Rapid grounding device for rigid contact network

Abstract

The utility model discloses a rapid grounding device for a rigid contact network, which comprises a main frame, a contact block and a locking assembly, a clamping part is constructed at the upper end of the main frame, and an extension part opposite to the clamping part is arranged at the lower end of the main frame; the contact block is movably arranged on the extension part, a clamping space is defined by the contact block and the clamping part, and the extension part is provided with a first spring which pushes the contact block to a contact net at the bottom end of the busbar and keeps a compressed state; the locking assembly comprises a locking piece and an unlocking piece which are in linkage, the unlocking piece is movably arranged on the clamping part, the lower end of the unlocking piece stretches into the clamping space, and the clamping part is provided with a second spring which pushes the unlocking piece to reset so as to drive the locking piece to reset to the locking position. The scheme has the effects that the busbar can be quickly clamped through the clamping part, and then the locking piece can be unlocked and the contact block can be released only by pulling the insulating telescopic rod to press the unlocking piece, so that the electric connection of the contact network is completed. And at the end, the contact block can be locked and the contact net can be released only by pushing the insulating telescopic rod.

Description

Technical Field

[0001] The utility model relates to the technical field of electrician tools, in particular to a rigid contact network quick grounding device. Background Art

[0002] In some live operations, particularly those involving rail contact lines, grounding is necessary. To achieve this, existing grounding devices, such as conductive clamps, are available. However, due to the thickness of the rigid busbars in the contact line, existing grounding devices cannot be quickly and reliably secured to the busbars. Furthermore, the clamping operation requires a long time to rotate an operating lever. This grounding device is cumbersome to operate, and both disassembly and grounding are time-consuming and laborious. Existing methods tighten the contact line by screwing, which can easily damage or deform the contact wire itself. Utility Model Content

[0003] In response to the defects in the existing technology, the utility model provides a rigid contact network quick grounding device, which can be clamped to the bus more conveniently and reliably, and can be electrically connected to the contact network at the bottom of the bus, and can be easily removed after completion.

[0004] The utility model provides a technical solution: a rigid contact network rapid grounding device, comprising:

[0005] A main frame, wherein the upper end of the main frame is configured with a clamping portion adapted to the top end of the busbar, and the lower end of the main frame is provided with an extension portion opposite to the clamping portion;

[0006] The contact block is movably arranged on the extension portion, and the contact block and the clamping portion define a clamping space for accommodating the busbar. The extension portion is provided with a first spring that pushes the contact block toward the contact network at the bottom end of the busbar and maintains the contact network in a compressed state;

[0007] The locking assembly includes a linked locking member and an unlocking member, the unlocking member is movably arranged on the clamping portion, the lower end of the unlocking member extends into the clamping space, the first end of the locking member is connected to the main frame, and the second end is connected to the contact block to lock the contact block. When the clamping portion is connected to the bus, the unlocking member moves toward the locking member to drive the second end of the locking member to disengage from the contact block to achieve unlocking. The clamping portion is provided with a second spring that pushes the unlocking member to reset to drive the locking member to reset to the locked position.

[0008] The above technical solution has the following beneficial effects: during use, it is used in conjunction with an insulating telescopic rod. The clip-on portion can be quickly snapped into place at the top of the busbar. Then, simply pull the insulating telescopic rod to compress the unlocking member, unlocking the locking member and releasing the contact block, ultimately completing the electrical connection to the contact network at the bottom of the busbar. When finished, simply push the insulating telescopic rod to lock the contact block and release the contact network. It is convenient and quick to use.

[0009] Furthermore, the clamping portion includes a crossbeam, and a hook is provided at the outer end of the crossbeam.

[0010] Furthermore, the clamping portion is provided with a first through hole, the unlocking member is slidably arranged in the first through hole, and the second spring is sleeved on the outside of the unlocking member.

[0011] Furthermore, a second through hole is opened on the extension part, and a shaft body is connected to the lower end of the contact block. The shaft body is slidably arranged in the second through hole, and the first spring is sleeved on the outside of the shaft body.

[0012] Furthermore, the locking member is in an inverted J shape, wrapped around the outside of the clamping portion and the main frame, the first end of the locking member is hinged to the outer end of the clamping portion, the middle part of the locking member is connected to the unlocking member, the second end of the locking member is provided with a ratchet, and the end of the contact block connected to the ratchet is provided with a fixed tooth. When the ratchet and the fixed tooth are engaged, the contact block can only move in one direction away from the unlocking member.

[0013] Furthermore, a window for the locking member to connect with the contact block is provided on the side wall of the main frame, and a guide groove is provided on the side wall of the main frame directly above the window.

[0014] Furthermore, the top of the unlocking member is fixedly connected to a Y-shaped joint, and the top of the Y-shaped joint is provided with a notch for the locking member to extend into, a pin is provided in the notch, and a strip hole is provided on the locking member at a position corresponding to the pin, and the pin passes through the strip hole.

[0015] Furthermore, a shaft sleeve covering the shaft body is provided at a position of the extension portion corresponding to the second through hole, and a disassembly joint for docking with the insulating telescopic rod is also provided at the lower end of the shaft sleeve.

[0016] Furthermore, an arc-shaped groove adapted to the contact network is provided on the top surface of the contact block.

[0017] Furthermore, an axle seat is provided at a position of the clamping portion corresponding to the first through hole, a cavity for accommodating the second spring is constructed in the axle seat, and the unlocking member passes through the axle seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0020] Figure 2 A cross-sectional view of an embodiment of the present utility model;

[0021] Figure 3 This is a structural diagram of the main frame in an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of an embodiment of the utility model combined with an insulating telescopic rod.

[0023] Figure markings: main frame 100, limit plate 101, window 102, clamping part 110, hook 111, extension part 120, contact block 200, arc-shaped groove 201, fixing tooth 202, shaft body 210, first spring 220, sleeve 230, disassembly joint 231, locking member 300, first end 301, second end 302, ratchet 303, docking section 304, strip hole 305, unlocking member 400, Y-shaped joint 410, shaft seat 420, second spring 430, insulating telescopic rod 500. DETAILED DESCRIPTION

[0024] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0025] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which this utility model belongs.

[0026] like Figure 1-4 As shown, this embodiment provides a rigid contact network rapid grounding device, comprising a main frame 100, a contact block 200, and a locking assembly. The device is suitable for use with a rigid contact network consisting of a busbar and a contact network at its base. The upper end of the main frame 100 is configured with a clamping portion 110 that mates with the top of the busbar, while the lower end of the main frame 100 is provided with an extension portion 120 that opposes the clamping portion 110. A busbar typically comprises a top plate and two ribs arranged side by side at the bottom of the top plate. The ends of the two ribs are provided with mutually converging bent portions, with a gap between the ends of the two bent portions for securing the contact network, which is a metal strip. Due to the large distance between the top of the busbar and the contact network, the rigid contact network is also thicker. The shape of the busbar and the thickness of the entire rigid contact network must be considered during grounding. The clamping portion 110 is used to quickly position and secure the busbar, facilitating subsequent electrical connection of the contact block 200 to the contact network.

[0027] The contact block 200 is movably arranged on the extension portion 120. The contact block 200 and the clamping portion 110 define a clamping space for accommodating the busbar. The extension portion 120 is provided with a first spring 220 that pushes the contact block 200 toward the contact network at the bottom end of the busbar and keeps it in a compressed state.

[0028] The locking assembly includes a linked locking member 300 and an unlocking member 400. The unlocking member 400 is movably arranged on the clamping portion 110. The lower end of the unlocking member 400 extends into the clamping space. The first end 301 of the locking member 300 is connected to the main frame 100, and the second end 302 is connected to the contact block 200 to lock the contact block 200. When the clamping portion 110 is connected to the bus, the unlocking member 400 moves toward the locking member 300 to drive the second end 302 of the locking member 300 to disengage from the contact block 200 to achieve unlocking. The clamping portion 110 is provided with a second spring 430 that pushes the unlocking member 400 to reset to drive the locking member 300 to reset to the locked position.

[0029] During use, the insulated telescopic rod 500 is used. The clip 110 allows for quick snapping into place at the top of the busbar. Simply pull the insulated telescopic rod 500 to compress the unlocking member 400, unlocking the locking member 300 and releasing the contact block 200, ultimately completing the electrical connection to the contact network at the bottom of the busbar. When finished, simply push the insulated telescopic rod 500 to lock the contact block 200 and release the contact network. It's quick and easy to use.

[0030] In some embodiments, the clamping portion 110 includes a crossbeam with a hook 111 disposed at the outer end of the crossbeam. The hook 111 is configured to hook onto the right side of the busbar, while the left side of the busbar directly contacts the main frame 100. At this point, the grounding device is fixedly connected to the rigid contact network, facilitating subsequent grounding operations.

[0031] In some embodiments, the engaging portion 110 defines a first through-hole, into which the unlocking member 400 is slidably disposed, and a second spring 430 is sleeved on the exterior of the unlocking member 400. The cooperation between the first through-hole and the unlocking member 400 ensures smoother and more directional movement of the unlocking member 400. Specifically, the unlocking member 400 is a shaft. The bottom end of the shaft can contact the busbar, and the top end of the shaft is connected to the locking member 300.

[0032] In some embodiments, a second through hole is formed in the extension portion 120, and a shaft 210 is connected to the lower end of the contact block 200. The shaft 210 is slidably disposed in the second through hole, and the first spring 220 is sleeved on the outside of the shaft 210. Similarly, the shaft 210 can also constrain the movement direction of the contact block 200, allowing the contact block 200 to move vertically up and down, thereby accurately clamping and fixing the contact network.

[0033] In some embodiments, the locking member 300 is in an inverted J-shape, wrapped around the exterior of the engaging portion 110 and the main frame 100. A first end 301 of the locking member 300 is hingedly connected to the exterior end of the engaging portion 110. The middle portion of the locking member 300 connects to the unlocking member 400. A ratchet tooth 303 is provided at the second end 302 of the locking member 300. The end of the contact block 200 that connects to the ratchet tooth 303 is provided with a fixed tooth 202. When the ratchet tooth 303 and the fixed tooth 202 engage, the contact block 200 can only move in one direction, away from the unlocking member 400. The locking member 300 is preferably a plate structure, meaning that the locking member 300 is in the form of a sheet. The ratchet tooth 303 and the fixed tooth 202 have similar tooth profiles, both with an inclined surface on one side and a vertical surface on the other. Locking is achieved when the ratchet tooth 303 and the fixed tooth 202 contact the vertical surface. Specifically, the inclined surface of the ratchet tooth 303 and the fixed tooth 202 are on the upper side, and the vertical surface is on the lower side. When the locking member 300 is in the locked position, the contact block 200 moves downward and resets to a position where it does not clamp the contact network. The fixed teeth 202 of the contact block 200 come into contact with the inclined surfaces of the ratchet teeth 303. The fixed teeth 202 can push the ratchet teeth 303 away under the action of the inclined surfaces, and the contact block 200 can now move downward in one direction. After the contact block 200 moves into position, the vertical surface of the fixed teeth 202 presses against the vertical surface of the ratchet teeth 303, preventing it from moving upward, thus locking the contact block 200. At this point, the gap between the contact block 200 and the clamping portion 110 is at its maximum, and the contact network and the busbar can be easily disengaged, allowing the grounding device to be removed from the contact network.

[0034] In some embodiments, a window 102 is provided on the side wall of the main frame 100 for connecting the locking member 300 to the contact block 200. A guide groove is also provided on the side wall of the main frame 100 directly above the window 102. The guide groove is formed by two parallel limit plates 101, with the guide groove between the two limit plates 101. When the locking member 300 is in motion, a portion of the locking member 300 is located within the guide groove, which prevents the locking member 300 from swinging back and forth. The window 102 allows the locking member 300 to more easily connect to the second contact block 200, making the overall structure more compact.

[0035] In some embodiments, the top of the unlocking member 400 is fixedly connected to a Y-shaped connector 410. The top of the Y-shaped connector 410 is provided with a notch for the locking member 300 to extend into. A pin is positioned within the notch. A strip-shaped hole 305 is provided on the locking member 300 at a position corresponding to the pin, through which the pin passes. The locking member 300 is a flat sheet of material, meaning it is relatively thin. Therefore, the Y-shaped connector 410 only requires a single notch to accommodate the locking member 300. The combination of the strip-shaped hole 305 and the pin allows the locking member 300 to move relative to the unlocking member 400, specifically through a combination of rotation and sliding. This ensures that the locking member 300 can transition between a locked and unlocked state. During use, the grounding device is first moved laterally to engage the busbar, and then pulled horizontally downward. The engaging portion 110 now engages directly with the busbar. During the attachment process, the unlocking member 400 extending from the bottom of the engaging portion 110 is squeezed and moved upward. The upwardly moving unlocking member 400 pushes away the locking member 300, and the second end 302 of the locking member 300 is released from the locked position, completing the unlocking process. The unlocked contact block 200, pushed by the first spring 220, presses against the contact mesh at the bottom end of the busbar.

[0036] A docking section 304 that fits into the notch is provided at the top of the locking member 300. The docking section 304 is a horizontal cross section that is arched from the body of the locking member 300 to leave a gap between it and the top surface of the clamping portion 110, thereby leaving space for the Y-shaped connector 410.

[0037] In some embodiments, a sleeve 230 covering the shaft 210 is provided at the position corresponding to the second through-hole of the extension 120. The lower end of the sleeve 230 is also provided with a detachable connector 231 for docking with the insulating telescopic rod 500. A first spring 220 is located within the sleeve 230. A shoulder is provided at the upper end of the shaft 210 corresponding to the first spring 220, and a step is provided within the sleeve 230 corresponding to the lower end of the first spring 220. The first spring 220 is a compression spring that compresses the first spring 220 when the contact block 200 moves downward from its position clamped against the contact network. At this point, the contact block 200 is locked by the locking member 300. When the locking member 300 is unlocked, the first spring 220 releases its elastic force, pushing the contact block 200 toward the contact network. To ensure electrical connection between the contact block 200 and the conductive components within the insulating telescopic rod 500, the contact block 200, shaft 210, sleeve 230, and detachable connector 231 are all made of conductive materials.

[0038] To ensure smoother movement of contact block 200, an oil filling hole is located on the exterior of sleeve 230, connected to its inner cavity. Lubricant can be added to sleeve 230 during maintenance. An exhaust hole is also located on the exterior of sleeve 230, below the corresponding oil filling hole. This hole corresponds to the lowest point of movement of shaft 210. This hole balances the air pressure inside and outside sleeve 230, ensuring proper sliding of shaft 210.

[0039] In some embodiments, an arcuate groove 201 adapted to the contact network is provided on the top surface of the contact block 200. The arcuate groove 201 can increase the contact area with the contact network, ensuring the reliability of the electrical connection, and can also clamp the contact network to prevent the contact network from shaking after being clamped.

[0040] In some embodiments, a shaft seat 420 is provided at a position corresponding to the first through-hole of the engaging portion 110. A cavity is constructed within the shaft seat 420 to accommodate the second spring 430, and the unlocking member 400 extends through the shaft seat 420. The top of the shaft seat 420 serves as a clearance hole through which the unlocking member 400 extends. The diameter of the cavity of the shaft seat 420 is larger than the diameter of the clearance hole, so that the upper end of the second spring 430 can abut against the top of the cavity. A shoulder is provided on the unlocking member 400 at a position corresponding to the lower end of the second spring 430. The second spring 430 is a compression spring. After the contact network enters the engaging space, the second spring 430 is compressed. After the operation is completed, the contact block 200 is compressed downwardly by the insulating telescopic rod 500, creating a gap between the unlocking rod and the busbar. The compressed second spring 430 releases its elastic force, returning the unlocking member 400 to its initial position. The pressed contact block 200 is locked by the locking member 300 , and the gap between the contact block 200 and the clamping portion 110 is larger than the thickness of the busbar. At this time, the grounding device can be removed from the busbar.

[0041] In the description of this application, it should be understood that the terms used in this application are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of this utility model, "plurality" means more than two, unless otherwise specifically defined.

[0042] In this application, unless otherwise specified or limited, the terms "connected," "connect," "fixed," and the like should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0043] In the specification of the present invention, a large number of specific details are described. However, it is understood that the embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, systems, and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A rigid contact network rapid grounding device, characterized in that: include: A main frame (100), wherein the upper end of the main frame (100) is configured with a clamping portion (110) adapted to the top end of the busbar, and the lower end of the main frame (100) is provided with an extension portion (120) opposite to the clamping portion (110); A contact block (200), the contact block (200) being movably disposed on the extension portion (120), the contact block (200) and the clamping portion (110) defining a clamping space for accommodating the busbar, the extension portion (120) being provided with a first spring (220) for pushing the contact block (200) toward the contact network at the bottom end of the busbar and maintaining the contact network in a compressed state; A locking assembly, the locking assembly comprising a linked locking member (300) and an unlocking member (400), the unlocking member (400) being movably arranged on the clamping portion (110), the lower end of the unlocking member (400) extending into the clamping space, the first end (301) of the locking member (300) being connected to the main frame (100), and the second end (302) being connected to the contact block (200) to lock the contact block (200), the unlocking member (400) moving toward the locking member (300) when the clamping portion (110) is connected to the bus bar to drive the second end (302) of the locking member (300) to disengage from the contact block (200) to achieve unlocking, the clamping portion (110) being provided with a second spring (430) for pushing the unlocking member (400) to reset to drive the locking member (300) to reset to the locked position.

2. A rigid contact network rapid grounding device according to claim 1, characterized in that: The clamping portion (110) comprises a crossbeam, and a clamping hook (111) is provided at the outer end of the crossbeam.

3. A rigid contact network rapid grounding device according to claim 1, characterized in that: The clamping portion (110) is provided with a first through hole, the unlocking member (400) is slidably disposed in the first through hole, and the second spring (430) is sleeved on the outside of the unlocking member (400).

4. A rigid contact network rapid grounding device according to claim 1, characterized in that: A second through hole is provided on the extension portion (120), a shaft (210) is connected to the lower end of the contact block (200), the shaft (210) is slidably disposed in the second through hole, and the first spring (220) is sleeved on the outside of the shaft (210).

5. The rigid contact network rapid grounding device according to claim 1, characterized in that: The locking member (300) is in an inverted J-shape and is wound around the outside of the clamping portion (110) and the main frame (100). The first end (301) of the locking member (300) is hinged to the outer end of the clamping portion (110). The middle part of the locking member (300) is connected to the unlocking member (400). The second end (302) of the locking member (300) is provided with a ratchet (303). The end of the contact block (200) connected to the ratchet (303) is provided with a fixed tooth (202). When the ratchet (303) and the fixed tooth (202) are engaged, the contact block (200) can only move in one direction away from the unlocking member (400).

6. A rigid contact network rapid grounding device according to claim 5, characterized in that: A window (102) for connecting the locking member (300) and the contact block (200) is provided on the side wall of the main frame (100), and a guide groove is also provided on the side wall of the main frame (100) above the window (102).

7. The rigid contact network rapid grounding device according to claim 5, characterized in that: The top end of the unlocking member (400) is fixedly connected to a Y-shaped connector (410), and the top end of the Y-shaped connector (410) is provided with a notch for the locking member (300) to extend into, and a pin is provided in the notch, and a strip hole (305) is provided on the locking member (300) at a position corresponding to the pin, and the pin passes through the strip hole (305).

8. The rigid contact network rapid grounding device according to claim 4, characterized in that: A shaft sleeve (230) covering the shaft body (210) is provided at a position of the extension portion (120) corresponding to the second through hole, and a disassembly joint (231) docking with the insulating telescopic rod (500) is further provided at the lower end of the shaft sleeve (230).

9. The rigid contact network rapid grounding device according to claim 1, characterized in that: An arc-shaped groove (201) adapted to the contact network is provided on the top surface of the contact block (200).

10. The rigid contact network rapid grounding device according to claim 3, characterized in that: The clamping portion (110) is provided with an axle seat (420) at a position corresponding to the first through hole. A cavity for accommodating the second spring (430) is constructed in the axle seat (420), and the unlocking member (400) passes through the axle seat (420).

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