 cl, 8 dwg
FIELD: electrical engineering.
SUBSTANCE: proposed end thimble designed for closing butt-end of wiring duct has closing part meant for closing inner space of mentioned duct and fastening part intended to secure this thimble on bottom part of duct base. Novelty is that proposed fastening part has at least one guide bushing designed to drive-in fastening nail; it rises in essence perpendicularly to bottom part whose depth actually equals that of mentioned base.
EFFECT: enhanced reliability of protecting end thimble structure against destruction.
20 cl, 12 dwg
FIELD: closing ends of wiring duct.
SUBSTANCE: proposed closing thimble has covering part designed to close inner space of wiring duct and fastening part used to secure end thimble on bottom part of wiring duct base; covering and fastening parts of this end thimble are joined together by means of junction part. Novelty is that junction part forms flexible coupling affording slight displacement of thimble covering part relative to its fastening part.
EFFECT: enhanced economic efficiency in thimble manufacture and facilitated installation of thimble.
12 cl, 11 dwg
FIELD: the invention refers to the field of electro technique and touches upon the peculiarities of constructive making of the products out of the rolled metal used in quality of an armature for extended cable lines particularly for communication lines used at installing of signaling, special facilities and other service equipment.
SUBSTANCE: the essence of the invention is in that elastic formed longitudinal lid has lengthwise a C-shaped profile with located opposite sharp-cornered lugs on the butt-ends having radius curving. On the surface of the lid there is at least one trapezoidal lug with radius transitions of coupling with the plates of the lid. The sides of the butt-ends of the lid are directed under an angle providing a space gap relatively to the surface of abutment to the radius profile formed by the mentioned sharp-cornered lugs. At that according to this invention interior lugs of h height having radius couplings with the plates of the lid providing enhanced solidity to its construction are fulfilled across the width of the C-shaped profile from the side of the butt-ends of the lid.
EFFECT: simplification of the construction, enhancing solidity, decreasing material consumption and increasing manufacturability of elastic formed longitudinal lid.