Explosion-proof three-wire method grounding resistance on-line monitoring device

Abstract

The utility model discloses an explosion-proof three-wire method grounding resistance on-line monitoring device, which comprises a monitoring device and supporting legs, the monitoring device is arranged in an explosion-proof box body, the lower surfaces of the two groups of supporting legs are both provided with a plurality of groups of rubber anti-skid beans, and two groups of connecting plates are symmetrically arranged on the two sides of the lower surface of the explosion-proof box body. A plurality of folding assemblies used for stretching and retracting the supporting legs are arranged on the faces, corresponding to the two connecting plates, of the two supporting legs. Clamping assemblies used for clamping the folding assemblies are arranged on the upper surfaces of the supporting legs, the clamping assemblies are located on the outer side of the folding assembly on the outermost edge, the explosion-proof box body is conveniently and directly placed on the ground by arranging the supporting legs, and when the water depth of the ground is too high, the folding assemblies are unfolded, so that the height of the supporting legs is increased; and then the folding assembly is clamped through the clamping assembly, so that the explosion-proof box body is not in contact with accumulated water, the applicability of the whole device is improved, and meanwhile, the situation that the monitoring device is damaged due to water entering the explosion-proof box body is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of three-wire grounding resistance monitoring, in particular to an explosion-proof three-wire grounding resistance online monitoring device. Background Art

[0002] The three-wire method grounding resistance online monitoring device, referred to as the resistance monitoring instrument, is mainly an instrument for measuring the conductivity of an object. The resistance monitor is widely used in electrical safety inspections and grounding project completion inspections. There are many types of resistance monitors. Currently, insulation resistance monitors and surface resistance monitors are designed and manufactured on the market. Most of the existing three-wire method grounding resistance online monitoring devices are not equipped with legs. When the three-wire method grounding resistance online monitoring device is used outdoors, there may be dirt or water on the ground. Placing the three-wire method grounding resistance online monitoring device directly on the ground may cause the three-wire method grounding resistance online monitoring device to become dirty or flooded.

[0003] After searching, in the prior art, the authorization announcement number is: CN217739319U discloses a digital high-precision grounding resistance meter, including a grounding resistance tester body, a plurality of connecting wires are connected to the grounding resistance tester body, two mounting structures are installed on the grounding resistance tester body, the mounting structures are sleeved with anti-dropping springs, a limiting structure is slidably installed on the two mounting structures, the limiting structure includes a mounting base plate, a support rod and a limiting baffle, and the support rods are in a plurality and evenly installed at the rear end of the mounting base plate. The digital high-precision grounding resistance meter described in the utility model belongs to the field of resistance measuring instruments. By setting a limiting structure and an anti-dropping spring, it is convenient to limit the connecting wires connected to the grounding resistance tester body, thereby reducing the probability of the connecting wires being disconnected from the grounding resistance tester body after being accidentally touched, and finally making the use of the grounding resistance tester body more stable;

[0004] The above patent has the technical problem of not having legs when in use. To prevent the device from getting dirty or getting water ingressed, the above device cannot be placed on the ground when used outdoors and cannot be used outdoors, which reduces the applicability of the monitoring device. Therefore, we need to propose an explosion-proof three-wire grounding resistance online monitoring device. Utility Model Content

[0005] The purpose of the utility model is to provide an explosion-proof three-wire grounding resistance online monitoring device, which facilitates placing the explosion-proof box directly on the ground by arranging supporting legs, and when the depth of ground water accumulation is too high, the folding component is opened to increase the height of the supporting legs, and then the folding component is clamped by the clamping component, so that the explosion-proof box does not come into contact with the accumulated water, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present utility model provides the following technical solution: An explosion-proof three-wire method grounding resistance on-line monitoring device, including a monitoring device and support legs. The monitoring device is arranged inside an explosion-proof box body. There are two groups of support legs, and a number of groups of rubber anti-slip beans are arranged on the lower surfaces of the two groups of support legs. Two connecting plates are symmetrically arranged on both sides of the lower surface of the explosion-proof box body. A number of folding components for extending and contracting the support legs are arranged on the corresponding surfaces of the two groups of support legs and the two connecting plates;

[0007] A clamping component for clamping the folding component is arranged on the upper surface of the support leg, and the clamping component is located outside the outermost group of folding components.

[0008] Preferably, the folding component includes a lower arc plate, a connecting block and an upper arc plate. The lower arc plate is fixedly installed on the upper surface of the corresponding support leg, the upper arc plate is fixedly installed on the lower surface of the corresponding connecting plate, and one end of the connecting block is rotatably connected to the lower arc plate, and the other end of the connecting block is rotatably connected to the upper arc plate.

[0009] Preferably, the clamping component includes a fixing plate, a clamping plate, a limiting plate and a mounting plate. There are two groups of fixing plates and limiting plates. The two groups of fixing plates are fixedly installed on the upper surface of the support leg. The two groups of fixing plates are connected to one lower arc plate. The clamping plate is fixedly installed on the corresponding surface of the two groups of fixing plates. The two groups of limiting plates are fixedly installed on the side of the two groups of fixing plates away from the lower arc plate. The mounting plate is fixedly sleeved on the outer arc surface of the connecting block.

[0010] Preferably, the clamping component further includes a compression spring, a moving block, a clamping column and a pressing arc plate. The bottom end of the compression spring is fixedly connected to the upper surface of the support leg, the top end of the compression spring is fixedly connected to the lower surface of the moving block, and the clamping column is arranged on the upper surface of the moving block.

[0011] Preferably, a limiting groove corresponding to the clamping plate is opened inside the moving block, and a pressing arc plate is arranged on the side of the moving block away from the lower arc plate.

[0012] Preferably, a clamping hole corresponding to the clamping column is opened on the lower surface of the mounting plate. The moving block is located on the corresponding surface of the two groups of fixing plates, and the pressing arc plate is located on the corresponding surface of the two groups of limiting plates.

[0013] Preferably, an explosion-proof cover is arranged on the upper surface of the explosion-proof box body.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] The utility model facilitates directly placing the explosion-proof box body on the ground by arranging support legs. When the water depth on the ground is too high, the folding component is opened to increase the height of the support legs, and then the folding component is clamped by the clamping component, so that the explosion-proof box body does not contact the accumulated water, thereby improving the applicability of the overall device and avoiding damage to the monitoring device caused by water entering the explosion-proof box body.

[0016] Other features and advantages of the utility model will be described in the subsequent description, and partly will be obvious from the description, or will be understood by implementing the present invention. The objectives and other advantages of the utility model can be achieved and obtained through the structures pointed out in the description and the drawings. Brief Description of the Drawings

[0017] Figure 1 Schematic structural diagram for the recovery of the support legs of the utility model;

[0018] Figure 2 Schematic diagram of the overall structure of the utility model;

[0019] Figure 3 Side view of the overall structure of the utility model;

[0020] Figure 4 Exploded view of the clamping component of the utility model.

[0021] In the figure: 1. Explosion-proof box body; 2. Support legs; 3. Clamping component; 4. Folding component; 5. Explosion-proof cover; 6. Connecting plate; 7. Fixed plate; 8. Lower arc plate; 9. Connecting block; 10. Upper arc plate; 11. Clamping plate; 12. Limiting plate; 13. Compression spring; 14. Rubber anti-slip beans; 15. Mounting plate; 16. Moving block; 17. Clamping column; 18. Limiting groove; 19. Pressing arc plate. Detailed Description of the Embodiment

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] The present utility model provides: an explosion-proof three-wire method grounding resistance on-line monitoring device, as Figures 1-4As shown in the figure, it includes a monitoring device and support legs 2. The monitoring device is arranged inside the explosion-proof box body 1. There are two groups of support legs 2, and a number of groups of rubber anti-slip beans 14 are arranged on the lower surfaces of the two groups of support legs 2. Two groups of connecting plates 6 are symmetrically arranged on both sides of the lower surface of the explosion-proof box body 1. A number of groups of folding components 4 for extending and contracting the support legs 2 are arranged on the corresponding surfaces of the two groups of support legs 2 and the two groups of connecting plates 6;

[0024] On the upper surface of the support leg 2, there is a clamping component 3 for clamping the folding component 4, and the clamping component 3 is located outside the outermost group of folding components 4. The clamping component 3 is arranged at the edge of the support leg 2, so as to avoid the clamping component 3 affecting the folding of the folding component 4. And the support leg 2 is arranged to facilitate the direct placement of the explosion-proof box body 1 on the ground. When the water depth on the ground is too high, the folding component 4 is opened to increase the height of the support leg 2, and then the folding component 4 is clamped by the clamping component 3, so that the explosion-proof box body 1 does not contact the accumulated water, thereby improving the applicability of the overall device and avoiding damage to the monitoring device caused by water entering the explosion-proof box body 1.

[0025] Preferably, the folding component 4 includes a lower arc plate 8, a connecting block 9 and an upper arc plate 10. The lower arc plate 8 is fixedly installed on the upper surface of the corresponding support leg 2, the upper arc plate 10 is fixedly installed on the lower surface of the corresponding connecting plate 6, and one end of the connecting block 9 is rotatably connected to the lower arc plate 8, and the other end of the connecting block 9 is rotatably connected to the upper arc plate 10. The connecting block 9 is rotatably connected to both the lower arc plate 8 and the upper arc plate 10, so that the connecting block 9 can rotate, and then the height of the support leg 2 can be adjusted. When the connecting block 9 rotates to the retracted position, the support leg 2 is folded and retracted below the connecting plate 6. At this time, the lower arc plate 8 does not contact the adjacent upper arc plate 10, so as to ensure that the support leg 2 can be retracted.

[0026] Furthermore, the clamping component 3 includes a fixing plate 7, a clamping plate 11, a limiting plate 12 and a mounting plate 15. There are two groups of fixing plates 7 and limiting plates 12. The two groups of fixing plates 7 are fixedly installed on the upper surface of the support leg 2. The two groups of fixing plates 7 are connected to a lower arc plate 8. The clamping plate 11 is fixedly installed on the corresponding surface of the two groups of fixing plates 7. The two groups of limiting plates 12 are fixedly installed on the side of the two groups of fixing plates 7 away from the lower arc plate 8. The mounting plate 15 is fixedly sleeved on the outer arc surface of the connecting block 9. When the connecting block 9 rotates and folds, the mounting plate 15 does not contact the explosion-proof box body 1 and the connecting plate 6, so as to ensure that the connecting block 9 can rotate normally by 90 degrees, and then ensure that the support leg 2 can be retracted and lowered.

[0027] Furthermore, the clamping assembly 3 also includes a compression spring 13, a moving block 16, a clamping column 17 and a pressing arc plate 19. The bottom end of the compression spring 13 is fixedly connected to the upper surface of the support leg 2, the top end of the compression spring 13 is fixedly connected to the lower surface of the moving block 16, and the clamping column 17 is arranged on the upper surface of the moving block 16. A group of cylinders are arranged inside the compression spring 13 and on the upper surface of the support leg 2 to prevent the compression spring 13 from bending and breaking, and when the compression spring 13 is compressed, the moving block 16 does not contact the cylinders.

[0028] It is worth mentioning that a limiting groove 18 corresponding to the clamping plate 11 is opened inside the moving block 16, and a pressing arc plate 19 is provided on the side of the moving block 16 away from the lower arc plate 8. When the supporting leg 2 is extended, the clamping plate 11 will be clamped into the limiting groove 18, thereby preventing the moving block 16 from always moving upward under the action of the compression spring 13. When the lowered supporting leg 2 needs to be recovered, the compression spring 13 is compressed by pressing the pressing arc plate 19 downward. At this time, the moving block 16 follows and moves downward. At this time, the clamping column 17 will leave the mounting plate 15. At this time, the supporting leg 2 can be recovered by moving to the upper right.

[0029] Specifically, a clamping hole corresponding to the clamping column 17 is opened on the lower surface of the mounting plate 15, the movable block 16 is located on the corresponding surfaces of the two groups of fixed plates 7, and the pressing arc plate 19 is located on the corresponding surfaces of the two groups of limiting plates 12. The movable block 16 and the pressing arc plate 19 are limited by the fixed plate 7 and the limiting plate 12 respectively to prevent the movable block 16 and the pressing arc plate 19 from being displaced in the left and right directions. When the support leg 2 needs to be extended, the support leg 2 is moved to the left rear. Because one end of the mounting plate 15 is set to be an arc shape, when the support leg 2 is extended, the clamping column 17 will be clamped into the inside of the clamping hole along the arc end of the mounting plate 15, thereby fixing the position of a group of connecting blocks 9, thereby fixing the support leg 2.

[0030] In addition, an explosion-proof cover 5 is provided on the upper surface of the explosion-proof box 1 , and the detection device is located inside the explosion-proof box 1 . The explosion-proof box 1 cooperates with the explosion-proof cover 5 to protect the monitoring device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof on-line monitoring device for grounding resistance by three-wire method, characterized in that, Including: a monitoring device and support legs (2), the monitoring device is arranged inside an explosion-proof box body (1), there are two groups of the support legs (2), and a number of groups of rubber anti-slip beans (14) are arranged on the lower surfaces of the two groups of the support legs (2). Two connecting plates (6) are symmetrically arranged on both sides of the lower surface of the explosion-proof box body (1). A number of groups of folding components (4) for extending and contracting the support legs (2) are arranged on the corresponding surfaces of the two groups of the support legs (2) and the two connecting plates (6). A clamping component (3) for clamping the folding component (4) is arranged on the upper surface of the support leg (2), and the clamping component (3) is located outside the outermost group of the folding components (4).

2. An explosion-proof three-wire method grounding resistance on-line monitoring device according to claim 1, characterized in that: The folding component (4) includes a lower arc plate (8), a connecting block (9) and an upper arc plate (10). The lower arc plate (8) is fixedly installed on the upper surface of the corresponding support leg (2). The upper arc plate (10) is fixedly installed on the lower surface of the corresponding connecting plate (6). One end of the connecting block (9) is rotatably connected to the lower arc plate (8), and the other end of the connecting block (9) is rotatably connected to the upper arc plate (10).

3. An explosion-proof three-wire method grounding resistance online monitoring device according to claim 2, characterized in that: The clamping component (3) includes fixing plates (7), a clamping plate (11), limiting plates (12) and a mounting plate (15). There are two groups of the fixing plates (7) and the limiting plates (12). The two groups of the fixing plates (7) are fixedly installed on the upper surface of the support leg (2). The two groups of the fixing plates (7) are connected to one group of the lower arc plates (8). The clamping plate (11) is fixedly installed on the corresponding surfaces of the two groups of the fixing plates (7). The two groups of the limiting plates (12) are fixedly installed on the sides of the two groups of the fixing plates (7) away from the lower arc plate (8). The mounting plate (15) is fixedly sleeved on the outer arc surface of the connecting block (9).

4. An explosion-proof three-wire method grounding resistance on-line monitoring device according to claim 3, characterized in that: The clamping component (3) further includes a compression spring (13), a moving block (16), a clamping column (17) and a pressing arc plate (19). The bottom end of the compression spring (13) is fixedly connected to the upper surface of the support leg (2). The top end of the compression spring (13) is fixedly connected to the lower surface of the moving block (16). And the clamping column (17) is arranged on the upper surface of the moving block (16).

5. An explosion-proof three-wire method grounding resistance on-line monitoring device according to claim 4, characterized in that: A limiting groove (18) corresponding to the clamping plate (11) is formed inside the moving block (16), and a pressing arc plate (19) is arranged on the side of the moving block (16) away from the lower arc plate (8).

6. The on-line monitoring device for grounding resistance by explosion-proof three-wire method according to claim 4, characterized in that: A clamping hole corresponding to the clamping column (17) is formed on the lower surface of the mounting plate (15). The moving block (16) is located on the corresponding surfaces of the two groups of the fixing plates (7), and the pressing arc plate (19) is located on the corresponding surfaces of the two groups of the limiting plates (12).

7. An explosion-proof three-wire method grounding resistance on-line monitoring device according to claim 1, characterized in that: An explosion-proof cover (5) is arranged on the upper surface of the explosion-proof box body (1).

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