Rapid grounding device of low-voltage cabinet

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By designing a quick grounding device for low-voltage cabinets, using a sliding clamp base and clip structure, combined with a reversible movable splint and a driving grip, the operational difficulty and safety risks of grounding operations in a small space of low-voltage cabinets are solved. , achieving efficient and safe grounding operations.

CN119340693APending Publication Date: 2025-01-21GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD

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Patent Information

Application Number: CN202411495651.2
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2024-10-25
Publication Date: 2025-01-21

AI Technical Summary

Technical Problem

During the grounding operation in small spaces such as low-voltage cabinets, the operation is difficult, time-consuming and labor-intensive, and the operation safety risks are poor. Traditional grounding wire fixtures cannot adapt to the compact layout of small spaces, resulting in low grounding operation efficiency and high safety risks.

Method used

A quick grounding device for low-voltage cabinets is designed. It adopts a relatively sliding clamp base and a clamp piece structure. The clamp base includes a fixed clamp bracket and a reversible movable splint. The grip is driven to drive the clamp piece upward to realize the grounding component. clamped and grounded.

Benefits of technology

By reducing the clamping space and increasing the clamping force, this device significantly reduces the difficulty and time of operation, improves the efficiency and safety of grounding operations, and is suitable for grounding operations in small spaces.

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Abstract

The invention discloses a quick grounding device of a low-voltage cabinet, and relates to the field of power equipment. The rapid grounding device of the low-voltage cabinet comprises a clamping seat and a clamping piece which is vertically arranged in the clamping seat in a sliding mode, a driving holding piece is installed at the bottom of the clamping seat, the driving holding piece is in transmission connection with the clamping piece, and the clamping seat comprises a fixed clamping support and a movable clamping plate which is rotationally arranged on one side of the top end of the fixed clamping support. According to the quick grounding device of the low-voltage cabinet, the movable clamping plate is turned over, so that the first clamping plate is vertically upward, the first clamping plate is upwards inserted from one side of a to-be-grounded component, the second clamping plate abuts against the bottom of the to-be-grounded component, pushing is continued, and the first clamping plate is automatically turned over to cover the to-be-grounded component; at the moment, the clamping piece is driven to move upwards by driving the holding piece, so that the clamping piece and the first clamping plate are clamped on the upper and lower sides of the to-be-grounded component, grounding installation is completed, and the device is suitable for small space.

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Description

Technical Field

[0001] The invention relates to the technical field of electric power equipment, in particular to a quick grounding device for a low-voltage cabinet. Background Art

[0002] A grounding clamp is an auxiliary tool used to ground equipment in an electric power system. The metal clamp at the end of a long rod is used to clamp the part to be grounded, and then the metal clamp connects the wire to the ground for grounding.

[0003] With the improvement of the manufacturing process level of 0.4kV low-voltage switchgear, the cabinet space is reduced, and the busbar conductors in the cabinet are more compact. The traditional 0.4kV grounding wire clamp is large in size, the angle cannot be adjusted, and the tightening stroke is large, which brings risks such as long operation time and poor safety of dense space operations. It is no longer suitable for grounding operations in small spaces such as low-voltage cabinets. This inadaptability not only leads to longer operation time and reduced work efficiency, but also increases safety risks when working in dense spaces. At the same time, it also affects the normal maintenance and overhaul of power equipment, increases power outage time, and brings inconvenience and economic losses to users. Due to the compact layout and limited space between the conductors to be grounded, the clamp cannot be moved up, resulting in the inability to clamp. For this reason, a quick grounding device for a low-voltage cabinet is provided to solve the above problems. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a quick grounding device for a low-voltage cabinet, which solves the problems of difficult operation, time-consuming and labor-intensive operation, and poor operational safety risks during grounding operations in small spaces such as low-voltage cabinets.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a fast grounding device for a low-voltage cabinet, comprising a clamping seat and a clamping piece arranged to slide relative to each other, the clamping seat or the clamping piece is connected to a ground wire, a driving gripping piece is installed on one side of the clamping seat, and the driving gripping piece can drive the clamping piece to slide relative to the clamping seat, the clamping seat comprises a fixed clamping support and a movable clamping plate, the middle part of the movable clamping plate is hinged to the end of the fixed clamping support, the movable clamping plate comprises a first clamping plate extending to one side at the hinge, and a second clamping plate extending to the other side at the hinge, a clamping end face cooperating with the movable clamping plate is provided on one side of the clamping piece, the second clamping plate is located between the first clamping plate and the clamping end face, and the movable clamping plate can be flipped relative to the fixed clamping support to a first state or a second state;

[0006] When in the first state, a preset angle is formed between the first clamping plate and the clamping end face; when in the second state, the first clamping plate is parallel to the clamping end face, and the first clamping plate, the second clamping plate and the clamping end face enclose a clamping space, and the driving gripping member can drive the clamping plate to slide relative to the clamping seat to expand and contract the clamping space.

[0007] Preferably, a storage groove adapted to the second clamping plate is provided on one side of the top end of the fixed clamping bracket, a support shaft is fixedly connected to the inner top of the storage groove, and the middle part of the movable clamping plate is rotatably connected to the support shaft.

[0008] Preferably, the first clamping plate is perpendicular to the second clamping plate, and when in the second state, the bottom end of the second clamping plate abuts against the inner bottom of the storage groove.

[0009] Preferably, the driving gripping member comprises:

[0010] A holding tube fixed to the bottom of the fixing clamp;

[0011] The thread of the driving screw rod penetrates the fixed clamping bracket, and the driving screw rod is rotatably connected with the clamping piece.

[0012] Preferably, a threaded seat is fixedly provided at the bottom of the fixed clamp support, and the driving screw is threadedly connected in the threaded seat.

[0013] Preferably, the clip includes an L-shaped conductive clamp and a wiring connection portion integrally formed on the back of the L-shaped conductive clamp, the bottom of the L-shaped conductive clamp is integrally formed with an assembly portion, and the top end of the driving screw is rotatably connected to the assembly portion.

[0014] Preferably, the top end of the holding tube is fixedly mounted on the outer surface of the threaded seat by means of screws, and the bottom end of the holding tube is rotatably connected to a handle, which is connected to the driving screw.

[0015] Preferably, a mounting flange is fixedly mounted on the bottom end of the driving screw rod, and a long pipe is fixedly mounted between the handle and the mounting flange.

[0016] Preferably, an anti-slip sleeve is installed on the outer surface of the bottom end of the handle.

[0017] Preferably, a gripping portion is fixedly provided at the bottom end of the gripping tube, and the anti-slip sleeve is located outside the bottom end of the gripping portion.

[0018] The present invention discloses a quick grounding device for a low-voltage cabinet, which has the following beneficial effects: the device is modified by a traditional C-shaped clamp seat, and a rotatable movable clamp plate is arranged on the top of a fixed clamp support, the movable clamp plate includes a first clamp plate and a second clamp plate, before use, the movable clamp plate is turned over so that the first clamp plate is vertically upward, and the second clamp plate is horizontal, the first clamp plate is inserted upward from one side of a component to be grounded so that the second clamp plate abuts against the bottom of the component to be grounded, and the push is continued to rotate the movable clamp plate so that the second clamp plate enters the storage groove, and the first clamp plate is automatically turned over to cover the top of the component to be grounded, and the clamp plate is driven to move upward by driving the gripping member so that the clamp plate and the first clamp plate are clamped on the upper and lower sides of the component to be grounded, so that the grounding installation is completed, which is suitable for use in small spaces. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the overall state before clamping of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall clamping state of the present invention;

[0022] Figure 3 It is an exploded view of the overall internal structure of the present invention;

[0023] Figure 4 It is an exploded view of the internal structure of the clamping seat of the present invention.

[0024] In the figure: 1. clamping seat; 11. fixed clamping support; 12. movable clamping plate; 121. first clamping plate; 122. second clamping plate; 13. threaded seat; 14. storage groove; 15. support shaft; 2. clip; 21. L-shaped conductive clamping member; 22. wiring connection part; 23. assembly part; 3. driving gripping member; 31. gripping tube; 32. gripping part; 33. driving screw rod; 34. assembly flange; 35. long pipe fitting; 36. handle; 37. anti-slip sleeve. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] The embodiments of the present application provide a quick grounding device for a low-voltage cabinet, thereby solving the problems of difficult operation, time-consuming and labor-intensive operation, and poor safety risks during grounding operations in small spaces such as low-voltage cabinets.

[0027] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] The embodiment of the invention discloses a quick grounding device for a low-voltage cabinet.

[0029] According to the attached Figure 1-4 As shown, it includes a clamping seat 1 and a clamping piece 2 which are arranged to slide relative to each other, the clamping seat 1 or the clamping piece 2 is connected to the ground wire, a driving gripping member 3 is installed on one side of the clamping seat 1, the driving gripping member 3 is electrically insulated from the clamping seat 1 and the clamping piece 2, the driving gripping member 3 can drive the clamping piece 2 to slide relative to the clamping seat 1, the clamping seat 1 includes a fixed clamping support 11 and a movable clamping plate 12, the middle part of the movable clamping plate 12 is hinged to the end of the fixed clamping support 11, the movable clamping plate 12 includes a first clamping plate 121 extending to one side at the hinge, and a second clamping plate 122 extending to the other side at the hinge. In this embodiment, the first clamping plate 121 is perpendicular to the second clamping plate 122, a clamping end face which cooperates with the movable clamping plate 12 is provided on one side of the clamping piece 2, the second clamping plate 122 is located between the first clamping plate 121 and the clamping end face, and the movable clamping plate 12 can be flipped relative to the fixed clamping support 11 to the first state or the second state;

[0030] When in the first state, a preset angle is formed between the first clamping plate 121 and the clamping end face. In the present embodiment, the preset angle is 90°. When in the second state, the first clamping plate 121 is parallel to the clamping end face, and the first clamping plate 121, the second clamping plate 122 and the clamping end face enclose a clamping space. The driving gripping member 3 can drive the clamping piece 2 to slide relative to the clamping seat 1 to expand and contract the clamping space.

[0031] A storage groove 14 adapted to the second clamping plate 122 is provided on one side of the top end of the fixed clamping bracket 11, and a support shaft 15 is fixedly connected to the inner top of the storage groove 14. The middle part of the movable clamping plate 12 is rotatably connected to the support shaft 15. When in the second state, the bottom end of the second clamping plate 122 is against the inner bottom of the storage groove 14.

[0032] Before use, flip the movable clamp 12 so that the first clamp 121 is vertically facing upwards, and the second clamp 122 is horizontal. Insert the first clamp 121 from one side of the component to be grounded so that the second clamp 122 is against the side of the component to be grounded. Continue to push to rotate the movable clamp 12 so that the second clamp 122 enters the storage groove 14. At this time, the first clamp 121 automatically flips over to cover the other side of the component to be grounded. At this time, the gripping member 3 is driven to drive the clip 2 upward, so that the clip 2 and the first clamp 121 are clamped on both sides of the component to be grounded, completing the grounding installation, which is suitable for use in small spaces.

[0033] The driving gripping member 3 includes a gripping tube 31 and a driving screw 33. The gripping tube 31 is fixed to the bottom of the fixed clamping support 11; the driving screw 33 is threadedly penetrated through the fixed clamping support 11, and the driving screw 33 is rotatably connected to the clamping piece 2. A threaded seat 13 is fixedly provided at the bottom of the fixed clamping support 11, and the driving screw 33 is threadedly connected to the threaded seat 13. The clamping piece 2 includes an L-shaped conductive clamping member 21 and a wiring connection portion 22 integrally formed on the back of the L-shaped conductive clamping member 21. The wiring connection portion 22 is used to connect the ground wire. The bottom of the L-shaped conductive clamping member 21 is integrally formed with an assembly portion 23. The top end of the driving screw 33 is rotatably connected to the assembly portion 23. The top end of the gripping tube 31 is fixedly mounted on the outer surface of the threaded seat 13 by screws. The bottom end of the gripping tube 31 is rotatably connected to a handle 36, and the handle 36 is connected to the driving screw 33.

[0034] When in use, one hand holds the bottom end of the holding tube 31 and the other hand rotates the handle 36. At this time, the fixed clamping support 11 remains stationary, and the handle 36 drives the driving screw 33 to rotate. The driving screw 33 moves upward in a spiral inside the threaded seat 13, thereby driving the clip 2 to slide toward the first clamping plate (122) in the fixed clamping support 11 to achieve clamping.

[0035] A mounting flange 34 is fixedly mounted on the bottom end of the driving screw rod 33 , and a long pipe 35 is fixedly mounted between the handle 36 and the mounting flange 34 , so as to facilitate overall assembly.

[0036] An anti-skid sleeve 37 is installed on the outer surface of the bottom end of the handle 36, and a gripping portion 32 is fixedly provided at the bottom end of the gripping tube 31. The anti-skid sleeve 37 is located outside the bottom end of the gripping portion 32 to prevent slipping during use.

[0037] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A quick grounding device for a low-voltage cabinet, comprising a clamping seat (1) and a clamping piece (2) arranged to slide relative to each other, the clamping seat (1) or the clamping piece (2) being connected to a ground wire, a driving gripping member (3) being installed on one side of the clamping seat (1), the driving gripping member (3) being able to drive the clamping piece (2) to slide relative to the clamping seat (1), characterized in that: The clamping seat (1) comprises a fixed clamping support (11) and a movable clamping plate (12), the middle part of the movable clamping plate (12) is hinged to the end of the fixed clamping support (11), the movable clamping plate (12) comprises a first clamping plate (121) extending to one side at the hinge, and a second clamping plate (122) extending to the other side at the hinge, one side of the clamping piece (2) is provided with a clamping end face matching with the movable clamping plate (12), the second clamping plate (122) is located between the first clamping plate (121) and the clamping end face, and the movable clamping plate (12) can be flipped relative to the fixed clamping support (11) to a first state or a second state; When in the first state, a preset angle is formed between the first clamping plate (121) and the clamping end surface; when in the second state, the first clamping plate (121) is parallel to the clamping end surface, and the first clamping plate (121), the second clamping plate (122) and the clamping end surface enclose a clamping space, and the driving gripping member (3) can drive the clamping piece (2) to slide relative to the clamping seat (1) to expand and contract the clamping space.

2. The rapid grounding device for a low-voltage cabinet according to claim 1, characterized in that: A storage groove (14) adapted to the second clamping plate (122) is provided on one side of the top end of the fixed clamping bracket (11); a support shaft (15) is fixedly connected to the inner top of the storage groove (14); and the middle part of the movable clamping plate (12) is rotatably connected to the support shaft (15).

3. The rapid grounding device for a low-voltage cabinet according to claim 2 is characterized in that: The first clamping plate (121) is perpendicular to the second clamping plate (122), and when in the second state, the bottom end of the second clamping plate (122) abuts against the inner bottom of the storage groove (14).

4. The rapid grounding device for a low-voltage cabinet according to claim 1 is characterized in that: The driving gripping member (3) comprises: A holding tube (31) fixed to the bottom of the fixing bracket (11); The thread of the driving screw rod (33) penetrates through the fixed clamping bracket (11), and the driving screw rod (33) is rotatably connected with the clamping piece (2).

5. The rapid grounding device for a low-voltage cabinet according to claim 4 is characterized in that: A threaded seat (13) is fixedly provided at the bottom of the fixed clamping bracket (11), and the driving screw rod (33) is threadedly connected in the threaded seat (13).

6. The rapid grounding device for a low-voltage cabinet according to claim 4, characterized in that: The clip (2) comprises an L-shaped conductive clamp (21) and a wiring connection portion (22) integrally formed on the back of the L-shaped conductive clamp (21); a mounting portion (23) is integrally formed on the bottom of the L-shaped conductive clamp (21); and the top end of the driving screw rod (33) is rotatably connected to the mounting portion (23).

7. The rapid grounding device for a low-voltage cabinet according to claim 5, characterized in that: The top end of the holding tube (31) is fixedly mounted on the outer surface of the threaded seat (13) by means of screws, and the bottom end of the holding tube (31) is rotatably connected to a handle (36), which is connected to the driving screw rod (33).

8. The rapid grounding device for a low-voltage cabinet according to claim 7, characterized in that: A mounting flange (34) is fixedly mounted on the bottom end of the driving screw rod (33), and a long pipe (35) is fixedly mounted between the handle (36) and the mounting flange (34).

9. The rapid grounding device for a low voltage cabinet according to claim 7, characterized in that: An anti-slip sleeve (37) is installed on the outer surface of the bottom end of the handle (36).

10. A fast grounding device for a low voltage cabinet according to claim 9, characterized in that: A gripping portion (32) is fixedly provided at the bottom end of the gripping tube (31), and the anti-slip sleeve (37) is located outside the bottom end of the gripping portion (32).