A switchboard door plate safety grounding device
Patent Information
- Application Number
- CN202522579589.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-04
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-04
AI Technical Summary
The existing safety grounding device for the distribution cabinet door panel is fixed with bolts, which requires screwing the braided wire point by point. This results in low installation efficiency, poor installation and maintenance convenience, and the contact resistance is prone to exceed the standard in dusty and oily environments.
The design employs gear transmission and spring mechanism. The gear drives the connecting rod and protrusion to facilitate the installation and disassembly of the wiring. Combined with the vibration damping mechanism, the rubber block and spring absorb vibration energy to improve vibration resistance.
It enables convenient installation and removal of the grounding device, improves the installation efficiency and maintenance convenience of the equipment, reduces the impact of vibration on the structure, and extends the service life of the equipment.
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Figure CN224935188U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of switch board, especially to a switch board door plate safety grounding device. BACKGROUND
[0002] The switch board door plate safety grounding device is a core component of the switch board safety protection system, and its core function is to guide the dangerous current generated by the door plate due to internal leakage and induction to the ground, to avoid electric shock accidents when people touch the door plate, and to prevent static electricity accumulation from causing sparks.
[0003] In the prior art, when the internal components (such as circuit breakers and cables) of the switch board fail in insulation, the leakage current may be conducted to the door plate; the grounding device can build a low-resistance path to quickly guide the current to the ground, so that the voltage of the door plate to the ground is reduced to a safe range (usually ≤50V), to avoid electric shock when people touch it, but in scenarios such as mechanical processing workshops and coal mine underground, dust and oil stains are easy to accumulate on the contact surfaces of "door plate - bolt" and "terminal - cable", forming an insulation layer, resulting in excessive contact resistance, and now a dust cover, such as a transparent plastic flip cover, is installed at the grounding position, which is opened during operation and closed at ordinary times, but the traditional grounding device fixes the braided wire through a bolt, which requires screwing the screw point by point, resulting in low installation efficiency and poor installation and maintenance convenience. UTILITY MODEL CONTENTS
[0004] To make up for the above shortcomings, the utility model provides a switch board door plate safety grounding device, aiming to improve the problem of the traditional grounding device in the prior art, which fixes the braided wire through a bolt, requiring screwing the screw point by point, resulting in low installation efficiency and poor installation and maintenance convenience.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a switch board door plate safety grounding device, comprising a cabinet body, a protective door rotatably connected to the front side of the outer wall of the cabinet body, a fixing mechanism installed on the inner wall of the cabinet body and the protective door, the fixing mechanism being used for conveniently installing and dismounting parts, a plurality of damping mechanisms installed at equal intervals on the inner wall of the cabinet body and the protective door, the damping mechanisms being used for reducing the vibration influence on the structure; the fixing mechanism comprises a fixed plate, the fixed plate comprising a gear, the gear being rotatably connected to the upper part of the inner wall of the fixed plate, a connecting rod fixedly connected to the bottom end of the gear, a joint provided at the bottom of the fixed plate, a wire installed at the end of the joint, a limiting hole formed in the front and rear sides of the outer wall of the joint, and a transmission assembly installed on the rear side of the outer wall of the fixed plate.
[0006] Further description of the above technical scheme: The transmission assembly comprises a slide column, the inner wall of the slide column is fixedly connected with a fixed rod, the outer wall of the slide column is provided with a spring one, the tail end of the slide column is fixedly connected with a rack, and the rack is in meshing connection with a gear.
[0007] As a further description of the above technical scheme: The outer wall of the connecting rod is screw-connected with a protruding block in the lower part, the inner wall of the slide block is slidingly connected with a plurality of slide blocks equidistantly arranged on the right side of the inner wall of the fixed plate, the protruding block is slidingly connected with the inner wall of the slide block, the bottom of the slide block is fixedly connected with a clamping plate, the outer wall of the clamping plate is fixedly connected with a limiting block, and the limiting block is slidingly connected with the inner wall of a limiting hole.
[0008] As a further description of the above technical scheme: The damping mechanism comprises a fixed frame, the inner wall of the fixed frame is slidingly connected with a slide rod, and the outer wall of the slide rod is provided with a spring two.
[0009] As a further description of the above technical scheme: The bottom end of the slide rod is fixedly connected with a limiting frame, and the inner wall of the limiting frame is rotatably connected with a rubber block.
[0010] As a further description of the above technical scheme: The bottom of the fixed frame is rotatably connected with a connecting plate, and the tail end of the connecting plate is rotatably connected with the outer wall of the limiting frame in the lower part.
[0011] As a further description of the above technical scheme: The bottom of the cabinet body is fixedly connected with a base at four corners.
[0012] As a further description of the above technical scheme: The outer wall of the protective door is fixedly connected with a handle on the front side.
[0013] The utility model has the advantages of the following beneficial effects: 1. In the utility model, when installing the joint, first pull the slide post, the slide post drives the fixed rod of outer wall to slide outwards and compresses spring one, the slide post is also driven to move the rack simultaneously, the rack drives the gear, makes the gear drive the connecting rod to rotate in the fixed plate, the connecting rod drives the protruding block of its outer wall, makes the protruding block move downwards in the fixed plate, the protruding block compresses the sliding block, the sliding block drives the clamping plate to slide outwards, the one end of joint is tightly attached to the inner wall of cabinet and protective door, then loosen the slide post, spring one of slide post outer wall will rebound and push out the fixed rod, the fixed rod pushes the slide post and the rack to move, the rack makes the gear rotate, makes the protruding block move upwards, the protruding block pulls the sliding block and makes the sliding block slide inwards, makes the limiting block of clamping plate outer wall to be clamped into the limiting hole of joint outer wall, forms the stable connection, convenient operation, it is convenient to install and dismount wiring, improves installation and maintenance convenience.
[0014] 2. In the utility model, when the protective door is opened and closed for a long time and in the transportation process, vibration will be generated, and the vibration is transmitted to the fixed plate through the cabinet and the protective door, so that the fixed plate hits the rubber block, the rubber block pushes the limiting frame, and the limiting frame pulls the connecting plate, so that the connecting plate rotates along the fixed frame to prevent the limiting frame from being dislocated, and the limiting frame moves to push the slide rod to slide in the fixed frame, and the limiting frame will compress spring two, and spring two will be elastically deformed, and the vibration energy is absorbed and buffered through the contraction of spring two, the vibration frequency of the fixed plate is reduced, the anti-vibration ability of the structure is further improved, and the service life of the equipment is prolonged. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 A perspective view of a safety grounding device for a power distribution cabinet door plate is provided for the utility model; Figure 2 An internal structure schematic view of a safety grounding device for a power distribution cabinet door plate is provided for the utility model; Figure 3 A structure split view of a safety grounding device for a power distribution cabinet door plate is provided for the utility model; Figure 4 A partial structure split view of a safety grounding device for a power distribution cabinet door plate is provided for the utility model; Figure 5 A partial structure schematic view of a safety grounding device for a power distribution cabinet door plate is provided for the utility model.
[0016] Legend: 1. Cabinet body; 2. Protective door; 3. Fixing mechanism; 301. Fixing plate; 302. Gear; 303. Connecting rod; 304. Protrusion; 305. Sliding block; 306. Limiting block; 307. Clamping plate; 308. Limiting hole; 309. Connector; 310. Transmission assembly; 3101. Spring 1; 3102. Fixing rod; 3103. Sliding column; 3104. Rack; 4. Vibration damping mechanism; 401. Sliding rod; 402. Spring 2; 403. Fixing frame; 404. Connecting plate; 405. Rubber block; 406. Limiting frame; 5. Base; 6. Handle; 7. Wiring. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Reference Figure 2 , Figure 3 and Figure 4 This utility model provides an embodiment of a power distribution cabinet door panel safety grounding device, including a cabinet body 1. A protective door 2 is rotatably connected to the front of the outer wall of the cabinet body 1. Fixing mechanisms 3 are installed on the inner walls of both the cabinet body 1 and the protective door 2. The fixing mechanisms 3 are used to facilitate the installation and disassembly of components. Multiple vibration damping mechanisms 4 are equidistantly installed on the inner walls of both the cabinet body 1 and the protective door 2. The vibration damping mechanisms 4 are used to reduce the impact of vibration on the structure. The fixing mechanism 3 includes a fixing plate 301, which includes a gear 302. The gear 302 is rotatably connected to the upper part of the inner wall of the fixing plate 301. A connecting rod 303 is fixedly connected to the bottom end of the gear 302. A connector 309 is provided at the bottom of the fixing plate 301. A wiring 7 is installed at the end of the connector 309. Limiting holes 308 are opened on the front and rear sides of the outer wall of the connector 309. A transmission assembly 310 is installed on the rear side of the outer wall of 01. The transmission assembly 310 includes a slide column 3103, which is slidably connected to the rear side of the inner wall of the fixed plate 301. A fixed rod 3102 is fixedly connected to the inner wall of the slide column 3103. A spring 3101 is installed on the outer wall of the slide column 3103. A rack 3104 is fixedly connected to the end of the slide column 3103. The rack 3104 meshes with the gear 302. A protrusion 304 is threadedly connected to the lower middle part of the outer wall of the connecting rod 303. Multiple sliders 305 are equidistantly slidably connected to the right side of the inner wall of the fixed plate 301. The protrusion 304 is slidably connected to the inner wall of the slider 305. A clamping plate 307 is fixedly connected to the bottom of the slider 305. A limiting block 306 is fixedly connected to the outer wall of the clamping plate 307. The limiting block 306 is slidably connected to the inner wall of the limiting hole 308. Specifically, when installing connector 309, first pull the sliding column 3103. The sliding column 3103 drives the fixing rod 3102 on the outer wall to slide outward and compress the spring 3101. At the same time, the sliding column 3103 also drives the rack 3104 to move. The rack 3104 drives the gear 302, which in turn drives the connecting rod 303 to rotate within the fixing plate 301. The connecting rod 303 drives the protrusion 304 on its outer wall, causing the protrusion 304 to move downward within the fixing plate 301. The protrusion 304 compresses the slider 305, which in turn drives the clamping plate 307 to slide outward, thus installing connector 309. The end is pressed tightly against the inner wall of the cabinet 1 and the protective door 2. Then, the sliding column 3103 is released. The spring 3101 on the outer wall of the sliding column 3103 will rebound and push out the fixing rod 3102. The fixing rod 3102 pushes the sliding column 3103 and the rack 3104 to move. The rack 3104 makes the gear 302 rotate, causing the protrusion 304 to move upward. The protrusion 304 pulls the slider 305 to slide inward, so that the limiting block 306 on the outer wall of the clamp 307 is engaged in the limiting hole 308 on the outer wall of the connector 309, forming a stable connection. The operation is convenient, and it is easy to install and disassemble the wiring 7, which improves the convenience of installation and maintenance.
[0019] Reference Figure 2 , Figure 3 and Figure 5 The vibration damping mechanism 4 includes a fixed frame 403, which is fixedly connected at equal intervals to the inner walls of the cabinet 1 and the protective door 2. A slide rod 401 is slidably connected to the inner wall of the fixed frame 403. A spring 402 is installed on the outer wall of the slide rod 401. A limit frame 406 is fixedly connected to the bottom end of the slide rod 401. A rubber block 405 is rotatably connected to the inner wall of the limit frame 406. A connecting plate 404 is rotatably connected to the bottom of the fixed frame 403. The end of the connecting plate 404 is rotatably connected to the lower middle part of the outer wall of the limit frame 406. Specifically, the protective door 2 will vibrate during long-term opening and closing, as well as during transportation. This vibration is transmitted through the cabinet 1 and the protective door 2 to the fixed plate 301, causing the fixed plate 301 to impact the rubber block 405. The rubber block 405 then pushes the limit frame 406, which in turn pulls the connecting plate 404, causing the connecting plate 404 to rotate along the fixed frame 403 to prevent the limit frame 406 from becoming misaligned. As the limit frame 406 moves, it pushes the slide rod 401 to slide within the fixed frame 403. At the same time, the limit frame 406 compresses the second spring 402, causing the second spring 402 to undergo elastic deformation. The contraction of the second spring 402 absorbs and buffers the vibration energy, reducing the vibration frequency of the fixed plate 301, further improving the structure's vibration resistance and extending the equipment's service life.
[0020] Reference Figure 1 , Figure 2 and Figure 3 A base 5 is fixedly connected to the four corners of the bottom of the cabinet 1, and a handle 6 is fixedly connected to the front side of the outer wall of the protective door 2. Specifically, the base 5 at the corner can evenly distribute the weight of the cabinet 1 to the four support points at the bottom, preventing the cabinet 1 from deforming due to excessive force at a single point. The base 5 keeps a certain distance between the bottom of the cabinet 1 and the ground, preventing the bottom of the cabinet 1 from directly contacting ground moisture, water accumulation and corrosive liquids spilled on the ground. When opening the door, the hand can easily pull the protective door 2 by holding the handle 6. When closing the door, the closing force of the protective door 2 can be precisely controlled by the handle 6, avoiding deformation of the protective door 2 and scratches on the paint surface caused by directly pushing and pulling the protective door 2 due to the lack of a force point.
[0021] Working principle: When installing connector 309, first pull the sliding column 3103. The sliding column 3103 drives the fixing rod 3102 on the outer wall to slide outward and compress the spring 3101. At the same time, the sliding column 3103 also drives the rack 3104 to move. The rack 3104 drives the gear 302, which in turn drives the connecting rod 303 to rotate within the fixing plate 301. The connecting rod 303 drives the protrusion 304 on its outer wall, causing the protrusion 304 to move downward within the fixing plate 301. The protrusion 304 compresses the slider 305, which in turn drives the clamping plate 307 to slide outward, thus installing connector 309. The end is pressed tightly against the inner wall of the cabinet 1 and the protective door 2. Then the sliding column 3103 is released. The spring 3101 on the outer wall of the sliding column 3103 will rebound and push out the fixing rod 3102. The fixing rod 3102 pushes the sliding column 3103 and the rack 3104 to move. The rack 3104 makes the gear 302 rotate, causing the protrusion 304 to move upward. The protrusion 304 pulls the slider 305 to slide inward, so that the limiting block 306 on the outer wall of the clamping plate 307 is inserted into the limiting hole 308 on the outer wall of the connector 309, forming a stable connection. The operation is convenient and the wiring 7 is easy to install and remove, improving the convenience of installation and maintenance. Vibration occurs during the long-term opening and closing of the protective door 2 and during transportation. This vibration is transmitted through the cabinet 1 and the protective door 2 to the fixed plate 301, causing the fixed plate 301 to impact the rubber block 405. The rubber block 405 then pushes the limit frame 406, which in turn pulls the connecting plate 404, causing the connecting plate 404 to rotate along the fixed frame 403 to prevent the limit frame 406 from becoming misaligned. As the limit frame 406 moves, it pushes the slide rod 401 to slide within the fixed frame 403. At the same time, the limit frame 406 compresses the second spring 402, causing the second spring 402 to undergo elastic deformation. The contraction of the second spring 402 absorbs and buffers the vibration energy, reducing the vibration frequency of the fixed plate 301, further improving the structure's vibration resistance and extending the equipment's service life.
[0022] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A safety grounding device for a distribution cabinet door panel, comprising a cabinet body (1), characterized in that: The outer wall of the cabinet (1) is rotatably connected to a protective door (2). The inner walls of both the cabinet (1) and the protective door (2) are equipped with fixing mechanisms (3). The fixing mechanisms (3) are used to facilitate the installation and disassembly of components. The inner walls of both the cabinet (1) and the protective door (2) are equipped with multiple vibration damping mechanisms (4) at equal intervals. The vibration damping mechanisms (4) are used to reduce the impact of vibration on the structure. The fixing mechanism (3) includes a fixing plate (301), the fixing plate (301) includes a gear (302), the gear (302) is rotatably connected to the upper part of the inner wall of the fixing plate (301), the bottom end of the gear (302) is fixedly connected to a connecting rod (303), the bottom of the fixing plate (301) is provided with a connector (309), the end of the connector (309) is equipped with a wiring (7), the front and rear sides of the outer wall of the connector (309) are provided with limit holes (308), and the rear side of the outer wall of the fixing plate (301) is equipped with a transmission assembly (310).
2. The safety grounding device for a distribution cabinet door panel according to claim 1, characterized in that: The transmission assembly (310) includes a slide column (3103), which is slidably connected to the rear side of the inner wall of the fixed plate (301). A fixed rod (3102) is fixedly connected to the inner wall of the slide column (3103). A spring (3101) is installed on the outer wall of the slide column (3103). A rack (3104) is fixedly connected to the end of the slide column (3103). The rack (3104) meshes with the gear (302).
3. The safety grounding device for a distribution cabinet door panel according to claim 1, characterized in that: The lower part of the outer wall of the connecting rod (303) is threaded with a protrusion (304). Multiple sliders (305) are equidistantly slidably connected to the right side of the inner wall of the fixing plate (301). The protrusion (304) is slidably connected to the inner wall of the slider (305). A clamping plate (307) is fixedly connected to the bottom of the slider (305). A limiting block (306) is fixedly connected to the outer wall of the clamping plate (307). The limiting block (306) is slidably connected to the inner wall of the limiting hole (308).
4. The safety grounding device for a distribution cabinet door panel according to claim 1, characterized in that: The vibration damping mechanism (4) includes a fixed frame (403), which is fixedly connected at equal intervals to the inner walls of the cabinet (1) and the protective door (2). A slide rod (401) is slidably connected to the inner wall of the fixed frame (403), and a spring (402) is installed on the outer wall of the slide rod (401).
5. A safety grounding device for a distribution cabinet door panel according to claim 4, characterized in that: The bottom end of the slide bar (401) is fixedly connected to a limiting frame (406), and a rubber block (405) is rotatably connected to the inner wall of the limiting frame (406).
6. A safety grounding device for a distribution cabinet door panel according to claim 4, characterized in that: The bottom of the fixed frame (403) is rotatably connected to a connecting plate (404), and the end of the connecting plate (404) is rotatably connected to the lower part of the outer wall of the limiting frame (406).
7. A safety grounding device for a distribution cabinet door panel according to claim 1, characterized in that: The cabinet (1) has bases (5) fixedly connected to the four corners at the bottom.
8. A safety grounding device for a distribution cabinet door panel according to claim 1, characterized in that: A handle (6) is fixedly connected to the front side of the outer wall of the protective door (2).
