A draw-out type high and low voltage switchgear

Abstract

The present invention discloses a withdrawable high and low voltage switch cabinet, which relates to the technical field of electrical equipment, including a cabinet body, an inner wall of the cabinet body is provided with a slide groove, a front side of the cabinet body is provided with a movable door, a bottom of the cabinet body is provided with a universal wheel, and the interior of the cabinet body is provided with a pulling device, a supporting device and a limiting device; wherein, a round rod is matched with a No. 1 spring, a piston block, a fixing cylinder and hydraulic oil to effectively reduce collision, prevent the receiving plate from causing damage to the cabinet body, and also reduce noise, improve the use experience, thereby extending the service life; the trigger block is moved to match the pressure rod, the slider, the slide groove block, the No. 2 spring, the heart-shaped groove, the connecting rod, the buckle block and the trigger block to prevent the receiving plate from accidentally falling off completely, thereby ensuring safe use; the pressure rod, the No. 2 spring, the slide groove block, the connecting rod, the buckle block, the trigger block and the pressure rod replace the previous push-pull type extraction method, thereby improving the use speed of the opponent car circuit breaker.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and particularly to a draw-type high and low voltage switchgear cabinet. Background Art

[0002] A draw-type high and low voltage switchgear cabinet is a device used for electrical control and protection in a power system. It has maintainability and flexibility. The main part of the switchgear cabinet adopts a drawer structure, enabling components to be easily withdrawn and replaced, simplifying the maintenance process and reducing downtime.

[0003] The patent with the patent publication number CN210517564U relates to the technical field of electrical equipment. This patent provides a draw-type high and low voltage switchgear cabinet that is compact in structure, reasonable in design, convenient to use and easy to overhaul. It includes: a cabinet body, a handcart chamber, and a handcart circuit breaker. A handcart chamber for installing the handcart circuit breaker is provided in the middle of the cabinet body, and the handcart circuit breaker is connected to the cabinet body in a sliding manner. A support plate is provided on the front side of the handcart chamber, and the lower end of the support plate is hinged to the cabinet body through a pin shaft. A handle bolt is provided in the middle of the upper end of the support plate, and the support plate is fixed to the cabinet body through the handle bolt. Two tracks are provided on one side of the support plate, and the tracks are connected to the support plate by welding. Through the improvement of the draw-type high and low voltage switchgear cabinet, this patent has the advantages of being compact in structure, reasonable in design, convenient to use, and easy to overhaul, thus effectively solving the problems and deficiencies raised by this patent.

[0004] In the above patent, through the improvement of the draw-type high and low voltage switchgear cabinet, it has the advantages of being compact in structure, reasonable in design, convenient to use, and easy to overhaul, thus effectively solving the problems and deficiencies raised by this patent. However, the current measuring equipment has the following problems: when withdrawing the handcart circuit breaker, when it needs to be retracted after the operation is completed, directly retracting it may cause the handcart circuit breaker to contact the cabinet body and result in collision, causing wear to the handcart circuit breaker. Moreover, when the handcart circuit breaker needs to be used, the previous push-pull extraction method makes the use process cumbersome and easily increases downtime. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a draw-type high and low voltage switchgear cabinet, which solves the problems raised in the above background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A draw-out type high and low voltage switchgear, including a cabinet body, wherein a chute is provided on the inner wall of the cabinet body, a movable door is provided on the front side of the cabinet body, universal wheels are provided at the bottom of the cabinet body, and a drawing device, a supporting device and a limiting device are provided inside the cabinet body; among them, the drawing device includes a bearing plate, a handcart circuit breaker, a trigger block, a hollow block, a slider, a pressing rod, a second spring, a sliding rod, a chute block, a connecting rod and a buckle block. The bearing plate is slidably installed on the top of the chute, the handcart circuit breaker is fixedly installed on the top of the bearing plate, the trigger block is fixedly installed on the bottom of the bearing plate, the hollow block is fixedly installed on the right inner wall of the cabinet body, the slider is slidably installed inside the hollow block, the pressing rod is fixedly installed on the front side of the slider, the pressing rod slidably penetrates through the hollow block, a heart-shaped groove is opened on the top of the slider, the second spring is arranged between the slider and the hollow block, the sliding rod is rotatably installed on the top of the hollow block, the sliding rod contacts with the heart-shaped groove, the chute block is fixedly installed on the bottom of the slider, one side of the connecting rod is slidably installed inside the chute block, the other side of the connecting rod is rotatably installed inside the hollow block, and the buckle block is fixedly installed on the front side of the connecting rod. Pushing the bearing plate makes the bearing plate contact and cooperate with the pressing rod, and the slider, the sliding rod, the heart-shaped groove, the second spring, the chute block, the connecting rod, the buckle block, the trigger block and the pressing rod eject the bearing plate. The movement of the bearing plate drives the handcart circuit breaker to move out for operation, replacing the previous push-pull type extraction method.

[0007] According to the above technical solution, the drawing device further includes a fixed cylinder, a round rod, a first spring and a piston block. The fixed cylinder is fixedly installed on the inner wall of the cabinet body, the round rod slidably penetrates through the inner and outer walls of the fixed cylinder, the first spring is arranged between the fixed cylinder and the round rod, the piston block is fixedly installed on the rear side of the round rod, the piston block contacts with the fixed cylinder, hydraulic oil is provided inside the fixed cylinder, and a slot hole is opened on the front side of the piston block. The piston block will squeeze the hydraulic oil in the fixed cylinder so that the hydraulic oil enters the front side of the piston block through the slot hole. Because the slot hole is small, the return speed of the hydraulic oil is restricted when the piston block returns, that is, the return speed of the piston block is restricted. The slower the return speed of the piston block, the slower the return speed of the first spring.

[0008] According to the above technical solution, the supporting device includes a support frame, a rotating rod, a fixed sleeve and an anti-slip pad. The support frame is rotatably installed on the inner wall of the cabinet body, a first torsion spring is arranged between the support frame and the cabinet body, the rotating rod is rotatably installed inside the bearing plate, the fixed sleeve is rotatably installed on the outer wall of the rotating rod, the anti-slip pad is fixedly installed on the bottom of the fixed sleeve, and a docking groove is opened on the right side of the support frame. The movement of the bearing plate contacts with the support frame, so that the support frame temporarily supports the bearing plate. At the same time, the movement of the rotating rod cooperates with the triangular groove, the fixed sleeve, the rotating rod, the anti-slip pad, the limiting block, the round button, the L-shaped block, the third spring and the round groove to limit the rotating rod.

[0009] According to the above technical solution, the support device further includes a limit block, an L-shaped block, a round button, a third spring, and a triangular groove. The limit block is fixedly installed on the outer wall of the rotating rod. The L-shaped block is slidably installed on the inner wall of the fixed sleeve. The round button is fixedly installed on the top of the L-shaped block. The third spring is arranged between the L-shaped block and the fixed sleeve. The triangular groove is arranged on the top of the receiving plate. A round groove is formed on the surface of the limit block. When the support device needs to be retracted, by pressing down the L-shaped block and compressing the third spring at the same time, at this time, the rotating rod is driven to move to the initial position by moving the fixed sleeve, and the support device can be retracted.

[0010] According to the above technical solution, the limiting device includes a hollow block one, a clamping block, and a fourth spring. The hollow block one fixedly penetrates the inner and outer walls of the cabinet. The clamping block is slidably installed on the inner wall of the hollow block one. The fourth spring is arranged between the clamping block and the hollow block one. When the receiving plate moves and contacts the clamping block, the clamping block moves into the hollow block one, and at the same time, the fourth spring is compressed. Through the movement of the triangular groove, when the triangular groove and the clamping block are at the same level, the fourth spring is released and drives the clamping block to insert into the triangular groove.

[0011] According to the above technical solution, the limiting device further includes a hollow block two, an insertion block, a moving block, and a fifth spring. The hollow block two fixedly penetrates the inner and outer walls of the cabinet. The insertion block is slidably installed on the inner wall of the hollow block two. The bottom of the moving block is slidably installed on the inner wall of the hollow block two. The fifth spring is arranged between the insertion block and the moving block. When the support frame rotates and contacts the inclined surface of the insertion block, the insertion block moves into the hollow block two and compresses the fifth spring at the same time. When the docking groove and the insertion block are at the same level, the fifth spring is released and drives the insertion block to insert into the docking groove.

[0012] According to the above technical solution, the limiting device further includes a T-shaped block and a pin. The T-shaped block is slidably installed on the inner wall of the hollow block two. The pin slidably penetrates the inner and outer walls of the hollow block two. The rear side of the moving block is fixedly installed on the front side of the T-shaped block. If it is necessary to release the restriction, by pressing the contact between the pin and the inclined surface of the T-shaped block, the T-shaped block moves to the right. The T-shaped block moving to the right drives the moving block to move. The moving block moving will stretch the fifth spring. When the fifth spring is stretched to a certain extent, it will drive the insertion block to move so that the insertion block disengages from the docking groove. At this time, the support frame loses the restriction of the insertion block.

[0013] According to the above technical solution, a sixth spring is arranged between the T-shaped block and the hollow block two, and a seventh spring is arranged between the pin and the hollow block two. The sixth spring is provided to drive the T-shaped block to reset, and the seventh spring is provided to drive the pin to reset.

[0014] The present invention provides a draw-out type high and low voltage switch cabinet. It has the following beneficial effects:

[0015] (1) The invention, through the setting of the pulling device, the receiving plate moves backward and contacts the round rod, cooperates with the No. 1 spring, piston block, fixed cylinder and hydraulic oil to play a buffering role, which can effectively reduce collisions and prevent the receiving plate from causing damage to the cabinet. At the same time, it can also reduce noise, improve the use experience, and thus extend the service life. The movement of the receiving plate drives the trigger block to move, and cooperates with the pressure rod, slider, slide block, No. 2 spring, heart-shaped groove, connecting rod, buckle block and trigger block to limit the movement of the receiving plate, preventing the receiving plate from accidentally falling off, ensuring safe use. When the receiving plate needs to be pulled out, the receiving plate is pushed backward so that the receiving plate contacts the pressure rod and cooperates with the slider, slider, heart-shaped groove, No. 2 spring, slide block, connecting rod, buckle block, trigger block and pressure rod to pop out the receiving plate. The movement of the receiving plate drives the trolley circuit breaker to move out for operation, replacing the previous push-pull extraction method, simplifying the use process, and reducing downtime.

[0016] (2) The invention, through the setting of the support device, moves the receiving plate to contact the support frame so that the support frame temporarily supports the receiving plate, and at the same time, the rotating rod moves to cooperate with the triangular groove, fixed sleeve, rotating rod, anti-slip pad, limit block, round button, L-shaped block, No. 3 spring and round groove to limit the rotating rod to prevent the rotating rod from tilting. At this time, the support device will support the front side of the receiving plate to prevent the receiving plate from shaking or tilting when it is fully opened or bearing heavy objects, thereby improving the safety and comfort of use. When it is necessary to retract the support device, the No. 3 spring is compressed by pressing down the L-shaped block. At this time, the rotating rod is driven to move to the initial position by moving the fixed sleeve, and the support device can be folded. When not in use, the support device is easier to store after shrinking, which reduces the space occupied and makes organization easier.

[0017] (3) The invention, through the setting of the limit device, the movement of the receiving plate and the contact with the positioning block cooperate with the hollow block No. 1, No. 4 springs, the triangular groove and the positioning block so that the receiving plate cannot move forward further, thereby limiting the moving distance of the receiving plate to prevent the moving distance of the receiving plate from being unlimited and causing operational errors. When the support frame rotates, the contact with the inclined surface of the plug block cooperates with the hollow block No. 2, No. 5 springs and the docking groove to limit the movement of the support frame, thereby preventing the support frame from rotating due to external force and causing the receiving plate to be unstable. If the restriction needs to be lifted, the contact with the inclined surface of the T-shaped block cooperates with the moving block, No. 5 spring and the plug block to make the support frame lose the restriction of the plug block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the cabinet of the present invention;

[0020] Figure 3 It is a partial cross-sectional schematic diagram of the pumping device of the present invention;

[0021] Figure 4 Structural schematic diagram of the trigger block and the buckle block of the present invention;

[0022] Figure 5 Structural schematic diagram of the connecting rod and the sliding groove block of the present invention;

[0023] Figure 6 Structural schematic diagram of the support frame and the bearing plate of the present invention;

[0024] Figure 7 Structural schematic diagram of the support device of the present invention;

[0025] Figure 8 Partial sectional structural schematic diagram of the limiting device of the present invention.

[0026] In the figure: 1, cabinet body; 10, bearing plate; 11, handcart circuit breaker; 12, fixed cylinder; 13, round rod; 14, first spring; 15, piston block; 16, trigger block; 17, hollow block; 18, slider; 19, pressure rod; 110, second spring; 111, sliding rod; 112, sliding groove block; 113, connecting rod; 114, buckle block; 20, support frame; 21, rotating rod; 22, limiting block; 23, fixed sleeve; 24, L-shaped block; 25, round button; 26, third spring; 27, anti-slip pad; 28, triangular groove; 30, first hollow block; 31, clamping block; 32, fourth spring; 33, second hollow block; 34, inserting block; 35, moving block; 36, fifth spring; 37, T-shaped block; 38, bolt. Specific embodiments

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1-5, an embodiment of the present invention is: a draw-out type high and low voltage switch cabinet, including a cabinet body 1. A chute is provided on the inner wall of the cabinet body 1. A movable door is provided on the front side of the cabinet body 1. Universal wheels are provided at the bottom of the cabinet body 1. A drawing device is arranged inside the cabinet body 1. The drawing device includes a bearing plate 10, a handcart circuit breaker 11, a trigger block 16, a hollow block 17, a slider 18, a pressure rod 19, a second spring 110, a slide rod 111, a chute block 112, a connecting rod 113 and a buckle block 114. The bearing plate 10 is slidably installed on the top of the chute. The handcart circuit breaker 11 is fixedly installed on the top of the bearing plate 10. The trigger block 16 is fixedly installed on the bottom of the bearing plate 10. The hollow block 17 is fixedly installed on the right side of the inner wall of the cabinet body 1. The slider 18 is slidably installed inside the hollow block 17. The pressure rod 19 is fixedly installed on the front side of the slider 18. The pressure rod 19 slidably penetrates through the hollow block 17. A heart-shaped groove is formed on the top of the slider 18. The second spring 110 is arranged between the slider 18 and the hollow block 17. The slider 18 is driven to reset by the provided second spring 110. The slide rod 111 is rotatably installed on the top of the hollow block 17. The slide rod 111 contacts the heart-shaped groove. The chute block 112 is fixedly installed on the bottom of the slider 18. One side of the connecting rod 113 is slidably installed inside the chute block 112. The other side of the connecting rod 113 is rotatably installed inside the hollow block 17. The buckle block 114 is fixedly installed on the front side of the connecting rod 113. It replaces the previous push-pull extraction method and improves the usage speed of the handcart circuit breaker 11.

[0029] The drawing device further includes a fixed cylinder 12, a round rod 13, a first spring 14 and a piston block 15. The fixed cylinder 12 is fixedly installed on the inner wall of the cabinet body 1. The round rod 13 slidably penetrates through the inner and outer walls of the fixed cylinder 12. The first spring 14 is arranged between the fixed cylinder 12 and the round rod 13. The round rod 13 is driven to reset by the provided first spring 14. The piston block 15 is fixedly installed on the rear side of the round rod 13. The piston block 15 contacts the fixed cylinder 12. Hydraulic oil is arranged inside the fixed cylinder 12. A slot is formed on the front side of the piston block 15. That is, it plays a buffering role in the touch of the bearing plate 10, can effectively reduce collisions, prevent the bearing plate 10 from damaging the cabinet body 1, and at the same time can also reduce noise and improve the usage experience, thereby prolonging the service life.

[0030] When this embodiment works, by moving the receiving plate 10 backward, when the receiving plate 10 contacts the round rod 13, the round rod 13 moves backward and compresses the first spring 14 at the same time. While the round rod 13 moves, it drives the piston block 15 to move. The piston block 15 squeezes the hydraulic oil in the fixed cylinder 12 so that the hydraulic oil enters the front side of the piston block 15 through the slot holes. Because the slot holes are small, the return speed of the hydraulic oil is restricted when the piston block 15 resets, that is, the reset speed of the piston block 15 is restricted. The slower the reset speed of the piston block 15 is, the slower the reset speed of the first spring 14 is, that is, it plays a buffering role in touching the receiving plate 10, can effectively reduce collisions, prevent the receiving plate 10 from damaging the cabinet body 1, and at the same time can also reduce noise and improve the use experience, thereby prolonging the service life. The movement of the receiving plate 10 drives the trigger block 16 to move. When the rear side of the receiving plate 10 contacts the pressure rod 19, the pressure rod 19 moves backward. The backward movement of the pressure rod 19 drives the slider 18 to move. While the slider 18 moves, it drives the sliding groove block 112 to move and compresses the second energy storage spring 110. At this time, the sliding rod 111 moves along the heart-shaped groove until it is restricted by the heart-shaped groove. When the front side of the sliding groove of the sliding groove block 112 contacts the connecting rod 113, the connecting rod 113 rotates upward. The upward rotation of the connecting rod 113 drives the buckle 114 to move. The movement of the buckle 114 will contact the trigger block 16. At this time, the connecting rod 113 restricts the trigger block 16 so that the trigger block 16 cannot move forward, that is, restricts the movement of the receiving plate 10, prevents the receiving plate 10 from accidentally falling off completely, and ensures the use safety. When it is necessary to draw out the receiving plate 10, push the receiving plate 10 backward so that the receiving plate 10 contacts the pressure rod 19. The pressure rod 19 drives the slider 18 to move backward. The movement of the slider 18 makes the sliding rod 111 move from the restricted position along the heart-shaped groove to the initial position. At this time, the second spring 110 is released to drive the slider 18 to move. At the same time, the slider 18 drives the sliding groove block 112 to move. The movement of the sliding groove block 112 makes the rear side of the sliding groove contact the connecting rod 113 so that the connecting rod 113 rotates downward. The downward rotation of the connecting rod 113 drives the buckle 114 to release the restriction on the trigger block 16. At this time, the movement of the slider 18 drives the pressure rod 19 to move. The movement of the pressure rod 19 will eject the receiving plate 10. The movement of the receiving plate 10 drives the trolley circuit breaker 11 out for operation, replacing the previous push-pull extraction method and improving the use speed of the trolley circuit breaker 11.

[0031] Please refer to Figures 1-8, on the basis of the above embodiments, in another embodiment of the present invention, a support device and a limiting device are provided inside the cabinet body 1. The support device includes a support frame 20, a rotating rod 21, a fixed sleeve 23, and an anti-slip pad 27. The support frame 20 is rotatably installed on the inner wall of the cabinet body 1. A first torsion spring is provided between the support frame 20 and the cabinet body 1. The first torsion spring drives the support frame 20 to reset. The rotating rod 21 is rotatably installed on the inner wall of the receiving plate 10. The fixed sleeve 23 is rotatably installed on the outer wall of the rotating rod 21. The anti-slip pad 27 is fixedly installed at the bottom of the fixed sleeve 23. A docking groove is provided on the right side of the support frame 20 to prevent the receiving plate 10 from shaking or tilting when it is fully opened or bearing heavy objects, thereby improving the safety and comfort of use.

[0032] The support device further includes a limiting block 22, an L-shaped block 24, a round button 25, a third spring 26, and a triangular groove 28. The limiting block 22 is fixedly installed on the outer wall of the rotating rod 21. The L-shaped block 24 is slidably installed on the inner wall of the fixed sleeve 23. The round button 25 is fixedly installed on the top of the L-shaped block 24. The third spring 26 is arranged between the L-shaped block 24 and the fixed sleeve 23. The third spring drives the L-shaped block 24 to reset. The triangular groove 28 is arranged on the top of the receiving plate 10. A round groove is provided on the surface of the limiting block 22. When not in use, the support device is easier to store after contraction, reducing the occupied space and making the arrangement more convenient.

[0033] The limiting device includes a hollow block one 30, a clamping block 31, and a fourth spring 32. The hollow block one 30 fixedly penetrates the inner and outer walls of the cabinet body 1. The clamping block 31 is slidably installed on the inner wall of the hollow block one 30. The fourth spring 32 is arranged between the clamping block 31 and the hollow block one 30. The fourth spring 32 drives the clamping block 31 to reset.

[0034] The limiting device further includes a hollow block two 33, an insertion block 34, a moving block 35, and a fifth spring 36. The hollow block two 33 fixedly penetrates the inner and outer walls of the cabinet body 1. The insertion block 34 is slidably installed on the inner wall of the hollow block two 33. The bottom of the moving block 35 is slidably installed on the inner wall of the hollow block two 33. The fifth spring 36 is arranged between the insertion block 34 and the moving block 35. The fifth spring 36 drives the insertion block 34 to reset.

[0035] The limiting device further includes a T-shaped block 37 and a pin 38. The T-shaped block 37 is slidably installed on the inner wall of the hollow block two 33. The pin 38 slidably penetrates the inner and outer walls of the hollow block two 33. The rear side of the moving block 35 is fixedly installed on the front side of the T-shaped block 37, so that the support frame 20 loses the restriction of the insertion block 34.

[0036] A sixth spring is arranged between the T-shaped block 37 and the hollow block two 33. The sixth spring drives the T-shaped block 37 to reset. A seventh spring is arranged between the pin 38 and the hollow block two 33. The seventh spring drives the pin 38 to reset.

[0037] When the present embodiment is working, the support frame 20 is rotated downward by moving the receiving plate 10 to contact with the support frame 20 until the receiving plate 10 is supported, which plays a temporary support role for the moving out of the receiving plate 10. The receiving plate 10 is moved out and the rotating rod 21 is moved and the triangular groove 28 is moved at the same time. At this time, the fixing sleeve 23 is moved downward, and the fixing sleeve 23 drives the rotating rod 21 to rotate downward and drives the anti-slip pad 27 to move. When it moves to a vertical distance, the inclined surface of the limit block 22 will contact the round button 25, so that the round button 25 drives the L-shaped block 24 to move downward and compress the No. 3 spring 26. When the round groove and the round button 25 are at the same level, the No. 3 spring 26 is When the support device is released and the L-shaped block 24 is reset, the L-shaped block 24 resets and the round button 25 is inserted into the round groove. At this time, the rotating rod 21 is limited to prevent the rotating rod 21 from tilting. At this time, the supporting device will support the front side of the receiving plate 10 to prevent the receiving plate 10 from shaking or tilting when it is fully opened or bearing heavy objects, thereby improving the safety and comfort of use. When the supporting device needs to be retracted, the L-shaped block 24 is pressed down and the No. 3 spring 26 is compressed at the same time. At this time, the rotating rod 21 is driven to move to the initial position by moving the fixing sleeve 23, and the supporting device can be retracted. When not in use, the supporting device is easier to store after being retracted, which reduces the occupied space and makes it easier to organize.

[0038] The receiving plate 10 moves and contacts the positioning block 31, so that the positioning block 31 moves toward the inside of the hollow block 1 30, and at the same time compresses the No. 4 spring 32. Through the movement of the triangular groove 28, when the triangular groove 28 and the positioning block 31 are at the same level, the No. 4 spring 32 is released and drives the positioning block 31 to insert into the triangular groove 28. At this time, the receiving plate 10 cannot continue to move forward, which limits the moving distance of the receiving plate 10 and prevents the moving distance of the receiving plate 10 from being unlimited and causing operational errors. When the support frame 20 rotates, it contacts the inclined surface of the insertion block 34, so that the insertion block 34 moves toward the inside of the hollow block 2 33 and at the same time compresses the No. 5 spring 36. When the connecting groove and the plug block 34 are at the same level, the No. 5 spring 36 is released and drives the plug block 34 to be inserted into the connecting groove. At this time, the movement of the support frame 20 is restricted by the plug block 34 to prevent the support frame 20 from rotating due to external force, which causes the receiving plate 10 to be unstable. If the restriction needs to be lifted, the contact between the pressing pin 38 and the inclined surface of the T-shaped block 37 is made to move to the right. The movement of the T-shaped block 37 to the right drives the moving block 35 to move. The movement of the moving block 35 will stretch the No. 5 spring 36. When the No. 5 spring 36 is stretched to a certain extent, it will drive the plug block 34 to move so that the plug block 34 is out of the connecting groove. At this time, the support frame 20 loses the restriction of the plug block 34.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A withdrawable high and low voltage switch cabinet, comprising a cabinet body (1), characterized in that: The inner wall of the cabinet (1) is provided with a slide groove, the front side of the cabinet (1) is provided with a movable door, the bottom of the cabinet (1) is provided with a universal wheel, and the interior of the cabinet (1) is provided with a pulling device, a supporting device and a limiting device; The pulling device comprises a receiving plate (10), a trolley circuit breaker (11), a trigger block (16), a hollow block (17), a slider (18), a pressure rod (19), a second spring (110), a slider (111), a slide block (112), a connecting rod (113) and a buckle block (114); the receiving plate (10) is slidably mounted on the top of the slide; the trolley circuit breaker (11) is fixedly mounted on the top of the receiving plate (10); the trigger block (16) is fixedly mounted on the bottom of the receiving plate (10); the hollow block (17) is fixedly mounted on the right side of the inner wall of the cabinet (1); the slider (18) is slidably mounted on the inner wall of the hollow block (17); the pressure rod (19) is fixedly mounted on the inner wall of the hollow block (17); The slide block (112) is fixedly mounted on the bottom of the slide block (18); one side of the connecting rod (113) is slidably mounted on the inner wall of the slide block (112); the other side of the connecting rod (113) is rotatably mounted on the inner wall of the hollow block (17); and the buckle block (114) is fixedly mounted on the front side of the connecting rod (113).

2. A withdrawable high and low voltage switch cabinet according to claim 1, characterized in that: The pumping device further comprises a fixed cylinder (12), a round rod (13), a first spring (14) and a piston block (15); the fixed cylinder (12) is fixedly mounted on the inner wall of the cabinet (1); the round rod (13) slides through the inner and outer walls of the fixed cylinder (12); the first spring (14) is arranged between the fixed cylinder (12) and the round rod (13); the piston block (15) is fixedly mounted on the rear side of the round rod (13); the piston block (15) contacts the fixed cylinder (12); hydraulic oil is arranged inside the fixed cylinder (12); and a slot is provided on the front side of the piston block (15).

3. A withdrawable high and low voltage switch cabinet according to claim 2, characterized in that: The support device comprises a support frame (20), a rotating rod (21), a fixing sleeve (23) and an anti-skid pad (27); the support frame (20) is rotatably mounted on the inner wall of the cabinet (1); a first torsion spring is arranged between the support frame (20) and the cabinet (1); the rotating rod (21) is rotatably mounted on the inner wall of the receiving plate (10); the fixing sleeve (23) is rotatably mounted on the outer wall of the rotating rod (21); the anti-skid pad (27) is fixedly mounted on the bottom of the fixing sleeve (23); and a docking groove is provided on the right side of the support frame (20).

4. A withdrawable high and low voltage switch cabinet according to claim 3, characterized in that: The supporting device further comprises a limit block (22), an L-shaped block (24), a round button (25), a third spring (26) and a triangular groove (28); the limit block (22) is fixedly mounted on the outer wall of the rotating rod (21); the L-shaped block (24) is slidably mounted on the inner wall of the fixing sleeve (23); the round button (25) is fixedly mounted on the top of the L-shaped block (24); the third spring (26) is arranged between the L-shaped block (24) and the fixing sleeve (23); the triangular groove (28) is arranged on the top of the receiving plate (10); and a round groove is provided on the surface of the limit block (22).

5. The withdrawable high and low voltage switch cabinet according to claim 4 is characterized in that: The limiting device comprises a hollow block (30), a positioning block (31) and a No. 4 spring (32); the hollow block (30) is fixedly passed through the inner and outer walls of the cabinet (1); the positioning block (31) is slidably mounted on the inner wall of the hollow block (30); and the No. 4 spring (32) is arranged between the positioning block (31) and the hollow block (30).

6. A withdrawable high and low voltage switch cabinet according to claim 5, characterized in that: The limiting device also includes a hollow block 2 (33), an insert block (34), a moving block (35) and a No. 5 spring (36); the hollow block 2 (33) is fixedly passed through the inner and outer walls of the cabinet (1); the insert block (34) is slidably mounted on the inner wall of the hollow block 2 (33); the bottom of the moving block (35) is slidably mounted on the inner wall of the hollow block 2 (33); and the No. 5 spring (36) is arranged between the insert block (34) and the moving block (35).

7. The withdrawable high and low voltage switch cabinet according to claim 6 is characterized in that: The limiting device also includes a T-shaped block (37) and a latch (38), wherein the T-shaped block (37) is slidably mounted on the inner wall of the second hollow block (33), and the latch (38) slidably penetrates the inner and outer walls of the second hollow block (33), and the rear side of the moving block (35) is fixedly mounted on the front side of the T-shaped block (37).

8. The withdrawable high and low voltage switch cabinet according to claim 7 is characterized in that: A No. 6 spring is arranged between the T-shaped block (37) and the second hollow block (33), and a No. 7 spring is arranged between the latch (38) and the second hollow block (33).

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