Tunnel corrugated steel plate reinforcing device

By introducing sealing and protective structures into the tunnel corrugated steel plate reinforcement device, combined with rapid positioning and stabilization measures, the problems of bolt corrosion and loosening were solved, achieving bolt protection and improved structural stability.

CN224300903UActive Publication Date: 2026-05-29CHINA FIRST HIGHWAY ENGINEERING CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202521249799.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-18
Publication Date
2026-05-29
Estimated Expiration
2035-06-18

AI Technical Summary

Technical Problem

Existing tunnel corrugated steel plate reinforcement devices are prone to corrosion in humid and corrosive environments, which leads to a decrease in bolt preload, an increase in loosening gaps, and a reduction in the overall integrity of the reinforced structure.

Method used

A reinforcement device comprising a corrugated plate, a connecting plate, a sealing block, a protective shell, a rectangular strip, and a limiting component is designed. The bolts are covered by a sealing groove, a sealing strip, and a protective shell. The threaded holes are quickly positioned by combining a plug-in block and a plug-in groove. Anti-loosening washers and nuts are used to improve the preload and stability of the bolts.

Benefits of technology

It effectively prevents bolts from rusting in humid environments, reduces the risk of loosening, improves installation efficiency and structural stability, and enhances the reinforcement effect of corrugated steel plates.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224300903U_ABST
    Figure CN224300903U_ABST
Patent Text Reader

Abstract

The utility model belongs to corrugated steel plate technical field, specifically tunnel corrugated steel plate reinforcing device, including the corrugated board, the top of corrugated board is firmly connected with the connecting plate, the side wall of connecting plate top is firmly connected with the sealing block, the top of sealing block is equipped with the sealing groove, the side wall of corrugated board is provided with the protection assembly, the protection assembly includes the protection shell, the protection shell sliding connection is in the side wall of corrugated board, the top of protection shell is firmly connected with the rectangle strip, the middle part of rectangle strip is provided with the limit component, the bottom of protection shell is firmly connected with the sealing strip, the side wall of corrugated board bottom is penetrated and is connected with the bolt of screw thread, the bottom of the side wall of connecting plate is equipped with the threaded hole in sealing block, through the cooperation between the rectangle strip, the protection shell, the sealing strip, the sliding block, the sealing block and the sealing groove, the bolt of fixed wave plate can be protected, guarantees after through the bolt and fixes multiple wave plate together, and the risk of bolt loosening caused by external erosion is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of corrugated steel plate technology, specifically a tunnel corrugated steel plate reinforcement device. Background Technology

[0002] During the construction and long-term operation of tunnel projects, the dynamic changes in the stress field caused by geological tectonic movements, the continuous erosion of groundwater, and the cyclic load impact generated by high-frequency vehicle traffic collectively pose complex mechanical and environmental challenges to the tunnel lining structure. Long-term exposure to these factors makes the lining structure highly susceptible to cracking, deformation, and water leakage, which not only seriously threatens the structural safety and service life of the tunnel but also poses a potential hazard to traffic safety. To address these issues, corrugated steel plate reinforcement technology has become an important method in the field of tunnel reinforcement due to its high construction efficiency and excellent structural strength.

[0003] In existing technologies, most tunnel corrugated steel plate reinforcement devices adopt a structure of multiple sets of arc-shaped corrugated steel plates spliced ​​together. In actual construction, multiple sets of corrugated steel plates need to be fastened together one by one with bolts, and then the whole device is installed on the inner wall of the tunnel.

[0004] However, the bolts that fix the corrugated steel plates are exposed to the complex environment of the tunnel, which is humid and dusty for a long time. They are easily corroded by water vapor, corrosive gases and impurity particles, which accelerates the corrosion process of the metal materials and causes the preload to gradually decrease. This leads to loose gaps at the joints of the corrugated steel plates, resulting in a decrease in the overall integrity of the reinforced structure. Therefore, a tunnel corrugated steel plate reinforcement device is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a tunnel corrugated steel plate reinforcement device.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The tunnel corrugated steel plate reinforcement device of this utility model includes a corrugated plate; a connecting plate is fixedly connected to the top of the corrugated plate, a sealing block is fixedly connected to the side wall of the top of the connecting plate, a sealing groove is opened on the top of the sealing block, a protective component is provided on the side wall of the corrugated plate, the protective component includes a protective shell, the protective shell is slidably connected to the side wall of the corrugated plate, a rectangular strip is fixedly connected to the top of the protective shell, a limit component is provided in the middle of the rectangular strip, a sealing strip is fixedly connected to the bottom of the protective shell, a bolt is threadedly connected to the side wall of the bottom of the corrugated plate, and a threaded hole is opened on the side wall of the connecting plate at the bottom of the sealing block.

[0007] Preferably, the limiting component includes a rod, the outer wall of which is slidably connected to the middle of the rectangular strip, the side wall of the corrugated plate has a groove, the rod is inserted into the middle of the groove, and a spring is sleeved on the outer wall of the rod, one end of which is fixed to the side wall of the rectangular strip, and the other end of which is fixed to the outer wall of the rod.

[0008] Preferably, the connecting plate has a plug-in block fixed to its side wall, the corrugated plate has a through groove at its bottom, the through groove has a plug-in slot in the middle, and the outer wall of the plug-in block and the inner wall of the plug-in slot are both T-shaped.

[0009] Preferably, the protective component further includes a slider, and the side wall of the corrugated plate is provided with a groove, and the slider is slidably connected to the middle of the groove.

[0010] Preferably, multiple sets of the insert rods and springs are provided, and the multiple sets of insert rods and springs are symmetrically arranged with the center line of the rectangular strip as the axis of symmetry. A pull plate is fixed to the end of each insert rod, and the ends of the multiple sets of insert rods are fixed to the other end of the pull plate.

[0011] Preferably, the outer wall of the bolt is fitted with an anti-loosening washer, and the outer wall of the bolt end is threaded with a nut.

[0012] Preferably, the outer wall of the plug block and the inner wall of the plug groove are interference fit.

[0013] The beneficial effects of this utility model are:

[0014] 1. This utility model provides a tunnel corrugated steel plate reinforcement device. Through the cooperation between the rectangular strip, protective shell, sealing strip, slider, sealing block and sealing groove, the bolts fixing the corrugated plate can be protected, and the risk of the bolts loosening due to external corrosion is reduced after multiple sets of corrugated plates are fixed together by bolts.

[0015] 2. This utility model provides a tunnel corrugated steel plate reinforcement device. Through the cooperation between the connecting plate, the plug block and the plug groove, it ensures that the bolt holes can be quickly positioned and installed when multiple sets of corrugated plates are installed, thus improving the installation efficiency. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is a perspective view of the overall device of this utility model;

[0018] Figure 2 This is a three-dimensional sectional view of the overall device in this utility model after being split apart;

[0019] Figure 3 This is a three-dimensional sectional view of the corrugated plate and protective shell in this utility model.

[0020] Figure 4 This is a three-dimensional view of the insert rod and protective shell in this utility model;

[0021] Figure 5 This utility model Figure 2 A magnified 3D view of region A;

[0022] Figure 6 This utility model Figure 2 A magnified 3D view of region B.

[0023] Legend:

[0024] 1. Corrugated plate; 2. Connecting plate; 3. Rectangular strip; 31. Protective shell; 32. Sealing strip; 33. Slider; 4. Pull plate; 41. Insert rod; 42. Spring; 5. Sealing block; 51. Sealing groove; 6. Insertion block; 7. Slide groove; 8. Through groove; 9. Bolt; 10. Insertion groove; 11. Groove; 12. Anti-loosening washer; 13. Nut. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Specific implementation examples are given below.

[0027] Please see Figures 1-6This utility model provides a tunnel corrugated steel plate reinforcement device, including a corrugated plate 1; a connecting plate 2 is fixedly connected to the top of the corrugated plate 1, a sealing block 5 is fixedly connected to the side wall of the top of the connecting plate 2, a sealing groove 51 is opened on the top of the sealing block 5, a protective component is provided on the side wall of the corrugated plate 1, the protective component includes a protective shell 31, the protective shell 31 is slidably connected to the side wall of the corrugated plate 1, a rectangular strip 3 is fixedly connected to the top of the protective shell 31, a limit component is provided in the middle of the rectangular strip 3, a sealing strip 32 is fixedly connected to the bottom of the protective shell 31, a bolt 9 is threadedly connected to the bottom side wall of the corrugated plate 1, and a threaded hole is opened on the side wall of the connecting plate 2 at the bottom of the sealing block 5; during operation, when it is necessary to use the corrugated plate 1 to reinforce the inner side of the tunnel, the worker needs to To combine multiple sets of corrugated plates 1, simply insert the connecting plate 2 fixed to the top of one set of corrugated plates 1 into the middle of the through groove 8 opened at the bottom of another set of corrugated plates 1, and then fix the multiple sets of corrugated plates 1 together with bolts 9. After the bolts 9 are installed, the limiting component can be released from the limiting component on the rectangular strip 3. Then push the rectangular strip 3 to move the protective shell 31 so that the protective shell 31 covers the bolts 9 until the bottom of the protective shell 31 contacts the sealing block 5 set on the top of another set of corrugated plates 1. At this time, the sealing strip 32 will also follow the protective shell 31 and be inserted into the middle of the sealing groove 51 opened at the top of the other set of sealing blocks 5. This can protect the bolts 9 that are fixed in multiple sets, reduce the risk of the bolts 9 loosening due to external corrosion, and improve practicality.

[0028] Furthermore, such as Figures 2-3 and Figure 6 As shown, the limiting component includes a rod 41, the outer wall of which is slidably connected to the middle of the rectangular strip 3. A groove 11 is provided on the side wall of the corrugated plate 1, and the rod 41 is inserted into the middle of the groove 11. A spring 42 is sleeved on the outer wall of the rod 41, one end of which is fixed to the side wall of the rectangular strip 3, and the other end is fixed to the outer wall of the rod 41. During operation, when it is necessary to release the limiting component from the rectangular strip 3, simply pull the pull plate 4, which will move the rod. When the rod 41 moves, it will compress the spring 42 to cause it to deform elastically until the rod 41 disengages from the center of the groove 11. At this time, the rectangular bar 3 can be pushed to move and adjust the position of the protective shell 31 until the rod 41 coincides with another set of grooves 11. When the pull plate 4 is released, the spring 42 will push the rod 41 to move in the opposite direction to reset through its own elasticity, so that the rod 41 is inserted into the center of another set of grooves 11, and the rectangular bar 3 is limited again to ensure the protective shell 31 protects the bolt 9.

[0029] Furthermore, such as Figures 1-3As shown, the connecting plate 2 has a plug-in block 6 fixed to its side wall, the corrugated plate 1 has a through groove 8 at its bottom, and a plug-in groove 10 is formed in the middle of the through groove 8. The outer wall of the plug-in block 6 and the inner wall of the plug-in groove 10 are both T-shaped. During operation, when multiple sets of corrugated plates 1 are spliced, the connecting plate 2 fixed at the top of a set of corrugated plates 1 is inserted into the middle of the through groove 8. During the insertion process, it is necessary to ensure that the plug-in block 6 is inserted into the middle of the plug-in groove 10. In this way, the threaded holes of multiple sets of corrugated plates 1 will be quickly positioned. The supporting force of the plug-in block 6 inserted into the middle of the plug-in groove 10 can also ensure that the threaded holes of multiple sets of corrugated plates 1 will not shift when the bolt 9 is installed. This ensures that no tool is needed to be inserted into the threaded hole for positioning when installing the bolt 9, which improves convenience.

[0030] Furthermore, as shown in the figure, the protective component also includes a slider 33. The side wall of the corrugated plate 1 is provided with a sliding groove 7. The slider 33 is slidably connected to the middle of the sliding groove 7. When the protective shell 31 moves, it will drive the slider 33 to slide in the middle of the sliding groove 7 to ensure the stability of the protective shell 31 moving on the side wall of the corrugated plate 1.

[0031] Furthermore, such as Figure 4 As shown, multiple sets of the insertion rods 41 and springs 42 are provided, and the multiple sets of insertion rods 41 are symmetrically arranged with the center line of the rectangular bar 3 as the axis of symmetry. The end of each insertion rod 41 is fixed to a pull plate 4, and the ends of the multiple sets of insertion rods 41 are fixed to the side wall of the other end of the pull plate 4. During operation, the multiple sets of insertion rods 41 and springs 42 can improve the stability of limiting the rectangular bar 3, while the pull plate 4 can ensure that the multiple sets of insertion rods 41 move synchronously, thus improving convenience.

[0032] Furthermore, such as Figure 2 and Figure 6 As shown, the outer wall of the bolt 9 is fitted with an anti-loosening washer 12, and the outer wall of the end of the bolt 9 is threaded with a nut 13. During operation, the bolt 9 and the nut 13 can be used to stably fix multiple sets of corrugated plates 1. In addition, when installing the bolt 9 and the nut 13, an anti-loosening washer 12 can be fitted on the outer wall of the bolt 9. The anti-loosening washer 12 can increase the preload of the bolt 9 and ensure the stability of the installation between multiple sets of corrugated plates 1.

[0033] Furthermore, such as Figures 1-3 As shown, the outer wall of the plug block 6 and the inner wall of the plug groove 10 are interference fit. During operation, by setting the plug block 6 and the inner wall of the plug groove 10 to be interference fit, the risk of the threaded holes of the multiple sets of corrugated plates 1 shifting due to the vibration force of rotating the bolt 9 is reduced after the multiple sets of corrugated plates 1 are spliced.

[0034] Working principle: When corrugated plates 1 are needed to reinforce the inner side of the tunnel, workers need to combine multiple sets of corrugated plates 1. Simply insert the connecting plate 2 fixed to the top of one set of corrugated plates 1 into the middle of the through groove 8 opened at the bottom of another set of corrugated plates 1. During the insertion process, it is necessary to ensure that the plug 6 is inserted into the middle of the plug groove 10. In this way, the threaded holes of multiple sets of corrugated plates 1 will be quickly positioned. The supporting force of the plug 6 inserted into the middle of the plug groove 10 can also ensure that the threaded holes of multiple sets of corrugated plates 1 will not shift when the bolts 9 are installed.

[0035] Then, multiple sets of corrugated plates 1 are fixed together using bolts 9. After the bolts 9 are installed, the pull plate 4 can be pulled, which will move the insert rod 41. The insert rod 41 will compress the spring 42 to cause it to deform elastically until the insert rod 41 is disengaged from the center of the groove 11. At this time, the rectangular bar 3 can be pushed to move, which will move the protective shell 31 to cover the bolts 9 until the bottom of the protective shell 31 contacts the sealing block 5 set on the top of another set of corrugated plates 1. At this time, the sealing bar 32 will also follow the protective shell 31 and insert into the center of the sealing groove 51 opened on the top of the other set of sealing blocks 5. This can protect the bolts 9 that are fixed together. At this time, the insert rod 41 will coincide with the other set of grooves 11. The pull plate 4 can be released. At this time, the spring 42 will push the insert rod 41 to move in the opposite direction to reset through its own elasticity, so that the insert rod 41 is inserted into the center of the other set of grooves 11, and the rectangular bar 3 is limited again. This can reduce the risk of the bolts 9 being loosened by external corrosion and improve practicality.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A tunnel corrugated steel plate reinforcement device, comprising a corrugated plate (1); characterized in that: A connecting plate (2) is fixedly connected to the top of the corrugated plate (1). A sealing block (5) is fixedly connected to the side wall of the top of the connecting plate (2). A sealing groove (51) is opened on the top of the sealing block (5). A protective component is provided on the side wall of the corrugated plate (1). The protective component includes a protective shell (31). The protective shell (31) is slidably connected to the side wall of the corrugated plate (1). A rectangular strip (3) is fixedly connected to the top of the protective shell (31). A limit component is provided in the middle of the rectangular strip (3). A sealing strip (32) is fixedly connected to the bottom of the protective shell (31). A bolt (9) is threadedly connected to the side wall of the bottom of the corrugated plate (1). A threaded hole is opened on the side wall of the connecting plate (2) at the bottom of the sealing block (5).

2. The tunnel corrugated steel plate reinforcement device according to claim 1, characterized in that: The limiting component includes a rod (41), the outer wall of which is slidably connected to the middle of the rectangular strip (3). The side wall of the corrugated plate (1) has a groove (11), the rod (41) is inserted into the middle of the groove (11), and a spring (42) is sleeved on the outer wall of the rod (41). One end of the spring (42) is fixed to the side wall of the rectangular strip (3), and the other end of the spring (42) is fixed to the outer wall of the rod (41).

3. The tunnel corrugated steel plate reinforcement device according to claim 1, characterized in that: The connecting plate (2) has a plug-in block (6) fixed to its side wall. The corrugated plate (1) has a through groove (8) at its bottom and a plug-in groove (10) in the middle of the through groove (8). The outer wall of the plug-in block (6) and the inner wall of the plug-in groove (10) are both T-shaped.

4. The tunnel corrugated steel plate reinforcement device according to claim 2, characterized in that: The protective assembly also includes a slider (33), and the side wall of the corrugated plate (1) is provided with a groove (7), and the slider (33) is slidably connected to the middle of the groove (7).

5. The tunnel corrugated steel plate reinforcement device according to claim 2, characterized in that: The insertion rod (41) and spring (42) are provided in multiple sets, and the multiple sets of insertion rods (41) are symmetrically arranged with the center line of the rectangular bar (3) as the axis of symmetry. The end of the insertion rod (41) is fixedly connected to the pull plate (4), and the end of the multiple sets of insertion rods (41) is fixedly connected to the other end of the pull plate (4).

6. The tunnel corrugated steel plate reinforcement device according to claim 1, characterized in that: The bolt (9) has an anti-loosening washer (12) fitted on its outer wall, and a nut (13) is threaded onto the outer wall of the end of the bolt (9).

7. The tunnel corrugated steel plate reinforcement device according to claim 3, characterized in that: The outer wall of the plug block (6) and the inner wall of the plug groove (10) are interference fit.