Draw-out type high-low voltage switch cabinet

Abstract

The invention discloses a draw-out type high-low voltage switch cabinet, and relates to the technical field of electrical equipment, the draw-out type high-low voltage switch cabinet comprises a cabinet body, the inner wall of the cabinet body is provided with a chute, the front side of the cabinet body is provided with a movable door, the bottom of the cabinet body is provided with universal wheels, and the cabinet body is internally provided with a drawing device, a supporting device and a limiting device; a round rod is matched with a first spring, a piston block, a fixed cylinder and hydraulic oil, so that collision can be effectively reduced, damage to the cabinet body caused by the bearing plate is prevented, meanwhile, noise can be reduced, the use experience is improved, and the service life is prolonged; the trigger block is movably matched with the pressing rod, the sliding block, the sliding groove block, the second spring, the heart-shaped groove, the connecting rod, the buckling block and the trigger block to prevent the bearing plate from accidentally and completely falling off, use safety is ensured, the pressing rod, the second spring, the sliding groove block, the connecting rod, the buckling block, the trigger block and the pressing rod replace an existing push-pull type extraction mode, and the use speed of the handcart circuit breaker is increased.

Description

Technical Field

[0001] The invention relates to the technical field of electrical equipment, in particular to a draw-out high and low voltage switch cabinet. Background Art

[0002] The withdrawable high and low voltage switchgear is a device used for electrical control and protection in power systems. It is maintainable and flexible. The main part of the switchgear adopts a drawer-type structure, so that the components can be easily withdrawn and replaced, simplifying the maintenance process and reducing downtime.

[0003] The patent with the patent announcement number CN210517564U relates to the field of electrical equipment technology. The patent provides a high and low voltage switch cabinet with a compact structure, reasonable design, convenient use and easy maintenance; including: a cabinet, a trolley room, and a trolley circuit breaker; a trolley room for placing the trolley circuit breaker is provided in the middle of the cabinet, and the trolley circuit breaker is connected to the cabinet by sliding; a support plate is provided on the front side of the trolley room, and the lower end of the support plate is hinged to the cabinet through a pin; a handle bolt is provided in the middle of the upper end of the support plate, and the support plate is fixedly connected to the cabinet through the handle bolt; two tracks are provided on one side of the support plate, and the track is connected to the support plate by welding. This patent has the advantages of compact structure, reasonable design, convenient use, and easy maintenance through the improvement of the withdrawable high and low voltage switch cabinet, thereby effectively solving the problems and shortcomings raised by the patent.

[0004] In the above patent, through the improvement of the withdrawable high and low voltage switch cabinet, it has the advantages of compact structure, reasonable design, easy use, easy maintenance, etc., thereby effectively solving the problems and shortcomings raised in the patent. However, the current measuring equipment has the following problems: when extracting the trolley circuit breaker, when the trolley circuit breaker needs to be retracted after the operation is completed, direct retraction may cause the trolley circuit breaker to contact with the cabinet body and cause collision, causing wear of the trolley circuit breaker, and when the trolley 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] In view of the deficiencies in the prior art, the present invention provides a withdrawable high and low voltage switch cabinet, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a withdrawable high and low voltage switch cabinet, comprising a cabinet body, the inner wall of the cabinet body is provided with a slide groove, the front side of the cabinet body is provided with a movable door, the 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, the pulling device comprises a receiving plate, a trolley circuit breaker, a trigger block, a hollow block, a slider, a pressure rod, a No. 2 spring, a slide rod, a slide groove block, a connecting rod and a buckle block, the receiving plate is slidably mounted on the top of the slide groove, the trolley circuit breaker is fixedly mounted on the top of the receiving plate, the trigger block is fixedly mounted on the bottom of the receiving plate, the hollow block is fixedly mounted on the inner wall of the cabinet body, and the slider is slidably mounted on the inner wall of the hollow block. The pressure rod is fixedly installed on the front side of the slider, and the pressure rod slides through the hollow block. A heart-shaped groove is opened on the top of the slider, and the No. 2 spring is arranged between the slider and the hollow block. The slide rod is rotatably installed on the top of the hollow block, and the slide rod is in contact with the heart-shaped groove. The slide groove block is fixedly installed on the bottom of the slider, one side of the connecting rod is slidably installed on the inner wall of the slide groove block, and the other side of the connecting rod is rotatably installed on the inner wall of the hollow block. The buckle block is fixedly installed on the front side of the connecting rod, pushing the receiving plate so that the receiving plate contacts the pressure rod and cooperates with the slider, slide rod, heart-shaped groove, No. 2 spring, slide groove block, connecting rod, buckle block, trigger block and pressure rod to pop out the receiving plate, and the movement of the receiving plate drives the trolley circuit breaker to move out for operation, replacing the previous push-pull extraction method.

[0007] According to the above technical solution, the pumping device also includes a fixed cylinder, a round rod, a No. 1 spring and a piston block. The fixed cylinder is fixedly installed on the inner wall of the cabinet, the round rod slides through the inner and outer walls of the fixed cylinder, the No. 1 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 is in contact with the fixed cylinder, hydraulic oil is arranged inside the fixed cylinder, a slot is provided 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. Because the slot is small, the reflux speed of the hydraulic oil is limited when the piston block is reset, that is, the reset speed of the piston block is limited. The slower the reset speed of the piston block, the slower the reset speed of the No. 1 spring.

[0008] According to the above technical scheme, the supporting device includes a supporting frame, a rotating rod, a fixing sleeve and an anti-slip pad. The supporting frame is rotatably installed on the inner wall of the cabinet, and a No. 1 torsion spring is arranged between the supporting frame and the cabinet. The rotating rod is rotatably installed on the inner wall of the receiving plate, and the fixing sleeve is rotatably installed on the outer wall of the rotating rod. The anti-slip pad is fixedly installed on the bottom of the fixing sleeve. A docking groove is provided on the right side of the supporting frame. The receiving plate is moved and contacted with the supporting frame so that the supporting frame temporarily supports the receiving plate. At the same time, the rotating rod moves to cooperate with the triangular groove, the fixing sleeve, the rotating rod, the anti-slip pad, the limit block, the round button, the L-shaped block, the No. 3 spring and the round groove to limit the rotating rod.

[0009] According to the above technical solution, the support device also includes a limit block, an L-shaped block, a round button, a No. 3 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 No. 3 spring is arranged between the L-shaped block and the fixed sleeve, the triangular groove is arranged on the top of the receiving plate, and a circular groove is opened on the surface of the limit block. When the support device needs to be retracted, the No. 3 spring is compressed simultaneously 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 retracted.

[0010] According to the above technical solution, the limiting device includes a hollow block 1, a locking block and a No. 4 spring. The hollow block 1 is fixed and passes through the inner and outer walls of the cabinet. The locking block is slidably installed on the inner wall of the hollow block 1. The No. 4 spring is arranged between the locking block and the hollow block 1. The locking block moves toward the inside of the hollow block 1 and compresses the No. 4 spring at the same time through the movement of the triangular groove. When the triangular groove and the locking block are at the same level, the No. 4 spring is released and drives the locking block to be inserted into the triangular groove.

[0011] According to the above technical solution, the limiting device also includes a hollow block 2, an insert block, a moving block and a No. 5 spring. The hollow block 2 is fixed and passes through the inner and outer walls of the cabinet. The insert block is slidably installed on the inner wall of the hollow block 2. The bottom of the moving block is slidably installed on the inner wall of the hollow block 2. The No. 5 spring is arranged between the insert block and the moving block. When the support frame rotates, it contacts the inclined surface of the insert block so that the insert block moves toward the inside of the hollow block 2 and compresses the No. 5 spring at the same time. When the docking groove and the insert block are at the same level, the No. 5 spring is released and drives the insert block to be inserted into the docking groove.

[0012] According to the above technical solution, the limiting device also includes a T-shaped block and a latch, the T-shaped block is slidably installed on the second inner wall of the hollow block, the latch slides through the second inner and outer walls of the hollow block, and the rear side of the movable block is fixedly installed on the front side of the T-shaped block. If the restriction needs to be released, the T-shaped block is moved to the right by pressing the latch and the inclined surface of the T-shaped block. The movement of the T-shaped block to the right drives the movable block to move. The movement of the movable block will stretch the No. 5 spring. When the No. 5 spring is stretched to a certain extent, it will drive the insertion block to move so that the insertion block is out of the docking groove. At this time, the support frame loses the restriction of the insertion block.

[0013] According to the above technical solution, a No. 6 spring is arranged between the T-shaped block and the hollow block 2, and a No. 7 spring is arranged between the latch and the hollow block 2. The No. 6 spring is used to drive the T-shaped block to reset, and the No. 7 spring is used to drive the latch to reset.

[0014] The present invention provides a withdrawable high and low voltage switch cabinet. It has the following beneficial effects: (1) In the present invention, by setting a pulling device, the receiving plate moves backward and contacts the round rod, and 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 and 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.

[0015] (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. 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 it easier to organize.

[0016] (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, triangular groove and the positioning block so that the receiving plate cannot move forward further, thereby limiting the moving distance of the receiving plate and preventing 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 and prevent 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 by pressing the latch so that the support frame loses the restriction of the plug block. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the cabinet of the present invention; Figure 3 It is a partial cross-sectional schematic diagram of the pumping device of the present invention; Figure 4 This is a schematic diagram of the position structure of the trigger block and the buckle block of the present invention; Figure 5 This is a schematic diagram of the position structure of the connecting rod and the chute block of the present invention; Figure 6 It is a schematic diagram of the position structure of the support frame and the receiving plate of the present invention; Figure 7 It is a schematic diagram of the structure of the support device of the present invention; Figure 8 It is a schematic diagram of the partial cross-sectional structure of the limiting device of the present invention.

[0018] In the figure: 1. cabinet; 10. receiving plate; 11. trolley circuit breaker; 12. fixing cylinder; 13. round rod; 14. spring No. 1; 15. piston block; 16. trigger block; 17. hollow block; 18. slider; 19. pressure rod; 110. spring No. 2; 111. slide bar; 112. slide block; 113. connecting rod; 114. buckle block; 20. support frame; 21. rotating rod; 22. limit block; 23. fixing sleeve; 24. L-shaped block; 25. round button; 26. spring No. 3; 27. anti-skid pad; 28. triangular groove; 30. hollow block No. 1; 31. positioning block; 32. spring No. 4; 33. hollow block No. 2; 34. plug block; 35. moving block; 36. spring No. 5; 37. T-shaped block; 38. latch. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 5One embodiment of the present invention is: a withdrawable high and low voltage switch cabinet, including a cabinet 1, 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 cabinet 1 is provided with a pulling device inside. The pulling device includes 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 slide bar 111, a slide groove block 112, a connecting rod 113 and a buckle block 114. The receiving plate 10 is slidably installed on the top of the slide groove, the trolley circuit breaker 11 is fixedly installed on the top of the receiving plate 10, the trigger block 16 is fixedly installed on the bottom of the receiving plate 10, the hollow block 17 is fixedly installed on the inner wall of the cabinet 1, and the slider 18 is slidably installed on the hollow The inner wall of block 17, the pressure rod 19 is fixedly installed on the front side of the slider 18, the pressure rod 19 slides through the hollow block 17, the top of the slider 18 is provided with a heart-shaped groove, the No. 2 spring 110 is arranged between the slider 18 and the hollow block 17, and the slider 18 is reset by the arranged No. 2 spring 110, the slide bar 111 is rotatably installed on the top of the hollow block 17, the slide bar 111 contacts the heart-shaped groove, the slide block 112 is fixedly installed on the bottom of the slider 18, one side of the connecting rod 113 is slidably installed on the inner wall of the slide block 112, and the other side of the connecting rod 113 is rotatably installed on the inner wall of the hollow block 17, and the buckle block 114 is fixedly installed on the front side of the connecting rod 113, which replaces the previous push-pull extraction method and improves the use speed of the opponent car circuit breaker 11.

[0021] The pumping device also includes a fixed cylinder 12, a round rod 13, a No. 1 spring 14 and a piston block 15. The fixed cylinder 12 is fixedly installed on the inner wall of the cabinet 1, and the round rod 13 slides through the inner and outer walls of the fixed cylinder 12. The No. 1 spring 14 is arranged between the fixed cylinder 12 and the round rod 13. The round rod 13 is reset by the arranged No. 1 spring 14. The piston block 15 is fixedly installed on the rear side of the round rod 13. The piston block 15 is in contact with the fixed cylinder 12. Hydraulic oil is arranged inside the fixed cylinder 12. A slot is opened on the front side of the piston block 15, which plays a buffering role for the touch of the receiving plate 10, can effectively reduce collisions, and prevent the receiving plate 10 from causing damage to the cabinet 1. At the same time, it can also reduce noise, improve the use experience, and thus extend the service life.

[0022] When the embodiment is working, the receiving plate 10 is moved backward. When the receiving plate 10 contacts the round rod 13, the round rod 13 moves backward and compresses the spring 14. The round rod 13 moves and 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. Because the slot is small, the reflux speed of the hydraulic oil is limited when the piston block 15 is reset, that is, the reset speed of the piston block 15 is limited. The slower the reset speed of the piston block 15 is, the slower the reset speed of the spring 14 is, that is, the contact with the receiving plate 10 is It plays a buffering role, can effectively reduce collisions, prevent the receiving plate 10 from causing damage to the cabinet 1, and can also reduce noise, improve the user experience, and thus extend the service life. The receiving plate 10 moves to drive 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 pressure rod 19 moves backward to drive the slider 18 to move. When the slider 18 moves, it drives the slide block 112 to move and compresses the force storage spring No. 2 110. At this time, the slide bar 111 moves along the heart-shaped groove until it is restricted by the heart-shaped groove. When the front side of the slide groove of the slide block 112 is in contact with the connecting rod 11 3, the connecting rod 113 rotates upward, and the connecting rod 113 rotates upward to drive the buckle block 114 to move. The buckle block 114 moves and contacts 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 to prevent the receiving plate 10 from accidentally falling off completely, ensuring safety in use. When the receiving plate 10 needs to be pulled out, the receiving plate 10 is pushed backward so that the receiving plate 10 contacts the pressure rod 19, and the pressure rod 19 drives the slider 18 to move backward. The movement of the slider 18 causes the slide bar 111 to move from the restriction position along the heart-shaped groove to the initial position. The slider 18 moves to the starting position, at which time the No. 2 spring 110 is released to drive the slider 18 to move, and at the same time the slider 18 drives the slide block 112 to move, and the slide block 112 moves so that the rear side of the slide contacts the connecting rod 113, so that the connecting rod 113 rotates downward, and the connecting rod 113 rotates downward to drive the buckle block 114 to break away from the restriction on the trigger block 16, and at this time the movement of the slider 18 drives the pressure rod 19 to move, and the movement of the pressure rod 19 will pop out the receiving plate 10, and the movement of the receiving plate 10 drives the trolley circuit breaker 11 to move out for operation, which replaces the previous push-pull extraction method and improves the use speed of the trolley circuit breaker 11.

[0023] See also Figure 1-Figure 8On the basis of the above embodiment, in another embodiment of the present invention, a supporting device and a limiting device are provided inside the cabinet 1, and the supporting device includes a supporting frame 20, a rotating rod 21, a fixing sleeve 23 and an anti-slip pad 27. The supporting frame 20 is rotatably installed on the inner wall of the cabinet 1, and a No. 1 torsion spring is provided between the supporting frame 20 and the cabinet 1, and the supporting frame 20 is driven to reset by the provided No. 1 torsion spring, the rotating rod 21 is rotatably installed on the inner wall of the receiving plate 10, the fixing sleeve 23 is rotatably installed on the outer wall of the rotating rod 21, and the anti-slip pad 27 is fixedly installed on the bottom of the fixing sleeve 23. A docking groove is provided on the right side of the supporting frame 20 to prevent the receiving plate 10 from shaking or tilting when it is fully opened or subjected to heavy objects, thereby improving the safety and comfort of use.

[0024] The supporting device also includes a limit block 22, an L-shaped block 24, a round button 25, a No. 3 spring 26 and a triangular groove 28. The limit 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 fixing sleeve 23, the round button 25 is fixedly installed on the top of the L-shaped block 24, and the No. 3 spring 26 is arranged between the L-shaped block 24 and the fixing sleeve 23. The L-shaped block 24 is reset by the arranged No. 3 spring. The triangular groove 28 is arranged on the top of the receiving plate 10. A circular groove is opened on the surface of the limit block 22. 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.

[0025] The limiting device includes a hollow block 30, a locking 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 locking block 31 is slidably installed on the inner wall of the hollow block 30, and the No. 4 spring 32 is arranged between the locking block 31 and the hollow block 30. The locking block 31 is reset by the arranged No. 4 spring 32.

[0026] 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 installed on the inner wall of the hollow block 2 33, and the bottom of the moving block 35 is slidably installed on the inner wall of the hollow block 2 33. The No. 5 spring 36 is arranged between the insert block 34 and the moving block 35, and the insert block 34 is reset by the arranged No. 5 spring 36.

[0027] The limiting device also includes a T-shaped block 37 and a latch 38. The T-shaped block 37 is slidably installed on the inner wall of the hollow block 2 33. The latch 38 slides through the inner and outer walls of the hollow block 2 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 latch 34.

[0028] A No. 6 spring is arranged between the T-shaped block 37 and the hollow block 2 33, and the No. 6 spring is used to drive the T-shaped block 37 to reset. A No. 7 spring is arranged between the latch 38 and the hollow block 2 33, and the No. 7 spring is used to drive the latch 38 to reset.

[0029] 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. 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.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that 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 No. 2 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 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 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 slide block (112); 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 inserted 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 inserted 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 further comprises 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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