An intelligent platform tooling for easy maintenance of condensers

Abstract

The present invention provides an intelligent platform tooling for condenser maintenance, which relates to the technical field of maintenance platforms, including: a bracket and a connecting block; the bracket adopts a rectangular frame structure; a cleaning system is arranged on the top of the bracket; the connecting block adopts a Chinese-character structure; the connecting block also includes: a control shaft, which adopts a cylindrical structure, and two groups of control shafts are arranged, and cross-shaped groove structures are arranged at both ends of the control shaft; a fixing block is arranged on the outer side of the control shaft; a clamping block, which adopts a rectangular block structure; the adjustment of the angles of the maintenance platform in the front and rear directions and the left and right directions is met, so that the staff can perform maintenance work on the condenser from different angles, which is conducive to improving the maintenance efficiency; it solves the problem that the current platform tooling is not convenient for adjusting the angles of the platform in various directions during use, which will not only cause damage to the staff's body over a long period of time, but also bring inconvenience to the maintenance work.

Description

Technical Field

[0001] The present invention relates to the technical field of maintenance platforms, and in particular to an intelligent platform tooling for condenser maintenance. Background Art

[0002] The condenser is a component of the refrigeration system and a type of heat exchanger. It can convert gas or vapor into liquid and quickly transfer the heat in the tube to the air near the tube. Currently, during the maintenance and repair of the condenser, due to the different shapes of the condenser, the condenser is usually fixed on the platform tooling with a clamp for maintenance.

[0003] However, the current platform tooling still has the following shortcomings:

[0004] The current platform tooling is not convenient for adjusting the angles of the platform in various directions during use. Since the parts and angles of the condenser that need to be repaired are different, this may require workers to use different postures to perform repairs. Over time, it will not only cause damage to the workers' bodies, but also bring inconvenience to the maintenance work, which is not conducive to improving maintenance efficiency. Summary of the Invention

[0005] In view of this, the present invention provides an intelligent platform tooling that facilitates condenser maintenance. The tooling has a connecting block. Through the cooperation of the connecting block and the control shaft, the inclination angle of the maintenance platform in various directions can be adjusted, which is convenient for workers to perform maintenance from different angles. It is convenient and practical, and improves maintenance efficiency.

[0006] The present invention provides an intelligent platform tooling for facilitating the maintenance of a condenser, specifically comprising: a bracket and a connecting block; the bracket adopts a rectangular frame structure; a cleaning system is provided on the top of the bracket; the connecting block adopts a Chinese-character structure; the connecting block also comprises: a control shaft, the control shaft adopts a cylindrical structure, and there are two groups of control shafts, one group of control shafts is rotatably arranged on both sides of the connecting block, and the other group of control shafts is rotatably sleeved on the inner side of the connecting block, both ends of the control shaft are provided with a cross-shaped groove structure, and a spring is sleeved on the outer side of one end of the control shaft; a fixed block is provided on the outer side of the control shaft; a clamping block, the clamping block adopts a rectangular block structure, and there are two groups of clamping blocks, and the two groups of clamping blocks are respectively fixed on the upper and lower sides of one end of the control shaft.

[0007] Optionally, the bracket also includes: a connecting plate, which adopts a rectangular plate structure, and there are four groups of connecting plates in total, and the four groups of connecting plates are fixedly arranged at the bottom of the bracket in a rectangular array, and a through-type screw hole structure is opened on one side of the connecting plate; a screw, which is rotatably arranged in the screw hole on one side of the connecting plate; a limit block, which adopts a cross-shaped block structure, and is rotatably arranged at one end of the screw, and the outer wall of the limit block is in contact with the inner wall of the cross-shaped groove at both ends of the control shaft.

[0008] Optionally, the cleaning system also includes: a first guide rail, two groups of first guide rails are provided, and the two groups of first guide rails are respectively fixedly provided on both sides of the top of the bracket; a second guide rail, the second guide rail is slidably provided between the two groups of first guide rails; a slider, the slider adopts a rectangular block structure, and the slider is slidably provided at the bottom of the second guide rail; a protective cover, the protective cover adopts an internal hollow arc plate structure, and the protective cover is fixedly connected to the bottom of the slider through a hose, and an arc-shaped opening structure is provided on both sides of the bottom of the protective cover; a strap, two groups of straps are provided, and the two groups of straps are respectively fixedly provided at the arc-shaped openings on both sides of the bottom of the protective cover; an exhaust fan, the exhaust fan is fixedly provided on the top right side of the bracket, and the exhaust fan is connected to the interior of the protective cover through a hose.

[0009] Optionally, the connecting block also includes: a control ring, which adopts a circular ring structure, and there are two groups of control rings in total, and the two groups of control rings are respectively slidably arranged on the outside of one end of the two groups of control shafts, and rectangular groove structures are provided on both sides of the inner wall of the control ring; a first latch tooth, which adopts a circular ring structure, and there are two groups of first latch teeth in total, and the two groups of first latch teeth are respectively fixedly arranged on one side of the two groups of control rings.

[0010] Optionally, the fixed block adopts a U-shaped block structure, and a through-type circular slot structure is opened on one side of the fixed block. There are four groups of fixed blocks in total, and the four groups of fixed blocks are respectively sleeved on the outer sides of the two ends of the two groups of control shafts; the fixed block also includes: second latch teeth, the second latch teeth adopt a circular ring structure, and there are two groups of second latch teeth in total, and the two groups of second latch teeth are respectively fixed on one side of the fixed block corresponding to the positions of the two groups of first latch teeth.

[0011] Optionally, the fixed block also includes: a maintenance platform, which adopts an internal hollow rectangular block structure, and the maintenance platform is fixedly arranged on the top of the four groups of fixed blocks, and the top and four sides of the maintenance platform are provided with a through-type circular slot structure in a rectangular array; an installation slot, which adopts a rectangular block structure, and there are two groups of installation slots, and the two groups of installation slots are respectively fixed on the left and rear sides of the maintenance platform, and a rectangular groove structure is provided on the top of the installation slot, and a through-type circular slot structure is provided on one side of the installation slot corresponding to the circular slot position on one side of the maintenance platform; an installation block, which adopts an L-shaped block structure, and there are two groups of installation blocks, and the two groups of installation blocks are respectively fixed on the front and right sides of the maintenance platform, and a through-type circular slot structure is provided on one side of the installation block corresponding to the circular slot position on one side of the maintenance platform; a load-bearing rod, which adopts a cylindrical structure, and the diameter of the load-bearing rod matches the diameter of the circular slot on one side of the maintenance platform.

[0012] Beneficial effects

[0013] Compared with the traditional tooling platform, the tooling platform according to each embodiment of the present invention cooperates with the connecting block, the control shaft, the control ring, the first latch, the fixed block and the second latch. When the tilt angle of the maintenance platform needs to be adjusted, the connection status of the two sets of control shafts and the bracket is controlled, and the angle of the fixed block outside the control shaft is positioned by cooperating with the first latch and the second latch to meet the adjustment of the front and rear directions and the left and right directions of the maintenance platform, which is convenient for the staff to perform maintenance work on the condenser from different angles, so that the maintenance platform can be adjusted to the angle that is most suitable for the staff's work, which is convenient for the staff's operation, reduces the staff's operation difficulty, and is conducive to improving maintenance efficiency.

[0014] In addition, by setting up a cleaning system, when performing welding maintenance on the condenser, the protective cover is moved to the outside of the welding area, the worker's hands are inserted into the inside of the protective cover, and the protective cover is fixed to the hands with straps, so that the worker's hands can operate inside the protective cover. The protective cover can block the flying sparks generated during the welding process to prevent the flying sparks from flying around and injuring people. At the same time, the smoke generated by welding in the protective cover is discharged in time by the exhaust fan, which is conducive to maintaining a good working environment and preventing the smoke from damaging the health of the workers.

[0015] In addition, by providing a maintenance platform, mounting grooves, mounting blocks and load-bearing rods, when it is necessary to repair condensers of different shapes and sizes, if the size of the current maintenance platform cannot meet the needs of the current maintenance construction, the front and rear or left and right groups of maintenance platforms can be combined and installed through the cooperation of the mounting grooves and the mounting blocks to increase the construction area of ​​the maintenance platform to meet different maintenance construction needs. At the same time, the cooperation of multiple groups of load-bearing rods can increase the load-bearing capacity between the assembled groups of maintenance platforms, thereby improving the safety of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0017] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0018] In the attached figure:

[0019] Figure 1 shows a schematic top shaft view of an embodiment according to the present invention;

[0020] Figure 2 shows a schematic bottom shaft view according to an embodiment of the present invention;

[0021] Figure 3shows a bottom view schematic diagram according to an embodiment of the present invention;

[0022] Figure 4 shows a front schematic diagram according to an embodiment of the present invention;

[0023] Figure 5 shows a side schematic diagram according to an embodiment of the present invention;

[0024] Figure 6 It shows an axial schematic diagram of a bracket and a connecting block in a separated state according to an embodiment of the present invention;

[0025] Figure 7 A bottom view schematically shows a bracket and a connecting block in a disassembled state according to an embodiment of the present invention.

[0026] Figure 8 A schematic axial view of a connecting block and a fixing block in a separated state according to an embodiment of the present invention is shown.

[0027] Figure 9 A schematic top view of a connecting block and a fixing block in a separated state according to an embodiment of the present invention is shown.

[0028] Figure 10 A schematic diagram showing the connection relationship between the bracket and the cleaning system according to an embodiment of the present invention is shown.

[0029] Reference Signs List

[0030] 1. Bracket; 101. Connecting plate; 102. Screw; 103. Limit block; 2. Cleaning system; 201. First guide rail; 202. Second guide rail; 203. Slider; 204. Protective cover; 205. Strap; 206. Exhaust fan; 3. Connecting block; 301. Control shaft; 302. Block; 303. Control ring; 304. First latch; 4. Fixing block; 401. Second latch; 402. Maintenance platform; 403. Mounting slot; 404. Mounting block; 405. Load-bearing rod. DETAILED DESCRIPTION

[0031] In order to make the purpose, scheme and advantages of the technical solution of the present invention more clear, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the common meanings in the art. The same reference numerals in the drawings represent the same components.

[0032] Example: Please refer to Figures 1 to 10 :

[0033] The present invention proposes an intelligent platform tooling for facilitating condenser maintenance, comprising: a bracket 1 and a connecting block 3; the bracket 1 adopts a rectangular frame structure; a cleaning system 2 is provided on the top of the bracket 1; the connecting block 3 adopts a Chinese-shaped structure; the connecting block 3 also includes: a control shaft 301, the control shaft 301 adopts a cylindrical structure, and there are two groups of control shafts 301, one group of control shafts 301 is rotatably arranged on both sides of the connecting block 3, and the other group of control shafts 301 is rotatably sleeved on the inner side of the connecting block 3, both ends of the control shaft 301 are provided with a cross-shaped groove structure, and a spring is sleeved on the outer side of one end of the control shaft 301; a fixed block 4 is provided on the outer side of the control shaft 301; a clamping block 302, the clamping block 302 adopts a rectangular block structure, and there are two groups of clamping blocks 302, and the two groups of clamping blocks 302 are respectively fixed on the upper and lower sides of one end of the control shaft 301.

[0034] Furthermore, according to an embodiment of the present invention, Figure 6 and Figure 7 As shown, the bracket 1 also includes: a connecting plate 101, which adopts a rectangular plate structure. There are four groups of connecting plates 101 in total, and the four groups of connecting plates 101 are fixedly arranged at the bottom of the bracket 1 in a rectangular array, and a through-type screw hole structure is opened on one side of the connecting plate 101; a screw rod 102, which is rotatably arranged in the screw hole on one side of the connecting plate 101; a limit block 103, which adopts a cross-shaped block structure. The limit block 103 is rotatably arranged at one end of the screw rod 102, and the outer wall of the limit block 103 is in contact with the inner wall of the cross-shaped groove at both ends of the control shaft 301.

[0035] Furthermore, according to an embodiment of the present invention, Figure 8 and Figure 9 As shown, the connecting block 3 also includes: a control ring 303, which adopts a circular ring structure. There are two groups of control rings 303, and the two groups of control rings 303 are respectively slidably arranged on the outside of one end of the two groups of control shafts 301, and rectangular groove structures are provided on both sides of the inner wall of the control ring 303; a first latch tooth 304, which adopts a circular ring structure. There are two groups of first latch teeth 304, and the two groups of first latch teeth 304 are respectively fixedly arranged on one side of the two groups of control rings 303.

[0036] Furthermore, according to an embodiment of the present invention, Figures 6 to 9 As shown, the fixed block 4 adopts a U-shaped block structure, and a through-type circular slot structure is opened on one side of the fixed block 4. There are four groups of fixed blocks 4, and the four groups of fixed blocks 4 are respectively sleeved on the outer sides of the two ends of the two groups of control shafts 301; the fixed block 4 also includes: second latch teeth 401, the second latch teeth 401 adopt a circular ring structure, and there are two groups of second latch teeth 401, and the two groups of second latch teeth 401 are respectively fixed on one side of the fixed block 4 corresponding to the positions of the two groups of first latch teeth 304.

[0037] The specific usage and function of this embodiment are as follows: each set of clamps are positioned and installed in the slots on the top of the maintenance platform 402 according to the shape of the condenser, and then the condenser is fixed on the top of the maintenance platform 402 by the clamps. When the tilt angle of the maintenance platform 402 in the left and right directions needs to be adjusted, the limit blocks 103 are slid out of the cross-shaped grooves on both sides of the set of control shafts 301 set in the left and right directions by rotating the screw 102, so that the limit blocks 103 lose the limiting effect on the set of control shafts 301 set in the left and right directions of the connecting block 3, and then the control ring 303 outside the other set of control shafts 301 slides along the clamping block 302, so that the first locking tooth 304 is disengaged from the corresponding set of second locking teeth 401, thereby losing the limiting effect on the front set of fixed blocks 4. Since the set of control shafts 301 in the front and rear directions cannot rotate by themselves under the action of the two sets of limit blocks 103, the screw 102 and the connecting plate 101, it can be When the maintenance platform 402 is in the forward and backward direction, the two sets of limit blocks 103 are slid out of the cross grooves at both ends of the corresponding set of control shafts 301, and then the same steps are followed to complete the operation.

[0038] Second embodiment

[0039] Based on the first embodiment, an intelligent platform tooling is provided for condenser maintenance, which can adjust the inclination angle of the maintenance platform 402 in various directions to meet the needs of different maintenance and improve the maintenance efficiency. However, in the process of maintenance, it is usually necessary to weld the condenser, and a large amount of flying sparks and smoke will be generated during the welding process, which will not only affect the surrounding working environment and be detrimental to the physical and mental health of the workers, but also the flying sparks can easily splash and injure the surrounding personnel, posing a certain safety hazard. The intelligent platform tooling for condenser maintenance also includes: In addition, according to an embodiment of the present invention, if Figure 6 and Figure 10As shown, the cleaning system 2 also includes: a first guide rail 201, which is provided with two groups, and the two groups of first guide rails 201 are respectively fixedly provided on both sides of the top of the bracket 1; a second guide rail 202, which is slidably provided between the two groups of first guide rails 201; a slider 203, which adopts a rectangular block structure, and the slider 203 is slidably provided at the bottom of the second guide rail 202; a protective cover 204, which adopts an internal hollow arc-shaped plate structure, and the protective cover 204 is fixedly connected to the bottom of the slider 203 through a hose, and an arc-shaped opening structure is opened on both sides of the bottom of the protective cover 204; a strap 205, which is provided with two groups, and the two groups of straps 205 are respectively fixedly provided at the arc-shaped openings on both sides of the bottom of the protective cover 204; an exhaust fan 206, which is fixedly provided on the top right side of the bracket 1, and the exhaust fan 206 is connected to the interior of the protective cover 204 through a hose.

[0040] The specific usage and function of this embodiment are as follows: during the welding maintenance of the condenser, the protective cover 204 can be first moved to the welding area, and the left and right positions of the protective cover 204 on the top of the maintenance platform 402 can be adjusted by sliding the second guide rail 202 left and right along the first guide rail 201, and the front and rear positions of the protective cover 204 can be adjusted by sliding the slider 203 back and forth along the second guide rail 202. Then the staff inserts both hands into the inner side of the protective cover 204 through the two sets of arc-shaped openings on both sides of the protective cover 204, and fixes the protective cover 204 on both hands through the straps 205, so that the staff's hands can operate inside the protective cover 204. The protective cover 204 can block the flying sparks generated during the welding process to prevent the flying sparks from flying around and injuring people. At the same time, the exhaust fan 206 can promptly discharge the smoke generated by welding in the protective cover 204, which is conducive to maintaining a good working environment and preventing the smoke from damaging the health of the staff.

[0041] Third embodiment

[0042] Based on the second embodiment, an intelligent platform tooling is provided for condenser maintenance, which can block flying sparks and dust during maintenance, and absorb smoke and dust. However, due to the different types of condensers, their shapes and sizes are also different, and the size of the platform tooling is mostly fixed, and the size of the tooling platform cannot be adjusted according to the different sizes of condensers, which has certain limitations during use. The intelligent platform tooling for condenser maintenance also includes: In addition, according to an embodiment of the present invention, if Figures 1 to 9As shown, the fixed block 4 also includes: a maintenance platform 402, which adopts a rectangular block structure with a hollow interior. The maintenance platform 402 is fixedly arranged on the top of the four groups of fixed blocks 4, and the top and surrounding of the maintenance platform 402 are provided with a through-type circular slot structure in a rectangular array; a mounting groove 403, which adopts a rectangular block structure. There are two groups of mounting grooves 403, and the two groups of mounting grooves 403 are respectively fixed on the left and rear sides of the maintenance platform 402. The top of the mounting groove 403 is provided with a rectangular groove structure, and one side of the mounting groove 403 is provided with a rectangular groove structure. A through-type circular slot structure is provided at the circular slot position corresponding to one side of the maintenance platform 402; the mounting block 404 adopts an L-shaped block structure, and there are two groups of mounting blocks 404, and the two groups of mounting blocks 404 are respectively fixed on the front and right sides of the maintenance platform 402, and a through-type circular slot structure is provided at the circular slot position corresponding to one side of the maintenance platform 402; the load-bearing rod 405, the load-bearing rod 405 adopts a cylindrical structure, and the diameter of the load-bearing rod 405 matches the diameter of the circular slot on one side of the maintenance platform 402.

[0043] The specific usage and function of this embodiment are as follows: when the size of the maintenance platform 402 needs to be adjusted, the mounting block 404 is inserted into the mounting slot 403, and the front and rear or left and right maintenance platforms 402 are assembled and installed through the cooperation of the mounting slot 403 and the mounting block 404. Then, the load-bearing rod 405 is passed through the maintenance platform 402, the mounting slot 403 and the circular slot hole opened on one side of the mounting block 404 in sequence. Through the cooperation of multiple groups of load-bearing rods 405, the load-bearing capacity of each group of maintenance platforms 402 after assembly can be enhanced, thereby improving the safety of multiple groups of maintenance platforms 402 during assembly and use, and reducing safety hazards.

[0044] Finally, it should be noted that when describing the positions of various components and the matching relationships between them, the present invention usually takes one / a pair of components as an example. However, those skilled in the art should understand that such positions, matching relationships, etc. are also applicable to other components / other pairs of components.

[0045] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the scope of protection of the present invention. The scope of protection of the present invention is determined by the appended claims.

Claims

1. An intelligent platform tooling for condenser maintenance, characterized in that: Comprising: A bracket (1) and a connecting block (3); the bracket (1) adopts a rectangular frame structure; a cleaning system (2) is arranged at the top of the bracket (1); the connecting block (3) adopts a Chinese character 'zhong' structure; the connecting block (3) further includes: a control shaft (301), the control shaft (301) adopts a cylindrical structure, and there are two groups of control shafts (301) in total. One group of control shafts (301) is rotatably arranged on both sides of the connecting block (3), and the other group of control shafts (301) is rotatably sleeved inside the connecting block (3). Cross-shaped groove structures are provided at both ends of the control shaft (301), and a spring is sleeved on the outer side of one end of the control shaft (301); a fixing block (4) is arranged on the outer side of the control shaft (301); a clamping block (302), the clamping block (302) adopts a rectangular block structure, and there are two groups of clamping blocks (302) in total, and the two groups of clamping blocks (302) are respectively fixedly arranged on the upper and lower sides of one end of the control shaft (301). The bracket (1) further includes: a connecting plate (101), the connecting plate (101) adopts a rectangular plate structure, and there are four groups of connecting plates (101) in total. The four groups of connecting plates (101) are fixedly arranged in a rectangular array at the bottom of the bracket (1), and a through screw hole structure is provided on one side of the connecting plate (101); a screw (102), the screw (102) is rotatably arranged in the screw hole on one side of the connecting plate (101); a limiting block (103), the limiting block (103) adopts a cross-shaped block structure, the limiting block (103) is rotatably arranged at one end of the screw (102), and the outer wall of the limiting block (103) is attached to the inner wall of the cross-shaped groove at both ends of the control shaft (301). The connecting block (3) further includes: a control ring (303), the control ring (303) adopts a circular ring structure, and there are two groups of control rings (303) in total. The two groups of control rings (303) are respectively slidably arranged on the outer sides of one ends of the two groups of control shafts (301), and rectangular groove structures are provided on both sides of the inner wall of the control ring (303); a first tooth (304), the first tooth (304) adopts a circular ring structure, and there are two groups of first teeth (304) in total. The two groups of first teeth (304) are respectively fixedly arranged on one side of the two groups of control rings (303). The fixing block (4) adopts a U-shaped block structure, a through circular hole structure is provided on one side of the fixing block (4), and there are four groups of fixing blocks (4) in total. The four groups of fixing blocks (4) are respectively sleeved on the outer sides of both ends of the two groups of control shafts (301); the fixing block (4) further includes: a second tooth (401), the second tooth (401) adopts a circular ring structure, and there are two groups of second teeth (401) in total. The two groups of second teeth (401) are respectively fixedly arranged on one side of the fixing block (4) corresponding to the positions of the two groups of first teeth (304).

2. The intelligent platform tooling for condenser maintenance as claimed in claim 1, characterized in that: The cleaning system (2) further comprises: a first guide rail (201), wherein two groups of the first guide rails (201) are provided, and the two groups of the first guide rails (201) are respectively fixedly provided on both sides of the top of the bracket (1); a second guide rail (202), wherein the second guide rail (202) is slidably provided between the two groups of the first guide rails (201); and a slider (203), wherein the slider (203) adopts a rectangular block structure, and the slider (203) is slidably provided at the bottom of the second guide rail (202).

3. The intelligent platform tooling for condenser maintenance as claimed in claim 2, characterized in that: The cleaning system (2) further comprises: a protective cover (204), the protective cover (204) adopts an arc-shaped plate structure with a hollow interior, and the protective cover (204) is fixedly connected to the bottom of the slider (203) via a hose, and arc-shaped opening structures are provided on both sides of the bottom of the protective cover (204); a binding belt (205), two groups of binding belts (205) are provided, and the two groups of binding belts (205) are respectively fixedly provided at the arc-shaped openings on both sides of the bottom of the protective cover (204); and an exhaust fan (206), the exhaust fan (206) is fixedly provided on the top right side of the bracket (1), and the exhaust fan (206) is connected to the inside of the protective cover (204) via a hose.

4. The intelligent platform tooling for condenser maintenance as claimed in claim 1, characterized in that: The fixed block (4) further comprises: a maintenance platform (402), the maintenance platform (402) adopts an internally hollow rectangular block structure, the maintenance platform (402) is fixedly arranged on the top of the four groups of fixed blocks (4), and the top and surrounding of the maintenance platform (402) are provided with a through-type circular slot hole structure in a rectangular array; and an installation slot (403), the installation slot (403) adopts a rectangular block structure, there are two groups of installation slots (403), and the two groups of installation slots (403) are respectively fixedly arranged on the left side and the rear side of the maintenance platform (402), the top of the installation slot (403) is provided with a rectangular groove structure, and one side of the installation slot (403) is provided with a through-type circular slot hole structure at a position of a circular slot hole on one side of the maintenance platform (402).

5. The intelligent platform tooling for condenser maintenance as claimed in claim 4, characterized in that: The fixing block (4) further comprises: a mounting block (404), the mounting block (404) adopting an L-shaped block structure, two groups of mounting blocks (404) are provided, and the two groups of mounting blocks (404) are respectively fixedly provided on the front side and the right side of the maintenance platform (402), and a through-type circular slot structure is provided on one side of the mounting block (404) corresponding to the circular slot position on one side of the maintenance platform (402); and a load-bearing rod (405), the load-bearing rod (405) adopting a cylindrical structure, and the diameter of the load-bearing rod (405) matches the diameter of the circular slot on one side of the maintenance platform (402).

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