Cable pipe penetrating tool convenient to operate in narrow space

Abstract

The invention belongs to the technical field of pipeline cable installation tools, and particularly relates to a cable pipe penetrating tool convenient to operate in a narrow space. Comprising a traction driving part, an end connecting part and a plurality of supporting and protecting parts, and the traction driving part is connected with the end connecting part through a traction rope; a driving roller assembly and a stabilizing roller assembly are arranged on the traction driving part, the driving roller assembly is used for driving the traction driving part to move in the pipeline, and the stabilizing roller assembly is used for limiting, guiding and stabilizing the traction driving part; the end connecting part is used for locking and fixedly connecting the end part of the cable to be penetrated; the support protection part is used for supporting and protecting a cable to be subjected to pipe penetration; the cable pipe penetrating device can flexibly penetrate through a narrow space and a bent pipeline, protects and guides the cable in the pipe penetrating process, and can effectively reduce friction damage between the cable and the pipe wall.

Description

Technical Field

[0001] This invention belongs to the technical field of pipeline and cable installation tools, specifically relating to cable threading tools that facilitate operation in confined spaces. Background Technology

[0002] Cable laying is a crucial step in power, communication, and building installation projects. In cable trenches, buried conduits, and wiring operations within buildings, tools such as cable pullers, cable guides, or wire ropes are widely used to guide cables through pre-installed conduits. Currently, most traditional cable pullers on the market are one-piece long rod structures. Their overall length is relatively long and rigid. When working in confined spaces such as cable wells, corners, or gaps in existing equipment, the tools themselves are difficult to bend. Especially at pipe bends or in complex pipelines with multiple bends, the long rod-shaped tools are prone to jamming due to their small bending radius, preventing further progress and sometimes even requiring the demolition of pipes or walls to retrieve the tool, severely reducing construction efficiency.

[0003] Secondly, during the process of cable installation, the outer sheath of the cable will come into direct contact with the inner wall of the pipe. As the distance of installation increases, the contact area and positive pressure between the cable and the pipe wall increase, resulting in a sharp increase in frictional resistance, which makes installation more difficult. Moreover, long-term friction can easily cause wear and scratches on the outer sheath of the cable, or even damage to the insulation layer, posing a hidden danger to the safe operation of the cable.

[0004] For example, invention patent application number 202511671345.4 discloses a cable threading tool for easy operation in confined spaces, including a cable installation cylinder, a sealing cylinder, and a guide cylinder. The cable installation cylinder is located at one end of the sealing cylinder, and the guide cylinder is installed at the other end of the sealing cylinder. The cable installation cylinder is used to clamp the cable end, and the guide cylinder is used for guiding and breaking the ground. It is suitable for short-distance operations in confined spaces such as underground pipe wells, pre-embedded pipes in walls, and areas with dense equipment. Through the integrated structure of clamping, guiding, and breaking the ground, it solves the problems of obstructed operation, unstable clamping, and obstruction by foreign objects in traditional tools. However, its integrated long rod structure is not suitable for operation in curved pipes, and it cannot solve the problem of friction between the cable and the pipe wall during long-distance threading. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a cable conduit tool that is easy to operate in confined spaces. It can move flexibly in confined spaces and curved pipes, and protect and guide the cable during the conduit process, effectively reducing friction damage between the cable and the pipe wall.

[0006] The objective of this invention is achieved as follows: a cable threading tool that is easy to operate in confined spaces, comprising a traction drive unit, an end connection unit, and multiple support and protection units, wherein the traction drive unit is connected to the end connection unit via a traction rope; The traction drive unit is provided with a drive roller assembly and a stabilizing roller assembly. The drive roller assembly is used to drive the traction drive unit to move inside the pipeline. The stabilizing roller assembly is used to limit, guide and stabilize the traction drive unit by pressing against the inner wall of the pipeline with the stabilizing rollers provided thereon. The end connection part is used to lock and fix the end of the cable to be inserted into the conduit through the locking and fixing components provided thereon; The support and protection part is used to wrap around the cable to be inserted into the pipe and to support and protect the cable through multiple universal ball bearings provided thereon, so as to avoid long-distance frictional contact between the cable and the pipe.

[0007] Furthermore, the traction drive unit also includes a support main board, and the drive roller assembly includes a support side plate disposed at the bottom of the support main board. A first rotating shaft is rotatably disposed between the two support side plates, and a drive roller is disposed on the first rotating shaft. Two drive rollers are disposed on one first rotating shaft, and one first rotating shaft is disposed on the front and rear sides below the support main board, that is, the entire support main board is supported by four wheels.

[0008] Furthermore, the drive roller assembly also includes a drive motor mounted on the support main board, the drive motor being connected to a drive bevel gear, and a driven bevel gear being mounted on the first rotating shaft; a second rotating shaft is rotatably mounted on the support main board, with an upper bevel gear at one end and a lower bevel gear at the other end; the drive bevel gear meshes with the upper bevel gear, and the lower bevel gear meshes with the driven bevel gear; the operation of the drive motor can drive the movement of the traction drive unit, enabling it to move automatically within the pipe, thereby dragging the cable to be inserted through the end connection part.

[0009] Furthermore, the stabilizing roller assembly includes a support block disposed on the support main board, a guide sleeve disposed obliquely on the support block, a guide rod slidably connected to the guide sleeve, a roller frame plate connected to the end of the guide rod, and the stabilizing roller rotatably disposed on the roller frame plate; the cross-section of the support block is a right trapezoid, and the guide sleeve is disposed on its oblique surface.

[0010] Furthermore, the traction drive unit also includes a housing disposed on the support main board, and the guide sleeve passes through the housing and is fixedly connected to it.

[0011] Furthermore, one of the stabilizing roller assemblies includes two support blocks, and a connecting plate is fixedly connected between the two guide slides in the stabilizing roller assembly. One of the stabilizing roller assemblies is respectively arranged on the left and right sides of the traction drive unit.

[0012] Furthermore, an adjusting screw is rotatably connected to the connecting plate, the lower part of which passes through the housing and is threadedly connected to it; when the adjusting screw is rotated, its height position can be adjusted through its threaded connection with the housing, thereby driving the connecting plate to move together.

[0013] Furthermore, the end connection portion includes a connecting sleeve, and a supporting arc plate is provided at the bottom of the inner wall of the connecting sleeve. The locking and fixing assembly is disposed on the connecting sleeve. The traction drive portion is connected to the connecting sleeve through the traction rope.

[0014] Furthermore, the locking and fixing assembly includes a side plate disposed on the connecting sleeve, a pressure rod threadedly connected to the side plate, and the lower end of the pressure rod extending into the connecting sleeve and connected to the pressure plate.

[0015] Furthermore, the support and protection part includes a spiral connecting tape for wrapping around the cable to be threaded, the spiral connecting tape being provided with a connecting seat, and the universal ball bearings being connected to the connecting seat; the spiral connecting tape can be wrapped and connected to the cable to be threaded by adhesive or the like.

[0016] The beneficial effects of this invention are as follows: The cable threading tool of this invention, which is convenient for operation in confined spaces, consists of three parts: a traction drive unit, an end connection unit, and a support and protection unit. Multiple support and protection units can be installed on the cable to be threaded as needed. These units support and protect the cable by wrapping around it and using multiple universal ball bearings, preventing long-distance frictional contact between the cable and the conduit. The traction drive unit is equipped with a drive roller assembly and a stabilizing roller assembly. The drive roller assembly drives the traction drive unit to move within the conduit, while the stabilizing roller assembly... The stabilizing rollers on the upper part press against the inner wall of the pipe, pressing down on the traction drive unit, and cooperating with the drive roller assembly to achieve limiting guidance and stability; the end connection part is locked and fixed to the end of the cable to be inserted through the locking and fixing assembly on it; the traction drive unit is connected to the end connection part through the traction rope to achieve pulling of the cable to be inserted; the cable insertion tool of the present invention is easy to operate in confined spaces, can flexibly move in confined spaces and curved pipes, and protects and guides the cable during the insertion process, effectively reducing friction damage between the cable and the pipe wall. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the overall structure of a cable threading tool designed for operation in confined spaces.

[0019] Figure 2 A schematic diagram of the overall structure of the traction drive unit of a cable threading tool designed for operation in confined spaces.

[0020] Figure 3 A schematic diagram of the cable pulling tool after removing the housing, designed for operation in confined spaces.

[0021] Figure 4 A schematic diagram of the cable pulling tool after removing the housing, designed for operation in confined spaces.

[0022] Figure 5 A schematic diagram showing the connection between the traction drive unit and the end connection unit of a cable threading tool designed for operation in confined spaces.

[0023] Figure 6 A schematic diagram of the support and protection section for a cable conduit insertion tool designed for easy operation in confined spaces. Detailed Implementation

[0024] The present invention will now be further described with reference to the accompanying drawings.

[0025] It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] It should be noted that in the embodiments of the present invention, all directional indications (such as up-down-left-right-forward-backward...) are only used to explain the relative positional relationship and movement between the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0028] like Figure 1 As shown, the cable threading tool of the present invention, which is convenient for operation in confined spaces, includes a traction drive unit 1, an end connection unit 2, and multiple support and protection units 3. The traction drive unit 1 is connected to the end connection unit 2 via a traction rope 11. The traction drive unit 1 is provided with a drive roller assembly 6 and a stabilizing roller assembly 5. The drive roller assembly 6 is used to drive the traction drive unit 1 to move inside the pipe. The stabilizing roller assembly 5 is used to limit, guide and stabilize the traction drive unit 1 by pressing against the inner wall of the pipe with the stabilizing roller 16 provided thereon. The end connection part 2 is used to lock and fix the end of the cable 4 to be inserted into the conduit through the locking and fixing component 7 provided thereon. The support and protection part 3 is used to wrap around the cable 4 to be inserted into the pipe and to support and protect the cable 4 to be inserted into the pipe through a plurality of universal balls 9 provided thereon, so as to avoid long-distance frictional contact between the cable 4 and the pipe.

[0029] Furthermore, in one embodiment, such as Figure 2 As shown, the traction drive unit 1 further includes a support main board 13, and the drive roller assembly 6 includes a support side plate 15 disposed at the bottom of the support main board 13. A first rotating shaft is rotatably disposed between the two support side plates 15, and a drive roller 14 is disposed on the first rotating shaft. Two drive rollers 14 are disposed on one first rotating shaft. One first rotating shaft is disposed on the front and rear sides below the support main board 13, that is, the support main board 13 is supported by four wheels to ensure its stability when moving in the pipe. The drive rollers 14 and the stabilizing rollers 16 are both rollers made of elastic materials such as rubber. The stabilizing rollers 16 press against the inner wall of the pipe from the left and right sides at an oblique height to ensure that the drive rollers 14 provide sufficient traction friction and stabilize and guide the traction drive unit 1.

[0030] Furthermore, in one embodiment, such as Figure 3 , 4As shown, the drive roller assembly 6 also includes a drive motor 17 mounted on the support main board 13. The drive motor 17 is connected to a drive bevel gear 18, and a driven bevel gear 20 is mounted on the first rotating shaft. A second rotating shaft is rotatably mounted on the support main board 13. An upper bevel gear 19 is mounted at one end of the second rotating shaft, and a lower bevel gear 27 is mounted at the other end. The drive bevel gear 18 meshes with the upper bevel gear 19, and the lower bevel gear 27 meshes with the driven bevel gear 20. The operation of the drive motor 17 can drive the movement of the traction drive unit 1, enabling it to move automatically within the pipe, thereby dragging the cable 4 to be inserted through the end connection part 2. Specifically, when the drive motor 17 is working, the drive bevel gear 18 drives the upper bevel gear 19 to rotate. The upper bevel gear 19 drives the lower bevel gear 27 to rotate through the second rotating shaft, and the lower bevel gear 27 drives the first rotating shaft to rotate through the driven bevel gear 20, thereby driving the rotation of the drive roller 14.

[0031] Furthermore, in one embodiment, such as Figure 3 As shown, the stabilizing roller assembly 5 includes a support block 23 disposed on the support main plate 13. A guide sleeve 24 is inclinedly disposed on the support block 23. A guide slide rod 26 is slidably connected to the guide sleeve 24. A roller frame plate 25 is connected to the end of the guide slide rod 26. The stabilizing roller 16 is rotatably disposed on the roller frame plate 25. The cross-section of the support block 23 is a right trapezoid. The guide sleeve 24 is disposed on its inclined surface. Through the cooperation of the stabilizing roller assembly 5, which is inclined on the left and right sides respectively, the stabilizing roller 16 can press against the left and right sides above the inner wall of the pipe, thereby pressing the traction drive unit 1 into the pipe and ensuring its stable and reliable movement. The distance by which the guide slide rod 26 extends out of the guide sleeve 24 can be adjusted to adapt to pipes with different inner diameters.

[0032] Furthermore, in one embodiment, such as Figure 3 As shown, the traction drive unit 1 also includes a housing 12 disposed on the support main board 13, and the guide sleeve 24 passes through the housing 12 and is fixedly connected to it; the lower parts of the support block 23 and the guide sleeve 24 are both located inside the housing 12, which provides protection for them and provides more stable support for the guide sleeve 24.

[0033] Furthermore, in one embodiment, such as Figure 3As shown, one of the stabilizing roller assemblies 5 includes two support blocks 23. A connecting plate 22 is fixedly connected between the two guide slides 26 in one of the stabilizing roller assemblies 5. One stabilizing roller assembly 5 is respectively arranged on the left and right sides of the traction drive unit 1. The two guide slides 26 in one of the stabilizing roller assemblies 5 can be adjusted through the connecting plate 22, which is convenient and quick to operate.

[0034] Furthermore, in one embodiment, such as Figure 3 As shown, an adjusting screw 21 is rotatably connected to the connecting plate 22. The lower part of the adjusting screw 21 passes through the housing 12 and is threadedly connected to it. When the adjusting screw 21 is rotated, its height position can be adjusted through its threaded connection with the housing 12, thereby driving the connecting plate 22 to move together. The connecting plate 22 then drives the two guide slide rods 26 to adjust their distance from extending out of the guide sleeve 24, and finally adjusts the stabilizing roller 16 to press against the inner wall of pipes with different inner diameters.

[0035] Furthermore, in one embodiment, such as Figure 5 As shown, the end connection part 2 includes a connecting sleeve 8, and a supporting arc plate 30 is provided at the bottom of the inner wall of the connecting sleeve 8. The locking and fixing assembly 7 is provided on the connecting sleeve 8. The traction drive part 1 is connected to the connecting sleeve 8 through the traction rope 11. The end of the cable 4 to be threaded into the conduit extends into the connecting sleeve 8 and is supported by the supporting arc plate 30. The end of the cable 4 to be threaded into the conduit can be pressed and fixed by the locking and fixing assembly 7.

[0036] Furthermore, in one embodiment, such as Figure 5 As shown, the locking and fixing assembly 7 includes a side plate 31 disposed on the connecting sleeve 8. A pressure rod 28 is threadedly connected to the side plate 31. The lower end of the pressure rod 28 extends into the connecting sleeve 8 and is connected to a pressure plate 29. The pressure plate 29 can be used to press and fix the end of the cable 4 to be threaded through the conduit by rotating the pressure rod 28.

[0037] Furthermore, in one embodiment, such as Figure 6 As shown, the support and protection part 3 includes a winding connecting tape 10 for winding around the cable 4 to be threaded through the conduit. The winding connecting tape 10 is provided with a connecting seat 32, and the universal ball bearings 9 are connected to the connecting seat 32. The winding connecting tape 10 can be wound and connected to the cable 4 to be threaded through the conduit by adhesive or the like. A support and protection part 3 can be provided on the cable 4 to be threaded through the conduit at regular intervals, so that the cable 4 to be threaded through the universal ball bearings 9 provided thereon can support and protect the cable 4 to be threaded through the conduit, and avoid long-distance frictional contact between the cable and the conduit.

[0038] In summary, the cable threading tool of the present invention, which is convenient for operation in confined spaces, consists of three parts: a traction drive unit 1, an end connection unit 2, and a support and protection unit 3. Multiple support and protection units 3 can be provided on the cable 4 to be threaded, as needed. These units support and protect the cable 4 by wrapping around it and using multiple universal ball bearings 9, preventing long-distance frictional contact between the cable and the conduit. The traction drive unit 1 is equipped with a drive roller assembly 6 and a stabilizing roller assembly 5. The drive roller assembly 6 drives the traction drive unit 1 to move within the conduit, while the stabilizing roller assembly 5 is equipped with... The stabilizing roller 16 presses against the inner wall of the pipe, pressing down on the traction drive unit 1, and cooperating with the drive roller assembly 6 to achieve limiting guidance and stability; the end connection part 2 is locked and fixed to the end of the cable 4 to be inserted through the locking and fixing assembly 7 provided thereon; the traction drive unit 1 is connected to the end connection part 2 through the traction rope 11 to achieve pulling of the cable 4 to be inserted through the pipe; the cable insertion tool of the present invention is convenient for operation in narrow spaces, can flexibly pass through narrow spaces and curved pipes, and protects and guides the cable during the insertion process, effectively reducing friction damage between the cable and the pipe wall.

[0039] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A cable threading tool for easy operation in confined spaces, characterized in that, It includes a traction drive unit, an end connection unit, and multiple support and protection units, wherein the traction drive unit is connected to the end connection unit via a traction rope; The traction drive unit is provided with a drive roller assembly and a stabilizing roller assembly. The drive roller assembly is used to drive the traction drive unit to move inside the pipeline. The stabilizing roller assembly is used to limit, guide and stabilize the traction drive unit by pressing against the inner wall of the pipeline with the stabilizing rollers provided thereon. The end connection part is used to lock and fix the end of the cable to be inserted into the conduit through the locking and fixing components provided thereon; The support and protection part is used to wrap around the cable to be threaded through the conduit and to support and protect the cable through multiple universal ball bearings provided thereon.

2. The cable threading tool for easy operation in confined spaces as described in claim 1, characterized in that, The traction drive unit also includes a support main board, and the drive roller assembly includes a support side plate disposed at the bottom of the support main board. A first rotating shaft is rotatably disposed between the two support side plates, and a drive roller is disposed on the first rotating shaft.

3. The cable threading tool for easy operation in confined spaces as described in claim 2, characterized in that, The drive roller assembly also includes a drive motor mounted on the support main board, the drive motor being connected to a drive bevel gear, and a driven bevel gear being mounted on the first rotating shaft; a second rotating shaft is rotatably mounted on the support main board, with an upper bevel gear at one end and a lower bevel gear at the other end; the drive bevel gear meshes with the upper bevel gear, and the lower bevel gear meshes with the driven bevel gear.

4. The cable threading tool for easy operation in confined spaces as described in claim 2, characterized in that, The stabilizing roller assembly includes a support block disposed on the support main board, a guide sleeve disposed at an inclination on the support block, a guide rod slidably connected to the guide sleeve, a roller frame plate connected to the end of the guide rod, and the stabilizing roller rotatably disposed on the roller frame plate.

5. The cable threading tool for easy operation in confined spaces as described in claim 4, characterized in that, The traction drive unit also includes a housing disposed on the support main board, and the guide sleeve passes through the housing and is fixedly connected to it.

6. The cable threading tool for easy operation in confined spaces as described in claim 5, characterized in that, One of the stabilizing roller assemblies includes two of the support blocks, and a connecting plate is fixedly connected between the two guide rails in the stabilizing roller assembly.

7. The cable threading tool for easy operation in confined spaces as described in claim 6, characterized in that, An adjusting screw is rotatably connected to the connecting plate, and the lower part of the adjusting screw passes through the housing and is threadedly connected to it.

8. The cable threading tool for operation in confined spaces as described in claim 1, characterized in that, The end connection includes a connecting sleeve, and a supporting arc plate is provided at the bottom of the inner wall of the connecting sleeve. The locking and fixing assembly is provided on the connecting sleeve.

9. The cable threading tool for easy operation in confined spaces as described in claim 8, characterized in that, The locking and fixing assembly includes a side plate disposed on the connecting sleeve, a pressure rod threadedly connected to the side plate, and the lower end of the pressure rod extending into the connecting sleeve and connected to the pressure plate.

10. The cable threading tool for easy operation in confined spaces as described in claim 1, characterized in that, The support and protection part includes a spiral connecting strip for winding around the cable to be threaded, and a connecting seat is provided on the spiral connecting strip, and the universal ball is connected to the connecting seat.

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