A lifting mechanism for a side-mounted removable high-voltage switch cabinet

Abstract

The present invention provides a lifting mechanism for a side-mounted removable high-voltage switch cabinet, which relates to the technical field of switch cabinets and comprises: a driving unit, a lifting unit, an auxiliary force-bearing unit and a multifunctional unit; the lifting unit is installed on the driving unit; the auxiliary force-bearing units are provided with four groups, and the four groups of auxiliary force-bearing units are installed on the lifting unit; the support unit is installed on the top of the lifting unit; the multifunctional units are provided with two groups, and the two groups of multifunctional units are installed on the front and rear sides of the support unit, the two groups of the multifunctional units are used to clamp a trolley, and the two groups of multifunctional units are also used to assist the trolley in moving out; the present invention, on the one hand, saves the resistance when the trolley moves, which is beneficial to the removal and installation of the trolley, and on the other hand, reduces the wear on the bottom of the trolley; solves the problem that the resistance cannot be reduced when the trolley is installed and removed, which increases the difficulty of installing and removing the trolley; at the same time, the bottom of the trolley is prone to wear when the trolley is installed and removed.

Description

Technical Field

[0001] The invention belongs to the technical field of switch cabinets, and more specifically, particularly relates to a lifting mechanism of a side-mounted removable high-voltage switch cabinet. Background Art

[0002] Side-mounted removable high-voltage switchgear is a type of high-voltage switchgear whose circuit breakers can be removed from the cabinet for maintenance. At the same time, the cabinet is designed to be installed on the side, which is convenient for maintenance and replacement of equipment. In order to facilitate the movement of the trolley, an automatic lifting mechanism is usually installed on the trolley.

[0003] For example, the patent with application number: CN202311063637.0 discloses an electric and manual lifting mechanism for a side-mounted removable high-voltage switchgear; it includes a drive motor, a manual crank, a screw rod connected to the manual crank, and a telescopic rod slidably connected to the screw rod, and the screw rod can rotate by the drive of the drive motor or the manual crank; wherein the telescopic rod is connected to the lifting assembly, and the telescopic rod is extended and retracted by rotating the screw rod, so that the angle between the first connecting rod and the second connecting rod changes, so that the lifting frame performs a lifting action; the interaction of the telescopic rod, the screw rod, the double scissor fork and the lifting frame is adopted to realize a convenient, simple and stable circuit breaker trolley lifting mechanism.

[0004] Based on the above, the lifting mechanism on the current switch cabinet still has the following problems:

[0005] 1. Usually, there is a lack of auxiliary force-bearing structure, which causes the connecting rod to be always under force after the trolley is raised, reducing the service life of the connecting rod. In severe cases, it is easy to cause deformation of the connecting rod;

[0006] 2. The resistance during installation and removal of the trolley cannot be reduced, which increases the difficulty of installation and removal of the trolley; at the same time, the bottom of the trolley is prone to wear during installation and removal. Summary of the invention

[0007] The disclosed embodiment relates to a lifting mechanism of a side-mounted removable high-voltage switchgear, which comprises a driving unit, a lifting unit, an auxiliary force-bearing unit, a supporting unit and a multifunctional unit; the mechanism plays an auxiliary supporting role, reduces the force on the lifting unit, avoids the lifting unit being always in a high-load condition, and is beneficial to improving the service life of the lifting unit; on the one hand, it saves the resistance during the movement of the trolley, which is beneficial to the removal and installation of the trolley, and on the other hand, reduces the wear on the bottom of the trolley; it solves the problem that the connecting rod is always in a force state after the trolley is raised and the resistance cannot be reduced during the installation and removal of the trolley.

[0008] In a first aspect of the present disclosure, a lifting mechanism for a side-mounted removable high-voltage switchgear is provided, comprising: a driving unit, a lifting unit, an auxiliary force-bearing unit, a supporting unit and a multifunctional unit; the lifting unit is mounted on the driving unit; the auxiliary force-bearing units are provided with four groups, and the four groups of auxiliary force-bearing units are mounted on the lifting unit, and the four groups of auxiliary force-bearing units are used to improve the stability of the lifting unit;

[0009] The support unit is installed on the top of the lifting unit, and the support unit is used to support the trolley; the multifunctional unit is provided with two groups, and the two groups of multifunctional units are installed on the front and rear sides of the support unit, and the two groups of multifunctional units are used to clamp the trolley, and the two groups of multifunctional units are also used to assist the trolley to move out;

[0010] The driving unit includes: a switch cabinet connecting base plate, a dovetail slide rail, and a circular guide vertical rod; four bolt holes are provided on the switch cabinet connecting base plate; there are two dovetail slide rails, and the two dovetail slide rails are fixedly installed on the top of the switch cabinet connecting base plate; there are two circular guide vertical rods, and the two circular guide vertical rods are fixedly installed on the top of the switch cabinet connecting base plate, and two arc-shaped force-bearing grooves are respectively provided on the two circular guide vertical rods.

[0011] In at least some embodiments, the drive unit further includes: a double-headed motor and a drive screw; the double-headed motor is fixedly mounted on the top of the switch cabinet connecting base plate; there are two drive screws in total, and the two drive screws are fixedly mounted on the output shaft of the double-headed motor, and the thread directions of the two drive screws are opposite.

[0012] In at least some embodiments, the lifting unit includes: a supporting slider and a rectangular connecting rod; there are two supporting sliders in total, and the two supporting sliders are slidably installed on two dovetail slide rails, and the two supporting sliders are threadedly connected to two driving screws; there are four rectangular connecting rods in total, and the four rectangular connecting rods are rotatably installed on the two supporting sliders.

[0013] In at least some embodiments, the lifting unit further includes: a lifting support block and balls; the lifting support block is rotatably mounted on four rectangular connecting rods, and two circular guide vertical rods are inserted into the lifting support block; there are two groups of balls, and the two groups of balls are rotatably mounted inside the lifting support block; the outer walls of the two groups of balls are in contact with the two circular guide vertical rods, and the number of balls in each group is four.

[0014] In at least some embodiments, the auxiliary force-bearing unit includes: a U-shaped mounting frame and an auxiliary force-bearing rod; the U-shaped mounting frame is fixedly mounted on a lifting support block; the auxiliary force-bearing rod is slidably mounted on the U-shaped mounting frame and the lifting support block, and the inner end of the auxiliary force-bearing rod is provided with a rounded corner, and the inner end of the auxiliary force-bearing rod is in contact with a circular guide vertical rod.

[0015] In at least some embodiments, the auxiliary force-bearing unit further includes: a limiting ring and a coil spring; the limiting ring is fixedly mounted on the outside of the auxiliary force-bearing rod; the coil spring is mounted on the outside of the auxiliary force-bearing rod, and the coil spring is located between the U-shaped mounting frame and the limiting ring.

[0016] In at least some embodiments, the support unit includes: a lifting support seat, a circular guide block and an extrusion plate; the lifting support seat is fixedly installed on the top of the lifting support block; there are two circular guide blocks, and the two circular guide blocks are fixedly installed on the bottom of the lifting support seat; the extrusion plate is slidably installed on the outside of the two circular guide blocks, and four arc-shaped protrusions A are provided on the bottom of the extrusion plate.

[0017] In at least some embodiments, the support unit further includes: a positioning retaining ring and a solid sphere; there are two positioning retaining rings, which are fixedly mounted on the outside of the two circular guide blocks, and the tops of the two positioning retaining rings are in contact with the extrusion plate; there are two rows of solid spheres, which are slidably mounted on the inside of the lifting support seat, and the number of solid spheres in each row is four.

[0018] In at least some embodiments, the multifunctional unit includes: an L-shaped mounting frame, a clamping handle and a rectangular clamping block; the L-shaped mounting frame is fixedly mounted on a lifting support seat; the clamping handle is threadedly connected to the L-shaped mounting frame; the rectangular clamping block is rotatably mounted on the clamping handle, and the bottom of the rectangular clamping block is in contact with the lifting support seat.

[0019] In at least some embodiments, the multifunctional unit further includes: an extrusion bracket and a limit stop plate; the extrusion bracket is rotatably mounted on the outside of the clamping handle, and two arc-shaped protrusions B are provided on the extrusion bracket, and the two arc-shaped protrusions B are in contact with the two arc-shaped protrusions A; there are two limit stop plates in total, and the two limit stop plates are fixedly mounted on the outside of the clamping handle, and the inner sides of the two limit stop plates are in contact with the extrusion bracket.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the present invention, when the double-headed motor drives the two driving screw rods to rotate forward or reverse, the two supporting slide blocks can move outward or inward at the same time. When the two supporting slide blocks move outward at the same time, the lifting support block drives the trolley to move downward. When the two supporting slide blocks move inward at the same time, the lifting support block drives the trolley to move upward. The lifting support block has a guiding effect, so that the lifting support block has a higher precision when moving up and down. The arrangement of the two sets of balls reduces the wear of the two circular guide vertical rods, which is beneficial to increasing the service life.

[0022] 2. According to the present invention, when the lifting support block drives the trolley to rise, the four auxiliary force-bearing rods can be inserted into the four arc-shaped force-bearing grooves under the elastic force of the four coil springs, thereby playing an auxiliary supporting role, reducing the force on the lifting unit, avoiding the lifting unit from always being under a high-load condition, and being beneficial to increasing the service life of the lifting unit; when the lifting support block drives the trolley to descend, the two circular guide vertical rods can squeeze the four auxiliary force-bearing rods to move outward, so that the four auxiliary force-bearing rods are automatically separated from the four arc-shaped force-bearing grooves.

[0023] 3. According to the present invention, when the staff rotates the two clamping handles clockwise, the two clamping handles drive the two rectangular clamping blocks to move inward, thereby clamping the trolley on the lifting support seat, making the trolley more secure after installation; when the staff rotates the two clamping handles counterclockwise, the two clamping handles drive the two rectangular clamping blocks to move outward, thereby facilitating the installation and disassembly of the trolley; at the same time, when the two clamping handles move outward, the four arc-shaped protrusions B can squeeze the four arc-shaped protrusions A, thereby moving the squeezing plate upward, and when the squeezing plate moves upward, it can push the two rows of solid spheres to move upward, thereby making the two rows of solid spheres contact with the bottom of the trolley; on the one hand, it saves the resistance when the trolley moves, which is beneficial to the removal and installation of the trolley, and on the other hand, it reduces the wear on the bottom of the trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0025] The drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention.

[0026] In the attached picture:

[0027] Figure 1 A three-dimensional structural schematic diagram of the present invention is shown.

[0028] Figure 2 The present invention is shown Figure 1 Schematic diagram of the main viewing angle structure.

[0029] Figure 3 The schematic diagram of the structure of the driving unit of the present invention is shown.

[0030] Figure 4 The schematic diagram of the structure of the lifting unit of the present invention is shown.

[0031] Figure 5 The present invention is shown Figure 2 Schematic diagram of the cross-section structure in the AA direction.

[0032] Figure 6 The present invention is shown Figure 5 Schematic diagram of the local enlarged structure of area B in the middle.

[0033] Figure 7 The schematic diagram of the structure of the support unit of the present invention is shown.

[0034] Figure 8 The present invention is shown Figure 7 Schematic diagram of the cross-section structure in the CC direction.

[0035] Fig. 9 The present invention is shown Figure 8 Schematic diagram of the local enlarged structure of area D in the middle.

[0036] Fig.10 The schematic diagram of the structure of the multifunctional unit of the present invention is shown.

[0037] Fig.11 The present invention is shown Figure 1 Schematic diagram of the local enlarged structure of area E in the middle.

[0038] Fig.12 The schematic diagram of the structure of the present invention and the handcart is shown.

[0039] List of reference numerals:

[0040] 1. Drive unit; 101. Switch cabinet connection bottom plate; 102. Dovetail slide rail; 103. Circular guide vertical rod; 1031. Arc-shaped force groove; 104. Double-head motor; 105. Drive screw;

[0041] 2. Lifting unit; 201. Supporting slide block; 202. Rectangular connecting rod; 203. Lifting support block; 204. Ball bearing;

[0042] 3. Auxiliary force-bearing unit; 301. U-shaped installation frame; 302. Auxiliary force-bearing rod; 303. Limiting ring; 304. Coil spring;

[0043] 4. Support unit; 401. Lifting support seat; 402. Circular guide block; 403. Extrusion plate; 4031. Arc-shaped protrusion A; 404. Positioning retaining ring; 405. Solid sphere;

[0044] 5. Multifunctional unit; 501. L-shaped mounting frame; 502. Clamping handle; 503. Rectangular clamping block; 504. Extrusion bracket; 5041. Arc-shaped protrusion B; 505. Limit stop plate. DETAILED DESCRIPTION

[0045] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0046] Example: Please refer to Figures 1 to 12 As shown: The present invention provides a lifting mechanism for a side-mounted removable high-voltage switchgear, comprising: a driving unit 1, a lifting unit 2, an auxiliary force-bearing unit 3, a supporting unit 4 and a multifunctional unit 5; the lifting unit 2 is installed on the driving unit 1; there are four groups of auxiliary force-bearing units 3, and the four groups of auxiliary force-bearing units 3 are installed on the lifting unit 2, and the four groups of auxiliary force-bearing units 3 are used to improve the stability of the lifting unit 2; the supporting unit 4 is installed on the top of the lifting unit 2, and the supporting unit 4 is used to support a trolley; there are two groups of multifunctional units 5, and the two groups of multifunctional units 5 are installed on the front and rear sides of the supporting unit 4, the two groups of multifunctional units 5 are used to clamp the trolley, and the two groups of multifunctional units 5 are also used to assist the trolley in moving out.

[0047] In the present disclosure, Figure 3 , Figure 4 and Figure 6 As shown, the drive unit 1 includes: a switch cabinet connecting base plate 101, a dovetail slide rail 102, and a circular guide vertical rod 103; four bolt holes are provided on the switch cabinet connecting base plate 101; there are two dovetail slide rails 102, and the two dovetail slide rails 102 are fixedly installed on the top of the switch cabinet connecting base plate 101; there are two circular guide vertical rods 103, and the two circular guide vertical rods 103 are fixedly installed on the top of the switch cabinet connecting base plate 101, and two arc-shaped force-bearing grooves 1031 are respectively provided on the two circular guide vertical rods 103; the drive unit 1 also includes: a double-headed motor 104 and a driving screw 105; the double-headed motor 104 is fixedly installed on the top of the switch cabinet connecting base plate 101; there are two driving screw rods 105, and the two driving screw rods 105 are fixedly installed on the output shaft of the double-headed motor 104, and the thread directions of the two driving screw rods 105 are opposite;

[0048] The lifting unit 2 includes: a supporting slider 201 and a rectangular connecting rod 202; there are two supporting sliders 201, and the two supporting sliders 201 are slidably installed on the two dovetail slide rails 102, and the two supporting sliders 201 are threadedly connected with the two driving screw rods 105; there are four rectangular connecting rods 202, and the four rectangular connecting rods 202 are rotatably installed on the two supporting sliders 201; the lifting unit 2 also includes: a lifting support block 203 and balls 204; the lifting support block 203 is rotatably installed on the four rectangular connecting rods 202, and the two circular guide vertical rods 103 are inserted into the lifting support block 203; there are two groups of balls 204, and the two groups of balls 204 are rotatably installed inside the lifting support block 203; the outer walls of the two groups of balls 204 are in contact with the two circular guide vertical rods 103, and the number of balls 204 in each group is four;

[0049] Its specific function is as follows: because the two supporting sliders 201 are slidably installed on the two dovetail slide rails 102, and the two supporting sliders 201 are threadedly connected with the two driving screw rods 105, when the double-headed motor 104 drives the two driving screw rods 105 to rotate forward or reverse, the two supporting sliders 201 can move outward or inward at the same time. When the two supporting sliders 201 move outward at the same time, the lifting support block 203 drives the trolley to move downward, and when the two supporting sliders 201 move inward at the same time, the lifting support block 203 drives the trolley to move upward; and because the two groups of ball bearings 204 are rotatably installed inside the lifting support block 203, and the outer walls of the two groups of ball bearings 204 are in contact with the two circular guide vertical rods 103, the lifting support block 203 is guided, so that the lifting support block 203 has higher precision when moving up and down. The setting of the two groups of ball bearings 204 reduces the wear of the two circular guide vertical rods 103, which is beneficial to improving the service life.

[0050] In the present disclosure, Figure 6 As shown, the auxiliary force-bearing unit 3 includes: a U-shaped mounting frame 301 and an auxiliary force-bearing rod 302; the U-shaped mounting frame 301 is fixedly mounted on the lifting support block 203; the auxiliary force-bearing rod 302 is slidably mounted on the U-shaped mounting frame 301 and the lifting support block 203, and the inner end of the auxiliary force-bearing rod 302 is provided with a rounded corner, and the inner end of the auxiliary force-bearing rod 302 is in contact with the circular guide vertical rod 103; the auxiliary force-bearing unit 3 also includes: a limiting ring 303 and a coil spring 304; the limiting ring 303 is fixedly mounted on the outside of the auxiliary force-bearing rod 302; the coil spring 304 is mounted on the outside of the auxiliary force-bearing rod 302, and the coil spring 304 is located between the U-shaped mounting frame 301 and the limiting ring 303;

[0051] Its specific function is as follows: because two arc-shaped force-bearing grooves 1031 are respectively provided on the two circular guide vertical rods 103, and the inner ends of the four auxiliary force-bearing rods 302 are provided with rounded corners, and the four coil springs 304 are located between the four U-shaped mounting frames 301 and the four limiting circular rings 303, when the lifting support block 203 drives the trolley to rise, the four auxiliary force-bearing rods 302 can be inserted into the four arc-shaped force-bearing grooves 1031 under the elastic force of the four coil springs 304, playing an auxiliary supporting role, reducing the force on the lifting unit 2, avoiding the lifting unit 2 from always being in a high-load condition, and being beneficial to improving the service life of the lifting unit 2; when the lifting support block 203 drives the trolley to descend, the two circular guide vertical rods 103 can squeeze the four auxiliary force-bearing rods 302 to move outward, so that the four auxiliary force-bearing rods 302 are automatically separated from the four arc-shaped force-bearing grooves 1031.

[0052] In the present disclosure, Figures 7 to 11As shown, the support unit 4 includes: a lifting support seat 401, a circular guide block 402 and an extrusion plate 403; the lifting support seat 401 is fixedly installed on the top of the lifting support block 203; there are two circular guide blocks 402, and the two circular guide blocks 402 are fixedly installed on the bottom of the lifting support seat 401; the extrusion plate 403 is slidably installed on the outside of the two circular guide blocks 402, and the bottom of the extrusion plate 403 is provided with four arc-shaped protrusions A4031; the support unit 4 also includes: a positioning retaining ring 404 and a solid sphere 405; there are two positioning retaining rings 404, and the two positioning retaining rings 404 are fixedly installed on the outside of the two circular guide blocks 402, and the tops of the two positioning retaining rings 404 are in contact with the extrusion plate 403; there are two rows of solid spheres 405, and the two rows of solid spheres 405 are slidably installed in the inside of the lifting support seat 401, and the number of solid spheres 405 in each row is four;

[0053] The multifunctional unit 5 comprises: an L-shaped mounting frame 501, a clamping handle 502 and a rectangular clamping block 503; the L-shaped mounting frame 501 is fixedly mounted on the lifting support seat 401; the clamping handle 502 is threadedly connected to the L-shaped mounting frame 501; the rectangular clamping block 503 is rotatably mounted on the clamping handle 502, and the bottom of the rectangular clamping block 503 is in contact with the lifting support seat 401; the multifunctional unit 5 also comprises: an extrusion bracket 504 and a limit stop plate 505; the extrusion bracket 504 is rotatably mounted on the outside of the clamping handle 502, and two arc-shaped protrusions B5041 are provided on the extrusion bracket 504, and the two arc-shaped protrusions B5041 are in contact with two arc-shaped protrusions A4031; there are two limit stop plates 505, and the two limit stop plates 505 are fixedly mounted on the outside of the clamping handle 502, and the inner sides of the two limit stop plates 505 are in contact with the extrusion bracket 504;

[0054] Its specific function is: because the two clamping handles 502 are threadedly connected to the two L-shaped mounting frames 501, and the two rectangular clamping blocks 503 are rotatably mounted on the two clamping handles 502, and the bottoms of the two rectangular clamping blocks 503 are in contact with the lifting support seat 401, when the staff rotates the two clamping handles 502 clockwise, the two clamping handles 502 drive the two rectangular clamping blocks 503 to move inward, clamping the trolley on the lifting support seat 401, making the trolley more secure after installation; and because the two rows of solid spheres 405 are slidably mounted inside the lifting support seat 401, and the bottom of the extrusion plate 403 is provided with four arc-shaped protrusions A4031, and the two extrusion supports Two arc-shaped protrusions B5041 are respectively arranged on the frame 504. When the staff rotates the two clamping handles 502 counterclockwise, the two clamping handles 502 drive the two rectangular clamping blocks 503 to move outward, so as to facilitate the installation and disassembly of the trolley. At the same time, when the two clamping handles 502 move outward, the four arc-shaped protrusions B5041 can squeeze the four arc-shaped protrusions A4031, so that the squeezing plate 403 moves upward. When the squeezing plate 403 moves upward, it can push the two rows of solid spheres 405 to move upward, so that the two rows of solid spheres 405 contact with the bottom of the trolley. On the one hand, it saves the resistance when the trolley moves, which is beneficial to the removal and installation of the trolley. On the other hand, it reduces the wear on the bottom of the trolley.

[0055] The specific usage and function of this embodiment are as follows:

[0056] When the present invention is used, the staff first installs the switch cabinet connecting base plate 101 on the high-voltage switch cabinet by means of bolts, and then places the trolley on the lifting support seat 401, and then rotates the two clamping handles 502 clockwise. When the staff rotates the two clamping handles 502 clockwise, the two clamping handles 502 drive the two rectangular clamping blocks 503 to move inward, clamping the trolley on the lifting support seat 401, making the trolley more secure after installation; when the trolley needs to be raised, the staff starts the double-headed motor 104, and when the double-headed motor 104 drives the two driving screw rods 105 to rotate forward, the two support slides The blocks 201 can move inward at the same time. When the two support sliders 201 move inward at the same time, the lifting support block 203 drives the trolley to move upward. The setting of the two sets of balls 204 reduces the wear of the two circular guide vertical rods 103, which is beneficial to improving the service life. When the lifting support block 203 drives the trolley to rise, the four auxiliary force-bearing rods 302 can be inserted into the four arc-shaped force-bearing grooves 1031 under the elastic force of the four spiral springs 304, playing an auxiliary supporting role, reducing the force of the lifting unit 2, avoiding the lifting unit 2 from always being in a high-load state, and is beneficial to improving the service life of the lifting unit 2.

[0057] When the trolley needs to be removed, the staff starts the double-headed motor 104. When the double-headed motor 104 drives the two driving screws 105 to reverse, the two supporting slide blocks 201 can move outward at the same time. When the two supporting slide blocks 201 move outward at the same time, the lifting support block 203 drives the trolley to move downward; when the lifting support block 203 drives the trolley to descend, the two circular guide vertical rods 103 can squeeze the four auxiliary force-bearing rods 302 to move outward, so that the four auxiliary force-bearing rods 302 are automatically separated from the four arc-shaped force-bearing grooves 1031; then the staff rotates the two clamping handles 502 counterclockwise, and when the staff rotates counterclockwise, the two clamping handles 502 are rotated counterclockwise. When the two clamping handles 502 are rotated clockwise, the two clamping handles 502 drive the two rectangular clamping blocks 503 to move outward, which is convenient for the installation and disassembly of the trolley; at the same time, when the two clamping handles 502 move outward, the four arc-shaped protrusions B5041 can squeeze the four arc-shaped protrusions A4031, so that the squeezing plate 403 moves upward, and when the squeezing plate 403 moves upward, it can push the two rows of solid spheres 405 to move upward, so that the two rows of solid spheres 405 contact the bottom of the trolley; on the one hand, it saves the resistance when the trolley moves, which is beneficial to the removal and installation of the trolley, and on the other hand, it reduces the wear on the bottom of the trolley.

[0058] In this article, there are a few points to note:

[0059] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0060] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0061] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A lifting mechanism for a side-mounted removable high-voltage switchgear, comprising: A driving unit (1), a lifting unit (2), an auxiliary force-bearing unit (3), a supporting unit (4) and a multifunctional unit (5); characterized in that the lifting unit (2) is mounted on the driving unit (1); a total of four groups of the auxiliary force-bearing units (3) are provided, and the four groups of the auxiliary force-bearing units (3) are mounted on the lifting unit (2); the four groups of the auxiliary force-bearing units (3) are used to improve the stability of the lifting unit (2); The support unit (4) is installed on the top of the lifting unit (2), and the support unit (4) is used to support the trolley; the multifunctional units (5) are provided with two groups, and the two groups of multifunctional units (5) are installed on the front and rear sides of the support unit (4), and the two groups of multifunctional units (5) are used to clamp the trolley, and the two groups of multifunctional units (5) are also used to assist the trolley to be moved out; The drive unit (1) comprises: a switch cabinet connecting base plate (101), a dovetail slide rail (102), and a circular guide vertical rod (103); four bolt holes are provided on the switch cabinet connecting base plate (101); two dovetail slide rails (102) are provided, and the two dovetail slide rails (102) are fixedly mounted on the top of the switch cabinet connecting base plate (101); two circular guide vertical rods (103) are provided, and the two circular guide vertical rods (103) are fixedly mounted on the top of the switch cabinet connecting base plate (101), and two arc-shaped force-bearing grooves (1031) are respectively provided on the two circular guide vertical rods (103); The lifting unit (2) comprises: a lifting support block (203); The support unit (4) comprises: a lifting support seat (401), a circular guide block (402) and an extrusion plate (403); the lifting support seat (401) is fixedly mounted on the top of the lifting support block (203); two circular guide blocks (402) are provided, and the two circular guide blocks (402) are fixedly mounted on the bottom of the lifting support seat (401); the extrusion plate (403) is slidably mounted on the outside of the two circular guide blocks (402), and the bottom of the extrusion plate (403) is provided with four arc-shaped protrusions A (403) 31); the support unit (4) further comprises: a positioning retaining ring (404) and a solid sphere (405); the positioning retaining ring (404) is provided with two in total, and the two positioning retaining rings (404) are fixedly mounted on the outside of the two circular guide blocks (402), and the tops of the two positioning retaining rings (404) are in contact with the extrusion plate (403); the solid spheres (405) are provided in two rows in total, and the two rows of solid spheres (405) are slidably mounted inside the lifting support seat (401), and the number of solid spheres (405) in each row is four; The multifunctional unit (5) comprises: an L-shaped mounting frame (501), a clamping handle (502) and an extrusion bracket (504); the L-shaped mounting frame (501) is fixedly mounted on the lifting support seat (401); the clamping handle (502) is threadedly connected to the L-shaped mounting frame (501); the extrusion bracket (504) is rotatably mounted on the outside of the clamping handle (502), and two arc-shaped protrusions B (5041) are provided on the extrusion bracket (504), and the two arc-shaped protrusions B (5041) are in contact with the two arc-shaped protrusions A (4031).

2. The lifting mechanism of a side-mounted removable high-voltage switchgear according to claim 1 is characterized in that: The drive unit (1) further comprises: a double-headed motor (104) and a drive screw (105); the double-headed motor (104) is fixedly mounted on the top of the switch cabinet connection base plate (101); a total of two drive screws (105) are provided, and the two drive screws (105) are fixedly mounted on the output shaft of the double-headed motor (104), and the thread directions of the two drive screws (105) are opposite.

3. The lifting mechanism of the side-mounted removable high-voltage switchgear according to claim 2 is characterized in that: The lifting unit (2) further comprises: a supporting slider (201) and a rectangular connecting rod (202); two supporting sliders (201) are provided in total, and the two supporting sliders (201) are slidably mounted on the two dovetail slide rails (102), and the two supporting sliders (201) are threadedly connected to the two driving screw rods (105); and four rectangular connecting rods (202) are provided in total, and the four rectangular connecting rods (202) are rotatably mounted on the two supporting sliders (201).

4. The lifting mechanism of the side-mounted removable high-voltage switchgear according to claim 3 is characterized in that: The lifting unit (2) further comprises: balls (204); the lifting support block (203) is rotatably mounted on the four rectangular connecting rods (202), and the two circular guide vertical rods (103) are inserted into the lifting support block (203); the balls (204) are provided in two groups, and the two groups of balls (204) are rotatably mounted inside the lifting support block (203); the outer walls of the two groups of balls (204) are in contact with the two circular guide vertical rods (103), and the number of balls (204) in each group is four.

5. The lifting mechanism of the side-mounted removable high-voltage switchgear according to claim 4 is characterized in that: The auxiliary force-bearing unit (3) comprises: a U-shaped installation frame (301) and an auxiliary force-bearing rod (302); the U-shaped installation frame (301) is fixedly installed on the lifting support block (203); the auxiliary force-bearing rod (302) is slidably installed on the U-shaped installation frame (301) and the lifting support block (203), and the inner end of the auxiliary force-bearing rod (302) is provided with a rounded corner, and the inner end of the auxiliary force-bearing rod (302) is in contact with the circular guide vertical rod (103).

6. The lifting mechanism of the side-mounted removable high-voltage switchgear according to claim 5 is characterized in that: The auxiliary force-bearing unit (3) further comprises: a limiting ring (303) and a coil spring (304); the limiting ring (303) is fixedly mounted on the outside of the auxiliary force-bearing rod (302); the coil spring (304) is mounted on the outside of the auxiliary force-bearing rod (302), and the coil spring (304) is located between the U-shaped mounting frame (301) and the limiting ring (303).

7. The lifting mechanism of a side-mounted removable high-voltage switch cabinet according to claim 1, characterized in that: The multifunctional unit (5) further comprises: a rectangular clamping block (503); the rectangular clamping block (503) is rotatably mounted on the clamping handle (502), and the bottom of the rectangular clamping block (503) is in contact with the lifting support seat (401).

8. The lifting mechanism of the side-mounted removable high-voltage switchgear according to claim 7 is characterized in that: The multifunctional unit (5) further comprises: a limit stop plate (505); two limit stop plates (505) are provided in total, and the two limit stop plates (505) are fixedly mounted on the outside of the clamping handle (502), and the inner sides of the two limit stop plates (505) are in contact with the extrusion bracket (504).

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