Steel structure self-locking type connecting device and connecting method

Abstract

The steel structure self-locking type connecting device structurally comprises a lower column, an upper column and a connector, and the connector is used for connecting the lower column and the upper column; the lower column and the upper column are both of tubular structures, a lower connecting plate is arranged on the upper portion of the inner wall of the lower column, an upper connecting plate is arranged near the lower portion of the inner wall of the upper column, and through holes for clamping the end of the connector are formed in the lower connecting plate and the upper connecting plate. According to the invention, rapid connection between columns can be realized in a short time, the construction efficiency is obviously improved, the connection stability is ensured, and the problem of loosening or falling possibly occurring in a traditional connection mode is effectively avoided. Precise butt joint of the lower column and the upper column can be guaranteed in the connecting process, meanwhile, high bending resistance, shearing resistance and drawing resistance are achieved, various loads of a steel structure in the construction process and later use can be effectively borne, and structural safety and stability are guaranteed.

Description

Technical Field

[0001] The invention relates to a connection device for a steel structure, in particular to a self-locking connection device and a connection method for a steel structure. Background Art

[0002] In the field of modern architecture and engineering, steel structures are widely used in high-rise buildings, bridges, industrial plants and other structures due to their excellent strength, durability and construction flexibility. The design of steel structures usually requires multiple connections of steel components, among which the connection between columns is a key link. Traditional steel structure connection methods usually rely on welding, bolting and other means. These methods have problems such as complex construction, long connection time, high operation intensity of on-site workers, and high cost. In addition, welding and bolting are easily affected by external factors such as weather and environment during the construction process, resulting in delays in the construction period, which in turn affects the overall project progress and quality. Summary of the invention

[0003] The purpose of the present invention is to provide a self-locking connection device for steel structures to solve the problems of complex construction, long construction period and high cost existing in traditional steel structure connections.

[0004] The present invention is implemented as follows: a self-locking connection device for a steel structure, whose structure includes a lower column, an upper column and a connector, the connector is used to connect the lower column and the upper column; the lower column and the upper column are both tubular structures, a lower connecting plate is provided on the upper part of the inner wall of the lower column, an upper connecting plate is provided near the lower part of the inner wall of the upper column, and through holes for clamping the ends of the connector are opened on the lower connecting plate and the upper connecting plate.

[0005] Furthermore, the connector includes a connecting column, a lower limit plate and a lower spring pin arranged at the lower part of the connecting column, and an upper limit plate and an upper spring pin arranged at the upper part of the connecting column.

[0006] Furthermore, the lower spring pin is located below the lower limit plate, and the upper spring pin is located above the upper limit plate.

[0007] Furthermore, there are two lower spring pins, and the two lower spring pins are symmetrically arranged.

[0008] Furthermore, the lower spring pin includes a lower slider, a lower connecting rod connected to the inner end of the lower slider, and a lower spring arranged at the outer end of the lower connecting rod.

[0009] Furthermore, there are two lower connecting rods and two lower springs, and the two lower connecting rods are distributed one lower and one upper, and one left and one right.

[0010] Furthermore, the distance between the lower sliding block and the lower limiting plate matches the thickness of the lower connecting plate.

[0011] Furthermore, a lower slider cavity and a lower spring cavity are provided on the connecting column, a lower mounting hole is provided on the lower slider, and the mounting position of the lower spring corresponds to the lower mounting hole.

[0012] Furthermore, a lower stopper is provided on the inner wall of the lower slider cavity, and a lower protrusion cooperating with the lower stopper is provided on the lower slider.

[0013] A connection method using the above-mentioned self-locking connection device for steel structure, comprising the following steps: S1, connection between the connector and the lower column: insert the lower end of the connector into the through hole of the connection plate of the lower column, during the insertion process, after the lower sliders of the two lower spring pins of the connector contact the hole wall of the through hole of the lower connection plate, continue to move the connector downward, so that the hole wall of the lower connection plate squeezes the outer end of the lower slider; the lower slider squeezes the lower spring through the lower connecting rod at its inner end, thereby moving toward the inside of the connector until the lower spring pin completely passes through the through hole of the lower connection plate; after the lower spring pin passes through the lower connection plate, the lower slider extends outward under the elastic force of the lower spring pin, so that the upper end of the lower slider contacts the lower end of the lower connection plate, and the lower end of the lower limit plate contacts the upper end of the lower connection plate, thereby fixing the lower part of the connector on the lower connection plate; S2. Connection between the upper column and the connector: Use lifting equipment to lift the upper column, and align the lower end of the upper column with the connector fixed on the lower connecting plate; slowly lower the upper column until the lower end of the upper connecting plate of the upper column contacts the upper end of the upper limit plate of the connector; at this time, the upper spring pin of the connector extends to fix the upper column and the connector together.

[0014] The present invention can realize the rapid connection between columns in a short time, significantly improve the construction efficiency, ensure the stability of the connection, and effectively avoid the loosening or falling off problems that may occur in the traditional connection method.

[0015] The present invention can ensure the precise docking of the lower column and the upper column during the connection process, and at the same time has strong bending, shear and tensile resistance, and can effectively withstand various loads of the steel structure during the construction process and later use, ensuring the safety and stability of the structure.

[0016] The components of the present invention can be prefabricated and assembled in the factory. During on-site construction, only the prefabricated components need to be connected, which reduces the complexity and potential safety hazards of on-site operations and effectively controls construction risks. The workload on the construction site is reduced, the installation process is quick and convenient, and it helps to shorten the construction period and reduce construction costs.

[0017] The present invention reduces energy consumption and waste generation at construction sites, reduces impact on the environment, and meets the requirements of green buildings and sustainable development.

[0018] The present invention can be applied to the connection between different types of steel structure columns, has good versatility and flexibility, and can meet the requirements of various complex construction scenes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0021] In the figure: 1, lower column, 2, upper column, 3, connector, 11, lower connecting plate, 21, upper connecting plate, 31, connecting column, 32, lower limit plate, 33, upper limit plate, 34, lower spring pin, 35, upper spring pin, 36, lower slider cavity, 37, lower spring cavity, 38, air hole, 341, lower slider, 342, lower connecting rod, 343, lower spring, 3411, lower mounting hole, 3412, lower protrusion. DETAILED DESCRIPTION

[0022] like Figure 1 and Figure 2 As shown, the present invention comprises a lower column 1, an upper column 2 and a connector 3 for connecting the lower column 1 and the upper column 2 together.

[0023] The lower column 1 and the upper column 2 are both tubular structures, and a lower connecting plate 11 is horizontally arranged near the upper end of the inner wall of the lower column 1, and an upper connecting plate 21 is horizontally arranged near the lower end of the inner wall of the upper column 2. Through holes are provided on the lower connecting plate 11 and the upper connecting plate 21 for the end of the connector 3 to pass through.

[0024] The connector 3 includes a connecting column 31, a lower limit plate 32 disposed at the lower part of the connecting column 31, an upper limit plate 33 disposed at the upper part of the connecting column 31, a lower spring pin 34 disposed at the lower part of the connecting column 31, and an upper spring pin 35 disposed at the upper part of the connecting column 31. The lower limit plate 31 and the upper limit plate 32 are both disposed horizontally, and the distance between the upper side of the lower connecting plate 11 and the lower side of the upper connecting plate 21 is the same as the distance between the upper side of the lower limit plate 32 and the lower side of the upper limit plate 33. The lower spring pin 34 is located below the lower limit plate 31, and the upper spring pin 35 is located above the upper limit plate 32. The shape of the lower limit plate 32 and the upper limit plate 33 can be circular or square.

[0025] There are two lower spring pins 34 at the lower part of the connecting column 31, and the two lower spring pins 34 are symmetrically arranged. The lower spring pins 34 include a lower slider 341, a lower connecting rod 342 connected to the inner end of the lower slider 341, and a lower spring 343 arranged at the outer end of the connecting rod 342. Each lower spring pin 34 consists of two lower connecting rods 342 and two lower springs 343. The two lower connecting rods 342 are arranged horizontally, and they are offset in the vertical and horizontal directions to form a layout of one lower and one upper, one left and one right. Specifically, one lower connecting rod 342 is located at the bottom and slightly biased to the right, while the other lower connecting rod 342 is located at the top and slightly biased to the left, or vice versa (depending on the specific observation angle or layout direction). Such a layout ensures that the connecting rods 342 can provide stable support and connection in both horizontal and vertical directions. At the same time, the four lower connecting rods 342 of the two lower spring pins 34 are not only separated from each other in the same horizontal plane, forming a left-right symmetrical layout, but also form an opposing relationship of one lower and one upper in the vertical direction. Such a layout ensures that each lower connecting rod 342 can be connected to the corresponding component at an optimal angle and position, thereby enhancing the structural stability of the entire lower spring pin 34 .

[0026] The lower slider 341 is kept in an extended state under the action of the lower spring 343, and the outer end of the lower slider 341 protrudes from the connecting column 31. When the lower slider 341 is squeezed by an external force, the lower connecting rod 243 squeezes the lower spring 343, and the lower slider 342 moves into the connecting column 31, and the lower slider 342 can be completely retracted into the connecting column 31. The outer surface of the lower slider 341 is an inclined surface, and the distance between the lower slider 341 and the lower limit plate 32 is equivalent to the thickness of the lower connecting plate 11, that is, the distance between the lower slider 341 and the lower limit plate 32, so that after the lower slider 341 passes through the corresponding through hole of the lower connecting plate 11, the lower limit plate 32 is blocked by the lower connecting plate 11, and the lower slider 341 cannot continue to move downward. At the same time, the lower limit plate 32 provides support for the installation of the upper spring pin 35.

[0027] The cross section of the lower slider 341 is trapezoidal, and the dimension of one end of the lower slider 341 close to the lower limit plate 32 is greater than the dimension of one end of the lower slider 341 away from the lower limit plate 32 .

[0028] The connecting column 31 is provided with a lower slider cavity 36 for accommodating the lower slider 341 and a lower spring cavity 37 for accommodating the lower spring 343. The lower slider 341 is provided with a lower mounting hole 3411 corresponding to the mounting position of the lower spring in the connecting column 31, so that the lower spring 343 can be correctly installed in the lower spring cavity 37 of the connecting column 31 through the piercing mounting hole. Two lower mounting holes 3411 are provided on each lower slider 341 to correspond to the two lower springs 343 of another lower slider 341 opposite thereto. The connecting column 31 is also provided with an air hole 38 connecting the lower spring cavity 37 and the lower mounting hole 3411. The air hole 38 is used to balance the air pressure in the lower spring cavity 37 to ensure that the lower slider 341 and the lower spring 343 can work smoothly and unimpeded.

[0029] A lower stopper 3441 is provided on the inner wall of the lower slider cavity 36 of the connecting column 31 , and a lower protrusion 3412 cooperating therewith is provided on the lower slider 341 . The lower stopper 3441 is used to limit the outward movement range of the lower slider 341 to prevent the lower slider 341 from sliding out of the lower slider cavity 36 .

[0030] The structure and function of the upper spring pin 35 are the same as those of the lower spring pin 34 .

[0031] The steps of the method for connecting the lower column 1 and the upper column 2 using the steel structure self-locking connection device are as follows: S1. Connect the connector 3 to the lower column 1: insert the lower end of the connector 3 into the through hole of the lower connecting plate 11. In the process of inserting the lower end of the connector 3 into the through hole of the lower connecting plate 11, after the lower sliders 341 of the two lower spring pins 34 contact the hole wall of the lower connecting plate 11, as the connector 3 moves downward, the hole wall of the through hole of the lower connecting plate 11 squeezes the lower slider 341, and the lower slider 345 squeezes the lower spring 343, and the lower slider 341 moves toward the inside of the connector 3 until the lower spring pin 34 passes through the through hole of the lower connecting plate 11. After the lower spring pin 34 passes through the through hole of the lower connecting plate 11, the lower slider 341 extends outward under the action of the lower spring 343, and the upper end of the lower slider 341 contacts the lower end of the lower connecting plate 11. At the same time, the lower end of the lower limit plate 32 contacts the upper end of the lower connecting plate 11, so that the lower part of the connector 3 is fixed on the lower connecting plate 11. S2. Connection between the upper column 2 and the connector 3: Use a lifting device to lift the upper column 2, align the lower end of the upper column 2 with the connector 3, and slowly lower the upper column 2 until the lower end of the upper connecting plate 21 of the upper column 2 contacts the upper end of the upper limit plate 33, and the upper spring pin 35 extends out, and the upper column 2 and the connector 3 are fixed together, thus completing the docking of the upper column 2 and the lower column 1.

Claims

1. A self-locking connection device for steel structure, characterized in that: It includes a lower column, an upper column and a connector, and the connector is used to connect the lower column and the upper column; the lower column and the upper column are both tubular structures, a lower connecting plate is arranged on the upper part of the inner wall of the lower column, and an upper connecting plate is arranged near the lower part of the inner wall of the upper column, and through holes for clamping the end of the connector are opened on the lower connecting plate and the upper connecting plate.

2. The self-locking connection device for steel structure according to claim 1, characterized in that: The connector comprises a connecting column, a lower limit plate and a lower spring pin arranged at the lower part of the connecting column, and an upper limit plate and an upper spring pin arranged at the upper part of the connecting column.

3. The self-locking connection device for steel structure according to claim 2, characterized in that: The lower spring pin is located below the lower limit plate, and the upper spring pin is located above the upper limit plate.

4. The self-locking connection device for steel structure according to claim 2, characterized in that: There are two lower spring pins, and the two lower spring pins are symmetrically arranged.

5. The self-locking connection device for steel structure according to claim 2, characterized in that: The lower spring pin comprises a lower slider, a lower connecting rod connected to the inner end of the lower slider, and a lower spring arranged at the outer end of the lower connecting rod.

6. The self-locking connection device for steel structure according to claim 5, characterized in that: There are two lower connecting rods and two lower springs, and the two lower connecting rods are distributed one below and one above, and one on the left and one on the right.

7. The self-locking connection device for steel structure according to claim 5, characterized in that: The distance between the lower sliding block and the lower limiting plate matches the thickness of the lower connecting plate.

8. The self-locking connection device for steel structure according to claim 5, characterized in that: A lower slider cavity and a lower spring cavity are provided on the connecting column, a lower mounting hole is provided on the lower slider, and the mounting position of the lower spring corresponds to the lower mounting hole.

9. The self-locking connection device for steel structure according to claim 8, characterized in that: A lower stopper is arranged on the inner wall of the lower slider cavity, and a lower protrusion cooperating with the lower stopper is arranged on the lower slider.

10. A connection method using the self-locking connection device for steel structure according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Connection between the connector and the lower column: insert the lower end of the connector into the through hole of the connecting plate of the lower column. During the insertion process, when the lower sliders of the two lower spring pins of the connector contact the hole wall of the through hole of the lower connecting plate, continue to move the connector downward so that the hole wall of the lower connecting plate squeezes the outer end of the lower slider; the lower slider squeezes the lower spring through the lower connecting rod at its inner end, thereby moving toward the inside of the connector until the lower spring pin completely passes through the through hole of the lower connecting plate; after the lower spring pin passes through the lower connecting plate, the lower slider extends outward under the elastic force of the lower spring pin, so that the upper end of the lower slider contacts the lower end of the lower connecting plate, and the lower end of the lower limit plate contacts the upper end of the lower connecting plate, thereby fixing the lower part of the connector on the lower connecting plate; S2. Connection between the upper column and the connector: Use lifting equipment to lift the upper column, and align the lower end of the upper column with the connector fixed on the lower connecting plate; slowly lower the upper column until the lower end of the upper connecting plate of the upper column contacts the upper end of the upper limit plate of the connector; at this time, the upper spring pin of the connector extends to fix the upper column and the connector together.

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