A draw-out high-low voltage switch cabinet

Abstract

The application discloses an extracted high-low voltage switch cabinet and relates to the technical field of electrical equipment. The cabinet body is internally provided with an extraction device, a supporting device and a limiting device. The inner wall of the cabinet body is provided with a sliding groove, 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 inside of the cabinet body is provided with an extraction device, a supporting device and a limiting device. The circular rod cooperates with a No.1 spring, a piston block, a fixed cylinder and hydraulic oil to effectively reduce collision, prevent the damage of the receiving plate to the cabinet body, reduce noise, improve the use experience, prolong the service life, and ensure the use safety. The trigger block moves cooperatively with a pressure rod, a sliding block, a sliding groove block, a No.2 spring, a heart-shaped groove, a connecting rod, a buckle and a trigger block to prevent the receiving plate from being completely separated by accident, ensure the use safety, and replace the previous push-pull extraction mode with the pressure rod, the No.2 spring, the sliding groove block, the connecting rod, the buckle, the trigger block and the pressure rod to improve the use speed of the handcart circuit breaker.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrical equipment, in particular to a pull-out high-low voltage switch cabinet. BACKGROUND

[0002] The pull-out high-low voltage switch cabinet is a device used for electrical control and protection in the power system, which has maintainability and flexibility. The main part of the switch cabinet adopts a drawer type structure, so that the components can be easily pulled out and replaced, simplifying the maintenance process and reducing downtime.

[0003] The patent with patent number CN210517564U relates to the technical field of electrical equipment. The patent provides a pull-out high-low voltage switch cabinet with compact structure, reasonable design, convenient use and easy maintenance. The high-low voltage switch cabinet comprises a cabinet body, a handcart room and a handcart circuit breaker. The middle part of the cabinet body is provided with a handcart room for placing the handcart circuit breaker, and the handcart circuit breaker is connected with the cabinet body through sliding mode. The front side of the handcart room is provided with a support plate, and the lower end of the support plate is hinged with the cabinet body through a pin shaft. The upper end of the support plate is provided with a handle bolt in the middle, and the support plate is fixedly connected with the cabinet body through the handle bolt. One side of the support plate is provided with two tracks, and the tracks are connected with the support plate through welding mode. The patent improves the pull-out high-low voltage switch cabinet, which has the advantages of compact structure, reasonable design, convenient use and easy maintenance, thereby effectively solving the problems and deficiencies of the patent.

[0004] In the above-mentioned patent, the pull-out high-low voltage switch cabinet is improved, which has the advantages of compact structure, reasonable design, convenient use and easy maintenance, thereby effectively solving the problems and deficiencies of the patent. However, the current measuring equipment has the following problems: when the handcart circuit breaker is pulled out, it needs to be pulled back after operation. Directly pulling back may cause the handcart circuit breaker to collide with the cabinet body, causing wear of the handcart circuit breaker. When the handcart circuit breaker is used, the previous push-pull type pulling method makes the use process cumbersome and increases downtime. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a pull-out high-low voltage switch cabinet to solve the problems in the background art.

[0006] To achieve the above object, the application is implemented by the following technical scheme: a pull-out high-low voltage switch cabinet, comprising a cabinet body, a sliding groove is arranged on the inner wall of the cabinet body, a movable door is arranged on the front side of the cabinet body, universal wheels are arranged on the bottom of the cabinet body, and a pulling device, a supporting device and a limiting device are arranged in the cabinet body; wherein the pulling device comprises a receiving plate, a handcart circuit breaker, a trigger block, a hollow block, a sliding block, a pressing rod, a second spring, a sliding rod, a sliding groove block, a connecting rod and a buckle, the receiving plate is slidingly installed on the top of the sliding groove, the handcart circuit breaker is fixedly installed on the top of the receiving plate, the trigger block is fixedly installed on the bottom of the receiving plate, the hollow block is fixedly installed on the right inner wall of the cabinet body, the sliding block is slidingly installed in the inner wall of the hollow block, the pressing rod is fixedly installed on the front side of the sliding block and slidingly penetrates the hollow block, a heart-shaped groove is formed in the top of the sliding block, the second spring is arranged between the sliding block and the hollow block, the sliding rod is rotatably installed on the top of the hollow block and is in contact with the heart-shaped groove, the sliding groove block is fixedly installed on the bottom of the sliding block, one side of the connecting rod is slidingly installed in the inner wall of the sliding groove block, the other side of the connecting rod is rotatably installed in the inner wall of the hollow block, and the buckle is fixedly installed on the front side of the connecting rod; the receiving plate is pushed to make the receiving plate contact and cooperate with the sliding block, the sliding rod, the heart-shaped groove, the second spring, the sliding groove block, the connecting rod, the buckle, the trigger block and the pressing rod to pop out the receiving plate, the receiving plate is moved to drive the handcart circuit breaker to move out for operation, and the pulling mode of the previous push-pull type is replaced.

[0007] According to the above technical scheme, the pulling device further comprises 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 slidingly penetrates 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 and is in contact with the fixed cylinder, the inside of the fixed cylinder is provided with hydraulic oil, a slot is formed in the front side of the piston block, the piston block extrudes the hydraulic oil in the fixed cylinder to make the hydraulic oil enter the front side of the piston block through the slot, because the slot is small, the return flow speed of the hydraulic oil is limited when the piston block resets, that is, the reset speed of the piston block is limited, and the slower the reset speed of the piston block is, the slower the reset speed of the first spring is.

[0008] According to the above technical scheme, the supporting device comprises a supporting frame, a rotating rod, a fixed sleeve and an anti-skid pad, the supporting frame is rotatably installed on the inner wall of the cabinet body, a first torsional spring is arranged between the supporting frame and the cabinet body, the rotating rod is rotatably installed on the inner wall of the receiving plate, the fixed sleeve is rotatably installed on the outer wall of the rotating rod, the anti-skid pad is fixedly installed on the bottom of the fixed sleeve, a butt joint groove is formed in the right side of the supporting frame, the supporting frame temporarily supports the receiving plate by contacting the receiving plate when the receiving plate moves, and the rotating rod moves to cooperate with the triangular recess, the fixed sleeve, the rotating rod, the anti-skid pad, the limiting block, the round knob, the L-shaped block, the third spring and the circular groove to limit the rotating rod.

[0009] According to the above technical scheme, the supporting device further comprises a limiting block, an L-shaped block, a round knob, a No. 3 spring and a triangular groove, the limiting block is fixedly installed on the outer wall of the rotating rod, the L-shaped block is slidingly installed on the inner wall of the fixed sleeve, the round knob 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, and the triangular groove is arranged on the top of the receiving plate. A circular groove is formed in the surface of the limiting block. When the supporting device needs to be retracted, the L-shaped block is pressed down and the No. 3 spring is compressed at the same time. At this time, the fixed sleeve is moved to drive the rotating rod to move to the initial position, so that the supporting device can be retracted.

[0010] According to the above technical scheme, the limiting device comprises a hollow block one, a clamping block and a No. 4 spring, the hollow block one is fixedly penetrated through the inner and outer walls of the cabinet, the clamping block is slidingly installed on the inner wall of the hollow block one, and the No. 4 spring is arranged between the clamping block and the hollow block one. The movement of the receiving plate and the clamping block makes the clamping block move to the inside of the hollow block one, and the No. 4 spring is compressed at the same time. Through the movement of the triangular groove, when the triangular groove and the clamping block are at the same horizontal position, the No. 4 spring is released and drives the clamping block to be inserted into the triangular groove.

[0011] According to the above technical scheme, the limiting device further comprises a hollow block two, an inserting block, a moving block and a No. 5 spring, the hollow block two is fixedly penetrated through the inner and outer walls of the cabinet, the inserting block is slidingly installed on the inner wall of the hollow block two, the bottom of the moving block is slidingly installed on the inner wall of the hollow block two, and the No. 5 spring is arranged between the inserting block and the moving block. When the supporting frame rotates and the inclined surface of the inserting block is contacted, the inserting block moves to the inside of the hollow block two and the No. 5 spring is compressed at the same time. When the butt joint groove and the inserting block are at the same horizontal position, the No. 5 spring is released and drives the inserting block to be inserted into the butt joint groove.

[0012] According to the above technical scheme, the limiting device further comprises a T-shaped block and a plug, the T-shaped block is slidingly installed on the inner wall of the hollow block two, the plug is slidingly penetrated through the inner and outer walls of the hollow block two, and the rear side of the moving block is fixedly installed on the front side of the T-shaped block. If the restriction needs to be removed, the plug is pressed and the inclined surface of the T-shaped block is contacted, so that the T-shaped block moves to the right. The movement of the T-shaped block drives the moving block to move, and the movement of the moving block stretches the No. 5 spring. When the No. 5 spring is stretched to a certain extent, the inserting block is driven to move, so that the inserting block is separated from the butt joint groove. At this time, the supporting frame loses the restriction of the inserting block.

[0013] According to the above technical scheme, the T-shaped block and the hollow block two are provided with a No. 6 spring, and the plug and the hollow block two are provided with a No. 7 spring. The No. 6 spring drives the T-shaped block to reset, and the No. 7 spring drives the plug to reset.

[0014] The present application provides a kind of to draw out high-low voltage switch cabinet. It has the following beneficial effects:

[0015] (1) The invention, through the setting of the pulling device, the rearward movement of the receiving plate contacts and cooperates with the No. 1 spring, the piston block, the fixed cylinder and the hydraulic oil to play a buffering role, which can effectively reduce the collision, prevent the receiving plate from damaging the cabinet body, reduce noise and improve the use experience, thereby prolonging the service life. The movement of the receiving plate drives the trigger block to move and cooperate with the pressure rod, the sliding block, the sliding groove block, the No. 2 spring, the heart-shaped groove, the connecting rod, the buckle and the trigger block to limit the movement of the receiving plate, preventing the receiving plate from accidentally falling off and ensuring safety in use. When the receiving plate needs to be pulled out, the receiving plate is pushed backward to make the receiving plate contact and cooperate with the sliding block, the sliding rod, the heart-shaped groove, the No. 2 spring, the sliding groove block, the connecting rod, the buckle, the trigger block and the pressure rod to pop out the receiving plate. The movement of the receiving plate drives the handcart 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 supporting device, the movement of the receiving plate contacts the supporting frame to temporarily support the receiving plate, and the rotating rod moves to cooperate with the triangular groove, the fixed sleeve, the rotating rod, the anti-skid pad, the limiting block, the round knob, the L-shaped block, the No. 3 spring and the circular groove to limit the rotating rod, preventing the rotating rod from tilting. At this time, the supporting device will support the front side of the receiving plate, preventing the receiving plate from shaking or tilting when 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 is pressed down while the No. 3 spring is compressed. At this time, the fixed sleeve is moved to drive the rotating rod to move to the initial position, and the supporting device can be retracted. When not in use, the supporting device is retracted, making it easier to store and reducing the occupied space, making it easier to organize.

[0017] (3) The invention, through the setting of the limiting device, the movement of the receiving plate contacts and cooperates with the clamping block, the hollow block I, the No. 4 spring, the triangular groove and the clamping block to make the receiving plate unable to continue moving forward, limiting the movement distance of the receiving plate and preventing the movement distance of the receiving plate from being unlimited, which may lead to operation errors. When the supporting frame rotates, it contacts and cooperates with the inclined surface of the plug block, the hollow block II, the No. 5 spring and the butt joint groove to limit the movement of the supporting frame, preventing the supporting frame from rotating due to external force and causing the receiving plate to be unstable. If the limitation needs to be removed, the plug pin is pressed to contact the inclined surface of the T-shaped block, and the moving block, the No. 5 spring and the plug block are moved to make the supporting frame lose the limitation of the plug block. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The figure is a schematic diagram of the overall structure of the invention;

[0019] Figure 2 The figure is a schematic diagram of the internal structure of the cabinet body of the invention;

[0020] Figure 3 The figure is a schematic diagram of the local cross-section of the pulling device of the invention;

[0021] Figure 4 Position structure diagram of connecting rod and sliding groove block of the application;

[0022] Figure 5 Position structure diagram of connecting rod and sliding groove block of the application;

[0023] Figure 6 Position structure diagram of connecting rod and sliding groove block of the application;

[0024] Figure 7 Position structure diagram of connecting rod and sliding groove block of the application;

[0025] Figure 8 Position structure diagram of connecting rod and sliding groove block of the application;

[0026] In the figure: 1, cabinet body; 10, receiving plate; 11, handcart circuit breaker; 12, fixed cylinder; 13, round rod; 14, No. 1 spring; 15, piston block; 16, trigger block; 17, hollow block; 18, sliding block; 19, pressing rod; 110, No. 2 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 knob; 26, No. 3 spring; 27, non-slip pad; 28, triangular recess; 30, hollow block one; 31, clamping block; 32, No. 4 spring; 33, hollow block two; 34, insertion block; 35, moving block; 36, No. 5 spring; 37, T-shaped block; 38, bolt. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0028] Please refer to Figures 1-5One embodiment of the present application is: a high-low voltage switch cabinet, comprising a cabinet body 1, the inner wall of the cabinet body 1 is provided with a sliding groove, the front side of the cabinet body 1 is provided with a movable door, the bottom of the cabinet body 1 is provided with a universal wheel, the inside of the cabinet body 1 is provided with a pulling device, the pulling device comprises a receiving plate 10, a handcart circuit breaker 11, a trigger block 16, a hollow block 17, a sliding block 18, a pressure rod 19, a second spring 110, a sliding rod 111, a sliding groove block 112, a connecting rod 113 and a buckle block 114, the receiving plate 10 is slidingly installed at the top of the sliding groove, the handcart circuit breaker 11 is fixedly installed at the top of the receiving plate 10, the trigger block 16 is fixedly installed at the bottom of the receiving plate 10, the hollow block 17 is fixedly installed at the right side of the inner wall of the cabinet body 1, the sliding block 18 is slidingly installed in the inner wall of the hollow block 17, the pressure rod 19 is fixedly installed at the front side of the sliding block 18, the pressure rod 19 slidingly penetrates the hollow block 17, a heart-shaped groove is formed in the top of the sliding block 18, the second spring 110 is arranged between the sliding block 18 and the hollow block 17, the sliding block 18 is reset by the second spring 110, the sliding rod 111 is rotatably installed at the top of the hollow block 17, the sliding rod 111 is in contact with the heart-shaped groove, the sliding groove block 112 is fixedly installed at the bottom of the sliding block 18, one side of the connecting rod 113 is slidingly installed in the inner wall of the sliding groove block 112, the other side of the connecting rod 113 is rotatably installed in the inner wall of the hollow block 17, and the buckle block 114 is fixedly installed at the front side of the connecting rod 113. The use speed of the handcart circuit breaker 11 is improved by replacing the previous push-pull extraction mode.

[0029] The pulling 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 installed in the inner wall of the cabinet body 1, the round rod 13 slidingly penetrates 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 reset by the first spring 14, the piston block 15 is fixedly installed at the rear side of the round rod 13, the piston block 15 is in contact with the fixed cylinder 12, the inside of the fixed cylinder 12 is provided with hydraulic oil, a slot hole is formed in the front side of the piston block 15, which plays a buffering role in touching the receiving plate 10, can effectively reduce the collision, prevent the receiving plate 10 from damaging the cabinet body 1, can also reduce the noise, improve the use experience, and prolong the service life.

[0030] When the present embodiment works, by moving the receiving plate 10 backward, when the receiving plate 10 contacts with the round rod 13, the round rod 13 moves backward and compresses the first spring 14, the round rod 13 moves while driving the piston block 15 to move, the piston block 15 will extrude 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 hole, because the slot hole is small, so when the piston block 15 resets, the return speed of the hydraulic oil is limited, 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 first spring 14 is, that is, the touch of the receiving plate 10 plays a buffering role, which can effectively reduce the collision and prevent the receiving plate 10 from damaging the cabinet 1, while also reducing noise and improving user experience, thereby prolonging 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 with the pressure rod 19, the pressure rod 19 moves backward, the pressure rod 19 moves backward to drive the sliding block 18 to move, the sliding block 18 moves while driving the sliding groove block 112 to move and compress the second force spring 110, at this time the sliding rod 111 moves along the heart-shaped groove until it is limited by the heart-shaped groove, when the sliding groove front side of the sliding groove block 112 contacts with the connecting rod 113, the connecting rod 113 rotates upward, the connecting rod 113 drives the buckle 114 to move, the buckle 114 moves and contacts with the trigger block 16, at this time the connecting rod 113 limits the trigger block 16 so that the trigger block 16 cannot move forward, that is, the movement of the receiving plate 10 is limited, preventing the receiving plate 10 from accidentally falling off completely, ensuring the safety in use, when the receiving plate 10 needs to be pulled out, the receiving plate 10 is pushed backward to contact with the pressure rod 19, the pressure rod 19 drives the sliding block 18 to move backward, the sliding block 18 moves so that the sliding rod 111 moves along the heart-shaped groove to the initial position, at this time the second spring 110 is released to drive the sliding block 18 to move, at the same time the sliding block 18 drives the sliding groove block 112 to move, the sliding groove block 112 moves so that the sliding groove rear side contacts with the connecting rod 113 to make the connecting rod 113 rotate downward, the connecting rod 113 rotates downward to drive the buckle 114 to disengage from the trigger block 16, at this time the sliding block 18 moves to drive the pressure rod 19 to move, the pressure rod 19 moves to pop out the receiving plate 10, the receiving plate 10 moves to drive the handcart circuit breaker 11 to move out for operation, replacing the previous push-pull extraction method, improving the use speed of the handcart circuit breaker 11.

[0031] Please refer to Figures 1-8On the basis of the above-mentioned embodiments, in another embodiment of the present application, the inside of the cabinet 1 is provided with a supporting device and a limiting device, the supporting device comprises a supporting frame 20, a rotating rod 21, a fixing sleeve 23 and an anti-skid pad 27, the supporting frame 20 is rotatably installed on the inner wall of the cabinet 1, a first torsion spring is arranged between the supporting frame 20 and the cabinet 1, the first torsion spring drives the supporting frame 20 to reset, 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, the anti-skid pad 27 is fixedly installed on the bottom of the fixing sleeve 23, a butt joint groove is formed in the right side of the supporting frame 20, which prevents the receiving plate 10 from shaking or tilting when it is fully opened or bears heavy objects, thereby improving the safety and comfort of use.

[0032] The supporting device further comprises a limiting block 22, an L-shaped block 24, a round knob 25, a third spring 26 and a triangular recess 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 fixing sleeve 23, the round knob 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 fixing sleeve 23, the third spring drives the L-shaped block 24 to reset, and the triangular recess 28 is arranged on the top of the receiving plate 10, a circular groove is formed in the surface of the limiting block 22, the supporting device is easier to store when not in use, reduces the occupied space, and makes the arrangement more convenient.

[0033] The limiting device comprises a hollow block one 30, a clamping block 31 and a fourth spring 32, the hollow block one 30 is fixedly penetrated through the inner and outer walls of the cabinet 1, the clamping block 31 is slidably installed on the inner wall of the hollow block one 30, and the fourth spring 32 is arranged between the clamping block 31 and the hollow block one 30.

[0034] The limiting device further comprises a hollow block two 33, an insertion block 34, a moving block 35 and a fifth spring 36, the hollow block two 33 is fixedly penetrated through the inner and outer walls of the cabinet 1, the insertion block 34 is slidably installed on the inner wall of the hollow block two 33, the moving block 35 is slidably installed on the inner wall of the hollow block two 33 at the bottom, and the fifth spring 36 is arranged between the insertion block 34 and the moving block 35.

[0035] The limiting device further comprises a T-shaped block 37 and a bolt 38, the T-shaped block 37 is slidably installed on the inner wall of the hollow block two 33, the bolt 38 is slidably penetrated through the inner and outer walls of the hollow block two 33, and the rear side of the moving block 35 is fixedly installed on the front side of the T-shaped block 37, so that the supporting 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, which drives the T-shaped block 37 to reset, and a seventh spring is arranged between the bolt 38 and the hollow block two 33, which drives the bolt 38 to reset.

[0037] When the present embodiment works, the support frame 20 is rotated downward until the support plate 10 is supported by the contact of the support plate 10 moving out and the support frame 20, which plays a temporary supporting role in the moving out of the support plate 10. The moving out of the support plate 10 drives the rotating rod 21 to move and the triangular groove 28 to move. At this time, the fixed sleeve 23 is moved downward, the fixed sleeve 23 drives the rotating rod 21 to rotate downward and drives the anti-skid pad 27 to move. When the vertical distance is reached, the inclined surface of the limiting block 22 will contact the knob 25, which drives the L-shaped block 24 to move downward and compresses the third spring 26. When the circular groove is at the same level as the knob 25, the third spring 26 is released and drives the L-shaped block 24 to reset. The L-shaped block 24 resets and drives the knob 25 to insert into the circular groove. At this time, the rotating rod 21 is limited, preventing the rotating rod 21 from tilting. At this time, the support device supports the front side of the support plate 10, preventing the support plate 10 from shaking or tilting when fully opened or bearing heavy objects, thereby improving the safety and comfort of use. When the support device needs to be retracted, the L-shaped block 24 is pressed down while the third spring 26 is compressed. At this time, the rotating rod 21 is moved to the initial position by moving the fixed sleeve 23, and the support device can be retracted. When not in use, the support device is retracted, making it easier to store and reducing the occupied space, making it easier to organize.

[0038] The contact of the moving of the support plate 10 and the clamping block 31 drives the clamping block 31 to move to the inside of the hollow block one 30, while compressing the fourth spring 32. Through the movement of the triangular groove 28, when the triangular groove 28 is at the same level as the clamping block 31, the fourth spring 32 is released and drives the clamping block 31 to insert into the triangular groove 28. At this time, the support plate 10 cannot continue to move forward, limiting the moving distance of the support plate 10, preventing the moving distance of the support plate 10 from being unlimited, which may cause operational errors. When the support frame 20 rotates and contacts the inclined surface of the plug-in block 34, the plug-in block 34 moves to the inside of the hollow block two 33 while compressing the fifth spring 36. When the butt joint groove is at the same level as the plug-in block 34, the fifth spring 36 is released and drives the plug-in block 34 to insert into the butt joint groove. At this time, the movement of the support frame 20 is limited by the plug-in block 34, preventing the support frame 20 from rotating due to external force, which may cause the support plate 10 to be unstable. If the limitation needs to be removed, the plug-in block 34 is moved by pressing the plug-in block 38 and the inclined surface of the T-shaped block 37, which drives the T-shaped block 37 to move to the right. The movement of the T-shaped block 37 drives the moving block 35 to move, which stretches the fifth spring 36. When the fifth spring 36 is stretched to a certain extent, it drives the plug-in block 34 to move, making the plug-in block 34 disengage from the butt joint groove. At this time, the support frame 20 loses the limitation of the plug-in block 34.

[0039] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A withdrawable high and low voltage switchgear, comprising a cabinet (1), characterized in that: The inner wall of the cabinet (1) is provided with a sliding groove, the front side of the cabinet (1) is provided with a movable door, the bottom of the cabinet (1) is provided with casters, and the interior of the cabinet (1) is provided with a pull-out device, a support device and a limiting device. The pull-out device includes a receiving 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 sliding rod (111), a sliding groove block (112), a connecting rod (113), and a fastener (114). The receiving plate (10) is slidably installed on the top of the sliding groove. The handcart 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 right side of the inner wall of the cabinet (1). The slider (18) is slidably installed on the inner wall of the hollow block (17). The pressure rod (19) is fixedly installed on the right side of the cabinet (1). 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 second spring (110) is set between the slider (18) and the hollow block (17), the slide rod (111) is rotatably installed on the top of the hollow block (17), the slide rod (111) is in contact with 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), the other side of the connecting rod (113) is rotatably installed on the inner wall of the hollow block (17), and the buckle (114) is fixedly installed on the front side of the connecting rod (113); The support device includes a support frame (20), a rotating rod (21), a fixing sleeve (23), and an anti-slip pad (27). The support frame (20) is rotatably installed on the inner wall of the cabinet (1). A torsion spring is provided between the support frame (20) and the cabinet (1). The rotating rod (21) is rotatably installed on the inner wall of the support plate (10). The fixing 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 fixing sleeve (23). A docking groove is provided on the right side of the support frame (20). The limiting device includes a hollow block (30), a locking block (31), and a fourth spring (32). The hollow block (30) is fixedly inserted 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). The fourth spring (32) is located between the locking block (31) and the hollow block (30).

2. The withdrawable high and low voltage switchgear according to claim 1, characterized in that: The pulling device also 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 (1). The round rod (13) slides through the inner and outer walls of the fixed cylinder (12). The first spring (14) is located between the fixed cylinder (12) and the round rod (13). 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). The fixed cylinder (12) is filled with hydraulic oil. The piston block (15) has a slot on its front side.

3. A withdrawable high and low voltage switchgear according to claim 1, characterized in that: The support device also includes a limiting block (22), an L-shaped block (24), a round button (25), a No. 3 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 No. 3 spring (26) is located between the L-shaped block (24) and the fixed sleeve (23). The triangular groove (28) is located on the top of the receiving plate (10). The surface of the limiting block (22) is provided with a round groove.

4. A withdrawable high and low voltage switchgear according to claim 1, characterized in that: The limiting device also includes a hollow block two (33), an insert block (34), a moving block (35) and a No. 5 spring (36). The hollow block two (33) is fixedly inserted 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 two (33). The bottom of the moving block (35) is slidably installed on the inner wall of the hollow block two (33). The No. 5 spring (36) is located between the insert block (34) and the moving block (35).

5. A withdrawable high and low voltage switchgear according to claim 4, characterized in that: The limiting device also 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) slides through 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).

6. A withdrawable high and low voltage switchgear according to claim 5, characterized in that: A No. 6 spring is provided between the T-shaped block (37) and the hollow block two (33), and a No. 7 spring is provided between the pin (38) and the hollow block two (33).

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