Tunnel anchor secondary lining trolley

Abstract

The utility model relates to a tunnel anchor secondary lining trolley, and relates to the technical field of road and bridge construction, the tunnel anchor secondary lining trolley comprises a supporting table, rolling wheels rolling on a guide rail are rotatably arranged at the bottom of the supporting table, inclined tables are rotatably arranged on the two sides of the supporting table, and guide rail grooves allowing the guide rail to be inserted are formed in the inclined tables; a fixing rivet capable of being nailed into the ground is arranged on the inclined table in a sliding mode, a supporting frame is fixedly arranged on the inclined table, a supporting hydraulic cylinder is fixedly arranged on the top of the supporting frame, a bearing main beam is fixedly arranged on a piston rod of the supporting hydraulic cylinder, and a top template is fixedly arranged on the bearing main beam. A plurality of arc-shaped template groups are further arranged outside the supporting frame, and the arc-shaped template groups and the top template can form a template matched with a tunnel. The method has the advantages that manpower and time consumption during template laying is reduced, and obstruction to passing of construction vehicles in the anchor section is avoided as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of road and bridge construction, in particular to a tunnel anchor secondary lining trolley. Background Art

[0002] Energy conservation, emission reduction and environmental protection construction concepts proposed in the rapid development of national infrastructure also require reducing the labor intensity of construction workers. In railway construction, an anchor section is required at a certain interval in the super-long tunnel. The sides and top surfaces of each anchor section are formed by multiple I-beams along the tunnel arc. The outer side of the arc-shaped I-beam is paved with small steel molds to form a template, and then concrete is poured. This method requires a large number of pipe racks, fasteners, clips, etc., and requires a large number of construction workers. In addition, the full width of the pipe rack can effectively ensure the safety of construction. In this way, construction vehicles cannot pass, blocking the normal construction process in front of the anchor section, affecting the normal construction steps, and seriously delaying the construction progress. Utility Model Content

[0003] In order to reduce the manpower and time consumption when laying the template and avoid obstruction to the passage of construction vehicles in the anchor section as much as possible, the present application provides a tunnel anchor secondary lining trolley.

[0004] The present application provides a tunnel anchor secondary lining trolley adopting the following technical solution:

[0005] A tunnel anchor secondary lining trolley comprises a support platform, a roller rolling on a guide rail is rotatably provided at the bottom of the support platform, tilting platforms are rotatably provided on both sides of the support platform, guide rail grooves for inserting the guide rails are opened on the tilting platform, fixing rivets that can be nailed into the ground are slidably provided on the tilting platform, a support frame is fixedly provided on the tilting platform, a supporting hydraulic cylinder is fixedly provided on the top of the support frame, a load-bearing main beam is fixedly provided on the piston rod of the supporting hydraulic cylinder, a top template is fixedly provided on the load-bearing main beam, and a plurality of arc template groups are further provided outside the support frame, and the arc template groups can form a template adapted to the tunnel with the top template.

[0006] By adopting the above technical solution, when constructing an anchor section in the railway, the secondary lining trolley is moved along the guide rail to the corresponding anchor section position, the tilting platform is unfolded, and the tilting platform is stably placed on the ground, and the tilting platform and the entire secondary lining trolley are fixed by fixing rivets. When the construction vehicle passes through this anchor section position, it first drives onto the support platform from the tilting platform on one side of the support platform, and then leaves the support platform from the tilting platform on the other side of the support platform, thereby avoiding obstruction to the passage of construction vehicles in the anchor section as much as possible, and the load-bearing main beam and the top template are driven to rise to the position to be lined by the supporting hydraulic cylinder, and then the arc template group and the top template are combined to form a template suitable for the tunnel, thereby reducing the manpower and time consumption when laying the template.

[0007] Preferably, the arc template group includes a telescopic template, a retractable template, a first hydraulic cylinder, and a second hydraulic cylinder. The first hydraulic cylinder is fixedly set on a support frame, the telescopic template is fixedly set on the piston rod of the first hydraulic cylinder, the second hydraulic cylinder is rotatably set on the support frame, the retractable template is rotatably set on both sides of the telescopic template, and the retractable template is rotatably connected to the piston rod of the second hydraulic cylinder.

[0008] By adopting the above technical solution, when it is necessary to combine the arc template group and the top template to form a template suitable for the tunnel, the first hydraulic cylinder is driven to extend, driving the telescopic template to slide to the arc line where the lining position is located, and then the second hydraulic cylinder is driven to extend, driving the retractable template to rotate and expand to the extension line position of the telescopic template arc. Several arc template groups and the top template are adjacent to each other and combined to form a complete large template suitable for the tunnel.

[0009] Preferably, a fitting stopper is fixedly provided on the telescopic template, and a fitting stopper groove is provided on the retractable template, and the fitting stopper can be inserted into the fitting stopper groove and abut against the fitting stopper groove.

[0010] By adopting the above technical solution, when the second hydraulic cylinder is driven to rotate the retractable template to the extension line position of the telescopic template, the fitting block on the telescopic template is just inserted into the fitting block groove opened on the retractable template, which helps to improve the stability of the retractable template at the angle position of the telescopic template. At the same time, the retractable template can also provide a certain support force from both sides of the telescopic template.

[0011] Preferably, the arc template group also includes a triangular block and a sliding member, wherein the triangular block is fixedly arranged on the sliding member, and the triangular block can simultaneously fit with the side of the rotating connection between the telescopic template and the stowable template, and the sliding member drives the triangular block to approach or move away from the rotating connection between the telescopic template and the stowable template.

[0012] By adopting the above technical solution, when the second hydraulic cylinder is driven to drive the retractable formwork to rotate to the extension line position of the telescopic formwork arc, the triangular block is driven by the sliding member to insert between the telescopic formwork and the retractable formwork, and at the same time abuts against the sides of the telescopic formwork and the retractable formwork, which not only improves the strength of the rotating connection between the telescopic formwork and the retractable formwork, but also avoids the penetration of the rotating connection between the concrete telescopic formwork and the retractable formwork as much as possible, thereby protecting the driving structure inside the large formwork.

[0013] Preferably, the sliding member includes a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably set on the telescopic template, and the other end of the first connecting rod is rotatably set on the triangular block, one end of the second connecting rod is rotatably set on the retractable template, and the other end of the second connecting rod is rotatably set on the triangular block.

[0014] By adopting the above technical solution, when the second hydraulic cylinder is driven to drive the retractable template to expand, the first connecting rod and the second connection rotate accordingly, and at the same time drive the triangular block to approach between the telescopic template and the retractable template until it is fully inserted and sticks to each other at the same time, thereby automatically driving the triangular block to be inserted between the telescopic template and the retractable template.

[0015] Preferably, the support frame is arranged in an arc shape, and the straight line where the sliding direction of the telescopic template is located passes through the center of the support frame.

[0016] By adopting the above technical solution, during the lining process, it is helpful to balance the force on the support frame and improve the bearing capacity of the support frame.

[0017] Preferably, a first bonding block is fixedly provided on the top template, a first bonding block is also fixedly provided on the side of the arc template group away from the top template, and a second bonding block is fixedly provided on the side of the arc template group close to the top template, and the first bonding block is bonded to the adjacent second bonding block.

[0018] By adopting the above technical solution, the connection position between each arc formwork group and the top formwork is arranged by the first bonding block and the adjacent second bonding block. When concrete is poured outside the top formwork and the arc formwork group, the concrete will exert pressure on each formwork. The greater the pressure, the tighter the fit between the first bonding block and the adjacent second bonding block, and it is difficult for concrete to penetrate into the top formwork or the connection between each arc formwork group.

[0019] Preferably, the first fitting block is designed to be integrally formed with the inner wall of the arc-shaped template group or the top template, and the second fitting block is designed to be integrally formed with the outer wall of the arc-shaped template group.

[0020] By adopting the above technical solution, it is convenient for the load-bearing main beam to apply an outward lifting force to the arc-shaped template group step by step, which helps to improve the stability of the secondary lining trolley.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. By setting up support platforms, rollers, tilting platforms, guide rail grooves, fixed rivets, support frames, support hydraulic cylinders, load-bearing main beams, top templates, and arc template groups, the manpower and time consumption when laying the templates can be reduced, and obstacles to the passage of construction vehicles in the anchor section can be avoided as much as possible;

[0023] 2. By setting the telescopic template, the stowage template, the first hydraulic cylinder, the second hydraulic cylinder, the fitting block, and the fitting groove, it is convenient to drive the arc template group and the top template to form a template adapted to the tunnel, which helps to improve the stability of the stowage template at the angle position of the telescopic template. At the same time, the stowage template can also provide a certain support force from both sides of the telescopic template;

[0024] 3. By setting the triangular block, the sliding member, the first connecting rod and the second connecting rod, the strength of the rotating connection between the telescopic formwork and the retractable formwork is improved, and the penetration of the rotating connection between the concrete telescopic formwork and the retractable formwork is avoided as much as possible, thereby protecting a series of driving structures inside the formwork. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a tunnel anchor secondary lining trolley provided in an embodiment of the present application.

[0026] Figure 2 yes Figure 1 Enlarged view of part A.

[0027] Figure 3 It is a schematic diagram of a tunnel anchor secondary lining trolley viewed from a length direction provided in an embodiment of the present application.

[0028] Explanation of the reference numerals: 1. Support table; 11. Roller; 12. Tilt table; 121. Guide rail groove; 122. Fixing rivet; 13. Support frame; 131. Support hydraulic cylinder; 132. Load-bearing main beam; 133. Top template; 14. First bonding block; 15. Second bonding block; 2. Arc template group; 21. Telescopic template; 211. Bonding block; 22. Retractable template; 221. Bonding block groove; 23. First hydraulic cylinder; 24. Second hydraulic cylinder; 25. Triangular block; 26. Sliding member; 261. First connecting rod; 262. Second connecting rod. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-3 This application is described in further detail.

[0030] The present application embodiment discloses a tunnel anchor secondary lining trolley. Figures 1 to 3 It includes a support platform 1, a roller 11 rolling on a guide rail is rotatably provided at the bottom of the support platform 1, tilting platforms 12 are rotatably provided on both sides of the support platform 1, a guide rail groove 121 for inserting the guide rail is provided on the tilting platform 12, and a fixing rivet 122 that can be nailed into the ground is slidably provided on the tilting platform 12. When constructing the railway anchor section, it is necessary to move the secondary lining trolley along the guide rail to the corresponding anchor section position and unfold the tilting platform 12, place the tilting platform 12 stably on the ground, and then knock the fixing rivet 122 to make the fixing rivet 122 nailed into the ground, so as to stabilize the tilting platform 12 and even the entire secondary lining trolley. When a construction vehicle passes through this anchor section position, it drives onto the support platform 1 from the tilting platform 12 on one side of the support platform 1, and then leaves from the tilting platform 12 on the other side of the support platform 1, so that the construction vehicle passes over the support platform 1 in this anchor section, and tries to avoid obstruction to the passage of construction vehicles in the anchor section.

[0031] Reference Figures 1 to 3A support frame 13 is fixedly arranged on the tilting platform 12. The support frame 13 is arranged in an arc shape. A supporting hydraulic cylinder 131 is fixedly arranged on the top of the support frame 13. A load-bearing main beam 132 is fixedly arranged on the piston rod of the supporting hydraulic cylinder 131. A top template 133 is fixedly arranged on the load-bearing main beam 132. A plurality of arc template groups 2 are also arranged outside the support frame 13. The arc template group 2 can form a template suitable for the tunnel with the top template 133. The supporting hydraulic cylinder 131 drives the load-bearing main beam 132 and the top template 133 to rise to the lining position, and drives the arc template group 2 and the top template 133 to combine into a template with a lining shape suitable for the tunnel. Thereby reducing the manpower and time required for laying the template, and avoiding obstacles to the passage of construction vehicles in the anchor section as much as possible.

[0032] In order to make the arc template group 2 and the top template 133 form a template that adapts to the tunnel, refer to Figure 2 and Figure 3 The arc template group 2 includes a telescopic template 21, a retractable template 22, a first hydraulic cylinder 23, and a second hydraulic cylinder 24. The first hydraulic cylinder 23 is fixedly arranged on the support frame 13, the telescopic template 21 is fixedly arranged on the piston rod of the first hydraulic cylinder 23, the second hydraulic cylinder 24 is rotatably arranged on the support frame 13, the retractable template 22 is rotatably arranged on both sides of the telescopic template 21, and the retractable template 22 is rotatably connected with the piston rod of the second hydraulic cylinder 24. A fitting block 211 is fixedly arranged on the telescopic template 21, and a fitting block groove 221 is provided on the retractable template 22. The fitting block 211 can be inserted into the fitting block groove 221 and abut against the fitting block groove 221. When it is necessary to combine the arc template group 2 and the top template 133 into a template adapted to the shape of the tunnel lining, the first hydraulic cylinder 23 is driven to extend to drive the telescopic template 21 to slide to the corresponding position. Then, the second hydraulic cylinder 24 is driven to extend to guide the stowage template 22 and to unfold it. At this time, the fitting block 211 on the telescopic template 21 is just inserted into the fitting groove 221 on the stowage template 22, which helps to improve the stability of the stowage template 22 at the angle position of the telescopic template 21. At the same time, the stowage template 22 can also provide a certain support force from both sides of the telescopic template 21. A plurality of such arc template groups 2 are adjacently combined and spliced ​​with the top template 133 to form a template adapted to the shape of the tunnel lining.

[0033] In order to prevent concrete from penetrating into the interior of the secondary lining trolley and protect the internal drive structure of the secondary lining trolley from being damaged by concrete, refer to Figures 1 to 3The arc template group 2 also includes a triangular block 25 and a sliding member 26, wherein the sliding member 26 includes a first connecting rod 261 and a second connecting rod 262. One end of the first connecting rod 261 is rotatably set on the telescopic template 21, and the other end of the first connecting rod 261 is rotatably set on the triangular block 25. One end of the second connecting rod 262 is rotatably set on the stowage template 22, and the other end of the second connecting rod 262 is rotatably set on the triangular block 25. The triangular block 25 can be attached to the side of the rotational connection between the telescopic template 21 and the stowage template 22. When the second hydraulic cylinder 24 is driven to guide the stowage template 22 to unfold, the first connecting rod 261 and the second connecting rod 262 rotate accordingly and drive the triangular block 25 to approach between the telescopic template 21 and the stowage template 22 until it is fully inserted. At this time, the telescopic template 21 and the stowage template 22 are against each other, thereby improving the strength of the rotational connection between the telescopic template 21 and the stowage template 22. At the same time, the penetration of concrete into the rotating connection between the telescopic template 21 and the stowage template 22 is avoided as much as possible.

[0034] Reference Figure 1 and Figure 2 , a first bonding block 14 is fixedly arranged on the top template 133, and a first bonding block 14 is also fixedly arranged on the side of the arc template group 2 away from the top template 133. The first bonding block 14 is integrally formed with the inner wall of the arc template group 2 or the top template 133, and a second bonding block 15 is fixedly arranged on the side of the arc template group 2 close to the top template 133. The second bonding block 15 is integrally formed with the outer wall of the arc template group 2, and the first bonding block 14 can be attached to the adjacent second bonding block 15. At the connection position between each arc template group 2 and the top template 133, the first bonding block 14 is arranged to be attached to the adjacent second bonding block 15. When pouring concrete to the outside of the top template 133 and the arc template group 2, the concrete applies pressure to each template. The increase in this pressure will cause the degree of attachment between the first bonding block 14 and the adjacent second bonding block 15 to become more compact. As the pressure increases, it becomes more difficult for concrete to penetrate from the top template 133 or the connection between the arc template groups 2. However, as the pressure exerted by the concrete on each template increases, the pressure transmitted from the second bonding block 15 to the first bonding block 14 also increases accordingly. The load-bearing main beam 132 is fixedly connected to the first bonding block 14 to lift the second bonding block 15 to share this pressure, improve the stability of the entire device, effectively prevent concrete penetration, and ensure the firmness of the connection.

[0035] The implementation principle of a tunnel anchor secondary lining trolley in an embodiment of the present application is as follows: when constructing a railway anchor section, the secondary lining trolley needs to be moved along the guide rail to the corresponding anchor section position and the tilting platform 12 needs to be unfolded, the tilting platform 12 needs to be stably placed on the ground, and the fixing rivets 122 need to be hammered to make the fixing rivets 122 be nailed into the ground, so as to stabilize the tilting platform 12 and even the entire secondary lining trolley. When a construction vehicle passes through this anchor section position, it drives onto the support platform 1 from the tilting platform 12 on one side of the support platform 1, and then leaves from the tilting platform 12 on the other side of the support platform 1, so that the construction vehicle passes over the support platform 1 in this anchor section, and tries to avoid obstructing the passage of construction vehicles in the anchor section. By driving the first hydraulic cylinder 23 to extend, the telescopic template 21 is driven to slide to the corresponding position. Then, by driving the second hydraulic cylinder 24 to extend, the retractable template 22 is guided to rotate and unfold. At this time, the fitting block 211 on the telescopic template 21 is just inserted into the fitting stop groove 221 on the retractable template 22, which helps to improve the stability of the retractable template 22 at the angle position of the telescopic template 21, and the retractable template 22 can also provide a certain support force from both sides of the telescopic template 21. A plurality of such arc template groups 2 are adjacently combined and spliced ​​with the top template 133 to form a complete arc template, thereby reducing the manpower and time required for laying the template and avoiding obstacles to the passage of construction vehicles in the anchor section as much as possible.

[0036] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A tunnel anchor secondary lining trolley, characterized in that: The invention comprises a support platform (1), wherein a roller (11) rolling on a guide rail is rotatably arranged at the bottom of the support platform (1), an inclined platform (12) is rotatably arranged on both sides of the support platform (1), a guide rail groove (121) for inserting the guide rail is provided on the inclined platform (12), a fixing rivet (122) which can be nailed into the ground is slidably arranged on the inclined platform (12), a support frame (13) is fixedly arranged on the inclined platform (12), a supporting hydraulic cylinder (131) is fixedly arranged on the top of the support frame (13), a load-bearing main beam (132) is fixedly arranged on the piston rod of the supporting hydraulic cylinder (131), a top template (133) is fixedly arranged on the load-bearing main beam (132), and a plurality of arc template groups (2) are further arranged outside the support frame (13), and the arc template groups (2) can form a template adapted to a tunnel with the top template (133).

2. A tunnel anchor secondary lining trolley according to claim 1, characterized in that: The arc-shaped template group (2) comprises a telescopic template (21), a retractable template (22), a first hydraulic cylinder (23), and a second hydraulic cylinder (24); the first hydraulic cylinder (23) is fixedly arranged on a support frame (13); the telescopic template (21) is fixedly arranged on a piston rod of the first hydraulic cylinder (23); the second hydraulic cylinder (24) is rotatably arranged on the support frame (13); the retractable template (22) is rotatably arranged on both sides of the telescopic template (21); and the retractable template (22) is rotatably connected to the piston rod of the second hydraulic cylinder (24).

3. A tunnel anchor secondary lining trolley according to claim 2, characterized in that: The telescopic template (21) is fixedly provided with a fitting stopper (211), and the retractable template (22) is provided with a fitting stopper groove (221), and the fitting stopper (211) can be inserted into the fitting stopper groove (221) and abut against the fitting stopper groove (221).

4. A tunnel anchor secondary lining trolley according to claim 3, characterized in that: The arc-shaped template group (2) further comprises a triangular block (25) and a sliding member (26). The triangular block (25) is fixedly arranged on the sliding member (26). The triangular block (25) can simultaneously fit with the side edge of the rotational connection between the telescopic template (21) and the stowable template (22). The sliding member (26) drives the triangular block (25) to approach or move away from the rotational connection between the telescopic template (21) and the stowable template (22).

5. A tunnel anchor secondary lining trolley according to claim 4, characterized in that: The sliding member (26) comprises a first connecting rod (261) and a second connecting rod (262); one end of the first connecting rod (261) is rotatably set on the telescopic template (21), and the other end of the first connecting rod (261) is rotatably set on the triangular block (25); one end of the second connecting rod (262) is rotatably set on the retractable template (22), and the other end of the second connecting rod (262) is rotatably set on the triangular block (25).

6. A tunnel anchor secondary lining trolley according to claim 2, characterized in that: The support frame (13) is arranged in an arc shape, and the straight line where the sliding direction of the telescopic template (21) is located passes through the center of the support frame (13).

7. The tunnel anchor secondary lining trolley according to claim 1, characterized in that: A first bonding block (14) is fixedly arranged on the top template (133), a first bonding block (14) is also fixedly arranged on a side of the arc template group (2) away from the top template (133), and a second bonding block (15) is fixedly arranged on a side of the arc template group (2) close to the top template (133), and the first bonding block (14) is bonded to an adjacent second bonding block (15).

8. The tunnel anchor secondary lining trolley according to claim 7, characterized in that: The first fitting block (14) is designed to be integrally formed with the inner wall of the arc-shaped template group (2) or the top template (133), and the second fitting block (15) is designed to be integrally formed with the outer wall of the arc-shaped template group (2).

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