Prefabricated vertical component support-free connecting node structure

Abstract

The invention belongs to the technical field of construction and fixation of prefabricated vertical components, and discloses a prefabricated vertical component support-free connecting node structure which comprises a vertical component body, a bundling steel bar set is integrally formed in the vertical component body in a pouring mode, and a second positioning seat is arranged at one corner of the side face of the vertical component body in a pouring mode. Through the arrangement of the magnetic suction plate structure arranged in the magnetic suction assembly, in the construction process, when the vertical component body is installed, the vertical component body is transferred to a construction area, and the vertical component body is moved to one side of the adjacent vertical component body; and rapid magnetic attraction positioning is carried out through the arrangement of a magnetic attraction structure, so that the arrangement of a support-free structure of the vertical component body is completed, constructors can conveniently carry out follow-up construction operation on the vertical component body, the construction progress is accelerated, additional steel bar fixing construction is not needed, a support-free structure design is provided, and the construction fixing time is greatly saved.

Description

Technical Field

[0001] The invention belongs to the technical field of construction and fixation of prefabricated vertical components, in particular to a support-free connection node structure of prefabricated vertical components. Background Art

[0002] Traditional prefabricated vertical component installation relies on sleeve grouting or grout-anchor lap joints. Grouting a single node takes approximately 30 minutes, and the grout must wait for the grout to cure (curing period ≥ 24 hours). This makes it difficult to meet the "three-day-a-story" construction pace of high-rise residential buildings. Grouting and outlet holes must be reserved, component production is complex, and winter construction requires additional insulation measures. Traditional installation requires steel pipe bracing or steel truss supports, with a single component support cost of approximately 500 to 800 yuan. Furthermore, the support system takes up construction space and affects subsequent processes (such as formwork installation and rebar tying), resulting in a 30% reduction in process connection efficiency. High safety risks: Support collapse accidents during high-altitude operations account for 25% of prefabricated construction safety accidents. Existing technologies, due to low connection efficiency, high quality risks, and cost sensitivity, are no longer able to meet the industry's high-quality development needs.

[0003] Publication number CN107090908B discloses a novel method for connecting vertical precast components. The method comprises the following steps: (1) hoisting a precast concrete horizontal component to an installation location and tying reinforcement bars to the precast concrete horizontal component; (2) performing a primary concrete pouring while reserving space in the node area for a secondary concrete pouring; (3) hoisting an upper precast concrete vertical component to an installation location, placing a supporting steel truss embedded in the upper precast concrete vertical component and extending from its lower end on the lower precast concrete vertical component to support and stabilize the upper precast concrete vertical component; (4) tying reinforcement bars through the supporting steel truss in the node area, supporting the formwork, and performing a secondary concrete pouring in the node area. The formwork is then removed after the concrete reaches the designed strength. Publication No. CN112459260A discloses a steel structure connection device for a construction node of a prefabricated vertical component, comprising: a first square steel, the first square steel being arranged on a floor slab and a vertical wall therebelow, the upper end surface of the first square steel being exposed from the floor slab; a first steel plate, the first steel plate being arranged to cover the upper end surface of the first square steel; a second square steel, the second square steel being arranged on a prefabricated vertical component located above the floor slab, the lower end surface of the second square steel being exposed from the prefabricated vertical component; a second steel plate, the second steel plate being arranged to cover the lower end surface of the second square steel; and bolts connected between the first steel plate and the second steel plate. The above-mentioned new vertical prefabricated component node connection method adds an armature structure to fix the prefabricated vertical bodies of the upper and lower layers. However, during the construction process, a large number of mixed steel bar casting construction operations are required. Before the construction operation of the vertical components, the position of the steel bars needs to be cast and fixed. At the same time, during the solidification process, the prefabricated vertical component body needs to be fixed with a diagonal bracing structure to avoid the deflection of the prefabricated vertical component installation, which increases the fixing cost. In a steel structure connection device at a prefabricated assembled vertical component construction node, the columnar prefabricated vertical components are fixed by a cup-shaped structure, and concrete is buried to seal the gaps, thereby avoiding shaking and improving the stability of the reinforcement. However, some vertical components do not have the construction conditions and still need supporting connection structures for fixation. Instead, more preparations need to be done in the early stage of construction, which slows down the construction progress.

[0004] Therefore, to address the above problems, a prefabricated vertical component support-free connection node structure is proposed. Summary of the Invention

[0005] In order to solve the problems raised in the above-mentioned background technology, the present invention provides a support-free connection node structure for prefabricated vertical components. Through the innovation of support-free connection technology, intelligent monitoring means and the application of green materials, it can systematically solve traditional pain points and promote the transition of prefabricated buildings from "quantity increase" to "qualitative change".

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a prefabricated vertical member support-free connection node structure, comprising a vertical member body, wherein the interior of the vertical member body is integrally cast and provided with a bundled steel bar group, a second positioning seat is cast at a corner of the side of the vertical member body, and a fixing assembly is provided inside the second positioning seat; The fixing assembly includes a fixing block with an anti-drop handle on the outside, a clamping block frame welded to the outside of the fixing block, and a magnetic attraction assembly inside the clamping block frame; The magnetic attraction component includes a horizontal frame slidingly arranged inside the block frame, a rack frame is fitted inside the horizontal frame, a fixed plate is provided at the other end of the rack frame, and a magnetic attraction plate is provided on the surface of the fixed plate for magnetic attraction with adjacent vertical components.

[0007] Preferably, a first positioning seat is embedded and cast inside the side surface of the vertical component body, and the first positioning seat is the same as the second positioning seat and has a thread groove inside. It can be made of alloy steel.

[0008] Preferably, a screw rod 1 spirally arranged with the first positioning seat or the second positioning seat is fixed on the outer side of the fixing block, and a steel washer sleeved on the outer side of the screw rod 1 may be provided on the outer side of the fixing block and the first positioning seat or the second positioning seat.

[0009] Preferably, a slot is provided on the surface of the cross frame, an insert shaft connected to the block frame is inserted inside the slot, and an anti-deflection plate located inside the slot is welded to the outside of the insert shaft.

[0010] Preferably, a worm wheel that rotates with the block frame is welded to the bottom end of the insertion shaft, a worm that rotates with the block frame is meshed on the outer side of the worm wheel, and a hexagonal groove can be opened at the shaft end of the worm.

[0011] Preferably, a positioning sleeve is provided on the surface of the fixing plate, a worm screwed with the rack rack passes through the interior of the positioning sleeve, and seven positioning sleeves are provided on the surface of the fixing plate.

[0012] Preferably, a magnetic plate is magnetically provided at the top of the fixing plate, a positioning sleeve is fixedly provided inside the magnetic plate, and a screw rod three is spirally provided inside the positioning sleeve and passes through the fixing plate.

[0013] Preferably, a damping rod with one end fixed thereto is provided through the interior of the rack frame, a triangular block fixed to the cross frame is fixed to the other end of the damping rod, and a spring is sleeved on the outer side of the damping rod.

[0014] Preferably, the outer side of the rack frame is meshed with a transmission gear rotatably arranged with the cross frame, the surface of the transmission gear is provided with a socket, the inside of the socket is provided with a socket, the inside of the socket is provided with a rod, and the other end of the rod is fixed with a handle.

[0015] Preferably, the magnetic plate is configured as an L-shaped structure, and is configured as a step-shaped structure on a side close to the fixed plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention uses a magnetic plate structure provided in a magnetic assembly, so that during the construction process, when performing the installation operation of the vertical component body, the vertical component body can be moved to the construction area, and the vertical component body can be moved to the side of the adjacent vertical component body, and the magnetic structure can be used to quickly perform magnetic positioning, thereby completing the support-free structure setting of the vertical component body, so as to facilitate the construction personnel's subsequent construction operations on the vertical component body, speed up the construction progress, and provide a support-free structural design without the need for additional steel bar fixing construction, greatly saving construction fixation time.

[0017] 2. The present invention adopts a rack frame structure design that can be quickly fixed and adjusted to be disengaged through the magnetic attraction component. The construction is carried out during the magnetic positioning of the vertical component body. After the construction is completed, the transmission gear structure located inside the horizontal frame can be rotated, and the rack frame on the outer side of the meshing can be telescopically moved on the outer side of the damping rod, pulling the fixed plate and the magnetic plate at the other end out of the magnetic positioning position, and then quickly separating the connected magnetic attraction components for subsequent disassembly operations.

[0018] 3. The present invention adopts a block frame structure design that can be used for quick fixation in the fixing assembly. During construction operations, when installing the cross frame, the cross frame can be directly installed into the interior of the block frame, and the insertion shaft and anti-deflection plate can be inserted into the slot for quick positioning.

[0019] 4. The present invention can form a transmission structure by adding a worm gear structure. During the rotation process, its horizontal frame can be deflected to different directions. When the surface of the vertical component to be magnetically connected is irregular, the magnetic structure can be rotated to an angle that fits the irregular surface of the vertical component, making the magnetic connection more stable and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the installation structure of the fixing assembly of the present invention; Figure 3 For the present invention Figure 1 Schematic diagram of the structure at A; Figure 4 This is a schematic diagram of the installation structure of the fixing block of the present invention; Figure 5 This is a schematic diagram of the installation structure of the block frame of the present invention; Figure 6 Schematic diagram of the installation structure of the anti-deflection plate of the present invention; Figure 7 Schematic diagram of the installation structure of the magnetic plate of the present invention; Figure 8 For the present invention Figure 7 Schematic diagram of the structure at B; Figure 9 Schematic diagram of the installation structure of the fixing plate of the present invention; Figure 10 Schematic diagram of the installation structure of the rack rack of the present invention.

[0021] In the figure: 1, vertical member body; 2, bundled steel bar group; 3, first positioning seat; 4, second positioning seat; 5. Fixing assembly; 51. Fixing block; 52. Screw 1; 53. Block frame; 54. Insert shaft; 55. Anti-deflection plate; 56. Worm gear; 57. Worm; 58. Slot; 6. Magnetic assembly; 61. Horizontal frame; 62. Rack frame; 63. Fixed plate; 64. Magnetic plate; 65. Screw rod 2; 66. Connecting hole; 67. Screw rod 3; 68. Damping rod; 69. Spring; 610. Triangle block; 611. Transmission gear; 612. Socket; 613. Insert rod; 614. Handle; 615. Positioning sleeve.

[0022] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0025] like Figures 1 to 10 As shown, the present invention provides a prefabricated vertical member support-free connection node structure, including a vertical member body 1, the interior of the vertical member body 1 is integrally cast and provided with a bundled steel bar group 2, and the strength of the vertical member body 1 is strengthened by the bundled steel bar group 2. A second positioning seat 4 is cast at a corner of the side of the vertical member body 1, and the second positioning seat 4 serves as a connection structure between the vertical member body 1 and the fixing assembly 5. For the node assembled between the magnetic attraction assembly 6, the vertical member body 1 and the fixing assembly 5, the interior of the second positioning seat 4 is provided with a fixing assembly 5; The fixing assembly 5 includes a fixing block 51 with an anti-drop handle on the outside. The anti-drop handle is designed in the shape of a tooth structure. It is installed and operated on the outside of the fixing block 51 to prevent it from falling off. A clamping block frame 53 is welded on the outside of the fixing block 51. The clamping block frame 53 is designed to connect the fixing assembly 5 and the magnetic attraction assembly 6. The magnetic attraction assembly 6 is provided inside the clamping block frame 53. The magnetic component 6 includes a horizontal frame 61 that is slidably arranged inside the block frame 53. The horizontal frame 61 structure can be quickly plugged into and positioned inside the block frame 53, and the positioning operation is convenient. A rack frame 62 is fitted inside the horizontal frame 61, and a fixed plate 63 is provided at the other end of the rack frame 62. The surface of the fixed plate 63 is provided with a magnetic plate 64 that is magnetically attracted to the adjacent vertical components. The structural design of the magnetic plate 64 can be installed on the surface of the fixed plate 63, and the height can be adjusted through the fixed plate 63. The magnetic positioning is performed by using the magnetic plate 64 as a connecting structure, and a corresponding magnetic structure is provided at the adjacent structure of the magnetic attraction to improve the stability of the magnetic positioning.

[0026] Specifically, a first positioning seat 3 is embedded and cast inside the side of the vertical component body 1, and the first positioning seat 3 is the same as the second positioning seat 4, and a threaded groove is opened inside. It can be made of alloy steel. The structural design of the first positioning seat 3 can form a positioning point on the other side of the vertical component body 1 for installation and positioning. The alloy steel structure can enhance the structural strength of the vertical component body 1 and avoid breakage and falling off.

[0027] A screw 52 is fixedly provided on the outer side of the fixing block 51 and is spirally arranged with the first positioning seat 3 or the second positioning seat 4. A steel gasket can be provided on the outer side of the fixing block 51 and the first positioning seat 3 or the second positioning seat 4 and is sleeved on the outer side of the screw 52. The fixing block 51 is inserted into the interior of the first positioning seat 3 or the second positioning seat 4 through the screw 52, and is assembled in different directions and magnetically attracted to different positions. The structure of the steel gasket can enhance the connection stability.

[0028] A slot 58 is provided on the surface of the cross frame 61, and an insert shaft 54 is provided inside the slot 58 to be plugged into the block frame 53. An anti-deflection plate 55 located inside the slot 58 is welded to the outside of the insert shaft 54. The structural design of the insert shaft 54 can directly penetrate and be positioned inside the cross frame 61 for quick positioning. After assembly is completed, the anti-deflection plate 55 can prevent the cross frame 61 from being deflected during use.

[0029] A worm gear 56 that rotates with the block frame 53 is welded to the bottom end of the insertion shaft 54, and a worm 57 that rotates with the block frame 53 is meshed on the outer side of the worm gear 56, and a hexagonal groove can be opened at the shaft end of the worm 57. The added hexagonal groove facilitates the rotation of the worm 57 structure, which engages the outer side of the worm gear 56 for rotation. After the rotation is completed, the connected insertion shaft 54 is controlled to rotate, and the anti-deflection plate 55 is cooperated to control the deflection positioning of the cross frame 61.

[0030] A connecting hole 66 is provided on the surface of the fixing plate 63, and a screw rod 3 67 spirally arranged with the rack frame 62 is passed through the interior of the connecting hole 66. There are seven connecting holes 66 on the surface of the fixing plate 63. The seven connecting holes 66 structure can be positioned through multiple positioning points in different directions, and then the screw rod 3 67 is inserted into the interior for connection and fixation, thereby changing the different height positions of the fixing plate 63 on the rack frame 62.

[0031] A magnetic plate 64 is magnetically provided at the top of the fixing plate 63, and a positioning sleeve 615 is fixed inside the magnetic plate 64. The internal spiral of the positioning sleeve 615 is provided with a screw 2 65 that passes through the fixing plate 63. The structural design of the magnetic plate 64 can provide a magnetic positioning structure and magnetically position the vertical component body 1 to maintain stability. At the same time, when the added screw 2 65 is in use, the screw 2 65 can be inserted into the interior of the magnetic plate 64. After positioning is completed, it can maintain stability.

[0032] A damping rod 68 with one end fixed thereto is provided inside the rack frame 62, and a triangular block 610 fixed to the cross frame 61 is fixed to the other end of the damping rod 68. A spring 69 is sleeved on the outside of the damping rod 68. The spring 69 is sleeved on the outside of the damping rod 68 to push and keep the rack frame 62 pressed to the expanded position to maintain the positioning state. The damping rod 68 structure is stably positioned by the triangular block 610 to provide displacement space.

[0033] The outer side of the rack frame 62 is meshed with a transmission gear 611 that is rotatable with the cross frame 61. A socket 612 is provided on the surface of the transmission gear 611. The interior of the socket 612 is plugged with a socket 612. The interior of the socket 612 is plugged with an insertion rod 613. The other end of the insertion rod 613 is fixed with a handle 614. Insert the insertion rod 613 of the handle 614 into the convenient socket 612. Pulling the handle 614 can control the transmission gear 611 to rotate, control it to rotate, and engage the rack frame 62 structure to move. By rotating the transmission gear 611 structure, the rack frame 62 can be controlled to enter the interior of the cross frame 61, and the magnetic plate 64 can be removed from the magnetic position.

[0034] The magnetic plate 64 is configured as an L-shaped structure, and is configured as a step-shaped structure on one side close to the fixed plate 63. The added step-shaped structure can increase the magnetic attraction range and provide more stable positioning.

[0035] The working principle of the technical solution provided by the present invention is as follows: To position and initially secure components, a tower crane is used to hoist upper vertical components (such as precast columns) above the lower components, aligning the first locating seat 3 with the second locating seat 4 (deviation ≤ 5mm). The operator rotates the transmission gear 611 using handle 614, extending the rack 62 outward, allowing the magnetic plate 64 to contact and attract the surface of the adjacent component (magnetic attraction strength ≥ 5kN). Key technology: The magnetic plate 64 utilizes neodymium iron boron permanent magnets (remanent magnetism ≥ 1.4T) and an L-shaped structural design to achieve rapid positioning and horizontal restraint between components.

[0036] Fixed component locking: Insert a wrench into the hexagonal groove at the end of the worm gear 57. Turn the worm gear 57 to rotate the worm wheel 56, which in turn drives the insert shaft 54 to slide within the slot 58. This allows the anti-deflection plate 55 to engage the inner wall of the block frame 53, limiting lateral displacement of the cross frame 61. Technical Effect: The self-locking properties of the worm gear (lead angle ≤ 4°) ensure that the fixed assembly does not loosen under load, with a pull-out resistance of ≥ 80 kN. Rotate the screw rod 1 52 on the outside of the fixing block 51 to tightly engage the thread grooves of the first positioning seat 3 / second positioning seat 4, achieving a preload of ≥ 20 kN. Structural Innovation: Screw rod 1 52 is made of high-strength alloy steel (yield strength ≥ 800 MPa) and is coated with a Dacromet coating. It has a salt spray resistance test of ≥ 1000 hours. Damping and Seismic Resistance: When the component is subjected to vibration loads, the rack frame 62 slides along the damping rod 68, and the compression spring 69 absorbs energy (damping ratio ≥ 0.15). Performance Parameters: This structure can withstand earthquakes with an acceleration of 1.5g, with residual deformation ≤2mm. Each vertical component is connected via at least three nodes (e.g., a rectangular triangle arrangement) distributed on different elevations, forming a spatially stable system. Mechanical calculations: The shear bearing capacity of a single node is ≥120kN, meeting the requirements of the "Technical Code for Prefabricated Concrete Structures" (JGJ1-2024). The magnetic assembly 6 provides initial positioning force (approximately 5-8kN), while the fixed assembly 5 bears the long-term load. Together, these two components ensure the node stiffness reaches over 90% of that of a cast-in-place structure. Foundation Preparation: Clean the connecting surfaces of the lower components to ensure a flatness deviation of ≤3mm. Component Pre-Assembly: The fixed assembly 5 and magnetic assembly 6 are pre-assembled into the second positioning seat 4 at the factory, with the bolt tightening torque ≥80N·m. After the components are in place, the position of the magnetic plate 64 is fine-tuned by adjusting screw 3 67 to ensure a clearance of ≤2mm from the adjacent component surface. Use an electric wrench to tighten screw 52 in diagonal order, and apply pre-tightening force three times (50% → 80% → 100%).

[0037] Ultrasonic testing: Detects the engagement length of the screw thread 52 and the locating seat, requiring ≥90% effective thread coverage. Strain monitoring: Fiber Bragg grating sensors are embedded at key nodes for real-time monitoring of stress conditions (measurement range ±3000 με, accuracy ±1 με). Installation time per node is ≤15 minutes, a 75% reduction compared to traditional sleeve grouting. No waiting time is required for the grout to cure, allowing immediate construction of the upper floors, saving 10-15 days per building. A dual safety mechanism of "mechanical locking + magnetic suction assistance" ensures a connection failure probability of <0.1%. Strong traceability: Installation torque, time, and other data for each node are automatically stored in the BIM system. Overall costs are 12%-18% lower than traditional processes (eliminating support materials, labor, and grouting material costs). Component production molds are simplified, reducing reserved channels and reducing mold costs by 25%. Temporary support steel usage is reduced by 80%, reducing carbon emissions by approximately 6 kg / m2. The damping components are reusable, with a recycling rate of ≥95%. For cast-in-place to prefabricated projects such as high-rise residential buildings (≤30 floors), office buildings, hospitals, etc., in areas with seismic fortification intensity ≤8 degrees, they are used in combination with prefabricated composite slabs to form a "column-beam-slab" fully prefabricated frame system. The present invention breaks through the technical bottleneck of traditional prefabricated vertical components relying on temporary supports through innovative magnetic attraction and mechanical composite connection structure, and realizes efficient construction of "installation and stress". After third-party testing, all performance indicators of the nodes meet the requirements of current specifications. After application in a certain affordable housing project in Shenzhen, construction efficiency increased by 40% and comprehensive costs decreased by 15%. It has significant economic and social benefits, and can effectively promote the high-quality development of prefabricated buildings.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0039] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A prefabricated vertical component support-free connection node structure, comprising a vertical component body (1), characterized in that: The interior of the vertical component body (1) is integrally cast and provided with a bundled steel bar group (2); a second positioning seat (4) is cast and provided at a corner of the side of the vertical component body (1); and a fixing component (5) is provided inside the second positioning seat (4); The fixing assembly (5) comprises a fixing block (51) with an anti-drop handle provided on the outside, a clamping block frame (53) is welded on the outside of the fixing block (51), and a magnetic attraction assembly (6) is provided inside the clamping block frame (53); The magnetic attraction component (6) includes a horizontal frame (61) slidably arranged inside the block frame (53), a rack frame (62) is fitted inside the horizontal frame (61), a fixing plate (63) is provided at the other end of the rack frame (62), and a magnetic attraction plate (64) is provided on the surface of the fixing plate (63) for magnetic attraction with adjacent vertical components.

2. The prefabricated vertical component support-free connection node structure according to claim 1, characterized in that: A first positioning seat (3) is embedded and cast inside the side surface of the vertical component body (1), and the first positioning seat (3) is the same as the second positioning seat (4) and has a thread groove inside. The first positioning seat (3) can be made of alloy steel.

3. The prefabricated vertical component support-free connection node structure according to claim 2, characterized in that: A screw rod (52) is fixedly provided on the outer side of the fixing block (51) and is spirally arranged with the first positioning seat (3) or the second positioning seat (4). A steel washer sleeved on the outer side of the screw rod (52) can be provided on the outer side of the fixing block (51) and the first positioning seat (3) or the second positioning seat (4).

4. The prefabricated vertical component support-free connection node structure according to claim 1, characterized in that: A slot (58) is provided on the surface of the cross frame (61), an insert shaft (54) inserted into the slot (58) and connected to the block frame (53) is provided inside the slot (58), and an anti-deflection plate (55) located inside the slot (58) is welded to the outside of the insert shaft (54).

5. The prefabricated vertical component support-free connection node structure according to claim 4, characterized in that: A worm wheel (56) is welded to the bottom end of the insertion shaft (54) and rotates with the block frame (53). A worm (57) is meshed with the outer side of the worm wheel (56) and rotates with the block frame (53). A hexagonal groove can be provided at the shaft end of the worm (57).

6. The prefabricated vertical component support-free connection node structure according to claim 1, characterized in that: The surface of the fixing plate (63) is provided with a connection hole (66), and a screw rod (67) spirally arranged with the rack frame (62) passes through the interior of the connection hole (66). Seven connection holes (66) are provided on the surface of the fixing plate (63).

7. The prefabricated vertical component support-free connection node structure according to claim 1, characterized in that: The top end of the fixing plate (63) is magnetically provided with a magnetic plate (64), the interior of the magnetic plate (64) is fixedly provided with a positioning sleeve (615), and the interior of the positioning sleeve (615) is spirally provided with a screw rod (65) that passes through the fixing plate (63).

8. The prefabricated vertical component support-free connection node structure according to claim 1, characterized in that: A damping rod (68) is provided inside the rack frame (62) with one end fixed thereto, and a triangular block (610) is fixed to the other end of the damping rod (68) and is fixed to the cross frame (61). A spring (69) is sleeved on the outside of the damping rod (68).

9. The prefabricated vertical component support-free connection node structure according to claim 1, characterized in that: The outer side of the rack frame (62) is meshed with a transmission gear (611) that is rotatably arranged with the cross frame (61), the surface of the transmission gear (611) is provided with a socket (612), the interior of the socket (612) is plugged with a socket (612), the interior of the socket (612) is plugged with an insertion rod (613), and the other end of the insertion rod (613) is fixed with a handle (614).

10. The prefabricated vertical component support-free connection node structure according to claim 1, characterized in that: The magnetic attraction plate (64) is configured as an L-shaped structure, and is configured as a step-shaped structure on a side close to the fixed plate (63).

Images