Modular assembly type steel structure beam column self-locking connection joint and construction method thereof

Abstract

The invention relates to the technical field of steel structure connecting joints, in particular to a modular assembly type steel structure beam column self-locking connecting joint and a construction method thereof. The connecting plate is provided with a connecting assembly, and the connecting assembly comprises a self-locking mechanism and a locking mechanism; and the dehumidification assembly comprises a pressing triggering mechanism and a water vapor adsorption mechanism. Through the arrangement of the self-locking mechanism and the locking mechanism, a self-locking and mechanical locking dual-guarantee mechanism is formed, and the technical defects that a single connection mode is prone to loosening and low in assembly efficiency are overcome; through the arrangement of the pressing trigger mechanism, the water vapor adsorption mechanism is synchronously started during assembly, water vapor can be effectively adsorbed during use, water intrusion is prevented, and the service life of the connection node is prolonged; the pressurizing mechanism is driven to work through the vibration triggering mechanism, the connection stability of the connection joint under the external vibration condition is ensured, the locking effect is improved, and self-adaptive reinforcement is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure connection nodes, and in particular to a modular assembled steel structure beam-column self-locking connection node and a construction method thereof. Background Art

[0002] With the increasing demand for steel structures in the construction industry, steel beams and columns are being used in a variety of buildings, making steel structure connection technology a key issue. Traditional steel structure beam and column connection methods rely on manual assembly followed by bolting or welding, which is time-consuming and labor-intensive.

[0003] To address the aforementioned technical issues, a self-locking modular steel structure connection node, published under the patent number "CN114164949A," comprises a corner piece mounted at the bottom of an external frame column and a connector that mates with the corner piece. The corner piece is a hollow rectangular parallelepiped structure, internally provided with a locking member and a limit plate. The connector comprises a backing plate and a latch mounted on the backing plate that mates with the locking member. The connector, consisting of the backing plate and latch, mates with the corner piece to connect the external modular steel structure. The latch self-locks, achieving convenient and rapid installation of the modular steel structure and improving its stability.

[0004] However, the above device still has the following obvious defects when in use: the existing nodes will corrode and rust due to water vapor penetration after long-term use, and the corroded nodes are easily damaged by rigid collisions in a vibration environment, increasing maintenance costs. Summary of the Invention

[0005] The object of the present invention is to provide a modular assembled steel structure beam-column self-locking connection node and a construction method thereof to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: In one aspect, a modular prefabricated steel structure beam-column self-locking connection node is provided, comprising: A fixing member connected to a steel structure beam column; A connecting plate, the connecting plate being provided with a connecting assembly, the connecting assembly comprising a self-locking mechanism and a locking mechanism, the self-locking mechanism being used to lock and connect the connecting plate and the fixing member when the two are assembled, and the locking mechanism being used to mechanically lock the connecting plate and the fixing member after the two are assembled; A dehumidification component, the dehumidification component including a press trigger mechanism and a water vapor adsorption mechanism, the press trigger mechanism is used to trigger the opening of the water vapor adsorption mechanism when the self-locking mechanism is used, and the water vapor adsorption mechanism is used to adsorb water vapor; The reinforcement component includes a vibration triggering mechanism and a pressurizing mechanism. The vibration triggering mechanism is used to trigger the pressurizing mechanism to open by vibration, and the pressurizing mechanism is used to utilize the kinetic energy generated by vibration to improve the locking of the locking mechanism.

[0007] Preferably, the fixing member is provided with a locking cavity and an installation cavity, and the locking cavity and the installation cavity are communicated with each other, and the self-locking mechanism includes a connecting rod, a limiting cone, a limiting block and a limiting spring, the connecting rod is connected to the connecting plate, the limiting cone is connected to the connecting rod, the limiting block is provided in the installation cavity, and the two ends of the limiting spring are respectively connected to the limiting block and the side wall of the installation cavity, after the limiting cone is inserted into the locking cavity, the limiting spring is used to drive the limiting block to limit the limiting cone, and four groups of limiting blocks and limiting springs are provided, and four groups of limiting blocks and limiting springs are arranged around the installation cavity.

[0008] Preferably, two groups of the connecting rods and the limiting truncated cones are provided, and the two groups of the connecting rods and the limiting truncated cones are symmetrically arranged on both sides of the connecting plate.

[0009] Preferably, the limiting table is provided with an equipment cavity, and the locking mechanism includes a moving block and a locking steel ball. The moving block is movably inserted in the equipment cavity, and the locking steel ball is arranged around the moving block. When the limiting table is inserted into the locking cavity, the moving block will move along the equipment cavity, thereby pushing the locking steel column out of the equipment cavity.

[0010] Preferably, the water vapor adsorption mechanism includes a protective film, a water-absorbing resin and a sealing rubber block. The water-absorbing resin is arranged in the installation cavity, the protective film is wrapped around the outside of the water-absorbing resin, and the sealing rubber block is arranged in the installation cavity. When the water-absorbing resin absorbs water and expands, it pushes the sealing rubber block to seal the installation cavity.

[0011] Preferably, the press trigger mechanism includes a thorn plate, which is symmetrically arranged on both sides of the limit block. When the limit table pushes the limit block to move along the installation cavity, the thorn plate will puncture the protective film.

[0012] Preferably, the vibration triggering mechanism includes a piston rod and a piston cylinder, one end of the piston rod is connected to the limit block, the other end of the piston rod is connected to the piston cylinder, the piston cylinder is arranged in the mounting cavity, the limit spring is sleeved on the outside of the piston cylinder, and the piston cylinder is connected to the pressurizing mechanism through a pipeline.

[0013] Preferably, the pressurizing mechanism includes an annular tube, a pneumatic push rod, a one-way valve and a pressurizing block. The piston cylinder is connected to the annular tube through a pipeline. The annular tube is connected to several pneumatic push rods. The annular tube and the pneumatic push rods are connected to each other through a one-way valve. The pressurizing block is arranged at the moving end of the pneumatic push rod.

[0014] On the other hand, a construction method is provided, based on the above-mentioned modular assembled steel structure beam-column self-locking connection node, comprising the following steps: A, fixing the fixing member to the beam column; B. Insert one side of the connecting plate into the fixing piece. At this time, the self-locking mechanism will lock the connecting plate and the fixing piece together when they are assembled. When the assembly is completed, the locking mechanism will mechanically lock the connecting plate and the fixing piece. C, when the self-locking mechanism is working, the water vapor adsorption mechanism is triggered to open by the trigger mechanism; D. After completing the assembly of the fixings and the connecting plate, reinforce the connection between the fixings and the connecting plate with angle iron to complete the installation.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention forms a dual protection mechanism of self-locking and mechanical locking through the setting of a self-locking mechanism and a locking mechanism, overcomes the technical defects of a single connection method that is easy to loosen and has low assembly efficiency, and significantly improves the connection reliability and construction efficiency; through the setting of a press-trigger mechanism, the water vapor adsorption mechanism is simultaneously turned on during assembly, which can effectively adsorb water vapor during use, prevent moisture intrusion, and increase the service life of the connection node; the vibration trigger mechanism drives the pressurizing mechanism to work, ensuring the connection stability of the connection node under external vibration, improving the locking effect, and realizing adaptive reinforcement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the connection structure between the present invention and the steel structure beam column; Figure 2 Schematic diagram of the three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the connection structure of the connecting plate, connecting rod and limiting circular table of the present invention; Figure 4 Schematic diagram of the connection structure of the limiting circular table, the moving block and the locking steel ball of the present invention (the limiting circular table is cut open to show); Figure 5 This is a schematic diagram of the internal structure of the mounting cavity of the present invention; Figure 6 This is a schematic diagram of the internal structure of the fixing member of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the reinforcement assembly of the present invention; Figure 8 This is a schematic diagram of the position structure of the locking cavity and the installation cavity of the present invention; Figure 9 Schematic diagram of the position structure of the protective film and water-absorbing resin of the present invention (the protective film is cut open to show); Figure 10 This is a schematic diagram of the connection structure of the limit block, the thorn plate and the piston rod of the present invention.

[0017] In the figure: 1 fixing part, 2 connecting plate, 3 connecting rod, 4 limiting cone, 5 limiting block, 6 limiting spring, 7 moving block, 8 locking steel ball, 9 protective film, 10 water-absorbing resin, 11 sealing rubber block, 12 thorn plate, 13 piston rod, 14 piston cylinder, 15 annular tube, 16 pneumatic push rod, 17 one-way valve, 18 pressure block, 19 angle iron, 100 steel structure beam column, 101 locking cavity, 102 installation cavity, 401 equipment cavity. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-10 , the present invention provides a technical solution: A modular assembled steel structure beam-column self-locking connection node, as shown in the attached manual Figure 1 As shown, including: The fixing member 1 is connected to the steel structure beam column 100. In this embodiment, the fixing member 1 is fixedly connected to the steel structure beam column 100 by welding; The connecting plate 2 is used to install the connecting assembly. The connecting plate 2 is provided with a connecting assembly. The connecting assembly includes a self-locking mechanism and a locking mechanism. The self-locking mechanism is used to lock and connect the connecting plate 2 and the fixing member 1 when the two are assembled. The locking mechanism is used to mechanically lock the connecting plate 2 and the fixing member 1 after the assembly is completed. The dehumidification component includes a press trigger mechanism and a water vapor adsorption mechanism. The press trigger mechanism is used to trigger the opening of the water vapor adsorption mechanism when the self-locking mechanism is used, and the water vapor adsorption mechanism is used to adsorb water vapor; The reinforcement component includes a vibration triggering mechanism and a pressurizing mechanism. The vibration triggering mechanism is used to trigger the opening of the pressurizing mechanism through vibration, and the pressurizing mechanism is used to utilize the kinetic energy generated by vibration to improve the locking of the locking mechanism.

[0020] The fixing part 1 is provided with a locking cavity 101 and an installation cavity 102. The locking cavity 101 is used to limit the moving direction of the limiting table 4. The locking cavity 101 and the installation cavity 102 are connected to each other. The self-locking mechanism includes a connecting rod 3, a limiting table 4, a limiting block 5 and a limiting spring 6. The connecting rod 3 is fixedly connected to the connecting plate 2. The connecting rod 3 is used to install the limiting table 4. The limiting table 4 is fixedly connected to the connecting rod 3. The limiting block 5 is slidably connected to the installation cavity 102. The two ends of the limiting spring 6 are respectively connected to the limiting block 5 and the side wall of the installation cavity 102. After the limiting table 4 is inserted into the locking cavity 101, the limiting spring 6 is used to drive the limiting block 5 to limit the limiting table 4. There are four groups of limiting blocks 5 and limiting springs 6. The four groups of limiting blocks 5 and limiting springs 6 are arranged around the installation cavity 102 to achieve multi-angle limiting.

[0021] Two groups of connecting rods 3 and limiting circular platforms 4 are provided, and the two groups of connecting rods 3 and limiting circular platforms 4 are symmetrically arranged on both sides of the connecting plate 2.

[0022] The limiting table 4 is provided with an equipment cavity 401, which is used to install the moving block 7 and the locking steel ball 8. The locking mechanism includes the moving block 7 and the locking steel ball 8. The moving block 7 is movably inserted in the equipment cavity 401, and the locking steel ball 8 is arranged around the moving block 7. When the limiting table 4 is inserted into the locking cavity 101, the moving block 7 will move along the equipment cavity 401, thereby pushing the locking steel column out of the equipment cavity 401 and thereby enhancing the locking effect between the limiting table 4 and the locking cavity 101.

[0023] The water vapor adsorption mechanism includes a protective film 9, a water-absorbing resin 10 and a sealing rubber block 11. The water-absorbing resin 10 is arranged in the installation cavity 102. In this embodiment, the water-absorbing resin 10 is a super absorbent resin (SAP). Its volume expands after absorbing water, and it has the characteristic of not being easily dehydrated even when pressure is applied. Therefore, after adsorbing water vapor, the volume of the water-absorbing resin 10 will expand and drive the sealing rubber block 11 to fit against the limit block 5 to seal the installation cavity 102. The protective film 9 is wrapped around the outside of the water-absorbing resin 10. The protective film 9 is a polyethylene plastic film. In addition to having good insulation properties, it is convenient for the thorn plate 12 to puncture. The sealing rubber block 11 is arranged in the installation cavity 102. When the water-absorbing resin 10 absorbs water and expands, it will push the sealing rubber block 11 to seal the installation cavity 102.

[0024] The press trigger mechanism includes a thorn plate 12, which is fixedly connected to the limit block 5. The thorn plate 12 is symmetrically arranged on both sides of the limit block 5. When the limit table 4 pushes the limit block 5 to move along the installation cavity 102, the sharp spikes on the thorn plate 12 will pierce the protective film 9.

[0025] The vibration triggering mechanism includes a piston rod 13 and a piston cylinder 14. One end of the piston rod 13 is connected to the limit block 5, and the other end of the piston rod 13 is connected to the piston cylinder 14. The piston cylinder 14 is arranged in the installation cavity 102, and the limit spring 6 is sleeved on the outside of the piston cylinder 14. When vibration occurs, it will drive the piston rod 13 to reciprocate in the piston cylinder 14, thereby inputting air into the pneumatic push rod 16 through the piston cylinder 14. The piston cylinder 14 is connected to the pressurizing mechanism through a pipeline.

[0026] The pressurizing mechanism includes an annular tube 15, a pneumatic push rod 16, a one-way valve 17 and a pressurizing block 18. The piston cylinder 14 is connected to the annular tube 15 through a pipe. The annular tube 15 is used to connect the piston cylinder 14 and the pneumatic push rod 16 for airflow. The annular tube 15 is connected to several pneumatic push rods 16. The annular tube 15 and the pneumatic push rod 16 are connected through a one-way valve 17. The one-way valve 17 is used to ensure that the airflow can only flow in one direction from the annular tube 15 to the pneumatic push rod 16. The pressurizing block 18 is arranged at the moving end of the pneumatic push rod 16. The pressurizing block 18 is arranged in the locking cavity 101. The pressurizing block 18 is made of rubber and can effectively enhance the friction.

[0027] Working principle: When in use, the fixing part 1 is fixedly connected to the steel structure beam column 100 by welding, and then the limiting cone 4 on one side of the connecting plate 2 is inserted into the locking cavity 101. During the insertion, the limiting block 5 will first shrink into the inside of the installation cavity 102 and puncture the protective film 9. After the limiting cone 4 is fully inserted into the locking cavity 101, the limiting block 5 is reset under the drive of the limiting spring 6, and the self-locking is completed. During the process of inserting the limiting circular platform 4 into the locking cavity 101, as the limiting circular platform 4 goes deeper, it drives the moving rod to be inserted into the equipment cavity 401, thereby pushing the locking steel ball out of the equipment cavity 401, completing the mechanical locking; When the limit block 5 is retracted into the installation cavity 102, the limit block 5 will simultaneously drive the piston rod 13 to move in the piston cylinder 14, thereby inputting air into the pneumatic push rod 16. The pneumatic push rod 16 will extend and drive the pressure block 18 to strengthen the locking effect of the limit table 4. After the fixing member 1 and the connecting plate 2 are assembled, the connection between the fixing member 1 and the connecting plate 2 is reinforced by the angle iron 19 to complete the installation; When water vapor enters the connection between the fixing member 1 and the connecting plate 2 , the water vapor will be absorbed by the water-absorbing resin 10 , and then the water-absorbing resin 10 will expand, and then drive the sealing rubber block 11 to fit against the limiting block 5 to seal the installation cavity 102 .

[0028] 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 modular assembled steel structure beam-column self-locking connection node, characterized in that: include: A fixing member connected to a steel structure beam column; A connecting plate, the connecting plate being provided with a connecting assembly, the connecting assembly comprising a self-locking mechanism and a locking mechanism, the self-locking mechanism being used to lock and connect the connecting plate and the fixing member when the two are assembled, and the locking mechanism being used to mechanically lock the connecting plate and the fixing member after the two are assembled; A dehumidification component, the dehumidification component including a press trigger mechanism and a water vapor adsorption mechanism, the press trigger mechanism is used to trigger the opening of the water vapor adsorption mechanism when the self-locking mechanism is used, and the water vapor adsorption mechanism is used to adsorb water vapor; The reinforcement component includes a vibration triggering mechanism and a pressurizing mechanism. The vibration triggering mechanism is used to trigger the pressurizing mechanism to open by vibration, and the pressurizing mechanism is used to utilize the kinetic energy generated by vibration to improve the locking of the locking mechanism.

2. A modular assembled steel structure beam-column self-locking connection node according to claim 1, characterized in that: The fixing part is provided with a locking cavity and an installation cavity, and the locking cavity and the installation cavity are communicated with each other. The self-locking mechanism includes a connecting rod, a limiting cone, a limiting block and a limiting spring. The connecting rod is connected to the connecting plate, the limiting cone is connected to the connecting rod, and the limiting block is provided in the installation cavity. The two ends of the limiting spring are respectively connected to the limiting block and the side wall of the installation cavity. After the limiting cone is inserted into the locking cavity, the limiting spring is used to drive the limiting block to limit the limiting cone. Four groups of limiting blocks and limiting springs are provided, and four groups of limiting blocks and limiting springs are arranged around the installation cavity.

3. The modular assembled steel structure beam-column self-locking connection node according to claim 2, characterized in that: The connecting rods and the limiting truncated cones are provided in two groups, and the two groups of the connecting rods and the limiting truncated cones are symmetrically arranged on both sides of the connecting plate.

4. The modular assembled steel structure beam-column self-locking connection node according to claim 2, characterized in that: The limiting circular table is provided with an equipment cavity, and the locking mechanism includes a moving block and a locking steel ball. The moving block is movably inserted in the equipment cavity, and the locking steel ball is arranged around the moving block. When the limiting circular table is inserted into the locking cavity, the moving block will move along the equipment cavity, thereby pushing the locking steel column out of the equipment cavity.

5. The modular assembled steel structure beam-column self-locking connection node according to claim 2, characterized in that: The water vapor adsorption mechanism includes a protective film, a water-absorbing resin and a sealing rubber block. The water-absorbing resin is arranged in the installation cavity, the protective film is wrapped around the outside of the water-absorbing resin, and the sealing rubber block is arranged in the installation cavity. When the water-absorbing resin absorbs water and expands, it pushes the sealing rubber block to seal the installation cavity.

6. A modular assembled steel structure beam-column self-locking connection node according to claim 5, characterized in that: The press trigger mechanism includes a thorn plate, which is symmetrically arranged on both sides of the limit block. When the limit table pushes the limit block to move along the installation cavity, the thorn plate will pierce the protective film.

7. The modular assembled steel structure beam-column self-locking connection node according to claim 2, characterized in that: The vibration triggering mechanism includes a piston rod and a piston cylinder, one end of the piston rod is connected to the limit block, and the other end of the piston rod is connected to the piston cylinder. The piston cylinder is arranged in the installation cavity, the limit spring is sleeved on the outside of the piston cylinder, and the piston cylinder is connected to the pressurizing mechanism through a pipeline.

8. The modular assembled steel structure beam-column self-locking connection node according to claim 7, characterized in that: The pressurizing mechanism includes an annular tube, a pneumatic push rod, a one-way valve and a pressurizing block. The piston cylinder is connected to the annular tube through a pipeline. The annular tube is connected to several pneumatic push rods. The annular tube and the pneumatic push rods are connected to each other through a one-way valve. The pressurizing block is arranged at the moving end of the pneumatic push rod.

9. A construction method based on the modular prefabricated steel structure beam-column self-locking connection node according to any one of claims 1 to 8, characterized in that: The steps include: A, fixing the fixing member to the beam column; B. Insert one side of the connecting plate into the fixing piece. At this time, the self-locking mechanism will lock the connecting plate and the fixing piece together when they are assembled. When the assembly is completed, the locking mechanism will mechanically lock the connecting plate and the fixing piece. C, when the self-locking mechanism is working, the water vapor adsorption mechanism is triggered to open by the trigger mechanism; D. After completing the assembly of the fixings and the connecting plate, reinforce the connection between the fixings and the connecting plate with angle iron to complete the installation.

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