A circular steel pipe concrete support connecting member

Abstract

This utility model discloses a connecting component for a circular steel pipe concrete support, relating to the technical field of steel pipe concrete support. It includes a connecting steel pipe with two symmetrically arranged butt-joint steel pipes. Each butt-joint steel pipe contacts the outer walls of both ends of the connecting steel pipe. A pouring port is fixedly connected to the outer wall of each butt-joint steel pipe, and the inner cavity of the pouring port communicates with the inner cavity of the butt-joint steel pipe. The connecting steel pipe is equipped with a butt-joint mechanism for convenient docking and fixing with the butt-joint steel pipes. This utility model, through the butt-joint mechanism, achieves convenient locking and fixing, realizing dual axial and radial limiting, effectively preventing misalignment of components during the connection process. This not only ensures the docking accuracy between the connecting steel pipe and the butt-joint steel pipes but also further enhances the stability and load-bearing capacity of the connection structure, thereby effectively improving the assembly efficiency of the connecting steel pipe and the butt-joint steel pipes.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe concrete support technology, specifically a connecting component for a circular steel pipe concrete support. Background Technology

[0002] Circular steel-concrete composite supports are composite structural support components consisting of circular cross-section steel pipes and internally filled concrete. Through the constricting effect of the steel pipes on the concrete, the compressive strength and ductility of the concrete are improved. At the same time, the concrete can prevent the thin-walled steel pipes from buckling inward locally. Together, they form a support system with high strength, high stability and good deformation resistance.

[0003] Due to limitations in factory manufacturing capacity and underground transportation conditions, the circular steel pipe concrete support needs to be manufactured in sections and transported to the site. Then, it is assembled on-site using connecting components to assemble the circular steel pipe concrete support into the length and shape required for the project.

[0004] The assembly and connection of existing circular steel pipe concrete supports typically involves on-site assembly using methods such as welding or flange connection. However, welding can lead to stress concentration at the weld joint due to high temperatures, which not only affects the durability of the structure but also hinders subsequent disassembly and maintenance. Flange connection, on the other hand, requires multiple bolts and nuts for connection and fixation, resulting in poor assembly efficiency. Under long-term vibration or complex stress conditions, the bolts and nuts are prone to loosening, leading to a decrease in the shear strength and seismic stability of the connection. Therefore, a connecting component for circular steel pipe concrete supports is provided to eliminate the drawbacks of existing devices. Summary of the Invention

[0005] The purpose of this utility model is to provide a connecting component for a circular steel pipe concrete support to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A circular steel pipe concrete support connecting component includes a connecting steel pipe, on which two butt steel pipes are symmetrically arranged. The two butt steel pipes are respectively in contact with the outer walls of both ends of the connecting steel pipe. The outer walls of the two butt steel pipes are fixedly connected with pouring ports. The inner cavities of the pouring ports are interconnected with the inner cavities of the butt steel pipes. The connecting steel pipe is provided with a docking mechanism for convenient docking and fixing with the butt steel pipes. The docking mechanism includes two docking collars symmetrically fixedly connected to the connecting steel pipes. The two docking collars are located at both ends of the connecting steel pipes, and the two docking steel pipes are slidably sleeved on the outer walls of the two docking collars.

[0007] Based on the above technical solutions, this utility model also provides the following optional technical solutions: In one alternative embodiment, the docking mechanism further includes a sliding assembly disposed on the connecting steel pipe. The sliding assembly includes two sliding rings symmetrically slidably fitted onto the outer wall of the connecting steel pipe, and the outer wall of each of the two sliding rings near one end of the two connecting steel pipes is frustoconical. The connecting steel pipe is provided with a locking component for engaging and limiting the connection with the connecting collar; The docking steel pipe is provided with a first limiting component for docking with the docking slip ring limiting component.

[0008] In one alternative embodiment, the engaging assembly includes multiple fixing blocks that are circumferentially and equidistantly fixed to the inner wall of the connecting steel pipe, and the connecting collar is slidably sleeved on the outer wall of the multiple fixing blocks.

[0009] In one alternative: a limiting groove for sliding the fixed block is provided at the position where the docking collar connects with the fixed block, and a docking groove for sliding the fixed block is provided at the end of the docking collar located away from the fixed block.

[0010] In one alternative embodiment: the first limiting component includes: A fixing collar is fixedly connected to the outer wall of the docking steel pipe. The fixing collar is in contact with the outer wall of one end of the docking slip ring. A limiting collar is fixedly connected to the outer wall of the fixing collar. The limiting collar is slidably sleeved on the outer wall of the docking slip ring. The docking slip ring is equipped with a plug-in component.

[0011] In one alternative embodiment: the plug-in assembly includes: a plurality of limiting plugs that are circumferentially and equidistantly fixed to the end of the docking slip ring near the docking steel pipe, wherein the plurality of limiting plugs penetrate into the interior of the fixing collar, and the outer wall of the end of the plurality of limiting plugs away from the docking slip ring is hemispherical. A second limiting component is provided on the connecting steel pipe; The limiting collar is equipped with a locking component.

[0012] In one alternative embodiment: the second limiting component includes: a plurality of fixed guide plates circumferentially and equidistantly fixed to the outer wall of the connecting steel pipe, the plurality of fixed guide plates and the plurality of limiting rods interleaving with each other, and a sliding groove that matches the outer wall of the fixed guide plate is provided at the contact position between the docking slip ring and the fixed guide plate.

[0013] In one alternative: the locking assembly includes a knurled bolt disposed on the outside of the limiting collar, the knurled bolt passing through the limiting collar to the interior of the mating slip ring, and the knurled bolt being threadedly connected to the mating slip ring.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through its docking mechanism, enables convenient snap-fit ​​docking and locking, achieving dual axial and radial limiting. This effectively prevents misalignment of components during the connection process, ensuring the docking accuracy between the connecting steel pipe and the docking steel pipe, and further enhancing the stability and load-bearing capacity of the connection structure, thereby effectively improving the assembly efficiency of the connecting steel pipe and the docking steel pipe. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the internal structure of the connecting steel pipe of this utility model.

[0017] Figure 3 This is a schematic diagram of the connection structure between the docking slip ring and the limiting rod of this utility model.

[0018] Figure 4 For the present utility model Figure 2 A magnified schematic diagram of the structure at point A in the diagram.

[0019] Attached diagram annotations: 1. Connecting steel pipe; 201. Fixing collar; 202. Butt joint slip ring; 203. Butt joint collar; 204. Limiting collar; 205. Fixing block; 206. Fixing guide plate; 207. Limiting insert rod; 208. Knurled bolt; 209. Butt joint groove; 2010. Limiting slide groove; 3. Butt joint steel pipe; 4. Pouring port. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0021] In one embodiment, such as Figures 1-4 As shown, a circular steel pipe concrete support connecting component includes a connecting steel pipe 1, on which two connecting steel pipes 3 are symmetrically arranged. The two connecting steel pipes 3 are in contact with the outer walls of both ends of the connecting steel pipe 1, and the outer walls of the two connecting steel pipes 3 are fixedly connected with pouring ports 4. The inner cavity of the pouring port 4 is interconnected with the inner cavity of the connecting steel pipe 3. The connecting steel pipe 1 is provided with a docking mechanism for convenient docking and fixing with the connecting steel pipes 3. The docking mechanism includes two docking collars 203 that are symmetrically fixedly connected to the connecting steel pipe 1. The two docking collars 203 are located at both ends of the connecting steel pipe 1, and the two docking steel pipes 3 are slidably sleeved on the outer walls of the two docking collars 203. In this embodiment, during assembly, a docking steel pipe 3 is pushed to contact the outer wall of one end of the connecting steel pipe 1. During this process, the initial docking of the connecting steel pipe 1 and a docking steel pipe 3 can be achieved through the docking mechanism. Then, the docking mechanism can be used to easily lock and fix the connecting steel pipe 1 to a docking steel pipe 3. Then, the operation is repeated on the other docking steel pipe 3. In this way, the connecting steel pipe 1 and the two docking steel pipes 3 can be easily docked and locked. Then, concrete can be delivered into the interior of the docking steel pipe 3 through the pouring port 4. In this way, the circular steel pipe concrete support can be poured and formed. In one embodiment, such as Figures 1-4 As shown, the docking mechanism also includes a sliding assembly disposed on the connecting steel pipe 1; The sliding assembly includes two sliding rings 202 that are symmetrically slidably fitted onto the outer wall of the connecting steel pipe 1. The two sliding rings 202 are respectively frustoconical in shape near one end of the outer wall of the two connecting steel pipes 3. The connecting steel pipe 3 is equipped with a locking component for engaging and limiting the connecting collar 203; The connecting steel pipe 3 is equipped with a first limiting component for connecting with the connecting slip ring 202. The first limiting component includes: a fixing collar 201 fixedly connected to the outer wall of the docking steel pipe 3, the fixing collar 201 contacting the outer wall of one end of the docking slip ring 202, and a limiting collar 204 fixedly connected to the outer wall of the fixing collar 201, the limiting collar 204 slidingly sleeved on the outer wall of the docking slip ring 202. The slip ring 202 is equipped with a plug-in assembly; The plug-in assembly includes: multiple limiting rods 207 that are circumferentially and equidistantly fixed to the end of the docking slip ring 202 near the docking steel pipe 3, the multiple limiting rods 207 all penetrate into the interior of the fixed collar 201, and the outer wall of the end of the multiple limiting rods 207 away from the docking slip ring 202 is hemispherical. A second limiting component is provided on the connecting steel pipe 1; A locking component is provided on the limiting collar 204; The locking assembly includes a knurled bolt 208 disposed on the outside of the limiting collar 204. The knurled bolt 208 passes through the limiting collar 204 to the inside of the docking slip ring 202. The knurled bolt 208 is threadedly connected to the docking slip ring 202. Through the cooperation of the sliding assembly, the first limiting assembly, the plugging assembly and the locking assembly, the purpose of reinforcing and limiting the connection between the connecting steel pipe 1 and the docking steel pipe 3 can be achieved. In one embodiment, such as Figures 2-4As shown, the engaging assembly includes: multiple fixing blocks 205 circumferentially and equidistantly fixed to the inner wall of the connecting steel pipe 3; a connecting collar 203 slidably sleeved on the outer wall of the multiple fixing blocks 205; a limiting groove 2010 for the fixing blocks 205 to slide is provided at the contact position between the connecting collar 203 and the fixing blocks 205; and a connecting groove 209 for the fixing blocks 205 to slide is provided at the end of the connecting collar 203 located away from the limiting groove 2010. Through the mutual cooperation of the connecting collar 203, the connecting groove 209, the limiting groove 2010 and the fixing blocks 205, a convenient docking operation between the connecting steel pipe 1 and the connecting steel pipe 3 can be realized. In one embodiment, such as Figures 1-4 As shown, the second limiting component includes: multiple fixed guide plates 206 circumferentially and equidistantly fixed to the outer wall of the connecting steel pipe 1; the multiple fixed guide plates 206 and multiple limiting rods 207 are interleaved; a sliding groove that matches the outer wall of the fixed guide plate 206 is provided at the contact position between the docking slip ring 202 and the fixed guide plate 206; the multiple fixed guide plates 206 can slide and limit the two docking slip rings 202, effectively preventing misalignment between the limiting rods 207 and the holes and grooves on the fixed sleeve 201.

[0022] The above embodiment discloses a circular steel pipe concrete support connection component. During assembly, a connecting steel pipe 3 is pushed to fit onto the outer wall of a connecting collar 203 until the connecting steel pipe 3 contacts the outer wall of one end of the connecting steel pipe 1. During this process, multiple fixing blocks 205 slide along the inner wall of the connecting groove 209 under the drive of the connecting steel pipe 3. At the same time, the limiting collar 204 moves synchronously under the drive of the fixing collar 201 on the connecting steel pipe 3. When the connecting steel pipe 3 contacts the outer wall of one end of the connecting steel pipe 1, the fixing blocks 205 contact the inner wall of the limiting slide groove 2010. Then, the connecting steel pipe 3 is rotated. At this time, multiple fixing blocks 205 slide along the inner wall of the limiting slide groove 2010 under the drive of the connecting steel pipe 3 until the fixing blocks 205 contact the inner wall of the limiting slide groove 2010 away from the connecting groove 209. This achieves the initial connection between the connecting steel pipe 1 and the connecting steel pipe 3. Then, push a docking slip ring 202 to slide along the outer wall of the connecting steel pipe 1 and the fixed guide plate 206. At this time, multiple limiting rods 207 are inserted into the inside of the fixed collar 201 under the push of a docking slip ring 202, and the docking slip ring 202 slides along the inner wall of the limiting collar 204 until a docking slip ring 202 contacts the outer wall of the fixed collar 201. Then rotate the knurled bolt 208 through the limiting collar 204 and thread it to a docking slip ring 202. At this time, the docking slip ring 202 can be easily locked and fixed by the threaded connection between the knurled bolt 208 and the docking slip ring 202. Then, the operation is repeated on another connecting steel pipe 3, so as to achieve convenient connection and locking of connecting steel pipe 1 and two connecting steel pipes 3. After that, concrete can be delivered into the interior of the connecting steel pipe 3 through the pouring port 4, so as to achieve the purpose of casting and forming the circular steel pipe concrete support.

[0023] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A circular steel pipe concrete support connecting component, comprising a connecting steel pipe (1), wherein two butt steel pipes (3) are symmetrically arranged on the connecting steel pipe (1), the two butt steel pipes (3) respectively contact the outer walls of both ends of the connecting steel pipe (1), and a pouring port (4) is fixedly connected to the outer wall of each of the two butt steel pipes (3), the inner cavity of the pouring port (4) communicating with the inner cavity of the butt steel pipe (3), characterized in that, The connecting steel pipe (1) is provided with a docking mechanism for convenient docking and fixing with the docking steel pipe (3); The docking mechanism includes two docking collars (203) symmetrically fixedly connected to the connecting steel pipe (1), the two docking collars (203) being located at both ends of the connecting steel pipe (1), and the two docking steel pipes (3) being slidably sleeved on the outer walls of the two docking collars (203); The docking mechanism also includes a sliding assembly disposed on the connecting steel pipe (1); The sliding assembly includes two sliding rings (202) symmetrically slidingly fitted on the outer wall of the connecting steel pipe (1), and the two sliding rings (202) are respectively frustoconical near one end of the outer wall of the two connecting steel pipes (3); The docking steel pipe (3) is provided with a locking component for locking and limiting the docking collar (203); The docking steel pipe (3) is provided with a first limiting component for limiting docking with the docking slip ring (202).

2. The circular steel pipe concrete support connecting component according to claim 1, characterized in that, The engaging assembly includes: multiple fixing blocks (205) that are circumferentially and equidistantly fixed to the inner wall of the docking steel pipe (3), and the docking collar (203) that is slidably sleeved on the outer wall of the multiple fixing blocks (205).

3. A circular steel pipe concrete support connection component according to claim 2, characterized in that, The docking collar (203) is provided with a limiting groove (2010) at the position where it connects with the fixed block (205) for sliding. The docking collar (203) is provided with a docking groove (209) at the end of the limiting groove (2010) away from the fixed block (205) for sliding.

4. A circular steel pipe concrete support connection component according to claim 2, characterized in that, The first limiting component includes: a fixed collar (201) fixedly connected to the outer wall of the docking steel pipe (3), the fixed collar (201) being in contact with the outer wall of one end of the docking slip ring (202), and a limiting collar (204) fixedly connected to the outer wall of the fixed collar (201), the limiting collar (204) being slidably sleeved on the outer wall of the docking slip ring (202); The docking slip ring (202) is provided with a plug-in component.

5. A circular steel pipe concrete support connecting component according to claim 4, characterized in that, The plug-in assembly includes: a plurality of limiting plugs (207) that are circumferentially and equidistantly fixed to one end of the docking slip ring (202) near the docking steel pipe (3), the plurality of limiting plugs (207) all penetrate into the interior of the fixing collar (201), and the outer wall of the end of the plurality of limiting plugs (207) away from the docking slip ring (202) is hemispherical; A second limiting component is provided on the connecting steel pipe (1); The limiting collar (204) is provided with a locking component.

6. A circular steel pipe concrete support connecting component according to claim 5, characterized in that, The second limiting component includes: multiple fixed guide plates (206) that are circumferentially and equidistantly fixed to the outer wall of the connecting steel pipe (1), the multiple fixed guide plates (206) and multiple limiting rods (207) intersect each other, and a sliding sleeve groove that matches the outer wall of the fixed guide plate (206) is provided at the position where the docking slip ring (202) connects with the fixed guide plate (206).

7. A circular steel pipe concrete support connecting component according to claim 6, characterized in that, The locking assembly includes a knurled bolt (208) disposed on the outside of the limiting collar (204), the knurled bolt (208) passing through the limiting collar (204) to the interior of the mating slip ring (202), and the knurled bolt (208) being threadedly connected to the mating slip ring (202).

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