Integrated mounting frame of tunnel segment punching-free structure
By using an integrated mounting frame with a tunnel segment hole-free structure, and utilizing segment fixing bolts and support frames, the problem of damage to the tunnel sidewalls during the fixing of precision measuring equipment is solved, achieving stable equipment fixing and protection of tunnel integrity.
Patent Information
- Application Number
- CN202520489681.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-03-19
AI Technical Summary
In existing technologies, fixing precision measuring equipment inside a tunnel requires drilling holes in the tunnel sidewalls, which damages the integrity of the tunnel segments and affects the tunnel's waterproofing and stability.
An integrated mounting frame with a tunnel segment hole-free structure is adopted. The equipment is fixed by segment fixing bolts and fixing nuts, and by support frame and locking device, avoiding drilling on the tunnel sidewall.
It enables the fixation of precision measuring equipment, ensuring the integrity and safety of tunnel segments, preventing loosening caused by vibration or external force, and reducing manufacturing costs and installation difficulty.
Smart Images

Figure CN223739417U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tunnel technology, and in particular to an integrated mounting frame for a tunnel segment non-drilling structure. Background Technology
[0002] With the continuous advancement and development of tunnel construction technology, higher requirements have been placed on the stability and safety of tunnel structures. To ensure the safety of tunnels during long-term use, it is necessary to monitor key parameters such as deformation and settlement inside the tunnel in real time. Therefore, precision measuring equipment such as laser rangefinders and hydrostatic levels are widely used inside tunnels. These devices can achieve high-precision deformation monitoring and settlement analysis, providing crucial data support for tunnel maintenance and management.
[0003] However, securing these precision measuring devices within the tunnel presents a significant technical challenge. Traditional installation methods, such as bolt fixing or bracket mounting, require drilling holes in the tunnel sidewalls or other forms of attachment. Modern tunnels, however, are largely constructed using tunnel lining segments, which demand extremely high structural integrity and safety from their sidewalls. Drilling holes in the tunnel sidewalls would not only compromise the integrity of the segments but could also affect the tunnel's waterproofing and long-term operational stability, thus posing a potential threat to tunnel safety. Utility Model Content
[0004] The purpose of this invention is to provide an integrated mounting bracket for tunnel segments that does not require drilling, thereby fixing the testing equipment without drilling into the tunnel sidewalls and ensuring the integrity of the tunnel segments.
[0005] To achieve the above objectives, this utility model provides an integrated mounting frame for a tunnel segment without drilling, including a fixing nut that can be screwed onto the outer end of a segment fixing bolt and a support frame fixed to the fixing nut; the support frame includes an extension plate fixed to the fixing nut and extending outward from the segment groove, and a fixing frame hinged to the extension plate and capable of swinging up and down; when the fixing nut rotates around the segment fixing bolt, the extension plate does not interfere with the segment groove; a locking device is provided between the fixing frame and the extension plate to lock their relative positions; measuring equipment is fixed on the fixing frame.
[0006] With the above structure, the mounting bracket is fixed by screwing the fixing nut onto the outer end of the segment fixing bolt, and then the measuring equipment is fixed by the mounting bracket. This eliminates the need to drill holes in the tunnel sidewall, thus ensuring the integrity of the segment, preventing damage to its strength, and increasing its safety.
[0007] Furthermore, a flat washer and a spring washer are provided between the fixing nut and the segment locking nut. This design prevents loosening caused by vibration or other external forces.
[0008] Furthermore, the extension plate includes an integrally formed flat plate, a vertical plate, and a torsion plate connecting the flat plate and the vertical plate; the flat plate is welded to the bottom of the fixing nut and extends outward from the groove of the tube segment; the vertical plate is perpendicular to the flat plate; the torsion plate is twisted to form a 90° connection between the vertical plate and the flat plate; a fixing frame is hinged to the vertical plate. This design reduces the number of parts and assembly steps in the manufacturing process, thereby reducing manufacturing costs and installation difficulty; it also enhances the stability and strength of the structure; the torsion connection of the torsion plate can disperse stress, reduce stress concentration, and improve the load-bearing capacity of the structure.
[0009] Furthermore, the locking device includes a rotating bolt inserted between the fixed frame and the extension plate, and a locking nut tightened at the end of the rotating bolt; when the locking nut is loosened, rotation occurs between the fixed frame and the extension plate; when the locking nut is tightened, the position between the fixed frame and the extension plate is locked. This design allows the fixed frame to be locked in place, ensuring its stability during use.
[0010] Furthermore, the locking device also includes a threaded hole at the bottom of the fixing frame and a tightening bolt installed in the threaded hole, with the inner end of the tightening bolt abutting against the tunnel sidewall. This design further enhances the stability of the fixing frame and prevents shaking or displacement caused by external forces.
[0011] Furthermore, the end of the tightening bolt is fixed with an arc-shaped head, which contacts the tunnel sidewall. This design ensures that the tightening bolt can smoothly abut against the tunnel sidewall.
[0012] Furthermore, the curved head is made of rubber or nylon. This design prevents the curved head from damaging the tunnel sidewalls.
[0013] Furthermore, a knob head with fingerprint markings is provided at the end of the tightening bolt furthest from the tunnel sidewall. This design facilitates manual operation of the knob.
[0014] After adopting the above technical solution, the beneficial effects of this utility model are:
[0015] This utility model provides an integrated mounting bracket for tunnel segments that eliminates the need for drilling. This solves the technical problem in the prior art where drilling is required to fix the testing equipment, causing damage to the tunnel. This utility model achieves the fixation of the testing equipment without drilling into the tunnel sidewalls, thus ensuring the integrity of the tunnel segments. Attached Figure Description
[0016] Figure 1This is a schematic diagram of the integrated mounting frame for a tunnel segment installation without drilling, and its installation on the inner wall of the tunnel.
[0017] Figure 2 yes Figure 1 A schematic diagram of an integrated mounting frame for a tunnel segment hole-free structure.
[0018] Figure 3 This is a schematic diagram of the integrated mounting frame for a tunnel segment non-drilling structure installed on the inner wall of the tunnel, as shown in Embodiment 4.
[0019] Figure 4 yes Figure 3 A front view of an integrated mounting frame for a tunnel segment without drilling structure;
[0020] Figure 5 yes Figure 3 A schematic diagram of an integrated mounting frame for a tunnel segment without the need for drilling.
[0021] In the diagram, 1. Segment fixing bolt, 11. Segment groove, 12. Segment locking nut, 2. Fixing nut, 3. Support frame, 31. Extension plate, 311. Flat plate, 312. Vertical plate, 313. Torsion plate, 32. Fixing frame, 33. Rotary bolt, 34. Locking nut, 35. Threaded hole, 36. Tightening bolt, 361. Arc head, 362. Knob head, 4. Measuring equipment. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings.
[0023] The orientations mentioned in this specification are based on the orientation of the integrated mounting frame of the tunnel segment non-drilling structure of this utility model when it is working normally. They do not limit the orientation during storage and transportation, and only represent relative positional relationships, not absolute positional relationships.
[0024] Example 1:
[0025] like Figure 1 and Figure 2 As shown, an integrated mounting frame for a tunnel segment non-drilling structure includes a fixing nut 2 that can be screwed onto the outer end of a segment fixing bolt 1, and a support frame 3 fixed to the fixing nut 2. The support frame 3 includes an extension plate 31 fixed to the fixing nut 2 and extending outward from the segment groove 11, and a fixing frame 32 hinged to the extension plate 31 and capable of swinging up and down. This design allows the fixing frame 32 to be adjusted in angle according to actual needs to better adapt to the installation requirements of the measuring equipment 4.
[0026] When the fixing nut 2 rotates around the segment fixing bolt 1, the extension plate 31 does not interfere with the segment groove 11, ensuring the smooth installation of the mounting bracket. A locking device is provided between the fixing bracket 32 and the extension plate 31 to lock the position of the fixing bracket 32 and ensure its stability during use.
[0027] The locking device can be a locking bolt, such as a rotating shaft fixed at the end of the extension plate 31, and the fixing bracket 32 rotatably mounted on the rotating shaft. The fixing bracket 32 is screwed with a locking bolt. When the angle is adjusted, tightening the locking bolt and pressing it against the rotating shaft will lock the position of the fixing bracket 32 and the extension plate 31.
[0028] In this embodiment, the locking device includes a rotating bolt 33 inserted between the fixed frame 32 and the extension plate 31, and a locking nut 34 tightened at the end of the rotating bolt 33. When the locking nut 34 is loosened, the fixed frame 32 and the extension plate 31 can rotate; when the locking nut 34 is tightened, the position between the fixed frame 32 and the extension plate 31 is locked. Of course, the locking device can also be other structures, as long as it can lock the angle of the fixed frame 32; this embodiment does not limit this. The measuring device 4 is fixed on the fixed frame 32, thereby realizing high-precision deformation monitoring and settlement analysis.
[0029] By screwing the fixing nut 2 onto the outer end of the segment fixing bolt 1, the mounting bracket is fixed using the segment fixing bolt 1, and then the measuring device 4 is fixed using the mounting bracket. This eliminates the need to drill holes in the tunnel sidewall, thus ensuring the integrity of the segment, preventing damage to its strength, and increasing its safety.
[0030] Example 2:
[0031] This embodiment improves upon Embodiment 1 by providing a flat washer and a spring washer between the fixing nut 2 and the segment locking nut 12. The flat washer and spring washer enhance the connection stability between the fixing nut 2 and the segment locking nut 12, preventing loosening due to vibration or other external forces.
[0032] Example 3:
[0033] This embodiment is an improvement on Embodiment 1. The extension plate 31 includes an integrally formed flat plate 311, a vertical plate 312, and a torsion plate 313 connecting the flat plate 311 and the vertical plate 312. The flat plate 311 is welded to the bottom of the fixing nut 2 and extends outward from the groove 11 of the tube segment; the vertical plate 312 is perpendicular to the flat plate 311; the torsion plate 313 is twisted to form a 90° connection between the vertical plate 312 and the flat plate 311; a fixing frame 32 is hinged on the vertical plate 312. The integrally formed flat plate 311, vertical plate 312, and torsion plate 313 can reduce the number of parts and assembly steps in the manufacturing process, thereby reducing manufacturing costs and installation difficulty; at the same time, it enhances the stability and strength of the structure; the torsion connection of the torsion plate 313 can disperse stress, reduce stress concentration, and improve the load-bearing capacity of the structure.
[0034] The vertical plate 312 is designed to facilitate hinged connection with the fixing frame 32. Specifically, the hinged connection is achieved by having a through hole on the vertical plate 312, in which the fixing frame 32 is hinged, allowing for vertical swing installation.
[0035] Example 4:
[0036] like Figure 3 , Figure 4 and Figure 5 As shown, this embodiment is a further improvement upon Embodiment 1. The locking device also includes a threaded hole 35 at the bottom of the fixing frame 32 and a tightening bolt 36 installed in the threaded hole 35, with the inner end of the tightening bolt 36 abutting against the tunnel sidewall. This further enhances the stability of the fixing frame 32 and prevents shaking or displacement caused by external forces. An arc-shaped head 361 is fixed to the end of the tightening bolt 36, and the arc-shaped head 361 contacts the tunnel sidewall. The arc-shaped head 361 is made of rubber or nylon, and its design reduces damage to the tunnel sidewall caused by the tightening bolt 36. A knob head 362 is provided at the end of the tightening bolt 36 away from the tunnel sidewall, and a fingerprint is provided on the knob head 362. The knob head 362 and the fingerprint allow the operator to more easily rotate the tightening bolt 36 to adjust its tightness.
[0037] This invention provides an integrated mounting bracket for tunnel segments that eliminates the need for drilling into the tunnel sidewalls, thus protecting the integrity and safety of the tunnel structure. Furthermore, the mounting bracket is simple in structure, easy to install, and flexible in adjustment, meeting the fixing requirements of precision measuring equipment 4 and providing strong support for tunnel monitoring and maintenance.
[0038] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.
Claims
1. An integrated mounting frame for a tunnel segment punch-free structure, characterized by: The fixing nut is screwed on the outer end of the segment fixing bolt, and the support frame is fixed on the fixing nut. The support frame comprises an extension plate fixed on the fixing nut and extending outward of the segment groove, and a fixing frame hinged on the extension plate and swingable up and down; the extension plate does not interfere with the segment groove when the fixing nut rotates around the segment fixing bolt; a locking device is arranged between the fixing frame and the extension plate to lock the relative position therebetween; The measuring device is fixed on the fixing frame.
2. An integrated mounting rack for a tunnel segment punch-free structure according to claim 1, characterized in that: A flat gasket and a spring gasket are arranged between the fixing nut and the segment locking nut.
3. An integrated mounting rack for a tunnel segment punch-free structure according to claim 1, characterized in that: The extension plate comprises an integral flat plate, a vertical plate, and a torsion plate connecting the flat plate and the vertical plate. The flat plate is welded on the bottom of the fixing nut and extends outward of the segment groove; the vertical plate is perpendicular to the flat plate; the torsion plate is twisted to form a 90° connection between the vertical plate and the flat plate. The fixing frame is hinged on the vertical plate.
4. An integrated mounting rack for a tunnel segment punch-free structure according to claim 3, characterized in that: The locking device comprises a rotating bolt inserted between the fixing frame and the extension plate, and a locking nut screwed on the end of the rotating bolt. When the locking nut is loosened, the fixing frame and the extension plate are rotatable; when the locking nut is tightened, the position of the fixing frame and the extension plate is locked.
5. An integrated mounting rack for a tunnel segment punch-free structure according to claim 4, characterized in that: The locking device further comprises a threaded hole arranged on the bottom of the fixing frame, and a jacking bolt installed in the threaded hole, with the inner end of the jacking bolt abutting against the tunnel side wall.
6. An integrated mounting rack for a tunnel segment punch-free structure according to claim 5, characterized in that: An arc-shaped head is fixed on the end of the jacking bolt, which contacts the tunnel side wall.
7. An integrated mounting rack for a tunnel segment punch-free structure according to claim 6, characterized in that: The arc-shaped head is made of rubber or nylon.
8. An integrated mounting rack for a tunnel segment punch-free structure according to claim 5, characterized in that: A knob head is arranged on the end of the jacking bolt away from the tunnel side wall, with a fingerprint on the knob head.