CN109167309B

CN109167309B - Bracket for plugging cable

Info

Publication number: CN109167309B
Application number: CN201811206576.8A
Authority: CN
Inventors: 李可心; 丁云天; 黄众; 李士华
Original assignee: Hangzhou Boyuan Power Equipment Co ltd
Current assignee: Hangzhou Boyuan Power Equipment Co ltd
Priority date: 2018-10-17
Filing date: 2018-10-17
Publication date: 2020-11-10
Anticipated expiration: 2038-10-17
Also published as: CN109167309A

Abstract

The invention belongs to the technical field of electric power engineering, and particularly relates to a bracket for plugging a cable, which comprises a fixed pipe arranged at the end part of a pipeline, wherein the fixed pipe comprises two fixed half pipes which are symmetrical to each other, flanges are radially and integrally formed on two sides of the fixed half pipes, a first through hole is formed in each flange, a fixing bolt penetrates through each first through hole, the two fixed half pipes are fixedly connected through the fixing bolt, a semicircular end cover is integrally formed on the end surface of each fixed half pipe, a semi-ring positioning plate is integrally formed at the top end of an arc-shaped plate, the arc-shaped plate and the semi-ring positioning plate form a connecting plate, the two connecting plates form a connecting sleeve, an external thread is formed on the outer wall of the connecting sleeve, a nut is screwed on the upper part of the end cover through the external thread, the nut is formed by fixedly connecting the two half blocks. The purpose is as follows: the problems of low working efficiency and loose sealing caused by structural defects of the conventional cable plugging device are solved.

Description

Bracket for plugging cable

Technical Field

The invention belongs to the technical field of electric power engineering, and particularly relates to a bracket for plugging a cable.

Background

The cable duct bank is the cable laying pipeline, and the material generally is cement, iron pipe or MPP pipe etc. and the cable duct bank mouth of pipe generally needs the shutoff, if not the shutoff, in case certain calandria well leaks, just easily leads to ponding to spread to other calandria wells along the calandria hole, worsens the operational environment of cable then, makes the first long-term soaking in middle of the head, reduces the life of the first in middle of the cable greatly. At present, the pipe discharging holes of an underground switching station are plugged by using cement, but the cement is a rigid material, once the pipe discharging holes expand with heat and contract with cold, cracks can be generated, the cement plugging is in an irregular shape in the pipe discharging holes, the pressure resistance is poor, the rainwater can flow back into a power distribution room frequently in actual work, and the safe operation of the human body, equipment and a power grid is seriously threatened.

The Chinese invention application (application No. 201310398820.6) discloses a cable duct bank concrete encapsulation expansion joint structure and a construction method thereof, the cable duct bank concrete encapsulation expansion joint structure comprises a concrete encapsulation and a cable duct bank, a concrete encapsulation reinforcing bar is completely divided at the expansion joint, a filling plate is arranged at the expansion joint, holes are formed in the filling plate and the cable duct bank passes through, each side of the filling plate is smaller than the size of the concrete encapsulation, a groove formed by the concrete in the encapsulation and the filling plate is filled with a sealing material, a connected reinforcing steel bar is arranged in a concrete storm wind, the other end of the connected reinforcing steel bar is a free end of an outer sleeve, the sleeve is plugged by a wooden plug at the extending end of a non-connected reinforcing steel bar, one end of the connecting reinforcing steel bar at the expansion joint of the device is sleeved with the sleeve, free expansion and contraction can be realized, the damage of the.

But the device structure is complicated, the work progress is too loaded down with trivial details, work efficiency has seriously been reduced, and because the construction is nonstandard, often lead to cable duct bank mouth of pipe irregular, the recess that concrete and infill panel are constituteed is clogged with the sealant, the joint reinforcement stretches into the end and adopts the wooden plug to block, because the elasticity of sealant and wooden plug is not enough, it is tight to the easy sealing in the irregular place of mouth of pipe, simultaneously generate heat when the cable during operation easily, the sealing part expands easily, the elasticity of sealant and wooden plug is less, be difficult to in time compensate the gap that the inflation of cable duct bank caused, can lead to sealed not tight problem.

Disclosure of Invention

The purpose of the invention is: the bracket is used for solving the problems of low working efficiency and loose sealing caused by structural defects of the conventional cable plugging device.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:

a bracket for plugging a cable comprises a fixed pipe arranged at the end part of a pipeline, wherein the fixed pipe comprises two mutually symmetrical fixed half pipes, flanges are radially and integrally formed at two sides of the fixed half pipes, a first through hole is formed in each flange, a fixing bolt is penetrated into each first through hole, the two fixed half pipes are fixedly connected through the fixing bolt, a semicircular end cover is integrally formed on the end surface of each fixed half pipe, a semicircular hole is formed in each end cover, a first semicircular boss is arranged at the position, corresponding to the semicircular hole, of the lower end surface of each end cover, the side surface, away from the semicircular hole, of each first semicircular boss inclines inwards gradually from top to bottom, a second semicircular boss is further arranged on the lower end surface of each end cover, the side surface, close to the semicircular hole, of each second semicircular boss inclines outwards gradually from top to bottom, and a first slotted hole is formed in one side of each end cover, the utility model discloses a rubber pipe end cover, including first arc slotted hole, first arc slotted hole is downthehole to wear to be equipped with the arc, arc top integrated into one piece has the semi-ring locating plate, the connecting plate is constituteed to arc and semi-ring locating plate, two the adapter sleeve is constituteed to the connecting plate, the external screw thread has been seted up to the adapter sleeve outer wall, the adapter sleeve has the nut through the external screw thread spiro union in the end cover top, the nut is formed by two half fixed connection, the arc free end is connected with the rubber boss of semicircle platform shape, rubber boss longitudinal section is big-end-.

Further inject, first screw hole and first ladder hole have been seted up respectively on half piece, wear to be equipped with first connecting bolt in the first ladder hole, two half pieces are by two first connecting bolt fixed connection. Such structural design, through first connecting bolt two half fixed together, simple structure, the practicality is strong.

Further inject, the arc free end is equipped with the arc boss, the terminal surface is seted up and is led to the groove with arc boss assorted under the rubber boss. According to the structural design, the rubber boss is fixed on the arc-shaped plate through the arc-shaped boss, and the rubber boss and the arc-shaped plate are in split design, so that the manufacturing difficulty can be reduced.

Further limit, the longitudinal section of the arc-shaped boss is of an isosceles trapezoid structure with a small upper part and a large lower part. The structural design has the advantages that the arc-shaped bosses are matched with the structural shapes of the rubber bosses, the longitudinal sections of the arc-shaped bosses are of isosceles trapezoid structures with small upper parts and large lower parts, and the stress is more uniform.

Further inject, the second step hole has been seted up to the terminal surface under the arc boss, the terminal surface has seted up the second screw hole in second step hole corresponding position under the arc, wear to be equipped with the second connecting bolt in the second step hole. Due to the structural design, the arc-shaped boss is fixed through the second connecting bolt, the structure is simple, and the installation is convenient.

Further inject, the terminal surface integrated into one piece has cowl under the arc boss. Such structural design uses cowl to block up rubber boss lower extreme face, and the deflection of reducible rubber boss when using, and the leakproofness is better.

Further inject, be equipped with the closing cap between first semi-annular boss and the second semi-annular boss, first semi-annular boss, second semi-annular boss and closing cap are by rubber integrated into one piece, constitute the rubber semicircle, the terminal surface has seted up under the end cover with closing cap assorted annular, set up on the end cover with first arc slotted hole assorted second arc slotted hole. According to the structural design, the first semi-annular boss and the second semi-annular boss are separated from the end cover, the first semi-annular boss and the second semi-annular boss are made of rubber, the end cover is made of hard materials, and the manufacturing difficulty can be reduced.

Further inject, one side of the semi-ring positioning plate is provided with a saw-toothed boss, and the other side is provided with a saw-toothed groove. Such structural design for two connecting plates are when constituteing the adapter sleeve, and cockscomb structure boss and cockscomb structure recess are mutually supported, play the effect of mutual location between two connecting plates, avoid the external screw thread of connecting plate outer wall to stagger, and the practicality is stronger.

Further limiting, the surface of the sawtooth-shaped boss is coated with a magnet layer. Such structural design, when cockscomb structure boss and cockscomb structure groove mutually support, the magnet layer adsorbs another semi-ring locating plate, avoids two connecting plates in disorder.

Further inject, the end cover lower extreme face is fixed half a tub of inner wall and between the annular integrated into one piece have the sand grip. Such structural design, when using, saw out two and sand grip assorted breach with the saw at pipeline tip, then in the breach to the sand grip card, when rotatory to the nut, can avoid fixed pipe to rotate thereupon, it is more convenient to use.

By adopting the technical scheme, the cable is plugged by the two rubber bosses and the two rubber half rings, the structure is simple, the operation is convenient, and the working efficiency can be greatly improved; meanwhile, the rubber boss is extruded by the arc-shaped boss and the arc-shaped baffle plate, the first semi-annular boss and the second semi-annular boss are respectively extruded on the cable and the pipeline, and the sealing performance is better.

Drawings

The invention is further illustrated by the non-limiting examples given in the accompanying drawings;

FIG. 1 is a schematic structural diagram of an embodiment of a bracket for cable plugging according to the present invention;

FIG. 2 is a schematic cross-sectional view of an embodiment of a bracket for cable plugging according to the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 4 is a schematic view of a mounting tube in an embodiment of a bracket for cable closure according to the present invention;

FIG. 5 is a schematic view of an embodiment of a bracket for a cable closure according to the present invention;

FIG. 6 is a schematic view of a rubber half-ring of an embodiment of a bracket for cable closure according to the present invention;

fig. 7 is a schematic structural view of a connecting sleeve in an embodiment of a bracket for cable plugging according to the present invention;

FIG. 8 is a schematic structural diagram of a connecting sleeve and a rubber boss in an embodiment of a bracket for cable plugging according to the present invention;

the main element symbols are as follows:

pipeline 1, cable 10, fixed pipe 2, fixed half pipe 20, turn-ups 21, first through-hole 211, end cover 22, semicircle orifice 221, first semi-annular boss 23, closing cap 230, second semi-annular boss 24, first arc slotted hole 25, second arc slotted hole 250, arc 3, semi-ring locating plate 31, half 4, first screw hole 41, first shoulder hole 42, rubber boss 5, arc boss 50, arc baffle 51.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

As shown in fig. 1 to 8, the bracket for plugging a cable of the present invention comprises a fixed pipe 2 installed at an end of a pipeline 1, the fixed pipe 2 comprises two fixed half pipes 20 which are symmetrical to each other, flanges 21 are radially and integrally formed at two sides of the fixed half pipes 20, a first through hole 211 is formed on the flange 21, a fixing bolt penetrates through the first through hole 211, the two fixed half pipes 20 are fixedly connected by the fixing bolt, a semicircular end cover 22 is integrally formed on an end surface of the fixed half pipe 20, a semicircular hole 221 is formed on the end cover 22, a first semicircular boss 23 is arranged at a position of a lower end surface of the end cover 22 corresponding to the semicircular hole 221, a side surface of the first semicircular boss 23 far away from the semicircular hole 221 is gradually inclined inward from top to bottom, a second semicircular boss 24 is further arranged on the lower end surface of the end cover 22, a side surface of the second semicircular boss 24 near the semicircular hole 221 is gradually inclined outward from top to, end cover 22 one side has been seted up first arc slotted hole 25, wear to be equipped with arc 3 in the first arc slotted hole 25, 3 top integrated into one piece of arc have semi-ring locating plate 31, the connecting plate is constituteed to arc 3 and semi-ring locating plate 31, the adapter sleeve is constituteed to two connecting plates, the external screw thread has been seted up to the adapter sleeve outer wall, the adapter sleeve has the nut through the external screw thread spiro union in end cover 22 top, the nut is formed by two half 4 fixed connection, 3 free ends of arc are connected with the rubber boss 5 of semicircle platform shape, 5 longitudinal sections of rubber boss are big-end-up's isosceles trapezoid structure.

First threaded holes 41 and first stepped holes 42 are respectively formed in the half blocks 4, first connecting bolts penetrate through the first stepped holes, and the two half blocks 4 are fixedly connected through the two first connecting bolts. Such structural design, through first connecting bolt two half 4 fixed together, simple structure, the practicality is strong.

The free end of the arc plate 3 is provided with an arc boss 50, and the lower end face of the rubber boss 5 is provided with a through groove matched with the arc boss 50. Such structural design fixes rubber boss 5 on arc 3 through arc boss 50, adopts the components of a whole that can function independently design between rubber boss 5 and the arc 3, can reduce the manufacturing degree of difficulty.

The longitudinal section of the arc boss 50 is in an isosceles trapezoid structure with a small upper part and a big lower part. Due to the structural design, the arc-shaped boss 50 is matched with the structural shape of the rubber boss 5, the longitudinal section of the arc-shaped boss is of an isosceles trapezoid structure with a small upper part and a large lower part, and the stress is more uniform.

The end surface has seted up the second step hole under the arc boss 50, and the second screw hole has been seted up in second step hole corresponding position to end surface under the arc 3, wears to be equipped with the second connecting bolt in the second step hole. Due to the structural design, the arc-shaped boss 50 is fixed through the second connecting bolt, the structure is simple, and the installation is convenient.

The lower end surface of the arc boss 50 is integrally formed with an arc baffle 51. Due to the structural design, the lower end face of the rubber boss 5 is blocked by the arc-shaped baffle 51, the deformation of the rubber boss 5 in use can be reduced, and the sealing performance is better.

A sealing cover 230 is arranged between the first semi-annular boss 23 and the second semi-annular boss 24, the first semi-annular boss 23, the second semi-annular boss 24 and the sealing cover 230 are integrally formed by rubber to form a rubber half ring, the lower end face of the end cover 22 is provided with a ring groove matched with the sealing cover 230, and the end cover 22 is provided with a second arc-shaped groove hole 250 matched with the first arc-shaped groove hole 25. Due to the structural design, the first semi-annular boss 23 and the second semi-annular boss 24 are separated from the end cover 22, the first semi-annular boss 23 and the second semi-annular boss 24 are made of rubber, and the end cover 22 is made of hard materials, so that the manufacturing difficulty can be reduced.

One side of the semi-ring positioning plate 31 is provided with a saw-toothed boss, and the other side is provided with a saw-toothed groove. Such structural design for two connecting plates are when constituteing the adapter sleeve, and cockscomb structure boss and cockscomb structure recess are mutually supported, play the effect of mutual location between two connecting plates, avoid the external screw thread of connecting plate outer wall to stagger, and the practicality is stronger.

The surface of the zigzag boss is coated with a magnet layer. Such structural design, when the cockscomb structure boss with cockscomb structure groove mutually supports, the magnet layer adsorbs another semi-ring locating plate 31, avoids two connecting plates in disorder.

The lower end face of the end cap 22 is integrally formed with a convex strip between the inner wall of the fixed half pipe 20 and the ring groove. Such structural design, when using, saw out two and sand grip assorted breach at 1 tip of pipeline with the saw, then in the breach to the sand grip card, when rotatory to the nut, can avoid fixed pipe 2 to rotate along with it, it is more convenient to use.

In this embodiment, when in use, the rubber boss 5 is inserted into the arc-shaped plate 3, then the arc-shaped boss 50 is placed into the through groove, the second connecting bolt is placed into the second step to complete the fixation among the arc-shaped plate 3, the rubber boss 5 and the arc-shaped boss 50, at this time, the rubber boss 5 is fixed on the connecting plate, then the rubber half-ring is placed into the ring groove of the fixed half-pipe 20, so that the positions of the first arc-shaped slot 25 and the second arc-shaped slot 250 correspond to each other, and then the arc-shaped plate 3 of the connecting plate is clamped in the first arc-shaped slot 25; then, sawing a gap matched with the raised line on the end face of the pipeline 1 by using a saw, then penetrating the cable 10 into the pipeline 1, respectively folding the previously assembled spare and accessory parts from two sides of the cable 10, fixing the two fixed half pipes 20 together by using a fixing bolt, then folding the two fixed half pipes from two sides of the cable, and fixing by using a first connecting bolt; promote fixed pipe 2, make in the sand grip card goes into the breach, then the nut spiro union of constituteing by two half 4 is on the adapter sleeve, grasp fixed pipe 2 with the hand, swivel nut, make the nut remove to fixed pipe 2 direction, back on end cover 22 is pushed up to the lower terminal surface of nut, continue the rotation, make the adapter sleeve rebound, drive two rubber boss 5 and upwards remove, thereby hug closely cable 10 to the first semi-annular boss 23 of rubber semi-ring, pipeline 1 is hugged closely to second annular boss 24, accomplish the shutoff to cable 10.

The bracket for plugging the cable provided by the invention is described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims

1. A tray for cable plugging, characterized by: the pipe comprises a fixed pipe (2) arranged at the end part of a pipeline (1), wherein the fixed pipe (2) comprises two fixed half pipes (20) which are symmetrical to each other, flanges (21) are formed on the two sides of the fixed half pipes (20) in a radial integrated manner, first through holes (211) are formed in the flanges (21), fixing bolts are arranged in the first through holes (211) in a penetrating manner, the two fixed half pipes (20) are fixedly connected through the fixing bolts, semicircular end covers (22) are formed on the end faces of the fixed half pipes (20) in an integrated manner, semicircular holes (221) are formed in the end covers (22), first semicircular bosses (23) are arranged on the lower end faces of the end covers (22) at positions corresponding to the semicircular holes (221), the side faces of the first semicircular bosses (23) far away from the semicircular holes (221) are gradually inclined inwards from top to bottom, and second semicircular bosses (24) are further arranged on the lower end faces of the end covers (, the second semi-annular boss (24) is close to the side face of one side of the semicircular hole (221) and gradually inclines from top to bottom, a first arc-shaped groove hole (25) is formed in one side of the end cover (22), an arc plate (3) is arranged in the first arc-shaped groove hole (25) in a penetrating mode, a semi-ring positioning plate (31) is integrally formed at the top end of the arc plate (3), the arc plate (3) and the semi-ring positioning plate (31) form a connecting plate, the two connecting plates form a connecting sleeve, an external thread is formed in the outer wall of the connecting sleeve, the connecting sleeve is connected with a nut above the end cover (22) through the external thread in a threaded mode, the nut is formed by fixedly connecting two half blocks (4), the free end of the arc plate (3) is connected with a semi-circular truncated cone-shaped rubber boss (5), the longitudinal section of the rubber boss (5) is of an isosceles trapezoid structure with a large upper portion and a small portion, first connecting bolts penetrate through the first step holes, and the two half blocks (4) are fixedly connected through the two first connecting bolts.

2. A tray for cable closure according to claim 1, wherein: the free end of the arc plate (3) is provided with an arc boss (50), and the lower end face of the rubber boss (5) is provided with a through groove matched with the arc boss (50).

3. A tray for cable closure according to claim 2, in which: the longitudinal section of the arc-shaped boss (50) is of an isosceles trapezoid structure with a small upper part and a large lower part.

4. A tray for cable closure according to claim 3, wherein: the end surface under the arc boss (50) has been seted up the second step hole, second screw hole has been seted up in second step hole corresponding position to the end surface under arc (3), wear to be equipped with second connecting bolt in the second step hole.

5. A tray for cable closure according to claim 4, in which: an arc baffle (51) is integrally formed on the lower end face of the arc boss (50).

6. A tray for cable closure according to claim 5, in which: be equipped with closing cap (230) between first semi-ring shape boss (23) and second semi-ring shape boss (24), first semi-ring shape boss (23), second semi-ring shape boss (24) and closing cap (230) by rubber integrated into one piece, constitute the rubber semicircle, end cover (22) lower terminal surface seted up with closing cap (230) assorted annular, seted up on end cover (22) with first arc slotted hole (25) assorted second arc slotted hole (250).

7. A tray for cable closure according to claim 6, in which: one side of the semi-ring positioning plate (31) is provided with a sawtooth boss, and the other side of the semi-ring positioning plate is provided with a sawtooth groove.

8. A tray for cable closure according to claim 7, in which: and the surface of the zigzag boss is coated with a magnet layer.

9. A tray for cable closure according to claim 8, wherein: the lower end face of the end cover (22) is integrally formed with a convex strip between the inner wall of the fixed half pipe (20) and the annular groove.