A distribution box with adjustable assembly structure

Abstract

The application relates to the technical field of distribution boxes, in particular to a distribution box with an adjustable assembly structure, which comprises an electric meter box and a mounting plate, and is provided with a position adjusting assembly and an angle adjusting assembly in the electric meter box. The distribution box with the adjustable assembly structure can realize synchronous rotation of two driving shafts I through linkage cooperation of a driving handle, a driving shaft I, a gear and a synchronous belt, drives both sides of the bottom block to stably slide along a limiting groove, and then drives the overall movement of a sliding frame and the mounting plate to the position of the electric meter box mouth, so that a worker can complete the disassembly, replacement and maintenance operation of the electric element without exploring into the box body, the operation process is simplified, the operation difficulty of high-altitude and narrow-space operation is reduced, and the convenience and efficiency of operation and maintenance work are improved.

Description

Technical Field

[0001] This invention relates to the field of distribution box technology, and more specifically to a distribution box with an adjustable assembly structure. Background Technology

[0002] As a commonly used basic electrical supporting equipment, the distribution box has many practical advantages, such as small and compact size, convenient and efficient on-site installation and deployment, stable and excellent overall technical performance, flexible and fixed installation and use location, highly targeted internal electrical configuration and functional layout, and no limitation on the use scenario by site environmental conditions. At the same time, it also has outstanding usage characteristics such as wide applicability, stable and reliable daily operation, high utilization rate of internal cabinet space, small overall footprint, and green and environmentally friendly use without pollution. It is now widely used in various power transmission and circuit control scenarios such as industrial production, building buildings, municipal power distribution and civil power distribution.

[0003] Existing outdoor distribution boxes are often installed at high altitudes. During equipment inspection, fault repair, and replacement of electrical components, workers need to carry various maintenance tools to climb and carry out high-altitude operations. In high-altitude environments, the space available for human movement is small, and the personnel's standing posture and operating posture are greatly restricted, making it difficult to flexibly adjust their body position.

[0004] Because the mounting brackets for various electrical components inside the distribution box are embedded deep within the box, the front door panel and the box frame can obstruct the view and create physical barriers. This restricts the range of motion of workers' hands, making it difficult to reach the electrical components on the deep mounting brackets for fastening, disconnecting wires, disassembling, assembling, debugging, and troubleshooting. This greatly increases the difficulty of high-altitude maintenance work, not only reducing equipment maintenance efficiency but also increasing the risk of errors due to obstructed operation. This is not conducive to ensuring the safe and orderly operation and maintenance of outdoor electrical equipment. Summary of the Invention

[0005] This invention aims to provide a distribution box with an adjustable assembly structure to solve the problems mentioned above. Outdoor distribution boxes are often erected at high locations, requiring personnel to climb for maintenance, resulting in limited operating space and difficulty in maintaining stability. Furthermore, the internal component supports are located deep within the distribution box, and the door and frame of the box cause visual and physical obstruction, restricting hand movement and making it inconvenient to tighten, disassemble, debug, and troubleshoot components deep inside.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A distribution box with an adjustable assembly structure includes a meter box and a mounting plate for carrying electrical components; The meter box is equipped with a position adjustment component for adjusting the position of the mounting plate and an angle adjustment component for adjusting the angle of the mounting plate. Both the position adjustment component and the angle adjustment component are located inside the meter box. When the position adjustment component moves the mounting plate to the opening of the meter box, the mounting plate flips over to allow electrical components to be installed and removed from its surface.

[0007] Preferably, the position adjustment assembly includes a sliding frame, a support shaft, and a base block. Two sliding frames are vertically arranged inside the meter box and symmetrically arranged on both sides of the mounting plate. Two support shafts are symmetrically installed on both sides of the corresponding mounting plates. The opposite surfaces of the two sliding frames are provided with limiting holes that are adapted to the support shafts. The outer wall of the support shaft is rotatably connected to the wall of the corresponding limiting hole. Through the cooperation of the sliding frame, support shaft, and limiting hole, the mounting plate can be supported, thereby maintaining the stability of the mounting plate.

[0008] Preferably, the base block is fixed to the bottom of the corresponding sliding frame, and a drive shaft is connected to the base block. The surface of the drive shaft has a threaded section, and a threaded groove adapted to the threaded section is opened on the base block. The threaded section of the drive shaft is rotatably connected to the inside of the threaded groove. By rotating the drive shaft, the base block rotates along the axial direction of the drive shaft, causing the mounting plate to slide towards the opening of the meter box, so that the staff can disassemble, install, and repair the electrical components on the mounting plate.

[0009] Preferably, a base plate is fixedly connected to the inner wall of the meter box. A limiting groove adapted to the base block is provided on the base plate. The base plate is slidably connected inside the corresponding limiting groove. A fixing block is fixed on one side of the base plate. A limiting hole II adapted to the drive shaft is provided on the fixing block. The limiting hole II is coaxially arranged with the drive shaft. The outer wall of the drive shaft I is rotatably connected to the inner wall of the limiting hole II. The limiting groove on the base plate can limit the base block to maintain the stability of the mounting plate when it slides.

[0010] Preferably, a drive handle is fixed to one side of the drive shaft, and gears are fixed to the outer walls of both drive shafts. A timing belt is installed between the two gears. Through the cooperation of the gears and the timing belt, the two drive shafts can rotate synchronously to maintain the stability of the sliding of the mounting plate.

[0011] Preferably, the angle adjustment assembly includes a gear ring, a rack, a lifting plate, and a top shaft. The gear ring is installed on the outer wall of the support shaft, the rack is installed on one side wall of the lifting plate, and the gear ring and the rack are meshed together. The bottom of the top shaft is fixed to the top of the lifting plate. The top of the sliding frame has a receiving hole that matches the top shaft. The top shaft and the receiving hole are coaxially arranged, and the outer wall of the top shaft is rotatably connected to the wall of the receiving hole.

[0012] Preferably, the inner wall of the meter box is fixed with a connecting plate, the outer wall of the top shaft is fixed with a linkage side shaft, the connecting plate is provided with a slide rail adapted to the linkage side shaft, and the slide rail is inclined, and the linkage side shaft is slidably connected inside the connecting plate.

[0013] Preferably, the mounting plate is provided with a clamping assembly, which includes a side clamping plate and an end plate. Multiple side clamping plates are arranged in pairs. An end plate is fixed to one side of the side clamping plate. A second drive shaft is threadedly connected to the end plate. A fixing plate is fixed to the top of the mounting plate. The fixing plate has a positioning hole that matches the second drive shaft, and the second drive shaft is slidably connected inside the positioning hole.

[0014] Preferably, both ends of the second drive shaft are fixed with linkage gear rings, and a linkage rack is installed on the sliding frame, with the linkage rack meshing with the linkage gear rings.

[0015] Preferably, a limiting block is fixed on one side of the sliding frame, and the top of the limiting block is slidably connected to the bottom of the connecting plate.

[0016] The beneficial effects of this invention are as follows: 1. Through the linkage of the drive handle, drive shaft one, gear and synchronous belt, the two drive shafts can rotate synchronously, driving the bottom blocks on both sides to slide smoothly along the limit groove, thereby driving the sliding frame and mounting plate to move to the position of the meter box opening. This allows the staff to complete the disassembly, replacement and maintenance of electrical components without having to enter the box, simplifying the operation process, reducing the difficulty of working at height and in confined spaces, and improving the convenience and efficiency of maintenance work. At the same time, the limiting structure of the bottom plate, limit groove and limit hole two can effectively ensure the stability of the bottom block and drive shaft one during sliding and rotation, and avoid the offset and jamming during position adjustment.

[0017] 2. By relying on the meshing linkage structure of the inclined slide rail, the linkage side shaft, the lifting plate, and the rack and pinion, the support shaft can be automatically driven to rotate during the movement of the mounting plate towards the box opening. This causes the mounting plate to flip and tilt, so that the operating slope of the mounting plate faces the box opening. The angle can be adapted synchronously with the position movement, allowing the staff to assemble components, troubleshoot circuits, and repair faults from a comfortable perspective and operating posture. This effectively avoids the problems of obstructed vision and limited hand operation on the vertical plate surface, adapts to the operating habits of staff of different heights, further improves the accuracy of maintenance and assembly, and reduces operational errors. In addition, the receiving hole, connecting plate, and limit block support and limiting structure at the top of the sliding frame can ensure the stable operation of the lifting plate and the top shaft, maintain the structural stability of the mounting plate after flipping, and prevent shaking and displacement during operation.

[0018] 3. During the unfolding operation of the mounting plate, the linkage gear ring and linkage rack mesh to drive the drive shaft to rotate, causing the two side clamping plates to move away from each other and automatically release the clamping space, making it convenient for workers to quickly place electrical components. When the structure is reset after assembly, the side clamping plates automatically slide towards each other to laterally clamp and limit the electrical components. This realizes the automated linkage of assembly loosening and resetting clamping, simplifies the assembly steps, and can also adapt and clamp electrical components of different specifications. It effectively avoids the problems of loosening, shifting, and falling off electrical components due to vibration and line pulling during the operation of the distribution box, greatly improving the stability and safety of equipment operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the meter box of the present invention; Figure 3 This is a schematic diagram of the position adjustment component of the present invention; Figure 4 This is a schematic diagram of the clamping assembly of the present invention; Figure 5 This is a schematic diagram of the angle adjustment component of the present invention.

[0020] In the picture: 10. Meter box; 11. Mounting plate; 20. Position adjustment assembly; 21. Sliding frame; 22. Support shaft; 23. Limiting hole one; 24. Base block; 25. Drive shaft one; 26. Base plate; 27. Limiting groove; 28. Fixing block; 29. ​​Limiting hole two; 210. Drive handle; 211. Gear; 212. Synchronous belt; 30. Angle adjustment assembly; 31. Gear ring; 32. Gear rack; 33. Lifting plate; 34. Top shaft; 35. Receiving hole; 36. Connecting plate; 37. Slide rail; 38. Linkage side shaft; 39. Limit block; 40. Clamping assembly; 41. Side clamping plate; 42. End plate; 43. Drive shaft II; 44. Fixing plate; 45. Linkage gear ring; 46. Linkage rack. Detailed Implementation

[0021] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0022] Reference Appendix Figures 1-5As shown, a distribution box with an adjustable assembly structure includes a meter box 10, a mounting plate 11, a position adjustment component 20, an angle adjustment component 30, and a clamping component 40. The meter box 10 is installed outdoors and can accommodate and protect electrical components. The mounting plate 11 is installed inside the meter box 10, and electrical components can be installed on the front of the mounting plate 11 to provide installation space. The position adjustment component 20, angle adjustment component 30, and clamping component 40 are all installed inside the meter box 10. The position adjustment component 20 provides displacement adjustment for the mounting plate 11, controlling the horizontal sliding of the mounting plate 11 back and forth inside the meter box 10. In normal equipment operation, the position adjustment component 20 can store and fix the mounting plate 11 deep inside the meter box 10 cavity, ensuring the enclosure's airtightness. When personnel need to install, disassemble, repair, or troubleshoot electrical components, the position adjustment component 20 can be driven to smoothly slide the mounting plate 11 to the opening of the meter box 10, exposing the electrical components deep inside the enclosure. Within the working field of view, as the position adjustment component 20 moves the mounting plate 11 towards the box opening, the angle adjustment component 30 is simultaneously activated, automatically and slowly rotating and adjusting the mounting plate 11 to present a downward tilt, avoiding obstruction of vision and restriction of hand operation when operating on a vertical plate surface. This makes operations such as tightening component screws, connecting wires, and fault detection more convenient and precise, significantly improving work efficiency and accuracy. When the work is completed and the mounting plate 11 retracts into the box, the angle adjustment component 30 can automatically rotate and reset the mounting plate 11 to a vertical state, ensuring a neat and uniform internal structure. During the retraction and reset of the mounting plate 11, the clamping component 40 can abut against the side and tail limit positions of various electrical components, forming an all-round clamping limit for the assembled electrical components. This effectively counteracts the displacement caused by wind vibration and equipment operation vibration in outdoor environments, preventing problems such as loosening, displacement, detachment, and poor wire contact of electrical components after long-term use, and significantly improving the firmness of electrical component installation and the overall stability of equipment operation.

[0023] The meter box 10 adopts an outdoor protective shell, which can be adapted to complex outdoor working conditions such as exposure to the elements, wind, rain and sun for a long time. It can fully accommodate various electrical components such as meters, circuit switches and terminals. The enclosed box structure isolates rainwater, dust, debris, external impacts, and insect intrusion, effectively preventing short circuits, aging and damage to electrical components.

[0024] First, the staff opens the protective door on the surface of the meter box 10, releasing the box from its closed state. Then, the position adjustment component 20 is driven to move, causing the built-in mounting plate 11 to slide smoothly towards the opening of the meter box 10. Simultaneously, the angle adjustment component 30 is triggered, causing the mounting plate 11 to automatically flip to a downward working angle. Once the mounting plate 11 is in place, the staff can complete the alignment, installation, wiring, or maintenance and replacement of various electrical components from an open and unobstructed view. After the work is completed, the position adjustment component 20 is driven to reverse, smoothly pushing the mounting plate 11 deep into the cavity of the meter box 10. At the same time, the angle adjustment component 30 causes the mounting plate 11 to flip and reset, returning to its initial neat posture. During this process, the clamping component 40 automatically fits against the side wall of the electrical component, completing the clamping and limiting fixation. Then, the box door is closed, achieving safe and stable assembly and protection of the electrical components, ensuring the long-term stable operation of outdoor electrical equipment.

[0025] refer to Figure 3 and Figure 5 As shown, the position adjustment assembly 20 includes a sliding frame 21, a support shaft 22, and a base block 24. There are two sliding frames 21, which are vertically arranged inside the meter box 10 and symmetrically arranged on both sides of the mounting plate 11. The two support shafts 22 are symmetrically installed on both sides of the corresponding mounting plate 11. The support shafts 22 are arranged laterally on the side wall of the mounting plate 11, that is, the support shafts 22 and the sliding frames 21 are perpendicular to each other. The opposite surfaces of the two sliding frames 21 are provided with limiting holes 23 that are adapted to the support shafts 22. The support shafts 22 and the limiting holes 23 are coaxially arranged. The outer wall of the support shaft 22 is rotatably connected to the hole wall of the corresponding limiting hole 23. The limiting holes 23 can limit the support shaft 22, thereby maintaining the stability of the mounting plate 11.

[0026] The bottom block 24 is fixed to the bottom of the corresponding sliding frame 21. A drive shaft 25 is connected to the bottom block 24. The surface of the drive shaft 25 has a threaded section. The bottom block 24 has a threaded groove that matches the threaded section. The threaded section of the drive shaft 25 is rotatably connected to the inside of the threaded groove. When the drive shaft 25 rotates axially, the bottom block 24 can move along the axial direction of the drive shaft 25 so that the mounting plate 11 slides to the opening of the meter box 10.

[0027] A base plate 26 is fixedly connected to the inner wall of the meter box 10. A limiting groove 27 adapted to the bottom block 24 is provided on the base plate 26. The base plate 26 is slidably connected inside the corresponding limiting groove 27, which can limit the bottom block 24 to maintain the stability of the bottom block 24 when it slides along the drive shaft 25.

[0028] A fixing block 28 is fixed on one side of the base plate 26. The fixing block 28 has a limiting hole 29 that is adapted to the drive shaft 25. The limiting hole 29 is coaxially arranged with the drive shaft 25. The outer wall of the drive shaft 25 is rotatably connected to the inner wall of the limiting hole 29. The limiting hole 29 limits the drive shaft 25, thereby maintaining the stability of the drive shaft 25.

[0029] A drive handle 210 is fixed to one side of the drive shaft 25 for driving the drive shaft 25 to rotate, thereby driving the base block 24 to move. Gears 211 are fixed to the outer walls of both drive shafts 25. A timing belt 212 is installed between the two gears 211. The gears 211 and timing belt 212 can make the two drive shafts 25 rotate synchronously, thereby making the two base blocks 24 slide synchronously.

[0030] refer to Figure 3 , Figure 4 and Figure 5 As shown, the angle adjustment assembly 30 includes a gear ring 31, a rack 32, a lifting plate 33, and a top shaft 34. The gear ring 31 is installed on the outer wall of the support shaft 22, and the rack 32 is installed on one side wall of the lifting plate 33. The gear ring 31 and the rack 32 are meshed together. When the lifting plate 33 moves down, the gear ring 31 cooperates with the rack 32 to drive the support shaft 22 to rotate, thereby causing the mounting plate 11 to flip so that the workers can disassemble or repair the electrical components on the mounting plate 11.

[0031] The bottom of the top shaft 34 is fixed to the top of the lifting plate 33. The top of the sliding frame 21 is provided with a receiving hole 35 that is compatible with the top shaft 34. The top shaft 34 and the receiving hole 35 are coaxially arranged. The outer wall of the top shaft 34 is rotatably connected to the hole wall of the receiving hole 35. The receiving hole 35 can limit the top shaft 34 to maintain the stability of the lifting plate 33.

[0032] A connecting plate 36 is fixed to the inner wall of the meter box 10, and a linkage side shaft 38 is fixed to the outer wall of the top shaft 34. A slide rail 37 adapted to the linkage side shaft 38 is provided on the connecting plate 36, and the slide rail 37 is inclined. The linkage side shaft 38 is slidably connected to the inside of the connecting plate 36. When the linkage side shaft 38 slides from the top of the slide rail 37 to the bottom of the slide rail 37, it can drive the lifting plate 33 to move down, so as to drive the mounting plate 11 to flip.

[0033] A limiting block 39 is fixed on one side of the sliding frame 21. The top of the limiting block 39 is slidably connected to the bottom of the connecting plate 36, which can support the sliding frame 21 to maintain the stability of the mounting plate 11.

[0034] refer to Figure 4As shown, the clamping assembly 40 includes a side clamping plate 41 and an end plate 42. Multiple side clamping plates 41 are grouped in pairs. An end plate 42 is fixed to one side of the side clamping plate 41. A second drive shaft 43 is threadedly connected to the end plate 42. A fixing plate 44 is fixed to the top of the mounting plate 11. The fixing plate 44 has a positioning hole that matches the second drive shaft 43. The second drive shaft 43 is slidably connected inside the positioning hole. Linkage gear rings 45 are fixed to the outer walls of both ends of the second drive shaft 43. A linkage rack 46 is installed on the sliding frame 21, and the linkage rack 46 is meshed with the linkage gear ring 45.

[0035] In use, open the door of the meter box 10, then turn the drive handle 210. The drive handle 210 drives the connected drive shaft 25 to rotate. Through the cooperation of the gear 211 and the timing belt 212, the two drive shafts 25 rotate synchronously. The bottom block 24 slides along the groove length of the limiting groove 27. The bottom block 24 drives the sliding frame 21 to slide towards the opening of the meter box 10. The sliding frame 21 drives the mounting plate 11 to slide towards the opening of the meter box 10. At the same time, the linkage side shaft 38 slides from the top of the slide rail 37 to its bottom. The top shaft 34 drives the lifting plate 33 to move down inside the sliding frame 21, and through... The engagement of the gear ring 31 and the rack 32 drives the support shaft 22 to rotate. The support shaft 22 then drives the mounting plate 11 to flip, and the mounting plate 11 is tilted, with its lower inclined surface facing the opening of the meter box 10. During the flipping process, the linkage gear ring 45 engages with the linkage rack 46 to drive the drive shaft 43 to rotate. The drive shaft 43 then drives the side clamping plates 41 to move away from each other through the end plate 42. The electrical components are then installed on the mounting plate 11. The drive handle 210 is then turned in the opposite direction to reset the structure. The two side clamping plates 41 slide closer to each other to clamp and limit the electrical components.

[0036] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A distribution box with an adjustable assembly structure, characterized in that: It includes an electric meter box (10) and a mounting plate (11) for carrying electrical components, the mounting plate (11) being installed inside the electric meter box (10); The meter box (10) is equipped with a position adjustment component (20) for adjusting the position of the mounting plate (11) and an angle adjustment component (30) for adjusting the angle of the mounting plate (11). The position adjustment component (20) and the angle adjustment component (30) are both located inside the meter box (10). When the position adjustment component (20) drives the mounting plate (11) to slide toward the opening of the meter box (10), the mounting plate (11) flips over to allow electrical components to be installed and removed from its surface.

2. The distribution box with an adjustable assembly structure according to claim 1, characterized in that, The position adjustment assembly (20) includes a sliding frame (21), a support shaft (22), and a base block (24). The two sliding frames (21) are vertically arranged inside the meter box (10). The two sliding frames (21) are symmetrically arranged on both sides of the mounting plate (11). The two support shafts (22) are symmetrically installed on both sides of the corresponding mounting plate (11). The opposite surfaces of the two sliding frames (21) are provided with a limiting hole (23) that matches the support shaft (22). The outer wall of the support shaft (22) is rotatably connected to the hole wall of the corresponding limiting hole (23).

3. The distribution box with an adjustable assembly structure according to claim 2, characterized in that, The bottom block (24) is fixed to the bottom of the corresponding sliding frame (21). A drive shaft (25) is connected to the bottom block (24). The surface of the drive shaft (25) has a threaded section. A threaded groove adapted to the threaded section is opened on the bottom block (24). The threaded section of the drive shaft (25) is rotatably connected to the inside of the threaded groove.

4. The distribution box with an adjustable assembly structure according to claim 3, characterized in that, The inner wall of the meter box (10) is fixedly connected to a base plate (26). A limiting groove (27) adapted to the base block (24) is provided on the base plate (26). The base plate (26) is slidably connected inside the corresponding limiting groove (27). A fixing block (28) is fixed on one side of the base plate (26). A limiting hole (29) adapted to the drive shaft (25) is provided on the fixing block (28). The limiting hole (29) is coaxially arranged with the drive shaft (25). The outer wall of the drive shaft (25) is rotatably connected to the inner wall of the limiting hole (29).

5. The distribution box with an adjustable assembly structure according to claim 3, characterized in that, A drive handle (210) is fixed on one side of the drive shaft (25), and gears (211) are fixed on the outer walls of both drive shafts (25). A timing belt (212) is installed between the two gears (211).

6. The distribution box with an adjustable assembly structure according to claim 4, characterized in that, The angle adjustment assembly (30) includes a gear ring (31), a rack (32), a lifting plate (33), and a top shaft (34). The gear ring (31) is installed on the outer wall of the support shaft (22), and the rack (32) is installed on one side wall of the lifting plate (33). The gear ring (31) and the rack (32) are meshed together. The bottom of the top shaft (34) is fixed to the top of the lifting plate (33). The top of the sliding frame (21) is provided with a receiving hole (35) that is compatible with the top shaft (34). The top shaft (34) and the receiving hole (35) are coaxially arranged. The outer wall of the top shaft (34) is rotatably connected to the hole wall of the receiving hole (35).

7. The distribution box with an adjustable assembly structure according to claim 6, characterized in that, The inner wall of the meter box (10) is fixed with a connecting plate (36), and the outer wall of the top shaft (34) is fixed with a linkage side shaft (38). A slide rail (37) adapted to the linkage side shaft (38) is provided on the connecting plate (36), and the slide rail (37) is inclined. The linkage side shaft (38) is slidably connected inside the connecting plate (36).

8. The distribution box with an adjustable assembly structure according to claim 7, characterized in that, The mounting plate (11) is provided with a clamping assembly (40), which includes a side clamping plate (41) and an end plate (42). Multiple side clamping plates (41) are arranged in pairs. An end plate (42) is fixed on one side of the side clamping plate (41). A second drive shaft (43) is threadedly connected to the end plate (42). A fixing plate (44) is fixed on the top of the mounting plate (11). A positioning hole adapted to the second drive shaft (43) is opened on the fixing plate (44), and the second drive shaft (43) is slidably connected inside the positioning hole.

9. The distribution box with an adjustable assembly structure according to claim 8, characterized in that, Both ends of the drive shaft (43) are fixed with linkage gear rings (45), and a linkage rack (46) is installed on the sliding frame (21), and the linkage rack (46) is meshed with the linkage gear ring (45).

10. The distribution box with an adjustable assembly structure according to claim 8, characterized in that, A limiting block (39) is fixed on one side of the sliding frame (21), and the top of the limiting block (39) is slidably connected to the bottom of the connecting plate (36).

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