Switch cabinet with pressure relief structure
By designing a switch cabinet pressure relief structure containing gear transmission and inverted T-block, the problem of limited pressure relief ports in the traditional pressure relief structure is solved, and effective pressure relief and reset use of high temperature and high pressure inside the switch cabinet is achieved, which improves the Performance of switch cabinets.
Patent Information
- Application Number
- CN202421042485.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-14
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-05-14
AI Technical Summary
The pressure relief structure of the traditional switch cabinet has a limited pressure relief port when the fault arc occurs, resulting in the deformation of the pressure relief cover plate and cannot be used.
A pressure relief structure including a switch cabinet body, a sealing plate, a first fixed block, a second fixed block, a rotating shaft, a hook plate, an adjustment port, an adjustment structure, an inverted T-to-block and a gear is designed, and is driven and reversed by a gear. The movement of T-to-block block achieves large opening pressure relief.
It realizes effective pressure relief of high temperature and high pressure inside the switch cabinet, ensures the stable use of the switch cabinet, and can be reset and used, improving the performance of the switch cabinet.
Smart Images
Figure CN222531175U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of switch cabinets, in particular to a switch cabinet with a pressure relief structure. Background Art
[0002] Switchgear is widely used in power systems. In actual operation, internal fault arc accidents often occur due to insulation aging, misoperation, foreign objects, overvoltage and other reasons. Arc burning releases huge energy in a short period of time, causing the gas inside the cabinet to expand and the pressure to increase suddenly, which may cause the cabinet to burst under strong pressure and even cause a fire.
[0003] The pressure relief method of the traditional switch cabinet is to install a pressure relief cover on each compartment of the switch cabinet, one end of which is fixed with a metal screw and the other end is fixed with a nylon screw. When a fault arc occurs, the nylon screw disconnects to release the pressure in time. However, one end of the pressure relief cover is fixed by a metal screw. When a fault arc occurs, the pressure relief port opened by the pressure relief cover is limited, which can easily cause the pressure relief cover to deform and cannot be used anymore. Therefore, improvements are needed to address the above problems. Utility Model Content
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a switch cabinet with a pressure relief structure, comprising a switch cabinet body and a sealing plate, two first fixed blocks are fixedly installed on the upper part of one side of the switch cabinet body, two second fixed blocks are fixedly installed on one side of the bottom of the sealing plate, the two second fixed blocks are connected to the two first fixed blocks by a rotating shaft, a hook plate is fixedly installed on the middle part of one end of the sealing plate, an adjustment port is opened on the upper part of the other side of the switch cabinet body, an adjustment structure is installed inside the adjustment port, an adjustable inverted T-block is installed on the upper part of the other side of the switch cabinet body, one end of the inverted T-block is movably engaged with the lower part of the hook plate, the upper part of the other side of the switch cabinet body is rotatably connected with a gear, and the inverted T-block and the adjustment structure are both connected to the gear transmission.
[0005] Preferably, a sealing ring is fixedly installed on the top of the switch cabinet body, the adjustment structure includes a movable plate located inside the adjustment port, a rubber expansion ring is fixedly connected between the inside of the adjustment port and one side of the movable plate, and a first tooth plate is fixedly installed in the middle of the other side of the movable plate, and the first tooth plate is meshingly connected to the gear.
[0006] Preferably, a hollow block is fixedly installed on the upper part of the other side of the switch cabinet body, and an inverted T-block is movably installed inside the hollow block. A first spring is fixedly connected between the other end of the inverted T-block and the inside of the hollow block, and a second tooth plate is fixedly connected to the top of the inverted T-block, which is meshingly connected to the gear. A compression slope is provided in the middle of one end of the inverted T-block, and an extrusion slope matching the compression slope is provided at the bottom of the hook plate.
[0007] Preferably, an inner cylinder is fixedly installed on the upper part of one side of the switch cabinet body, an inverted T-shaped block is movably inserted into the top of the inner cylinder, a second spring is fixedly installed between the bottom of the inverted T-shaped block and the bottom of the inner cylinder, and a pressure plate is fixedly installed on the top of the inverted T-shaped block, and the pressure plate is located below the other end of the sealing plate.
[0008] Compared with the prior art, the beneficial effects of the utility model are as follows: by providing a switch cabinet body, a sealing plate, a first fixed block, a second fixed block, a rotating shaft, a hook plate, an adjustment port, an adjustment structure, an inverted T-block and a gear, the switch cabinet has a stable large-opening pressure relief structure, which can effectively relieve the high temperature and high pressure inside the switch cabinet, thereby effectively ensuring the stable use of the switch cabinet, and the pressure relief structure can be effectively reset, thereby effectively improving the use performance of the switch cabinet, and at the same time, the pressure relief structure is simple in design, convenient and easy to use, and the pressure relief is stable and reliable, and its performance can meet the use requirements of the switch cabinet. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.
[0010] In the attached picture:
[0011] Figure 1 This is a schematic cross-sectional view of the switch cabinet with a pressure relief structure of the utility model;
[0012] Figure 2 For this utility model Figure 1 The local structure of Figure 1 ;
[0013] Figure 3 For this utility model Figure 1 The local structure of Figure 2 ;
[0014] In the figure: 1. switch cabinet body; 2. sealing plate; 3. first fixed block; 4. second fixed block; 5. rotating shaft; 6. hook plate; 7. adjustment port; 8. adjustment structure; 9. inverted T-shaped block; 10. gear; 11. sealing ring; 12. moving plate; 13. rubber expansion ring; 14. first tooth plate; 15. hollow block; 17. first spring; 18. second tooth plate; 19. pressure inclined surface; 20. inner cylinder; 21. inverted T-shaped block; 22. second spring; 23. pressure plate. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0016] The switch cabinet has a stable large-opening pressure relief structure, which can effectively relieve the high temperature and high pressure inside the switch cabinet, thereby effectively ensuring the stable use of the switch cabinet, and the pressure relief structure can be effectively reset, thereby effectively improving the performance of the switch cabinet.
[0017] Depend on Figures 1 to 3 It is given that the utility model includes a switch cabinet body 1 with an open structure at the top and a sealing plate 2 which is rotatably adjusted and located at the top of the switch cabinet body 1, two first fixed blocks 3 are fixedly installed on the upper part of one side of the switch cabinet body 1, and two second fixed blocks 4 are fixedly installed on one side of the bottom of the sealing plate 2, and the two second fixed blocks 4 are connected to the two first fixed blocks 3 by a rotating shaft 5, and a hook plate 6 is fixedly installed in the middle part of one end of the sealing plate 2, and an adjustment port 7 is opened on the upper part of the other side of the switch cabinet body 1, and an adjustment structure 8 is installed inside the adjustment port 7, and an adjustable inverted T-block 9 is installed on the upper part of the other side of the switch cabinet body 1, and one end of the inverted T-block 9 is movably engaged with the lower part of the hook plate 6, and the upper part of the other side of the switch cabinet body 1 is rotatably connected with a gear 10, and the inverted T-block 9 and the adjustment structure 8 are both transmission-connected with the gear 10.
[0018] An inner cylinder 20 is fixedly installed on the upper part of one side of the switch cabinet body 1, and an inverted T-shaped block 21 is movably inserted on the top of the inner cylinder 20. A second spring 22 is fixedly installed between the bottom of the inverted T-shaped block 21 and the bottom of the inner cylinder 20. A pressure plate 23 is fixedly installed on the top of the inverted T-shaped block 21. The pressure plate 23 is located below the other end of the sealing plate 2, so that it can effectively buffer the sealing plate 2 that is opened for pressure relief and avoid damage to the sealing plate 2; when the sealing plate 2 is pushed open by the high pressure inside the switch cabinet body 1, the rotation of the sealing plate 2 will squeeze the pressure plate 23, so that the pressure plate 23 squeezes the inverted T-shaped block 21 to compress the second spring 22 inside the inner cylinder 20, thereby protecting the sealing plate 2.
[0019] A sealing ring 11 is fixedly installed on the top of the switch cabinet body 1, and the adjustment structure 8 includes a movable plate 12 located inside the adjustment port 7, a rubber expansion ring 13 is fixedly connected between the inside of the adjustment port 7 and one side of the movable plate 12, and a first tooth plate 14 is fixedly installed in the middle of the other side of the movable plate 12, and the first tooth plate 14 is meshed with the gear 10, so that the high pressure inside the switch cabinet body 1 can be effectively utilized for adjustment, and a hollow block 15 is fixedly installed on the upper part of the other side of the switch cabinet body 1, and the inverted T-block 9 is movably installed inside the hollow block 15, and a first spring 17 is fixedly connected between the other end of the inverted T-block 9 and the inside of the hollow block 15, and a second tooth plate 18 is fixedly connected to the top of the inverted T-block 9, and the second tooth plate 18 is meshed with the gear 10, and a pressure inclined surface 19 is provided in the middle of one end of the inverted T-block 9, and an extrusion inclined surface matching the pressure inclined surface 19 is provided at the bottom of the hook plate 6, so that the sealing plate 2 can be effectively opened.
[0020] When high pressure is generated inside the switch cabinet body 1, the moving plate 12 will be pushed to move and the rubber expansion ring 13 will be stretched. The movement of the moving plate 12 will push the first tooth plate 14 to move and rotate the gear 10. The rotation of the gear 10 will drive the second tooth plate 18 to move and drive the inverted T-shaped block 9 to move. The movement of the inverted T-shaped block 9 will compress the first spring 17, and the movement of the inverted T-shaped block 9 will separate from the hook plate 6.
[0021] When the inverted T-butt block 9 is separated from the hook plate 6, the high pressure inside the switch cabinet body 1 squeezes the sealing plate 2, causing the sealing plate 2 to automatically rotate open and release pressure through the top of the switch cabinet body 1. The opening structure on the top of the switch cabinet body 1 is large and the pressure release is fast. After the pressure release is completed, the hook plate 6 is moved downward by manually pressing the sealing plate 2 to squeeze the compressed inclined surface 19, and at the same time, the inverted T-butt block 9 is used to fix the hook plate 6 again through the first spring 17.
[0022] At the same time, the pressure relief structure is simple in design, easy to use, and has stable and reliable pressure relief, and its performance can meet the use requirements of the switch cabinet.
Claims
1. A switch cabinet with a pressure relief structure, comprising a switch cabinet body (1) with an open top structure and a sealing plate (2) rotatably adjustable at the top of the switch cabinet body (1), characterized in that: Two first fixing blocks (3) are fixedly installed on the upper part of one side of the switch cabinet body (1), and two second fixing blocks (4) are fixedly installed on one side of the bottom of the sealing plate (2). The two second fixing blocks (4) and the two first fixing blocks (3) are connected via a rotating shaft (5). A hook plate (6) is fixedly installed in the middle of one end of the sealing plate (2). An adjustment opening (7) is opened on the upper part of the other side of the switch cabinet body (1), and an adjustment structure (8) is installed inside the adjustment opening (7). An adjustable inverted T-shaped block (9) is installed on the upper part of the other side of the switch cabinet body (1), and one end of the inverted T-shaped block (9) is movably engaged with the lower part of the hook plate (6). A gear (10) is rotatably connected to the upper part of the other side of the switch cabinet body (1), and the inverted T-shaped block (9) and the adjustment structure (8) are both transmission-connected to the gear (10).
2. The switch cabinet with a pressure relief structure according to claim 1, characterized in that: A sealing ring (11) is fixedly installed on the top of the switch cabinet body (1); the adjustment structure (8) includes a movable plate (12) located inside the adjustment port (7); a rubber expansion ring (13) is fixedly connected between the inside of the adjustment port (7) and one side of the movable plate (12); a first tooth plate (14) is fixedly installed in the middle of the other side of the movable plate (12); and the first tooth plate (14) is meshingly connected with the gear (10).
3. The switch cabinet with a pressure relief structure according to claim 2, characterized in that: A hollow block (15) is fixedly installed on the upper part of the other side of the switch cabinet body (1), and an inverted T-block (9) is movably installed inside the hollow block (15). A first spring (17) is fixedly connected between the other end of the inverted T-block (9) and the inside of the hollow block (15). A second tooth plate (18) is fixedly connected to the top of the inverted T-block (9), and the second tooth plate (18) is meshingly connected to the gear (10). A pressure inclined surface (19) is provided in the middle of one end of the inverted T-block (9), and an extrusion inclined surface matching the pressure inclined surface (19) is provided at the bottom of the hook plate (6).
4. The switch cabinet with a pressure relief structure according to claim 1, characterized in that: An inner cylinder (20) is fixedly mounted on the upper part of one side of the switch cabinet body (1); an inverted T-shaped block (21) is movably inserted into the top of the inner cylinder (20); a second spring (22) is fixedly mounted between the bottom of the inverted T-shaped block (21) and the bottom of the inner cylinder (20); a pressure plate (23) is fixedly mounted on the top of the inverted T-shaped block (21); and the pressure plate (23) is located below the other end of the sealing plate (2).