Explosion-proof ground resistance tester toggle switch gas barrier cover

Abstract

The utility model relates to the technical field of resistance testers, and discloses a toggle switch gas barrier cover of an explosion-proof ground resistance tester, including a resistance tester body, the resistance tester body including a mounting main frame and a toggle switch, the toggle switch is detachably arranged on the mounting main frame through a threaded rod, a first barrier cover and a second barrier cover are arranged on the mounting main frame, and the right end faces of the first barrier cover and the second barrier cover are rotatably connected together. The wire connected to the toggle switch can be passed through the position between the two sets of sealing pads on the upper side, and during the test, since the first barrier cover and the second barrier cover block the air, the safety can be effectively improved, and in addition, the positioning mechanism can be operated, and then the left ends of the first barrier cover and the second barrier cover can be separated from each other, the positioning card plate will leave the interior of the connecting card plate, and finally the first barrier cover and the second barrier cover can be removed from the toggle switch.

Description

Technical Field

[0001] The utility model relates to the technical field of resistance testers, in particular to a toggle switch gas barrier cover of an explosion-proof ground resistance tester. Background Art

[0002] The toggle switch is a necessary instrument accessory in the explosion-proof ground resistance tester. It plays a gear shifting role. However, the existing toggle switch does not have a gas barrier cover. Before the gas barrier cover, the toggle switch is completely exposed to the air. When dangerous flammable and explosive gases such as combustible gases are detected around, this toggle switch is exposed to the outside, which will cause certain risks when used.

[0003] For this purpose, we propose the explosion-proof ground resistance tester toggle switch gas barrier cover. Utility Model Content

[0004] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a gas barrier cover of a toggle switch of an explosion-proof ground resistance tester.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an explosion-proof ground resistance tester toggle switch gas barrier cover, including a resistance tester body, the resistance tester body including a mounting main frame and a toggle switch, the toggle switch is detachably arranged on the mounting main frame through a threaded rod, the mounting main frame is provided with a first barrier cover and a second barrier cover, the right side end faces of the first barrier cover and the second barrier cover are rotatably connected together, the toggle switch is located inside the cavity formed by the first barrier cover and the second barrier cover, the upper and lower walls adjacent to the first barrier cover and the second barrier cover are both provided with through grooves, and four sets of through grooves are provided. The inside of the groove is fixedly installed with a sealing gasket to increase the sealing effect. The threaded rod can move through the wall surfaces between the two sets of sealing gaskets on the lower side. The space formed by the threaded rod and the two sets of sealing gaskets on the lower side is adapted to each other. A connecting card is fixedly installed on the left outer wall of the first barrier cover. The connecting card is in the shape of a U.S. character. A fixed connecting plate is fixedly installed on the left outer wall of the second barrier cover. A positioning card for limiting the position is fixedly installed on the front wall surface of the fixed connecting plate. The interiors of the positioning card and the connecting card are adapted to each other. The positioning card is movably inserted into the interior of the connecting card. The positioning card and the connecting card are provided with a positioning mechanism to fix them together.

[0006] Preferably, the positioning mechanism includes an installation slot, a positioning block and a first spring, the installation slot is opened on the upper wall surface of the positioning card plate, the positioning block is movably installed inside the installation slot, the positioning block and the interior of the installation slot are adapted to each other, and the first spring is fixedly installed between the lower wall surface of the positioning block and the wall surface close to the installation slot.

[0007] Preferably, the positioning mechanism includes an installation box, a movable slide bar, an extrusion slider, a second spring and a positioning slot, the installation box is fixedly mounted on the upper side wall of the connecting card plate, and the movable slide bar is vertically arranged inside the installation box.

[0008] Preferably, the outer wall of the movable slide bar movably penetrates the upper wall surface of the installation box, the extrusion slider is fixedly installed on the lower wall surface of the movable slide bar, and the second spring is fixedly installed between the extrusion slider and the adjacent wall surface of the installation box.

[0009] Preferably, the outer wall of the movable slide rod moves through the interior of the second spring, a positioning slot is provided on the top wall surface inside the connecting card plate, the extrusion slide and the positioning slot are adapted to each other, and the extrusion slide moves into the interior of the positioning slot.

[0010] Preferably, the upper side wall of the positioning block is an inclined surface which is higher at the back and lower at the front, and the inclined surface is an arc surface. The positioning block and the positioning slot are adapted to each other, and the outer wall of the positioning block is movably inserted into the interior of the positioning slot.

[0011] Beneficial Effects

[0012] The utility model provides a gas barrier cover for a toggle switch of an explosion-proof ground resistance tester.

[0013] Beneficial effects:

[0014] (1) The gas barrier cover of the toggle switch of the explosion-proof ground resistance tester can pass the wire connected to the toggle switch through the position between the two sets of sealing pads on the upper side during use. During the test, the first barrier cover and the second barrier cover block the air, which can effectively improve the safety. In addition, the positioning mechanism can be operated, and then the left ends of the first barrier cover and the second barrier cover can be separated from each other, and the positioning card plate will leave the interior of the connecting card plate. Finally, the first barrier cover and the second barrier cover can be removed from the toggle switch, which is convenient for maintenance of the toggle switch and replacement of the first barrier cover and the second barrier cover.

[0015] (2) The toggle switch gas barrier cover of the explosion-proof ground resistance tester. During use, the utility model can press the movable slide bar downward, the second spring will be stretched, the extrusion slide bar will move downward and squeeze the positioning block, the positioning block will move downward and squeeze the first spring to contract, and finally the positioning block and the positioning slot will be separated. At this time, the positioning card plate can be pulled out of the connecting card plate. In addition, when connecting the positioning card plate and the connecting card plate, it is only necessary to insert the positioning card plate into the interior of the connecting card plate, the inclined surface of the positioning card block will contact the top wall surface inside the connecting card plate, the positioning card block will be forced to move downward and squeeze the first spring to contract, when the positioning card block moves to the position of the positioning slot, the first spring begins to stretch, the positioning card block faces upward and is inserted into the interior of the positioning slot, so as to realize the positioning of the first barrier cover and the second barrier cover. The operation is relatively simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of the utility model as a whole;

[0017] Figure 2 It is a three-dimensional diagram of the first barrier cover of the utility model;

[0018] Figure 3 for Figure 2 A magnified view of location A;

[0019] Figure 4 for Figure 2 A magnified view of location B;

[0020] Figure 5 for Figure 4 Enlarged view of location C.

[0021] Legend: 1. Resistance tester body; 2. First barrier cover; 3. Second barrier cover; 4. Fixed connecting plate; 5. Positioning card plate; 6. Connecting card plate; 7. Sealing gasket; 8. Mounting slot; 9. Positioning block; 10. First spring; 11. Mounting box; 12. Moving slide bar; 13. Extrusion slide block; 14. Second spring; 15. Positioning slot. DETAILED DESCRIPTION

[0022] Embodiment 1: Explosion-proof ground resistance tester toggle switch gas barrier cover, such as Figure 1-2As shown, the resistance tester includes a main body 1, which includes a mounting frame and a toggle switch. The toggle switch is detachably arranged on the mounting frame through a threaded rod. The mounting frame is provided with a first blocking cover 2 and a second blocking cover 3. The right end surfaces of the first blocking cover 2 and the second blocking cover 3 are rotatably connected together. The toggle switch is located inside a cavity formed by the first blocking cover 2 and the second blocking cover 3. The upper and lower walls of the first blocking cover 2 and the second blocking cover 3 are both provided with through grooves. The interiors of the four groups of through grooves are fixedly provided with sealing pads 7 for increasing the sealing effect. The threaded rods are provided with sealing pads 7 for increasing the sealing effect. The rod moves through the wall surfaces where the two sets of sealing gaskets 7 on the lower side are close to each other, and the space formed by the threaded rod and the two sets of sealing gaskets 7 on the lower side are adapted to each other. A connecting card plate 6 is fixedly installed on the left outer wall of the first barrier cover 2, and the connecting card plate 6 is in a U-shape. A fixed connecting plate 4 is fixedly installed on the left outer wall of the second barrier cover 3, and a positioning card plate 5 for limiting the position is fixedly installed on the front wall surface of the fixed connecting plate 4. The interiors of the positioning card plate 5 and the connecting card plate 6 are adapted to each other, and the positioning card plate 5 is movably inserted into the interior of the connecting card plate 6. The positioning card plate 5 and the connecting card plate 6 are provided with a positioning mechanism to fix them together.

[0023] During use of the utility model, the wire connected to the toggle switch can be passed through the position between the two sets of sealing pads 7 on the upper side. During the test, since the first blocking cover 2 and the second blocking cover 3 block the air, the safety can be effectively improved. In addition, the positioning mechanism can be operated, and then the left ends of the first blocking cover 2 and the second blocking cover 3 are separated from each other, the positioning card plate 5 will leave the interior of the connecting card plate 6, and finally the first blocking cover 2 and the second blocking cover 3 are removed from the toggle switch.

[0024] Embodiment 2: Based on Embodiment 1, Figure 3-5 As shown, the positioning mechanism includes an installation slot 8, a positioning block 9 and a first spring 10. The installation slot 8 is opened on the upper side wall of the positioning card plate 5. The positioning block 9 is movably installed inside the installation slot 8. The positioning block 9 and the interior of the installation slot 8 are adapted to each other. The first spring 10 is fixedly installed between the lower side wall of the positioning block 9 and the wall close to the installation slot 8.

[0025] The positioning mechanism includes an installation box 11, a movable slide bar 12, an extrusion slider 13, a second spring 14 and a positioning slot 15. The installation box 11 is fixedly mounted on the upper wall of the connecting card plate 6, and the movable slide bar 12 is vertically arranged inside the installation box 11.

[0026] The outer wall of the movable slide bar 12 movably penetrates the upper wall of the installation box 11 , the extrusion slider 13 is fixedly installed on the lower wall of the movable slide bar 12 , and the second spring 14 is fixedly installed between the extrusion slider 13 and the wall of the installation box 11 close to each other.

[0027] The outer wall of the movable slide rod 12 moves through the inside of the second spring 14 , and the positioning slot 15 is opened on the top wall surface inside the connecting card plate 6 . The extrusion slide 13 and the positioning slot 15 are adapted to each other, and the extrusion slide 13 moves into the inside of the positioning slot 15 .

[0028] The upper side wall of the positioning block 9 is an inclined surface with a high rear and a low front, and the inclined surface is an arc surface. The positioning block 9 and the positioning slot 15 are adapted to each other, and the outer wall of the positioning block 9 is movably inserted into the interior of the positioning slot 15.

[0029] When the utility model is in use, the movable slide bar 12 can be pressed downward, the second spring 14 will be stretched, the extrusion slide block 13 will move downward and squeeze the positioning block 9, the positioning block 9 moves downward and squeezes the first spring 10 to contract, and finally the positioning block 9 and the positioning slot 15 are separated, and the positioning card plate 5 can be pulled out from the connecting card plate 6. In addition, when connecting the positioning card plate 5 and the connecting card plate 6, it is only necessary to insert the positioning card plate 5 into the interior of the connecting card plate 6, the inclined surface of the positioning card block 9 will contact the top wall surface inside the connecting card plate 6, the positioning card block 9 is forced to move downward and squeeze the first spring 10 to contract, and when the positioning card block 9 moves to the position of the positioning slot 15, the first spring 10 begins to stretch, the positioning card block 9 faces upward and is inserted into the interior of the positioning slot 15, thereby realizing the positioning of the first barrier cover 2 and the second barrier cover 3.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An explosion-proof ground resistance tester toggle switch gas barrier cover, comprising a resistance tester body (1), the resistance tester body (1) comprising a mounting main frame and a toggle switch, the toggle switch being detachably arranged on the mounting main frame via a threaded rod, characterized in that: A first barrier cover (2) and a second barrier cover (3) are provided on the main mounting frame. The right end faces of the first barrier cover (2) and the second barrier cover (3) are rotatably connected together. The toggle switch is located inside the cavity formed by the first barrier cover (2) and the second barrier cover (3). Through grooves are provided on the upper and lower wall surfaces where the first barrier cover (2) and the second barrier cover (3) are close to each other. Sealing gaskets (7) for enhancing the sealing effect are fixedly installed inside the four groups of through grooves. The threaded rod movably passes through the wall surfaces between the two lower sealing gaskets (7) that are close to each other. The space formed by the threaded rod and the two lower sealing gaskets (7) is adapted. A connecting clamping plate (6) is fixedly installed on the left outer wall of the first barrier cover (2). The connecting clamping plate (6) is in a shape of a double-square frame. A fixed connecting plate (4) is fixedly installed on the left outer wall of the second barrier cover (3). A positioning clamping plate (5) for limiting is fixedly installed on the front side wall surface of the fixed connecting plate (4). The inside of the positioning clamping plate (5) is adapted to the inside of the connecting clamping plate (6). The positioning clamping plate (5) movably snaps into the inside of the connecting clamping plate (6). A positioning mechanism for fixing them together is provided on the positioning clamping plate (5) and the connecting clamping plate (6).

2. The toggle switch gas barrier cover of the explosion-proof ground resistance tester according to claim 1 is characterized by: The positioning mechanism includes an installation card slot (8), a positioning card block (9), and a first spring (10). The installation card slot (8) is opened on the upper side wall surface of the positioning clamping plate (5). The positioning card block (9) is movably installed inside the installation card slot (8). The positioning card block (9) is adapted to the inside of the installation card slot (8). The first spring (10) is fixedly installed between the lower side wall surface of the positioning card block (9) and the wall surface close to the installation card slot (8).

3. The explosion-proof ground resistance tester toggle switch gas barrier cover according to claim 2, characterized in that: The positioning mechanism includes an installation box (11), a moving slide rod (12), a pressing slider (13), a second spring (14), and a positioning card slot (15). The installation box (11) is fixedly installed on the upper side wall surface of the connecting clamping plate (6). The moving slide rod (12) is arranged vertically inside the installation box (11).

4. The toggle switch gas barrier cover of the explosion-proof ground resistance tester according to claim 3 is characterized by: The outer wall of the moving slide rod (12) movably penetrates through the upper side wall surface of the installation box (11). The pressing slider (13) is fixedly installed on the lower side wall surface of the moving slide rod (12). The second spring (14) is fixedly installed between the pressing slider (13) and the wall surface close to the installation box (11).

5. The toggle switch gas barrier cover of the explosion-proof ground resistance tester according to claim 4 is characterized by: The outer wall of the moving slide rod (12) movably passes through the inside of the second spring (14). The positioning card slot (15) is opened on the top wall surface inside the connecting clamping plate (6). The pressing slider (13) is adapted to the positioning card slot (15). The pressing slider (13) movably snaps into the inside of the positioning card slot (15).

6. The toggle switch gas barrier cover of the explosion-proof ground resistance tester according to claim 5 is characterized by: The upper side wall surface of the positioning card block (9) is an inclined surface that is higher at the back and lower at the front. The inclined surface is an arc surface. The positioning card block (9) is adapted to the positioning card slot (15). The outer wall of the positioning card block (9) movably snaps into the inside of the positioning card slot (15).

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