A catenary positioner replacement tool

Abstract

The utility model relates to electrified railway contact net maintenance tool technical field, especially in kind of contact net position ware replacement tool, include: main body support pipe, first hinged seat, second hinged seat, telescopic adjusting lever, third hinged seat and vertical adjusting screw rod, be provided with the connecting ring buckle on main body support pipe, first hinged seat and second hinged seat fixedly arranged on main body support pipe, telescopic adjusting lever one end and first hinged seat articulate, third hinged seat and telescopic adjusting lever other end articulate, its inside fixed mounting has internal thread sleeve, vertical adjusting screw rod passes through third hinged seat and is with internal thread sleeve screw thread cooperation, its upper end and second hinged seat articulate, lower end fixedly connected with contact line clamp, first hinged seat, second hinged seat, third hinged seat, telescopic adjusting lever and vertical adjusting screw rod constitute a deformable triangle frame together, the utility model provides a kind of contact net position ware replacement tool that can carry out accurate adjustment to contact line space pose.

Description

Technical Field

[0001] This utility model relates to the technical field of tools for the inspection and maintenance of overhead contact lines of electrified railways, and in particular to a tool for replacing overhead contact line positioners. Background Technology

[0002] In electrified railway systems, the overhead contact line positioner is a key component for fixing the position of the contact wire, and it requires regular maintenance or replacement. Because the overhead contact line is constantly energized and under high tension, the tension of the contact wire must be unloaded before replacing the positioner, and then restored after the replacement is completed.

[0003] Currently, traditional replacement methods often involve manual operation using general-purpose tensioning tools such as large ropes and hand-operated levers in conjunction with twisting devices. This approach has the following drawbacks: Poor adjustment precision: General-purpose tools struggle to make precise fine-tuning of the contact wire in the horizontal and vertical directions, making it difficult to accurately place the positioning clamp into the groove during installation, resulting in low work efficiency; Low operational safety: The complex tool combinations and numerous connection points make it prone to shaking or slippage during tension conversion, posing safety hazards; Limited functionality: Only simple tensioning functions are possible, without the ability to coordinate and controllably adjust the spatial position and orientation of the contact wire. Utility Model Content

[0004] The problem this invention aims to solve is to provide a contact wire positioner replacement tool that can coordinately and controllably adjust the spatial orientation of the contact wire, addressing the above-mentioned shortcomings.

[0005] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is: a tool for replacing a contact wire positioner, comprising: The main support tube is provided with a connecting ring for connecting to an external fixing point; The first hinge seat and the second hinge seat are respectively fixedly mounted on the main support tube; A telescopic adjusting rod, one end of which is hinged to the first hinge seat; The third hinge seat is hinged to the end of the telescopic adjustment rod away from the first hinge seat, and an internal threaded sleeve is fixedly installed inside the third hinge seat; A vertical adjusting screw passes through the third hinge seat and is threaded into the internal thread sleeve. The upper end of the vertical adjusting screw is hinged to the second hinge seat, and the lower end is detachably connected to a contact wire clamp for holding the contact wire.

[0006] In one embodiment, the telescopic adjustment rod is provided with a ratchet telescopic handle, and the ratchet telescopic handle is equipped with a reversing mechanism for controlling the telescopic adjustment rod to extend or retract.

[0007] In one embodiment, the contact wire clamp is provided with a clamp locking handle for manually locking or unlocking the contact wire clamp.

[0008] In one embodiment, the clamping surface of the contact wire clamp is provided with an anti-slip structure.

[0009] In one embodiment, the vertical adjusting screw is connected to the second hinge seat via a ball joint or universal joint.

[0010] In one embodiment, the telescopic adjusting rod is connected to both the first hinge seat and the third hinge seat via hinges or ball joints.

[0011] In one embodiment, the detachable connection is a threaded connection or a flange connection.

[0012] In one embodiment, the main support tube and the telescopic adjustment rod are made of lightweight, high-strength materials.

[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: By combining horizontal extension and vertical screw transmission through a deformable triangular frame consisting of a first hinge seat, a second hinge seat, a third hinge seat, a telescopic adjustment rod, and a vertical adjustment screw, the tool possesses the ability to perform independent and coordinated fine-tuning in both horizontal and vertical directions. This structure enables precise and controllable adjustment of the spatial orientation of the contact wire, thereby effectively ensuring the installation accuracy and operational efficiency of the positioning clamp. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a side view of a contact wire positioner replacement tool according to one embodiment of the present invention. Figure 2 This is a perspective view of the overall structure of a contact wire positioner replacement tool according to one embodiment of the present invention. Reference numerals in the attached drawings: 1: Main support tube; 2: First hinge seat; 3: Second hinge seat; 4: Vertical adjusting screw; 5: Third hinge seat; 6: Telescopic adjusting rod; 7: Contact line clamp; 8: Clamp locking handle; 9: Ratchet telescopic handle; 10: Connecting ring; 11: Reversing mechanism; 12: Internal threaded sleeve. Detailed Implementation

[0016] To facilitate understanding of this utility model, the following description will be provided in more comprehensive and detailed manner with reference to the accompanying drawings and preferred embodiments. However, the scope of protection of this utility model is not limited to the following specific embodiments.

[0017] Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the scope of protection of this invention.

[0018] Unless otherwise specified, all raw materials, reagents, instruments and equipment used in this invention can be purchased from the market or prepared by existing methods.

[0019] Please see Figure 1-2 One embodiment of the contact wire locator replacement tool mainly includes: a main support tube 1, one end of which is provided with a connecting ring 10 for connecting to an external fixed point. A first hinge seat 2 and a second hinge seat 3 are fixedly mounted on the main support tube 1. One end of a telescopic adjustment rod 6 is hinged to the first hinge seat 2, providing the tool with horizontal telescopic freedom. A third hinge seat 5 is hinged to the end of the telescopic adjustment rod 6 away from the first hinge seat 2, and an internal threaded sleeve 12 is fixedly installed inside the third hinge seat 5. A vertical adjustment screw 4 passes through the third hinge seat 5 and is threadedly engaged with the internal threaded sleeve 12. This threaded engagement structure is used to convert rotational motion into linear displacement to achieve fine adjustment of the contact wire height. The upper end of the vertical adjustment screw 4 is hinged to the second hinge seat 3, and the lower end is detachably connected to a contact wire clamp 7 for holding the contact wire. Specifically, the detachable connection is a threaded connection or a flange connection. Among them, the first hinge seat 2, the second hinge seat 3, the third hinge seat 5, the telescopic adjustment rod 6 and the vertical adjustment screw 4 together form a deformable triangular frame, which forms the basis for precise and controllable coordinated adjustment of the spatial pose of the contact line.

[0020] Specifically, the telescopic adjustment rod 6 is equipped with a ratchet telescopic handle 9, and the ratchet telescopic handle 9 is equipped with a reversing mechanism 11 for controlling the extension or retraction of the telescopic adjustment rod 6. In one specific embodiment, the reversing mechanism 11 is a forward and reverse gear mechanism. By switching gears, the meshing relationship between the pawl and the ratchet teeth can be changed, thereby driving the telescopic rod to extend outward or retract inward. This achieves effortless and controllable horizontal telescopic adjustment.

[0021] Specifically, the contact wire clamp 7 is equipped with a clamping handle 8 for locking or releasing the contact wire clamp, preferably one that can be manually operated to lock or release. This structure provides quick clamping and reliable fixation, effectively preventing the contact wire from slipping out of the clamp during operation and enhancing operational safety.

[0022] Specifically, the clamping surface of the contact wire clamp 7 is provided with an anti-slip structure. This structure increases the friction between the clamp and the contact wire, further ensuring the stability of the clamping and preventing damage to the surface of the contact wire.

[0023] Specifically, the vertical adjusting screw 4 is connected to the second hinge seat 3 via a ball joint or universal joint. This connection method can accommodate angular deflection during the adjustment process.

[0024] Specifically, the telescopic adjustment rod 6 is connected to both the first hinge seat 2 and the third hinge seat 5 via hinges or ball joints. This structure ensures the flexibility of the deformable triangular frame.

[0025] Specifically, the main support tube 1 and the telescopic adjustment rod 6 are made of lightweight, high-strength materials, such as aluminum alloy or high-strength aluminum alloy. While ensuring the overall structural strength of the tool, the weight of the tool is significantly reduced, making it not only easier to carry and operate on-site, but also more conducive to precise and stable fine-tuning of the contact line during high-altitude operations.

[0026] The method of using the above-mentioned contact wire positioner replacement tool is as follows: First, connect one end of the external tensioning tool to a stable contact wire support structure via a wire sleeve, and the other end to the connecting ring 10 of this tool. Then, clamp the contact wire clamp 7 onto the contact wire near the positioner to be replaced, and tighten the clamp locking handle 8 to ensure the contact wire is reliably clamped. Next, operate the external tensioning tool to tighten it appropriately, transferring some of the contact wire tension to this tool. Adjust the reversing mechanism 11 of the ratchet telescopic handle 9 to the retraction position, and operate the ratchet handle 9 to slowly retract the telescopic adjustment rod 6. The retraction of the telescopic rod 6 drives the triangular frame composed of the telescopic adjustment rod 6, the vertical adjusting screw 4, and the main support tube 1 to deform, thereby causing the contact wire clamp 7 to perform coordinated horizontal and vertical displacement, smoothly and accurately unloading the contact wire tension completely. After confirming that the contact wire tension has been completely and safely unloaded, the old positioner can be removed. When installing a new positioner, the wire clamp of the new positioner can be accurately aligned and placed into the contact wire groove by finely adjusting the telescopic adjustment rod 6 or rotating the vertical adjustment screw 4. After replacement, adjust the reversing mechanism 11 to the extension position and operate the ratchet telescopic handle 9 to slowly extend the telescopic adjustment rod 6. The triangular frame will then reset, smoothly pushing the contact wire back to its original working position, and the tension will be safely restored. Finally, release the clamp locking handle 8, remove the contact wire clamp 7, and then remove this tool and the external tensioning tool in sequence. The operation is now complete.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A tool for replacing contact wire positioners, characterized in that, include: The main support tube is provided with a connecting ring for connecting to an external fixing point; The first hinge seat and the second hinge seat are respectively fixedly mounted on the main support tube; A telescopic adjusting rod, one end of which is hinged to the first hinge seat; The third hinge seat is hinged to the end of the telescopic adjustment rod away from the first hinge seat, and an internal threaded sleeve is fixedly installed inside the third hinge seat; A vertical adjusting screw passes through the third hinge seat and is threaded into the internal thread sleeve. The upper end of the vertical adjusting screw is hinged to the second hinge seat, and the lower end is detachably connected to a contact wire clamp for holding the contact wire.

2. The contact wire positioner replacement tool according to claim 1, characterized in that, The telescopic adjustment rod is equipped with a ratchet telescopic handle, and the ratchet telescopic handle is equipped with a reversing mechanism for controlling the extension or retraction of the telescopic adjustment rod.

3. The contact wire positioner replacement tool according to claim 1, characterized in that, The contact wire clamp is equipped with a clamp locking handle for manually locking or unlocking the contact wire clamp.

4. The contact wire positioner replacement tool according to claim 1, characterized in that, The clamping surface of the contact wire clamp is provided with an anti-slip structure.

5. The contact wire positioner replacement tool according to claim 1, characterized in that, The vertical adjusting screw is connected to the second hinge seat via a ball joint or universal joint.

6. The contact wire positioner replacement tool according to claim 1, characterized in that, The telescopic adjusting rod is connected to both the first and third hinge seats via hinges or ball joints.

7. The contact wire positioner replacement tool according to claim 1, characterized in that, The detachable connection is either a threaded connection or a flange connection.

8. The contact wire positioner replacement tool according to claim 1, characterized in that, The main support tube and telescopic adjustment rod are made of lightweight, high-strength materials.

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