Ground hook for electrically operated grounding device

Abstract

The utility model belongs to the technical field of electric power equipment, disclose a ground hook for electric grounding device. Ground hook for electric grounding device includes the hook main part, clamping component, connecting rod and ground wire snout, the hook main part includes the curved part, and the curved part is used for spacing contact net's wire; Clamping component includes rotary compression link and torsion spring, and rotary compression link is rotatably connected in the hook main part, and torsion spring is fixedly connected in the hook main part, and both ends of torsion spring are fixedly connected in rotary compression link and hook main part, and torsion spring is configured as drive rotary compression link, to make rotary compression link pressure bonding wire in curved part, connecting rod is fixedly connected in rotary compression link, and position sensor is provided on connecting rod, and position sensor is configured as monitoring the position of rotary compression link, ground wire snout is fixedly connected in the hook main part, and ground wire snout is used for connecting ground wire. The utility model can improve the firmness of the ground hook, improve the maintenance efficiency and safety.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, and in particular to a grounding hook for an electric grounding device. Background Technology

[0002] In equipment maintenance operations in industries such as rail transit and power systems, electrically powered grounding devices are core equipment for ensuring the safety of personnel and equipment. These devices reliably connect to the overhead contact line or the equipment under maintenance via grounding hooks, conducting residual charges and induced currents from the equipment to the ground, preventing electric shock accidents during maintenance and ensuring the safety of maintenance personnel. As the core component for achieving electrical connections, the performance of the grounding hook directly determines the operational stability and safety assurance capability of the grounding system.

[0003] However, the existing electric grounding devices have simple grounding hook structures, mostly relying on simple snap-fit ​​or gravity adhesion to achieve attachment. They are prone to loosening or even falling off when subjected to external vibrations, wind interference, or slight touches, resulting in insufficient attachment stability. In addition, during operation, maintenance personnel need to determine whether the grounding hook is stably attached to the contact wire. If the grounding device is pulled after the grounding hook is stably attached to the contact wire, it will cause hard pulling or friction damage to the conductive parts and suspension structure of the contact wire, which not only affects the efficiency of maintenance work, but may also cause equipment failure and safety hazards. Utility Model Content

[0004] The purpose of this utility model is to provide a grounding hook for an electric grounding device, which improves the stability of the grounding hook, and enhances maintenance efficiency and safety.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A grounding hook for an electrically driven grounding device, the electrically driven grounding device being able to move the grounding hook to the contact wire area, wherein the grounding hook for the electrically driven grounding device includes:

[0007] The hook body includes a curved portion for limiting the conductor of the contact network. The hook body is made of conductive material and has a clearance groove.

[0008] The clamping assembly includes a rotating pressure rod and a torsion spring. The rotating pressure rod is made of conductive material and is rotatably connected to the hook body. The rotating pressure rod can rotate within the clearance groove. The torsion spring is fixedly connected to the hook body, and its two ends are respectively fixedly connected to the rotating pressure rod and the hook body. The torsion spring is configured to drive the rotating pressure rod so that the rotating pressure rod presses the wire against the bend.

[0009] A connecting rod is fixedly connected to the rotating pressure rod, and a position sensor is provided on the connecting rod, which is configured to monitor the position of the rotating pressure rod;

[0010] The grounding wire lug is fixedly connected to the hook body and is used to connect the grounding wire.

[0011] The aforementioned grounding hook for an electric grounding device has a bent portion with a V-shaped groove, the bottom of which is an arc shape.

[0012] The aforementioned grounding hook for an electric grounding device includes a first body and a second body, which are arranged at an angle to form the curved portion. A rotating pressure rod is rotatably connected to the second body, and a torsion spring is fixedly connected to the second body. The two ends of the torsion spring are respectively connected to the second body and the rotating pressure rod.

[0013] The aforementioned grounding hook for an electric grounding device includes a limiting hole for the rotating pressure rod, an ear plate for the second main body, one end of the torsion spring passing through the limiting hole to fix the torsion spring and the rotating pressure rod, and the other end of the torsion spring passing through the ear hole of the ear plate to fix the torsion spring and the second main body.

[0014] The aforementioned grounding hook for an electric grounding device, wherein one end of the connecting rod is fixedly connected to the rotating pressure rod, the other end of the connecting rod is provided with the position sensor, the clearance groove can avoid the connecting rod, and the position sensor is configured to monitor the position of the rotating pressure rod.

[0015] The aforementioned grounding hook for an electric grounding device further includes a first connecting shaft, which is inserted through and fixedly connected to the hook body, and the rotating pressure rod is rotatably connected to the first connecting shaft.

[0016] The aforementioned grounding hook for an electric grounding device further includes a second connecting shaft, which passes through and is fixed to the hook body, and the torsion spring passes through and is fixedly connected to the second connecting shaft.

[0017] The aforementioned grounding hook for an electric grounding device further includes a wiring terminal on the hook body, to which the grounding wire lug is fixedly connected.

[0018] The beneficial effects of this utility model are:

[0019] This utility model provides a grounding hook for an electric grounding device. In use, the electric grounding device moves the grounding hook to the contact network area and presses down on the contact network conductor. Overcoming the force of the torsion spring, the conductor slides smoothly into the curved part of the hook body. Then, the torsion spring pulls the rotating pressure rod, causing it to press the conductor into the curved part, improving the stability of the grounding hook's attachment to the contact network. Simultaneously, a connecting rod is fixedly connected to the rotating pressure rod, and a position sensor on the connecting rod monitors the position of the rotating pressure rod. When the rotating pressure rod presses the contact network conductor into the curved part, it sends a feedback signal to inform maintenance personnel that the grounding hook is stably attached to the contact network, stopping the pulling of the grounding device. This avoids hard pulling or friction damage to the conductive components and suspension structure of the contact network, improving safety and ensuring smooth maintenance work, thus improving maintenance efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the grounding hook for an electric grounding device provided in an embodiment of the present invention from a first perspective.

[0021] Figure 2 This is a schematic diagram of the grounding hook for an electric grounding device provided in an embodiment of the present invention from a second perspective.

[0022] Figure 3 This is a schematic diagram of the structure of the hook body provided in this embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the cooperation between the rotating pressure rod and the connecting rod provided in an embodiment of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the torsion spring provided in this embodiment of the utility model.

[0025] In the picture:

[0026] 1. Hook body; 11. Bend; 12. Clearance groove; 13. First body; 14. Second body

[0027] 2. Clamping assembly; 21. Rotary pressure rod; 211. Limiting hole; 212. Mounting hole; 22. Torsion spring;

[0028] 3. Connecting rod;

[0029] 4. Grounding wire lug;

[0030] 5. Ear plates;

[0031] 6. First connecting shaft; 7. Second connecting shaft;

[0032] 100. Grounding wire. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0037] like Figures 1-5As shown, the grounding hook for the electric grounding device includes a hook body 1, a clamping assembly 2, a connecting rod 3, and a grounding wire lug 4. The hook body 1 includes a bent portion 11, which is used to limit the conductor of the contact network. The hook body 1 is made of conductive material and has a clearance groove 12. The clamping assembly 2 includes a rotating pressure rod 21 and a torsion spring 22. The rotating pressure rod 21 is made of conductive material and is rotatably connected to the hook body 1. The rotating pressure rod 21 can rotate within the clearance groove 12. The torsion spring 22 is fixedly connected to the hook body 1, and its two ends are fixedly connected to the rotating pressure rod 21 and the hook body 1, respectively. The torsion spring 22 is configured to drive the rotating pressure rod 21 so that the rotating pressure rod 21 presses the conductor against the bent portion 11. The connecting rod 3 is fixedly connected to the rotating pressure rod 21 and is equipped with a position sensor, which is configured to monitor the position of the rotating pressure rod 21. The grounding wire lug 4 is fixedly connected to the hook body 1 and is used to connect the grounding wire 100.

[0038] The grounding hook for an electric grounding device provided by this utility model, when in use, allows the electric grounding device to move the grounding hook to the contact network area and press down on the contact network conductor. Overcoming the elastic force of the torsion spring 22, the contact network conductor slides smoothly into the curved portion 11 of the hook body 1. Then, the torsion spring 22 pulls the rotating pressure rod 21, causing the rotating pressure rod 21 to press the conductor against the curved portion 11, improving the stability of the grounding hook's attachment to the contact network. Simultaneously, the connecting rod 3 is fixedly connected to the rotating pressure rod 21. A position sensor on the connecting rod 3 can monitor the position of the rotating pressure rod 21. When the rotating pressure rod 21 presses the contact network conductor against the curved portion 11, it can send a feedback signal to inform maintenance personnel that the grounding hook is stably attached to the contact network, stopping the pulling of the grounding device and avoiding hard pulling or friction damage to the conductive components and suspension structure of the contact network, thus improving safety and ensuring smooth maintenance work and improving maintenance efficiency.

[0039] Both the hook body 1 and the rotating pressure rod 21 are made of conductive material, which can transfer the charge to the grounding wire lug 4 and then lead it out from the grounding wire 100, thus avoiding electric shock accidents during the maintenance process and improving the safety of the maintenance process.

[0040] Specifically, the hook body 1 and the rotating pressure rod 21 can be made of aluminum alloy, which is conductive, reduces the weight of the grounding hook, and makes it easier for maintenance personnel to operate.

[0041] Furthermore, the hook body 1 is also provided with a terminal block, and the terminal block is fixedly connected to the grounding wire lug 4 to prevent the grounding wire lug 4 from loosening due to external force or vibration, thereby improving the connection stability between the grounding wire lug 4 and the hook body 1, and thus ensuring the smooth progress of maintenance work and improving maintenance efficiency.

[0042] In this embodiment, the hook body 1 includes a first body 13 and a second body 14. The first body 13 and the second body 14 are arranged at an angle to form a curved portion 11. A rotating pressure rod 21 is rotatably connected to the second body 14. A torsion spring 22 is fixedly connected to the second body 14. The two ends of the torsion spring 22 are respectively connected to the second body 14 and the rotating pressure rod 21. The angle between the first body 13 and the second body 14 forms the curved portion 11, which can ensure that the contact wire slides smoothly into the curved portion 11, thereby limiting the conductor of the contact wire on both sides. At the same time, the torsion spring 22 pulls the rotating pressure rod 21 to press the conductor of the contact wire, improving the stability of the connection between the grounding hook and the contact wire.

[0043] Specifically, the included angle between the first body 13 and the second body 14 is 60°-150°, and optionally, the included angle between the first body 13 and the second body 14 is 80°.

[0044] Specifically, see Figure 1 and Figure 2 A portion of the clearance groove 12 extends along the length of the first body 13, and the remaining portion of the clearance groove 12 extends along the length of the second body 14.

[0045] Specifically, the bending part 11 has a V-shaped groove with a circular arc bottom. The cross-section of the contact wire is circular, and the circular arc bottom of the groove can fit the contact wire, further improving the connection stability between the grounding hook and the contact wire.

[0046] The two ends of the torsion spring 22 are respectively connected to the rotating pressure rod 21 and the hook body 1. For example, the rotating pressure rod 21 is provided with a limiting hole 211, and the second body 14 is provided with an ear plate 5. One end of the torsion spring 22 passes through the limiting hole 211 to fix the torsion spring 22 and the rotating pressure rod 21. The other end of the torsion spring 22 passes through the ear hole of the ear plate 5 to fix the torsion spring 22 and the second body 14. After the two ends of the torsion spring 22 pass through the limiting hole 211 and the ear hole of the ear plate 5 respectively, they can be firmly locked, limiting the axial movement and radial displacement of the torsion spring 22, keeping the position of the torsion spring 22 stable, and ensuring stable pulling of the rotating pressure rod 21, so as to improve the connection efficiency of the grounding hook and the contact wire.

[0047] Specifically, the grounding hook for the electric grounding device also includes a first connecting shaft 6, which is inserted through and fixedly connected to the hook body 1, and the rotating pressure rod 21 is rotatably connected to the first connecting shaft 6. The shaft hole connection is convenient.

[0048] Specifically, the hook body 1 has a first connecting hole, the first connecting shaft 6 is interference-fitted with the first connecting hole, the first connecting shaft 6 is interference-fitted with the inner ring of the bearing, and the outer ring of the bearing is interference-fitted with the mounting hole 212 of the rotating pressure rod 21, so that the rotation process of the rotating pressure rod 21 is smoother.

[0049] Specifically, the grounding hook for the electric grounding device also includes a second connecting shaft 7, which is inserted through and fixed to the hook body 1. A torsion spring 22 is inserted through and fixedly connected to the second connecting shaft 7, providing clearance space to ensure that the two ends of the torsion spring 22 can be connected to the rotating pressure rod 21 and the hook body 1 respectively.

[0050] Furthermore, the rotating pressure rod 21 is rotatably connected to the first connecting shaft 6, and the first connecting shaft 6 is fixedly connected to the second body 14. The two ends of the torsion spring 22 are respectively fixed to the second body 14 and the end of the rotating pressure rod 21 away from the first connecting shaft 6, which can increase the lever arm, improve the rotation range of the rotating pressure rod 21, facilitate the sliding of the contact wire into the bending part 11, and improve maintenance efficiency.

[0051] In this embodiment, one end of the connecting rod 3 is fixedly connected to the rotating pressure rod 21, and the other end of the connecting rod 3 is provided with a position sensor. The clearance groove 12 can avoid the connecting rod 3. The position sensor is configured to monitor the position of the rotating pressure rod 21. The position sensor can send a feedback signal to let the maintenance personnel know that the grounding hook is stably attached to the contact network, stop pulling the grounding device, avoid hard pulling or friction damage to the conductive parts and suspension structure of the contact network, improve safety, and at the same time ensure the smooth progress of maintenance work and improve maintenance effect.

[0052] It should be noted that position sensors are commonly used electronic devices, and this embodiment does not elaborate on the structure, usage, and operation of position sensors.

[0053] In other embodiments, the position sensor may also be located in the middle of the connecting rod 3, or inside the connecting rod 3.

[0054] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A grounding hook for an electrically driven grounding device, wherein the electrically driven grounding device can move the grounding hook to the contact wire area, characterized in that, The grounding hook for the electric grounding device includes: The hook body (1) includes a bent part (11), which is used to limit the wire of the contact network. The hook body (1) is made of conductive material and has a relief groove (12). The clamping assembly (2) includes a rotating pressure rod (21) and a torsion spring (22). The rotating pressure rod (21) is made of conductive material and is rotatably connected to the hook body (1). The rotating pressure rod (21) can rotate within the clearance groove (12). The torsion spring (22) is fixedly connected to the hook body (1), and both ends of the torsion spring (22) are respectively fixedly connected to the rotating pressure rod (21) and the hook body (1). The torsion spring (22) is configured to drive the rotating pressure rod (21) so that the rotating pressure rod (21) presses the wire into the bend (11). A connecting rod (3) is fixedly connected to the rotating pressure rod (21). A position sensor is provided on the connecting rod (3), and the position sensor is configured to monitor the position of the rotating pressure rod (21). The grounding wire lug (4) is fixedly connected to the hook body (1), and the grounding wire lug (4) is used to connect the grounding wire (100).

2. The grounding hook for an electric grounding device according to claim 1, characterized in that, The curved portion (11) has a V-shaped groove, the bottom of which is an arc shape.

3. The grounding hook for an electric grounding device according to claim 1, characterized in that, The hook body (1) includes a first body (13) and a second body (14). The first body (13) and the second body (14) are arranged at an angle to form the curved part (11). The rotating pressure rod (21) is rotatably connected to the second body (14). The torsion spring (22) is fixedly connected to the second body (14). The two ends of the torsion spring (22) are respectively connected to the second body (14) and the rotating pressure rod (21).

4. The grounding hook for an electric grounding device according to claim 3, characterized in that, The rotating pressure rod (21) is provided with a limiting hole (211), the second body (14) is provided with an ear plate (5), one end of the torsion spring (22) is inserted into the limiting hole (211) to fix the torsion spring (22) and the rotating pressure rod (21), and the other end of the torsion spring (22) is inserted into the ear hole of the ear plate (5) to fix the torsion spring (22) and the second body (14).

5. The grounding hook for an electric grounding device according to claim 1, characterized in that, One end of the connecting rod (3) is fixedly connected to the rotating pressure rod (21), and the other end of the connecting rod (3) is provided with the position sensor. The clearance groove (12) can avoid the connecting rod (3). The position sensor is configured to monitor the position of the rotating pressure rod (21).

6. The grounding hook for an electric grounding device according to claim 1, characterized in that, It also includes a first connecting shaft (6), which is inserted through and fixedly connected to the hook body (1), and the rotating pressure rod (21) is rotatably connected to the first connecting shaft (6).

7. The grounding hook for an electric grounding device according to claim 1, characterized in that, It also includes a second connecting shaft (7), which is inserted through and fixed to the hook body (1), and the torsion spring (22) is inserted through and fixedly connected to the second connecting shaft (7).

8. The grounding hook for an electric grounding device according to any one of claims 1-7, characterized in that, The hook body (1) is also provided with a terminal block, and the terminal block is fixedly connected to the grounding wire lug (4).

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