Dustproof solid-sealed polar pole

Abstract

The utility model relates to the technical field of electrical equipment, and provides a dustproof solid-sealed polar pole which is stable in line connection and good in dustproof effect, the dustproof solid-sealed polar pole comprises an insulating shell and a vacuum arc-extinguishing chamber arranged in the insulating shell, one end of the vacuum arc-extinguishing chamber is provided with an access conductive pole, and the other end of the vacuum arc-extinguishing chamber is provided with an outgoing conductive pole. A dustproof connector is arranged at the access end of the access conductive column and comprises a connecting square column fixedly connected with the access conductive column and a fixing piece arranged on the outer wall of the connecting end of the connecting square column and the access conductive column, and a shielding plate is movably clamped on the fixing piece. And the shielding plate on the connecting square column covers the surface of the connecting square column to isolate the connecting square column from the outside.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a dustproof solid-sealed pole. Background Art

[0002] The sealed pole is formed by embedding the vacuum interrupter and the conductive parts related to the circuit breaker into easily solidified solid insulating materials such as epoxy resin or thermoplastic materials, so that the entire circuit breaker becomes an integral component. The sealed pole is modularly designed with a simple structure and fewer detachable parts, thus having high reliability. At the same time, it has extremely high insulating rod capacity and reduces the size of the circuit breaker, which is conducive to the miniaturization of electrical equipment such as switch cabinets.

[0003] Although the above-mentioned existing technology can solve the corresponding technical problems, it still has certain defects: although the vacuum arc chamber and circuit breaker inside the existing sealed pole are covered in insulating materials such as epoxy resin, the ports at both ends connected to the line are exposed to the air. If the sealed pole is used in test product equipment, the line is often replaced at the terminal position. Since the terminal position of the sealed pole is easily attached to dust in the air through static electricity and is not covered by insulating material, it is easy to cause a lot of dust to adhere to the terminal after a long period of use. After connecting to the line, it is easy to cause the connection between the sealed pole and the line to be unstable due to dust, affecting the use effect of the sealed pole. Utility Model Content

[0004] The utility model aims to provide a dustproof solid-sealed pole with stable line connection and good dustproof effect in view of the defects and shortcomings of the prior art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a dust-proof sealed pole, comprising an insulating shell and a vacuum arc extinguishing chamber arranged in the insulating shell, one end of the vacuum arc extinguishing chamber is provided with an access conductive column, the other end of the vacuum arc extinguishing chamber is provided with an access conductive column, the access end of the access conductive column is provided with a dust-proof joint, the dust-proof joint comprises a connecting square column fixedly connected to the access conductive column and a fixing plate arranged on the outer wall of the connecting end of the connecting square column and the access conductive column, a shielding plate is movably engaged on the fixing plate, and when not in use and after use, the shielding plate on the connecting square column covers its surface to isolate the connecting square column from the outside world.

[0006] A further improvement is that an elastic sheet is provided between the surface of the shielding plate away from the connection with the square pillar and the fixing sheet.

[0007] A further improvement is that a mounting block is also provided on the top of the insulating shell.

[0008] A further improvement is that the shielding plate comprises a shielding plate body attached to the outer wall of the square column and a twisting head fixedly connected between the outer wall and the end of the shielding plate body, and the shielding plate body is movably engaged with the fixing plate through the twisting head.

[0009] A further improvement is that: an extrusion plate is slidably provided on the outer wall of the twisting head, and a plurality of jet bags made of elastic material are embedded through the shielding plate body.

[0010] A further improvement is that a diffusion nozzle is provided on the top of the jet bag.

[0011] A further improvement is that an impact ball is also provided on one side of the end of the extrusion plate close to the shielding plate body.

[0012] After adopting the above technical scheme, the beneficial effect of the utility model is as follows: when the utility model is not in use, the surface of the connecting square column can be covered by a shielding plate to prevent dust from falling. When in use, it is necessary to first push open the shielding plate and then connect the line to the connecting square column. After removing the line, the shielding plate is pressed back into the surface of the connecting square column to shield while squeezing the jet bag on the shielding plate body to spray air, thereby blowing off the dust on the surface of the connecting square column, thereby preventing a large amount of dust from adhering to the surface of the connecting square column after long-term use, thereby ensuring the connection effect and stability between the connecting square column and the line. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 This is a schematic diagram of the structure of the front cross section of the solid-sealed pole of the utility model;

[0015] Figure 2 It is a structural schematic diagram of a front view cross section of the dustproof joint of the utility model;

[0016] Figure 3 It is a structural schematic diagram of a front view cross section of the shielding plate of the utility model. DETAILED DESCRIPTION

[0017] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.

[0018] See also Figure 1-3As shown, the technical solution adopted in this specific embodiment is: a dust-proof solid-sealed pole, comprising an insulating shell 1 and a vacuum interrupter 2 arranged in the insulating shell 1, one end of the vacuum interrupter 2 is provided with an access conductive column 5, and the other end of the vacuum interrupter 2 is provided with an access conductive column 6, and the access end of the access conductive column 5 is provided with a dust-proof joint 4, and the dust-proof joint 4 includes a connecting square column 41 fixedly connected to the access conductive column 5 and a fixing sheet 44 arranged on the outer wall of the connecting end of the connecting square column 41 and the access conductive column 5, the The fixing plate 44 is movably engaged with a shielding plate 42, and the shielding plate 42 includes a shielding plate body 422 attached to the outer wall of the connecting square column 41 and a twisting head 425 fixedly connected to the outer wall and the end of the shielding plate body 422. The shielding plate body 422 is movably engaged with the fixing plate 44 through the twisting head 425. When not in use and after use, the shielding plate 42 on the connecting square column 41 covers its surface to isolate the connecting square column 41 from the outside. When in use, the line is connected to the dustproof connector 4, and the current is sent to the connecting connector through the dustproof connector 4. The conductive column 5 is connected to the other end of the line to the lead-out conductive column 5. Under the isolation effect of the vacuum interrupter 2, electric sparks are avoided when the current in the line is cut off. When the line is not connected, the shielding plate body 422 of the shielding plate 42 is twisted by the twisting head 425 to adjust the angle so that it covers the outer surface of the connecting square column 41 to prevent dust from falling on the connecting square column 41 when not in use. When in use, the shielding plate body 422 is lifted up, and then the shielding plate body 422 is twisted upward along the twisting head 425. The connecting square column 41 is exposed, and the line can be connected to the connecting square column 41, and the current is introduced into the connecting conductive column 5 through the connecting square column 41. After use, the line is removed from the connecting square column 41, and the shielding plate 422 can be pressed down again to cover the surface of the connecting square column 41 again, shielding the surface of the connecting square column 41, avoiding a large amount of dust from adhering to the surface of the connecting square column 41 after long-term use, and ensuring the connection effect and stability between the connecting square column 41 and the line;

[0019] An elastic sheet 43 is also provided between the surface of the shielding plate 42 away from the connecting square column 41 and the fixing sheet 44, which is conducive to squeezing the elastic sheet 43 to generate elastic force after the shielding plate 42 is lifted up, so that after the line is connected and the shielding plate 42 is released, it can be quickly restored by the elastic sheet 43 and pressed on the line, so that the connection between the line and the connecting square column 41 is more firmly established;

[0020] The top of the insulating housing 1 is also provided with a mounting block 3, which is conducive to making the installation of the sealed pole more convenient;

[0021] The outer wall of the twisting head 425 is also slidably provided with an extrusion plate 421, and the shielding plate body 422 is penetrated and embedded with a plurality of jet bags 423 made of elastic material. In this embodiment, three jet bags 423 are provided, which is conducive to the synchronous extrusion of the jet bags 423 when the extrusion plate 421 is pressed in to make the shielding plate body 422 fit the surface of the connecting square column 41, so that the jet bags 423 generate gas and spray it on the surface of the connecting square column 41, thereby blowing away the dust on the surface of the connecting square column 41, and further improving the dustproof performance;

[0022] The top of the jet bag 423 is provided with a diffusion nozzle 424, which is conducive to expanding the range of the blown air;

[0023] An impact ball 426 is also provided on one side of the end of the extrusion plate 421 close to the shielding plate body 422, which is beneficial for the impact ball 426 to hit the surface of the shielding plate body 422 after the extrusion plate 421 squeezes the jet bag 423, thereby causing the shielding plate body 422 to vibrate, and transmit the shaking to the connecting square column 41, so that it shakes off the attached dust, further enhancing the dustproof performance.

[0024] Working principle of the utility model: When the utility model is used, the line is connected to the dustproof joint 4, and the current is sent to the access conductive column 5 through the dustproof joint 4. At the same time, the other end of the line is connected to the access conductive column 5. Under the isolation effect of the vacuum arc extinguishing chamber 2, electric sparks are avoided when the current in the line is cut off. When the line is not connected, the shielding plate body 422 of the shielding plate 42 is twisted by the twisting head 425 to adjust the angle so that it covers the outer surface of the connecting square column 41 to prevent dust from falling on the connecting square column 41 when not in use. When in use, the shielding plate body 422 is lifted up. , and then the shielding plate body 422 is twisted and lifted upward along the twisting head 425, thereby exposing the connecting square column 41, and then the line can be connected to the connecting square column 41, and then the current is introduced into the connecting conductive column 5 through the connecting square column 41. After use, the line is removed from the connecting square column 41, and the shielding plate body 422 can be pressed down again at this time to make it cover the surface of the connecting square column 41 again, shielding the surface of the connecting square column 41, avoiding a large amount of dust from adhering to the surface of the connecting square column 41 after long-term use, and ensuring the connection effect and stability between the connecting square column 41 and the line.

[0025] The utility model is intended to protect the structure of the product. The model of each component is not the content of the utility model, and it is also a known technology. Any component on the market that can achieve the above functions of the utility model can be used as a choice. Therefore, the model and other parameters of the component are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of various components.

[0026] The above shows and describes the basic principle and main features and 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 of the utility model is defined by the attached claims and their equivalents. Anything not described in detail in the utility model is a well-known technology of those skilled in the art.

Claims

1. A dustproof sealed pole, comprising an insulating shell (1) and a vacuum interrupter (2) arranged in the insulating shell (1), wherein one end of the vacuum interrupter (2) is provided with an incoming conductive column (5), and the other end of the vacuum interrupter (2) is provided with an outgoing conductive column (6), characterized in that: The access end of the access conductive column (5) is provided with a dustproof joint (4), the dustproof joint (4) comprising a connection square column (41) fixedly connected to the access conductive column (5) and a fixing plate (44) arranged on the outer wall of the connection end between the connection square column (41) and the access conductive column (5), the fixing plate (44) being movably engaged with a shielding plate (42), and when not in use and after use, the shielding plate (42) on the connection square column (41) covers its surface so that the connection square column (41) is isolated from the outside.

2. The dustproof sealed pole according to claim 1, characterized in that: An elastic sheet (43) is also provided between the surface of the shielding plate (42) away from the connection square column (41) and the fixing sheet (44).

3. The dustproof sealed pole according to claim 1, characterized in that: A mounting block (3) is also provided on the top of the insulating housing (1).

4. The dustproof sealed pole according to claim 2, characterized in that: The shielding plate (42) comprises a shielding plate body (422) attached to the outer wall of the connecting square column (41) and a twisting head (425) fixedly connected to the outer wall and the end of the shielding plate body (422); the shielding plate body (422) is movably engaged with the fixing plate (44) via the twisting head (425).

5. The dustproof sealed pole according to claim 4, characterized in that: The outer wall of the twisting head (425) is also slidably provided with an extrusion plate (421), and a plurality of jet bags (423) made of elastic material are penetrated and embedded in the shielding plate body (422).

6. The dustproof sealed pole according to claim 5, characterized in that: A diffusion nozzle (424) is provided on the top of the jet bag (423).

7. The dustproof sealed pole according to claim 5, characterized in that: An impact ball (426) is also provided on one surface of the end portion of the squeezing plate (421) close to the shielding plate body (422).

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