Pressure relief device of high-voltage switch cabinet

Abstract

The utility model relates to the technical field of pressure relief devices, and provides a pressure relief device of a high-voltage switch cabinet, which comprises a device main body, and a fixing device is arranged on the inner wall of the device main body. According to the pressure relief device of the high-voltage switch cabinet, through the arranged special-shaped groove, when the pressure relief device needs to be installed, a positioning ball slides into the special-shaped groove through an opening formed in the special-shaped groove, at the moment, a pressing frame extrudes a push spring, so that the push spring is compressed under stress and continues to be pushed into the pressure relief device, the positioning ball makes contact with the bottom face of the special-shaped groove, and at the moment, the pressure relief device is rotated; the surface of the positioning ball makes contact with the inner wall of the special-shaped groove, the pressure relief device is loosened, the push spring is released to push the pressure relief device to move upwards so as to be clamped into the tail end of the special-shaped groove, fixing of the pressure relief device is completed, and the pressure relief device can be fixed in a simple rotating and clamping mode. Therefore, the pressure relief device is very convenient to mount and dismount. By means of the technical scheme, the problem that in the prior art, a pressure relief device is inconvenient to replace is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure relief devices, and in particular to a pressure relief device for a high-voltage switch cabinet. Background Art

[0002] High-voltage switchgear pressure relief devices play a vital role in the power system. With the development of the power industry, high-voltage switchgear, as a key equipment for power transmission and distribution, has received increasing attention for its safety and stability. During the operation of high-voltage switchgear, due to the operation and failure of internal electrical equipment, excessive pressure may be generated. If the pressure cannot be released in a timely and effective manner, it may cause damage to the equipment and even pose a threat to personnel. Therefore, in order to ensure the normal operation of the pressure relief device, the pressure relief device needs to be replaced in a timely manner.

[0003] At present, most of the pressure relief devices on the market are generally fixed with bolts. Although this method can ensure the stable installation of the equipment, once it needs to be disassembled or replaced, workers have to repeatedly tighten the screws, which is time-consuming and laborious, greatly reducing work efficiency. Especially in key equipment such as high-voltage switchgear, such a disassembly process not only affects the workers' working speed, but also may bring safety hazards due to improper operation. In view of this, we propose a high-voltage switchgear pressure relief device. Utility Model Content

[0004] The utility model provides a high-voltage switch cabinet pressure relief device, which solves the problem that when the pressure relief device in the related art is disassembled and replaced, screws need to be repeatedly screwed, which takes a long time to disassemble and replace, and is not conducive to the efficient work of workers.

[0005] The technical solution of the utility model is as follows:

[0006] In order to achieve the above-mentioned purpose, the utility model proposes a high-voltage switch cabinet pressure relief device, including a device body, the inner wall of the device body is provided with a fixing device, the inner wall of the fixing device is provided with a pressure relief device, and the fixing device includes:

[0007] A special-shaped groove is opened on the inner wall of the device body, the inner wall of the special-shaped groove is slidably connected to the surface of the annular shell, the inner wall of the annular shell is fixedly connected to one end of the spring, and the other end of the spring is fixedly connected to the bottom surface of the sliding ring.

[0008] Preferably, the surface of the sliding ring is slidably connected to the inner wall of the annular shell, and the upper surface of the sliding ring is fixedly connected to the bottom surface of the rubber ring. Through the provision of the rubber ring, when the sliding ring moves upward, the rubber ring fits against the bottom surface of the sealing ring, thereby further enhancing the sealing performance of the fixing device on the pressure relief device.

[0009] Preferably, a bracket is fixedly connected to the inner wall of the device body, and the upper surface of the bracket is fixedly connected to the push spring.

[0010] Preferably, the device body comprises a shell, and the inner wall of the shell is fixedly connected with a transformer body.

[0011] Preferably, the pressure relief device includes a shell, a sealing ring is fixedly connected to the surface of the shell, a cover is fixedly connected to the upper surface of the shell, a positioning ball is fixedly connected to the surface of the shell, and the positioning ball cooperates with the inner wall of the special-shaped groove. Through the arrangement of the positioning ball, when the pressure relief device needs to be fixed, the positioning ball can slide on the inner wall of the special-shaped groove, so that the special-shaped groove can fix the positioning ball, thereby making the installation of the pressure relief device more convenient, and when the push spring pushes the pressure relief device to move, the positioning ball can also push the annular shell to move.

[0012] Preferably, the bottom surface of the cover is fixedly connected to one end of a compression spring, the other end of the compression spring is fixedly connected to the upper surface of the sealing cover, and a pressure frame is fixedly connected to the inner wall of the shell.

[0013] The working principle and beneficial effects of the utility model are:

[0014] 1. In the utility model, the high-voltage switch cabinet pressure relief device is provided with a special-shaped groove. When the pressure relief device needs to be installed, the positioning ball is slid into the interior of the special-shaped groove through the opening of the special-shaped groove. At this time, the pressure frame squeezes the push spring, so that the push spring is compressed and continues to be pushed into the pressure relief device, so that the positioning ball contacts the bottom surface of the special-shaped groove. At this time, the pressure relief device is rotated so that the surface of the positioning ball contacts the inner wall of the special-shaped groove, and the pressure relief device is loosened, so that the push spring is released to push the pressure relief device to move upward, thereby being stuck in the tail end of the special-shaped groove, and the pressure relief device is fixed. The pressure relief device can be fixed by a simple rotation and positioning method, which makes the installation and disassembly of the pressure relief device extremely convenient.

[0015] 2. In the utility model, the pressure relief device of the high-voltage switch cabinet is provided with an annular shell. When the push spring pushes the pressure relief device to move upward to complete the positioning, the positioning ball pushes the annular shell to move upward, so that the annular shell pushes the sliding ring upward through the spring, so that the upper surface of the rubber ring is tightly attached to the bottom surface of the sealing ring, thereby completing the sealing of the pressure relief device and preventing the internal and external environments from being connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2This is a schematic diagram of the overall cross-sectional structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the enlarged structure of A of the utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the pressure relief device of the utility model.

[0021] In the figure: 1. device body; 2. fixing device; 3. pressure relief device; 101. outer shell; 102. transformer body; 201. special-shaped groove; 202. annular shell; 203. spring; 204. sliding ring; 205. rubber ring; 206. bracket; 207. push spring; 301. shell; 302. sealing ring; 303. cover; 304. positioning ball; 305. compression spring; 306. sealing cover; 307. pressure frame. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 4 The utility model proposes a high-voltage switch cabinet pressure relief device, including a device body 1, the device body 1 includes a shell 101, the inner wall of the shell 101 is fixedly connected with a transformer body 102, the inner wall of the device body 1 is provided with a fixing device 2, the inner wall of the fixing device 2 is provided with a pressure relief device 3, the pressure relief device 3 includes a shell 301, the surface of the shell 301 is fixedly connected with a sealing ring 302, the upper surface of the shell 301 is fixedly connected with a cover 303, the surface of the shell 301 is fixedly connected with a positioning ball 304, the positioning ball 304 is matched with the inner wall of the special-shaped groove 201, the bottom surface of the cover 303 is fixedly connected with one end of a compression spring 305, the other end of the compression spring 305 is fixedly connected with the upper surface of the sealing cover 306, and the inner wall of the shell 301 is fixedly connected with a pressing frame 307

[0024] In the example process of the utility model, the fixing device 2 includes: a special-shaped groove 201. Through the special-shaped groove 201, when the pressure relief device 3 needs to be installed, the positioning ball 304 is slid into the interior of the special-shaped groove 201 through the opening of the special-shaped groove 201. At this time, the pressure frame 307 squeezes the push spring 207, so that the push spring 207 is compressed and continues to be pushed into the pressure relief device 3, so that the positioning ball 304 contacts the bottom surface of the special-shaped groove 201. At this time, the pressure relief device 3 is rotated so that the surface of the positioning ball 304 contacts the inner wall of the special-shaped groove 201. Through the positioning ball 304, when the pressure relief device needs to be installed, When the pressure relief device 3 is fixed, the positioning ball 304 can slide on the inner wall of the special-shaped groove 201, so that the special-shaped groove 201 can fix the positioning ball 304, so that the installation of the pressure relief device 3 is more convenient, and when the push spring 207 drives the pressure relief device 3 to move, the positioning ball 304 can also push the annular shell 202 to move, loosen the pressure relief device 3, so that the push spring 207 is released to push the pressure relief device 3 to move upward, so as to be stuck in the tail end of the special-shaped groove 201, and the pressure relief device 3 is fixed. The pressure relief device 3 can be fixed by a simple rotation and positioning method, so that the pressure relief device 3 can be fixed. The installation and disassembly of the device 3 are extremely convenient. The special-shaped groove 201 is opened on the inner wall of the device body 1. The inner wall of the special-shaped groove 201 is slidably connected with the surface of the annular shell 202. The inner wall of the annular shell 202 is fixedly connected with one end of the spring 203. The other end of the spring 203 is fixedly connected with the bottom surface of the sliding ring 204. The surface of the sliding ring 204 is slidably connected with the inner wall of the annular shell 202. Through the set annular shell 202, when the push spring 207 pushes the pressure relief device 3 to move upward to complete the positioning, the positioning ball 304 pushes the annular shell 202 to move upward, so that the annular shell 202 is pushed by the spring 203. The movable sliding ring 204 moves upward, so that the upper surface of the rubber ring 205 is tightly attached to the bottom surface of the sealing ring 302, thereby completing the sealing of the pressure relief device 3 and preventing the internal and external environments from being connected. The upper surface of the sliding ring 204 is fixedly connected to the bottom surface of the rubber ring 205. Through the set rubber ring 205, when the sliding ring 204 moves upward, the rubber ring 205 fits with the bottom surface of the sealing ring 302, thereby further enhancing the sealing performance of the fixing device 2 to the pressure relief device 4. The inner wall of the device body 1 is fixedly connected with a bracket 206, and the upper surface of the bracket 206 is fixedly connected to the push spring 207.

[0025] In the present invention, when the pressure relief device 3 is used, when it is necessary to install the pressure relief device 3, the positioning ball 304 is slid into the interior of the special-shaped groove 201 through the opening of the special-shaped groove 201. At this time, the pressure frame 307 squeezes the push spring 207, so that the push spring 207 is compressed and continues to push the pressure relief device 3, so that the positioning ball 304 contacts the bottom surface of the special-shaped groove 201. At this time, the pressure relief device 3 is rotated so that the surface of the positioning ball 304 contacts the inner wall of the special-shaped groove 201, and the pressure relief device 3 is released. The push spring 207 is released to push the pressure relief device 3 to move upward, thereby getting stuck in the tail end of the special-shaped groove 201, and completing the fixation of the pressure relief device 3. When the push spring 207 pushes the pressure relief device 3 to move upward to complete the positioning, the positioning ball 304 pushes the annular shell 202 to move upward, so that the annular shell 202 pushes the sliding ring 204 to move upward through the spring 203, so that the upper surface of the rubber ring 205 is tightly attached to the bottom surface of the sealing ring 302, thereby completing the sealing of the pressure relief device 3.

[0026] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-voltage switch cabinet pressure relief device, comprising a device body (1), characterized in that: The inner wall of the device body (1) is provided with a fixing device (2), the inner wall of the fixing device (2) is provided with a pressure relief device (3), and the fixing device (2) comprises: A special-shaped groove (201), wherein the special-shaped groove (201) is formed on the inner wall of the device body (1), the inner wall of the special-shaped groove (201) is slidably connected to the surface of the annular shell (202), the inner wall of the annular shell (202) is fixedly connected to one end of a spring (203), and the other end of the spring (203) is fixedly connected to the bottom surface of a sliding ring (204).

2. The high-voltage switch cabinet pressure relief device according to claim 1, characterized in that: The surface of the sliding ring (204) is slidably connected to the inner wall of the annular shell (202), and the upper surface of the sliding ring (204) is fixedly connected to the bottom surface of the rubber ring (205).

3. The high-voltage switch cabinet pressure relief device according to claim 2, characterized in that: A bracket (206) is fixedly connected to the inner wall of the device body (1), and the upper surface of the bracket (206) is fixedly connected to a push spring (207).

4. The high-voltage switch cabinet pressure relief device according to claim 1, characterized in that: The device body (1) comprises a shell (101), and a transformer body (102) is fixedly connected to the inner wall of the shell (101).

5. The high-voltage switch cabinet pressure relief device according to claim 1, characterized in that: The pressure relief device (3) comprises a shell (301), a sealing ring (302) is fixedly connected to the surface of the shell (301), a cover (303) is fixedly connected to the upper surface of the shell (301), and a positioning ball (304) is fixedly connected to the surface of the shell (301), and the positioning ball (304) cooperates with the inner wall of the special-shaped groove (201).

6. The high-voltage switch cabinet pressure relief device according to claim 5, characterized in that: The bottom surface of the cover (303) is fixedly connected to one end of a compression spring (305), the other end of the compression spring (305) is fixedly connected to the upper surface of a sealing cover (306), and a pressure frame (307) is fixedly connected to the inner wall of the housing (301).

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