Space truss-based split-rib-free easy-to-clean rectangular combined water tank
By welding the truss assembly components on the inner side panel module of the rectangular water tank, the problem of large space occupied and difficult to clean the tension structure is solved, and the stability and cleaning convenience of the water tank are achieved.
Patent Information
- Application Number
- CN202323468353.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-19
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2033-12-19
AI Technical Summary
The interior of the existing rectangular water tank is connected by a stretching structure, which occupies a large internal space and is difficult to clean.
The space truss structure is adopted, and multiple sets of truss assembly components are welded on the inner side panel module to form a standard welding assembly module. The bending and tensile resistance of the trusses are used to cancel the tensioning ribs and increase the internal moving space.
Reduces tear and collapse accidents of water tank side panels, and facilitates water tank welding, cleaning and construction and maintenance.
Smart Images

Figure CN223135247U_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of water tanks, and particularly to a rectangular combined water tank without tie bars and easy to clean based on a space truss. Background Art
[0002] A rectangular water tank is a device for storing hot or cold water and maintaining its temperature. It is usually composed of a rectangular metal or plastic shell and internal heat insulation materials, which can effectively reduce heat dissipation. Rectangular water tanks are usually installed in places such as homes, schools, factories or hotels to provide hot or cold water supply. They can be customized according to needs and have different sizes and capacities to meet the water supply requirements of different occasions. This kind of device can usually effectively save energy and reduce energy costs, and is an environmentally friendly and cost-effective water source storage solution.
[0003] In the prior art, rectangular water tanks are often assembled and welded using a bottom plate, a top plate module and side plate modules. In order to ensure the overall stability of the water tank, a tie bar structure is often used inside to fixedly connect the top plate and the side plates of the water tank. However, the above connection structure occupies a relatively large internal space as a whole and it is difficult for workers to clean it. Summary of the Invention
[0004] Based on this, the purpose of the present invention is to provide a rectangular combined water tank without tie bars and easy to clean based on a space truss, so as to solve the technical problem that in the prior art, a tie bar structure is often used inside to fixedly connect the top plate and the side plates of the water tank, but the above connection structure occupies a relatively large internal space as a whole and it is difficult for workers to clean it.
[0005] To achieve the above purpose, the present invention provides the following technical solution: A rectangular combined water tank without tie bars and easy to clean based on a space truss, including a bottom plate, a top plate module and side plate modules. The top plate module and the side plate modules are all assembled and welded by combining multiple groups of templates without bevel edges, single bevel edge templates and double bevel edge templates;
[0006] Inside each group of side plate modules, multiple groups of truss combination members are evenly distributed. The truss combination members include a first truss combination member and a second truss combination member. The bottom plate, the four groups of side plate modules and the top plate module are fixedly connected by welding.
[0007] By adopting the above technical solution, multiple groups of truss combination members are evenly welded and fixed inside the side plate module of the water tank. Among them, the truss combination members are pre-assembled and welded in the factory to form standard and unified welded assembly modules, and then combined into welded members, greatly reducing the influence brought by external factors and welding operations. By utilizing the bending resistance and tensile capacity of the truss combination members, the overall compressive deformation resistance of the stainless steel water tank side plate module is improved. While increasing the force-bearing contact area, it also reduces the tearing of the water tank side plate and the overall collapse accident caused by the stress concentration of the tension bars. The internal activity space is large, which greatly facilitates subsequent water tank welding, manual cleaning, and construction maintenance.
[0008] The present invention is further configured such that the multiple groups of the non-beveled templates, single-beveled templates, and double-beveled templates are combined, assembled, and welded into a three-meter water tank, and multiple groups of first truss combination members are correspondingly fixed inside the side plate module of the three-meter water tank. The first truss combination members include first upper slant-grooved hollow square steel pipes, first lower slant-grooved hollow square steel pipes, first non-grooved hollow square steel pipes, first U-shaped tie rods, first upper top plate gaskets, and first side plate gaskets. The first truss combination members are welded from the first upper slant-grooved hollow square steel pipes, first non-grooved hollow square steel pipes, and first lower slant-grooved hollow square steel pipes from top to bottom. Two groups of first U-shaped tie rods are fixed inside the first non-grooved hollow square steel pipe, two groups of first upper top plate gaskets are fixed at the top of the first upper slant-grooved hollow square steel pipe, and first side plate gaskets are fixed at the inner top end of the first upper slant-grooved hollow square steel pipe. First cross tie rods are fixed between the multiple groups of first truss combination members of each side plate module, and first diagonal tie rods fixedly connected to the side plate module are fixed at one end of each first truss combination member.
[0009] By adopting the above technical solution, an internal three-meter first truss combination member is formed through combined welding and assembly. It is pre-assembled and welded in the factory to form standard and unified welded assembly modules and combined welded members, greatly reducing the influence brought by external factors and welding operations. By utilizing the bending resistance and tensile capacity of the internal three-meter first truss combination member, the overall compressive deformation resistance of the stainless steel water tank side plate is improved. While increasing the force-bearing contact area, it also reduces the tearing of the water tank side plate and the overall collapse accident caused by the stress concentration of the tension bars. The internal activity space is large, which greatly facilitates subsequent water tank welding, manual cleaning, and construction maintenance.
[0010] The present invention is further configured that the multiple groups of the non-beveled edge formwork, the single-beveled edge formwork and the double-beveled edge formwork are assembled and welded into a four-meter water tank, and multiple groups of second truss assembly components are correspondingly fixedly arranged on the inner side of the four-meter water tank side panel module, and the second truss assembly component includes a second upper oblique slotted hollow square steel pipe, a second lower oblique slotted hollow square steel pipe, a second non-slotted hollow square steel pipe, a second U-shaped tie rod, a second upper top plate gasket, a second side plate gasket and a belly tie rod, and the second truss assembly component is composed of the second upper oblique slotted hollow square steel pipe, the second non-slotted hollow square steel pipe and the second lower oblique slotted hollow square steel pipe. It is welded from top to bottom, and three groups of second U-shaped tie rods are fixed on the inner side of the second non-slotted hollow square steel tube, two groups of second upper top plate gaskets are fixed on the top of the second upper inclined slotted hollow square steel tube, and a second side plate gasket is fixed on the top end of the inner side of the second upper inclined slotted hollow square steel tube, and a web tie rod is cross-fixed between every two groups of the second U-shaped tie rods, and the number of web tie rods in each group of second truss assembly components is four groups, second transverse tie rods are fixed between multiple groups of second truss assembly components of each group of side panel modules, and one end of the second truss assembly component is fixed with a second diagonal tie rod fixedly connected to the side panel module.
[0011] By adopting the above technical scheme, a built-in four-meter second truss composite component is formed by combined welding and assembly. It can be pre-assembled and welded in the factory to form a standard and unified welding assembly module. The combined welded components greatly reduce the influence of external factors and welding operations. The bending resistance, tensile strength and overall deformation resistance of the built-in four-meter second truss composite component are used to improve the overall compression and non-deformation resistance of the stainless steel water tank side plate. While increasing the force contact area, it also reduces the tearing of the water tank side plate and the overall collapse caused by the stress concentration of the reinforcement. The internal activity space is large, which greatly facilitates the subsequent water tank welding, manual cleaning and construction maintenance.
[0012] In summary, the present invention mainly has the following beneficial effects: the present invention uniformly welds and fixes multiple groups of truss assembly components on the inner side of the side panel module of the water tank, wherein the truss assembly components are pre-assembled and welded in the factory to form standard and unified welded assembly modules, which are then combined into welded components, which greatly reduces the influence of external factors and welding operations. The bending resistance and tensile strength of the truss assembly components are utilized to improve the overall compression resistance and non-deformation ability of the stainless steel water tank side panel module, which increases the force contact area while reducing the tearing of the water tank side panel and the overall collapse accidents caused by the stress concentration of the reinforcement. The internal activity space is large, which greatly facilitates the subsequent water tank welding, manual cleaning and construction maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;
[0014] Figure 2 Internal structure schematic diagram of the first embodiment of the present invention;
[0015] Figure 3 Structural schematic diagram of the first truss combination member of the present invention;
[0016] Figure 4 For the present invention Figure 3 Enlarged view at location A;
[0017] Figure 5 Combination schematic diagram of the first truss combination member of the present invention;
[0018] Figure 6 Overall structural schematic diagram of the second embodiment of the present invention;
[0019] Figure 7 Internal structure schematic diagram of the second embodiment of the present invention;
[0020] Figure 8 Structural schematic diagram of the second truss combination member of the present invention;
[0021] Figure 9 For the present invention Figure 8 Enlarged view at location B;
[0022] Figure 10 Combination schematic diagram of the second truss combination member of the present invention;
[0023] Figure 11 Enlarged structural schematic diagram of the template without bevel edge of the present invention;
[0024] Figure 12 Enlarged structural schematic diagram of the single bevel edge template of the present invention;
[0025] Figure 13 Enlarged structural schematic diagram of the double bevel edge template of the present invention.
[0026] In the figure: 1, bottom plate; 2, top plate module; 3, side plate module; 4, template without bevel edge; 5, single bevel edge template; 6, double bevel edge template; 7, truss combination member; 8, first truss combination member; 801, first upper slant-grooved hollow square steel pipe; 802, first lower slant-grooved hollow square steel pipe; 803, first non-grooved hollow square steel pipe; 804, first U-shaped pull rod; 805, first upper top plate gasket; 806, first side plate gasket; 9, second truss combination member; 901, second upper slant-grooved hollow square steel pipe; 902, second lower slant-grooved hollow square steel pipe; 903, second non-grooved hollow square steel pipe; 904, second U-shaped pull rod; 905, second upper top plate gasket; 906, second side plate gasket; 907, web pull rod; 10, first cross pull rod; 11, first diagonal pull rod; 12, second cross pull rod; 13, second diagonal pull rod. Detailed implementation mode
[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.
[0028] The following will describe the embodiments according to the overall structure of the present invention.
[0029] Embodiment 1
[0030] Figures 1-5 、 Figure 11 、 Figure 12 and Figure 13 As shown in, Embodiment 1 of the present invention includes a water tank bottom plate 1 that can be assembled, a top plate module 2, a side plate module 3, and a built-in three-meter first truss combination member 8 for enhancing the compressive capacity of the structure, as well as a first cross tie rod 10 and a second inclined tie rod 11. The top plate module 2 and the side plate module 3 are both assembled and welded by combining multiple non-beveled templates 4, single-beveled templates 5, and double-beveled templates 6.
[0031] Among them, the bottom plate 1 and the four side plate modules 3, and the top plate module 2 and the four side plate modules 3 are combined together by welding. The side plate module 3 and the top plate module 2 are both combined modules formed by welding the non-folded edge templates 4, single-beveled templates 5, and double-beveled templates 6 through corresponding folded edge welding. As can be seen above, the side plate module 3 is convenient to assemble, and at the same time simplifies the welding process, greatly avoiding the drawback of water leakage of the water tank caused by welding mistakes.
[0032] The first truss combination member 8 is assembled and welded by a first upper inclined slotted hollow square steel pipe 801, a first lower inclined slotted hollow square steel pipe 802, a first non-slotted hollow square steel pipe 803, a first U-shaped tie rod 804, a first upper top plate gasket 805, and a first side plate gasket 806.
[0033] Specifically, the upper surface of the first lower inclined slotted square steel pipe 802 is connected to the lower surface of the first non-slotted hollow square steel pipe 803 by welding, and the upper surface of the first non-slotted hollow square steel pipe 803 is connected to the lower surface of the first upper inclined slotted hollow square steel pipe 801 by welding.
[0034] Two first U-shaped tie rods 804 are welded and fixed inside the first non-slotted hollow square steel pipe 803, and the first U-shaped tie rod 804 is welded to the surface of the first non-slotted hollow square steel pipe 803, and the U-shaped hole facing direction is flush with the edge of the first non-slotted hollow square steel pipe 803.
[0035] The first upper top plate gasket 805 is welded to the upper surface of the first upper slant-grooved hollow square steel pipe 801, and the first side plate gasket 806 is welded and fixed to the top side of the first upper slant-grooved hollow square steel pipe 801 by welding;
[0036] Finally, it can be seen that the first truss composite member 8 with an internal length of three meters is formed by combined welding and assembly. It is pre-assembled and welded in the factory to form a standard and unified welding and assembly module, a combined welded member, which greatly reduces the influence brought by external factors and welding operations. By using the bending resistance and tensile capacity of the first truss composite member 8 with an internal length of three meters, the overall compressive deformation resistance of the stainless steel water tank side plate is improved. The water pressure on the side is transmitted to the bottom plate 1 and the top plate module 2 through the first truss composite member 8, and balance is formed on the opposite sides in the X and Y directions. Therefore, conventional thin plates can be used, and the internal tension-through reinforcement can be cancelled. The internal activity space is large, which greatly facilitates the subsequent water tank welding, manual cleaning and construction maintenance;
[0037] Specifically, the overall framework is determined by welding the bottom plate 1 and the side plate module 3. The side plate modules 3 are welded and connected through corresponding folded edges, and then combined welding operations are carried out on the middle slotted openings of the first upper slant-grooved hollow square steel pipe 801 and the first lower slant-grooved hollow square steel pipe 802 of the first truss composite member 8 with an internal length of three meters and the folded edges of the side plate module 3;
[0038] The lower bottom surface of the first lower slant-grooved hollow square steel pipe 802 is combined and welded with the lower bottom folded edge of the side plate module 3 and the bottom plate 1. The two first U-shaped tie rods 804 are respectively welded to the folded edges of the side plate module 3, and the first side plate gasket 806 is welded to the side plate module 3 to complete the welding and placement of the first truss composite member 8 with an internal length of three meters;
[0039] During the welding operation of adjacent first truss composite members 8 with an internal length of three meters through the first cross tie rod 10, the two first truss composite members 8 with an internal length of three meters on both sides are welded and connected to the folded edges of the side plate module 3 through the first diagonal tie rod 11, so that the first truss composite member 8 with an internal length of three meters is restricted in multiple directions, and the deformation in the horizontal and vertical directions is greatly inhibited. That is, the first cross tie rod 10 ensures the consistency of the deformation direction of the first truss composite member 8 with an internal length of three meters, avoiding the instability of the structure caused by the different-direction deformation of the first truss composite member 8 with an internal length of three meters, and the first diagonal tie rod 11 inhibits the same-direction deformation of the first truss composite member 8 with an internal length of three meters;
[0040] When the deformation direction is to the left, the right first diagonal tie rod 11 restricts its deformation direction. When the deformation direction is to the right, the left first diagonal tie rod 11 restricts its direction, ensuring the structural stability and deformation resistance of the first truss composite member 8 with an internal length of three meters, and greatly improving the performance of the water tank.
[0041] Embodiment 2
[0042] Figures 6-9 、 Figure 11 、 Figure 12 and Figure 13 As shown in Figure 12 and Figure 13 , this Embodiment 2 includes a water tank bottom plate 1, a top plate module 2, side plate modules 3 that can be assembled and combined, a second truss combined member 9 with an internal length of four meters for enhancing the structural compressive capacity, a second cross bar 12, and a second diagonal bar 13. The top plate module 2 and the side plate modules 3 are each assembled, combined, and welded by multiple non-beveled templates 4, single-beveled templates 5, and double-beveled templates 6;
[0043] Among them, the bottom plate 1 and the four side plate modules 3, as well as the top plate module 2 and the four side plate modules 3, are combined together by welding. The side plate modules 3 and the top plate module 2 are both combined modules formed by welding the non-folded templates 4, single-beveled templates 5, and double-beveled templates 6 with corresponding flanges. As can be seen above, the side plate modules 3 are convenient to assemble, and at the same time, the welding process is simplified, greatly avoiding the drawback of water leakage in the water tank caused by welding errors;
[0044] The second truss combined member 9 is assembled and welded by a second upper slant-grooved hollow square steel pipe 901, a second lower slant-grooved hollow square steel pipe 902, a second non-grooved hollow square steel pipe 903, a second U-shaped tie rod 904, a second upper top plate gasket 905, and a second side plate gasket 906;
[0045] Specifically, the upper surface of the second lower slant-grooved square steel pipe 902 is connected to the lower surface of the second non-grooved hollow square steel pipe 903 by welding, and the upper surface of the second non-grooved hollow square steel pipe 903 is connected to the lower surface of the second upper slant-grooved hollow square steel pipe 901 by welding;
[0046] Two second U-shaped tie rods 904 are welded and fixed inside the second non-grooved hollow square steel pipe 903, and the second U-shaped tie rods 904 are welded to the surface of the second non-grooved hollow square steel pipe 903, with the U-shaped hole facing flush with the edge of the second non-grooved hollow square steel pipe 903.
[0047] The second upper top plate gasket 905 is welded to the upper surface of the second upper slant-grooved hollow square steel pipe 901, and the second side plate gasket 906 is welded and fixed to the top side of the second upper slant-grooved hollow square steel pipe 901 by welding;
[0048] Furthermore, the web tie rods 907 are cross-placed between the two second U-shaped tie rods 904 and connected by welding. Through the welding of the web tie rods 907, the deformation degree of the second U-shaped tie rods 904 is greatly restricted, further strengthening the structure, and finally assembled and welded into the second truss combined member 9 with an internal length of four meters;
[0049] The second truss composite member 9 with an internal length of four meters is formed by combined welding and assembly. It can be pre-fabricated and welded in the factory to form standard and unified welding and assembly modules and composite welded members, greatly reducing the influence brought by external factors and welding operations. By utilizing the bending resistance, tensile capacity, and overall anti-deformation ability of the second truss composite member 9 with an internal length of four meters, the overall compressive resistance and non-deformation ability of the stainless steel water tank side plate are improved. The water pressure on the side is transmitted to the bottom plate 1 and the top plate module 2 through the second truss composite member 9, and balance is formed on the opposite sides in the X and Y directions. Therefore, conventional thin plates can be used, and the internal tension-through reinforcement can be cancelled, providing a large internal activity space, which greatly facilitates subsequent water tank welding, manual cleaning, and construction maintenance.
[0050] Specifically, the overall framework is determined by welding the bottom plate 1 and the side plate module 3. The side plate modules 3 are welded and connected through corresponding flanges, and then the middle slotted openings of the second upper inclined slotted hollow square steel pipe 901 and the second lower inclined slotted hollow square steel pipe 902 of the internally installed second truss composite member 9 are combined and welded with the flanges of the side plate module 3.
[0051] The bottom surface of the second lower inclined slotted hollow square steel pipe 902 is combined and welded with the lower bottom flange of the side plate module 3 and the bottom plate 1. Two second U-shaped tie rods 904 are respectively welded with the flanges of the side plate module 3, and the second side plate gasket 906 is welded with the side plate module 3 to complete the welding and placement of the second truss composite member 9 with an internal length of four meters.
[0052] During the welding operation of adjacent second truss composite members 9 with an internal length of four meters through the second cross tie rod 12, the two layers of second truss composite members 9 on both sides are welded and connected with the flanges of the side plate module 3 through the second inclined tie rod 13, so that the second truss composite member 9 with an internal length of four meters is restricted in multiple directions, and the deformation in the horizontal and vertical directions is greatly inhibited. That is, the second cross tie rod 12 ensures the consistency of the deformation direction of the second truss composite member 9 with an internal length of four meters, avoiding the instability of the structure caused by the different-direction deformation of the second truss composite member 9 with an internal length of four meters, and the second inclined tie rod 13 inhibits the same-direction deformation of the second truss composite member 9 with an internal length of four meters.
[0053] When the deformation direction is to the left, the right second inclined tie rod 13 restricts its deformation direction. When the deformation direction is to the right, the left second inclined tie rod 13 restricts its direction, ensuring the structural stability and deformation resistance ability of the second truss composite member 9 with an internal length of four meters, and greatly improving the performance of the water tank.
[0054] Although embodiments of the present invention have been shown and described, the specific embodiments are merely explanations of the present invention and not limitations thereof. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions and variations that do not make creative contributions to the embodiments as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.
Claims
1. A rectangular combined water tank without tie bars and easy to clean based on a space truss, comprising a bottom plate (1), a top plate module (2) and a side plate module (3), characterized in that: The top plate module (2) and the side plate modules (3) are each assembled and welded by combining multiple groups of templates without bevel edges (4), single bevel edge templates (5), and double bevel edge templates (6). Inside each side plate module (3), multiple groups of truss combination members (7) are evenly distributed. The truss combination members (7) include a first truss combination member (8) and a second truss combination member (9). The bottom plate (1) is fixedly connected to the four side plate modules (3) and the top plate module (2) by welding.
2. The easy-to-clean rectangular combined water tank based on a space truss according to claim 1, wherein: Multiple groups of the templates without bevel edges (4), single bevel edge templates (5), and double bevel edge templates (6) are assembled and welded into a three-meter water tank. Inside the side plate module (3) of the three-meter water tank, multiple groups of first truss combination members (8) are fixedly arranged correspondingly. The first truss combination member (8) includes a first upper slant-grooved hollow square steel pipe (801), a first lower slant-grooved hollow square steel pipe (802), a first non-grooved hollow square steel pipe (803), a first U-shaped pull rod (804), a first upper top plate gasket (805), and a first side plate gasket (806).
3. The easy-to-clean rectangular combined water tank based on a space truss according to claim 2, characterized in that: The first truss combination member (8) is welded from top to bottom by a first upper slant-grooved hollow square steel pipe (801), a first non-grooved hollow square steel pipe (803), and a first lower slant-grooved hollow square steel pipe (802). And two groups of first U-shaped pull rods (804) are fixed inside the first non-grooved hollow square steel pipe (803).
4. The easy-to-clean rectangular combined water tank based on a space truss according to claim 2, characterized in that: Two groups of first upper top plate gaskets (805) are fixed at the top of the first upper slant-grooved hollow square steel pipe (801), and a first side plate gasket (806) is fixed at the inner top end of the first upper slant-grooved hollow square steel pipe (801).
5. The easy-to-clean rectangular combined water tank based on a space truss according to claim 2, wherein: A first cross pull rod (10) is fixed between multiple groups of first truss combination members (8) of each side plate module (3). At one end of each first truss combination member (8), a first diagonal pull rod (11) fixedly connected to the side plate module (3) is fixed.
6. The easy-to-clean rectangular combined water tank based on a space truss according to claim 1, wherein: Multiple groups of the templates without bevel edges (4), single bevel edge templates (5), and double bevel edge templates (6) are assembled and welded into a four-meter water tank. Inside the side plate module (3) of the four-meter water tank, multiple groups of second truss combination members (9) are fixedly arranged correspondingly. The second truss combination member (9) includes a second upper slant-grooved hollow square steel pipe (901), a second lower slant-grooved hollow square steel pipe (902), a second non-grooved hollow square steel pipe (903), a second U-shaped pull rod (904), a second upper top plate gasket (905), a second side plate gasket (906), and a web pull rod (907).
7. The easy-to-clean rectangular combined water tank based on a space truss according to claim 6, characterized in that: The second truss combination member (9) is welded from top to bottom by a second upper slant-grooved hollow square steel pipe (901), a second non-grooved hollow square steel pipe (903), and a second lower slant-grooved hollow square steel pipe (902). And three groups of second U-shaped pull rods (904) are fixed inside the second non-grooved hollow square steel pipe (903).
8. The easy-to-clean rectangular combined water tank based on a space truss according to claim 6, wherein: Two groups of second upper top plate gaskets (905) are fixed at the top of the second upper slant-grooved hollow square steel pipe (901), and a second side plate gasket (906) is fixed at the inner top end of the second upper slant-grooved hollow square steel pipe (901).
9. The easy-to-clean rectangular combined water tank based on a space truss according to claim 7, characterized in that: The web tie rods (907) are cross-fixed between every two groups of the second U-shaped tie rods (904), and the number of web tie rods (907) for each group of the second truss composite members (9) is four groups.
10. The easy-to-clean rectangular combined water tank based on a space truss according to claim 1, characterized in that: The second cross tie rods (12) are fixed between multiple groups of the second truss composite members (9) of each side plate module (3), and the second inclined tie rods (13) fixedly connected to the side plate module (3) are fixed at one end of each of the second truss composite members (9).