Cable threading steering protection device for power pipeline inspection well
By installing the cable steering protection device of the support unit and the reversing unit in the inspection well, the problems of wear and manual pulling resistance of the cable during steering are solved, and the cable outer skin protection and construction efficiency are improved.
Patent Information
- Application Number
- CN202510872898.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-27
- Publication Date
- 2025-09-02
AI Technical Summary
During the cable laying process, the cable is prone to wear due to friction when steering between 90°-180°, and the inner diameter of the traditional inspection well is limited, and the manual pulling resistance is large, resulting in cable damage and low manpower efficiency.
A power pipe inspection well cable wire steering protection device is designed, including a support unit and a reversing unit. The support unit is installed in the inspection well. The reversing unit provides a cable steering function through the support unit to reduce friction and reduce manual pulling resistance.
Effectively protect the cable sheath from being damaged, reduce manual labor intensity, improve construction efficiency, adapt to narrow inspection wells of different sizes, and reduce operating personnel configuration.
Smart Images
Figure CN120582017A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of power pipeline inspection and maintenance, in particular to a power pipeline inspection well cable threading and steering protection device. Background Art
[0002] With the development of urban construction, there are more and more underground power pipeline projects. However, in the actual cable laying process, it is very common for cables to be scratched, difficult to thread, and labor efficiency problems. Specifically: (1) When the cable turns 90°-180°, the cable bending diameter change is less than the specification requirement (such as the bending radius of the cross-linked cable usually needs to be ≥15D, D is the cable diameter), which will cause local stress concentration. In addition, the turning points of the inspection well are mostly concrete right-angle walls or metal brackets with high surface friction coefficients. When pulling the cable, it is easy to scratch it, and the cable surface is prone to wear and even damage; (2) The inner diameter of the traditional inspection well is usually between 1.2-1.5m. During operation, the movement of personnel is limited, and large traction equipment cannot be used. The cable can only be pulled manually. The resistance is large during manual pulling, and the cable is easily damaged due to uneven pulling force. Summary of the Invention
[0003] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a cable threading and steering protection device for a power pipeline inspection well, which can adapt to narrow inspection wells of different sizes and is easy to carry. When steering, the steering wheel can continuously provide cable steering function, effectively protecting the cable sheath from damage and improving efficiency; reducing the number of operating personnel and saving human resources.
[0004] The technical solution adopted by the present invention to solve its technical problem is: A cable threading and steering protection device for an electric power pipeline inspection well comprises a support unit and a reversing unit. The support unit is placed inside the inspection well, the reversing unit is connected to the support unit, and the reversing unit is installed inside the inspection well through the support unit.
[0005] Compared with the prior art, the present invention has the following beneficial effects: The present invention installs the steering unit inside the inspection well through the support unit, providing a steering function between 90° and 180° for the cable inside the inspection well, reducing the friction between the cable and the support frame when turning, protecting the cable sheath from damage, and can reduce the resistance during manual pulling, reduce the labor intensity of manual pulling, and improve construction efficiency.
[0006] Preferably, a further technical solution of the present invention is: Preferably, the support unit includes a support frame, both ends of the support frame are respectively threaded with top screws, and the support frame is installed between the inner walls of the inspection well through the top screws; the reversing unit includes a reversing wheel, and the reversing wheel is placed on the support frame.
[0007] Preferably, the support frame includes two support rods, each support rod is provided with a fixing plate at both ends, and each fixing plate is threadedly connected with a top screw; the reversing wheel is placed between the two support rods and is rotatably connected to the two rods.
[0008] Preferably, each support rod includes a cross bar 1 and a cross bar 2, and the cross bar 1 is provided with a plurality of positioning holes 1 at intervals, and the cross bar 2 is provided with positioning holes 2 at intervals, and the cross bar 1 and the cross bar 2 are connected by a bolt assembly passing through the positioning holes 1 and the positioning holes 2; the cross bar 1 is provided with a mounting hole 1 in the middle of two adjacent positioning holes 1, and the cross bar 2 is provided with a mounting hole 2 in the middle of two adjacent positioning holes 2, and the two ends of the central axis of the reversing wheel respectively pass through the mounting hole 1 and the mounting hole 2 on the corresponding side in turn, and are locked by nuts.
[0009] Preferably, the surface of the reversing wheel is provided with an arc-shaped concave surface. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of this application, and do not constitute a limitation of the present invention. In the drawings: Figure 1 is a schematic structural diagram of an embodiment of the present invention; Figure 2 yes Figure 1 Side view of Figure 3 yes Figure 2 A top view of Explanation of the accompanying reference numerals: 1. Support rod; 101. Cross bar 1; 102. Cross bar 2; 2. Fixing plate; 3. Top screw; 4. Reversing wheel; 5. Positioning hole 1; 6. Positioning hole 2; 7. Mounting hole 1; 8. Mounting hole 2; 9. Center axis. DETAILED DESCRIPTION
[0011] The present invention will be further described below in conjunction with specific embodiments. The purpose is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.
[0012] like Figures 1 to 3 As shown, a cable threading and steering protection device for a power pipeline inspection well is composed of a support unit and a reversing unit. The reversing unit is connected to the support unit, and the reversing unit is installed inside the inspection well through the support unit. The support unit is used to support the reversing unit, and the reversing unit makes the cable steer.
[0013] Specifically, the support unit includes a support frame, which is composed of two support rods 1. The two support rods 1 are arranged in parallel. A fixing plate 2 is welded at both ends of the support rod 1. A through hole is opened in the center of the fixing plate 2. A fixing nut is welded at the position corresponding to the through hole on the outside of the fixing plate 2. The top screw 3 passes through the through hole and is threadedly connected to the fixing nut. After the support plate is placed inside the inspection well, the top screws 3 at both ends of the support rod 1 are screwed so that the ends of the top screws 3 abut against the inner wall of the inspection well, so as to fix the support rod 1 inside the inspection well.
[0014] The reversing unit is a reversing wheel 4 , the surface of which is an arc-shaped concave surface. The reversing wheel 4 is installed between the two support rods 1 so that the reversing wheel 4 rotates between the two support rods 1 .
[0015] In this embodiment, each support rod 1 is composed of a cross bar 101 and a cross bar 102, etc. The cross bar 101 and the cross bar 102 are respectively made of L-shaped keels. The cross bar 101 is provided with a plurality of positioning holes 5 at intervals along its length direction, and the cross bar 102 is provided with a plurality of positioning holes 6 at intervals along its length direction. The hole spacing of the positioning holes 5 is equal to the hole spacing of the positioning holes 2 6. The cross bar 101 and the cross bar 2 102 are connected by a bolt assembly passing through the positioning holes 1 5 and the positioning holes 2 6, and the overall length of the support rod 1 can be adjusted by adjusting the arbitrary combination of different positioning holes 5 and different positioning holes 2 6.
[0016] Crossbar 101 has mounting holes 7 formed in the middle of two adjacent positioning holes 5, and crossbar 2 102 has mounting holes 8 formed in the middle of two adjacent positioning holes 6. Mounting holes 7 and 8 are arranged in correspondence with each other. Both ends of the central axis 9 of the reversing wheel 4 pass through the mounting holes 7 and 8 on the corresponding side in sequence and are locked by nuts.
[0017] When the above device is used in a specific application, positioning hole 1 5 and positioning hole 2 6 are selected according to the inner diameter of the inspection well, and crossbar 1 101 and crossbar 2 102 are fixed with a bolt assembly so that the total length of the support rod 1 formed by connecting crossbar 101 and crossbar 102 is slightly smaller than the inner diameter of the inspection well; after the two support rods 1 are assembled, the reversing wheel 4 is installed between the two support rods 1, and then the assembled device is placed horizontally inside the inspection well. The top screw 3 at the end of each support rod 1 is screwed separately so that the end of the top screw 3 is pressed against the inner wall of the inspection well, and the support rod 1 is fixed inside the inspection well, thus completing the installation of the device. When laying the cable, the cable can be easily reversed by passing it around the reversing wheel 4.
[0018] The device has a simple structure and is easy to carry. It can be installed in the inspection shaft of the power pipeline. When laying the cable, it can provide a steering function for the cable, which can effectively protect the cable sheath from damage during steering. The connection structure is simple and can adapt to narrow inspection shafts of different sizes, with a wider range of applications. It also reduces the resistance of workers in pulling the cables, reduces the labor intensity of manual pulling, and improves construction efficiency.
[0019] The above description is only a preferred embodiment of the present invention and does not limit the scope of the present invention. Any equivalent changes made by using the contents of the present invention description and the drawings are included in the scope of the present invention.
Claims
1. A cable threading and steering protection device for a power pipeline inspection well, characterized by: The utility model comprises a supporting unit and a reversing unit. The supporting unit is placed inside the inspection well. The reversing unit is connected to the supporting unit. The reversing unit is installed inside the inspection well through the supporting unit.
2. The cable threading and steering protection device for a power pipeline inspection well according to claim 1 is characterized in that: The support unit includes a support frame, both ends of the support frame are respectively threaded with top screws, and the support frame is installed between the inner walls of the inspection well through the top screws; the reversing unit includes a reversing wheel, and the reversing wheel is placed on the support frame.
3. The cable threading and steering protection device for a power pipeline inspection well according to claim 2 is characterized in that: The support frame includes two support rods, each support rod is provided with a fixing plate at both ends, and each fixing plate is threadedly connected with a top screw; the reversing wheel is placed between the two support rods and is rotatably connected to the two rods.
4. The cable threading and steering protection device for a power pipeline inspection well according to claim 3 is characterized in that: Each support rod includes a cross bar 1 and a cross bar 2. The cross bar 1 is provided with a plurality of positioning holes 1 at intervals, and the cross bar 2 is provided with positioning holes 2 at intervals. The cross bar 1 and the cross bar 2 are connected by a bolt assembly passing through the positioning holes 1 and the positioning holes 2. The cross bar 1 is provided with a mounting hole 1 in the middle of two adjacent positioning holes 1, and the cross bar 2 is provided with a mounting hole 2 in the middle of two adjacent positioning holes 2. Both ends of the central axis of the reversing wheel are respectively passed through the mounting hole 1 and the mounting hole 2 on the corresponding side and are locked by nuts.
5. The cable threading and steering protection device for a power pipeline inspection well according to claim 2 is characterized in that: The surface of the reversing wheel is provided with an arc-shaped concave surface.