A sliding mode system reinforcing and fastening structure and its installation method

Abstract

The application discloses a sliding formwork system reinforcing and rapid mounting and dismounting structure and a mounting method thereof, and relates to the technical field of sliding formwork system construction. The top of the base is fixed with a supporting rod, the top of the supporting rod is provided with an extension rod, the top of the extension rod is connected with a connecting frame, the upper and lower ends of the extension rod and the upper end of the supporting rod are all provided with butt joint assemblies, the positioning assembly is arranged at the end of the supporting rod and the extension rod, and the positioning assembly comprises a positioning groove. When the application is mounted, the extension rod and the supporting rod can be quickly butt jointed and limited through the positioning block and the positioning groove, the connecting rigidity is enhanced through the positioning pin, the driving shaft is rotated subsequently, the linkage clamping block is locked from the inside of the positioning groove, the design realizes tool-free dismounting of the supporting rod and the extension rod, significantly improves the modular assembly efficiency, and can also be used for assembling between the supporting rods or between the supporting rods and the connecting frame on the top, and adapts to the expansion connection demand of multiple specifications.

Description

Technical Field

[0001] This invention relates to the field of slipform system construction technology, specifically to a slipform system reinforcement and rapid installation / disassembly structure and its installation method. Background Technology

[0002] Slip-form systems are formwork systems used in concrete structure construction. They achieve continuous pouring by sliding and lifting the formwork. my country has a high level of construction expertise in this area and has used them to construct a large number of structures and high-rise civil buildings.

[0003] For example, patent CN113417455B discloses a self-reinforcing support rod for slipform construction. The extended connecting plate of this invention is installed on the upper side of the bottom connecting plate via bolts and nuts, which facilitates the installation of extended fixing frames as needed during use, thereby increasing the overall height of the device. However, in actual disassembly and assembly of multiple extended fixing frames, it is time-consuming and laborious to tighten the bolts and nuts on each frame individually using other tools. Furthermore, as the height of the extended connecting plate increases, the overall stability gradually decreases. Summary of the Invention

[0004] The purpose of this invention is to provide a reinforcement and rapid installation / disassembly structure for slipform systems and its installation method, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a slipform system reinforcement and rapid installation / disassembly structure and its installation method, comprising a base and a positioning component. A support rod is fixed to the top of the base, and an extension rod is provided at the top of the support rod. A connecting frame is connected to the top of the extension rod, and docking components are provided at both ends of the extension rod and the upper end of the support rod. The positioning component is located at the ends of the support rod and the extension rod, and the positioning component includes a positioning groove. A positioning groove is opened at the bottom of the extension rod. A positioning block is fixed to the top of both the extension rod and the support rod, and a drive shaft is rotatably connected inside the upper ends of both the extension rod and the support rod. A gear is fixed to one end of the drive shaft, and a first rack meshes with one side of the gear. A transmission frame is mounted on the top of the first rack, and a connecting rod is rotatably connected to the top of the transmission frame. A locking block is rotatably connected to the end of the connecting rod.

[0006] Furthermore, the locking block engages with the extension rod via a positioning groove, and the locking block and the positioning block are slidably connected.

[0007] Furthermore, the docking assembly includes a docking base plate, and the upper outer sides of the support rod and the extension rod are both fixed with the docking base plate, and the outer end of the docking base plate is provided with a positioning hole.

[0008] Furthermore, a docking top plate is installed on one side of the bottom of the extension rod, and a positioning pin is fixed at the bottom outer end of the docking top plate, with the positioning pin corresponding to the positioning hole one by one. A reinforcing rib is installed on one side of both the docking bottom plate and the docking top plate.

[0009] Furthermore, a reinforcing component is provided on one side of the support rod and the extension rod, and the reinforcing component includes a second rack. The second rack is meshed on the other side of the gear, and a sleeve is fixed to the bottom of the second rack. A retaining plate is slidably connected inside the retaining plate, and an adjusting plate is fixed to one end of the retaining plate.

[0010] Furthermore, an adjustment hole is provided on one side of the adjustment plate, and a support plate is sleeved on the outer side of the adjustment plate. A groove is provided at the bottom of the support plate, and a protrusion is fixed at the top of the support plate.

[0011] Furthermore, a limiting frame is installed on the upper end of one side of the support plate, and a pin is slidably connected inside the limiting frame. A retaining ring is fixed on the outer side of the middle part of the pin, and a return spring is connected to one side of the retaining ring, and the return spring abuts against the limiting frame.

[0012] Furthermore, stabilizing components are provided at both ends of the drive shaft, and the stabilizing components include compression springs. One end of the compression spring is connected to a slip ring, and the slip ring is slidably connected to the drive shaft. A first side toothed ring is fixed to the outer side of one end of the drive shaft.

[0013] Furthermore, a second side toothed ring is fixed inside the upper end of both the support rod and the extension rod, and the second side toothed ring matches the first side toothed ring.

[0014] Furthermore, the installation method for the slipform system reinforcement and quick-assembly structure, applied to the slipform system reinforcement and quick-assembly structure, includes the following steps: Step 1: Secure the base and the bottom support plate to the concrete floor using bolts; Step 2: Push and rotate the drive shaft so that the gear drives the transmission frame to pull the connecting rod through the first rack, and retract the locking block into the positioning block to avoid it. Then, the positioning block and positioning groove facilitate the quick docking between the extension rod and the support rod. The positioning pin on the docking top plate will be inserted into the positioning hole on the docking bottom plate. Step 3: Insert the adjusting plate into the upper end of the support plate and pull the pin to avoid it. After the locking plate is inserted into the side opening of the support rod or extension rod, release the hand. The return spring will push the retaining ring to insert the pin into the adjusting hole on the adjusting plate, quickly locking the support plate and the adjusting plate. Step 4: Reverse the drive shaft to make the locking block extend out of the positioning block and engage with both sides of the positioning groove. At the same time, insert the locking sleeve into the locking plate through the second rack to fix the position of the adjusting plate. After releasing, the compression spring will push the slip ring and squeeze the drive shaft, so that the first side gear ring and the second side gear ring engage to lock the rotation angle of the drive shaft. Step 5: Similarly, repeat the above operations to assemble multiple extension rods or to assemble extension rods with connecting frames. The connection between support plates can be limited by grooves and protrusions. In use, the triangular structure formed by the support plates, support rods, extension rods and the ground can be used to enhance the overall stability. Step Six: During disassembly, simply rotating the drive shaft in the opposite direction will simultaneously move the first and second racks back, thereby automatically disconnecting the locking operation of the positioning component and the reinforcing component, improving the overall disassembly and assembly efficiency.

[0015] This invention provides a reinforcement and rapid assembly / disassembly structure for slipform systems and its installation method, which has the following beneficial effects: 1. During installation, the present invention can quickly connect and limit the extension rod and the support rod through the positioning block and positioning groove, and enhance the connection rigidity through the positioning pin. Subsequently, rotating the drive shaft will trigger the locking block to lock it from inside the positioning groove. This design enables tool-free disassembly and assembly of the support rod and the extension rod, significantly improving the modular assembly efficiency. It can also be used for assembly between support rods or between the support rod and the top connecting frame, adapting to multiple specifications of extended connection requirements.

[0016] 2. When extending the extension rod, the present invention can enhance the overall stability by utilizing the triangular structure formed by the support plate, the support rod, the extension rod, and the ground. At the same time, the support plate and the adjustment plate can be quickly connected by a pin spring locking system, and the adjustment plate can be limited by the movement of the drive shaft linkage sleeve between the support rod and the extension rod. This structure enables rapid assembly and rigidity enhancement of the multi-level support frame, and the triangular configuration optimizes the anti-overturning stability.

[0017] 3. The axial pressing drive shaft self-locking mechanism of this invention compresses the spring in the non-working state to engage the two side toothed rings to prevent misoperation. During operation, pressing the drive shaft separates the side toothed rings to unlock and rotate. At the same time, during operation, rotating the drive shaft in the opposite direction can automatically disconnect the connection between the positioning component and the reinforcement component without adding any additional operation steps. This design deeply integrates foolproof protection and one-click decoupling, eliminates the cumbersomeness of multi-step disassembly, and ensures a dynamic balance between assembly efficiency and structural safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a sliding mode system reinforcement and rapid assembly / disassembly structure according to the present invention; Figure 2This is a three-dimensional structural diagram of the docking component of a sliding mode system reinforcement and rapid assembly / disassembly structure according to the present invention; Figure 3 This is a three-dimensional structural diagram of a stable component of a sliding mode system reinforcement and rapid assembly / disassembly structure according to the present invention; Figure 4 This is a schematic diagram of the positioning component structure of a sliding mode system reinforcement and rapid assembly / disassembly structure according to the present invention; Figure 5 This is a schematic diagram of the reinforcement component structure of a sliding mode system reinforcement and rapid assembly / disassembly structure according to the present invention; Figure 6 This is a schematic diagram of the limiting frame structure of a sliding formwork system reinforcement and quick assembly / disassembly structure according to the present invention.

[0019] In the diagram: 1. Base; 2. Support rod; 3. Extension rod; 4. Connecting frame; 5. Docking assembly; 501. Docking base plate; 502. Positioning hole; 503. Docking top plate; 504. Positioning pin; 505. Reinforcing rib; 6. Positioning assembly; 601. Positioning groove; 602. Positioning block; 603. Drive shaft; 604. Gear; 605. First rack; 606. Transmission frame; 607. Connecting rod; 608. Locking pin. 7. Reinforcing component; 701. Second rack; 702. Sleeve; 703. Clamping plate; 704. Adjusting plate; 705. Adjusting hole; 706. Support plate; 707. Groove; 708. Protrusion; 709. Limiting frame; 710. Pin; 711. Retaining ring; 712. Return spring; 8. Stabilizing component; 801. Compression spring; 802. Slip ring; 803. First side toothed ring; 804. Second side toothed ring. Detailed Implementation

[0020] Please see Figures 1 to 4This invention provides a technical solution: a slipform system reinforcement and quick installation / disassembly structure and its installation method, comprising a base 1 and a positioning component 6. A support rod 2 is fixed to the top of the base 1, and an extension rod 3 is provided on the top of the support rod 2. A connecting frame 4 is connected to the top of the extension rod 3, and docking components 5 are provided at both the upper and lower ends of the extension rod 3 and the upper end of the support rod 2. The positioning component 6 is located at the ends of the support rod 2 and the extension rod 3, and the positioning component 6 includes a positioning groove 601. A positioning groove 601 is opened at the bottom of the extension rod 3. Positioning blocks 602 are fixed to the top of both the extension rod 3 and the support rod 2, and a drive shaft 603 is rotatably connected inside the upper ends of both the extension rod 3 and the support rod 2. A gear 604 is fixed to one end of the drive shaft 603, and a first rack 6 meshes with one side of the gear 604. 05. A transmission frame 606 is mounted on the top of the first rack 605, and a connecting rod 607 is rotatably connected to the top of the transmission frame 606. A locking block 608 is rotatably connected to the end of the connecting rod 607. The locking block 608 is engaged with the extension rod 3 through the positioning groove 601, and the locking block 608 is slidably connected with the positioning block 602. The docking assembly 5 includes a docking base plate 501. The upper outer sides of the support rod 2 and the extension rod 3 are both fixed with the docking base plate 501, and the outer end of the docking base plate 501 is provided with a positioning hole 502. A docking top plate 503 is mounted on one side of the bottom of the extension rod 3, and a positioning pin 504 is fixed on the outer bottom of the docking top plate 503. The positioning pin 504 corresponds one-to-one with the positioning hole 502. A reinforcing rib 505 is mounted on one side of both the docking base plate 501 and the docking top plate 503. The specific operation is as follows: When the extension rod 3 needs to be installed on the support rod 2, or when multiple support rods 2 need to be connected and assembled, simply rotate the drive shaft 603 so that the gear 604 drives the transmission frame 606 to pull the connecting rod 607 through the first rack 605. During this process, since the positioning block 602 limits and guides the locking block 608, the locking block 608 can be retracted into the positioning block 602 for avoidance. At this time, the positioning block 602 and the positioning groove 601 facilitate the quick docking between the extension rod 3 and the support rod 2, and perform initial limiting. After insertion, the drive shaft 603 is reversed. Similarly, The first rack 605, transmission frame 606, and connecting rod 607 can push the locking block 608, causing it to extend from the positioning block 602 and engage with both sides of the positioning groove 601, quickly locking it in place. Therefore, no other tools are needed during assembly and disassembly, making it very convenient. At the same time, when connecting the extension rod 3 and the connecting frame 4, the locking block 608 can also limit the upper end of the connecting frame 4, thereby improving the adaptability of the quick assembly and disassembly structure. Furthermore, after installation, the positioning pin 504 on the docking top plate 503 will be inserted into the positioning hole 502 on the docking bottom plate 501, further enhancing the overall connection strength.

[0021] Please see Figures 3 to 6A reinforcing component 7 is provided on one side of the support rod 2 and the extension rod 3. The reinforcing component 7 includes a second rack 701. The second rack 701 is meshed on the other side of the gear 604. A sleeve 702 is fixed at the bottom of the second rack 701. A retaining plate 703 is slidably connected inside the retaining plate 702. An adjusting plate 704 is fixed at one end of the retaining plate 703. An adjusting hole 705 is opened on one side of the adjusting plate 704. A support plate 706 is sleeved on the outside of the adjusting plate 704. A groove 707 is opened at the bottom of the support plate 706. A protrusion 708 is fixed at the top of the support plate 706. A limiting frame 709 is installed at the upper end of one side of the support plate 706. A pin 710 is slidably connected inside the limiting frame 709. A retaining ring 711 is fixed on the outer side of the middle part of the pin 710. A return spring 712 is connected to one side of the retaining ring 711. The return spring 712 abuts against the limiting frame 709. The specific operation is as follows: When assembling multiple extension rods 3 to make the whole structure too high, the triangular structure formed by the support plate 706, the support rod 2, the extension rod 3, and the ground can be used to enhance the overall stability. During the assembly process, simply align the groove 707 at the bottom of the support plate 706 with the protrusion 708 at the top of the lower support plate 706, then insert the adjusting plate 704 into the upper part of the support plate 706, and pull the pin 710 to avoid it. When the locking plate 703 is inserted into the side opening of the support rod 2 or the extension rod 3, release the hand, and the return spring 712 will push the retaining ring 711 to insert the pin 710 into the adjusting hole 705 on the adjusting plate 704, quickly locking the support plate 706 and the adjusting plate 704. After that, when the drive shaft 603 is rotated, the second rack 701 will insert the sleeve 702 into the locking plate 703 to fix the position of the adjusting plate 704, which is very convenient during assembly.

[0022] Please see Figure 3 Stabilizing components 8 are provided at both ends of the drive shaft 603, and the stabilizing components 8 include compression springs 801. One end of the compression springs 801 is connected to a slip ring 802, and the slip ring 802 is slidably connected to the drive shaft 603. A first side toothed ring 803 is fixed on the outer side of one end of the drive shaft 603. A second side toothed ring 804 is fixed inside the upper end of the support rod 2 and the extension rod 3, and the second side toothed ring 804 matches the first side toothed ring 803. The specific operation is as follows: During assembly, since the connection between the positioning component 6 and the reinforcing component 7 is driven by the drive shaft 603, during disassembly, simply rotating the drive shaft 603 in the reverse direction will simultaneously move the first rack 605 and the second rack 701 back, thereby automatically disconnecting the connection between the positioning component 6 and the reinforcing component 7 without adding any additional operation steps, thus improving the overall disassembly and assembly efficiency. In non-operational processes, the compression spring 801 will push the slip ring 802 and squeeze the drive shaft 603, causing the first side gear ring 803 to engage with the second side gear ring 804, which can lock the rotation angle of the drive shaft 603, thereby improving the stability after installation. During operation, simply push the drive shaft 603 with force to compress the compression spring 801, and the first side gear ring 803 and the second side gear ring 804 will separate on their own. At this time, rotating the drive shaft 603 will allow for normal rotation operation, avoiding accidental rotation during non-operational processes that could affect the stability of the system.

[0023] In summary, this slipform system reinforcement and rapid installation and dismantling structure and its installation method, when in use, first use bolts to fix the base 1 and the lowest support plate 706 to the concrete ground; Next, push the drive shaft 603 forcefully to compress the spring 801, causing the first side gear ring 803 and the second side gear ring 804 to separate on their own. Then, rotate the drive shaft 603 to drive the gear 604 through the first rack 605 to drive the transmission frame 606 to pull the connecting rod 607. During this process, the positioning block 602 will limit and guide the locking block 608, causing the locking block 608 to retract into the positioning block 602 for avoidance. At this time, the positioning block 602 and the positioning groove 601 facilitate the quick docking between the extension rod 3 and the support rod 2, and perform initial positioning. The positioning pin 504 on the docking top plate 503 will be inserted into the positioning hole 502 on the docking bottom plate 501 to further enhance the overall connection strength. Next, insert the adjusting plate 704 into the upper end of the support plate 706 and pull the pin 710 to avoid it. When the locking plate 703 is inserted into the side opening of the support rod 2 or the extension rod 3, release the hand. The return spring 712 will push the retaining ring 711 to insert the pin 710 into the adjusting hole 705 on the adjusting plate 704, and quickly lock the support plate 706 and the adjusting plate 704. Then, by reversing the drive shaft 603, the first rack 605, transmission frame 606, and connecting rod 607 push the locking block 608, causing it to extend from the positioning block 602 and engage with both sides of the positioning groove 601, quickly locking the support rod 2 and the extension rod 3. At the same time, the second rack 701 inserts the sleeve 702 into the locking plate 703 to fix the position of the adjusting plate 704, making assembly very convenient. After releasing, the compression spring 801 pushes the slip ring 802 and squeezes the drive shaft 603, causing the first side gear ring 803 to engage with the second side gear ring 804, thus locking the rotation angle of the drive shaft 603, thereby improving the stability after installation and preventing accidental rotation during non-operation periods from affecting the stability of the system. Subsequently, when assembling multiple extension rods 3 or assembling extension rods 3 with connecting frame 4, the above operation can be repeated again. The connection operation between support plates 706 can be limited by grooves 707 and protrusions 708. Therefore, no other tools are needed during installation and disassembly, which is very convenient. In addition, during use, the triangular structure formed by support plates 706, support rods 2 and extension rods 3 and the ground can be used to enhance the overall stability. Finally, during disassembly, simply rotating the drive shaft 603 in the reverse direction will simultaneously move the first rack 605 and the second rack 701 back, thereby automatically disconnecting the connection between the positioning component 6 and the reinforcing component 7 without requiring additional operating steps, thus improving the overall disassembly and assembly efficiency.

[0024] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A structure for reinforcing and rapidly assembling a slipform system, characterized in that, The system includes a base (1) and a positioning component (6). A support rod (2) is fixed to the top of the base (1), and an extension rod (3) is provided on the top of the support rod (2). A connecting frame (4) is connected to the top of the extension rod (3), and docking components (5) are provided at both the upper and lower ends of the extension rod (3) and the upper end of the support rod (2). The positioning component (6) is located at the ends of the support rod (2) and the extension rod (3), and the positioning component (6) includes a positioning groove (601). A positioning groove (601) is provided at the bottom of the extension rod (3). The top of the long rod (3) and the support rod (2) are both fixed with positioning blocks (602), and the upper ends of the extension rod (3) and the support rod (2) are rotatably connected with drive shafts (603). One end of the drive shaft (603) is fixed with a gear (604), and one side of the gear (604) is meshed with a first rack (605). The top of the first rack (605) is equipped with a transmission frame (606), and the top of the transmission frame (606) is rotatably connected with a connecting rod (607). The end of the connecting rod (607) is rotatably connected with a locking block (608). A reinforcing component (7) is provided on one side of the support rod (2) and the extension rod (3), and the reinforcing component (7) includes a second rack (701). The second rack (701) is meshed on the other side of the gear (604), and a sleeve (702) is fixed at the bottom of the second rack (701). A card plate (703) is slidably connected inside the sleeve (702), and an adjusting plate (704) is fixed at one end of the card plate (703). An adjustment hole (705) is provided on one side of the adjustment plate (704), and a support plate (706) is sleeved on the outer side of the adjustment plate (704). A groove (707) is provided at the bottom of the support plate (706), and a protrusion (708) is fixed at the top of the support plate (706). A limiting frame (709) is installed on the upper side of one side of the support plate (706), and a pin (710) is slidably connected inside the limiting frame (709). A retaining ring (711) is fixed on the outer side of the middle part of the pin (710), and a return spring (712) is connected to one side of the retaining ring (711), and the return spring (712) abuts against the limiting frame (709).

2. The slipform system reinforcement and rapid assembly / disassembly structure according to claim 1, characterized in that, The locking block (608) is engaged with the extension rod (3) through the positioning groove (601), and the locking block (608) is slidably connected with the positioning block (602).

3. The slipform system reinforcement and rapid assembly / disassembly structure according to claim 2, characterized in that, The docking assembly (5) includes a docking base plate (501). The upper outer sides of the support rod (2) and the extension rod (3) are both fixed with the docking base plate (501), and the outer end of the docking base plate (501) is provided with a positioning hole (502).

4. The slipform system reinforcement and rapid assembly / disassembly structure according to claim 3, characterized in that, The extension rod (3) has a docking top plate (503) on one side of its bottom, and a positioning pin (504) is fixed at the bottom outer end of the docking top plate (503). The positioning pin (504) corresponds one-to-one with the positioning hole (502). The docking bottom plate (501) and the docking top plate (503) are both equipped with reinforcing ribs (505) on one side.

5. The slipform system reinforcement and rapid assembly / disassembly structure according to claim 1, characterized in that, The drive shaft (603) is provided with stabilizing components (8) at both ends, and the stabilizing components (8) include compression springs (801). One end of the compression springs (801) is connected to a slip ring (802), and the slip ring (802) is slidably connected to the drive shaft (603). A first side toothed ring (803) is fixed on the outer side of one end of the drive shaft (603).

6. The slipform system reinforcement and rapid assembly / disassembly structure according to claim 5, characterized in that, The upper ends of the support rod (2) and the extension rod (3) are both fixed with a second side toothed ring (804), and the second side toothed ring (804) matches the first side toothed ring (803).

7. An installation method for a slipform system reinforcement and rapid assembly / disassembly structure, characterized in that, The application to the slipform system reinforcement and rapid assembly / disassembly structure as described in claim 6 includes the following steps: Step 1: Use bolts to fix the base (1) and the bottom support plate (706) to the concrete ground; Step 2: Push and rotate the drive shaft (603) so that the gear (604) drives the transmission frame (606) through the first rack (605) to pull the connecting rod (607), and retract the locking block (608) into the positioning block (602) to avoid it. Then, the positioning block (602) and the positioning groove (601) facilitate the quick docking between the extension rod (3) and the support rod (2). The positioning pin (504) on the docking top plate (503) will be inserted into the positioning hole (502) on the docking bottom plate (501). Step 3: Insert the adjusting plate (704) into the upper end of the support plate (706), and pull the pin (710) to make way. When the locking plate (703) is inserted into the side opening of the support rod (2) or extension rod (3), release the hand. The return spring (712) will push the retaining ring (711) to insert the pin (710) into the adjusting hole (705) on the adjusting plate (704), and quickly lock the support plate (706) and the adjusting plate (704). Step 4: Reverse the drive shaft (603) so that the locking block (608) extends out from the positioning block (602) and engages with both sides of the positioning groove (601). At the same time, the sleeve (702) is inserted into the locking plate (703) by the second rack (701) to fix the position of the adjusting plate (704). After releasing, the compression spring (801) will push the slip ring (802) and squeeze the drive shaft (603) so that the first side gear ring (803) and the second side gear ring (804) engage to lock the rotation angle of the drive shaft (603). Step 5: Similarly, repeat the above operation to assemble multiple extension rods (3) or to assemble extension rods (3) and connecting frame (4). The connection operation between support plates (706) can be limited by grooves (707) and protrusions (708). In use, the triangular structure formed by support plates (706), support rods (2), extension rods (3) and the ground can be used to enhance the overall stability. Step 6: During disassembly, simply rotating the drive shaft (603) in the reverse direction will simultaneously move the first rack (605) and the second rack (701) back, thereby automatically disconnecting the connection locking operation of the positioning component (6) and the reinforcing component (7), improving the overall disassembly and assembly efficiency.

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