Auxiliary device for replacing and adjusting catenary carrier cable base
By designing an auxiliary device that includes a bracket and a pry bar, the problems of high manpower requirements and slippage risk in the replacement and adjustment of the catenary support base of the overhead contact line were solved, achieving efficient and safe maintenance and replacement by a single person.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-10
AI Technical Summary
In existing technologies, the replacement and adjustment of the catenary support cable base requires high strength from the operators and poses a risk of slippage in curved sections. Alternatively, the utilization rate of the catenary track maintenance vehicle is low and it is difficult to dispatch the vehicle.
An auxiliary device including a bracket and a pry bar was designed. The bracket connects to the pry bar in an "L" shape, and a groove is formed inside the hook. The pry bar includes a handle and a connecting rod, which are fixed to the flat arm of the contact wire by a clamp. The pry bar fulcrum is firm, and a single person can easily lift the catenary cable for inspection and replacement.
It enables a single person to easily complete the inspection and replacement of the catenary base, improving work safety and efficiency, solving the inspection problem in curved sections, and has a simple structure that is easy to carry.
Smart Images

Figure CN223982423U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of auxiliary devices for replacing catenary cable bases, and in particular to an auxiliary device for replacing and adjusting catenary cable bases in contact networks. Background Technology
[0002] Currently, there are two main procedures for replacing catenary cable bases and adjusting catenary cable positions during overhead contact line maintenance: One method, on straight sections, involves personnel standing on top of the ladder and using their shoulders to lift the catenary cable, or lying prone on the overhead contact arm and using their forearms to lift the cable from its base for replacement or adjustment. This method requires significant strength from the workers and is unsuitable for use on curves or other locations with high tension due to the risk of cable slippage. The other method uses an overhead contact line maintenance vehicle, which uses a jack to lift the catenary cable using the platform's lifting force. This method is simpler to operate, but the utilization rate of the overhead contact line maintenance vehicle is low due to various conditions, and dispatching the vehicle is difficult. Utility Model Content
[0003] To solve the above-mentioned technical problems, this application provides an auxiliary device for replacing and adjusting the catenary support base of the overhead contact line. This utility model is achieved through the following technical solution:
[0004] An auxiliary device for replacing and adjusting the base of a catenary cable includes a bracket connected to a pry bar. The pry bar is L-shaped and includes a crossbar on the bracket. Both ends of the crossbar are connected to an integral hook. The hook includes a vertical part and an arc-shaped hook portion. A groove is formed inside the hook portion. The vertical part is integrally connected to the crossbar and perpendicular to the crossbar. The vertical part is inclined and the angle between the vertical part and the horizontal plane is 45°-70°.
[0005] The pry bar includes an integrally connected handle and a connecting rod, with an obtuse angle between the handle and the connecting rod. The crossbar is rigidly connected to the top inner side of the connecting rod, and one end of a support rod is rigidly connected to the middle of the crossbar. The other end of the support rod is rigidly connected to the handle.
[0006] A clamp is provided at the connection between the handle and the connecting rod, and the clamp is rigidly connected to a half-ring-shaped sleeve.
[0007] As a preferred embodiment, the included angle between the handle and the connecting rod is 95°-105°.
[0008] As a preferred embodiment, the clamp includes two connecting ears, which are connected by bolts.
[0009] As a preferred embodiment, the bracket is made of steel bars with a diameter of 10mm-18mm.
[0010] As a preferred embodiment, the pry bar is made of steel pipe, and the handle of the pry bar is 80cm-150cm long.
[0011] As a preferred embodiment, the connecting rod is 6cm-15cm long.
[0012] As a preferred embodiment, the angle between the sleeve and the handle is 110°-150°.
[0013] Compared with existing technologies, the advantages of this invention are: a single person can easily pry up the catenary cable to complete the inspection, replacement, and adjustment of the catenary cable base, greatly saving working time and improving operational safety. This auxiliary device effectively improves the efficiency of catenary cable base inspection, saving operators time and effort, allowing for flexible movements, and solving the technical problem of not being able to inspect the catenary cable base in curved sections. Furthermore, the device has a simple and ingenious structure and is easy to carry. Attached Figure Description
[0014] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:
[0015] Figure 1 This is a schematic diagram of the three-dimensional connection structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the clamp of this utility model;
[0017] Figure 3 This is a front view structural diagram of the utility model in use. Detailed Implementation
[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments:
[0019] An auxiliary device for replacing and adjusting the base of a catenary cable of a contact network includes a bracket 1. The bracket 1 is connected to a pry bar 2, which is L-shaped. The bracket 1 includes a crossbar 11, and each end of the crossbar 11 is connected to a hook 12 integrally connected to the crossbar 11. The hook 12 includes a vertical part 121 and an arc-shaped hook part 122. A groove 13 is formed in the hook part 122. This hook-shaped groove 13 has greater bending resistance and can firmly hold the catenary cable.
[0020] The vertical part 121 is integrally connected to the horizontal bar 11 and is perpendicular to the horizontal bar 11. The vertical part 121 is inclined and the angle between the vertical part 121 and the horizontal plane is 45°-70°.
[0021] The pry bar 2 includes an integrally connected handle bar 21 and connecting rod 22. The included angle between the handle bar 21 and connecting rod 22 is an obtuse angle. The crossbar 11 is rigidly connected to the top inner side of the connecting rod 22. One end of a support rod 3 is rigidly connected to the middle of the crossbar 11, and the other end of the support rod 3 is rigidly connected to the handle bar 21.
[0022] A clamp 4 is provided at the connection between the handle 21 and the connecting rod 22. The clamp 4 is rigidly connected to a semi-circular sleeve 5, and the sleeve 5 is inclined.
[0023] Furthermore, the included angle between the handle 21 and the connecting rod 22 is 95°-105°.
[0024] Furthermore, the clamp 4 includes two connecting ears 41, which are connected by bolts 42.
[0025] Furthermore, the bracket 1 is made of steel bars with a diameter of 10mm-18mm.
[0026] Furthermore, the pry bar 2 is made of steel pipe, and the handle 21 of the pry bar 2 is 80cm-150cm long.
[0027] Furthermore, the connecting rod 22 is 6cm-15cm long.
[0028] Furthermore, the angle between the sleeve 5 and the handle 21 is 110°-150°.
[0029] When using the catenary support cable base replacement and adjustment auxiliary device, such as... Figure 3 As shown, the catenary is placed in the slot 13 so that the bracket 1 can hold the catenary. The clamp 5 is clamped on the flat bracket 14 of the contact wire. The clamp 5 makes the fulcrum of the pry bar 2 firm and reliable. When the construction worker presses down the handle 21, the bracket 1 lifts the catenary 15. At this time, the maintenance, replacement and adjustment of the catenary 15 base 16 can be completed.
[0030] The specific implementation of this utility model has been described in detail above, but it is only an example. This utility model is not limited to the specific implementation cases described above, and equivalent modifications to this utility model are also within the protection scope of this utility model.
Claims
1. A catenary cable support base replacement adjustment auxiliary device, characterized in that, The utility model provides a kind of pry bar, including bracket (1), the bracket (1) is connected pry bar (2), the pry bar (2) is ''L'' shape, the bracket (1) includes crossbar (11), the both ends of the crossbar (11) are respectively connected with the bracket (1) and the crossbar (11) integrally connected one and is integrally connected, the bracket (12) includes vertical portion (121) and hook portion (122) bent into arc, the hook portion (122) is formed in bracket slot (13), the vertical portion (121) is integrally connected with the crossbar (11) and is perpendicular to the crossbar (11), the vertical portion (121) is obliquely arranged, the vertical portion (121) and horizontal plane angle is 45 °-70 °; The pry bar (2) includes integrally connected handle bar (21), connecting rod (22), the included angle between handle bar (21), connecting rod (22) is obtuse, the crossbar (11) is rigidly connected in the top inner side of connecting rod (22), the middle of the crossbar (11) is rigidly connected with one end of support rod (3), the other end of the support rod (3) is rigidly connected on handle bar (21); Handle bar (21), connecting rod (22) connection is equipped with a clamp (4), the clamp (4) is rigidly connected with half annular sleeve (5), the sleeve (5) is obliquely arranged.
2. The pantograph line post base replacement adjustment auxiliary device according to claim 1, characterized in that, The included angle between handle bar (21), connecting rod (22) is 95 °-105 °.
3. The catenary cable support base replacement adjustment auxiliary device according to claim 1, characterized in that, The clamp (4) includes two connecting ears (41), and the two connecting ears (41) are connected by bolt (42).
4. The catenary cable support base replacement adjustment auxiliary device according to claim 1, characterized in that, The material of the bracket (1) is steel bar, and the diameter is 10mm-18mm.
5. The catenary cable support base replacement adjustment auxiliary device according to claim 1, characterized in that, The material of the pry bar (2) is steel pipe, and the length of the handle bar (21) of the pry bar (2) is 80cm-150cm.
6. The catenary cable socket replacement adjustment aid of claim 1, wherein, The length of the connecting rod (22) is 6cm-15cm.
7. The catenary cable socket replacement adjustment aid of claim 1, wherein, The included angle between the sleeve (5) and the handle bar (21) is 110 °-150 °.