CN212231060U

CN212231060U - Plugging device of power cable protection pipe

Info

Publication number: CN212231060U
Application number: CN202020690628.XU
Authority: CN
Inventors: 赵成方
Original assignee: Zhejiang Bangde Pipe Industry Co ltd
Current assignee: Zhejiang Bangde Pipe Industry Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-12-25
Anticipated expiration: 2030-04-29

Abstract

The utility model relates to the technical field of cable plugging, in particular to a plugging device of a power cable protection tube, which comprises a tube body, wherein a sleeve is arranged on the tube body, a connecting block, a connecting plate and a rubber cylinder are arranged in the sleeve, a plurality of connecting columns are arranged at the bottom of the rubber cylinder, a rotating column is arranged on the connecting columns in a penetrating way, a first through hole is arranged on the sleeve, a second through hole is arranged on the connecting plate, a third through hole is arranged on the rotating column, a fourth through hole is arranged on the rubber cylinder, a hollow screw rod is arranged in the first through hole, the second through hole, the third through hole and the fourth through hole in a penetrating way, one end of the screw rod is provided with a connecting rod, a screw cap is in threaded connection with the connecting rod, the problem that the sealing bag of a pipeline cannot be completely and tightly attached to the protection tube is solved, a local gap still, the pipeline sealing bag is easy to damage in the disassembly process and is not beneficial to reuse.

Description

Plugging device of power cable protection pipe

Technical Field

The utility model relates to a cable shutoff technical field especially relates to a plugging device of power cable protection pipe.

Background

With the progress of information-based construction in China, the paving engineering of electric power and cables is more and more, and the electric power cable protection tubes and communication optical cable protection tubes used in the current market generally use Polyethylene (PE) tubes, polypropylene (PP) tubes, polyvinyl chloride (PVC) tubes, glass Fiber Reinforced Plastic (FRP) tubes and the like. Therefore, plugging the cable protection pipe to prevent sewage, harmful gas or foreign matters from entering the pipe becomes a basic requirement which is not ignored in power construction.

At present, the pipeline plugging is mainly realized by adopting an inflatable pipeline sealing bag and utilizing the inflation expansion principle for pipeline plugging, although the pipeline sealing bag can plug between a pipeline and a cable, after the pipeline sealing bag expands, the surface of the pipeline sealing bag cannot be completely and tightly attached to the inner wall of a protection pipe, a local gap still possibly exists between the surface of the pipeline sealing bag and the inner wall of the protection pipe, the cable plugging effect is poor, and when the cable is damaged and needs to be maintained, the pipeline sealing bag is easy to damage in the disassembly process, and the pipeline sealing bag is not beneficial to reuse.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a plugging device of power cable protection tube is used for solving and can't closely laminate completely between seal for pipe joints bag and the protection tube, still probably has local gap between seal for pipe joints bag surface and the protection tube inner wall, leads to cable shutoff effect not good, and when the cable damage need maintain, damages easily at dismantlement in-process seal for pipe joints bag, is unfavorable for the problem of reuse.

The utility model discloses an above-mentioned technical problem is solved to following technical means:

a plugging device of a power cable protection tube comprises a tube body, wherein a sleeve is installed on the tube body, a connecting plate is installed in the sleeve, a plurality of connecting blocks are fixedly installed between the sleeve and the connecting plate, a rubber cylinder is installed in the sleeve and is coaxially arranged with the sleeve, a plurality of connecting columns are fixedly installed at the bottom of the rubber cylinder, rotating columns are arranged on the connecting columns in a penetrating mode, free ends of the connecting columns are connected with the connecting plate, a first through hole is formed in the center of the sleeve, a second through hole is formed in the center of the connecting plate, a third through hole is formed in the center of the rotating columns, a fourth through hole is formed in the center of the rubber cylinder, the first through hole, the second through hole, the third through hole and the fourth through hole are concentrically arranged, and a hollow lead screw is arranged in the first through hole, the second through hole, the third through hole and the fourth through hole, one end of the screw rod is fixedly provided with a hollow connecting rod, and the connecting rod is in threaded connection with a screw cap.

Further, the fixed screw thread strip that is equipped with on the outer wall of rotation post, the screw thread strip offsets with the inner wall of rubber cylinder, a plurality of fifth through-holes have been seted up on the rotation post, the spliced pole is worn to locate in the fifth through-hole, a plurality of sixth through-holes have been seted up on the connecting plate, the free end of spliced pole is fixed in the sixth through-hole, sets up like this, passes the fifth through-hole on the rotation post through the spliced pole to fix in the sixth through-hole of connecting plate, when making the lead screw rotate the drive rotation post and rotate, the rotation post can only follow the lead screw direction and remove.

Further, the one end fixed mounting that first through-hole was worn out to the lead screw has solid fixed ring, connecting rod fixed mounting is behind solid fixed ring, the external screw thread has been seted up on the connecting rod, be equipped with the internal thread that matches with the external screw thread on the screw cap inner wall, set up like this, through set up the external screw thread on the connecting rod, set up the internal thread on the screw cap inner wall, will wear to establish the cable in connecting rod and lead screw and screw to because solid fixed ring blocks the screw cap, make the screw cap can not smooth silk easily.

Further, the both ends of screw cap are all opened, the screw cap is the toper along the section of axis, sets up like this, and it is tight more soon more to revolve on the connecting rod through the screw cap, can be sealed with the cable of wearing to establish in the connecting rod, avoids external steam to get into.

Furthermore, a first threaded hole is formed in the sleeve, a second threaded hole is formed in the pipe body, the first threaded hole is communicated with the second threaded hole, a bolt is connected in the first threaded hole in a threaded mode, and the sleeve and the pipe body can be fixed relatively through rotation of the bolt.

The utility model relates to a plugging device of power cable protection pipe, through cup jointed the sleeve on the body, install the bolt on the sleeve, can be with the position relatively fixed of sleeve and body, install the connecting block in the sleeve, the one end and the sleeve inner wall of connecting block are fixed, the other end is fixed with the connecting plate, install the packing element in the sleeve, fixed mounting has the spliced pole in the packing element, install the rotation post in the sleeve, the spliced pole is worn to establish the fifth through-hole on the rotation post, and block in the sixth through-hole on the connecting plate, make rotation post and packing element stably install in the sleeve, rotate on the sleeve and install hollow lead screw, the lead screw is worn to establish connecting plate and rotation post, and rotate and install in the packing element, the rotation lead screw can drive the rotation post and move along the lead screw, thereby offset the lateral wall of packing element with the body inner; the lead screw installs hollow connecting rod outside the sleeve, the spiral is installed the section and is conical screw cap on the connecting rod, can screw, seal the cable of wearing to establish in connecting rod and lead screw, avoid can't closely laminating completely between seal for pipe bag and the protection tube, still probably there is local gap between seal for pipe bag surface and the protection tube inner wall, it is not good to lead to cable shutoff effect, and when the cable damage need be maintained, damage easily at dismantlement in-process seal for pipe bag, be unfavorable for reuse's problem.

Drawings

Fig. 1 is a schematic structural view of a plugging device for a power cable protection tube according to the present invention;

fig. 2 is a schematic cross-sectional structural view of a plugging device for a power cable protection tube according to the present invention;

fig. 3 is a schematic view of a split structure of a sleeve, a screw rod and a rotating column part in the plugging device of the power cable protection tube of the present invention;

fig. 4 is a schematic cross-sectional structural view of a sleeve and a rubber cylinder part in the plugging device of the power cable protection tube of the present invention;

the connecting rod comprises a pipe body 1, a sleeve 2, a first threaded hole 201, a first through hole 202, a screw cap 3, a connecting rod 4, a fixing ring 401, a bolt 5, a rubber cylinder 6, a connecting column 601, a connecting plate 602, a connecting block 603, a fourth through hole 604, a second through hole 605, a sixth through hole 606, a screw rod 7, a rotating column 8, a third through hole 801, a fifth through hole 802 and a threaded strip 803.

Detailed Description

The invention will be described in detail with reference to the following drawings and specific embodiments:

as shown in fig. 1-4, the utility model discloses a plugging device of power cable protection tube, including body 1, install sleeve 2 on the body 1, sleeve 2 one end opening, other end are sealed, install rubber tube 6 in the sleeve 2, rubber tube 6 and the coaxial setting of sleeve 2 to rubber tube 6 also one end opening, other end are sealed, and the opening of rubber tube 6 is towards the blind end of sleeve 2.

A gap is formed between the sleeve 2 and the rubber tube 6, and the width of the gap is equal to the thickness of the tube body 1. First screw hole 201 has been seted up on sleeve 2, the second screw hole has been seted up on body 1, first screw hole 201 and second screw hole intercommunication, threaded connection has bolt 5 in the first screw hole 201, during the plugging device installation of this embodiment, body 1 inserts in the gap between sleeve 2 and the rubber tube 6, sleeve 2 pastes with 1 surface of body mutually, rubber tube 6 pastes with 1 internal surface of body mutually, it is downthehole to twist first screw hole 201 on sleeve 2 and the second screw hole on the body 1 through bolt 5, can be with sleeve 2 and body 1 relatively fixed.

A plurality of connecting columns 601 parallel to the axis of the rubber tube 6 are fixedly mounted at the bottom in the rubber tube 6, and the number of the connecting columns 601 is two in the embodiment. The free end of the connecting column 601 extends out of the rubber cylinder 6, a connecting plate 602 is installed at the free end of the connecting column 601 in the sleeve 2, the connecting plate 602 is perpendicular to the axis of the sleeve 2, two sixth through holes 606 are formed in the connecting plate 602, and the free ends of the two connecting columns 601 are respectively fixed in the two sixth through holes 606. Two connecting blocks 603 are fixed between the connecting plate 602 and the closed end of the sleeve 2 for fixing the relative position of the connecting plate 602.

The inner side of the rubber cylinder 6 is further provided with a rotating column 8, the rotating column 8 is provided with a plurality of fifth through holes 802, the connecting column 601 penetrates through the fifth through holes 802, and the rotating column 8 can axially slide along the connecting columns 601. The outer wall of the rotating column 8 is fixedly provided with a thread strip 803, and the thread strip 803 is abutted against the inner wall of the side wall of the rubber cylinder 6. The central point of sleeve 2 puts and has seted up first through-hole 202, the central point of connecting plate 602 puts and has seted up second through-hole 605, the central point of rotation post 8 puts and has seted up third through-hole 801, the central point of rubber tube 6 puts and has seted up fourth through-hole 604, first through-hole 202, second through-hole 605, third through-hole 801 and fourth through-hole 604 all set up with one heart, and wear to be equipped with hollow lead screw 7 in first through-hole 202, second through-hole 605, third through-hole 801 and the fourth through-hole 604, make lead screw 7 stable mounting on sleeve 2. The screw rod 7 is in threaded connection with the third through hole 801, so that the screw rod 7 can drive the rotating column 8 to move on the screw rod 7, and the parts, attached to the first through hole 202, the second through hole 605 and the fourth through hole 604, of the screw rod 7 are all polished rods.

One end of the screw rod 7 penetrating through the first through hole 202 is fixedly provided with a fixing ring 401, a hollow connecting rod 4 is fixedly arranged behind the fixing ring 401 on the screw rod 7, the diameter of the connecting rod 4 is the same as the inner diameter of the screw rod 7, and the inside of the connecting rod 4 is communicated with the inside of the screw rod 7. The external screw thread has been seted up on connecting rod 4, threaded connection has screw cap 3 on connecting rod 4, the equal opening in 3 both ends of screw cap, and screw cap 3 is the toper along the section of its axis, is equipped with the internal thread that matches with the external screw thread on the 3 inner walls of screw cap, can screw and seal the cable of wearing to establish in connecting rod 4 and lead screw 7, and because solid fixed ring 401 blocks screw cap 3, gu fixed ring 401 can provide the support for screw cap 3, make screw cap 3 can not smooth the silk easily.

The utility model discloses a use method as follows: when the sealing device is used, the sleeve 2 is sleeved on the pipe body 1, the sleeve 2 and the pipe body 1 are fixed through the bolt 5, a cable in the pipe body 1 sequentially penetrates through the hollow screw rod 7 and the connecting rod 4, the connecting rod 4 is rotated, the connecting rod 4 rotates to drive the screw rod 7 to rotate, the screw rod 7 rotates to drive the rotating column 8 to move towards the rubber cylinder 6 on the screw rod 7, so that the side wall of the rubber cylinder 6 is abutted against the inner wall of the pipe body 1, meanwhile, the external thread 801 on the rotating column 8 extrudes the side wall of the rubber cylinder 6, and the rubber cylinder 6 and the pipe body 1 are sealed more tightly; the screw cap 3 is rotated towards the direction of the fixing ring 401, so that the screw cap 3 is in close contact with the cable, the tail end of the connecting rod 4 is sealed, water vapor is prevented from entering, and the problems that in the prior art, a pipeline sealing bag cannot be completely and closely attached to a protection pipe, a local gap still exists between the surface of the pipeline sealing bag and the inner wall of the protection pipe, the cable is poor in plugging effect, and when the cable is damaged and needs to be maintained, the pipeline sealing bag is easily damaged in the dismounting process, and the cable is not beneficial to reuse are solved; during the dismantlement, the screw rod 7 is rotated in the reverse direction, makes the screw rod 7 drive and rotates post 8 and break away from rubber cylinder 6, and the screw cap 3 is rotated in the reverse direction, makes the screw cap 3 loosen the cable, loosens bolt 5 again, can take out plugging device, and the constructor of being convenient for overhauls.

Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims. The technology, shape and construction parts which are not described in detail in the present invention are all known technology.

Claims

1. The utility model provides a plugging device of power cable protection pipe, includes body (1), its characterized in that: the pipe body (1) is provided with a sleeve (2), a connecting plate (602) is arranged in the sleeve (2), a plurality of connecting blocks (603) are fixedly arranged in the sleeve (2) and between the connecting plates (602), a rubber cylinder (6) is arranged in the sleeve (2), the rubber cylinder (6) and the sleeve (2) are coaxially arranged, a plurality of connecting columns (601) are fixedly arranged at the bottom of the rubber cylinder (6), a rotating column (8) penetrates through the connecting columns (601), the free ends of the connecting columns (601) are connected with the connecting plate (602), a first through hole (202) is formed in the center of the sleeve (2), a second through hole (605) is formed in the center of the connecting plate (602), a third through hole (801) is formed in the center of the rotating column (8), a fourth through hole (604) is formed in the center of the rubber cylinder (6), the screw rod is characterized in that the first through hole (202), the second through hole (605), the third through hole (801) and the fourth through hole (604) are all arranged concentrically, a hollow screw rod (7) penetrates through the first through hole (202), the second through hole (605), the third through hole (801) and the fourth through hole (604), the screw rod (7) is in threaded fit with the third through hole (801), a hollow connecting rod (4) is fixedly installed at one end of the screw rod (7), and a screw cap (3) is connected to the connecting rod (4) in a threaded mode.

2. A device for plugging a protection tube for electric power cables, according to claim 1, characterized in that: the fixed screw thread strip (803) that is equipped with on the outer wall of rotation post (8), screw thread strip (803) offset with the inner wall of rubber cylinder (6), a plurality of fifth through-holes (802) have been seted up on rotation post (8), in fifth through-hole (802) is worn to locate by spliced pole (601), a plurality of sixth through-holes (606) have been seted up on connecting plate (602), the free end of spliced pole (601) is fixed in sixth through-hole (606).

3. A device for plugging a protection tube for electric power cables, according to claim 2, characterized in that: the one end fixed mounting that first through-hole (202) was worn out in lead screw (7) has solid fixed ring (401), connecting rod (4) fixed mounting lies in solid fixed ring (401) back, the external screw thread has been seted up on connecting rod (4), be equipped with the internal thread that matches with the external screw thread on spiral cap (3) inner wall.

4. A device for plugging a protection tube for electric power cables, according to claim 3, characterized in that: both ends of the screw cap (3) are open, and the section of the screw cap (3) along the axis is conical.

5. A device for plugging a protection tube for electric power cables, according to claim 4, characterized in that: the pipe is characterized in that a first threaded hole (201) is formed in the sleeve (2), a second threaded hole is formed in the pipe body (1), the first threaded hole (201) is communicated with the second threaded hole, and a bolt (5) is screwed in the first threaded hole (201).