A climbing device with tunnel reinforcement mesh positioning function and a method of using the same

Abstract

The application discloses a climbing device with tunnel steel mesh positioning function and a use method thereof, and belongs to the technical field of tunnel steel mesh construction. The climbing device comprises a ladder body, the ladder body comprises two opposite stand columns and a plurality of horizontal rods arranged between the stand columns, and a positioning mechanism is arranged on the ladder body, the positioning mechanism comprises a first horizontal adjusting assembly and a vertical adjusting assembly which are connected with each other, the vertical adjusting assembly is arranged on the ladder body and is used for adjusting the height of the first horizontal adjusting assembly, and the first horizontal adjusting assembly is arranged on the vertical adjusting assembly and comprises a first sleeve and a first telescopic inner tube arranged in the first sleeve, and a first limiting piece is arranged on the first telescopic inner tube. The application can not only realize accurate positioning operation on the steel mesh, but also has the advantages of simple structure, convenient operation and convenience in popularization.

Description

Technical Field

[0001] This invention belongs to the field of tunnel steel mesh construction technology, and more specifically, relates to a climbing device with tunnel steel mesh positioning function and its usage method. Background Technology

[0002] Tunnels are underground engineering structures, classified by purpose as traffic tunnels, hydraulic tunnels, municipal tunnels, and mining tunnels. During tunnel excavation, stress redistributes in the surrounding rock mass; this portion of rock is called the surrounding rock. To prevent deformation or collapse of the surrounding rock, permanent support structures made of reinforced concrete and other materials are constructed along the tunnel perimeter; this structure is called lining. Lining includes various forms such as brick or precast concrete block lining, rubble concrete lining, reinforced concrete lining, and monolithic cast-in-place concrete lining. In shotcrete, steel mesh should be incorporated to improve its shear and flexural strength, enhance its punching shear and bending resistance, improve its overall integrity, reduce shrinkage cracks, and prevent localized spalling.

[0003] Currently, in the construction of tunnel steel mesh reinforcement, manual control and positioning are generally used, which has a large margin of error. Especially at higher positions, the inconvenience of operation further increases the error, posing significant quality risks. Furthermore, manual positioning and welding simultaneously also pose considerable safety hazards. In addition, some sections use double-layer steel mesh, particularly the inner layer. Due to the common over-excavation during tunnel excavation, positioning is difficult, making it more prone to steel mesh misalignment. This will affect the steel mesh and even the initial support's stress, creating quality and even safety risks; it also delays construction progress, increases labor input, and raises costs.

[0004] A search revealed Chinese Patent Application CN 112983488 A, which discloses a rebar mesh positioning and adjustment system for open-cut tunnels. This application includes: a first support plate with a first groove on its upper surface; a second support plate with a second groove on its inner wall and a third ear plate welded to its right side wall; a pair of first telescopic plates positioned between the first and second support plates; a first connecting rod welded to the left end between the pair of first telescopic plates; a pair of second telescopic plates positioned between the first and second support plates; an L-shaped connecting plate welded to the left end between the pair of second telescopic plates, with a pair of second connecting rods welded to its upper surface; an angle adjustment mechanism fixedly connected to the upper surface of the second support plate, with a fourth support plate at its upper end; and a power mechanism fixedly connected to the right side wall of the second support plate, enabling automatic lifting. While this application achieves automatic lifting and adjusting the angle of the rebar mesh, the overall structure of the positioning and adjustment system is relatively complex, hindering its widespread application. Summary of the Invention

[0005] 1. The problem to be solved

[0006] In view of at least some of the problems existing in the prior art, the present invention proposes a climbing device with tunnel steel mesh positioning function and its usage method. The purpose is to solve the problems that the positioning operation of steel mesh is inconvenient and the accuracy cannot be guaranteed during the construction of existing tunnel steel mesh, which easily leads to quality hazards and even safety hazards.

[0007] 2. Technical Solution

[0008] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0009] The present invention provides a climbing device with a tunnel steel mesh positioning function, comprising a climbing ladder body, the climbing ladder body comprising two opposing columns and several horizontal bars disposed between the columns, and a positioning mechanism provided on the climbing ladder body, the positioning mechanism comprising a first horizontal adjustment component and a vertical adjustment component interconnected.

[0010] The vertical adjustment component is mounted on the ladder body and is used to adjust the height of the first horizontal adjustment component.

[0011] The first horizontal adjustment component is disposed on the vertical adjustment component, and includes a first sleeve and a first telescopic inner tube located inside the first sleeve, and the first telescopic inner tube is provided with a first limiting member.

[0012] Furthermore, the first sleeve is horizontally arranged, and the end of the first sleeve is aligned with the uppermost horizontal bar.

[0013] Furthermore, the vertical adjustment component includes a third sleeve and a third telescopic inner tube disposed within the third sleeve; wherein the third sleeve is disposed on the ladder body and the first sleeve is disposed on the third telescopic inner tube.

[0014] Furthermore, the third sleeve is vertically arranged, and the third sleeve is connected to the ladder body through a reinforcing block.

[0015] Furthermore, the side of the column is provided with an extension rod, the end face of which is aligned with the uppermost horizontal bar.

[0016] Furthermore, the ladder body is also provided with a support leg, which is located at the bottom of the column and on the side away from the vertical adjustment component.

[0017] Furthermore, the outrigger is connected to a support assembly, which includes a fourth sleeve and a fourth telescopic inner tube disposed within the fourth sleeve. A reinforcing rod is disposed between the two fourth sleeves, and the reinforcing rod and the upper extension rod are located in the same vertical plane.

[0018] Furthermore, the positioning mechanism also includes a second horizontal adjustment component, which includes a second sleeve and a second telescopic inner tube located inside the second sleeve. The second sleeve is provided with a second limiting member, and the second horizontal adjustment component and the first horizontal adjustment component are telescopically connected by a connector.

[0019] Furthermore, the connecting member is a screw; the first limiting member and the second limiting member are limiting grooves or limiting plates.

[0020] The present invention also provides a method for using a climbing device with tunnel steel mesh positioning function, comprising the following steps:

[0021] S1. Place the ladder on the ground and adjust the position of the first and second limiting members in the horizontal direction according to the type of lining structure to meet the requirements of the position of the steel mesh to be installed.

[0022] S2. Place the inner steel mesh to be installed at the position of the second limiting piece, and adjust the vertical adjustment component to make the steel mesh overlap with the upper installed steel mesh vertically and meet the overlap length requirements.

[0023] S3. Adjust the left and right positions to align the transverse reinforcing bars of the steel mesh with the completed steel mesh, while meeting the lap length requirements, and then weld the connection.

[0024] S4. After the inner steel mesh is installed, remove the ladder. After the steel arch frame is installed, use the same method to position and install the outer steel mesh.

[0025] Furthermore, the specific adjustment method for the positions of the first limiting member and the second limiting member is as follows:

[0026] For the positioning mechanism near the extension rod

[0027] First, press the extension rod against the completed initial support surface. Then, adjust the extension distance of the first telescopic inner tube to the distance between the outer surface of the completed initial support and the surface of the steel arch frame facing the center line of the tunnel, thus completing the adjustment operation of the position of the first limiting component.

[0028] Then, the second horizontal adjustment component is adjusted by the connector so that the distance between the second limiting component and the first limiting component is the height of the steel section used in the steel arch frame, thus completing the adjustment operation of the position of the second limiting component.

[0029] For positioning mechanisms far from the extension rod

[0030] First, based on the actual over- or under-excavation of the surrounding rock, the telescopic length of the second telescopic inner tube needs to be adjusted accordingly. Then, the end of the second telescopic inner tube is placed against the surrounding rock, thus completing the position adjustment operation of the second limiting component.

[0031] Then, the first telescopic inner tube is adjusted by the connector so that the distance between the first limiting member and the second limiting member is the height of the steel section used in the steel arch frame, thus completing the adjustment operation of the position of the first limiting member.

[0032] 3. Beneficial effects

[0033] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0034] (1) The climbing device of the present invention has a positioning function for tunnel steel mesh. By providing a first horizontal adjustment component and a vertical adjustment component on the climbing ladder, it can not only effectively support the steel mesh and facilitate subsequent welding operations, but also adjust the position of the first limiting component to ensure the accuracy of the steel mesh positioning. In addition, the present invention has a simple structure, is easy to operate, and is conducive to promotion.

[0035] (2) A climbing device with tunnel steel mesh positioning function according to the present invention, wherein the positioning mechanism further includes a second horizontal adjustment component, the second horizontal adjustment component includes a second sleeve and a second telescopic inner tube located inside the second sleeve, the second sleeve is provided with a second limiting member, by setting the second limiting member, and adding the first limiting member of the first horizontal adjustment component, the inner and outer steel meshes can be positioned simultaneously, further improving construction efficiency; in addition, combined with the actual over-excavation and under-excavation of the surrounding rock, the telescopic length of the second telescopic inner tube is adjusted accordingly to complete the positioning operation of the second limiting member, which can effectively avoid the problem of deviation in the positioning of the steel mesh caused by the horizontal misalignment on both sides of the climbing ladder.

[0036] (3) A climbing device with tunnel steel mesh positioning function of the present invention, wherein the side of the column is provided with an extension rod, and the inner side of the extension rod and the end of the first sleeve are located in the same vertical plane; when in use, the extension rod is closely attached to the completed initial support surface, so that the length of the extension of the first telescopic inner tube is the distance between the first limiting member and the initial support surface, thereby making the positioning operation of the first limiting member more convenient and faster. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of a climbing device with tunnel steel mesh positioning function according to the present invention;

[0038] Figure 2 This is a schematic diagram of the structure of the first horizontal adjustment component in this invention;

[0039] Figure 3 This is a schematic diagram of the structure of the second level adjustment component in this invention;

[0040] Figure 4 This is a schematic diagram showing the connection between the first horizontal adjustment component and the second horizontal adjustment component in this invention;

[0041] Figure 5 This is a schematic diagram of the vertical adjustment component in this invention;

[0042] Figure 6 This is a schematic diagram of the connection between the support leg and the support assembly in this invention.

[0043] In the diagram: 1. Ladder body; 11. Upright; 12. Horizontal bar; 13. Support leg; 14. Extension bar;

[0044] 2. First horizontal adjustment assembly; 21. First sleeve; 22. First telescopic inner tube; 23. First limiting component;

[0045] 3. Second horizontal adjustment assembly; 31. Second sleeve; 32. Second telescopic inner tube; 33. Second limiting component;

[0046] 4. Vertical adjustment assembly; 41. Third sleeve; 42. Third telescopic inner tube; 43. Reinforcing block;

[0047] 5. Support assembly; 51. Fourth sleeve; 52. Fourth telescopic inner tube; 53. Reinforcing rod;

[0048] 6. Locking parts; 7. Connecting parts. Detailed Implementation

[0049] The present invention will be further described below with reference to specific embodiments.

[0050] Example 1

[0051] like Figure 1 As shown, this embodiment of a climbing device with tunnel steel mesh positioning function includes a climbing ladder body 1. The climbing ladder body 1 includes two opposing columns 11 and several crossbars 12 disposed between the columns 11. Additionally, the bottom of each column 11 is provided with a support leg 13, which is horizontally positioned, and the columns 11 and the support leg 13 are inclined. This effectively increases the ground area of ​​the entire climbing ladder body 1, thereby ensuring the stability of the climbing ladder during use.

[0052] The ladder body 1 is equipped with a positioning mechanism, which includes a first horizontal adjustment component 2 and a vertical adjustment component 4 that are interconnected. The first horizontal adjustment component 2 is used to adjust the horizontal position of the steel mesh to be installed; the vertical adjustment component 4 is mounted on the ladder body 1 and adjusts the vertical position of the steel mesh to be installed by adjusting the vertical position of the first horizontal adjustment component 2.

[0053] Specifically, refer to Figure 2 As shown, the first horizontal adjustment assembly 2 is arranged in two parallel sets, each including a first sleeve 21 and a first telescopic inner tube 22 located within the first sleeve 21, and the two are locked or released by a locking member 6. The locking member 6 can be an existing structure, such as a bolt and nut structure, which will not be described in detail here. Preferably, the bolt can be an L-shaped quick-tightening wrench bolt.

[0054] A first limiting member 23 is provided near the end of the first telescopic inner tube 22. The first limiting member 23 is used to limit the steel mesh to be installed. The first limiting member 23 may be a limiting groove formed on the first telescopic inner tube 22, a limiting piece protruding from the first telescopic inner tube 22, or other existing structures that can limit the steel mesh.

[0055] refer to Figure 5 As shown, the vertical adjustment assembly 4 is arranged in two parallel sets, each including a third sleeve 41 and a third telescopic inner tube 42 disposed within the third sleeve 41. The third sleeve 41 is respectively mounted on the two side columns 11 and is perpendicular to the ground; the first sleeve 21 is horizontally mounted on the third telescopic inner tube 42. The third sleeve 41 and the third telescopic inner tube 42 are also locked or released by a locking member 6.

[0056] In addition, to ensure the stability of the connection between the third sleeve 41 and the column 11, the two are connected by a reinforcing block 43, which is triangular in shape.

[0057] In this example, a climbing device with a tunnel steel mesh positioning function is used by first placing the ladder on a solid ground, then adjusting the position of the first limiting member 23 through the first telescopic inner tube 22 to meet the position requirements of the steel mesh to be installed; then, the steel mesh to be installed is hung on the two first limiting members 23 respectively.

[0058] Next, the height of the first limiting member 23 is adjusted by the third telescopic inner tube 42 so that it overlaps with the upper installed steel mesh and meets the overlap length requirements.

[0059] Then, adjust the left and right positions of the steel mesh to be installed so that it is aligned with the steel mesh that has been completed on one side, while meeting the overlap length requirements, and then weld the connection.

[0060] This embodiment of a climbing device with a tunnel steel mesh positioning function, through the setting of the first horizontal adjustment component 2 and the vertical adjustment component 4, can not only achieve rapid and accurate positioning of the steel mesh to be installed, but also limit it through the first limiting component 23 to prevent positional deviation during welding; in addition, this embodiment uses a ladder as the basis for improvement, and its overall structure is simple and easy to operate, which is conducive to promotion.

[0061] Example 2

[0062] The climbing device with tunnel steel mesh positioning function in this embodiment has the same basic structure as that in embodiment 1. The difference is that an extension rod 14 is provided on the basis of the embodiment to facilitate the positioning of the first limiting member 23.

[0063] Specifically, refer to Figure 1 As shown, the side of the column 11 is provided with an extension rod 14, the end face of which is aligned with the uppermost horizontal bar 12, and the end of the first sleeve 21 is aligned with the uppermost horizontal bar 12.

[0064] In other words, the inner side of the extension rod 14, the inner side of the uppermost crossbar 12, and the end of the first sleeve 21 are located in the same vertical plane. It should be noted that the inner side here refers to the side away from the vertical adjustment component 4.

[0065] This embodiment of a climbing device with tunnel steel mesh positioning function, in use, involves the extension rod 14 being pressed against the completed initial support surface. The extension length of the first telescopic inner tube 22 is the distance between the first limiting member 23 and the initial support surface, thus making the positioning of the first limiting member 23 more convenient and quick. In addition, the extension rod 14 pressing against the completed initial support surface can also provide a certain degree of support for the climbing ladder body 1, thereby further ensuring its operational stability.

[0066] Example 3

[0067] In actual operation, the ladder may be tilted to the left or right, causing a horizontal misalignment between the first horizontal adjustment component 2 away from the extension rod 14 and the first horizontal adjustment component 2 near the extension rod 14. This can lead to the right end of the steel mesh deviating from the preset linear trajectory. To solve this problem, this embodiment of a climbing device with tunnel steel mesh positioning function, based on the above embodiment, also includes a second horizontal adjustment component 3, which is retractably connected to the first horizontal adjustment component 2.

[0068] Specifically, refer to Figure 3 , Figure 4 As shown, the second horizontal adjustment assembly 3 includes a second sleeve 31 and a second telescopic inner tube 32 located within the second sleeve 31. The second sleeve 31 and the second telescopic inner tube 32 are locked or released by a locking member 6.

[0069] The second sleeve 31 is provided with a second limiting member 33 at its end, and the second sleeve 31 is telescopically connected to the first telescopic inner tube 22 via a connector 7. The connector 7 may be a bolt, or a structure with telescopic function as in the prior art.

[0070] This embodiment of a climbing device with tunnel steel mesh positioning function allows for positioning of the horizontal adjustment component on the left side of the ladder (near the extension rod) using the completed initial support surface and steel arch frame. The specific method is as follows:

[0071] First, press the extension rod 14 firmly against the completed initial support surface;

[0072] Next, the telescopic distance of the first telescopic inner tube 22 is adjusted to the distance between the outer surface of the initial support and the surface of the steel arch facing the center line of the tunnel, thus completing the adjustment operation of the position of the first limiting member 23.

[0073] Then, keeping the first limiting member 23 stationary, adjust the second horizontal adjustment component 3 using the connecting member 7 so that the distance between the second limiting member 33 and the first limiting member 23 is equal to the height of the steel section used in the steel arch frame. This completes the adjustment operation of the position of the second limiting member 33. Here, the steel section is generally an H-beam, and its height refers to the distance between the two flanges of the H-beam.

[0074] The horizontal adjustment component on the right side of the ladder (away from the extension rod) can be positioned via the second telescopic inner tube 32, taking into account actual over- and under-excavation situations. The specific method is as follows:

[0075] First, based on the actual over-excavation and under-excavation of the surrounding rock, adjust the extension length of the second telescopic inner tube 32 accordingly (if the length of the second sleeve 31 is the thickness of the inner protective layer of the inner steel mesh, then the extension length of the second telescopic inner tube 32 is the over-excavation distance).

[0076] Next, place the end of the second telescopic inner tube 32 against the surrounding rock, thus completing the position adjustment operation of the second limiting member 33;

[0077] Then, by keeping the position of the second limiting member 33 unchanged, the first telescopic inner tube 22 is adjusted using the connecting member 7 so that the distance between the first limiting member 23 and the second limiting member 33 is the height of the steel section used in the steel arch frame, thus completing the adjustment operation of the position of the first limiting member 23.

[0078] This embodiment of a climbing device with tunnel rebar mesh positioning function utilizes a second horizontal adjustment component 3, combined with the actual over-excavation and under-excavation conditions of the surrounding rock. By extending the second telescopic inner tube 32, the position of the second limiting member 33 is first positioned, followed by the positioning of the first limiting member 23. This effectively prevents deviations in rebar mesh positioning caused by lateral shifts in the ladder's position. Furthermore, in this embodiment, the combination of the second limiting member 33 and the first limiting member 23 of the first horizontal adjustment component allows for simultaneous positioning of both inner and outer layers of rebar mesh, further improving construction efficiency. Additionally, the fact that the end of the second telescopic inner tube 32 rests against the surrounding rock also increases the stability of the ladder body 1.

[0079] This embodiment also provides a method for using a climbing device with tunnel steel mesh positioning function, which includes the following steps:

[0080] S1. Place the ladder on the ground and adjust the position of the first limiting member 23 and the second limiting member 33 in the horizontal direction according to the type of lining structure so that they meet the requirements of the position of the steel mesh to be installed.

[0081] S2. Place the inner steel mesh to be installed at the positions of the two second limiting pieces 33, and adjust the vertical adjustment component 4 so that the steel mesh overlaps with the upper installed steel mesh and meets the overlap length requirements.

[0082] S3. Adjust the left and right positions to align the transverse reinforcing bars of the steel mesh with the completed steel mesh, while meeting the lap length requirements, and then weld the connection.

[0083] S4. After the inner steel mesh is installed, remove the ladder. After the steel arch frame is installed, install the outer steel mesh in the same way. Since the positioning operation of the first limiting member 23 has been completed in the above steps, there is no need to reposition it when installing the outer steel mesh. Simply place the outer steel mesh on the two first limiting members 23, then press the extension rod 14 against the completed initial support surface, and ensure that the end of the second telescopic inner tube 32 is against the surrounding rock. Finally, adjust the left and right positions of the steel mesh.

[0084] Example 4

[0085] To further improve the stability of the ladder body 1 during operation, this embodiment of the climbing device with tunnel steel mesh positioning function is further provided with a support component 5 based on the above embodiment.

[0086] Specifically, refer to Figure 1 , Figure 6 As shown, the support component 5 includes a fourth sleeve 51 and a fourth telescopic inner tube 52 disposed inside the fourth sleeve 51. The fourth sleeve 51 and the fourth telescopic inner tube 52 are locked or released by a locking member 6.

[0087] The fourth sleeve 51 is connected to the support leg 13, and a reinforcing rod 53 is provided between the two fourth sleeves 51 to further improve the overall stability of the support assembly 5. Furthermore, the reinforcing rod 53 and the upper extension rod 14 are located in the same vertical plane. This allows for easy adjustment of the length of the fourth telescopic inner tube 52 based on the measured over-excavation and under-excavation results, ensuring its end abuts against the surrounding rock, thereby guaranteeing the vertical linearity of the steel mesh; it also further increases the stability of the climbing ladder.

[0088] This embodiment of a climbing device with a tunnel steel mesh positioning function can further increase the landing area of ​​the entire ladder by setting the support component 5; in addition, the vertical linearity of the steel mesh can be controlled by extending the fourth telescopic inner tube 52 so that its end abuts against the surrounding rock.

[0089] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A climbing device with tunnel steel mesh positioning function, comprising a climbing ladder body (1), wherein the climbing ladder body (1) comprises two opposing columns (11) and a plurality of crossbars (12) disposed between the columns (11), characterized in that: The ladder body (1) is provided with a positioning mechanism, which includes a first horizontal adjustment component (2) and a vertical adjustment component (4) that are interconnected. The vertical adjustment component (4) is installed on the ladder body (1) and is used to adjust the height of the first horizontal adjustment component (2); The first horizontal adjustment component (2) is disposed on the vertical adjustment component (4), which includes a first sleeve (21) and a first telescopic inner tube (22) located inside the first sleeve (21), and the first telescopic inner tube (22) is provided with a first limiting member (23). The positioning mechanism further includes a second horizontal adjustment component (3), which includes a second sleeve (31) and a second telescopic inner tube (32) located inside the second sleeve (31). The second sleeve (31) is provided with a second limiting member (33), and the second horizontal adjustment component (3) and the first horizontal adjustment component (2) are telescopically connected by a connector (7). The connecting member (7) is a screw; the first limiting member (23) and the second limiting member (33) are limiting grooves or limiting pieces.

2. The climbing device with tunnel steel mesh positioning function according to claim 1, characterized in that: The first sleeve (21) is set horizontally, and the end of the first sleeve (21) is aligned with the uppermost horizontal bar (12).

3. A climbing device with tunnel steel mesh positioning function according to claim 2, characterized in that: The vertical adjustment component (4) includes a third sleeve (41) and a third telescopic inner tube (42) disposed within the third sleeve (41); wherein the third sleeve (41) is disposed on the ladder body (1) and the first sleeve (21) is disposed on the third telescopic inner tube (42).

4. A climbing device with tunnel steel mesh positioning function according to claim 3, characterized in that: The third sleeve (41) is vertically arranged, and the third sleeve (41) is connected to the ladder body (1) through a reinforcing block (43).

5. A climbing device with tunnel steel mesh positioning function according to any one of claims 1-4, characterized in that: The side of the column (11) is provided with an extension rod (14), the end face of which is aligned with the uppermost horizontal bar (12).

6. A climbing device with tunnel steel mesh positioning function according to claim 5, characterized in that: The ladder body (1) is also provided with a support leg (13), which is located at the bottom of the column (11) and on the side away from the vertical adjustment component (4).

7. The method of using the climbing device with tunnel steel mesh positioning function as described in claim 6, characterized in that: Includes the following steps, S1. Place the ladder on the ground and adjust the position of the first limiting member (23) and the second limiting member (33) in the horizontal direction according to the type of lining structure so that they meet the requirements of the position of the steel mesh to be installed. S2. Place the inner steel mesh to be installed at the position of the second limiting piece (33), and adjust the vertical adjustment component (4) so ​​that the steel mesh overlaps with the upper steel mesh and meets the requirements of the overlap length. S3. Adjust the left and right positions to align the transverse reinforcing bars of the steel mesh with the completed steel mesh, while meeting the lap length requirements, and then weld the connection. S4. After the inner steel mesh is installed, remove the ladder. After the steel arch frame is installed, use the same method to position and install the outer steel mesh.

8. The method of using a climbing device with tunnel steel mesh positioning function according to claim 7, characterized in that: The specific adjustment method for the positions of the first limiting member (23) and the second limiting member (33) is as follows: For the positioning mechanism near the extension rod (14) First, place the extension rod (14) close to the completed initial support surface. Then, adjust the extension distance of the first telescopic inner tube (22) to the distance between the outer surface of the completed initial support and the surface of the steel arch frame facing the center line of the tunnel, thus completing the adjustment operation of the position of the first limiting piece (23). Then, the second horizontal adjustment component (3) is adjusted by the connector (7) so that the distance between the second limiting component (33) and the first limiting component (23) is the height of the steel section used in the steel arch frame, thus completing the adjustment operation of the position of the second limiting component (33); For the positioning mechanism that is far from the extension rod (14) First, based on the actual over- or under-excavation of the surrounding rock, the telescopic length of the second telescopic inner tube (32) needs to be adjusted accordingly. Then, the end of the second telescopic inner tube (32) is placed against the surrounding rock, and the position adjustment operation of the second limiting piece (33) is completed. Then, the first telescopic inner tube (22) is adjusted by the connector (7) so that the distance between the first limiting member (23) and the second limiting member (33) is the height of the steel section used in the steel arch frame, thus completing the adjustment operation of the position of the first limiting member (23).

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