Grounding anti-creeping device of test equipment

Abstract

The utility model relates to the technical field of grounding devices, and discloses a test equipment grounding anti-creeping device which comprises a machine body, a placing box is fixedly connected to the rear end of the left side of the inner bottom wall of the machine body, a drying agent is arranged in the placing box, and a square groove is formed in the periphery of the rear side of the outer wall of the machine body. A plurality of telescopic rods are fixedly connected to the front side of the inner wall of the square groove at equal intervals, springs are arranged on the outer walls of the telescopic rods, a fixing plate is fixedly connected to the tail ends of the telescopic rods, a sealing gasket is installed on the rear side of the outer wall of the fixing plate, and a back plate is arranged on the rear side of the outer wall of the machine body. According to the utility model, the bolt I penetrates through the threaded hole to fix the back plate, the back plate extrudes the sealing gasket to enable the telescopic rod and the spring to act, the elasticity of the spring ensures that the sealing gasket is tightly attached to the back plate and prevents water vapor and dust from invading, and meanwhile, the drying agent in the placing box absorbs moisture in air, reduces humidity, protects an internal circuit from being damaged by moisture, and realizes a moisture-proof function.

Description

Technical Field

[0001] This utility model relates to the field of grounding device technology, and in particular to a grounding and leakage prevention device for testing equipment. Background Technology

[0002] The grounding leakage protection device for test equipment is an electrical safety device used to detect and prevent leakage of test equipment due to grounding faults, ensuring the safe operation of the equipment and protecting personnel from the risk of electric shock. When an abnormal leakage current or grounding fault is detected, it can quickly issue an alarm signal to avoid electric shock accidents and electrical fire hazards caused by leakage, and ensure the safe and reliable operation of the electrical system in which the test equipment is located.

[0003] Existing grounding and leakage protection devices for testing equipment can initially locate leakage faults using intelligent algorithms and monitoring data, helping maintenance personnel quickly and accurately find the problem, shortening troubleshooting and repair time, and improving equipment availability. However, aging, deformation, or loose installation of sealing strips at the joints between components of the device casing, cable inlets, and inspection ports allows moisture to easily seep into the device. After long-term use, the sealing strips harden, crack, and lose elasticity, failing to provide a proper seal. Current technologies employ double-layer sealing strips or labyrinth seal structures to improve sealing performance. For example, grooves are designed at the joints of the casing, and double-layer sealing strips are installed to enhance the sealing effect. For cable inlets, waterproof connectors are used, and waterproof sealant is filled inside the connectors. However, these simple planar seals do not consider the vibration and displacement generated during equipment operation. Under vibration, gaps appear on the sealing surface, leading to seal failure. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a grounding and leakage prevention device for testing equipment, which aims to improve the problem of sealing failure caused by vibration creating gaps in the sealing surface in the prior art.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a grounding and leakage prevention device for testing equipment, comprising a body, a placement box fixedly connected to the rear left side of the inner bottom wall of the body, a desiccant being placed inside the placement box, a square groove being formed around the rear side of the outer wall of the body, a plurality of telescopic rods being fixedly connected at equal intervals to the front side of the inner wall of the square groove, a spring being provided on the outer wall of the telescopic rod, a fixing plate being fixedly connected to the end of the telescopic rod, a sealing gasket being installed on the rear side of the outer wall of the fixing plate, a back plate being provided on the rear side of the outer wall of the body, threaded holes being formed at the four corners of the back plate and the rear side of the outer wall of the body, a bolt being threadedly connected to the inner wall of the threaded hole, and a filter mechanism being provided on the right side of the outer wall of the body, the filter mechanism being used to prevent water vapor and dust from entering the body.

[0006] As a further description of the above technical solution:

[0007] The filtering mechanism includes a filter screen, which is disposed on the right side of the outer wall of the machine body. A slot is provided on the right side of the outer wall of the machine body, and the filter screen engages with the slot. Sliding grooves are provided at both the front and rear ends of the right side of the outer wall of the machine body. A locking block is slidably connected to the inner wall of the sliding groove, and the locking block engages with the filter screen. A circular groove is provided on the right side of the inner wall of the sliding groove and the right side of the outer wall of the locking block. A pin is provided on the inner wall of the circular groove, and the circular groove engages with the pin.

[0008] As a further description of the above technical solution:

[0009] A display screen is installed on the left side of the front wall of the machine body.

[0010] As a further description of the above technical solution:

[0011] A switch is installed on the lower right side of the front side of the outer wall of the machine body, and an indicator light is installed on the lower right side of the front side of the outer wall of the machine body.

[0012] As a further description of the above technical solution:

[0013] Multiple data interfaces are equidistantly installed on the right side of the outer wall of the machine body.

[0014] As a further description of the above technical solution:

[0015] Rubber blocks are provided at the four corners of the outer wall of the machine body, and multiple bolts are threaded at equal intervals on the outer wall of the rubber blocks.

[0016] As a further description of the above technical solution:

[0017] Multiple USB ports are equidistantly installed on the lower right side of the front side of the outer wall of the machine body.

[0018] As a further description of the above technical solution:

[0019] A handle is fixedly connected to the middle of the top wall of the machine body, and an anti-slip sleeve is installed on the outer wall of the handle.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, a bolt is used to fix the back plate through the threaded hole. The back plate squeezes the sealing gasket, causing the telescopic rod and spring to move. The spring force ensures that the sealing gasket is tightly attached to the back plate, preventing moisture and dust from entering. At the same time, the desiccant placed in the box absorbs moisture in the air, reduces humidity, protects the internal circuit from moisture damage, and achieves a moisture-proof function.

[0022] 2. In this utility model, the filter screen is initially positioned and installed by engaging the slot of the body. After the locking block slides to the position where it engages with the filter screen, it further fixes the filter screen to prevent it from shaking or falling off. The pin is inserted into the round groove to lock the locking block and the sliding groove, ensuring that the filter screen is fixed in position, blocking water vapor and dust, and protecting the internal electrical components. Attached Figure Description

[0023] Figure 1 This is a front view of the grounding and leakage prevention device for testing equipment proposed in this utility model;

[0024] Figure 2 This is a perspective view of the grounding and leakage prevention device for the testing equipment proposed in this utility model;

[0025] Figure 3 This is a partial structural exploded view of the grounding and leakage prevention device for testing equipment proposed in this utility model;

[0026] Figure 4 This is a partial exploded view of the grounding and leakage prevention device for testing equipment proposed in this utility model;

[0027] Figure 5 This is a schematic diagram of the filter mechanism of the grounding and leakage prevention device for the test equipment proposed in this utility model.

[0028] Legend:

[0029] 1. Body; 2. Filtering mechanism; 201. Filter screen; 202. Slot; 203. Slide groove; 204. Locking block; 205. Circular groove; 206. Pin; 3. Placement box; 4. Desiccant; 5. Square groove; 6. Telescopic rod; 7. Spring; 8. Fixing plate; 9. Sealing gasket; 10. Threaded hole; 11. Back plate; 12. Bolt 1; 13. Display screen; 14. Data interface; 15. USB interface; 16. Switch; 17. Indicator light; 18. Rubber block; 19. Bolt 2; 20. Handle; 21. Anti-slip sleeve. Detailed Implementation

[0030] 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.

[0031] Reference Figure 2 , Figure 3 and Figure 4This utility model provides an embodiment of a grounding and leakage prevention device for testing equipment, comprising a body 1. A placement box 3 is fixedly connected to the rear left side of the inner bottom wall of the body 1. A desiccant 4 is placed inside the placement box 3 to prevent the equipment from being damaged by moisture and to provide moisture protection. A square groove 5 is formed around the rear side of the outer wall of the body 1. Multiple telescopic rods 6 are fixedly connected at equal intervals to the front side of the inner wall of the square groove 5. A spring 7 is provided on the outer wall of the telescopic rod 6. A fixing plate 8 is fixedly connected to the end of the telescopic rod 6. The elastic force generated by the spring 7 is transmitted to the fixing plate 8 through the telescopic rod 6. A sealing gasket 9 is installed on the rear side of the outer wall of the fixing plate 8 to prevent... External moisture and dust enter the interior of the machine body 1. A back plate 11 is provided on the rear side of the outer wall of the machine body 1. Threaded holes 10 are provided at the four corners of the back plate 11 and the rear side of the outer wall of the machine body 1. Bolts 12 are threadedly connected to the inner wall of the threaded holes 10. A filter mechanism 2 is provided on the right side of the outer wall of the machine body 1. The filter mechanism 2 is used to block moisture and dust from entering the machine body 1. A display screen 13 is installed on the left side of the front side of the outer wall of the machine body 1. The display screen 13 is used to display relevant information about the grounding and leakage prevention device of the test equipment. Multiple data interfaces 14 are installed at equal intervals on the right side of the front side of the outer wall of the machine body 1. The data interfaces 14 are used to detect whether there is leakage current in the circuit.

[0032] Specifically, during the installation of the back plate 11 onto the body 1, the back plate 11 is fixed by bolt 12 passing through the threaded hole 10. This operation causes the back plate 11 to apply pressure to the fixing plate 8 on the front side of the sealing gasket 9, which in turn causes the telescopic rod 6 to retract and the spring 7 to be compressed. The elastic force generated by the spring 7 is transmitted to the fixing plate 8 through the telescopic rod 6, ensuring that the sealing gasket 9 on the fixing plate 8 is tightly fitted to the back plate 11, effectively preventing external moisture and dust from entering the body 1, thereby protecting the internal circuits and components from damage. At the same time, the desiccant 4 placed in the placement box 3 can absorb moisture in the air inside the body 1, reduce the internal humidity, and prevent the equipment from being damaged by moisture, thus performing its moisture-proof function. A filter mechanism 2 is provided on the right side of the outer wall of the body 1. The filter mechanism 2 is used to block moisture and dust from entering the body 1. The display screen 13 is used to display relevant information about the grounding and leakage prevention device of the test equipment. The data interface 14 is used to detect whether there is leakage current in the circuit.

[0033] Reference Figure 2 and Figure 5The filter mechanism 2 includes a filter screen 201, which is located on the right side of the outer wall of the body 1. A slot 202 is provided on the right side of the outer wall of the body 1, and the filter screen 201 engages with the slot 202. The filter screen 201 is initially positioned and installed by engaging with the slot 202 on the right side of the body 1. Slide grooves 203 are provided at both the front and rear ends of the right side of the outer wall of the body 1. A locking block 204 is slidably connected to the inner wall of the slide groove 203. The locking block 204 engages with the filter screen 201. When the locking block 204 slides along the slide groove 203 to the position where it engages with the filter screen 201, the locking block 204 further fixes the filter screen 201. Slide grooves 203 are provided on the right side of the inner wall of the slide groove 203 and the right side of the outer wall of the locking block 204. There is a circular groove 205, and a pin 206 is provided on the inner wall of the circular groove 205. The circular groove 205 and the pin 206 are engaged. When the pin 206 is inserted into the circular groove 205, the locking block 204 is fixed relative to the sliding groove 203. Rubber blocks 18 are provided at the four corners of the outer wall of the machine body 1. The rubber blocks 18 can absorb and disperse the impact force, reduce the damage to the machine body 1, protect the precision components and circuits inside the equipment, prevent the loosening, damage or poor contact of components caused by vibration, and improve the stability and reliability of the equipment. Multiple bolts 19 are equidistantly threaded on the outer wall of the rubber blocks 18. The bolts 19 fix the rubber blocks 18 at the corners of the machine body 1, making installation and disassembly convenient.

[0034] Specifically, the filter screen 201 is initially positioned and installed by the slot 202 on the right side of the body 1. When the locking block 204 slides along the slide groove 203 to the position where it engages with the filter screen 201, the locking block 204 further fixes the filter screen 201 to ensure that it will not shake or fall off during use. Then, the pin 206 is inserted into the round groove 205 to fix the locking block 204 relative to the slide groove 203, thereby locking the position of the filter screen 201, effectively blocking the intrusion of water vapor and dust, and protecting the electrical components inside the equipment. The rubber block 18 can absorb and disperse the impact force, reduce damage to the body 1, protect the precision parts and circuits inside the equipment, prevent the loosening, damage or poor contact of parts caused by vibration, and improve the stability and reliability of the equipment. Bolt 2 19 fixes the rubber block 18 at the corner of the body 1, making installation and disassembly convenient.

[0035] Reference Figure 1 and Figure 2A switch 16 is installed on the lower right side of the front side of the outer wall of the main body 1. The switch 16 is used to control the opening and closing of the grounding and leakage prevention device of the test equipment. An indicator light 17 is installed on the lower right side of the front side of the outer wall of the main body 1. The indicator light 17 is used to indicate the working status of the equipment. Multiple USB ports 15 are installed at equal intervals on the lower right side of the front side of the outer wall of the main body 1. The USB ports 15 are used to connect external devices. A handle 20 is fixedly connected to the middle of the top wall of the main body 1. The handle 20 is used to facilitate the operator to carry or move the test equipment. An anti-slip sleeve 21 is installed on the outer wall of the handle 20. The anti-slip sleeve 21 is used to prevent the hand from slipping off the handle 20 due to sweat or other reasons during the handling process, thereby improving the safety and stability of the handling and making it more comfortable for the operator to hold.

[0036] Specifically, switch 16 is used to control the opening and closing of the grounding and leakage protection device of the test equipment, indicator light 17 is used to indicate the working status of the equipment, USB interface 15 is used to connect external devices, handle 20 is used to facilitate the operator to carry or move the test equipment, and anti-slip sleeve 21 is used to prevent the hand from slipping off the handle 20 due to sweating or other reasons during the handling process, thereby improving the safety and stability of the handling, and also making it more comfortable for the operator to hold.

[0037] Working principle: When the back plate 11 is installed on the body 1, the bolt 12 passes through the threaded hole 10 to fix the back plate 11. During this process, the back plate 11 squeezes the fixing plate 8 in front of the sealing gasket 9, causing the telescopic rod 6 to retract and the spring 7 to compress. The elastic force generated by the spring 7 is transmitted to the fixing plate 8 through the telescopic rod 6, so that the sealing gasket 9 on the fixing plate 8 is tightly attached to the back plate 11, thereby preventing external moisture and dust from entering the body 1 and protecting the internal circuits and components. The desiccant 4 placed in the box 3 can absorb the moisture in the air inside the body 1, reduce the internal humidity, prevent the equipment from being damaged by moisture, and play a moisture-proof role.

[0038] The filter screen 201 is initially positioned and installed by engaging with the slot 202 on the right side of the body 1. When the locking block 204 slides along the slide groove 203 to the position where it engages with the filter screen 201, the locking block 204 further fixes the filter screen 201 to prevent it from shaking or falling off during use. The pin 206 is inserted into the round groove 205 to fix the locking block 204 and the slide groove 203 relative to each other, thereby locking the position of the filter screen 201, blocking moisture and dust from entering, and protecting the electrical components inside the equipment.

[0039] 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 grounding and leakage prevention device for testing equipment, comprising a body (1), characterized in that: A placement box (3) is fixedly connected to the rear left side of the inner bottom wall of the machine body (1). A desiccant (4) is placed inside the placement box (3). A square groove (5) is opened around the rear side of the outer wall of the machine body (1). Multiple telescopic rods (6) are fixedly connected at equal intervals to the front side of the inner wall of the square groove (5). A spring (7) is provided on the outer wall of the telescopic rod (6). A fixing plate (8) is fixedly connected to the end of the telescopic rod (6). A sealing gasket (9) is installed on the rear side of the outer wall of the fixing plate (8). A back plate (11) is provided on the rear side of the outer wall of the machine body (1). Threaded holes (10) are opened at the four corners of the back plate (11) and the rear side of the outer wall of the machine body (1). A bolt (12) is threadedly connected to the inner wall of the threaded hole (10). A filter mechanism (2) is provided on the right side of the outer wall of the machine body (1). The filter mechanism (2) is used to block water vapor and dust from entering the machine body (1).

2. The grounding and leakage prevention device for testing equipment according to claim 1, characterized in that: The filtering mechanism (2) includes a filter screen (201), which is located on the right side of the outer wall of the body (1). A slot (202) is provided on the right side of the outer wall of the body (1), and the filter screen (201) engages with the slot (202). Sliding grooves (203) are provided at both the front and rear ends of the right side of the outer wall of the body (1). A locking block (204) is slidably connected to the inner wall of the sliding groove (203), and the locking block (204) engages with the filter screen (201). A circular groove (205) is provided on the right side of the inner wall of the sliding groove (203) and the right side of the outer wall of the locking block (204). A pin (206) is provided on the inner wall of the circular groove (205), and the circular groove (205) engages with the pin (206).

3. The grounding and leakage prevention device for testing equipment according to claim 1, characterized in that: A display screen (13) is installed on the left side of the front wall of the outer wall of the body (1).

4. The grounding and leakage prevention device for testing equipment according to claim 1, characterized in that: A switch (16) is installed on the right end of the lower middle part of the front side of the outer wall of the machine body (1), and an indicator light (17) is installed on the right end of the lower middle part of the front side of the outer wall of the machine body (1).

5. The grounding and leakage prevention device for testing equipment according to claim 1, characterized in that: Multiple data interfaces (14) are equidistantly installed on the right side of the front wall of the outer wall of the body (1).

6. The grounding and leakage prevention device for testing equipment according to claim 1, characterized in that: Rubber blocks (18) are provided at the four corners of the outer wall of the body (1), and multiple bolts (19) are threaded at equal intervals on the outer wall of the rubber blocks (18).

7. The grounding and leakage prevention device for testing equipment according to claim 1, characterized in that: Multiple USB ports (15) are equidistantly installed on the lower right side of the front side of the outer wall of the body (1).

8. The grounding and leakage prevention device for testing equipment according to claim 1, characterized in that: A handle (20) is fixedly connected to the middle of the top wall of the body (1), and an anti-slip sleeve (21) is installed on the outer wall of the handle (20).

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