Supporting device for one-time pouring of double-layer floating plate and supporting method of supporting device

Abstract

The supporting device comprises a floating plate back-jacking assembly, an anti-skid supporting clamp, a lower triangular supporting assembly, an upper triangular supporting assembly and a right-angle supporting assembly, and the floating plate back-jacking assembly is installed below a bottom-layer floating plate formed through pouring; the anti-skid supporting clamp is installed on the edge of the bottom-layer floating plate formed through pouring. The lower triangular supporting assembly is installed on the bottom-layer floating plate and the anti-skid supporting clamp. The upper triangular supporting assembly is installed on the top of the lower triangular supporting assembly through the adjustable connecting assembly, and a formwork assembly used for pouring a lower-layer floating plate is installed on the upper triangular supporting assembly. The right-angle supporting assembly is installed on the top of the upper triangular supporting assembly through the adjustable connecting assembly and the adjustable supporting assembly, and the formwork assembly used for pouring an upper-layer floating plate is installed at the top end of the right-angle supporting assembly. The supporting device has the beneficial effects that double-layer floating plates can be poured at a time during pouring.

Description

Technical Field

[0001] The invention relates to the technical field of pouring a cantilevered floating slab outside a building, and in particular to a supporting device and a supporting method for pouring a double-layer floating slab at one time. Background Art

[0002] With the integration of architectural art and functional requirements, double-layer cantilever slab structures have appeared in more and more construction projects, which puts higher requirements on construction technology. Bay windows in residential projects or other civil buildings often have two upper and lower floating slabs on the same floor. Normally, they can be cast separately. If they are cast twice, there will be a fracture in the construction joint of the wall column, and the force will be affected. However, this process is cumbersome and affects the construction period; if cast at one time, similar support systems will appear unstable. Therefore, the construction of double-layer cantilever slabs has become a critical and highly concerned task. Therefore, there is an urgent need for a support device that can meet the stable support system of the double-layer floating slab cast at one time. Summary of the invention

[0003] The purpose of the present invention is to overcome the above problems existing in the prior art, and to provide a supporting device for one-time casting of a double-layer floating slab, and at the same time to provide a supporting method for one-time casting of a double-layer floating slab.

[0004] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0005] A supporting device for one-time pouring of a double-layer floating slab, characterized by comprising:

[0006] A floating plate return assembly, which is installed below the bottom floating plate that has been cast;

[0007] An anti-skid support fixture, which is installed on the edge of the bottom floating board that has been cast;

[0008] A lower triangular support assembly, wherein the lower triangular support assembly is installed on the bottom floating plate and the anti-slip support fixture;

[0009] An upper triangular support assembly, wherein the upper triangular support assembly is mounted on the top of the lower triangular support assembly through an adjustable connection assembly, and a formwork assembly for pouring the lower floating slab is mounted on the upper triangular support assembly;

[0010] A right-angle support assembly is installed on the top of the upper triangular support assembly through an adjustable connection assembly and an adjustable support assembly, and a template assembly for pouring the upper floating slab is installed on the top of the right-angle support assembly.

[0011] Among them, the floating board returning to the top assembly includes a pad, a supporting steel pipe, an adjustable U-shaped top support, and a first wooden square. The pad is placed flat on the floating board below the bottom floating board or on the ground, the supporting steel pipe stands on the top of the pad, the bottom of the adjustable U-shaped top support is inserted into the supporting steel pipe, and the first wooden square is clamped between the adjustable U-shaped top support and the bottom floating board.

[0012] Among them, the anti-slip support clamp includes a support block with a right-angled trapezoidal longitudinal section, a movable splint, a fastening bolt, and a baffle. The top of the support block is provided with a concave limit groove, and the front of the support block is fixedly connected with an upper and lower parallel mounting plate and a fixed splint. The fastening bolt is screwed on the mounting plate, and the movable splint is sleeved on the bottom of the fastening bolt. The fastening bolt is tightened to make the movable splint cooperate with the fixed splint to clamp the edge of the bottom bay window, and the baffle is installed at the end of the mounting plate away from the support block.

[0013] Wherein, the lower triangle support assembly includes a first vertical tube, a first transverse tube, a first oblique tube, a first connecting tube, and a limit block. The head of the first transverse tube is welded to the head of the first oblique tube, the tail end of the first transverse tube is welded to the tail end of the first oblique tube and the first vertical tube, an angle less than 45° is formed between the first oblique tube and the first transverse tube, the first transverse tube and the first vertical tube are perpendicular to each other, and the bottom end of the first vertical tube is flush with the bottom end of the first transverse tube, the first connecting tube is connected to the first vertical tube with a fastener, the limit block is welded to the first transverse tube, the welding point between the first vertical tube and the first transverse tube is stuck in the limit groove, the limit block is in contact with the baffle, and two pairs of first mounting holes are arranged on the upper part of the first vertical tube.

[0014] Wherein, the upper triangular support assembly includes a second vertical pipe, a second transverse pipe, a second oblique pipe, and a second connecting pipe. The tail end of the second transverse pipe is vertically welded to one side of the second vertical pipe. The second oblique pipe is welded between the bottom end of the second transverse pipe and the second vertical pipe. The second connecting pipe is connected to the middle part of the second vertical pipe by a fastener. The lower part of the second vertical pipe is connected to the upper part of the first vertical pipe by an adjustable connecting assembly. The lower part and the upper part of the second vertical pipe are respectively provided with two pairs of first mounting holes.

[0015] Wherein, the right-angle support assembly includes a third vertical pipe, a third horizontal pipe, and a third connecting pipe. The third horizontal pipe is vertically welded to one side of the top of the third vertical pipe. The top of the third horizontal pipe is flush with the top of the third vertical pipe. The lower part of the third connecting pipe is connected to the upper part of the second vertical pipe through an adjustable connecting assembly. The lower part of the third vertical pipe is provided with two pairs of first mounting holes.

[0016] Among them, the adjustable connecting assembly includes a sleeve, a half-thread bolt, and a hexagonal nut. The sleeve is provided with multiple pairs of evenly distributed second mounting holes. The half-thread bolt is inserted into the connected and coaxial first mounting hole and second mounting hole, and the hexagonal nut is screwed on the half-thread bolt.

[0017] Among them, the adjustable support assembly includes two half-thread screws, a two-way internal threaded tube, and a pulley. The two half-thread screws are respectively screwed with the two-way internal threaded tube. The pulley is installed on the end of the half-thread bolt away from the two-way internal threaded tube by a spring pin. A first slide groove is opened on the upper part of the second vertical pipe, and a plurality of evenly distributed first pin holes are opened on the side wall of the first slide groove; a second slide groove is opened in the middle part of the third horizontal pipe, and a plurality of evenly distributed second pin holes are opened on the side wall of the second slide groove, and the spring pin is plug-in-pull-matched with the first pin hole or the second pin hole.

[0018] Among them, multiple pairs of first inclined rods arranged in sequence are installed between the upper triangular support assembly and the lower triangular support assembly, and multiple pairs of second inclined rods arranged in sequence are installed between the upper triangular support assembly and the right-angle support assembly.

[0019] A supporting method for one-time pouring of a double-layer floating slab, using the above-mentioned supporting device, comprises the following steps:

[0020] Step 1: Install the floating board top return assembly under the cast bottom floating board;

[0021] Step 2: Install a plurality of evenly distributed anti-skid support fixtures on the edge of the cast bottom floating plate, and place the lower triangular support assembly on the bottom floating plate and the anti-skid support fixtures;

[0022] Step 3: Use the adjustable connection assembly to install the upper triangular support assembly on the lower triangular support assembly, and use the adjustable connection assembly to adjust the installation height of the upper triangular support assembly, and install the formwork assembly for pouring the lower floating slab on the upper triangular support assembly;

[0023] Step 4: Use the adjustable connection assembly to install the right-angle support assembly on the upper triangular support assembly, and use the adjustable connection assembly to adjust the installation height of the right-angle support assembly, and install the formwork assembly for pouring the upper floating slab on the top of the right-angle support assembly;

[0024] Step 5. After confirming the size and position of the lower triangular support assembly, the upper triangular support assembly, and the right-angle support assembly, install the first diagonal rod between the upper triangular support assembly and the lower triangular support assembly for fixation, and install the second diagonal rod between the lower triangular support assembly and the right-angle support assembly for fixation.

[0025] The beneficial effects of the present invention are as follows: a height-adjustable double-layer formwork support structure is formed by cooperating an anti-slip support clamp, a lower triangular support assembly, an upper triangular support assembly, a right-angle support assembly, and an adjustable connection assembly; a group of formwork assemblies are respectively installed on the upper triangular support assembly and the right-angle support assembly, so that double-layer floating panels can be poured at one time during pouring; the floating panel return assembly is used to improve the support strength of the bottom floating panel to prevent the weight during pouring from falling on the bottom floating panel and breaking the bottom floating panel; the adjustable connection assembly is used to adjust the height of the upper triangular support assembly and the right-angle support assembly up and down to be suitable for the pouring of double-layer floating panels of different specifications, so that the support device has universality, turnover and economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1 It is a schematic structural diagram of the supporting device in the present invention;

[0028] Figure 2 yes Figure 1 Schematic diagram of the structure in the middle AA direction;

[0029] Figure 3 It is a schematic structural diagram of a side view of a floating plate return assembly in the present invention;

[0030] Figure 4 It is a schematic structural diagram of the side view of the anti-slip support clamp in the present invention;

[0031] Figure 5 It is a schematic diagram of the structure of the anti-slip support clamp in the present invention from a rear view;

[0032] Figure 6 It is a schematic structural diagram of a side view of the lower triangular support assembly in the present invention;

[0033] Figure 7 It is a schematic structural diagram of the upper triangular support assembly in the present invention from a side view;

[0034] Figure 8 It is a schematic structural diagram of a right-angle support assembly in the present invention from a side view;

[0035] Fig. 9 is a schematic diagram of the structure of the adjustable connection assembly in the present invention from a side view;

[0036] Fig.10 is a schematic structural diagram of the adjustable support assembly in the present invention from a side view;

[0037] Fig.11 It is a schematic structural diagram of a side view of a template assembly in the present invention;

[0038] Explanation of reference numerals in the figure: floating board return top assembly 1, pad 11, support steel pipe 12, adjustable U-shaped top support 13, first wooden square 14, anti-slip support fixture 2, support block 21, movable splint 22, fastening bolt 23, baffle 24, limit groove 25, mounting plate 26, fixed splint 27, lower triangular support assembly 3, first vertical pipe 31, first horizontal pipe 32, first oblique pipe 33, first connecting pipe 34, limit block 35, upper triangular support assembly 4, second vertical pipe 41, second horizontal pipe 42, second oblique pipe 43, second connecting pipe 44 , first pin hole 45, right-angle support assembly 5, third vertical pipe 51, third horizontal pipe 52, third connecting pipe 53, second pin hole 54, adjustable connecting assembly 6, sleeve 61, half-thread bolt 62, hexagonal nut 63, second mounting hole 64, adjustable support assembly 7, half-thread screw 71, two-way internal threaded pipe 72, pulley 73, spring pin 74, first mounting hole 8, template assembly 9, second wooden square 91, bottom template 92, side template 93, bottom floating board 100, first diagonal rod 200, second diagonal rod 300. DETAILED DESCRIPTION

[0039] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0040] like Figures 1 to 11 As shown, a supporting device for one-time pouring of a double-layer floating slab comprises:

[0041] The floating board returning to the top assembly is installed under the cast bottom floating board; specifically, the floating board returning to the top assembly 1 includes a pad 11, a supporting steel pipe 12, an adjustable U-shaped top support 13, and a first wooden square 14. The pad 11 is placed flat on the floating board under the bottom floating board 100 or on the ground, the supporting steel pipe 12 stands on the top of the pad 11, the bottom of the adjustable U-shaped top support 13 is inserted into the supporting steel pipe 12, and the first wooden square 14 is clamped between the adjustable U-shaped top support 13 and the bottom floating board 100.

[0042] Anti-skid support clamp, the anti-skid support clamp is installed on the edge of the cast bottom floating board; specifically, the anti-skid support clamp 2 includes a support block 21 with a right-angled trapezoidal longitudinal section, a movable splint 22, a fastening bolt 23, and a baffle 24. A concave limit groove 25 is provided on the top of the support block 21, and the front of the support block 21 is fixedly connected with an upper and lower parallel mounting plate 26 and a fixed splint 27. The fastening bolt 23 is screwed on the mounting plate 26, and the movable splint 22 is sleeved on the bottom of the fastening bolt 23. Tightening the fastening bolt 23 makes the movable splint 22 cooperate with the fixed splint 27 to clamp the edge of the bottom floating window 100, and the baffle 24 is installed on the end of the mounting plate 26 away from the support block 21.

[0043] The lower triangular support assembly is installed on the bottom floating plate and the anti-slip support fixture; specifically, the lower triangular support assembly 3 includes a first vertical tube 31, a first transverse tube 32, a first oblique tube 33, a first connecting tube 34, and a limit block 35. The head of the first transverse tube 32 is welded to the head of the first oblique tube 33, the tail end of the first transverse tube 32 and the tail end of the first oblique tube 33 are welded to the first vertical tube 31, and an angle less than 45° is formed between the first oblique tube 33 and the first transverse tube 32. The first transverse tube 32 and the first vertical tube 31 are perpendicular to each other, and the bottom end of the first vertical tube 31 is flush with the bottom end of the first transverse tube 32. The first connecting tube 34 is connected to the first vertical tube 31 with a fastener, and the limit block 35 is welded to the first transverse tube 32. The welding point between the first vertical tube 31 and the first transverse tube 32 is stuck in the limit groove 25, and the limit block 35 abuts against the baffle 24.

[0044] An upper triangular support assembly is installed on the top of the lower triangular support assembly through an adjustable connecting assembly, and a formwork assembly 9 for pouring the lower floating slab is installed on the upper triangular support assembly; specifically, the upper triangular support assembly 4 includes a second vertical pipe 41, a second horizontal pipe 42, a second inclined pipe 43, and a second connecting pipe 44. The tail end of the second horizontal pipe 42 is vertically welded to one side of the second vertical pipe 41, the second inclined pipe 43 is welded between the bottom end of the second horizontal pipe 42 and the second vertical pipe 41, the second connecting pipe 44 is connected to the middle part of the second vertical pipe 41 by a fastener, and the lower part of the second vertical pipe 41 is connected to the upper part of the first vertical pipe 31 by an adjustable connecting assembly.

[0045] Right angle support assembly, the right angle support assembly is installed on the top of the upper triangular support assembly through an adjustable connection assembly and an adjustable support assembly, and a formwork assembly for pouring the upper floating slab is installed on the top of the right angle support assembly; specifically, the right angle support assembly 5 includes a third vertical pipe 51, a third horizontal pipe 52, and a third connecting pipe 53, the third horizontal pipe is vertically welded to one side of the top of the third vertical pipe, the top of the third horizontal pipe is flush with the top of the third vertical pipe, and the lower part of the third connecting pipe is connected to the upper part of the second vertical pipe through an adjustable connection assembly.

[0046] The adjustable connection assembly 6 includes a sleeve 61, a half-thread bolt 62, and a hexagonal nut 63. The sleeve 61 is provided with multiple pairs of evenly distributed second mounting holes 64. The upper part of the first vertical pipe 31, the lower part of the second vertical pipe 41, the upper part of the second vertical pipe 41, and the lower part of the third vertical pipe are respectively provided with two pairs of first mounting holes 8. The half-thread bolt 62 is inserted into the connected and coaxial first mounting hole 8 and second mounting hole 64, and the hexagonal nut 63 is screwed on the half-thread bolt 62.

[0047] The adjustable support assembly 7 includes two half-thread screws 71, a two-way internal threaded tube 72, and a pulley 73. The two half-thread screws 71 are respectively screwed with the two-way internal threaded tube 72. The pulley 73 is installed at the end of the half-thread bolt 71 away from the two-way internal threaded tube 72 by means of a spring pin 74. A first slide groove is provided at the upper part of the second vertical pipe 41, and a plurality of evenly distributed first pin holes 45 are provided on the side wall of the first slide groove; a second slide groove is provided in the middle part of the third horizontal pipe 52, and a plurality of evenly distributed second pin holes 54 are provided on the side wall of the second slide groove. The spring pin 74 is plug-in-pull-matched with the first pin hole 45 or the second pin hole 54.

[0048] The template assembly 9 includes a second wooden square 91, a bottom template 92, and a side template 93. The second wooden square 91 is placed on the second transverse tube 42 or the third transverse tube 52. The bottom template 92 is nailed to the top of the second wooden square 91, and the side template 93 is nailed to the edge of the bottom template 92.

[0049] In order to further improve the overall stability of the support device, multiple pairs of first diagonal rods 200 arranged in sequence are installed between the upper triangular support assembly 4 and the lower triangular support assembly 5, and multiple pairs of second diagonal rods 300 arranged in sequence are installed between the upper triangular support assembly 5 and the right-angle support assembly 6.

[0050] A supporting method for one-time pouring of a double-layer floating slab, using the above-mentioned supporting device, comprises the following steps:

[0051] Step 1: Install the floating board top return assembly under the cast bottom floating board;

[0052] Step 2: Install a plurality of evenly distributed anti-skid support fixtures on the edge of the cast bottom floating plate, and place the lower triangular support assembly on the bottom floating plate and the anti-skid support fixtures;

[0053] Step 3: Use the adjustable connection assembly to install the upper triangular support assembly on the lower triangular support assembly, and use the adjustable connection assembly to adjust the installation height of the upper triangular support assembly, and install the formwork assembly for pouring the lower floating slab on the upper triangular support assembly;

[0054] Step 4: Use the adjustable connection assembly to install the right-angle support assembly on the upper triangular support assembly, and use the adjustable connection assembly to adjust the installation height of the right-angle support assembly, and install the formwork assembly for pouring the upper floating slab on the top of the right-angle support assembly;

[0055] Step 5. After confirming the size and position of the lower triangular support assembly, the upper triangular support assembly, and the right-angle support assembly, install the first diagonal rod between the upper triangular support assembly and the lower triangular support assembly for fixation, and install the second diagonal rod between the lower triangular support assembly and the right-angle support assembly for fixation.

[0056] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A supporting device for one-time pouring of a double-layer floating slab, characterized in that: include: A floating plate return assembly, which is installed below the bottom floating plate that has been cast; An anti-skid support fixture, which is installed on the edge of the bottom floating board that has been cast; A lower triangular support assembly, wherein the lower triangular support assembly is installed on the bottom floating plate and the anti-slip support fixture; An upper triangular support assembly, wherein the upper triangular support assembly is mounted on the top of the lower triangular support assembly through an adjustable connection assembly, and a formwork assembly for pouring the lower floating slab is mounted on the upper triangular support assembly; A right-angle support assembly is installed on the top of the upper triangular support assembly through an adjustable connection assembly and an adjustable support assembly, and a template assembly for pouring the upper floating slab is installed on the top of the right-angle support assembly.

2. The supporting device according to claim 1, characterized in that: The floating board returning assembly includes a pad, a supporting steel pipe, an adjustable U-shaped top support, and a first wooden square. The pad is placed flat on the floating board below the bottom floating board or on the ground, the supporting steel pipe stands on the top of the pad, the bottom of the adjustable U-shaped top support is inserted into the supporting steel pipe, and the first wooden square is clamped between the adjustable U-shaped top support and the bottom floating board.

3. The supporting device according to claim 1, characterized in that: The anti-slip support clamp includes a support block with a right-angled trapezoidal longitudinal section, a movable splint, a fastening bolt, and a baffle. The top of the support block is provided with a concave limit groove, and the front of the support block is fixedly connected with an upper and lower parallel mounting plate and a fixed splint. The fastening bolt is screwed on the mounting plate, and the movable splint is sleeved on the bottom of the fastening bolt. The fastening bolt is tightened to make the movable splint cooperate with the fixed splint to clamp the edge of the bottom bay window, and the baffle is installed on the end of the mounting plate away from the support block.

4. The supporting device according to claim 3, characterized in that: The lower triangle support assembly includes a first vertical tube, a first transverse tube, a first oblique tube, a first connecting tube, and a limit block. The head of the first transverse tube is welded to the head of the first oblique tube, the tail end of the first transverse tube and the tail end of the first oblique tube are welded to the first vertical tube, an angle less than 45° is formed between the first oblique tube and the first transverse tube, the first transverse tube and the first vertical tube are perpendicular to each other, and the bottom end of the first vertical tube is flush with the bottom end of the first transverse tube, the first connecting tube is connected to the first vertical tube by a fastener, the limit block is welded to the first transverse tube, the welding point between the first vertical tube and the first transverse tube is stuck in the limit groove, the limit block is in contact with the baffle, and two pairs of first mounting holes are arranged on the upper part of the first vertical tube.

5. The supporting device according to claim 4, characterized in that: The upper triangular support assembly includes a second vertical pipe, a second horizontal pipe, a second oblique pipe, and a second connecting pipe. The tail end of the second horizontal pipe is vertically welded to one side of the second vertical pipe. The second oblique pipe is welded between the bottom end of the second horizontal pipe and the second vertical pipe. The second connecting pipe is connected to the middle part of the second vertical pipe by a fastener. The lower part of the second vertical pipe is connected to the upper part of the first vertical pipe by an adjustable connecting assembly. The lower part and the upper part of the second vertical pipe are respectively provided with two pairs of first mounting holes.

6. The supporting device according to claim 5, characterized in that: The right-angle support assembly includes a third vertical pipe, a third horizontal pipe, and a third connecting pipe. The third horizontal pipe is vertically welded to one side of the top of the third vertical pipe. The top of the third horizontal pipe is flush with the top of the third vertical pipe. The lower part of the third connecting pipe is connected to the upper part of the second vertical pipe through an adjustable connecting assembly. The lower part of the third vertical pipe is provided with two pairs of first mounting holes.

7. The supporting device according to claim 6, characterized in that: The adjustable connection assembly includes a sleeve, a half-thread bolt, and a hexagonal nut. The sleeve is provided with a plurality of pairs of evenly distributed second mounting holes. The half-thread bolt is inserted into the connected and coaxial first mounting hole and the second mounting hole, and the hexagonal nut is screwed onto the half-thread bolt.

8. The supporting device according to claim 6, characterized in that: The adjustable support assembly includes two half-thread screws, a bidirectional internal threaded tube, and a pulley. The two half-thread screws are respectively screwed with the bidirectional internal threaded tube. The pulley is installed on the end of the half-thread bolt away from the bidirectional internal threaded tube by a spring pin. A first slide groove is opened on the upper part of the second vertical pipe, and a plurality of evenly distributed first pin holes are opened on the side wall of the first slide groove; a second slide groove is opened in the middle part of the third horizontal pipe, and a plurality of evenly distributed second pin holes are opened on the side wall of the second slide groove. The spring pin is plug-in-pull-matched with the first pin hole or the second pin hole.

9. The supporting device according to claim 1, characterized in that: A plurality of pairs of first diagonal tie rods arranged in sequence are installed between the upper triangular support assembly and the lower triangular support assembly, and a plurality of pairs of second diagonal tie rods arranged in sequence are installed between the upper triangular support assembly and the right-angle support assembly.

10. A method for supporting a double-layer floating slab during one-time casting, using the supporting device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Install the floating board top return assembly under the cast bottom floating board; Step 2: Install a plurality of evenly distributed anti-skid support fixtures on the edge of the cast bottom floating plate, and place the lower triangular support assembly on the bottom floating plate and the anti-skid support fixtures; Step 3: Use the adjustable connection assembly to install the upper triangular support assembly on the lower triangular support assembly, and use the adjustable connection assembly to adjust the installation height of the upper triangular support assembly, and install the formwork assembly for pouring the lower floating slab on the upper triangular support assembly; Step 4: Use the adjustable connection assembly to install the right-angle support assembly on the upper triangular support assembly, and use the adjustable connection assembly to adjust the installation height of the right-angle support assembly, and install the formwork assembly for pouring the upper floating slab on the top of the right-angle support assembly; Step 5. After confirming the size and position of the lower triangular support assembly, the upper triangular support assembly, and the right-angle support assembly, install the first diagonal rod between the upper triangular support assembly and the lower triangular support assembly for fixation, and install the second diagonal rod between the lower triangular support assembly and the right-angle support assembly for fixation.

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