Lightweight high-strength high-pressure test equipment shielding cover

Abstract

A kind of shielding cover of light weight high-strength high-pressure test equipment. It relates to the field of shielding cover. Including base cover body and adjusting cover body, the base cover body and the adjusting cover body are both circular tube, the upper inner side of the base cover body is equipped with first step groove, the lower outer side of the adjusting cover body is equipped with second step groove, the lower part of the adjusting cover body is inserted in the upper part of the base cover body, the first step groove and the second step groove are engaged;A fixed hole is arranged on the outer wall of the base cover body, and the fixed hole is communicated with the first step groove;A plurality of adjusting holes are arranged on the outer wall of the adjusting cover body, and the adjusting hole is communicated with the second step groove;Multiple adjusting holes can be coaxial with the fixed hole, and the fixed hole and the adjusting hole in coaxial state are provided with locking member. The application can simply and quickly adjust the overall height of shielding cover, and can adapt to complex installation environment.

Description

Technical Field

[0001] This application relates to the field of shielding covers, specifically to a lightweight, high-strength, high-pressure testing equipment shielding cover. Background Technology

[0002] High-voltage electrical testing is a crucial step in verifying the insulation performance of power equipment and ensuring the safe and stable operation of the power grid. During high-voltage tests such as partial discharge detection, power frequency withstand voltage tests, and impulse voltage tests, strong transient or steady-state electric fields are generated in the test circuit, especially at the ends of the test specimen and connection points, due to the extremely high voltage. This electric field radiates high-frequency electromagnetic waves into the surrounding space, creating severe electromagnetic interference. This interference not only seriously affects the accuracy of readings from high-sensitivity measuring instruments (such as partial discharge detectors), leading to distorted measurement results and reduced signal-to-noise ratio, but may also threaten the normal operation of other nearby electronic equipment.

[0003] To suppress the aforementioned electromagnetic interference and ensure the accuracy and reliability of test data, shielding technology is commonly used in high-voltage testing, with the shielding cover being a crucial device. It is typically installed in areas of concentrated electric field, such as the test sample and the ends of high-voltage leads. Through its highly conductive metal casing, it forms an equipotential body, thereby isolating the high-voltage charged body from the external environment and effectively suppressing corona discharge and spatial electromagnetic radiation.

[0004] The existing shielding structure is too simple and fixed, meaning that the size of the shielding is fixed. When the installation conditions change, it cannot be adjusted adaptively, and a new, suitable shielding must be replaced, which affects the efficiency of the test. Utility Model Content

[0005] To overcome the shortcomings of the prior art, this application provides a lightweight, high-strength, high-pressure test equipment shield.

[0006] This application adopts the following technical solution: a lightweight, high-strength, high-pressure test equipment shield, including a base shield and an adjustment shield, both of which are cylindrical tubes. The upper inner side of the base shield is provided with a first stepped groove, and the lower outer side of the adjustment shield is provided with a second stepped groove. The lower part of the adjustment shield is inserted into the upper part of the base shield, and the first stepped groove and the second stepped groove are engaged.

[0007] A fixing hole is provided on the outer wall of the base cover, and the fixing hole communicates with the first step groove;

[0008] The outer wall of the adjustment cover is provided with multiple adjustment holes, and the adjustment port is connected to the second step groove;

[0009] All of the aforementioned adjustment holes can be coaxial with the fixed holes, and locking elements are inserted into the coaxial fixed holes and adjustment holes.

[0010] Optionally, the plurality of adjustment holes are spaced apart in the vertical direction, and the fixing hole is connected to the middle of the first step groove.

[0011] Optionally, the locking component includes a screw, a nut, a first pad, and a second pad, wherein one side of the first pad is in contact with the outer wall of the base cover, and one side of the second pad is in contact with the inner wall of the adjusting cover;

[0012] The tail of the screw presses against the other side of the first pad, the head of the screw passes through the first pad, the fixing hole, the adjusting hole and the second pad in sequence, and the nut is screwed onto the head of the screw and presses against the other side of the second pad.

[0013] Optionally, both the first pad and the second pad are provided with through holes for the screw to pass through.

[0014] Optionally, a flange is provided on the top outer side of the base cover and the top outer side of the adjustment cover. The flange has several through holes, and the several through holes on the two flanges correspond one-to-one and are coaxial. The two flanges are locked together by the screw and the nut.

[0015] Optionally, the lower part of the base cover and the upper part of the adjustment cover are provided with mounting holes, and the base cover and the adjustment cover are connected to the mounting column through the mounting holes.

[0016] Compared with the prior art, this application allows the adjustment cover to be disassembled into the base cover by the cooperation of the first step groove and the second step groove. By selecting different adjustment holes and fixing holes for coaxial adjustment, the overall height of the shielding cover can be adjusted quickly and easily, thereby improving the adaptability to different installation environments and installation requirements, and ensuring that high-voltage tests can be carried out steadily and reliably. Attached Figure Description

[0017] Figure 1 This is a reference to the assembly state of this application. Figure 1 ;

[0018] Figure 2 This is a reference diagram of the explosion state of this application;

[0019] Figure 3 This is a reference to the assembly state of this application. Figure 2 ;

[0020] In the diagram: 1. Base cover; 11. First step groove; 12. Fixing hole; 13. Flange; 130. Through hole; 14. Mounting hole; 2. Adjusting cover; 21. Second step groove; 22. Adjusting hole; 3. Locking element; 31. Screw; 32. Nut; 33. First pad; 34. Second pad. Detailed Implementation

[0021] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0022] like Figure 1-3 As shown, a lightweight, high-strength, high-pressure testing equipment shield includes a base shield 1 and an adjusting shield 2. Both the base shield 1 and the adjusting shield 2 are cylindrical. The upper inner side of the base shield 1 is provided with a first stepped groove 11, and the lower outer side of the adjusting shield 2 is provided with a second stepped groove 21. The lower part of the adjusting shield 2 is inserted into the upper part of the base shield 1, and the first stepped groove 11 and the second stepped groove 21 engage. A fixing hole 12 is provided on the outer wall of the base shield 1, and the fixing hole 12 communicates with the first stepped groove 11. The outer wall of the adjusting shield 2 is provided with multiple adjusting holes 22, and the adjusting holes communicate with the second stepped groove 21. All of the multiple adjusting holes 22 can be coaxial with the fixing hole 12, and locking members 3 are inserted into the fixing hole 12 and the adjusting hole 22 that are coaxial.

[0023] The first step groove 11 and the second step groove 21 cooperate to allow the adjustment cover 2 to be disassembled into the base cover 1. By selecting different adjustment holes 22 and fixing holes 12 for coaxial adjustment, and locking the adjusted base cover 1 and adjustment cover 2 with locking parts 3, the overall height of the shielding cover can be adjusted quickly and easily, thereby improving the adaptability to different installation environments and installation requirements, and ensuring that high-voltage tests can be carried out steadily and reliably.

[0024] Multiple adjustment holes 22 are spaced apart in the vertical direction, and the fixing hole 12 is connected to the middle of the first step groove 11. This ensures that the up and down movement of the adjustment cover 2 can achieve that different adjustment holes 22 and fixing holes 12 are in a coaxial state, which also ensures that the relative position between the adjustment cover 2 and the base cover 1 can be adjusted.

[0025] The locking component 3 includes a screw 31, a nut 32, a first pad 33, and a second pad 34. One side of the first pad 33 is in contact with the outer wall of the base cover 1, and one side of the second pad 34 is in contact with the inner wall of the adjusting cover 2. The tail of the screw 31 presses against the other side of the first pad 33. Both the first pad 33 and the second pad 34 are provided with through holes for the screw 31 to pass through. The head of the screw 31 passes through the first pad 33, the fixing hole 12, the adjusting hole 22, and the second pad 34 in sequence. The nut 32 is screwed onto the head of the screw 31 and presses against the other side of the second pad 34.

[0026] The placement of the first pad 33 and the second pad 34 ensures that the screw 31 and the nut 32 can be reliably locked without any movement or wear on the adjusting cover 2 and the base cover 1 during the locking process. Specifically, the side of the first pad 33 that is in contact with the base cover 1 is arc-shaped to fit the base cover 1, the side of the second pad 34 that is in contact with the adjusting cover 2 is arc-shaped to fit the adjusting cover 2, while the side of the first pad 33 that is in contact with the screw 31 is flat, and the side of the second pad 34 that is in contact with the nut 32 is flat.

[0027] A flange 13 is provided on the top outer side of the base cover 1 and the top outer side of the adjustment cover 2. The flange 13 has several through holes 130. The several through holes 130 on the two flanges 13 correspond one to one and are coaxial. The two flanges 13 are locked together by screws 31 and nuts 32.

[0028] When the adjusting cover 2 is inserted into the base cover 1, the two flanges 13 are separated. At this time, by selecting different adjusting holes 22 to connect with the fixing holes 12, the overall height of the shield can be finely adjusted. When a large-scale adjustment of the overall height of the shield is required, the adjusting cover 2 can be pulled out from the base cover 1, the two flanges 13 can be connected, and then the two flanges 13 can be locked with screws 31 and nuts 32, thereby fixing the base cover 1 and the adjusting cover 2.

[0029] The lower part of the base cover 1 and the upper part of the adjusting cover 2 are both provided with mounting holes 14. The base cover 1 and the adjusting cover 2 are connected to the mounting column through the mounting holes 14. After the relative positions of the base cover 1 and the adjusting cover 2 are adjusted, they can be connected to the mounting column through the mounting holes 14 to achieve the overall fixation of the shielding cover.

[0030] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. A lightweight, high-strength, high-pressure testing equipment shielding cover, characterized in that, It includes a base cover (1) and an adjustment cover (2), both of which are cylindrical. The base cover (1) has a first step groove (11) on its upper inner side and a second step groove (21) on its lower outer side. The lower part of the adjustment cover (2) is inserted into the upper part of the base cover (1), and the first step groove (11) and the second step groove (21) engage. A fixing hole (12) is provided on the outer wall of the base cover (1), and the fixing hole (12) is connected to the first step groove (11); The outer wall of the adjustment cover (2) is provided with a plurality of adjustment holes (22), and the adjustment holes are connected to the second step groove (21); All of the adjustment holes (22) can be coaxial with the fixing hole (12), and locking members (3) are inserted into the fixing hole (12) and adjustment hole (22) that are coaxial.

2. The lightweight, high-strength, high-pressure testing equipment shielding cover according to claim 1, characterized in that, The plurality of adjustment holes (22) are arranged at intervals in the vertical direction, and the fixing hole (12) is connected to the middle part of the first step groove (11).

3. The lightweight, high-strength, high-pressure testing equipment shielding cover according to claim 2, characterized in that, The locking component (3) includes a screw (31), a nut (32), a first pad (33), and a second pad (34). One side of the first pad (33) is in contact with the outer wall of the base cover (1), and one side of the second pad (34) is in contact with the inner wall of the adjusting cover (2). The tail of the screw (31) presses against the other side of the first pad (33), the head of the screw (31) passes through the first pad (33), the fixing hole (12), the adjusting hole (22) and the second pad (34) in sequence, and the nut (32) is screwed onto the head of the screw (31) and presses against the other side of the second pad (34).

4. The lightweight, high-strength, high-pressure testing equipment shielding cover according to claim 3, characterized in that, Both the first pad (33) and the second pad (34) are provided with through holes for the screw (31) to pass through.

5. A lightweight, high-strength, high-pressure testing equipment shielding cover according to claim 3, characterized in that, A flange (13) is provided on the top outer side of the base cover (1) and the top outer side of the adjustment cover (2). The flange (13) has several through holes (130). The several through holes (130) on the two flanges (13) correspond one-to-one and are coaxial. The two flanges (13) are locked together by the screw (31) and the nut (32).

6. A lightweight, high-strength, high-pressure testing equipment shielding cover according to claim 5, characterized in that, The lower part of the base cover (1) and the upper part of the adjustment cover (2) are provided with mounting holes (14), and the base cover (1) and the adjustment cover (2) are connected to the mounting column through the mounting holes (14).

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