Combinable polygonal steel pipe structure

By introducing limiting and positioning components into the hexagonal steel tube structure, the structural instability caused by loose bolts was solved, the stability and reliability of the steel tube connection were improved, and the integrity of the structure was ensured under complex loads.

CN223868323UActive Publication Date: 2026-02-03QINGDAO KEYU STEEL STRUCTURE CO LTD
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Patent Information

Application Number
CN202520379918.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-05
Publication Date
2026-02-03
Estimated Expiration
2035-03-05

AI Technical Summary

Technical Problem

After the steel pipes are assembled, the bolts may gradually loosen due to uneven stress or external factors, resulting in a decrease in the tightness of the connection, affecting the structural stability, and may even lead to deformation or collapse, posing a safety hazard.

Method used

The structure uses a hexagonal steel tube, combined with limiting and positioning components. The design of limiting posts, return springs and knobs prevents bolts from loosening, ensuring the stability and reliability of the steel tube connection.

Benefits of technology

It effectively prevents bolts from loosening during stress, improves the stability and connection reliability of the overall structure, and ensures that the structure maintains its integrity and strength when subjected to complex loads.

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Abstract

The utility model discloses a combinable polygonal steel pipe structure, which relates to the field of polygonal steel pipe structure finishing and comprises two hexagonal steel pipe bodies, a connecting seat is arranged on the outer side of each hexagonal steel pipe body, an inserting hole is formed in the upper end of each connecting seat, one end of each hexagonal steel pipe body is fixedly connected with a positioning block, and the other end of each hexagonal steel pipe body is fixedly connected with a connecting rod. Threaded holes are symmetrically formed in the two ends of the hexagonal steel pipe body and the two ends of the connecting base, threaded columns are in threaded connection with the interiors of the threaded holes, rotary knobs are fixedly connected to the other ends of the threaded columns, assembling blocks are fixedly connected to the two ends of the connecting base, and limiting assemblies are symmetrically installed in the assembling blocks. By the adoption of the structure, structural instability caused by excessive extension or looseness of the bolt in the stress process can be effectively prevented, the overall stability is improved, it is ensured that the whole structure can be kept stable when bearing external force, and the combinable polygonal steel pipe can still keep structural integrity when bearing various complex loads.
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Description

Technical Field

[0001] This utility model belongs to the technical field of multi-faceted steel pipe structure, and specifically relates to a combinable multi-faceted steel pipe structure. Background Technology

[0002] In power transmission lines, angle steel towers are an important support structure, mainly used to support and fix power line equipment. Among angle steel tower structures, polygonal steel pipes, as a new type of structural material, have seen increasingly widespread application in recent years. As the name suggests, polygonal steel pipes have a multi-faceted cross-section. This design allows the steel pipe to distribute pressure more evenly when under stress, thereby reducing stress concentration and improving overall stability and load-bearing capacity. Compared with traditional round steel pipes, polygonal steel pipes have greater structural advantages. The modular polygonal steel pipe is an innovative steel pipe structure that combines the aesthetics and high strength of polygonal steel pipes with the convenience of assembly and easy disassembly.

[0003] Announcement No. "CN221443028U" describes a modular engineering steel pipe, comprising a first pipe body, a connecting block, a positioning rod, a second pipe body, and fixing bolts. The connecting block is snapped into the middle of the outer wall of the first pipe body. The positioning rod is inserted into the upper and lower sides of the outer wall of the first pipe body, and the positioning rod passes through the middle of the top and bottom of the inner cavity of the connecting block and extends to its exterior. The second pipe body is located on the upper side of the connecting block, and the fixing bolts are located on the upper side of the connecting block. This modular engineering steel pipe has a reasonable structural design, reduces the time required for actual installation of engineering steel pipes, facilitates direct connection of steel pipes by operators, improves the efficiency of actual installation of engineering steel pipes, realizes a detachable connection structure for engineering steel pipes, controls the cost of using engineering steel pipes, and is beneficial to the actual use effect of engineering steel pipes.

[0004] While the aforementioned utility model facilitates direct connection of steel pipes by operators, improves the efficiency of actual installation of engineering steel pipes, realizes a detachable connection structure for engineering steel pipes, controls the cost of using engineering steel pipes, and is beneficial to the actual use effect of engineering steel pipes, after the steel pipes are assembled, the bolts will gradually loosen due to uneven stress or external factors. This will lead to a decrease in the tightness of the steel pipe connection, thereby affecting the stability of the entire structure. Moreover, loose bolts not only affect the stability of the structure, but may also cause the steel pipe assembly to deform or collapse under stress, thus posing a safety hazard to personnel and equipment on the construction site. Utility Model Content

[0005] In response to the problems mentioned in the background art, the purpose of this utility model is to provide a combinable multi-faceted steel pipe structure to solve the problem that after the steel pipes are assembled, the bolts will gradually loosen due to uneven stress or external factors. This will lead to a decrease in the tightness of the steel pipe connection, which in turn will affect the stability of the entire structure. Moreover, the loosening of bolts will not only affect the stability of the structure, but may also cause the steel pipe assembly to deform or collapse under stress, thus posing a safety hazard to personnel and equipment at the construction site.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A combinable multi-faceted steel pipe structure includes a hexagonal steel pipe body, two hexagonal steel pipe bodies, a connecting seat on the outside of the hexagonal steel pipe body, an insertion hole at the upper end of the connecting seat, a positioning block fixedly connected to one end of the hexagonal steel pipe body, positioning components installed at both ends of the positioning block, threaded holes symmetrically opened at both ends of the hexagonal steel pipe body and both ends of the connecting seat, threaded posts threadedly connected inside the threaded holes, a knob fixedly connected to the other end of the threaded posts, and assembly blocks fixedly connected to both ends of the connecting seat, with limit components symmetrically installed inside the assembly blocks;

[0008] The limiting assembly includes a cavity, a first return spring, a moving block, a limiting post, a slider, and a push block. The assembly block has symmetrically symmetrically formed cavities. One end of each cavity is fixedly connected to the first return spring, and the other end is fixedly connected to the moving block, which is slidably connected to the cavity. The end of the moving block away from the first return spring is fixedly connected to the limiting post, and the other end of the limiting post extends out of the side of the assembly block. One end of the moving block is fixedly connected to the slider, and the other end of the slider extends out of the assembly block and is fixedly connected to the push block. The outer wall of the knob has symmetrically formed limiting holes arranged in a circular array. The limiting post and the limiting holes are inserted into each other. One end of the assembly block has symmetrically formed sliding grooves that communicate with the cavity. The sliding grooves and the slider are slidably connected. This effectively prevents structural instability caused by excessive elongation or loosening of the bolts during stress, improving overall stability and ensuring the entire structure remains stable under external forces. It also greatly improves the reliability of the connection, allowing the hexagonal steel tube to maintain structural integrity even under various complex loads.

[0009] As a preferred technical solution, symmetrical limit grooves are opened on the outer side wall of the hexagonal steel tube body, and limit blocks are symmetrically fixedly connected to the inner wall of the insertion hole. The limit blocks and the limit grooves are slidably connected, and the hexagonal steel tube body and the insertion hole are plugged in. The sliding design of the limit blocks in the limit grooves can ensure that the connection between the hexagonal steel tube and the connecting seat is more stable and reliable, effectively preventing relative displacement or loosening between the connecting seat and the hexagonal steel tube, and helping to improve the stability and load-bearing capacity of the entire structure.

[0010] As a preferred technical solution, the positioning component includes an internal hole, a second return spring, and a positioning post. Internal holes are provided at both ends of the positioning block. A second return spring is fixedly connected to one end of each internal hole, and a positioning post is fixedly connected to the other end of the second return spring. The positioning post is slidably connected to the internal hole. The positioning post extends outward from the side of the positioning block away from the second return spring and is arc-shaped. A positioning groove is provided at the end of the hexagonal steel tube away from the positioning block. The positioning block and the positioning groove are inserted into each other. Positioning holes are provided at both ends of the positioning groove, and the positioning post is inserted into each positioning hole. This ensures accurate alignment and positioning of the hexagonal steel tubes during assembly, avoiding structural instability or performance degradation caused by assembly errors. It also ensures a tighter connection between the steel tubes and prevents relative displacement or deformation of the steel tubes under stress, thereby enhancing the overall structural strength.

[0011] As a preferred technical solution, a fixing column is symmetrically fixedly connected to one end of the hexagonal steel tube body, and a fixing hole is symmetrically opened at the end of the hexagonal steel tube body away from the fixing column. The fixing column and the fixing hole are plugged in. The matching design of the fixing column and the fixing hole makes the connection between the hexagonal steel tubes tighter, which helps to improve the load-bearing capacity of the entire structure.

[0012] In summary, the present invention has the following main advantages:

[0013] First, in this utility model, the hexagonal steel pipe body is connected to the connecting seat in sequence, and then the push block is pushed so that the moving block moves the limiting post through the slider. The moving block presses against the first return spring, the first return spring is compressed, and at the same time the limiting post retracts into the cavity. Then the knob is rotated so that the threaded post is threadedly connected to the threaded hole. The push block is released, the first return spring is reset, the limiting post pops out and is inserted into the limiting hole, and the knob is limited. This can effectively prevent the structural instability caused by excessive elongation or loosening of the bolt during the stress process, improve the overall stability, ensure that the whole structure can remain stable when subjected to external forces, and greatly improve the reliability of the connection, so that the hexagonal steel pipe can still maintain the integrity of the structure when subjected to various complex loads.

[0014] Secondly, in this utility model, the hexagonal steel pipe body is inserted into the connecting seat, and then another hexagonal steel pipe body is inserted into the other end of the connecting seat, so that the two hexagonal steel pipe bodies are combined. The positioning block is inserted into the positioning groove. During the insertion process, the squeezing force is applied to the arc-shaped end of the positioning post, so that the positioning post presses against the second return spring. The positioning post retracts into the built-in hole. When the positioning post moves to the positioning hole, the positioning post pops out and engages with the positioning hole to complete the positioning. This can ensure that the hexagonal steel pipes can be aligned and positioned during assembly, avoiding structural instability or performance degradation caused by assembly errors. It can ensure that the connection between the steel pipes is tighter and can prevent relative displacement or deformation of the steel pipes during the stress process, thereby enhancing the overall structural strength. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the hexagonal steel pipe body of this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the connector of this utility model;

[0018] Figure 4 This is a cross-sectional three-dimensional structural diagram of the limiting component of this utility model;

[0019] Figure 5 This is a cross-sectional three-dimensional structural diagram of the positioning component of this utility model.

[0020] Reference numerals: 1. Hexagonal steel pipe body; 2. Connecting seat; 3. Limiting groove; 4. Limiting block; 5. Threaded hole; 6. Threaded post; 7. Knob; 8. Positioning groove; 9. Positioning block; 10. Assembly block; 11. Limiting component; 111. Cavity; 112. First return spring; 113. Moving block; 114. Limiting post; 115. Sliding block; 116. Push block; 12. Slide groove; 13. Limiting hole; 14. Positioning component; 141. Internal hole; 142. Second return spring; 143. Positioning post; 15. Positioning hole; 16. Fixing post; 17. Fixing hole; 18. Insertion hole. Detailed Implementation

[0021] Example

[0022] refer to Figures 1 to 4The modular multi-faceted steel pipe structure described in this embodiment includes a hexagonal steel pipe body 1, which consists of two hexagonal steel pipe bodies 1. A connecting seat 2 is provided on the outer side of the hexagonal steel pipe body 1. An insertion hole 18 is provided at the upper end of the connecting seat 2. A positioning block 9 is fixedly connected to one end of the hexagonal steel pipe body 1. Positioning components 14 are installed at both ends of the positioning block 9. Threaded holes 5 are symmetrically provided at both ends of the hexagonal steel pipe body 1 and both ends of the connecting seat 2. Threaded posts 6 are threadedly connected inside the threaded holes 5. A knob 7 is fixedly connected to the other end of the threaded posts 6. Assembly blocks 10 are fixedly connected to both ends of the connecting seat 2. Limiting components 11 are symmetrically installed inside the assembly blocks 10.

[0023] The limiting assembly 11 includes a cavity 111, a first return spring 112, a moving block 113, a limiting post 114, a slider 115, and a pusher 116. The assembly block 10 has symmetrically arranged cavities 111 inside. One end of the cavity 111 is fixedly connected to the first return spring 112, and the other end of the first return spring 112 is fixedly connected to the moving block 113. The moving block 113 is slidably connected to the cavity 111. The end of the moving block 113 away from the first return spring 112 is fixedly connected to the limiting post 114, and the other end of the limiting post 114 extends out of the side of the assembly block 10. One end of the moving block 113 is fixedly connected to the slider 115, and the other end of the slider 115 extends out of one end of the assembly block 10 and is fixedly connected to the pusher 116. The outer wall of the knob 7 is symmetrically arranged in a ring-shaped circular array. A limiting hole 13 is provided, and the limiting post 114 is inserted into the limiting hole 13. A sliding groove 12 is symmetrically provided at one end of the assembly block 10. The sliding groove 12 is connected to the inside of the cavity 111. The sliding groove 12 is slidably connected to the slider 115. The hexagonal steel tube body 1 is connected to the connecting seat 2 in sequence. Then, the push block 116 is pushed, so that the moving block 113 drives the limiting post 114 to move through the slider 115. The moving block 113 presses against the first return spring 112, and the first return spring 112 is compressed. At the same time, the limiting post 114 retracts into the cavity 111. Then, the knob 7 is rotated, so that the threaded post 6 is threadedly connected to the threaded hole 5. The push block 116 is released, the first return spring 112 is reset, and the limiting post 114 pops out and inserts into the limiting hole 13 to limit the knob 7.

[0024] refer to Figure 2 The outer side wall of the hexagonal steel pipe body 1 is symmetrically provided with limiting grooves 3, and the inner wall of the insertion hole 18 is symmetrically fixedly connected with limiting blocks 4. The limiting blocks 4 and the limiting grooves 3 are slidably connected. The hexagonal steel pipe body 1 and the insertion hole 18 are inserted into each other. When the hexagonal steel pipe body 1 is inserted into the insertion hole 18 at one end of the connecting seat 2, the limiting blocks 4 on the inner wall of the insertion hole 18 and the limiting grooves 3 on the outer side wall of the hexagonal steel pipe body 1 are slidably connected.

[0025] refer to Figure 4The positioning component 14 includes an internal hole 141, a second return spring 142, and a positioning post 143. Internal holes 141 are provided at both ends of the positioning block 9. A second return spring 142 is fixedly connected to one end of each internal hole 141, and a positioning post 143 is fixedly connected to the other end of the second return spring 142. The positioning post 143 is slidably connected to the internal hole 141. The positioning post 143 extends out of the side of the positioning block 9 away from the second return spring 142 and is arc-shaped. A positioning groove 8 is provided at the end of the hexagonal steel tube body 1 away from the positioning block 9. The positioning block 9 and the positioning groove 8 are inserted into each other. Positioning holes 15 are provided at both ends of the positioning groove 8. The column 143 is inserted into the positioning hole 15. The hexagonal steel tube body 1 is inserted into the connecting seat 2, and then another hexagonal steel tube body 1 is inserted into the other end of the connecting seat 2, so that the two hexagonal steel tube bodies 1 are combined. The positioning block 9 is inserted into the positioning groove 8. During the insertion process, the squeezing force applies pressure to the arc end of the positioning column 143, so that the positioning column 143 presses against the second return spring 142. The second return spring 142 is compressed, and at the same time the positioning column 143 retracts into the inner hole 141. When the positioning column 143 moves to the positioning hole 15, the second return spring 142 returns to its original position, and the positioning column 143 pops out and engages with the positioning hole 15, thus completing the positioning.

[0026] refer to Figure 2 One end of the hexagonal steel pipe body 1 is symmetrically fixedly connected with a fixing post 16. The end of the hexagonal steel pipe body 1 away from the fixing post 16 is symmetrically provided with fixing holes 17. The fixing post 16 and the fixing hole 17 are inserted into each other. The hexagonal steel pipe body 1 is inserted into the insertion hole 18 of the connector 2. Then, another hexagonal steel pipe body 1 is inserted into the insertion hole 18 at the other end of the connector 2, so that the two hexagonal steel pipe bodies 1 are combined and the fixing post 16 is inserted into the fixing hole 17.

[0027] Operating principle and advantages: First, when the hexagonal steel tube body 1 is inserted into the insertion hole 18 at one end of the connecting seat 2, the limiting block 4 on the inner wall of the insertion hole 18 slides into the limiting groove 3 on the outer wall of the hexagonal steel tube body 1. Similarly, when another hexagonal steel tube body 1 is inserted into the insertion hole 18 at the other end of the connecting seat 2, the two hexagonal steel tube bodies 1 are joined together, and the positioning block 9 is inserted into the positioning groove 8. During the insertion process, the squeezing force applies pressure to the arc-shaped end of the positioning post 143, causing the positioning post 143 to press against the second return spring 142. The second return spring 142 is compressed, and at the same time, the positioning post 143 retracts into the inner hole 141. When the positioning post 1 When 43 moves to the positioning hole 15, the second reset spring 142 resets, the positioning pin 143 pops out and engages with the positioning hole 15, completing the positioning. Then, push the push block 116, so that the moving block 113 drives the limiting pin 114 to move through the slider 115. The moving block 113 presses against the first reset spring 112, and the first reset spring 112 is compressed. At the same time, the limiting pin 114 retracts into the cavity 111. Then, rotate the knob 7 to make the threaded pin 6 threadedly connected to the threaded hole 5. Release the push block 116, the first reset spring 112 resets, and the limiting pin 114 pops out and engages with the limiting hole 13 to limit the knob 7.

[0028] This invention can effectively prevent structural instability caused by excessive elongation or loosening of bolts during the stress process, improve overall stability, ensure that the entire structure can remain stable when subjected to external forces, and greatly improve the reliability of the connection, so that the hexagonal steel pipe can still maintain the integrity of the structure when subjected to various complex loads.

Claims

1. A combinable multi-faceted steel pipe structure, comprising a hexagonal steel pipe body (1), characterized in that: Two hexagonal steel pipe bodies (1) are provided. A connecting seat (2) is provided on the outside of the hexagonal steel pipe body (1). An insertion hole (18) is opened at the upper end of the connecting seat (2). A positioning block (9) is fixedly connected to one end of the hexagonal steel pipe body (1). Positioning components (14) are installed at both ends of the positioning block (9). Threaded holes (5) are symmetrically opened at both ends of the hexagonal steel pipe body (1) and both ends of the connecting seat (2). A threaded column (6) is threadedly connected inside the threaded hole (5). A knob (7) is fixedly connected to the other end of the threaded column (6). Assembly blocks (10) are fixedly connected to both ends of the connecting seat (2). Limiting components (11) are symmetrically installed inside the assembly block (10). The limiting component (11) includes a cavity (111), a first reset spring (112), a moving block (113), a limiting post (114), a slider (115), and a push block (116). The assembly block (10) has symmetrically opened cavities (111) inside. The first reset spring (112) is fixedly connected to one end of the cavity (111), and the moving block (113) is fixedly connected to the other end of the first reset spring (112). The moving block (113) is slidably connected to the cavity (111). The limiting post (114) is fixedly connected to the end of the moving block (113) away from the first reset spring (112). The other end of the limiting post (114) extends out of the side end of the assembly block (10). The slider (115) is fixedly connected to one end of the moving block (113), and the other end of the slider (115) extends out of one end of the assembly block (10) and is fixedly connected to the push block (116).

2. The combinable polygonal steel pipe structure according to claim 1, characterized in that: The knob (7) has symmetrically arranged limit holes (13) on its outer side wall through a ring-shaped array, and the limit post (114) is inserted into the limit hole (13).

3. The combinable multi-faceted steel pipe structure according to claim 1, characterized in that: The assembly block (10) has symmetrically provided grooves (12) at one end. The grooves (12) are connected to the interior of the cavity (111). The grooves (12) and the slider (115) are slidably connected.

4. The combinable multi-faceted steel pipe structure according to claim 1, characterized in that: The hexagonal steel pipe body (1) has symmetrically opened limiting grooves (3) on its outer side wall, and the inner wall of the insertion hole (18) is symmetrically fixedly connected to limiting blocks (4). The limiting blocks (4) and the limiting grooves (3) are slidably connected, and the hexagonal steel pipe body (1) and the insertion hole (18) are inserted into each other.

5. A combinable multi-faceted steel pipe structure according to claim 1, characterized in that: The positioning component (14) includes an internal hole (141), a second reset spring (142), and a positioning post (143). The positioning block (9) has internal holes (141) at both ends. The second reset spring (142) is fixedly connected to one end of the internal hole (141), and the positioning post (143) is fixedly connected to the other end of the second reset spring (142). The positioning post (143) is slidably connected to the internal hole (141). The positioning post (143) extends away from the second reset spring (142) from the side end of the positioning block (9) and is arc-shaped.

6. A combinable polygonal steel pipe structure according to claim 5, characterized in that: The hexagonal steel pipe body (1) has a positioning groove (8) at the end away from the positioning block (9). The positioning block (9) and the positioning groove (8) are inserted into each other. Positioning holes (15) are opened at both ends inside the positioning groove (8). The positioning column (143) is inserted into the positioning hole (15).

7. The combinable polygonal steel pipe structure according to claim 1, characterized in that: One end of the hexagonal steel pipe body (1) is symmetrically fixedly connected with a fixing post (16), and the other end of the hexagonal steel pipe body (1) away from the fixing post (16) is symmetrically provided with fixing holes (17), and the fixing post (16) and the fixing hole (17) are inserted into each other.

Citation Information

Patent Citations

  • Combined engineering steel pipe

    CN221443028U