Special tool for rapidly processing falling of contact network positioner

Abstract

The utility model discloses a special tool for rapidly processing falling of a contact network positioner, which belongs to the technical field of electrified railways and comprises a ground wire hook head, a dropper wire and a handle, the ground wire hook head is detachably connected with the handle through a clamping assembly, the clamping assembly comprises a clamping head and a clamping cap, and the clamping head is detachably connected with the handle through the clamping cap. The clamping cap is arranged at the lower end of the ground wire hook head, the clamping head is arranged at the upper end of the handle, and the dropper line is connected to the side face of the ground wire hook head. According to the utility model, detachable connection between the ground wire hook head and the handle is realized through the clamping assembly, so that the tool can be quickly assembled in use, and the working efficiency is improved; after the operation is completed, the tool can be conveniently detached, and the tool is convenient to carry and store; the structural arrangement of the ground wire hook head can ensure that the ground wire hook head is tightly attached to related parts of the overhead line system, and reliable connection is achieved.

Description

Technical Field

[0001] This utility model relates to the field of electrified railways, and in particular to a special tool for quickly handling the detachment of contact wire positioners. Background Technology

[0002] In the operation of electrified railways, the overhead contact line positioner plays a crucial role, fixing the position of the contact wire and ensuring stable current collection by the electric locomotive's pantograph. However, due to long-term exposure to external environmental factors (such as strong winds, snow, and temperature changes) and mechanical vibrations, the contact line positioner may detach. Once detached, it will seriously affect the normal operation of the electric locomotive and may even cause a safety accident. Currently, temporary emergency tools are typically used to handle detached contact line positioners. However, existing emergency tools have many shortcomings; their structural design is unreasonable, resulting in complex and time-consuming installation and disassembly processes, failing to meet the need for rapid handling. Therefore, there is an urgent need for a specialized tool that can quickly, safely, and reliably handle the problem of detached contact line positioners. Utility Model Content

[0003] The purpose of this invention is to provide a special tool for quickly handling the detachment of contact wire positioners, in order to solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides a special tool for quickly handling the detachment of contact wire positioners, including a ground wire hook, a dropper wire, and a handle. The ground wire hook and the handle are detachably connected by a snap-fit ​​assembly. The snap-fit ​​assembly includes a snap-fit ​​connector and a snap-fit ​​cap. The snap-fit ​​cap is located at the lower end of the ground wire hook, and the snap-fit ​​connector is located at the upper end of the handle. The dropper wire is connected to the side of the ground wire hook.

[0005] Preferably, the grounding hook includes a hook body and a connecting block connected to the lower end of the hook body. The hook body is configured with a U-shaped structure, and two grooves are symmetrically formed on the inner side of the hook body. The tops of the two grooves are separated by a stop block.

[0006] Preferably, a suspension lug is rotatably connected to the bottom end of the groove, the free end of the suspension lug abuts against the abutment block, and an elastic abutment is rotatably connected to the middle of the groove, the other end of the elastic abutment being fixedly connected to the middle of the suspension lug.

[0007] Preferably, the suspension lug is configured with an upper first arc portion and a lower second arc portion, wherein the first arc portion and the second arc portion are curved in opposite directions.

[0008] Preferably, two copper wire lugs are crimped onto the outer side of the connecting block, and the other ends of the two copper wire lugs are respectively connected to the two ends of the drop wire.

[0009] Preferably, one end of the snap-fit ​​cap is fixedly connected to the lower end of the connecting block, and the other end of the snap-fit ​​cap is configured as a hollow, horn-like structure. The bottom outer wall of the snap-fit ​​cap is provided with an O-type snap-fit ​​interface and an inverted L-shaped opening, and the middle part of the O-type snap-fit ​​interface is connected to the inverted L-shaped opening.

[0010] Preferably, the snap-fit ​​connector includes a connecting post, with a snap-fit ​​post vertically disposed at the upper end of the connecting post, and an elastic sleeve fitted on the top of the connecting post, the elastic sleeve being disposed at the upper end of the snap-fit ​​post.

[0011] Therefore, the special tool for quickly handling the detachment of a contact wire positioner using the above-described structure has the following beneficial effects:

[0012] (1) Convenient and detachable connection: The grounding hook and handle are detachably connected via a snap-fit ​​assembly, allowing for quick tool assembly during use and improving work efficiency; after use, the tool can be easily disassembled for convenient carrying and storage. The snap-fit ​​cap's horn-like structure, along with the O-type snap-fit ​​interface and inverted L-shaped opening, combined with the snap-fit ​​connector's connecting post and snap-fit ​​post, allows for easy and quick snap-fit ​​by rotation, ensuring a stable and reliable connection and effectively preventing accidental separation of tool parts during operation.

[0013] (2) Stable positioning and connection function: The U-shaped structure of the ground wire hook and the groove on the inner side, together with the design of the suspension lug and the elastic abutment, can stably hook onto the relevant parts of the contact network. Under the action of the elastic abutment, the suspension lug can adjust its position according to the actual situation to ensure a tight fit with the contact network parts and provide a reliable connection.

[0014] (3) Safe electrical connection: The two copper wire lugs crimped to the outside of the connecting block are connected to the drop wire, forming a reliable electrical path, which can effectively release any charge that may exist in the contact wire and ensure the safety of the operators. Moreover, this electrical connection structure is simple and stable, and is not prone to loosening or poor contact, ensuring the reliability of the tool in terms of electrical performance.

[0015] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the grounding hook in an embodiment of the present utility model;

[0018] Figure 3This is a schematic diagram of the snap-fit ​​assembly according to an embodiment of the present utility model;

[0019] Figure label:

[0020] 1. Grounding hook; 11. Hook body; 12. Connecting block; 13. Groove; 14. Abutment; 15. Suspension lug; 16. Elastic abutment; 2. Suspension wire; 3. Handle; 4. Copper wire lug; 5. Clip connector; 51. Connecting post; 52. Clip connector; 53. Elastic sleeve; 6. Clip connector cap. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0022] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] Example

[0024] like Figures 1-3 As shown, this utility model provides a special tool for quick handling of contact wire positioner detachment, including a ground wire hook 1, a drop wire 2, and a handle 3. The ground wire hook 1 and the handle 3 are detachably connected by a snap-fit ​​assembly. The ground wire hook 1 includes an integrally formed hook body 11 and a connecting block 12 connected to the lower end of the hook body 11. The hook body 11 is configured with a U-shaped structure. Two grooves 13 are symmetrically opened on the inner side of the hook body 11. The tops of the two grooves 13 are separated by a stop block 14 to form an independent "drop wire nose mounting cavity". At the same time, the setting of the stop block 14 can restrict the position of the drop wire nose 15 to ensure that the two drop wire noses 15 can be symmetrically set.

[0025] The bottom end of the groove 13 is rotatably connected to a suspension lug 15 via a pin. The free end of the suspension lug 15 abuts against the abutment block 14. The middle part of the groove 13 is rotatably connected to a flexible abutment post 16 via a pin. The other end of the flexible abutment post 16 is fixedly connected to the middle part of the suspension lug 15. The flexible abutment post 16 provides a small degree of freedom of swing, allowing the suspension lug 15 to automatically adjust its angle with the contact wire components (such as contact wires of different diameters, inclined positioning clamps), ensuring a tight fit of the arc surface. The above rotations are all limit rotations, not free rotations, and are set using conventional methods in the art.

[0026] The suspension lug 15 is designed as a one-piece molded structure, including an upper first arc portion and a lower second arc portion. The first and second arc portions are bent in opposite directions. This reverse bending structure utilizes the weight or tension of the contact wire components to create a "lever-type self-locking" mechanism between the suspension lug 15 and the groove 13 abutment 14, resulting in a tighter fit under pressure and preventing slippage. Additionally, the second arc portion between the two suspension lugs 15 can guide the movement of contact wire components during connection, and then the first arc portions of the two suspension lugs 15 are used to engage the contact wire components.

[0027] The dropper wire 2 is connected to the side of the grounding hook 1. Two copper wire lugs 4 are bolted to the outside of the connecting block 12. The other ends of the two copper wire lugs 4 are connected to the dropper wire 2. In this embodiment, the dropper wire 2 (multi-strand soft copper wire) is stripped and inserted into the hole of the copper wire lug 4 after being cold-pressed by hydraulic clamps, forming a molecular-level metallurgical bond. The tensile strength of the copper wire lug 4 is greater than or equal to that of the dropper wire 2 body, avoiding breakage due to pulling. At the same time, the dropper wire 2 is reliably connected to the connecting block 12 through the copper wire lugs 4, ensuring the normal electrical path.

[0028] When the contact wire positioner falls off and needs to be handled, the operator holds the handle 3 and uses the suspension wire 2 to hook the positioner. Then, the U-shaped hook body 11 of the ground wire hook head 1 is aligned with the relevant components of the contact wire, such as the contact wire or positioning clamp. Since the bottom end of the groove 13 is rotatably connected to the suspension wire lug 15, and one end of the elastic abutment 16 rotatably connected in the middle of the groove 13 is fixedly connected to the middle of the suspension wire lug 15, during the hanging process, the elastic abutment 16 can be appropriately adjusted according to the shape and position of the component. The suspension wire lug 15 slides in the groove 13, causing the two suspension wire lugs 15 to separate. At the same time, the contact wire enters the position between the two suspension wire lugs 15, realizing the stable locking of the contact wire component.

[0029] The snap-fit ​​assembly includes an integrally formed snap-fit ​​connector 5 and a snap-fit ​​cap 6. The snap-fit ​​cap 6 is fixedly connected (welded) to the lower end of the grounding hook 1, and the snap-fit ​​connector 5 is fixedly connected to the upper end of the handle 3. The snap-fit ​​connector 5 includes a connecting post 51, and a snap-fit ​​post 52 is vertically arranged at the upper end of the connecting post 51. An elastic sleeve 53 is fitted on the top of the connecting post 51, and the elastic sleeve 53 is located at the upper end of the snap-fit ​​post 52. One end of the snap-fit ​​cap 6 is fixedly connected to the lower end of the connecting block 12, and the other end of the snap-fit ​​cap 6 is set as a hollow, horn-like structure. An O-type snap-fit ​​interface and an inverted L-shaped opening are opened on the outer wall of the bottom end of the snap-fit ​​cap 6. The middle part of the O-type snap-fit ​​interface is connected to the top of the inverted L-shaped opening. The O-type snap-fit ​​interface realizes annular limiting to prevent axial fall-off, and rotates and locks with the inverted L-shaped opening to prevent circumferential loosening. The elastic sleeve 53 compensates for processing errors to ensure that there is no risk of component separation during high-altitude operations.

[0030] In the above structure, the snap-fit ​​connector 5 is integrated into the upper end of the handle 3, including a snap-fit ​​post 52 perpendicular to the connecting post 51, and an elastic sleeve 53 (such as rubber material) is fitted on the top of the connecting post 51; during assembly, the snap-fit ​​post 52 is inserted vertically along the inverted L-shaped opening, and after rotating the handle 3, it slides into the O-type snap-fit ​​interface, and the elastic sleeve 53 is compressed and deformed to fill the gap, forming an interference fit; it can achieve quick insertion and removal in 1 second without tools, meeting the "rapid response" requirement for contact network faults.

[0031] In practical work, the connecting post 51 of the snap-fit ​​connector 5 is inserted into the hollow part of the snap-fit ​​cap 6. Since the bottom outer wall of the snap-fit ​​cap 6 has an O-type snap-fit ​​interface and an inverted L-shaped opening, and the middle of the O-type snap-fit ​​interface is connected to the top of the inverted L-shaped opening, when the snap-fit ​​post 52 reaches the appropriate position, the handle 3 is rotated to make the snap-fit ​​post 52 slide from the inverted L-shaped opening into the O-type snap-fit ​​interface, so that the snap-fit ​​post 52 is locked at the bottom of the O-type snap-fit ​​interface. During this process, the elastic sleeve 53 undergoes slight deformation under the action of the snap-fit ​​post 52, which further increases the tightness of the snap-fit, thereby completing the stable connection between the ground wire hook 1 and the handle 3.

[0032] After completing the connection between the upper grounding hook 1 and the contact wire, gently lift the handle upwards to separate the locking pin from the bottom of the O-type interface. Then, rotate the handle 3 in the opposite direction to allow the locking pin 52 to slide from the O-type interface into the inverted L-shaped opening. Then, pull the locking pin 5 out of the locking cap 6 to separate the grounding hook 1 from the handle 3, making it convenient for tool storage and subsequent use.

[0033] The materials used in the above-mentioned device are conventional materials in the field, and the connection methods between the components are also conventional settings in the field, without any specific limitations.

[0034] Therefore, this utility model provides a special tool for quickly handling the detachment of a contact wire locator using the above-mentioned structure. The ground wire hook and the handle are detachably connected through a snap-fit ​​component, allowing for quick assembly during use and improving work efficiency. After the work is completed, the tool can be easily disassembled for convenient carrying and storage. The structure of the ground wire hook ensures a tight fit with the contact wire components, achieving a reliable connection.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A special tool for quickly handling the detachment of contact wire positioners, characterized in that: The device includes a grounding hook, a dropper wire, and a handle. The grounding hook and the handle are detachably connected by a snap-fit ​​assembly. The snap-fit ​​assembly includes a snap-fit ​​connector and a snap-fit ​​cap. The snap-fit ​​cap is located at the lower end of the grounding hook, and the snap-fit ​​connector is located at the upper end of the handle. The dropper wire is connected to the side of the grounding hook.

2. The special tool for rapid handling of contact wire locator detachment according to claim 1, characterized in that: The grounding hook includes a hook body and a connecting block connected to the lower end of the hook body. The hook body is configured as a U-shaped structure, and two grooves are symmetrically opened on the inner side of the hook body. The tops of the two grooves are separated by a stop block.

3. A special tool for rapid handling of contact wire locator detachment according to claim 2, characterized in that: A suspension lug is rotatably connected to the bottom end of the groove, the free end of the suspension lug abuts against the abutment block, and an elastic abutment is rotatably connected to the middle of the groove, the other end of the elastic abutment being fixedly connected to the middle of the suspension lug.

4. A special tool for rapid handling of contact wire locator detachment according to claim 3, characterized in that: The suspension lug is configured with an upper first arc portion and a lower second arc portion, with the first arc portion and the second arc portion bending in opposite directions.

5. A special tool for rapid handling of contact wire locator detachment according to claim 4, characterized in that: Two copper wire lugs are crimped onto the outer side of the connecting block, and the other ends of the two copper wire lugs are respectively connected to the two ends of the drop wire.

6. A special tool for rapid handling of contact wire locator detachment according to claim 5, characterized in that: One end of the snap-fit ​​cap is fixedly connected to the lower end of the connecting block, and the other end of the snap-fit ​​cap is set as a hollow horn-like structure. The bottom outer wall of the snap-fit ​​cap is provided with an O-type snap-fit ​​interface and an inverted L-shaped opening, and the middle part of the O-type snap-fit ​​interface is connected to the inverted L-shaped opening.

7. A special tool for rapid handling of contact wire locator detachment according to claim 6, characterized in that: The snap-fit ​​connector includes a connecting post, with a snap-fit ​​post vertically disposed at the upper end of the connecting post, and an elastic sleeve fitted on the top of the connecting post, the elastic sleeve being disposed at the upper end of the snap-fit ​​post.

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