Switch cabinet external electric operation device with calibration function and method thereof

Abstract

The invention discloses a switch cabinet external electric operation device with a calibration function and a method thereof, and belongs to the technical field of electric operation devices.The switch cabinet external electric operation device comprises a scissor lift and a loading guide assembly, the loading guide assembly comprises a loading assembly and a guide assembly, the loading assembly is installed on the top of a lifting platform of the scissor lift, and the guide assembly is installed on the top of the lifting platform of the scissor lift. The guiding assembly is arranged on the loading assembly and connected with the rear side of a base of the scissor lift. A lifting platform of the scissor lift is provided with a positioning calibration driving assembly used for positioning a positioning structure on the switch cabinet, the top of the lifting platform of the scissor lift is provided with a traction driving assembly, and the traction driving assembly is connected with the loading assembly. By means of the mode, accurate adjustment of the height of the switch cabinet matched with the scissor-type elevator is achieved, and meanwhile the circuit breaker handcart is automatically pushed into the switch cabinet installation cavity.

Description

Technical Field

[0001] The present invention relates to the technical field of electric operating devices, and in particular to an external electric operating device of a switch cabinet with a calibration function and a method thereof. Background Art

[0002] The circuit breaker trolley transfer trolley is an external operating device of the switch cabinet used to transfer the circuit breaker trolley.

[0003] The prior art discloses a switch cabinet with an installation cavity for installing a circuit breaker trolley. The housing of the switch cabinet is provided with two pin holes for positioning a circuit breaker trolley transfer cart. The pin holes are provided with slots. However, the transfer cart cannot adjust its height, which is inconvenient for transporting the circuit breaker trolley.

[0004] Among many existing technologies, Chinese patent application CN213948494U discloses a transfer trolley for circuit breaker trolleys, which includes a mobile frame, and universal wheels are respectively provided on both sides of one end of the bottom of the mobile frame, and fixed wheels are respectively provided on both sides of the other end of the bottom of the mobile frame; a fixed bracket is provided directly above the mobile frame, and adjusting bolts are respectively welded at the four corners of the fixed bracket, and the adjusting bolts pass downward through a fixed block fixed on the mobile frame and are connected by threads to at least one locking nut; two ends of one side of the fixed bracket are respectively rotatably connected to the rotating shaft, and a movable bracket is welded on the rotating shafts at both ends of the fixed bracket, and an L-shaped limit baffle is welded along the width direction to the bottom of one end of the movable bracket connected to the fixed bracket.

[0005] However, there may be slight deviations in the height adjustment of the patent application, which makes it impossible for the transfer trolley to be accurately positioned with the pin holes and slots on the switch cabinet. At the same time, the circuit breaker trolley needs to be installed manually into the installation cavity of the switch cabinet, and the circuit breaker trolley is generally heavy, making it inconvenient to use.

[0006] Based on this, the present invention designs an external electric operating device of a switch cabinet with a calibration function and a method thereof to solve the above-mentioned problem. Summary of the invention

[0007] In view of the above-mentioned shortcomings of the prior art, the present invention provides an external electric operating device for a switch cabinet with a calibration function and a method thereof.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] An external electric operating device for a switch cabinet with a calibration function, comprising a scissor lift and a loading guide assembly, wherein the loading guide assembly comprises a loading assembly and a guiding assembly, wherein the loading assembly is mounted on the top of a lifting platform of the scissor lift, the guiding assembly is arranged on the loading assembly, and the guiding assembly is connected to the rear side of a base of the scissor lift;

[0010] The lifting platform of the scissor-type lift is equipped with a positioning and calibration drive component for positioning the positioning structure on the switch cabinet, and the top of the lifting platform of the scissor-type lift is equipped with a traction drive component, which is connected to the loading component.

[0011] Furthermore, the loading assembly includes a loading plate, a lifting column and a slide groove. The loading plate is fixedly connected to the lifting platform of the scissors-type lift through the lifting column. There are two slide grooves that are symmetrically penetrated along the front and rear directions and are opened on the top of the loading plate. The slide groove is connected to the traction drive assembly, and the guide assembly is arranged on the loading plate.

[0012] Furthermore, the guide assembly includes a guide plate, a first pulley groove, a trapezoidal frame, a trapezoidal frame and a second pulley groove, the guide plate has two groups and is symmetrically fixedly installed on the left and right sides of the top of the loading plate, the first pulley groove has two groups and is symmetrically opened on the left and right sides of the top of the loading plate; the trapezoidal frame has two groups and is symmetrically detachably installed on the rear side of the base of the scissor lift, and the upper end surface of the trapezoidal frame is opened with a second pulley groove used in conjunction with the first pulley groove;

[0013] The distances from the guide plate, the first pulley groove to the center of the loading plate decrease sequentially.

[0014] Furthermore, the positioning and calibration driving assembly includes a driving assembly and a positioning and calibration assembly. The driving assembly is installed on the lifting platform of the scissors-type lift. There are two groups of positioning and calibration assemblies and both are connected to the driving assembly.

[0015] Furthermore, the driving assembly includes a first motor, a first pulley assembly, a rotating rod and a second pulley assembly. The first motor is fixedly installed on the inner top of the lifting platform of the scissors-type lift. There are two rotating rods. The two rotating rods are symmetrically arranged on the left and right and are rotatably connected to the side walls of the lifting platform of the scissors-type lift. The two rotating rods are transmission connected through the second pulley assembly, and the output end of the first motor is transmission connected to the rotating rod on the right side through the first pulley assembly. The two sets of positioning and calibration assemblies are respectively connected to the two rotating rods.

[0016] Furthermore, the positioning calibration assembly includes a center correction module, a positioning column, a protrusion, a locking sleeve and a spring;

[0017] The rear side wall of the fixed end of the center correction module is fixedly connected to the end of the rotating rod, the positioning column is fixedly installed on the front side of the movable end of the center correction module, the protrusion is fixedly installed on the front end of the outer wall of the positioning column, the locking sleeve is slidably connected to the outer wall of the positioning column, one end of the spring is fixedly connected to the movable end of the center correction module, and the other end of the spring is fixedly connected to the locking sleeve.

[0018] The positioning calibration component also includes a displacement detection sensor and a marking block. The displacement detection sensor is fixedly installed on the front side of the fixed end of the center correction module, and the marking block used for cooperation with the displacement detection sensor is fixedly installed on the rear side of the movable end of the center correction module.

[0019] Furthermore, the traction drive assembly includes a second motor, a screw rod, a connecting rod, a slider, a guide groove, a traction block and a push-pull electromagnet; the second motor is fixedly installed on the top of the lifting platform of the scissors-type lift, the output end of the second motor is fixedly connected to one end of the screw rod, and the other end of the screw rod is rotatably connected to the top of the scissors-type lift through a bearing seat, the lower middle part of the connecting rod is threadedly connected to the screw rod, the slider has two and is symmetrically fixedly installed on the left and right sides of the upper end of the connecting rod, a guide groove is provided at the upper end of the slider, the traction block is slidingly connected to the inner wall of the guide groove in the upper and lower directions, a push-pull electromagnet is fixedly installed on the bottom of the slider, the output end of the push-pull electromagnet passes through the slider and is fixedly connected to the bottom of the traction block, and the two sliders are slidingly connected to the two slide grooves respectively.

[0020] In order to better achieve the purpose of the present invention, the present invention also provides an operating method of an external electric operating device of a switch cabinet, comprising the following steps:

[0021] Step 1: Start the scissor lift to the set height that matches the installation cavity of the light cabinet;

[0022] Step 2: Move the scissor lift so that the positioning column and the protrusion are respectively inserted into the pin hole and the notch on the switch cabinet, and at the same time, the locking sleeve contacts the switch cabinet and slides on the positioning column and compresses the spring until the protrusion is completely inserted into the inner end of the switch cabinet. When the height adjustment calibration of the scissor lift is completed, start the first motor, and the first motor drives the right rotating rod to rotate through the first pulley assembly. The two rotating rods are transmitted and rotate synchronously through the second pulley assembly, and the rotating rod drives the positioning column and the protrusion to rotate. When the protrusion rotates to be misaligned with the notch, the protrusion and the locking sleeve lock the switch cabinet.

[0023] Step 3: Detect the position change of the marking block at the active end of the center correction module by using a displacement detection sensor to obtain the height lifting deviation data of the scissor lift, and the scissor lift calibrates the lifting height according to the data;

[0024] Step 4, the push-pull electromagnet is energized, and the output end of the push-pull electromagnet drives the traction block to slide out from the inner end of the guide groove, and the second motor is started. The second motor drives the screw rod to rotate, and the screw rod drives the connecting rod to move threadedly thereon, and the connecting rod drives the slider to slide in the slide groove. When the side wall of the traction block contacts the circuit breaker trolley and drives the action pulley of the circuit breaker trolley to slide in the first pulley groove until the circuit breaker trolley is pushed into the installation cavity of the opening cabinet.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] When the present invention is in use, the height of the circuit breaker trolley on the loading assembly is adjusted by the scissor-type lift, the circuit breaker trolley on the loading assembly is pushed to move by the traction drive assembly, the positioning structure on the electrical cabinet is positioned by the positioning and calibration drive assembly, and the lifting height of the scissor-type lift is calibrated at the same time; the guide assembly is used to facilitate the transportation of the circuit breaker trolley on the loading assembly and guide the movement direction of the circuit breaker trolley. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 The present invention is a three-dimensional diagram of a switch cabinet external electric operating device with a calibration function Figure 1 ;

[0029] Figure 2 It is a front view of an external electric operating device of a switch cabinet with a calibration function according to the present invention;

[0030] Figure 3 It is a left view of an external electric operating device of a switch cabinet with a calibration function according to the present invention;

[0031] Figure 4 A three-dimensional device for installing a circuit breaker trolley for an external electric operating device of a switch cabinet with a calibration function according to the present invention Figure 2 ;

[0032] Figure 5 It is a partial stereogram of the present invention;

[0033] Figure 6 For along Figure 2 AA direction cross-sectional view;

[0034] Figure 7 A three-dimensional diagram of a positioning and calibration assembly of the present invention;

[0035] Figure 8 is a perspective view of a traction drive assembly of the present invention;

[0036] Fig. 9 It is a plan view of the light-opening cabinet of the present invention.

[0037] The numbers in the figure represent:

[0038] 1. Scissor lift 2. Loading guide assembly 21. Loading assembly 211. Loading plate 212. Lifting column 213. Slide 22. Guide assembly 221. Guide plate 222. First pulley groove 223. Trapezoidal frame 224. Second pulley groove 3. Positioning calibration drive assembly 31. Drive assembly 311. First motor 312. First pulley assembly 313. Rotating rod 314. Second pulley assembly 32. Positioning calibration assembly 321. Center correction module 322. Positioning column 323. Bump 324. Locking sleeve 325. Spring 326. Displacement detection sensor 327. Marking block 4. Traction drive assembly 41. Second motor 42. Screw rod 43. Connecting rod 44. Slider 45. Guide groove 46. Traction block 47. Push-pull electromagnet 5. Circuit breaker trolley. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are 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.

[0040] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0041] Embodiment 1

[0042] In some embodiments, please refer to the attached instructions. Figure 1-9 , an external electric operating device of a switch cabinet with a calibration function, comprising a scissor lift 1 and a loading guide assembly 2, the loading guide assembly 2 comprising a loading assembly 21 and a guiding assembly 22, the loading assembly 21 being mounted on the top of the lifting platform of the scissor lift 1, the guiding assembly 22 being arranged on the loading assembly 21, and the guiding assembly 22 being connected to the rear side of the base of the scissor lift 1;

[0043] The lifting platform of the scissors-type lift 1 is equipped with a positioning calibration drive component 3 for positioning the positioning structure on the switch cabinet. The top of the lifting platform of the scissors-type lift 1 is equipped with a traction drive component 4, which is connected to the loading component 21.

[0044] When the present invention is in use, the height of the circuit breaker trolley 5 on the loading assembly 21 is adjusted by the scissor-type lift 1, the circuit breaker trolley 5 on the loading assembly 21 is pushed to move by the traction drive assembly 4, and the positioning structure on the electrical cabinet is positioned and the lifting height of the scissor-type lift 1 is calibrated by the positioning and calibration drive assembly 3; the guide assembly 22 is used to facilitate the transportation of the circuit breaker trolley 5 on the loading assembly 21 and guide the movement direction of the circuit breaker trolley 5.

[0045] Embodiment 2

[0046] In some embodiments, Figure 1-9 As shown, as a preferred embodiment of the present invention, the loading assembly 21 includes a loading plate 211, a lifting column 212 and a slide groove 213. The loading plate 211 is fixedly connected to the lifting platform of the scissors-type lift 1 through the lifting column 212. There are two slide grooves 213 that are symmetrically penetrated along the front and rear directions and are opened on the top of the loading plate 211. The slide groove 213 is connected to the traction drive assembly 4, and the guide assembly 22 is arranged on the loading plate 211.

[0047] The guide assembly 22 includes a guide plate 221, a first pulley groove 222, a trapezoidal frame 223, a trapezoidal frame 223 and a second pulley groove 224. The guide plate 221 has two groups and is symmetrically fixedly installed on the left and right sides of the top of the loading plate 211. The first pulley groove 222 has two groups and is symmetrically opened on the left and right sides of the top of the loading plate 211; the trapezoidal frame 223 has two groups and is symmetrically and detachably installed on the rear side of the base of the scissors-type lift 1. The upper end surface of the trapezoidal frame 223 is provided with a second pulley groove 224 used in conjunction with the first pulley groove 222.

[0048] The trapezoidal frame 223 is fixedly connected to the rear side of the base of the scissor lift 1 by bolts.

[0049] The distances from the guide plate 221 and the first pulley groove 222 to the center of the loading plate 211 decrease sequentially.

[0050] When the present invention is used, the pulleys on the left and right side walls of the circuit breaker trolley 5 are respectively used in cooperation with the two groups of first pulley grooves 222 and second pulley grooves 224 for limited sliding, and when the lifting platform of the scissor-type lift 1 is lowered to the lowest point, the first pulley groove 222 is connected to the second pulley groove 224, and the circuit breaker trolley 5 can slide along the first pulley groove 222 and the second pulley groove 224, thereby facilitating the transportation of the circuit breaker trolley 5.

[0051] The positioning and calibration driving assembly 3 comprises a driving assembly 31 and a positioning and calibration assembly 32 . The driving assembly 31 is installed on the lifting platform of the scissor lift 1 . There are two groups of positioning and calibration assemblies 32 , and both are connected to the driving assembly 31 .

[0052] The driving assembly 31 includes a first motor 311, a first pulley assembly 312, a rotating rod 313 and a second pulley assembly 314. The first motor 311 is fixedly installed on the inner top of the lifting platform of the scissors-type lift 1. There are two rotating rods 313. The two rotating rods 313 are symmetrically arranged on the left and right and are rotatably connected to the side wall of the lifting platform of the scissors-type lift 1. The two rotating rods 313 are connected by the second pulley assembly 314. The output end of the first motor 311 is connected to the rotating rod 313 on the right side by the first pulley assembly 312. The two sets of positioning and calibration assemblies 32 are respectively connected to the two rotating rods 313.

[0053] When the present invention is used, the first pulley assembly 312 and the second pulley assembly 314 are both mature products sold on the market, which are composed of two synchronous wheels and a transmission belt.

[0054] The positioning and calibration assembly 32 includes a center correction module 321, a positioning column 322, a protrusion 323, a locking sleeve 324 and a spring 325;

[0055] The rear side wall of the fixed end of the center correction module 321 is fixedly connected to the end of the rotating rod 313, the positioning column 322 is fixedly installed on the front side of the movable end of the center correction module 321, the protrusion 323 is fixedly installed on the front end of the outer wall of the positioning column 322, the locking sleeve 324 is slidably connected to the outer wall of the positioning column 322, one end of the spring 325 is fixedly connected to the movable end of the center correction module 321, and the other end of the spring 325 is fixedly connected to the locking sleeve 324.

[0056] The positioning calibration component 32 also includes a displacement detection sensor 326 and a marking block 327. The displacement detection sensor 326 is fixedly installed on the front side of the fixed end of the center correction module 321, and the marking block 327 used for detection by the displacement detection sensor 326 is fixedly installed on the rear side of the movable end of the center correction module 321.

[0057] When the present invention is used, the center correction module 321 is a mature product sold on the market, which consists of a fixed end and a movable end.

[0058] When the present invention is used, two pin holes are provided on the opening cabinet for positioning the trolley 5 used to transport the circuit breaker in the prior art, and the pin holes are provided with notches; the positioning column 322 and the protrusion 323 of the present invention are plugged in with the pin holes and notches of the opening cabinet in the prior art;

[0059] In the present invention, the height of the circuit breaker trolley 5 on the loading plate 211 can be adjusted by the scissor-type lift 1 to facilitate the transportation of the circuit breaker trolley 5. There is a slight deviation in the lifting height of the scissor-type lift 1, which makes it impossible for the positioning column 322 and the protrusion 323 thereon to accurately match the pin hole on the switch cabinet. In the present invention, the positioning column 322 is installed on the movable end of the center correction module 321, and the floating function of the movable end of the center correction module 321 is used to allow the positioning column 322 to be inserted into the pin hole. At the same time, the displacement detection sensor 326 detects the position change of the marking block 327 at the movable end of the center correction module 321 to obtain the height lifting deviation data of the scissor-type lift 1. The scissor-type lift 1 calibrates the lifting height according to the data, thereby realizing the precise adjustment of the height of the scissor-type lift 1 to adapt the pin hole of the switch cabinet.

[0060] The scissor lift 1 is pushed so that the positioning column 322 and the protrusion 323 are respectively inserted into the pin hole and the slot on the switch cabinet, and the locking sleeve 324 contacts the switch cabinet and slides on the positioning column 322 and compresses the spring 325 until the protrusion 323 is completely inserted into the inner end of the switch cabinet. When the height adjustment calibration of the scissor lift 1 is completed, by starting the first motor 311, the first motor 311 drives the right rotating rod 313 to rotate through the first pulley assembly 312, and the two rotating rods 313 are transmitted and rotated synchronously through the second pulley assembly 314, and the rotating rod 313 drives the positioning column 322 and the protrusion 323 to rotate. When the protrusion 323 rotates to be misaligned with the slot, the protrusion 323 and the locking sleeve 324 lock the switch cabinet, thereby realizing the locking between the scissor lift 1 and the opening cabinet.

[0061] The traction drive assembly 4 includes a second motor 41, a screw rod 42, a connecting rod 43, a slider 44, a guide groove 45, a traction block 46 and a push-pull electromagnet 47; the second motor 41 is fixedly installed on the top of the lifting platform of the scissors-type lift 1, the output end of the second motor 41 is fixedly connected to one end of the screw rod 42, the other end of the screw rod 42 is rotatably connected to the top of the scissors-type lift 1 through a bearing seat, the lower middle part of the connecting rod 43 is threadedly connected to the screw rod 42, there are two sliders 44 and they are symmetrically fixedly installed on the left and right sides of the upper end of the connecting rod 43, the upper end of the slider 44 is provided with a guide groove 45, the traction block 46 is slidingly connected to the inner wall of the guide groove 45 in the upper and lower directions, a push-pull electromagnet 47 is fixedly installed at the bottom of the slider 44, the output end of the push-pull electromagnet 47 passes through the slider 44 and is fixedly connected to the bottom of the traction block 46, and the two sliders 44 are slidingly connected to the two slide grooves 213 respectively.

[0062] When the present invention is used, when it is necessary to push the circuit breaker trolley 5 on the loading plate 211 into the installation cavity of the opening cabinet, the push-pull electromagnet 47 is energized, and the output end of the push-pull electromagnet 47 drives the traction block 46 to slide out from the inner end of the guide groove 45, and the second motor 41 is started. The second motor 41 drives the screw rod 42 to rotate, and the screw rod 42 drives the connecting rod 43 to move threadedly thereon, and the connecting rod 43 drives the slider 44 to slide in the slide groove 213. When the side wall of the traction block 46 contacts the circuit breaker trolley 5 and drives the action pulley of the circuit breaker trolley 5 to slide in the first pulley groove 222 until the circuit breaker trolley 5 is pushed into the installation cavity of the opening cabinet, the circuit breaker trolley 5 is automatically sent into the installation cavity of the opening cabinet.

[0063] Embodiment 3

[0064] In some embodiments, Figure 1-9 As shown, as a preferred embodiment of the present invention, the present invention also provides an operating method of an external electric operating device of a switch cabinet, comprising the following steps:

[0065] Step 1: Start the scissor lift 1 to a set height that matches the installation cavity of the light cabinet;

[0066] Step 2, move the scissor lift 1 so that the positioning column 322 and the protrusion 323 are respectively inserted into the pin hole and the notch on the switch cabinet, and at the same time, the locking sleeve 324 contacts the switch cabinet and slides on the positioning column 322 and compresses the spring 325 until the protrusion 323 is completely inserted into the inner end of the switch cabinet. When the height adjustment calibration of the scissor lift 1 is completed, by starting the first motor 311, the first motor 311 drives the right rotating rod 313 to rotate through the first pulley assembly 312, and the two rotating rods 313 are transmitted and rotated synchronously through the second pulley assembly 314, and the rotating rod 313 drives the positioning column 322 and the protrusion 323 to rotate. When the protrusion 323 rotates to be misaligned with the notch, the protrusion 323 and the locking sleeve 324 lock the switch cabinet;

[0067] Step 3: Detect the position change of the marking block 327 at the movable end of the center correction module 321 by the displacement detection sensor 326 to obtain the height lifting deviation data of the scissor lift 1, and the scissor lift 1 calibrates the lifting height according to the data;

[0068] Step four, the push-pull electromagnet 47 is energized, and the output end of the push-pull electromagnet 47 drives the traction block 46 to slide out from the inner end of the guide groove 45, and the second motor 41 is started. The second motor 41 drives the screw rod 42 to rotate, and the screw rod 42 drives the connecting rod 43 to move threadedly thereon, and the connecting rod 43 drives the slider 44 to slide in the slide groove 213. When the side wall of the traction block 46 contacts the circuit breaker trolley 5 and drives the action pulley of the circuit breaker trolley 5 to slide in the first pulley groove 222 until the circuit breaker trolley 5 is pushed into the installation cavity of the opening cabinet.

[0069] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An external electric operating device for a switch cabinet with a calibration function, comprising a scissor lift (1) and a loading guide assembly (2), characterized in that: The loading and guiding assembly (2) comprises a loading assembly (21) and a guiding assembly (22), wherein the loading assembly (21) is mounted on the top of the lifting platform of the scissor-type lift (1), and the guiding assembly (22) is arranged on the loading assembly (21), and the guiding assembly (22) is connected to the rear side of the base of the scissor-type lift (1); The lifting platform of the scissor-type lift (1) is equipped with a positioning calibration drive component (3) for positioning a positioning structure on a switch cabinet, and the top of the lifting platform of the scissor-type lift (1) is equipped with a traction drive component (4), and the traction drive component (4) is connected to the loading component (21).

2. The switch cabinet external electric operating device with calibration function according to claim 1, characterized in that: The loading assembly (21) comprises a loading plate (211), a lifting column (212) and a slide groove (213); the loading plate (211) is fixedly connected to the lifting platform of the scissor lift (1) via the lifting column (212); there are two slide grooves (213) symmetrically extending through the top of the loading plate (211) along the front-rear direction; the slide grooves (213) are connected to the traction drive assembly (4); and the guide assembly (22) is arranged on the loading plate (211).

3. The switch cabinet external electric operating device with calibration function according to claim 2, characterized in that: The guide assembly (22) comprises a guide plate (221), a first pulley groove (222), a trapezoidal frame (223), a trapezoidal frame (223) and a second pulley groove (224); the guide plate (221) has two groups and is symmetrically fixedly installed on the left and right sides of the top of the loading plate (211); the first pulley groove (222) has two groups and is symmetrically opened on the left and right sides of the top of the loading plate (211); the trapezoidal frame (223) has two groups and is symmetrically detachably installed on the rear side of the base of the scissor lift (1); the upper end surface of the trapezoidal frame (223) is opened with a second pulley groove (224) used in conjunction with the first pulley groove (222); The distances from the guide plate (221), the first pulley groove (222) to the center of the loading plate (211) decrease sequentially.

4. The switch cabinet external electric operating device with calibration function according to claim 3, characterized in that: The positioning calibration drive assembly (3) comprises a drive assembly (31) and a positioning calibration assembly (32); the drive assembly (31) is installed on the lifting platform of the scissor lift (1); and there are two groups of positioning calibration assemblies (32) which are both connected to the drive assembly (31).

5. The switch cabinet external electric operating device with calibration function according to claim 4, characterized in that: The driving assembly (31) comprises a first motor (311), a first pulley assembly (312), a rotating rod (313) and a second pulley assembly (314); the first motor (311) is fixedly mounted on the inner top of the lifting platform of the scissor-type lift (1); there are two rotating rods (313); the two rotating rods (313) are symmetrically arranged on the left and right and are rotatably connected to the side wall of the lifting platform of the scissor-type lift (1); the two rotating rods (313) are transmission-connected via the second pulley assembly (314); the output end of the first motor (311) is transmission-connected to the rotating rod (313) located on the right side via the first pulley assembly (312); and the two sets of positioning and calibration assemblies (32) are respectively connected to the two rotating rods (313).

6. The switch cabinet external electric operating device with calibration function according to claim 5, characterized in that: The positioning calibration component (32) comprises a center correction module (321), a positioning column (322), a protrusion (323), a locking sleeve (324) and a spring (325); The rear side wall of the fixed end of the center correction module (321) is fixedly connected to the end of the rotating rod (313), the positioning column (322) is fixedly installed on the front side of the movable end of the center correction module (321), the protrusion (323) is fixedly installed on the front end of the outer wall of the positioning column (322), the locking sleeve (324) is slidably connected to the outer wall of the positioning column (322), one end of the spring (325) is fixedly connected to the movable end of the center correction module (321), and the other end of the spring (325) is fixedly connected to the locking sleeve (324); The positioning calibration component (32) further comprises a displacement detection sensor (326) and a marking block (327); the displacement detection sensor (326) is fixedly mounted on the front side of the fixed end of the center correction module (321); and the marking block (327) used for detection in cooperation with the displacement detection sensor (326) is fixedly mounted on the rear side of the movable end of the center correction module (321).

7. The switch cabinet external electric operating device with calibration function according to claim 6, characterized in that: The traction drive assembly (4) comprises a second motor (41), a screw rod (42), a connecting rod (43), a slider (44), a guide groove (45), a traction block (46) and a push-pull electromagnet (47); the second motor (41) is fixedly mounted on the top of the lifting platform of the scissor-type lift (1); the output end of the second motor (41) is fixedly connected to one end of the screw rod (42); the other end of the screw rod (42) is rotatably connected to the top of the scissor-type lift (1) via a bearing seat; the middle part of the lower side of the connecting rod (43) is connected to the screw rod ( 42) threaded connection, the sliders (44) are provided with two and are symmetrically fixedly mounted on the left and right sides of the upper end of the connecting rod (43), the upper end of the slider (44) is provided with a guide groove (45), the traction block (46) is connected to the inner wall of the guide groove (45) in a limited sliding connection in the up and down directions, the bottom of the slider (44) is fixedly mounted with a push-pull electromagnet (47), the output end of the push-pull electromagnet (47) passes through the slider (44) and is fixedly connected to the bottom of the traction block (46), and the two sliders (44) are respectively connected to the two slide grooves (213) in a sliding connection.

8. The method for operating the external electric operating device of a switch cabinet with a calibration function according to claim 7, characterized in that: The following steps are involved: Step 1, start the scissor lift (1) to a set height matching the installation cavity of the light cabinet; Step 2, move the scissor lift (1) so that the positioning column (322) and the protrusion (323) are respectively inserted into the pin hole and the notch on the switch cabinet, and at the same time, the locking sleeve (324) contacts the switch cabinet and slides on the positioning column (322) and compresses the spring (325) until the protrusion (323) is completely inserted into the inner end of the switch cabinet. When the height adjustment calibration of the scissor lift (1) is completed, the first motor (311) is started, and the first motor (311) drives the right rotating rod (313) to rotate through the first pulley assembly (312). The two rotating rods (313) are transmitted and rotate synchronously through the second pulley assembly (314). The rotating rod (313) drives the positioning column (322) and the protrusion (323) to rotate. When the protrusion (323) rotates to be misaligned with the notch, the protrusion (323) and the locking sleeve (324) lock the switch cabinet. Step 3: Detecting the position change of the marking block (327) at the movable end of the center correction module (321) by means of a displacement detection sensor (326) to obtain the height lifting deviation data of the scissor lift (1), and calibrating the lifting height of the scissor lift (1) according to the data; Step 4, the push-pull electromagnet (47) is energized, and the output end of the push-pull electromagnet (47) drives the traction block (46) to slide out from the inner end of the guide groove (45), and the second motor (41) is started. The second motor (41) drives the screw rod (42) to rotate, and the screw rod (42) drives the connecting rod (43) to move on the thread thereon, and the connecting rod (43) drives the slider (44) to slide in the slide groove (213). When the side wall of the traction block (46) contacts the circuit breaker trolley (5) and drives the action pulley of the circuit breaker trolley (5) to slide in the first pulley groove (222) until the circuit breaker trolley (5) is pushed into the installation cavity of the opening cabinet.

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