An inflatable cabinet with buffer function

Abstract

The present invention discloses an inflatable cabinet with a buffering function, which belongs to the technical field of inflatable cabinets and includes a cabinet body, an inflatable chamber is provided in the cabinet body, an insulating mounting frame is fixedly provided on the inner wall of the inflatable chamber, a power shaft is rotatably provided on the insulating mounting frame, a conductive rotating rod is fixed on the power shaft through an insulating sleeve, the lower end of the conductive rotating rod is electrically connected to the lower conductive end head, the upper end of the conductive rotating rod cooperates with the upper conductive end head, the upper conductive end head and the lower conductive end head are both fixedly provided on the insulating mounting frame, a conductive buffer assembly is fixedly provided on the upper conductive end head, and an insulating buffer assembly is fixedly provided on the insulating mounting frame. When the switch is closed, the conductive buffer assembly buffers the conductive rotating rod, and when the switch is opened, the insulating buffer assembly buffers the conductive rotating rod. The buffering prevents the conductive rotating rod from being deformed and damaged, and reduces the impact of the conductive rotating rod on other mechanical structures in the inflatable chamber, thereby improving the reliability of the inflatable cabinet operation and effectively reducing the occurrence of safety accidents.

Description

Technical Field

[0001] The present invention relates to the field of gas filling cabinet equipment, in particular to a gas filling cabinet with a buffering function. Background Art

[0002] In the inflatable cabinet in the prior art, an arc extinguishing switch and an isolating switch are provided in the inflatable chamber of the inflatable cabinet. The conductive rotating rod in the isolating switch needs to be rotated during the process of opening and closing the switch. The conductive rotating rod is exerted with force during the rotation process. Therefore, a collision will occur when the conductive rotating rod stops during the opening and closing process. Too many collisions can easily cause the conductive rotating rod to be deformed and damaged, and can also cause some mechanical structures inside the inflatable chamber to become loose, deformed or damaged due to collisions. Damage to the mechanical structure inside the inflatable chamber can easily lead to leakage, which ultimately causes a safety accident. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide an inflatable cabinet with a buffering function.

[0004] The object of the present invention is achieved through the following technical solutions:

[0005] An inflatable cabinet with a buffering function comprises a cabinet body, a power shaft, a conductive rotating rod, a lower conductive end, an upper conductive end, an insulating mounting frame, an insulating buffer assembly and a conductive buffer assembly. An inflatable chamber is provided in the cabinet body, the insulating mounting frame is fixedly provided on the inner wall of the inflatable chamber, the power shaft is rotatably provided on the insulating mounting frame, the conductive rotating rod is fixed on the power shaft through an insulating sleeve, the lower end of the conductive rotating rod is electrically connected to the lower conductive end, the upper end of the conductive rotating rod cooperates with the upper conductive end, the upper conductive end and the lower conductive end are both fixedly provided on the insulating mounting frame, the conductive buffer assembly cooperating with the conductive rotating rod is fixedly provided on the upper conductive end, and the insulating buffer assembly cooperating with the conductive rotating rod is fixedly provided on the insulating mounting frame.

[0006] Furthermore, the insulating buffer assembly includes a connecting seat, an ejection spring, a retraction spring, a bearing block and an extrusion block, the connecting seat is fixedly arranged on the insulating mounting frame, the connecting seat is provided with a buffer groove that cooperates with the conductive rotating rod, a first buffer cavity is provided on both sides of the buffer groove, a first limit plate is sealed and fixedly provided on the opening of the first buffer cavity, a first limit step hole is provided on the first limit plate, the extrusion block is slidably arranged in the first limit step hole, a first force-bearing plate that seals and cooperates with the first limit step hole is fixedly provided on the end of the extrusion block, and the retraction spring is provided. It is arranged between the first limiting stepped hole and the first force-bearing plate, a limiting ejector rod is fixedly arranged between the first force-bearing plate and the first buffer cavity, a second buffer cavity connected with the first buffer cavity is arranged on the bottom of the buffer groove, a second limiting plate is sealed and fixed on the opening of the second buffer cavity, a second limiting stepped hole is provided on the second limiting plate, the bearing block is slidably arranged in the second limiting stepped hole, and a second force-bearing plate fixedly connected to the bearing block is sealed in the second limiting stepped hole, and the ejection spring is arranged between the second force-bearing plate and the bottom of the second buffer cavity.

[0007] Furthermore, the conductive buffer assembly includes a conductive buffer seat, a conductive telescopic sleeve, a conductive limit block, a conductive spring and a conductive ball. The conductive buffer seat is fixedly arranged on the upper conductive end head, and the conductive buffer seat is provided with a conductive contact groove that cooperates with the conductive rotating rod. Buffer step holes are provided on both sides of the conductive contact groove. The conductive telescopic sleeve is slidably arranged in the buffer step hole, and the conductive limit block is fixedly arranged on one end of the buffer step hole. The conductive limit block is slidably arranged in the buffer step hole and cooperates with the buffer step hole. The conductive spring is arranged in the buffer step hole and is pressed between the bottom of the buffer step hole and the conductive limit block. The conductive ball is rotatably arranged on the end of the conductive telescopic sleeve, and the small hemispherical surface of the conductive ball is arranged on the outside of the end of the conductive telescopic sleeve.

[0008] Furthermore, the conductive buffer assembly also includes a buffer bar, a guide rod, a buffer spring and a supporting spring. A conductive limit groove is provided on the bottom of the conductive contact groove. The buffer bar is slidably arranged in the conductive limit groove and cooperates with the conductive rotating rod. One end of the guide rod is fixedly connected to the buffer bar. A guide hole cooperating with the guide rod is provided on the bottom of the conductive limit groove. A spring cavity is provided on the bottom of the guide hole. The supporting spring is provided in the spring cavity and cooperates with the end of the guide rod. A blind hole cooperating with the buffer spring is provided on the bottom of the conductive limit groove. The buffer spring is provided in the blind hole and its end is pressed against the buffer bar.

[0009] Furthermore, a spherical groove is provided on the middle portion of the supporting elastic piece, and a spherical end head that cooperates with the spherical groove is provided on the end portion of the guide rod.

[0010] Furthermore, an upper busbar terminal is sealed on the top of the inflation chamber and electrically connected to the upper conductive end; a lower busbar terminal is sealed on the bottom of the inflation chamber and electrically connected to the lower conductive end.

[0011] Furthermore, the upper busbar terminal is electrically connected to the moving contact of the vacuum interrupter, the static contact of the vacuum interrupter is electrically connected to the upper conductive end, and the vacuum interrupter is fixedly arranged on the inner wall of the inflatable chamber through the interrupter insulation frame.

[0012] Furthermore, the moving contact of the vacuum interrupter is connected to the output of the transmission assembly, the input end of the transmission assembly is connected to the first power assembly, the input end of the power shaft is connected to the second power assembly, the first power assembly and the second power assembly are both arranged in the cabinet, and the transmission assembly and the power shaft are both sealed with the side wall of the inflation chamber.

[0013] Furthermore, the lower conductive end is provided with a penetrating adjustment hole, an adjustment rod is slidably provided in the adjustment hole, an adjustment block is fixedly provided on the end of the adjustment rod, an anti-slip groove is provided on the adjustment block, and a conductive arc plate cooperating with the anti-slip groove is fixedly provided on the end of the conductive rotating rod.

[0014] Furthermore, arc-shaped corrugated surfaces are provided on both sides of the conductive arc plate, the axis of the arc-shaped corrugated surface is coaxially arranged with the power shaft, and arc-shaped corrugated grooves matching the arc-shaped corrugated surface are provided on both sides of the anti-slip groove.

[0015] The beneficial effects of the present invention are:

[0016] 1) In this technology, an insulating buffer assembly and a conductive buffer assembly are arranged in the inflation chamber. The conductive buffer assembly buffers the conductive rotating rod when the switch is closed, and buffers the conductive rotating rod when the switch is opened. The buffering prevents the conductive rotating rod from being deformed or damaged, and reduces the impact of the conductive rotating rod on the insulating buffer assembly and the conductive buffer assembly in the inflation chamber, preventing the insulating buffer assembly and the conductive buffer group from loosening and being damaged, thereby improving the reliability of the inflation cabinet operation and effectively reducing the occurrence of safety accidents.

[0017] 2) In this technology, arc-shaped corrugated surfaces are provided on both sides of the conductive arc plate to increase the contact area between the conductive arc plate and the adjustment block, so that the conductive arc plate and the adjustment block are fully conductive to each other and the heat generation is reduced, thereby preventing the inflation chamber from expanding and leaking due to excessive heat, thereby avoiding the occurrence of safety accidents caused by leakage in the inflation cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the main view connection structure diagram of the inflatable cabinet;

[0019] Figure 2 This is the side view of the connection structure of the inflatable cabinet;

[0020] Figure 3 Schematic diagram of the cross-sectional structure of the insulating buffer component;

[0021] Figure 4 Schematic diagram of the cross-sectional structure of the conductive buffer component Figure 1 ;

[0022] Figure 5 Schematic diagram of the cross-sectional structure of the conductive buffer component Figure 2 ;

[0023] Figure 6 It is a schematic diagram of the cross-sectional structure between the regulating block and the conductive arc plate;

[0024] In the figure, 1-cabinet, 2-power shaft, 3-conductive rotating rod, 4-lower conductive end, 5-upper conductive end, 6-insulating mounting bracket, 7-inflatable chamber, 8-connecting seat, 9-ejection spring, 10-retraction spring, 11-bearing block, 12-extrusion block, 13-buffer groove, 14-first buffer cavity, 15-first limiting plate, 16-first limiting stepped hole, 17-first force plate, 18-second buffer cavity, 19-second limiting plate, 20-second limiting stepped hole, 21-second force plate, 22-conductive buffer seat, 23-conductive telescopic sleeve, 24-conductive limiting block, 25-conductive spring, 26-conductive ball, 27 -conductive contact groove, 28-buffer stepped hole, 29-buffer strip, 30-guide rod, 31-buffer spring, 32-support spring, 33-conductive limit groove, 34-guide hole, 35-spring cavity, 36-spherical groove, 37-spherical end, 38-upper busbar terminal, 39-lower busbar terminal, 40-vacuum interrupter, 41-transmission assembly, 42-first power assembly, 43-second power assembly, 44-adjustment hole, 45-adjustment rod, 46-adjustment block, 47-anti-slip groove, 48-conductive arc plate, 49-arc corrugated surface, 50-arc corrugated groove, 51-limiting top rod, 52-arc interrupter insulation frame. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0026] See Figures 1-6 , the present invention provides a technical solution:

[0027] An inflatable cabinet with a buffering function includes a cabinet body 1, a power shaft 2, a conductive rotating rod 3, a lower conductive end 4, an upper conductive end 5, an insulating mounting frame 6, an insulating buffer assembly and a conductive buffer assembly. An inflatable chamber 7 is provided in the cabinet body 1, and an insulating mounting frame 6 is fixedly provided on the inner wall of the inflatable chamber 7. The power shaft 2 is rotatably set on the insulating mounting frame 6. The conductive rotating rod 3 is fixed on the power shaft 2 through an insulating sleeve. The lower end of the conductive rotating rod 3 is electrically connected to the lower conductive end 4, and the upper end of the conductive rotating rod 3 cooperates with the upper conductive end 5. The upper conductive end 5 and the lower conductive end 4 are both fixedly provided on the insulating mounting frame 6. A conductive buffer assembly cooperating with the conductive rotating rod 3 is fixedly provided on the upper conductive end 5, and an insulating buffer assembly cooperating with the conductive rotating rod 3 is fixedly provided on the insulating mounting frame 6. The cabinet 1 is used to mount the power shaft 2 and the insulating mounting bracket 6. The insulating mounting bracket 6 mounts the power shaft 2, the lower conductive terminal 4, the upper conductive terminal 5, the insulating mounting bracket 6, the insulating buffer assembly, and the conductive buffer assembly. The plenum chamber 7 within the cabinet 1 is filled with nitrogen. The power shaft 2 transmits power to the conductive rotating rod 3, which rotates around the power shaft 2. The cabinet 1 switches three-phase voltage, so three sets of conductive rotating rods 3 are connected to the power shaft 2. To prevent the power shaft 2 from conducting electricity, the conductive rotating rods 3 are fixed to the power shaft 2 via insulating sleeves. The lower ends of the conductive rotating rods 3 always contact the lower conductive terminal 4. When the upper ends of the conductive rotating rods 3 contact the conductive buffer assembly, power is applied; when the upper ends of the conductive rotating rods 3 contact the insulating buffer assembly, power is removed. When the conductive rotating rods 3 are in a vertical position, their upper ends are located within the conductive buffer assembly; when the conductive rotating rods 3 are in a horizontal position, their upper ends are located within the insulating buffer assembly. The end of the conductive rotating rod 3 is plate-shaped and cooperates with the insulating buffer component and the conductive buffer component. The conductive rotating rod 3, the lower conductive end 4, the upper conductive end 5 and the conductive buffer component are all made of conductive materials and can transmit electrical energy when working.

[0028] In some embodiments, the insulating buffer assembly includes a connecting seat 8, an ejection spring 9, a retraction spring 10, a bearing block 11 and an extrusion block 12. The connecting seat 8 is fixedly arranged on the insulating mounting frame 6. The connecting seat 8 is provided with a buffer groove 13 that cooperates with the conductive rotating rod 3. A first buffer cavity 14 is provided on both sides of the buffer groove 13. A first limiting plate 15 is sealed and fixedly provided on the opening of the first buffer cavity 14. A first limiting stepped hole 16 is penetrated by the first limiting plate 15. The extrusion block 12 is slidably arranged in the first limiting stepped hole 16. A first force plate 17 that seals and cooperates with the first limiting stepped hole 16 is fixedly provided on the end of the extrusion block 12. The retraction spring 10 is arranged between the first limiting stepped hole 16 and the first force-bearing plate 17, a limiting push rod 51 is fixedly arranged between the first force-bearing plate 17 and the first buffer chamber 14, a second buffer chamber 18 connected to the first buffer chamber 14 is arranged on the bottom of the buffer groove 13, a second limiting plate 19 is sealed and fixedly arranged on the opening of the second buffer chamber 18, a second limiting stepped hole 20 is penetrated by the second limiting plate 19, the bearing block 11 is slidably arranged in the second limiting stepped hole 20, and a second force-bearing plate 21 fixedly connected to the bearing block 11 is sealed in the second limiting stepped hole 20, and the ejection spring 9 is arranged between the second force-bearing plate 21 and the bottom of the second buffer chamber 18. Among them, the connecting seat 8 is fixed on the insulating mounting frame 6 for installing the ejection spring 9, the retraction spring 10, the bearing block 11 and the extrusion block 12. The cross-sections of the extrusion block 12 and the first force-bearing plate 17 are circular and coaxially arranged. The diameter of the first force-bearing plate 17 is larger than the diameter of the extrusion block 12. A sealing ring is provided between the outer wall of the first force-bearing plate 17 and the inner wall of the first limiting stepped hole 16. The retraction spring 10 is sleeved on the extrusion block 12, and one end of the retraction spring 10 is pressed against the first force-bearing plate 17, and the other end of the retraction spring 10 is pressed against the step of the first limiting stepped hole 16. Under the action of the retraction spring 10, the first force-bearing plate 17 moves toward the inner side of the first buffer cavity 14. In order to prevent the first force-bearing plate 17 from entering the first buffer cavity 14, a limiting push rod 51 is fixed in the first buffer cavity 14. The end of the limiting push rod 51 cooperates with the first force-bearing plate 17, and the diameter of the limiting push rod 51 is smaller than the diameter of the first force-bearing plate 17. The cross-sections of the second force-bearing plate 21 and the bearing block 11 are both circular and coaxially arranged. The diameter of the second force-bearing plate 21 is larger than that of the bearing block 11. The function of the second force-bearing plate 21 is to prevent the bearing block 11 from escaping from the second limit stepped hole 20. A sealing ring is provided between the outer wall of the second force-bearing plate 21 and the inner wall of the second limit stepped hole 20. The total length of the second force-bearing plate 21 plus the bearing block 11 is less than the total length of the second limit stepped hole 20. The ejection spring 9 is fixed in the second buffer cavity 18 and its end acts on the second force-bearing plate 21. The first buffer cavity 14 and the second buffer cavity 18 are both filled with a buffer liquid, which can be water or hydraulic oil.During operation, the conductive rotating rod 3 acts on the end of the supporting block 11, and the supporting block 11 compresses the buffer liquid in the second buffer cavity 18 through the second force-bearing plate 21. The buffer liquid in the second buffer cavity 18 enters the first buffer cavity 14. The first buffer cavity 14 applies force on both sides of the conductive rotating rod 3 through the ejection spring 9 and the extrusion block 12, which can effectively buffer the stop of the conductive rotating rod 3. After the buffering is completed, with the cooperation of the ejection spring 9 and the retraction spring 10, the supporting block 11 and the extrusion block 12 return to their initial positions, and part of the buffer liquid in the first buffer cavity 14 returns to the second buffer cavity 18. In order to facilitate the installation of the first force-bearing plate 17 and the second force-bearing plate 21, mounting holes are provided on the bottom of the first buffer cavity 14 and the second buffer cavity 18, and mounting hole covers are sealed on the mounting holes.

[0029] In some embodiments, the conductive buffer assembly includes a conductive buffer seat 22, a conductive telescopic sleeve 23, a conductive limit block 24, a conductive spring 25 and a conductive ball 26. The conductive buffer seat 22 is fixedly set on the upper conductive end 5, and the conductive buffer seat 22 is provided with a conductive contact groove 27 that cooperates with the conductive rotating rod 3. Buffer step holes 28 are provided on both sides of the conductive contact groove 27. The conductive telescopic sleeve 23 is slidably set in the buffer step hole 28, and a conductive limit block 24 is fixedly set on one end of the buffer step hole 28. The conductive limit block 24 is slidably set in the buffer step hole 28 and cooperates with the buffer step hole 28. The conductive spring 25 is set in the buffer step hole 28 and is pressed between the bottom of the buffer step hole 28 and the conductive limit block 24. A conductive ball 26 is rotatably set on the end of the conductive telescopic sleeve 23, and the small hemispherical surface of the conductive ball 26 is set on the outside of the end of the conductive telescopic sleeve 23. The conductive buffer seat 22 is fixed to the upper conductive end 5 and is used to mount the conductive telescopic sleeve 23, the conductive stopper 24, the conductive spring 25, and the conductive ball 26. The conductive telescopic sleeve 23 and the conductive stopper 24 are both circular in cross-section and coaxially arranged. The diameter of the conductive stopper 24 is larger than that of the conductive telescopic sleeve 23. Under the action of the conductive spring 25, the conductive telescopic sleeve 23 moves toward the conductive contact groove 27. The bottom of the buffer stepped hole 28 is provided with a mounting hole for mounting the conductive stopper 24 and the conductive spring 25, and a mounting hole plate is fixedly mounted on the mounting hole. A spherical groove is provided at the end of the conductive telescopic sleeve 23, and the conductive ball 26 is rotatably mounted in the spherical groove. The top of the conductive ball 26 extends to the outside of the end of the conductive telescopic sleeve 23. When the conductive rotating rod 3 is in operation, it only contacts the conductive ball 26 and does not contact the conductive telescopic sleeve 23. Under the action of the conductive springs 25 on both sides, the conductive balls 26 on both sides squeeze the conductive rotating rod 3, reducing the speed of the conductive rotating rod 3.

[0030] In some embodiments, the conductive buffer assembly also includes a buffer bar 29, a guide rod 30, a buffer spring 31 and a support spring 32. A conductive limit groove 33 is provided on the bottom of the conductive contact groove 27. The buffer bar 29 is slidably set in the conductive limit groove 33 and cooperates with the conductive rotating rod 3. One end of the guide rod 30 is fixedly connected to the buffer bar 29. A guide hole 34 cooperating with the guide rod 30 is provided on the bottom of the conductive limit groove 33. A spring cavity 35 is provided on the bottom of the guide hole 34. The support spring 32 is provided in the spring cavity 35 and cooperates with the end of the guide rod 30. A blind hole cooperating with the buffer spring 31 is provided on the bottom of the conductive limit groove 33. The buffer spring 31 is provided in the blind hole and its end is pressed against the buffer bar 29. The conductive limit slot 33 restricts the movement of the buffer bar 29. Under the action of the support spring 32, the buffer bar 29 pushes the conductive rotating rod 3 outward. The guide rod 30 cooperates with the guide hole 34 to guide the movement of the buffer bar 29. The end of the guide rod 30 is fixedly connected to the buffer bar 29. During the closing process, the conductive rotating rod 3 ultimately presses against the buffer bar 29. The buffer spring 31 in contact with the buffer bar 29 first provides buffering, with some force acting on the guide rod 30. The guide rod 30 then provides buffering via the support spring 32. The support spring 32 is arched within the spring cavity 35, with its center protruding toward the guide rod 30. The combined action of the buffer spring 31 and the support spring 32 fully stops the movement of the conductive rotating rod 3. The buffer bar 29 then returns to its initial position under the action of the buffer spring 31 and the support spring 32. A mounting hole for mounting the supporting elastic piece 32 is provided on the bottom of the elastic piece cavity 35 , and a mounting hole cover is fixedly provided on the mounting hole.

[0031] In some embodiments, a spherical groove 36 is provided in the middle of the support spring 32, and a spherical end 37 is provided at the end of the guide rod 30 to cooperate with the spherical groove 36. The provision of the spherical groove 36 and the spherical end 37 can effectively prevent the support spring 32 from moving in the spring cavity 35, thereby preventing the support spring 32 from failing to perform its buffering function.

[0032] In some embodiments, an upper busbar terminal 38 is sealed on the top of the plenum chamber 7 and electrically connected to the upper conductive terminal 5. A lower busbar terminal 39 is sealed on the bottom of the plenum chamber 7 and electrically connected to the lower conductive terminal 4. Both the upper busbar terminal 38 and the lower busbar terminal 39 are busbar terminals in the prior art. During power-on, current can be input from the upper busbar terminal 38 and output from the lower busbar terminal 39, or current can be input from the lower busbar terminal 39 and output from the upper busbar terminal 38.

[0033] In some embodiments, the upper busbar terminal 38 is electrically connected to the moving contact of the vacuum interrupter 40, the static contact of the vacuum interrupter 40 is electrically connected to the upper conductive terminal 5, and the vacuum interrupter 40 is fixed to the inner wall of the gas chamber 7 via the interrupter insulating frame 52. The vacuum interrupter 40 is a prior art device, and the function of the interrupter insulating frame 52 is to fix the vacuum interrupter 40 in the gas chamber 7. The moving contact of the vacuum interrupter 40 is connected to the upper busbar terminal 38 via a copper busbar, and the static contact of the vacuum interrupter 40 is connected to the upper conductive terminal 5 via a copper busbar. When the circuit needs to be disconnected, the vacuum interrupter 40 is first disconnected, and then the conductive rotating rod 3 and the conductive buffer assembly are controlled to separate; when power needs to be applied, the conductive rotating rod 3 and the conductive buffer assembly are first controlled to close, and then the vacuum interrupter 40 is controlled to close.

[0034] In some embodiments, the moving contact of the vacuum interrupter 40 is connected to the output of the transmission assembly 41, the input end of the transmission assembly 41 is connected to the first power assembly 42, and the input end of the power shaft 2 is connected to the second power assembly 43. The first power assembly 42 and the second power assembly 43 are both disposed within the cabinet 1, and the transmission assembly 41 and the power shaft 2 are both sealed against the sidewalls of the plenum chamber 7. The transmission assembly 41, the first power assembly 42, and the second power assembly 43 are all prior art equipment. The first power assembly 42 provides power and enables the vacuum interrupter 40 to be opened and closed through the transmission assembly 41. The second power assembly 43 controls the rotation of the power shaft 2, which drives the conductive rotating rod 3 to rotate. Closing is achieved when the conductive rotating rod 3 contacts the conductive buffer assembly, and opening is achieved when the conductive rotating rod 3 separates from the conductive buffer assembly.

[0035] In some embodiments, the lower conductive end 4 is provided with an adjustment hole 44 extending therethrough, an adjustment rod 45 is slidably disposed in the adjustment hole 44, an adjustment block 46 is fixedly disposed on the end of the adjustment rod 45, an anti-slip groove 47 is disposed on the adjustment block 46, and a conductive circular arc plate 48 is fixedly disposed on the end of the conductive rotating rod 3 to cooperate with the anti-slip groove 47. The adjustment rod 45, the adjustment block 46, and the conductive circular arc plate 48 are all conductors. The adjustment rod 45 slides up and down in the adjustment hole 44, and the adjustment rod 45 slides up and down with the adjustment block 46. As the conductive circular arc plate 48 rotates with the conductive rotating rod 3, the conductive circular arc plate 48 and the adjustment block 46 are in full contact to conduct electricity, thereby being unaffected by installation errors and manufacturing errors.

[0036] In some embodiments, both sides of the conductive arc plate 48 are provided with arc-shaped corrugated surfaces 49, the axis of which is coaxial with the power shaft 2, and both sides of the anti-slip groove 47 are provided with arc-shaped corrugated grooves 50 that cooperate with the arc-shaped corrugated surfaces 49. The rounded corners on the edges of the conductive arc plate 48 and the provision of the arc-shaped corrugated surfaces 49 on both sides of the conductive arc plate 48 can increase the contact area between the conductive arc plate 48 and the adjustment block 46, thereby reducing heat generation during power-on.

[0037] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "one end", "top", "middle", "the other end", "coaxial", "one side", "inside", "front", "center", "both ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0038] In the present invention, unless otherwise clearly stipulated and limited, the terms "setting", "installation", "connection", "fixation", "hinge" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0039] The foregoing description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Rather, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the concept described herein through the above teachings or techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the appended claims.

Claims

1. An inflatable cabinet with a buffering function, characterized in that: The invention comprises a cabinet (1), a power shaft (2), a conductive rotating rod (3), a lower conductive end (4), an upper conductive end (5), an insulating mounting frame (6), an insulating buffer assembly and a conductive buffer assembly, wherein an air-filled chamber (7) is provided in the cabinet (1), the insulating mounting frame (6) is fixedly provided on the inner wall of the air-filled chamber (7), the power shaft (2) is rotatably provided on the insulating mounting frame (6), the conductive rotating rod (3) is fixed on the power shaft (2) through an insulating sleeve, the lower end of the conductive rotating rod (3) is electrically connected to the lower conductive end (4), the upper end of the conductive rotating rod (3) is matched with the upper conductive end (5), the upper conductive end (5) and the lower conductive end (4) are both fixedly provided on the insulating mounting frame (6), the conductive buffer assembly matched with the conductive rotating rod (3) is fixedly provided on the upper conductive end (5), and the insulating buffer assembly matched with the conductive rotating rod (3) is fixedly provided on the insulating mounting frame (6).

2. The inflatable cabinet with a buffering function according to claim 1, characterized in that: The insulating buffer assembly includes a connecting seat (8), an ejection spring (9), a retraction spring (10), a bearing block (11) and an extrusion block (12), wherein the connecting seat (8) is fixedly arranged on the insulating mounting frame (6), and a buffer groove (13) cooperating with the conductive rotating rod (3) is provided on the connecting seat (8), and a first buffer cavity (14) is provided on both sides of the buffer groove (13), and a first limiting plate (15) is sealed and fixedly provided on the opening of the first buffer cavity (14), and a first limiting stepped hole (16) is provided through the first limiting plate (15), and the extrusion block (12) is slidably arranged in the first limiting stepped hole (16), and a first force-bearing plate (17) is fixedly provided on the end of the extrusion block (12) and is sealed and matched with the first limiting stepped hole (16), and the retraction spring (10) is provided. A limiting ejector rod (51) is fixedly arranged between the first limiting stepped hole (16) and the first force-bearing plate (17), and between the first force-bearing plate (17) and the first buffer cavity (14). A second buffer cavity (18) communicating with the first buffer cavity (14) is arranged on the bottom of the buffer groove (13). A second limiting plate (19) is sealed and fixedly arranged on the opening of the second buffer cavity (18). A second limiting stepped hole (20) is provided through the second limiting plate (19). The bearing block (11) is slidably arranged in the second limiting stepped hole (20). A second force-bearing plate (21) fixedly connected to the bearing block (11) is sealed in the second limiting stepped hole (20). The ejection spring (9) is arranged between the second force-bearing plate (21) and the bottom of the second buffer cavity (18).

3. The inflatable cabinet with a buffering function according to claim 1 or 2, characterized in that: The conductive buffer assembly comprises a conductive buffer seat (22), a conductive telescopic sleeve (23), a conductive limit block (24), a conductive spring (25) and a conductive ball (26), wherein the conductive buffer seat (22) is fixedly arranged on the upper conductive end (5), and the conductive buffer seat (22) is provided with a conductive contact groove (27) that cooperates with the conductive rotating rod (3), and buffer step holes (28) are provided on both sides of the conductive contact groove (27), and the conductive telescopic sleeve (23) is slidably arranged in the buffer step hole (28), and the buffer step hole (28) is provided on the conductive contact groove (27). The conductive limit block (24) is fixedly provided on one end of the hole (28), the conductive limit block (24) is slidably provided in the buffer step hole (28) and cooperates with the buffer step hole (28), the conductive spring (25) is provided in the buffer step hole (28) and is pressed between the bottom of the buffer step hole (28) and the conductive limit block (24), the conductive ball (26) is rotatably provided on the end of the conductive telescopic sleeve (23), and the small hemispherical surface of the conductive ball (26) is provided on the outside of the end of the conductive telescopic sleeve (23).

4. The inflatable cabinet with a buffering function according to claim 3, characterized in that: The conductive buffer assembly further comprises a buffer bar (29), a guide rod (30), a buffer spring (31) and a supporting spring (32); a conductive limiting groove (33) is provided on the bottom of the conductive contact groove (27); the buffer bar (29) is slidably arranged in the conductive limiting groove (33) and cooperates with the conductive rotating rod (3); one end of the guide rod (30) is fixedly connected to the buffer bar (29); a guide hole (34) cooperating with the guide rod (30) is provided on the bottom of the conductive limiting groove (33); a spring cavity (35) is provided on the bottom of the guide hole (34); the supporting spring (32) is arranged in the spring cavity (35) and cooperates with the end of the guide rod (30); a blind hole cooperating with the buffer spring (31) is provided on the bottom of the conductive limiting groove (33); the buffer spring (31) is arranged in the blind hole and its end is pressed against the buffer bar (29).

5. The inflatable cabinet with a buffering function according to claim 4, characterized in that: A spherical groove (36) is provided on the middle portion of the supporting spring piece (32), and a spherical end (37) that cooperates with the spherical groove (36) is provided on the end portion of the guide rod (30).

6. The inflatable cabinet with a buffering function according to claim 1 or 2, characterized in that: An upper busbar terminal (38) is sealed on the top of the inflation chamber (7), and the upper busbar terminal (38) is electrically connected to the upper conductive terminal (5). A lower busbar terminal (39) is sealed on the bottom of the inflation chamber (7), and the lower busbar terminal (39) is electrically connected to the lower conductive terminal (4).

7. The inflatable cabinet with a buffering function according to claim 6, characterized in that: The upper busbar terminal (38) is electrically connected to the moving contact of the vacuum interrupter (40), the static contact of the vacuum interrupter (40) is electrically connected to the upper conductive terminal (5), and the vacuum interrupter (40) is fixedly arranged on the inner wall of the gas-filled chamber (7) via an interrupter insulating frame (52).

8. The inflatable cabinet with a buffering function according to claim 7, characterized in that: The moving contact of the vacuum interrupter (40) is connected to the output portion of the transmission assembly (41), the input end of the transmission assembly (41) is connected to the first power assembly (42), the input end of the power shaft (2) is connected to the second power assembly (43), the first power assembly (42) and the second power assembly (43) are both arranged in the cabinet (1), and the transmission assembly (41) and the power shaft (2) are both sealed with the side wall of the inflation chamber (7).

9. The inflatable cabinet with a buffering function according to claim 1 or 2, characterized in that: The lower conductive end (4) is provided with a penetrating adjustment hole (44), an adjustment rod (45) is slidably provided in the adjustment hole (44), an adjustment block (46) is fixedly provided on the end of the adjustment rod (45), an anti-slip groove (47) is provided on the adjustment block (46), and a conductive arc plate (48) that cooperates with the anti-slip groove (47) is fixedly provided on the end of the conductive rotating rod (3).

10. The inflatable cabinet with a buffering function according to claim 9, characterized in that: Arc-shaped corrugated surfaces (49) are provided on both sides of the conductive circular arc plate (48), and the axis of the arc-shaped corrugated surface (49) is coaxially arranged with the power shaft (2). Arc-shaped corrugated grooves (50) that cooperate with the arc-shaped corrugated surface (49) are provided on both sides of the anti-slip sliding groove (47).

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