A zinc oxide surge arrester live testing device

Abstract

This utility model belongs to the field of surge arrester testing technology, and in particular to a live-line testing device for zinc oxide surge arresters. It includes a testing device body with symmetrically rotatably connected to both ends of the testing device body. Each rotatable component includes an outer cover rotatably connected to the testing device body. A self-rebound rotating shaft is rotatably connected to the inner wall of the outer cover, and a shoulder strap is wound around the surface of the self-rebound rotating shaft. By setting up the rotatable component, when using the testing device body outdoors, the shoulder strap can be stretched to a suitable length according to individual needs. Then, the perforations on the shoulder strap are adjusted to correspond to the positions of the first and second snap buttons. At this point, the two connecting straps are fastened together through the perforations via the first and second snap buttons, thus fixing the connecting straps to the shoulder strap. This limits the length of the outer cover, allowing the testing device body to be carried on the shoulder via the shoulder strap, effectively freeing the hands, saving effort, and facilitating carrying when outdoors.

Description

Technical Field

[0001] This utility model belongs to the field of surge arrester testing technology, specifically relating to a live testing device for zinc oxide surge arresters. Background Technology

[0002] The zinc oxide surge arrester live-line testing device is a specialized instrument used for testing various AC electrical parameters of zinc oxide surge arresters in the field and laboratory. It is widely used in the field online monitoring (live-line testing) and laboratory (power outage maintenance) of zinc oxide surge arresters.

[0003] Chinese patent CN213023531 U discloses a testing device for a live-line tester of a zinc oxide surge arrester, comprising a base plate, a shock-absorbing mechanism, a zinc oxide surge arrester body, a first zinc oxide surge arrester live-line tester body, and a second zinc oxide surge arrester live-line tester body. The shock-absorbing mechanism is fixedly installed at the four corners of the bottom of the base plate, and casters are fixedly installed at the bottom of the shock-absorbing mechanism. A brake lever is provided on the rear side of each caster. A mounting base is fixedly installed at the center of the top of the base plate, and the zinc oxide surge arrester body is fixedly installed on the top of the mounting base. Concave mounting brackets are fixedly installed on both sides of the top of the base plate. This utility model incorporates a shock-absorbing mechanism, which buffers external vibrations, preventing the vibrations from being transmitted to the device and damaging its electrical components. It also ensures the stability of the device, allowing it to perform testing operations normally.

[0004] The above-mentioned device adopts a portable testing method. However, when using the above-mentioned device, the large size and weight of the testing device make it inconvenient to carry and install on site, which increases the difficulty of operation and time cost of testing. The existing testing device does not have a convenient structure for handling. Therefore, a new type of live testing device for zinc oxide surge arresters is needed to improve the above-mentioned device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a live-line testing device for zinc oxide surge arresters, which has the advantage of being easy to handle and solves the problem of the device being too large and inconvenient to carry when traveling.

[0006] To achieve the above-mentioned purpose of making the testing device easy to handle, this utility model provides the following technical solution: a live testing device for zinc oxide surge arresters, including a testing device body, with retrieval components symmetrically and rotatably connected to both ends of the testing device body;

[0007] The retrieval component includes an outer cover rotatably connected to the main body of the testing device. A self-rebound pivot is rotatably connected to the inner wall of the outer cover. A shoulder strap is wrapped around the surface of the self-rebound pivot. A strip-shaped opening is cut at the top of the outer cover, and the shoulder strap passes through the strip-shaped opening to the outside of the outer cover. Multiple perforations are evenly spaced on the shoulder strap. Connecting straps are fixedly connected to the top of the outer cover on both sides of the shoulder strap. A first snap and a second snap are symmetrically fixedly connected to one end of the two connecting straps, and the first snap and the second snap engage with each other.

[0008] Furthermore, the take-up component is equipped with an adjustment component, which includes a retainer fixedly connected to the side of the test device body.

[0009] Furthermore, a circular groove is drilled at the end of the ferrule away from the test device body, and a connecting shaft is fixedly connected at the end of the outer cover closer to the test device body, and the connecting shaft is engaged and rotatably connected with the circular groove.

[0010] Furthermore, the connecting shaft and the side wall of the ferrule are symmetrically provided with corresponding screw holes, and bolts are inserted into the screw holes, with the bolts passing through the ferrule and the connecting shaft.

[0011] Furthermore, a limit block is fixedly connected to one end of the bolt, and a nut is threaded to the other end.

[0012] Furthermore, a protective ring made of plastic is fixedly connected to the inner wall of the perforation.

[0013] Furthermore, the bolts and nuts are designed to be manually tightened.

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

[0015] 1. When using this utility model, by setting up a retrieval component, when using the testing device body outdoors, the shoulder strap can be stretched to a suitable length according to personal needs. Then, the perforations on the shoulder strap are adjusted to the positions corresponding to the first and second snap buttons. At this time, the two connecting straps are fastened together by passing through the perforations with the first and second snap buttons, thereby fixing the connecting straps to the shoulder strap. At this time, the length of the outer cover can be limited, and the testing device body can be carried on the shoulder with the shoulder strap, effectively achieving the effect of freeing the hands, saving effort, and making it convenient to carry when going out.

[0016] 2. In use, this utility model, by setting an adjustment component, allows the outer cover to rotate within the ferrule via the connecting shaft when the testing device body is picked up, thereby adjusting the angle of the outer cover. The testing device body can be picked up horizontally or vertically according to personal preference, thus adjusting the outer cover to a horizontal or vertical state. After adjustment, the bolt can be inserted into the screw hole, passing through the ferrule and the connecting shaft, and then the bolt is threaded to one end of the nut to prevent the bolt from falling off, thereby fixing the outer cover and effectively achieving the effect of freely adjusting the direction of use of the strap. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the isometric structure of the testing device of this utility model;

[0019] Figure 2 This is a schematic diagram of the shoulder strap installation structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the strap limiting structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the adjustment component structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the positioning structure of the adjustment component of this utility model.

[0023] In the diagram: 1. Test device body; 2. Retrieval component; 201. Outer cover; 202. Shoulder strap; 203. Perforation; 204. Connecting strap; 205. First snap; 206. Second snap; 207. Self-rebound rotating shaft; 208. Strip opening; 3. Adjustment component; 301. Connecting shaft; 302. Slip sleeve; 303. Screw hole; 304. Bolt; 305. Nut. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0025] Please see Figure 1-3 This utility model provides a technical solution: a live-line testing device for zinc oxide surge arresters, including a testing device body 1, with pick-up components 2 symmetrically rotatably connected to both ends of the testing device body 1;

[0026] The take-up component 2 includes an outer cover 201 rotatably connected to the main body 1 of the testing device. A self-rebound rotating shaft 207 is rotatably connected to the inner wall of the outer cover 201. A shoulder strap 202 is wrapped around the surface of the self-rebound rotating shaft 207. A strip-shaped opening 208 is cut at the top of the outer cover 201, and the shoulder strap 202 passes through the strip-shaped opening 208 to the outside of the outer cover 201. Multiple perforations 203 are equally spaced on the shoulder strap 202. Connecting straps 204 are fixedly connected to the top of the outer cover 201 on both sides of the shoulder strap 202. A first snap 205 and a second snap 206 are symmetrically fixedly connected to one end of the two connecting straps 204, and the first snap 205 and the second snap 206 are engaged.

[0027] By setting up the retrieval component 2, when using the test device body 1 outdoors, the shoulder strap 202 can be stretched to a suitable length according to personal needs. Then, the perforation 203 on the shoulder strap 202 is adjusted to the position corresponding to the first snap 205 and the second snap 206. At this time, the two connecting straps 204 are fastened together by passing through the perforation 203 through the first snap 205 and the second snap 206, thereby fixing the connecting straps 204 to the shoulder strap 202. At this time, the length of the outer cover 201 can be limited, and the test device body 1 can be carried on the shoulder through the shoulder strap 202, effectively achieving the effect of freeing the hands, saving effort, and making it convenient to carry when going out.

[0028] like Figure 4-5 The take-up component 2 is equipped with an adjustment component 3. The adjustment component 3 includes a ferrule 302 fixedly connected to the side of the test device body 1. The end of the ferrule 302 away from the test device body 1 has a round hole groove. The end of the outer cover 201 close to the test device body 1 is fixedly connected to a connecting shaft 301, and the connecting shaft 301 is rotatably connected to the round groove. The connecting shaft 301 and the side wall of the ferrule 302 are symmetrically provided with corresponding screw holes 303. A bolt 304 is inserted into the screw hole 303, and the bolt 304 passes through the ferrule 302 and the connecting shaft 301. One end of the bolt 304 is fixedly connected to a limit block, and the other end is threadedly connected to a nut 305. A plastic protective ring is fixedly connected to the inner wall of the through hole 203. The bolt 304 and the nut 305 are designed to be manually tightened.

[0029] By setting the adjustment component 3, when the test device body 1 is picked up, the outer cover 201 can be rotated in the sleeve 302 through the connecting shaft 301, thereby adjusting the angle of the outer cover 201. The test device body 1 can be picked up horizontally or vertically according to personal habits, thereby adjusting the outer cover 201 to a horizontal or vertical state. After adjustment, the bolt 304 can be inserted into the screw hole 303, passing through the sleeve 302 and the connecting shaft 301, and then the nut 305 is threaded to one end of the bolt 304 to prevent the bolt 304 from falling off, thereby fixing the outer cover 201 and effectively achieving the effect of freely adjusting the use direction of the strap 202.

[0030] The working principle of the above embodiment is as follows: Compared with the prior art, when using the testing device body 1 outdoors, the shoulder strap 202 can be stretched to a suitable length according to personal needs. Then, the perforation 203 on the shoulder strap 202 is adjusted to the position corresponding to the first snap 205 and the second snap 206. At this time, the two connecting straps 204 are fastened together through the perforation 203 via the first snap 205 and the second snap 206, thereby fixing the connecting straps 204 to the shoulder strap 202. At this time, the length of the outer cover 201 can be limited, and the testing device body 1 can be carried on the shoulder via the shoulder strap 202, effectively achieving the effect of freeing the hands, saving effort, and facilitating carrying when going out. When testing the main body 1, the outer cover 201 can be rotated within the ferrule 302 via the connecting shaft 301, thereby adjusting the angle of the outer cover 201. The main body 1 can be selectively picked up horizontally or vertically according to personal preference, thus adjusting the outer cover 201 to a horizontal or vertical state. After adjustment, the bolt 304 can be inserted into the screw hole 303, passing through the ferrule 302 and the connecting shaft 301, and then connected to one end of the bolt 304 by the nut 305 to prevent the bolt 304 from falling off, thereby fixing the outer cover 201. This effectively achieves the effect of freely adjusting the direction of use of the strap 202, improving the practicality of the testing device and solving the problem of inconvenient handling of existing testing devices.

[0031] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A live-line testing device for zinc oxide surge arresters, comprising a testing device body (1), characterized in that: The testing device body (1) has symmetrically rotatably connected pick-up components (2) at both ends; The retrieval component (2) includes an outer cover (201) rotatably connected to the main body (1) of the testing device. A self-rebound rotating shaft (207) is rotatably connected to the inner wall of the outer cover (201). A shoulder strap (202) is wrapped around the surface of the self-rebound rotating shaft (207). A strip-shaped opening (208) is cut at the top of the outer cover (201), and the shoulder strap (202) passes through the strip-shaped opening (208) to the outside of the outer cover (201). A plurality of perforations (203) are equally spaced on the shoulder strap (202). A connecting strap (204) is fixedly connected to the top of the outer cover (201) on both sides of the shoulder strap (202). A first snap (205) and a second snap (206) are symmetrically fixedly connected to one end of the two connecting straps (204), and the first snap (205) and the second snap (206) are engaged.

2. The live-line testing device for a zinc oxide surge arrester according to claim 1, characterized in that: The picking component (2) is equipped with an adjustment component (3), which includes a retainer (302) fixedly connected to the side of the test device body (1).

3. The live-line testing device for a zinc oxide surge arrester according to claim 2, characterized in that: The sleeve (302) has a circular hole groove at the end away from the test device body (1), and the outer cover (201) is fixedly connected to the connecting shaft (301) at the end near the test device body (1), and the connecting shaft (301) is rotatably connected to the circular groove.

4. The live-line testing device for a zinc oxide surge arrester according to claim 3, characterized in that: The connecting shaft (301) and the sleeve (302) are symmetrically provided with corresponding screw holes (303) on their side walls. A bolt (304) is inserted into the screw hole (303) and the bolt (304) passes through the sleeve (302) and the connecting shaft (301).

5. The live-line testing device for a zinc oxide surge arrester according to claim 4, characterized in that: One end of the bolt (304) is fixedly connected to a limit block, and the other end is threadedly connected to a nut (305).

6. The live-line testing device for a zinc oxide surge arrester according to claim 1, characterized in that: A protective ring made of plastic is fixedly connected to the inner wall of the perforation (203).

7. The live-line testing device for a zinc oxide surge arrester according to claim 4, characterized in that: The bolts (304) and nuts (305) are designed to be manually tightened.

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