A multifunctional lightning arrester comprehensive tester

Abstract

The utility model discloses a multifunctional lightning arrester comprehensive tester, which comprises a test box, which is in the shape of a box body with an open top wall, a rear side wall of the test box fixedly provided with a vertical bracket, and a support plate is provided on the top of the bracket; a sealing cover plate is provided below the support plate and is lifted and lowered directly above the test box; a vertical sleeve rod is fixedly provided on one side of the top of the sealing cover plate. The utility model places the lightning arrester to be tested inside the test box, adjusts the height of the sealing cover plate, and then starts the vacuum pump, after the gas inside the test box is properly and quickly discharged, checks the value of the barometer at the moment, and leaves it to stand for a period of time. If the sealing performance inside the lightning arrester is poor, there will inevitably be air inside the lightning arrester, and the air pressure inside the test box will change, which will be directly fed back to the user through the barometer, and this method will not cause greater damage to the lightning arrester.

Description

Technical Field

[0001] The utility model relates to the technical field of lightning arrester testing, in particular to a multifunctional lightning arrester comprehensive tester. Background Art

[0002] Composite jacket arrester is a kind of electrical device used to protect electrical equipment from the hazards of high transient overvoltage generated by lightning strikes and limit the follow-on time. Existing arresters are generally installed outdoors, and the surrounding air contains a lot of moisture, dust and other pollutants, which will affect the performance of the arrester. Therefore, proper sealing of the arrester can effectively prevent these foreign substances from entering the interior of the arrester, protect the safety and stable operation of the arrester, and proper sealing can effectively maintain the state of the medium inside the arrester and effectively extend the service life of the arrester. Therefore, the arrester must be tested for its sealing by professional equipment before leaving the factory.

[0003] Some devices use a direct method to test the sealing of the arrester, that is, placing the arrester in a sealed box and injecting water into it. By visually observing whether there are bubbles leaking from the surface of the arrester, the sealing performance of the arrester can be preliminarily judged. Although this method is simple and easy, there are many problems and hidden dangers in actual application.

[0004] This method is potentially destructive to arresters with poor sealing performance. Once the sealing performance of the arrester is poor, water will directly enter the arrester, which may not only cause direct damage to the arrester, but also increase the difficulty and cost of subsequent repairs. Therefore, it is necessary to develop a multifunctional arrester comprehensive tester. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] A multifunctional lightning arrester comprehensive tester, comprising:

[0008] A test box, the test box is in the shape of a box with an open top wall, a vertical bracket is fixedly provided on the rear side wall of the test box, and a support plate is provided on the top of the bracket;

[0009] A sealing cover plate is provided below the support plate and is located just above the test box.

[0010] A sleeve rod, a vertical sleeve rod is fixedly provided on one side of the top of the sealing cover plate, the upper end of the sleeve rod is located on the top of the support plate and is provided with a barometer, and the detection end of the barometer is located below the sealing cover plate;

[0011] Exhaust pipe, a vertical exhaust pipe is fixedly provided on one side of the top of the support plate, the lower end of the exhaust pipe is located on the bottom surface of the support plate, and a vertical bellows is provided on the lower end of the exhaust pipe, a vertical intake pipe is fixedly provided on one side of the bottom of the sealing cover plate, the top of the intake pipe is located on the top surface of the sealing cover plate and directly below the bellows, the top of the intake pipe is connected to the bottom end of the bellows, a connecting pipe connected to the inner side of the exhaust pipe is provided on the outside of the exhaust pipe, an air extraction pump is provided on the top of the support plate, the air inlet end of the air extraction pump is connected to the other end of the connecting pipe, the air outlet end of the air extraction pump is connected to the outlet pipe, and a gas check valve 1 and a gas check valve 2 are respectively provided on the outlet pipe and the exhaust pipe.

[0012] As a preferred solution of the multifunctional lightning arrester comprehensive tester described in the utility model, wherein: a sealing gasket is arranged around the outer side wall of the sealing cover plate, and the outer side of the sealing gasket is interference fit with the inner side of the test box.

[0013] As a preferred solution of the multifunctional lightning arrester comprehensive tester described in the utility model, a vertical threaded column is screwed and rotated through the top center of the support plate, and the bottom end of the threaded column is rotatably arranged at the top center of the sealing cover plate through a bearing seat.

[0014] As a preferred solution of the multifunctional lightning arrester comprehensive tester described in the utility model, a knob is arranged on the top of the threaded column, and anti-slip grooves are arranged on the grip of the knob.

[0015] As a preferred solution of the multifunctional lightning arrester comprehensive tester described in the utility model, wherein: the upper and lower walls of the support plate are opened with sliding holes, and the outer side of the sleeve rod fits and slides through the sliding holes.

[0016] As a preferred solution of the multifunctional lightning arrester comprehensive tester described in the utility model, a switch is provided on the front side wall of the test box, and the switch is electrically connected to the vacuum pump and the power supply.

[0017] The beneficial effects of the utility model are as follows: firstly, a rough manual judgment is made to check whether the arrester has defects or leaks. If the human eye cannot see the tiny leak hole, the arrester to be tested is placed inside the test box, and the threaded column is driven to rotate by the knob to adjust the height of the sealing cover plate so that the sealing cover plate descends to close the test box. During the descending process of the sealing cover plate, the bellows is stretched, the air inlet pipe enters the inner cavity of the test box, the lower end of the sleeve rod descends with the sealing cover plate, the detection end of the barometer enters the interior of the test box, and then the vacuum pump is started to drain the air inside the test box. After the gas is discharged quickly and appropriately, check the current value of the barometer and let it stand for a while. If the sealing inside the arrester is poor, there must be air inside it. The air pressure in the test box cavity will be lower than the air pressure inside the arrester after being quickly extracted, so that the air pressure inside the arrester is slowly extracted to the inner cavity of the test box through tiny air leaks. The air pressures of the two will be basically the same. At this time, the air pressure inside the test box will change, which will be directly fed back to the user through the barometer. This method will not cause greater damage to the arrester. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 For this utility model Figure 1 A schematic diagram of the structure in the rear-view direction;

[0021] Figure 3 For this utility model Figure 1 Schematic diagram of the structure of the middle A area;

[0022] Figure 4 It is a schematic diagram of the structure of the utility model after the sealing cover plate is lowered.

[0023] In the figure: a test box 100, a bracket 110, a support plate 120, a sealing cover plate 200, a sealing gasket 210, a threaded column 220, a bearing seat 230, a knob 240, a sleeve rod 300, a barometer 310, a sliding hole 320, an exhaust pipe 400, a bellows 410, an air inlet pipe 420, a connecting pipe 430, an air pump 440, an air outlet pipe 450, a gas one-way valve 1 460, a gas one-way valve 2 470, and a switch 480. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0026] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0027] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] See also Figure 1-Figure 4 , shows a schematic diagram of the structure of a multifunctional lightning arrester comprehensive tester implementation method of the utility model, please refer to Figure 1-Figure 4 , a multifunctional lightning arrester comprehensive tester is introduced in detail.

[0029] A multifunctional lightning arrester comprehensive tester includes a test box 100, which is in the shape of a box with an open top wall. A vertical bracket 110 is fixedly provided on the rear side wall of the test box 100, and a support plate 120 is provided on the top of the bracket 110;

[0030] A sealing cover plate 200 is provided below the support plate 120 and is located directly above the test box 100.

[0031] A vertical sleeve rod 300 is fixedly provided on one side of the top of the sealing cover plate 200. The upper end of the sleeve rod 300 is located at the top of the support plate 120 and is provided with a barometer 310. The detection end of the barometer 310 is located below the sealing cover plate 200. The housing of the barometer 310 is fixed to the top of the sleeve rod 300, and the upper end of the sleeve rod 300 is sealed. The detection end of the barometer 310 passes through the inside of the hollow sleeve rod 300 and is located below the sealing cover plate 200. When the sealing cover plate 200 is lowered, the detection end of the barometer 310 can detect the air pressure inside the test box 100.

[0032] A vertical exhaust pipe 400 is fixedly provided on one side of the top of the support plate 120, the lower end of the exhaust pipe 400 is located on the bottom surface of the support plate 120, and a vertical bellows 410 is provided on the lower end of the exhaust pipe 400. A vertical air inlet pipe 420 is fixedly provided on one side of the bottom of the sealing cover plate 200, the top end of the air inlet pipe 420 is located on the top surface of the sealing cover plate 200 and is located directly below the bellows 410, the top end of the air inlet pipe 420 is connected to the bottom end of the bellows 410, and the outer side of the exhaust pipe 400 is provided with a connecting pipe 420 connected to the inner side of the exhaust pipe 400. A connecting pipe 430 is provided on the top of the support plate 120, an air pump 440 is provided, an air inlet end of the air pump 440 is connected to the other end of the connecting pipe 430, and an air outlet end of the air pump 440 is connected to an air outlet pipe 450, and a gas one-way valve 1 460 and a gas one-way valve 2 470 are provided on the air outlet pipe 450 and the exhaust pipe 400 respectively. When the test box 100 is in a sealed state, the set gas one-way valve 1 460 and the gas one-way valve 2 470 prevent external gas from entering the interior of the test box 100, while the internal gas of the test box 100 can be discharged.

[0033] Furthermore, sealing gaskets 210 are arranged around the outer wall of the sealing cover 200, and the outer side of the sealing gasket 210 is interference fit with the inner side of the test box 100. When the sealing cover 200 is lowered, the sealing gasket 210 can be squeezed in the gap between the outer side of the sealing cover 200 and the inner side of the test box 100, so that the test box 100 is in a sealed state as a whole.

[0034] Furthermore, a vertical threaded column 220 is threadedly rotatably provided at the top center of the support plate 120 , and the bottom end of the threaded column 220 is rotatably provided at the top center of the sealing cover plate 200 through a bearing seat 230 .

[0035] Furthermore, a knob 240 is provided on the top of the threaded column 220 , and anti-slip grooves are provided on the grip of the knob 240 .

[0036] Furthermore, the upper and lower walls of the support plate 120 are provided with sliding holes 320, and the outer side of the sleeve rod 300 is fitted and slidably penetrates the sliding holes 320. The sleeve rod 300 can be regarded as a pipe for installing the barometer 310, and can also be regarded as a rod body for limiting the sealing cover plate 200. Since the lower end of the threaded column 220 is rotatably connected to the sealing cover plate 200 through the bearing seat 230, when the sealing cover plate 200 is not limited by other components, it can rotate itself, and the sleeve rod 300 is set to be fixed and penetrate the sealing cover plate 200, so at this time, the sleeve rod 300 also plays a role in limiting the rotation of the sealing cover plate 200.

[0037] Furthermore, a switch 480 is disposed on the front side wall of the test box 100 . The switch 480 is electrically connected to the vacuum pump 440 and a power source. The switch 480 is used to start and stop the vacuum pump 440 .

[0038] In the specific use process, firstly, manually roughly judge whether the lightning arrester has defects or leakage. If the human eye cannot see the tiny leakage hole, the lightning arrester to be tested is placed inside the test box 100, and the threaded column 220 is driven to rotate by the knob 240 to adjust the height of the sealing cover plate 200 so that the sealing cover plate 200 descends to close the test box 100. During the descent of the sealing cover plate 200, the bellows 410 is stretched, and the air inlet pipe 420 enters the inner cavity of the test box 100. The lower end of the sleeve rod 300 descends with the sealing cover plate 200, and the detection end of the barometer 310 enters the interior of the test box 100, and then the pump is started. After the air pump 440 quickly and appropriately discharges the gas inside the test box 100, check the current value of the barometer 310 and let it stand for a while. If the sealing inside the lightning arrester is poor, there must be air inside it. The air pressure in the inner cavity of the test box 100 will be lower than the air pressure inside the lightning arrester after being quickly extracted, so that the air pressure inside the lightning arrester is slowly extracted to the inner cavity of the test box 100 through tiny leaks. The air pressures of the two will be basically the same. At this time, the air pressure inside the test box 100 will change, which will be directly fed back to the user through the barometer 310. This method will not cause greater damage to the lightning arrester.

[0039] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A multifunctional lightning arrester comprehensive tester, characterized in that: include: A test box (100), the test box (100) being in the shape of a box body with an open top wall, a vertical bracket (110) being fixedly provided on a rear side wall of the test box (100), and a support plate (120) being provided on the top of the bracket (110); A sealing cover plate (200), wherein the sealing cover plate (200) is provided below the support plate (120) and is located directly above the test box (100) and is lifted and lowered; A sleeve rod (300), wherein a vertical sleeve rod (300) is fixedly provided on one side of the top of the sealing cover plate (200) and penetrates through the top, the upper end of the sleeve rod (300) is located on the top of the support plate (120) and is provided with a barometer (310), and the detection end of the barometer (310) is located below the sealing cover plate (200); An exhaust pipe (400) is fixedly provided on one side of the top of the support plate (120) with a vertical exhaust pipe (400), the lower end of the exhaust pipe (400) is located on the bottom surface of the support plate (120), and a vertical corrugated pipe (410) is provided on the lower end of the exhaust pipe (400), a vertical air intake pipe (420) is fixedly provided on one side of the bottom of the sealing cover plate (200), the top end of the air intake pipe (420) is located on the top surface of the sealing cover plate (200) and directly below the corrugated pipe (410), and the air intake pipe (420) is fixedly provided on one side of the bottom of the sealing cover plate (200). 0) is connected to the bottom end of the bellows (410), the outer side of the exhaust pipe (400) is provided with a connecting pipe (430) connected to the inner side of the exhaust pipe (400), the top of the support plate (120) is provided with an air pump (440), the air inlet end of the air pump (440) is connected to the other end of the connecting pipe (430), the air outlet end of the air pump (440) is connected to an air outlet pipe (450), and the air outlet pipe (450) and the exhaust pipe (400) are respectively provided with a gas one-way valve (460) and a gas one-way valve (470).

2. A multifunctional lightning arrester comprehensive tester according to claim 1, characterized in that: Sealing pads (210) are arranged around the outer side wall of the sealing cover plate (200), and the outer side of the sealing pad (210) is interference-fitted with the inner side of the test box (100).

3. A multifunctional lightning arrester comprehensive tester according to claim 1, characterized in that: A vertical threaded column (220) is threadedly connected and rotatably penetrated at the top center of the support plate (120), and the bottom end of the threaded column (220) is rotatably disposed at the top center of the sealing cover plate (200) through a bearing seat (230).

4. A multifunctional lightning arrester comprehensive tester according to claim 3, characterized in that: A knob (240) is provided at the top of the threaded column (220), and a grip of the knob (240) is provided with anti-slip grooves.

5. The multifunctional arrester comprehensive tester according to claim 1, characterized in that: The upper and lower walls of the support plate (120) are provided with sliding holes (320), and the outer side of the sleeve rod (300) fits and slides through the sliding holes (320).

6. A multifunctional lightning arrester comprehensive tester according to claim 1, characterized in that: A switch (480) is provided on the front side wall of the test box (100), and the switch (480) is electrically connected to the vacuum pump (440) and a power source.

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