Explosion-proof intermediate frequency power supply cabinet
By introducing explosion-proof support components and sealed cabinet doors into the intermediate frequency power supply cabinet, the risk of explosion caused by dust accumulation during heat dissipation and ventilation is solved, achieving efficient pressure relief and explosion prevention, and reducing the loss of personnel and property caused by explosions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- JIANGSU EASTONE TECH
- Filing Date
- 2025-02-21
- Publication Date
- 2026-07-28
AI Technical Summary
Existing medium-frequency power supply cabinets are prone to drawing in dust during the heat dissipation and ventilation process, which may lead to the risk of dust and flammable gas explosions and cause damage to personnel and property.
An explosion-proof intermediate frequency power supply cabinet was designed, which adopts explosion-proof support components and sealed cabinet door components. The explosion-proof support components buffer the cabinet door to open in the event of a deflagration, allowing the depressurized gas to be ejected upwards, reducing the damage to the surrounding area caused by the explosion. The cabinet also uses ventilation, heat dissipation and dehumidification components for heat dissipation and dehumidification.
It significantly improves pressure relief and explosion-proof performance, reduces the loss of personnel and property caused by explosions, and ensures the safety and reliability of the power cabinet.
Smart Images
Figure CN120090067B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of power supply cabinet technology, and more specifically, to an explosion-proof intermediate frequency power supply cabinet. Background Technology
[0002] Medium frequency power supply cabinets are power system equipment that integrates centralized control, protection, power distribution, and monitoring. They are mainly used for the input, output, and control of load power, including functions such as power conversion, filtering, voltage stabilization, backup, and DC power supply. They are typically installed in the control room or around the equipment and are used in conjunction with controllers, PLCs, or frequency converters to provide the power required by the control equipment.
[0003] Because intermediate frequency power supply cabinets generate a large amount of heat during operation, requiring heat dissipation and ventilation, existing cabinets may draw dust into the cabinet during this process. This can lead to poor ventilation and dust accumulation, increasing the risk of dust and flammable gas explosions. Such explosions could damage people and property in the vicinity of the cabinet. Therefore, designing an explosion-proof intermediate frequency power supply cabinet with pressure relief capabilities is of significant practical value. Summary of the Invention
[0004] To overcome the above-mentioned defects, the present invention provides an explosion-proof intermediate frequency power supply cabinet, specifically adopting the following technical solution: An explosion-proof intermediate frequency power supply cabinet includes: A power cabinet, comprising a power cabinet body and a support base, wherein the support base provides support on the power cabinet body; An explosion-proof cabinet door component is installed on the power cabinet. The explosion-proof cabinet door component includes an explosion-proof support component and a sealing cabinet door component. The explosion-proof support component is on the power cabinet body and provides explosion-proof buffer support for the connected sealing cabinet door component. The sealing cabinet door component seals and relieves explosion-proof pressure by using the explosion-proof support component to block the slot of the power cabinet body. A ventilation, heat dissipation, and dehumidification component is installed on the power cabinet to provide ventilation and heat dissipation for the electrical components inside the power cabinet.
[0005] Preferably, the explosion-proof support includes a first explosion-proof support and a second explosion-proof support, both of which are mounted on the power cabinet.
[0006] Preferably, the first explosion-proof support includes a first explosion-proof upper support, a first explosion-proof middle support, and a first explosion-proof lower support, all of which are disposed on a groove wall on one side of the power cabinet.
[0007] Preferably, the first explosion-proof upper support includes an explosion-proof transmission support, an explosion-proof buffer, an explosion-proof hinge, and a buffer adjustment component. The explosion-proof transmission support is disposed on the power cabinet, the explosion-proof buffer and the buffer adjustment component are both disposed on the explosion-proof transmission support, and the explosion-proof hinge is disposed on the explosion-proof buffer.
[0008] Preferably, the explosion-proof transmission support includes an explosion-proof support base, which is disposed on the upper part of the groove wall on one side of the power cabinet and is used to provide support for the explosion-proof buffer and the buffer adjustment component.
[0009] Preferably, the explosion-proof buffer component includes an explosion-proof buffer tube, an explosion-proof buffer shaft, an explosion-proof slide, an explosion-proof guide tube, and a spring. The explosion-proof buffer tube is axially and slidably fitted into the other end of the explosion-proof support. One end of the explosion-proof buffer shaft is inserted into the other end of the explosion-proof buffer tube. The explosion-proof slide is axially and slidably fitted into the explosion-proof buffer tube, and one end of the explosion-proof slide is connected to one end of the explosion-proof buffer shaft. The explosion-proof guide tube is fixedly fitted into the other end of the explosion-proof buffer tube, and the explosion-proof guide tube is axially and slidably fitted onto the explosion-proof buffer shaft. The spring is sleeved on the outside of the explosion-proof buffer shaft between the explosion-proof slide and the explosion-proof guide tube.
[0010] Preferably, the explosion-proof hinge includes a hinge seat, a hinge ball, and a hinge cover plate. The hinge seat is disposed on the sealed cabinet door component, the hinge ball is hinged to the hinge seat through the hinge cover plate, and the hinge ball is fixedly connected to the other end of the explosion-proof buffer shaft.
[0011] Preferably, the buffer adjustment component includes an adjustment power component and an axial limiting component, both of which are disposed on the explosion-proof transmission support component; the adjustment power component includes a motor, an internally threaded tube, and a screw; the motor is disposed on one end face of the explosion-proof support base; the internally threaded tube is fixedly inserted through one end face of the explosion-proof buffer tube; one end of the screw rotates through one end face of the explosion-proof support base and is connected to the rotating shaft of the motor; the other end of the screw is fitted into the internally threaded tube.
[0012] Preferably, the first explosion-proof middle support member has the same structure as the first explosion-proof upper support member, and the first explosion-proof middle support member is disposed on the side wall of the power cabinet directly below the first explosion-proof upper support member and connected to the sealed cabinet door member; and the connection method between the first explosion-proof middle support member and the sealed cabinet door member is the same as that between the first explosion-proof upper support member and the sealed cabinet door member; the first explosion-proof lower support member has the same structure as the first explosion-proof upper support member, and the first explosion-proof lower support member is disposed on the side wall of the power cabinet directly below the first explosion-proof middle support member and connected to the sealed cabinet door member; and the connection method between the first explosion-proof lower support member and the sealed cabinet door member is the same as that between the first explosion-proof upper support member and the sealed cabinet door member; the second explosion-proof support member has the same structure as the first explosion-proof support member, and the second explosion-proof support member is disposed on the other side wall of the power cabinet, and the second explosion-proof support member is symmetrical to the first explosion-proof support member.
[0013] Preferably, the sealed cabinet door component includes a cabinet door and a cabinet door lock. The cabinet door is mounted on the first explosion-proof support member, and the cabinet door lock is mounted on the cabinet door. One side of the cabinet door is connected to the hinge seats of the first explosion-proof upper support member, the first explosion-proof middle support member, and the first explosion-proof lower support member, respectively. The cabinet door lock includes a bolt, a locking seat, and a locking opening and closing member. The bolt is mounted on the hinge seat of the second explosion-proof support member, the locking seat is mounted on the cabinet door, and the locking opening and closing member can lock with the bolt on the locking seat.
[0014] The present invention has at least the following beneficial effects: 1) The explosion-proof medium-frequency power supply cabinet of this invention has a reasonable structural design, high pressure relief efficiency, and good explosion-proof effect, which can significantly reduce personnel and property losses caused by internal deflagration in the power supply cabinet; 2) The explosion-proof intermediate frequency power cabinet of the present invention is equipped with explosion-proof support components and cabinet doors. When a deflagration occurs inside the power cabinet, the deflagration gas pushes the cabinet door open from the top through the buffering effect of the explosion-proof support components, allowing the deflagration gas to spray upwards to release pressure, thereby preventing the cabinet door from being pushed out and the high-speed spray of the deflagration gas from causing damage to surrounding personnel and property; it significantly improves the pressure relief and explosion-proof effect, and significantly reduces personnel and property losses.
[0015] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description
[0016] Figure 1 This is a front view of the explosion-proof intermediate frequency power supply cabinet of the present invention; Figure 2This is a three-dimensional structural diagram of the left side of the explosion-proof intermediate frequency power supply cabinet of the present invention; Figure 3 This is a three-dimensional structural diagram of the right side of the explosion-proof intermediate frequency power supply cabinet of the present invention; Figure 4 This invention relates to an explosion-proof intermediate frequency power supply cabinet. Figure 3 A magnified view of part B in the image; Figure 5 This is a three-dimensional structural diagram of the rear side of the explosion-proof intermediate frequency power supply cabinet of the present invention; Figure 6 This invention relates to an explosion-proof intermediate frequency power supply cabinet. Figure 5 A magnified view of part C; Figure 7 This invention relates to an explosion-proof intermediate frequency power supply cabinet. Figure 1 Schematic diagram of the three-dimensional structure in the AA direction section; Figure 8 This invention relates to an explosion-proof intermediate frequency power supply cabinet. Figure 7 A magnified view of part D; Figure 9 This is a schematic diagram showing the connection relationship of the cabinet door lock in the explosion-proof medium-frequency power supply cabinet of the present invention.
[0017] The components are: 1-Power cabinet, 2-Support base, 3-Second explosion-proof support, 4-First explosion-proof middle support, 5-First explosion-proof lower support, 6-Explosion-proof support base, 7-Explosion-proof buffer tube, 8-Explosion-proof buffer shaft, 9-Explosion-proof slide, 11-Spring, 12-Hinge base, 13-Hinge ball, 14-Motor, 15-Internal threaded tube, 16-Screw, 17-Limit support plate, 18-Thrust ball bearing, 19-Limit rotating plate, 20-Cabinet door, 21-Lock bolt, 22-Locking base, 23-Locking spring, 24-Lock tongue, 25-Cooling fan, 26-Dehumidification through hole. Detailed Implementation
[0018] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and by way of embodiments. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.
[0019] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another type of relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.
[0020] according to Figures 1-9As shown, an explosion-proof intermediate frequency power supply cabinet includes a power supply cabinet, an explosion-proof cabinet door component, and a ventilation, heat dissipation, and dehumidification component. Both the explosion-proof cabinet door component and the ventilation, heat dissipation, and dehumidification component are mounted on the power supply cabinet. The power supply cabinet includes a cabinet body 1 and a support base 2. The cabinet body 1 is rectangular and box-shaped, while the support base 2 is rectangular and tubular. The cross-sectional dimension of the support base 2 is smaller than the bottom surface dimension of the cabinet body 1. One end of the support base 2 is fixedly mounted on the bottom surface of the cabinet body 1, allowing the cabinet body 1 to be mounted on the ground via the support base 2. Electrical components are installed inside the cabinet body 1. It should be noted that the support base 2, in conjunction with the ventilation, heat dissipation, and dehumidification component, can dehumidify the lower part of the cabinet body 1, preventing corrosion of the bottom of the cabinet body 1.
[0021] The explosion-proof cabinet door component includes an explosion-proof support component and a sealing cabinet door component. The explosion-proof support component is mounted on the power cabinet 1, and the sealing cabinet door component is mounted on the explosion-proof support component. The explosion-proof support component includes a first explosion-proof support component and a second explosion-proof support component 3, both of which are mounted on the power cabinet 1.
[0022] The first explosion-proof support includes a first explosion-proof upper support, a first explosion-proof middle support 4, and a first explosion-proof lower support 5. All three supports are mounted on a groove wall on one side of the power cabinet 1. The first explosion-proof upper support includes an explosion-proof transmission support, an explosion-proof buffer, an explosion-proof hinge, and a buffer adjustment component. The explosion-proof transmission support is mounted on the power cabinet 1. The explosion-proof buffer and the buffer adjustment component are both mounted on the explosion-proof transmission support, and the explosion-proof hinge is mounted on the explosion-proof buffer.
[0023] The explosion-proof transmission support includes an explosion-proof support base 6, which is in the shape of a square tube. One end of the explosion-proof support base 6 is closed. The explosion-proof support base 6 is horizontally fixed on the upper part of the groove wall on one side of the power cabinet 1, and is used to provide support for the explosion-proof buffer and the buffer adjustment.
[0024] The explosion-proof buffer component includes an explosion-proof buffer tube 7, an explosion-proof buffer shaft 8, an explosion-proof slide 9, an explosion-proof guide tube, and a spring 11. The explosion-proof buffer tube 7 is axially and slidably fitted into the other end of the explosion-proof support 6. Further, the length of the explosion-proof buffer tube 7 is less than the length of the explosion-proof support 6, and one end of the explosion-proof buffer tube 7 is closed. One end of the explosion-proof buffer shaft 8 is inserted into the other end of the explosion-proof buffer tube 7. Further, the inner diameter of the explosion-proof buffer shaft 8 is smaller than the inner diameter of the explosion-proof buffer tube 7. The explosion-proof slide 9 is axially and slidably fitted into the explosion-proof buffer tube 7, and one end of the explosion-proof slide 9 is fixedly connected to one end of the explosion-proof buffer shaft 8. Further, the outer diameter of the explosion-proof slide 9 is not greater than the inner diameter of the explosion-proof buffer. The explosion-proof guide tube is fixedly fitted into the other end of the explosion-proof buffer tube 7, and the explosion-proof guide tube is axially and slidably fitted onto the explosion-proof buffer shaft 8. Furthermore, the outer diameter of the explosion-proof guide tube is not greater than the inner diameter of the explosion-proof buffer tube 7, and the inner diameter of the explosion-proof guide tube is not less than the diameter of the explosion-proof buffer shaft 8. The explosion-proof guide tube cooperates with the explosion-proof slide 9 to provide stable guiding support for the explosion-proof buffer shaft 8 to slide back and forth along the axis within the explosion-proof buffer tube 7. The spring 11 is sleeved on the outside of the explosion-proof buffer shaft 8, with one end of the spring 11 connected to the explosion-proof slide 9 and the other end of the spring 11 connected to the explosion-proof guide tube, to provide cushioning when the explosion-proof buffer shaft 8 slides outward within the explosion-proof buffer tube 7.
[0025] The explosion-proof hinge includes a hinge seat 12, a hinge ball 13, and a hinge cover plate. The hinge seat 12 is disposed on the sealed cabinet door, and the hinge ball 13 is disposed on the explosion-proof buffer component. The hinge ball 13 is hinged to the hinge seat 12 via the hinge cover plate. The bottom end of the hinge seat 12 is fixedly disposed on the sealed cabinet door, and the top end of the hinge seat 12 is provided with a hinge groove. The hinge groove is hemispherical, and the radius of the hinge groove is the same as the radius of the hinge ball 13. The hinge ball 13 is rotatably fitted into the hinge groove. The hinge cover plate is provided with a hinge through hole. One end face of the hinge cover plate is fixedly disposed on the top surface of the hinge seat 12, and the hinge ball 13 protrudes from the hinge through hole and is fixedly connected to the other end of the explosion-proof buffer shaft 8. It should be noted that the diameter of the hinge through hole is larger than the diameter of the explosion-proof buffer shaft 8, so that the hinge seat 12 can swing up and down and left and right on the hinge ball 13.
[0026] The buffer adjustment component includes an adjustment power component and an axial limiting component, both of which are mounted on the explosion-proof transmission support component. The adjustment power component includes a motor 14, an internally threaded tube 15, and a screw 16. The motor 14 is fixedly mounted on one end face of the explosion-proof support 6. The internally threaded tube 15 is fixedly inserted through one end face of the explosion-proof buffer tube 7. One end of the screw 16 rotates horizontally through one end face of the explosion-proof support 6 and is fixedly connected to the rotating shaft of the motor 14. The other end of the screw 16 is fitted into the internally threaded tube 15. When the motor 14 drives the screw 16 to rotate, it will cause the internally threaded tube 15 to slide axially back and forth on the screw 16. The reciprocating sliding of the internally threaded tube 15 will cause the explosion-proof buffer tube 7 to slide axially back and forth within the explosion-proof support 6. The reciprocating sliding of the explosion-proof buffer tube 7, through the explosion-proof guide tube and the spring 11, adjusts the buffering force on the explosion-proof buffer shaft 8 and adjusts the upward opening size of the sealed cabinet door to meet the pressure relief requirements of internal combustion and explosion in the power cabinet 1 under different operating environments. It should be noted that after the combustion and explosion gas inside the power cabinet 1 is timely depressurized upward through the sealed cabinet door, the sealed cabinet door will not detach from the power cabinet and fly out to injure people. Furthermore, the explosive gas inside the power cabinet will not cause harm to surrounding personnel due to the upward spray and pressure relief.
[0027] The axial limiting component includes a limiting support plate 17, a thrust ball bearing 18, and a limiting rotating plate 19. The limiting support plate 17 is annular and is fixedly embedded inside the tube of the explosion-proof support base 6. The inner ring of the limiting support plate 17 is fitted around the screw 16. After the thrust ball bearing 18 is fitted around the screw 16, one end face of the thrust ball bearing 18 is connected to the limiting support plate 17. The limiting rotating plate 19 is annular and its outer diameter is smaller than the inner diameter of the explosion-proof support base 6. The limiting rotating plate 19 is fixedly fitted onto the screw 16 and is connected to the other end face of the thrust ball bearing 18. This improves the axial tensile force that the screw 16 can withstand.
[0028] The first explosion-proof middle support 4 has the same structure as the first explosion-proof upper support. The first explosion-proof middle support 4 is mounted on the side wall of the power cabinet 1 directly below the first explosion-proof upper support and is hinged to the sealed cabinet door. Furthermore, the connection method between the first explosion-proof middle support 4 and the sealed cabinet door is the same as that between the first explosion-proof upper support and the sealed cabinet door. It should be noted that the buffering force of the spring 11 of the first explosion-proof middle support 4 is adjusted by the motor 14 of the first explosion-proof middle support 4, causing the sealed cabinet door to rotate around the first explosion-proof lower support 5 along the vertical plane and open upwards to release pressure.
[0029] The first explosion-proof lower support member 5 has the same structure as the first explosion-proof upper support member. The first explosion-proof lower support member 5 is mounted on the side wall of the power cabinet 1 directly below the first explosion-proof middle support member 4 and is hinged to the sealed cabinet door. Furthermore, the connection method between the first explosion-proof lower support member 5 and the sealed cabinet door is the same as that between the first explosion-proof upper support member and the sealed cabinet door. It should be noted that the buffering force of the spring 11 of the first explosion-proof lower support member 5 is adjusted by the motor 14 of the first explosion-proof lower support member 5, causing the sealed cabinet door to rotate around the first explosion-proof lower support member 5 along the vertical plane and open upwards to release pressure.
[0030] The second explosion-proof support 3 has the same structure as the first explosion-proof support 3. The second explosion-proof support 3 is disposed on the groove wall on the other side of the power cabinet 1, and the second explosion-proof support 3 is symmetrical to the first explosion-proof support 3.
[0031] The sealed cabinet door assembly includes a cabinet door 20 and a cabinet door lock. The cabinet door 20 is mounted on the first explosion-proof support member, and the cabinet door lock is mounted on the cabinet door 20. One side of the cabinet door 20 is fixedly connected to the hinge seats 12 of the first explosion-proof upper support member, the first explosion-proof middle support member 4, and the first explosion-proof lower support member 5, respectively. This allows the cabinet door 20 to be opened or closed via the first explosion-proof upper support member, the first explosion-proof middle support member 4, and the first explosion-proof lower support member 5, thereby sealing and opening the slot of the power cabinet 1. Furthermore, a sealing ring is provided on the inner side of the cabinet door 20. The sealing ring is rectangular in shape, and its size is the same as the size of the cabinet door slot. The sealing ring corresponds to the cabinet door slot on the cabinet door 20 to improve the sealing performance.
[0032] The cabinet door lock includes a bolt 21, a locking seat 22, and a locking opening and closing component. The bolt 21 is mounted on the second explosion-proof support 3, the locking seat 22 is mounted on the cabinet door 20, and the locking opening and closing component is mounted on the locking seat 22.
[0033] The bolt 21 is generally rectangular in shape, with a locking groove on one side wall for locking the second explosion-proof support 3 to the cabinet door 20. Three bolts 21 are provided, each corresponding to one of the three hinge seats 12 on the second explosion-proof support 3. The locking seat 22 is columnar and vertically fixed to the outer side of the other side of the cabinet door 20. A horizontal locking hole is provided on the surface of the locking seat 22 corresponding to the bolt 21, and a blind locking hole is provided within the horizontal locking hole. The horizontal locking hole facilitates the insertion of the bolt brush to lock the door with the locking mechanism.
[0034] The locking mechanism includes a locking spring 23, a latch 24, a magnetic coil, and a permanent magnet. The locking spring 23 is located at the bottom of the locking blind hole, and the latch 24 is slidably fitted into the opening of the locking blind hole. The latch 24, pushed by the locking spring 23, can be inserted into the locking groove, thereby locking the cabinet door 20 onto the slot of the power cabinet 1. The magnetic coil is fixedly located at the bottom of the locking blind hole, and one end of the permanent magnet is fixedly connected to the bottom surface of the latch 24, while the other end of the permanent magnet is inserted into the magnetic coil. When a direct current is applied to the magnetic coil to generate a magnetic field, the permanent magnet pulls the latch 24 downwards, releasing the bolt 21 and opening the cabinet door 20. Furthermore, three sets of the locking mechanism are provided, each corresponding to one of the three bolts 21, to improve the locking stability of the cabinet door 20.
[0035] The ventilation, heat dissipation and dehumidification component includes a cooling fan 25. One end of the cooling fan 25 is connected to the top surface of the power cabinet 1 to exhaust hot air from the bottom surface of the power cabinet 1 through the heat dissipation holes. The exhausted hot air is in the support base 2 and is discharged from the dehumidification holes 26 on the side wall of the support base 2 to dehumidify the bottom of the power cabinet 1 and prevent the bottom of the power cabinet 1 from rusting.
[0036] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.
Claims
1. An explosion-proof intermediate frequency power supply cabinet, characterized in that, include: A power cabinet, comprising a power cabinet body and a support base, wherein the support base provides support on the power cabinet body; An explosion-proof cabinet door component is installed on the power cabinet. The explosion-proof cabinet door component includes an explosion-proof support component and a sealing cabinet door component. The explosion-proof support component is on the power cabinet body and provides explosion-proof buffer support for the connected sealing cabinet door component. The sealing cabinet door component seals and relieves explosion-proof pressure by using the explosion-proof support component to block the slot of the power cabinet body. A ventilation, heat dissipation and dehumidification component is installed on the power cabinet to provide ventilation and heat dissipation for the electrical components inside the power cabinet. The explosion-proof support includes a first explosion-proof support and a second explosion-proof support, both of which are mounted on the power cabinet. The first explosion-proof support includes a first explosion-proof upper support, a first explosion-proof middle support, and a first explosion-proof lower support, all of which are mounted on a groove wall on one side of the power cabinet. The first explosion-proof upper support includes an explosion-proof transmission support, an explosion-proof buffer, an explosion-proof hinge, and a buffer adjustment component. The explosion-proof transmission support is mounted on the power cabinet, the explosion-proof buffer and the buffer adjustment component are mounted on the explosion-proof transmission support, and the explosion-proof hinge is mounted on the explosion-proof buffer. The explosion-proof transmission support includes explosion-proof... The explosion-proof support is located on the upper part of the groove wall on one side of the power cabinet and is used to provide support for the explosion-proof buffer component and the buffer adjustment component. The explosion-proof buffer component includes an explosion-proof buffer tube, an explosion-proof buffer shaft, an explosion-proof slide, an explosion-proof guide tube, and a spring. The explosion-proof buffer tube is axially and slidably embedded in the other end tube of the explosion-proof support. One end of the explosion-proof buffer shaft is inserted into the other end tube of the explosion-proof buffer tube. The explosion-proof slide is axially and slidably embedded in the explosion-proof buffer tube, and one end of the explosion-proof slide is connected to one end of the explosion-proof buffer shaft. The explosion-proof guide tube is fixedly embedded in the other end tube of the explosion-proof buffer tube and is axially and slidably fitted on the explosion-proof buffer shaft. The spring is sleeved on the outside of the explosion-proof buffer shaft between the explosion-proof slide and the explosion-proof guide tube.
2. The explosion-proof intermediate frequency power supply cabinet according to claim 1, characterized in that, The explosion-proof hinge includes a hinge seat, a hinge ball, and a hinge cover plate. The hinge seat is disposed on the sealed cabinet door component. The hinge ball is hinged to the hinge seat through the hinge cover plate, and the hinge ball is fixedly connected to the other end of the explosion-proof buffer shaft.
3. The explosion-proof intermediate frequency power supply cabinet according to claim 2, characterized in that, The buffer adjustment component includes an adjustment power component and an axial limiting component, both of which are mounted on the explosion-proof transmission support component. The adjustment power component includes a motor, an internally threaded tube, and a screw. The motor is mounted on one end face of the explosion-proof support base, the internally threaded tube is fixedly inserted through one end face of the explosion-proof buffer tube, one end of the screw rotates through one end face of the explosion-proof support base and is connected to the rotating shaft of the motor, and the other end of the screw is fitted into the internally threaded tube.
4. The explosion-proof intermediate frequency power supply cabinet according to claim 3, characterized in that, The first explosion-proof middle support member has the same structure as the first explosion-proof upper support member. The first explosion-proof middle support member is located on a groove wall on one side of the power cabinet directly below the first explosion-proof upper support member and is connected to the sealed cabinet door. Furthermore, the connection method between the first explosion-proof middle support member and the sealed cabinet door is the same as that between the first explosion-proof upper support member and the sealed cabinet door. The first explosion-proof lower support member has the same structure as the first explosion-proof upper support member. The first explosion-proof lower support member is located on a groove wall on one side of the power cabinet directly below the first explosion-proof middle support member and is connected to the sealed cabinet door. Furthermore, the connection method between the first explosion-proof lower support member and the sealed cabinet door is the same as that between the first explosion-proof upper support member and the sealed cabinet door. The second explosion-proof support member has the same structure as the first explosion-proof support member. The second explosion-proof support member is located on another groove wall of the power cabinet and is symmetrical to the first explosion-proof support member.
5. The explosion-proof intermediate frequency power supply cabinet according to claim 4, characterized in that, The sealed cabinet door includes a cabinet door and a cabinet door lock. The cabinet door is mounted on the first explosion-proof support, and the cabinet door lock is mounted on the cabinet door. One side of the cabinet door is connected to the hinge seats of the first explosion-proof upper support, the first explosion-proof middle support, and the first explosion-proof lower support, respectively. The cabinet door lock includes a bolt, a locking seat, and a locking opening and closing component. The bolt is mounted on the hinge seat of the second explosion-proof support, the locking seat is mounted on the cabinet door, and the locking opening and closing component can lock with the bolt on the locking seat.