Steel platform device for building machine
By introducing a top plate assembly, a positioning assembly, and a connecting rod assembly into the steel platform device of the building construction machine, and utilizing the pre-positioning structure of the connecting blocks and positioning blocks, the problem of walkway plate installation offset was solved, thus improving installation efficiency and quality.
Patent Information
- Application Number
- CN202422949313.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-11-29
AI Technical Summary
In the steel platform device of the building construction machine, the lack of a pre-positioning structure for the installation of walkway panels leads to installation offset and cumulative errors, affecting the progress and quality of the project.
A steel platform device including a top plate assembly, a positioning assembly, and a connecting rod assembly was designed. The walkway slab is pre-positioned by the cooperation of the connecting block and the positioning block, and the installation accuracy is ensured by the adjustment screw and the scale bar.
This improved the ease and accuracy of walkway installation, reduced installation errors, and enhanced construction efficiency and quality.
Smart Images

Figure CN223724111U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to building system technical field especially relates to a steel platform device for building machine. BACKGROUND
[0002] In modern construction, building machine as a kind of efficient, fast construction equipment is widely used in the construction of high-rise and super high-rise building. Among them, steel platform as the core component of building machine, bears the important task of supporting construction personnel, construction machinery and materials. Steel platform usually includes walkway board for construction personnel activity and placing automated equipment and connecting rod assembly supporting walkway board, wherein walkway board is installed on connecting rod assembly, when installing walkway board, walkway board is often fixed on steel platform by simple bolt, buckle or welding etc., however, in this installation stage, there is often a pre-set positioning structure to ensure the accurate position of walkway board, in view of the large number of walkway boards, even if the slight position deviation or installation error, after overall laying, it may cause significant deviation phenomenon due to cumulative effect. This deviation further makes part of walkway board difficult to accurately align the pre-set hole for installation, ultimately not only delays the project progress, but also may adversely affect the overall quality of the project. SUMMARY
[0003] The utility model provides a steel platform device for building machine, can carry out prepositioning to the installation of walkway board, improves the installation convenience and accuracy of walkway board, improves installation efficiency and installation quality.
[0004] In order to solve the above technical problem, the utility model provides a steel platform device for building machine, including top plate assembly, the positioning assembly that is positioned to top plate assembly and the multiple connecting rod assemblies for supporting and fixing top plate assembly, top plate assembly includes multiple walkway boards, multiple walkway boards are connected and are arranged on connecting rod assembly, connecting rod assembly includes first connecting rod second connecting rod and connecting block, adjacent two connecting rod assemblies are connected parallel to each other or are connected perpendicularly to each other, the length direction of walkway board is parallel with the length direction of first connecting rod and second connecting rod, connecting block is arranged between first connecting rod and second connecting rod.
[0005] Connecting block includes first folding edge, and the upper surface of first connecting rod and second connecting rod is flush with first folding edge, and connecting hole is equipped on first folding edge, and positioning assembly includes fixed plate and positioning block, and fixed plate is equipped with fixed hole, and fixed hole can be fixed in connecting hole, and positioning block can slide on fixed plate, and the side portion of positioning block can abut with the side edge of walkway board to form installation positioning to walkway board.
[0006] As an improvement of the above-mentioned scheme, the connecting block further comprises a second fold, the first fold and the second fold are arranged in parallel, the second fold is flush with the lower surface of the first connecting rod and the second connecting rod, the same side of the first fold and the second fold abuts against the first connecting rod, and the other side of the first fold and the second fold abuts against the second connecting rod.
[0007] As an improvement of the above-mentioned scheme, the connecting block further comprises an intermediate fold, the intermediate fold is arranged vertically and located between the first fold and the second fold, one side of the intermediate fold abuts against the first connecting rod, and the other side of the intermediate fold abuts against the second connecting rod.
[0008] As an improvement of the above-mentioned scheme, the positioning assembly further comprises an adjusting table and an adjusting screw, the adjusting table is fixed to the side of the fixed plate away from the walkway plate, the end of the adjusting screw passes through the adjusting table and is rotationally connected with the positioning block, the external thread of the adjusting screw can be engaged with the internal thread of the adjusting table, and the adjusting screw can move relative to the adjusting table and drive the positioning block to move when the adjusting screw rotates.
[0009] As an improvement of the above-mentioned scheme, the positioning block comprises a connecting end and an abutting end, the connecting end is slidably connected with the fixed plate, and the abutting end protrudes upward from the connecting end, and the side of the abutting end can abut against the side of the walkway plate.
[0010] As an improvement of the above-mentioned scheme, the fixed plate comprises an upper plate, a vertical plate and a lower plate, the upper plate, the vertical plate and the lower plate form a groove, the side of the first connecting rod or the second connecting rod can be inserted into the groove, the positioning block is arranged on the upper plate, the upper plate is provided with a sliding groove, the bottom of the positioning block is provided with a sliding table, the sliding table can be inserted into the sliding groove and slide in the sliding groove, and the side of the sliding groove is further provided with a scale bar.
[0011] As an improvement of the above-mentioned scheme, the number of the positioning blocks is two, and the two positioning blocks are arranged on the two sides of the fixed plate respectively, and the two positioning blocks are connected with the two adjusting screws respectively.
[0012] As an improvement of the above-mentioned scheme, the steel platform device for the building machine further comprises a reinforcing rod assembly, the reinforcing rod assembly comprises a first reinforcing rod and a connecting sheet, the first reinforcing rod is perpendicular to the first connecting rod and the second connecting rod, the first reinforcing rod is connected between the end portions of the two connecting rod assemblies, the end portion of the first connecting rod is connected between the first connecting rod and the second connecting rod, and the connecting sheet is connected between the first reinforcing rod and the first connecting rod and between the first reinforcing rod and the second connecting rod.
[0013] As the improvement of the above-mentioned scheme, the steel platform device for building machine further comprises a support rod assembly, the support rod assembly comprises a horizontal support rod and an inclined support rod, the end of the horizontal support rod is connected with the end of the first reinforcing rod and is perpendicular to the first connecting rod and the second connecting rod, and the inclined support rod is connected with one end of the horizontal support rod in an inclined manner.
[0014] As the improvement of the above-mentioned scheme, the inclined support rods of the two adjacent support rod assemblies are arranged in opposite directions and can form an X shape, and a stabilizing assembly is further arranged between the two adjacent support rod assemblies, the stabilizing assembly comprises a stabilizing block and a back cover, the stabilizing block is provided with a first connecting groove and a second connecting groove, the side of one of the inclined support rods of the two adjacent support rod assemblies can be inserted into the first connecting groove, and the other inclined support rod of the two adjacent support rod assemblies can be inserted into the second connecting groove, and the back cover is fixed to the side of the stabilizing block and can cover the first connecting groove and the second connecting groove.
[0015] The steel platform device for building machine has the following beneficial effects:
[0016] The steel platform device for building machine comprises a top plate assembly, a positioning assembly and a connecting rod assembly, the top plate assembly comprises a plurality of walkway plates, the connecting rod assembly can support and fix the top plate assembly, the connecting rod assembly comprises a first connecting rod, a second connecting rod and a connecting block, the connecting block is arranged between the first connecting rod and the second connecting rod in a welding manner, a connecting hole is arranged on the first folding edge of the connecting block, a fixing plate on the positioning assembly is fixed in the connecting hole, the positioning block can slide on the fixing plate, and the side of the positioning block can abut against the side edge of the walkway plate, so that the positioning block can form installation positioning for the walkway plate before the walkway plate is installed and connected, deviation or deviation is prevented, subsequent installation and connection are facilitated, installation efficiency is improved, and installation quality is improved. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 is a structural schematic view of the steel platform device for building machine;
[0018] Figure 2 is a local split structural schematic view of the top plate assembly, the positioning assembly and the connecting rod assembly of the utility model;
[0019] Figure 3 is a local split structural schematic view of the top plate assembly of the utility model;
[0020] Figure 4is a split structure schematic view of the positioning assembly of the utility model;
[0021] Figure 5 is a structure schematic view of the connecting rod assembly of the utility model;
[0022] Figure 6 is Figure 5 is a local enlarged view of A in figure 1;
[0023] Figure 7 is a split structure schematic view of the stable assembly and the supporting rod assembly of the utility model. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be described in further detail below in conjunction with the drawings. Only this declaration, the orientation words of up, down, left, right, front, back, inside and outside appearing or about to appear in the utility model in the text are based on the drawings of the utility model, and it is not the specific limitation of the utility model.
[0025] Referring to Figure 1 and Figure 2 , the utility model embodiment discloses a steel platform device for building machine, including roof assembly 1, the positioning assembly 2 of positioning to roof assembly 1 and the multiple connecting rod assemblies 3 for supporting and fixing roof assembly 1, roof assembly 1 includes multiple walkway board 11, multiple walkway board 11 is connected and is arranged on connecting rod assembly 3, the end plate of walkway board 11 is connected with the side or end of other walkway board 11, to be able to form multiple different shapes and area combinations, and connecting rod assembly 3 includes first connecting rod 31, second connecting rod 32 and connecting block 33, connecting block 33 is welded between first connecting rod 31 and second connecting rod 32, can form the whole of first connecting rod 31 and second connecting rod 32, the length direction of walkway board 11 is parallel with the length direction of first connecting rod 31 and second connecting rod 32, first connecting rod 31 and second connecting rod 32 can support walkway board 11 after being connected.
[0026] The positioning assembly 2 is used for pre-positioning installation of the walkway plate 11, the connecting block 33 further comprises a first folded edge 331 which is flush with upper surfaces of the first connecting rod 31 and the second connecting rod 32, so that interference to installation of the walkway plate 11 can be avoided, and the first folded edge 331 is provided with a connecting hole 335, the positioning assembly 2 comprises a fixing plate 21 and a positioning block 22, the fixing plate 21 is provided with a fixing hole 217 which is fixed in the connecting hole 335 to realize fixing, and the positioning block 22 can slide on the fixing plate 21, in use, the fixing plate 21 is fixed in the connecting hole 335, and then the positioning block 22 is slid to a preset position, and a side portion of the positioning block 22 can abut against a side edge of the walkway plate 11, so that the installation position of the walkway plate 11 can be limited, pre-positioning is formed, installation positioning of the walkway plate 11 is formed, and error or deviation of the walkway plate 11 in subsequent installation can be avoided.
[0027] The beneficial effects of the embodiments of the utility model are as follows:
[0028] The steel platform device for the building machine comprises a top plate assembly 1, a positioning assembly 2 and a connecting rod assembly 3, the top plate assembly 1 comprises a plurality of walkway plates 11, the connecting rod assembly 3 can support and fix the top plate assembly 1, the connecting rod assembly 3 comprises a first connecting rod 31, a second connecting rod 32 and a connecting block 33, the connecting block 33 is arranged between the first connecting rod 31 and the second connecting rod 32 in a welding mode, the first folded edge 331 of the connecting block 33 is provided with a connecting hole 335, the fixing plate 21 of the positioning assembly 2 is fixed in the connecting hole 335, the positioning block 22 can slide on the fixing plate 21, and a side portion of the positioning block 22 can abut against a side edge of the walkway plate 11, so that the positioning block 22 can form installation positioning of the walkway plate 11 before the walkway plate 11 is installed and connected, deviation or deviation can be prevented, subsequent installation and connection are facilitated, installation efficiency is improved, and installation quality is improved.
[0029] Referring to Figure 3The connecting block 33 further comprises a second folded edge 332, the first folded edge 331 and the second folded edge 332 are arranged in parallel, when pre-positioning, the first folded edge 331 is flush with the upper surfaces of the first connecting rod 31 and the second connecting rod 32, and the second folded edge 332 is flush with the lower surfaces of the first connecting rod 31 and the second connecting rod 32, by controlling the flush effect of the upper and lower surfaces, the quality of positioning can be controlled, and the first folded edge 331 and the second folded edge 332 can be prevented from deviating, so as to ensure the welding quality. Wherein, one side of the first folded edge 331 and the second folded edge 332 abuts against the first connecting rod 31, and the other side of the first folded edge 331 and the second folded edge 332 abuts against the second connecting rod 32, so as to achieve the positioning effect.
[0030] Further, the connecting block 33 further comprises an intermediate folded edge 333, the intermediate folded edge 333 is arranged vertically, the first folded edge 331 and the second folded edge 332 are arranged at the upper and lower ends of the intermediate folded edge 333 respectively, one side of the intermediate folded edge 333 abuts against the first connecting rod 31, and the other side of the intermediate folded edge 333 abuts against the second connecting rod 32. The intermediate folded edge 333 not only improves the connection strength of the first folded edge 331 and the second folded edge 332, but also connects the first folded edge 331 and the second folded edge 332 into a whole, which facilitates the placement of the connecting block 33 between the first connecting rod 31 and the second connecting rod 32, saves the placement step, and is convenient for overall pre-positioning, improves the positioning effect, and the connecting block 33 has a larger volume compared with a single connecting sheet 42, which is beneficial for installation and welding, and is not easy to deviate after pre-positioning.
[0031] Referring to Figure 4In order to meet the different specifications of the walkway plate 11 and adjust the predetermined position, the positioning assembly 2 further comprises an adjusting platform 23 and an adjusting screw 24. The adjusting platform 23 is fixed to the fixed plate 21 away from the walkway plate 11, and the adjusting platform 23 protrudes upward from the surface of the fixed plate 21. The adjusting screw 24 can be a common screw, and the rod body of the adjusting screw 24 is provided with a thread. The adjusting platform 23 is also provided with a thread for engagement. The end of the adjusting screw 24 penetrates the adjusting platform 23 and is rotationally connected with the positioning block 22. The adjusting platform 23 is fixed to the fixed plate 21 and can be stationary relative to the fixed plate 21, while the positioning block 22 can slide relative to the fixed plate 21. The external thread of the adjusting screw 24 can be engaged with the internal thread of the adjusting platform 23. The end of the adjusting screw 24 is rotationally connected with the positioning block 22. When the adjusting screw 24 rotates, it can only rotate relative to the positioning block 22 and cannot be separated from the positioning block 22. When the adjusting screw 24 rotates, it can move relative to the adjusting platform 23 and drive the positioning block 22 to move. When adjusting, the positioning block 22 can be pushed to move on the fixed plate 21 by rotating the adjusting screw 24, so as to adjust the position of the side of the walkway plate 11, achieve the effect of adjusting the predetermined position, and also be suitable for walkway plates 11 of different specifications.
[0032] The positioning block 22 comprises a connecting end 221 and an abutting end 222. The connecting end 221 is slidingly connected with the fixed plate 21. The abutting end 222 protrudes upward from the connecting end 221. The connecting end 221 and the abutting end 222 form an "L" shape. The side of the abutting end 222 can abut the side of the walkway plate 11. The height of the abutting end 222 protruding upward can be appropriately set according to the actual limiting effect and the specification of the walkway plate 11.
[0033] Further, in order to enable the fixing plate 21 to be fixedly connected to the connecting rod assembly 3, the fixing plate 21 comprises an upper plate 211, a vertical plate 212 and a lower plate 213, the upper plate 211, the vertical plate 212 and the lower plate 213 surround a groove 214, the side of the first connecting rod 31 or the second connecting rod 32 can be inserted into the groove 214, the upper plate 211, the vertical plate 212 and the lower plate 213 form a limit, combined with the fixing of the connecting hole 335, can play a firm fixing effect. Wherein the positioning block 22 is arranged on the upper plate 211, the upper plate 211 is provided with a sliding groove 215, the bottom of the positioning block 22 is provided with a sliding table 223, the sliding table 223 can be inserted into the sliding groove 215 and slide in the sliding groove 215, the sliding groove 215 limits the movement direction of the positioning block 22, further, the side of the sliding groove 215 is also provided with a scale bar 216, by using the scale bar 216, the adjusted distance can be known, the position can be adjusted according to the scale bar 216.
[0034] The number of the positioning block 22 is 2, the two positioning blocks 22 are arranged on the two sides of the fixing plate 21 respectively, and the two positioning blocks 22 are connected with two adjusting screws 24 respectively. Using two positioning blocks 22 can position from two positions of the side of the walkway plate 11, which can avoid the problems of limit failure caused by surface sticking not tight, surface sticking skew and the like when a single positioning block 22 is positioned, after using two positioning blocks 22, the limiting effect of two planes is better than that of a single plane, combined with the scale bar 216, the two positioning blocks 22 are positioned on the same scale, so that the side of the two positioning blocks 22 can be located on the same plane, thus the surface of the side of the walkway plate 11 can be located on the whole plane formed by the side of the two positioning blocks 22, which ensures the correctness of the positioning direction.
[0035] Referring to Figure 5 and Figure 6, the steel platform device for building machine further comprises a reinforcing rod assembly 4, the reinforcing rod assembly 4 comprises a first reinforcing rod 41 and a connecting sheet 42, the first reinforcing rod 41 is perpendicular to the first connecting rod 31 and the second connecting rod 32, the first connecting rod 31 and the second connecting rod 32 are horizontally arranged, as cross rods, the first reinforcing rod 41 is vertically arranged, as a longitudinal rod, the first reinforcing rod 41 is connected between the ends of two connecting rod assemblies 3, the end of the first connecting rod 31 is connected between the first connecting rod 31 and the second connecting rod 32, that is, the connecting structure of the end face and the side face, the connecting structure has a small contact area and low connection strength, in order to improve the connection strength, the connecting sheet 42 is connected between the first reinforcing rod 41 and the first connecting rod 31 and between the first reinforcing rod 41 and the second connecting rod 32, the connecting sheet 42 provides an additional connecting area for the connecting parts of the first reinforcing rod 41 and the first connecting rod 31 and the first reinforcing rod 41 and the second connecting rod 32, so that the connecting area is increased and the connection strength is improved.
[0036] Referring to Figure 5 , the steel platform device for building machine further comprises a supporting rod assembly 5, the supporting rod assembly 5 comprises a horizontal supporting rod 51 and an inclined supporting rod 52, the end of the horizontal supporting rod 51 is connected with the end of the first reinforcing rod 41, so that the supporting rod assembly 5 is connected with the reinforcing rod assembly 4 and perpendicular to the first connecting rod 31 and the second connecting rod 32, the inclined supporting rod 52 is obliquely connected with one end of the horizontal supporting rod 51, for strengthening the connection strength of the supporting rod assembly 5.
[0037] Referring to Figure 7Wherein two adjacent support rod assemblies 5 are arranged in parallel with each other, and both of the two support rod assemblies 5 are perpendicular to the plane formed by the connecting rod assembly 3, and can form support in another direction for the walkway plate 11, and the inclined support rods 52 in the two adjacent support rod assemblies 5 are opposite in the inclined direction and can form an "X" shape, in order to connect the inclined support rods 52 in the two adjacent support rod assemblies 5 and improve the support strength of the adjacent support rod assemblies 5, a stabilizing assembly 6 is further arranged between the two support rod assemblies 5, the stabilizing assembly 6 comprises a stabilizing block 61 and a rear cover 62, the stabilizing block 61 is provided with a first connecting groove 611 and a second connecting groove 612, the side of one inclined support rod 52 in the two adjacent support rod assemblies 5 can be inserted into the first connecting groove 611, the first connecting groove 611 and the second connecting groove 612 can form an "X" shape and can correspond to the shape formed by the two adjacent inclined support rods 52, and the other inclined support rod 52 in the two adjacent support rod assemblies 5 can be inserted into the second connecting groove 612, the rear cover 62 is fixed to the side of the stabilizing block 61 and can cover the first connecting groove 611 and the second connecting groove 612, the stabilizing block 61 and the rear cover 62 can make the two adjacent inclined support rods 52 form interlocking support, when one of the support rod assemblies 5 or the inclined support rods 52 is loose, the first connecting groove 611 or the second connecting groove 612 can rely on the other support rod assembly 5 or the inclined support rod 52 to form a certain support for the support rod assembly 5 or the inclined support rod 52, thereby forming interlocking support and improving the support strength of the support rod assembly 5.
[0038] The above is the preferred embodiment of the present application, it should be noted that for those skilled in the art, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements are also considered to be within the scope of the present application.
Claims
1. A steel deck apparatus for a building machine, characterized by, The roof plate assembly includes a plurality of walkway plates connected to each other and arranged on the connecting rod assembly, the connecting rod assembly includes a first connecting rod, a second connecting rod and a connecting block, two adjacent connecting rod assemblies are connected in parallel or perpendicularly, the length direction of the walkway plate is parallel to the length direction of the first connecting rod and the second connecting rod, and the connecting block is arranged between the first connecting rod and the second connecting rod. The connecting block includes a first folded edge flush with the upper surfaces of the first connecting rod and the second connecting rod, and a connecting hole is arranged on the first folded edge, the positioning assembly includes a fixed plate and a positioning block, the fixed plate is provided with a fixed hole capable of being fixed in the connecting hole, and the positioning block is capable of sliding on the fixed plate, the side of the positioning block is capable of abutting the side edge of the walkway plate to form installation positioning of the walkway plate.
2. The steel deck assembly for a building machine of claim 1, wherein, The connecting block further includes a second folded edge arranged in parallel with the first folded edge, the second folded edge is flush with the lower surfaces of the first connecting rod and the second connecting rod, the same side of the first folded edge and the second folded edge abuts the first connecting rod, and the other side of the first folded edge and the second folded edge abuts the second connecting rod.
3. Steel deck apparatus for a building machine according to claim 2, characterized in that The connecting block further includes an intermediate folded edge arranged vertically between the first folded edge and the second folded edge, one side of the intermediate folded edge abuts the first connecting rod, and the other side abuts the second connecting rod.
4. The steel deck assembly for a building machine of claim 1, wherein, The positioning assembly further includes an adjusting table and an adjusting screw, the adjusting table is fixed to the side of the fixed plate away from the walkway plate, the end of the adjusting screw penetrates through the adjusting table and is rotationally connected with the positioning block, the external thread of the adjusting screw is capable of engaging with the internal thread of the adjusting table, and the adjusting screw is capable of moving relative to the adjusting table and driving the positioning block to move when rotating.
5. The steel deck assembly for a building machine of claim 1, wherein, The positioning block includes a connecting end and an abutting end, the connecting end is slidingly connected with the fixed plate, and the abutting end protrudes upward from the connecting end, and the side of the abutting end is capable of abutting the side of the walkway plate.
6. The steel deck assembly for a building machine of claim 1, wherein, The fixed plate includes an upper plate, a vertical plate and a lower plate, the upper plate, the vertical plate and the lower plate form a groove, the side of the first connecting rod or the second connecting rod is capable of being inserted into the groove, the positioning block is arranged on the upper plate, the upper plate is provided with a sliding groove, the bottom of the positioning block is provided with a sliding table, the sliding table is capable of being inserted into and sliding in the sliding groove, and the side of the sliding groove is further provided with a scale bar.
7. The steel deck assembly for a building machine of claim 4, wherein, The number of the positioning blocks is two, and the two positioning blocks are arranged on the two sides of the fixed plate respectively, and the two positioning blocks are connected with the two adjusting screws respectively.
8. The steel deck assembly for a building machine of claim 1, wherein, The steel platform device for the building machine further comprises a reinforcing rod assembly, the reinforcing rod assembly comprises a first reinforcing rod and a connecting plate, the first reinforcing rod is perpendicular to the first connecting rod and the second connecting rod, the first reinforcing rod is connected between the ends of two connecting rod assemblies, the ends of the first connecting rod are connected between the first connecting rod and the second connecting rod, and the connecting plate is connected between the first reinforcing rod and the first connecting rod and between the first reinforcing rod and the second connecting rod.
9. The steel deck assembly for a building machine of claim 8, wherein, The steel platform device for the building machine further comprises a support rod assembly, the support rod assembly comprises a horizontal support rod and an inclined support rod, the ends of the horizontal support rod are connected to the ends of the first reinforcing rod and are perpendicular to the first connecting rod and the second connecting rod, and the inclined support rod is obliquely connected to one end of the horizontal support rod.
10. The steel deck assembly for a building machine of claim 9, wherein, The two adjacent support rod assemblies are arranged in parallel to each other, the inclined support rods of the two adjacent support rod assemblies are oppositely inclined and can form an "X" shape, and a stabilizing assembly is further arranged between the two adjacent support rod assemblies, the stabilizing assembly comprises a stabilizing block and a rear cover, the stabilizing block is provided with a first connecting groove and a second connecting groove, one side of one inclined support rod of the two adjacent support rod assemblies can be inserted into the first connecting groove, and the other inclined support rod of the two adjacent support rod assemblies can be inserted into the second connecting groove, and the rear cover is fixed to the side of the stabilizing block and can cover the first connecting groove and the second connecting groove.