Connecting structure, connecting device and auxiliary mounting equipment
The connection structure, which combines a threaded rod with an open slot, solves the problem of fixed length in traditional tie rod structures, enabling flexibility and stability of the connection structure in tunnel construction, reducing costs and assembly/disassembly difficulties, and improving reusability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY SUNWARD ENG EQUIP CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional tie rod structures have a fixed length in tunnel construction, resulting in poor adaptability, difficulty in disassembly and assembly, low reusability, and high operating costs in the later stages.
The connection structure, which uses a threaded rod and an open slot, allows for length adjustment. Combined with a modular design, it reduces rigid constraints and enables fine-tuning and quick assembly/disassembly.
The overall length of the connection structure is adjustable, which reduces the cost of later use, improves reusability and connection stability, and has strong adaptability.
Smart Images

Figure CN224134664U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of tunnel construction equipment, specifically relating to a connection structure, a connection device, and auxiliary installation equipment. Background Technology
[0002] During the construction of long tunnels, there will be situations where the position needs to be adjusted. For example: 1. After the tunnel is excavated, the stress of the surrounding rock is appropriate, and the installation position of the arch frame may need to be offset by a certain distance. However, the traditional installation and connection device has limited distance compensation capability and is usually fixed installation; 2. The initial support construction of the tunnel needs to be reinforced multiple times as the surrounding rock deforms; 3. When the tunnel collapses or leaks water, temporary supports need to be erected quickly.
[0003] In these working conditions, a mechanical mechanism is used for installation and connection to meet support requirements. Tie rod structures are commonly used, and traditional tie rod structures typically use bolts at both ends for positioning. These bolts are usually fabricated in the factory, and the bolt hole spacing between the two ends is generally fixed, resulting in a fixed overall tie rod length. However, the complex conditions of tunnel construction make tie rod structures highly unsuitable. If welding is used to directly replace bolt connections, the same issues arise: increased difficulty in disassembly and assembly, higher operating costs, and low reusability. Utility Model Content
[0004] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a connection structure, connection device and auxiliary installation equipment, which has an adjustable overall length, is easy to disassemble and assemble, has low later use cost and high reusability.
[0005] The technical solution of this utility model is as follows:
[0006] A connection structure includes: a first mounting part and a body, the first mounting part being disposed at one end of the body; a second mounting part being disposed at the other end of the body, comprising: an opening member having an opening groove; a first end plate being connected to the opening member; a first connector; and a threaded rod fixedly connected to the first connector, the threaded rod being threadedly connected to the first end plate, wherein when the threaded rod is in its longest extended state, the other end of the threaded rod is still placed in the opening groove.
[0007] Preferably, the first mounting part is provided with a first through hole, and the second mounting part is provided with a second through hole, wherein both the first through hole and the second through hole are first mounting holes.
[0008] Preferably, the main body is provided with a second mounting hole, which is used to provide a mounting and fixing position when the two main bodies are installed crosswise, and the mounting hole is located in the middle position.
[0009] Preferably, the connection structure includes a second end plate, wherein the first mounting portion is connected to the end of the body via the second end plate.
[0010] A connecting device includes the above-described connecting structure, a first connector, the first connector being placed between the bodies of two of the connecting structures, and a first fastener passing through the second mounting holes of the two connecting structures and the first connector in sequence to achieve cross-fixation.
[0011] Preferably, it includes: a first column and a second column, the first column and the second column are arranged opposite to each other, the upper side of the first column and the second column are provided with a first mounting seat, the lower side of the first column and the second column are provided with a second mounting seat, and the first mounting seat and the second mounting seat are respectively detachably connected to the connecting structure.
[0012] Preferably, the first mounting base includes: an upper hinge member, the side of which is connected to the upper side of the first column or the upper side of the second column, two upper hinge members are arranged side by side, forming a first receiving groove between them, and the first mounting part is placed in the first receiving groove along the length direction; the connecting device includes a second fastener, the second fastener passing through a first through hole on the upper hinge member and the first mounting part.
[0013] Preferably, the second mounting base includes: a lower hinge member, the side of which is connected to the lower side of the first column or the lower side of the second column; two lower hinge members are arranged side by side, forming a second receiving groove between them; the second mounting part is placed in the second receiving groove along its length; the connecting device includes a third fastener, which passes through a second through hole on the lower hinge member and the second mounting part.
[0014] An auxiliary installation device includes the aforementioned connecting device.
[0015] This application provides a connection structure, including: a first mounting part and a body, the first mounting part being located at one end of the body; and a second mounting part being located at the other end of the body, including: an opening member with an opening groove; a first end plate connected to the opening member; a first connector; and a threaded rod fixedly connected to the first connector, the threaded rod being threadedly connected to the first end plate, wherein when the threaded rod is in its longest extended state, the other end of the threaded rod is still placed in the opening groove. This application also provides a connection device and auxiliary installation equipment. By providing an opening member and an opening groove on the opening member, the threaded rod can move within the opening groove, thus changing the length of the connection structure. This compensates for errors in the pre-processed hole spacing at the factory, preventing hole misalignment and subsequent scrap. Based on mechanical principles, the clearance fit reduces rigid constraints, allowing for fine-tuning at the positions of the first and second mounting parts, avoiding high stress concentration during installation. Furthermore, the modular design allows for quick removal, significantly reducing later costs and maintenance difficulty. Therefore, the connection structure, connection device, and auxiliary installation equipment provided by this application have an adjustable overall length, are easy to disassemble and assemble, have low later operating costs, and high reusability. Attached Figure Description
[0016] Figure 1 A schematic diagram of the connecting device provided by this utility model;
[0017] Figure 2 A schematic diagram of the connecting device provided by this utility model;
[0018] Figure 3 Top view of the connecting device provided by this utility model;
[0019] Figure 4 A schematic diagram of the connection structure provided by this utility model;
[0020] Figure 5 A structural schematic diagram of the second mounting part is provided for this utility model.
[0021] Explanation of reference numerals in the attached figures
[0022] 1. First mounting part; 101. First through hole; 2. Body; 20. Second mounting hole; 3. Second mounting part; 30. Second through hole; 4. Opening part; 5. First end plate; 6. First connector; 7. Threaded rod; 8. Second end plate; 9. First connecting part; 10. First column; 11. Second column; 12. First mounting base; 121. Upper hinge; 122. First receiving groove; 13. Second mounting base; 131. Lower hinge; 132. Second receiving groove; 14. Second fastener; 15. Third fastener. Detailed Implementation
[0023] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.
[0024] In the description of this utility model, it should be understood that the terms "upper" and "lower" indicate orientation or positional relationship only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0025] Figures 1 to 5 As shown, this utility model provides a connection structure, including: a first mounting part 1 and a body 2, the first mounting part 1 being disposed at one end of the body 2; a second mounting part 3 being disposed at the other end of the body 2, including: an opening member 4, the opening member 4 having an opening groove; a first end plate 5, the first end plate 5 being connected to the opening member 4; a first connector 6; and a threaded rod 7 fixedly connected to the first connector 6, the threaded rod 7 being threadedly connected to the first end plate 5, and when the threaded rod 7 is in its longest extended state, the other end of the threaded rod 7 is still placed in the opening groove.
[0026] Compared with the prior art, in the embodiments provided in this application, the connecting structure, by setting an opening 4 and an opening groove on the opening 4, allows the threaded rod 7 to move within the opening groove. This changes the length of the connecting structure, compensating for errors in the pre-processed hole spacing at the factory and preventing misalignment of the holes leading to scrap. Based on mechanical principles, the clearance fit reduces rigid constraints, allowing for fine adjustments at the positions of the first mounting part 1 and the second mounting part 3, avoiding high stress concentration during installation. Moreover, the modular design allows for quick removal, greatly reducing later costs and maintenance difficulty.
[0027] In this embodiment, a threaded connection is employed, utilizing the helix angle principle of the thread. By rotating the threaded rod 7 and moving it within the thread, the overall length of the connection structure can be adjusted. This design allows for fine-tuning of the connection structure's length to adapt to different application scenarios. The threaded connection between the threaded rod 7 and the first end plate 5 allows the threaded rod 7 to extend and retract within the slot, thereby adjusting the overall length of the connection structure. This design increases the flexibility and adaptability of the connection. The slot design ensures that the threaded rod 7 remains confined within the opening 4 even in its fully extended state, preventing it from falling off and increasing the safety of the connection structure. The design of the connection structure allows stress to be evenly distributed across all components, avoiding stress concentration and thus improving the strength and durability of the connection structure. Secondly, the cooperation between the slot and the threaded rod 7 ensures the stability of the connection structure, maintaining reliability even under dynamic loads or vibration environments. Thirdly, the preload of the threaded connection can effectively resist axial loads and shear forces, improving the load-bearing capacity of the connection structure. In summary, this connection structure, through threaded connection, telescopic adjustment and slot design, combined with physical, mechanical and mechanical principles, demonstrates the technical advantages of convenient adjustment, stable connection, simple structure and safety and reliability.
[0028] The first mounting part 1 has a first through hole 101, and the second mounting part 3 has a second through hole 30. Both the first through hole 101 and the second through hole 30 are mounting holes. The design of the first through hole 101 and the second through hole 30 in conjunction with other components allows the tie rod structure to be easily assembled and disassembled. This design reduces the welding requirements caused by misalignment of holes, thereby avoiding the trouble caused by welding and oxygen cutting disassembly, and increasing the possibility of reuse.
[0029] In the embodiments provided by this utility model, the main body 2 is provided with a second mounting hole 20, which provides a mounting and fixing position when two main bodies 2 are installed crosswise. The mounting hole is located in the middle position. The second mounting hole 20 is located in the middle position of the main body 2 and is fixed by fasteners such as bolts, which can effectively improve the stability when the two main bodies 2 are installed crosswise. This design ensures a firm connection at the intersection point and avoids structural aging due to unstable connection. In addition, setting the mounting hole in the middle position can evenly distribute stress and avoid stress concentration, thereby enhancing the overall strength of the structure. This design improves the deformation resistance of the main body 2 when subjected to axial force and shear force. By setting the second mounting hole 20 in the middle position, the installation and disassembly process is more convenient and faster. The second mounting hole 20 in the middle position makes it easier for operators to install and remove fasteners, improving work efficiency. Therefore, the design of the second mounting hole 20 improves connection stability, enhances structural strength, facilitates installation and disassembly, reduces manufacturing difficulty and cost, and improves reusability and adaptability.
[0030] Furthermore, the second end plate 8 connects the first mounting part 1 to the end of the body 2. As a connector, the second end plate 8 firmly links the first mounting part 1 and the end of the body 2 together. This design enhances the strength of the connection, ensuring that the connection will not break or deform under axial and shear forces. Connecting via the second end plate 8 distributes stress over a larger area, avoiding stress concentration. This design improves the durability and safety of the connection, reducing the risk of damage due to stress concentration.
[0031] In the embodiments provided by this utility model, a connecting device includes the aforementioned connecting structure, a first connector 9, and a first fastener placed between the bodies 2 of two connecting structures. A first fastener passes sequentially through the second mounting holes 20 of the two connecting structures and the first connector 9 to achieve cross-fixation. By having the first fastener pass sequentially through the second mounting holes 20 of the two connecting structures and the first connector 9 to achieve cross-fixation, the stability of the connecting structure can be effectively improved. This design ensures a firm connection at the intersection point, avoiding structural failure due to unstable connection. The cross-fixation design can evenly distribute stress, avoiding stress concentration, thereby enhancing the overall strength of the structure. This design improves the deformation resistance of the connecting device when subjected to axial force and shear force. Therefore, the connecting device provided by this application improves connection stability, enhances structural strength, facilitates installation and disassembly, reduces manufacturing difficulty and cost, and improves reusability and adaptability.
[0032] Furthermore, the connecting device includes a first column 10 and a second column 11, which are arranged opposite to each other. A first mounting seat 12 is provided on the upper side of each column, and a second mounting seat 13 is provided on the lower side. The first mounting seat 12 and the second mounting seat 13 are detachably connected to the connecting structure. The opposite arrangement of the first column 10 and the second column 11, along with the detachable connection to the connecting structure via the first mounting seat 12 and the second mounting seat 13, effectively improves the stability of the connecting structure. This design ensures a firm connection between the first column 10 and the second column 11 and the connecting structure, preventing structural failure due to unstable connections. The design of the first column 10, the second column 11, the first mounting seat 12, and the second mounting seat 13 can evenly distribute stress, avoiding stress concentration and thus enhancing the overall strength of the structure. This design improves the deformation resistance of the connecting device when subjected to axial and shear forces.
[0033] The first mounting base 12 includes an upper hinge 121, the side of which is connected to the upper side of the first column 10 or the upper side of the second column 11. Two upper hinges 121 are arranged side-by-side, forming a first receiving groove 122 between them. The first mounting part 1 is placed within the first receiving groove 122 along its length. The connecting device includes a second fastener 14, which passes through the hinge 121 and the first through hole 101 on the first mounting part 1. The first receiving groove 122 is designed with multiple considerations in mind: firstly, it allows relative freedom in the length direction, permitting thermal expansion and contraction; secondly, it limits movement in the width direction to prevent tipping; and thirdly, it provides compression and bending resistance in the height direction. This structure ensures stability while releasing excessive constraint forces. While a single hinge point is a statically determinate support, the double hinge point design of this application forms a statically indeterminate structure, significantly reducing stress concentration.
[0034] Additionally, the second mounting base 13 includes: a lower hinge member 131, the side of which is connected to the lower side of the first column 10 or the lower side of the second column 11; two lower hinge members 131 are arranged side by side, forming a second receiving groove 132 between them; and the second mounting part 3 is placed in the second receiving groove 132 along its length. The connecting device includes a third fastener 15, which passes through a second through hole 30 on the lower hinge member 131 and the second mounting part 3. In this embodiment, at the first mounting base 12 and the second mounting base 13, the double hinged joints form two receiving grooves. The first mounting part 1 and the second mounting part 3 are both located along the length direction, and the transverse fasteners are connected through the joint. This structure has several advantages: First, it uses contact pressure to replace shear force, reducing the load on the fasteners; second, the clearance fit allows for thermal deformation compensation; third, the double hinged joints form redundant support to reduce stress concentration; and fourth, it features a modular disassembly design. As can be seen, the connection device provided in this application can solve the core technology of the three major contradictions of high load-bearing capacity, vibration resistance, and quick disassembly and assembly in heavy support equipment. Its principle can also be extended to bridge bearings, engineering machinery joints, and other scenarios, which can greatly improve the overall efficiency.
[0035] This application also provides an auxiliary installation device, including the above-mentioned connecting device, which also possesses all the technical advantages of the connecting device, and will not be described in detail here.
[0036] The embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other.
[0037] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A connection structure characterized by comprising: include: The first mounting part (1) and the main body (2) are provided at one end of the main body (2); The second mounting part (3) is located at the other end of the main body (2) and includes: An opening member (4) is provided with an opening groove; The first end plate (5) is connected to the opening (4); First connector (6); And a threaded rod (7) fixedly connected to the first connector (6), the threaded rod (7) being threadedly connected to the first end plate (5), and when the threaded rod (7) is in its longest extended state, the other end of the threaded rod (7) is still placed in the opening groove.
2. The connection structure according to claim 1, characterized in that, The first mounting part (1) is provided with a first through hole (101), and the second mounting part (3) is provided with a second through hole (30). Both the first through hole (101) and the second through hole (30) are first mounting holes.
3. The connection structure according to claim 2, characterized in that, The main body (2) is provided with a second mounting hole (20), which is used to provide a mounting and fixing position when the two main bodies (2) are installed crosswise. The mounting hole is located in the middle position.
4. The connection structure according to claim 3, characterized in that The connection structure includes: The second end plate (8) is used to connect the first mounting part (1) to the end of the body (2).
5. A connection device, characterized in that Includes the connection structure described in any one of claims 1 to 4, The first connector (9) is placed between the bodies (2) of the two connecting structures. The first fastener passes through the second mounting holes (20) of the two connecting structures and the first connector (9) in sequence to achieve cross-fixation.
6. The connecting device according to claim 5, characterized in that, include: The first column (10) and the second column (11) are arranged opposite to each other. The upper side of the first column (10) and the second column (11) are provided with a first mounting seat (12), and the lower side of the first column (10) and the second column (11) are provided with a second mounting seat (13). The first mounting seat (12) and the second mounting seat (13) are respectively detachably connected to the connecting structure.
7. The connection device according to claim 6, characterized in that The first mounting base (12) includes: The upper hinge (121) is connected to the upper side of the first column (10) or the upper side of the second column (11) on the side. The two upper hinges (121) are arranged side by side, forming a first receiving groove (122) between them. The first mounting part (1) is placed in the first receiving groove (122) along the length direction. The connecting device includes a second fastener (14) that passes through the upper hinge (121) and the first through hole (101) on the first mounting part (1).
8. The connection device according to claim 7, characterized in that The second mounting base (13) includes: The lower hinge (131) is connected to the lower side of the first column (10) or the lower side of the second column (11) on its side. The two lower hinges (131) are arranged side by side, forming a second receiving groove (132) between them. The second mounting part (3) is placed in the second receiving groove (132) along the length direction. The connecting device includes a third fastener (15) that passes through a second through hole (30) on the lower hinge (131) and the second mounting portion (3).
9. An installation aid, characterized in that Includes the connecting device as described in any one of claims 5 to 8.