Tunnel secondary lining steel bar positioning device

Abstract

The utility model relates to the technical field of tunnel engineering, and discloses a tunnel secondary lining steel bar positioning device which comprises an arch door, a supporting frame is fixed in the arch door and comprises vertical supporting pipes on the left side and the right side, a personnel working table is arranged on the sides, away from the axis of the arch door, of the vertical supporting pipes, and a steel bar fixing block is arranged on a rail set. A plurality of steel bar fixing grooves are formed in the sides, away from the rail sets, of the steel bar fixing blocks, steel bars can be placed in the steel bar fixing grooves, the supporting frames on the lower portions of the different arches are connected in series through connecting pipes, walking wheel sets are arranged at the bottoms of the connecting pipes, and supporting seat sets are arranged on the side walls of the supporting frames. The positioning device can be borne to move through the walking wheel set, limitation of the track is reduced, meanwhile, the supporting seat set can support the positioning device, the positioning device is made to deviate to a certain degree to adapt to the tunnel, the track set can deviate towards the outer side, reinforcing steel bars of the reinforcing steel bar fixing groove are made to be close to the wall face of the tunnel, and installation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of tunnel engineering technology, and in particular to a positioning device for the secondary lining reinforcement of a tunnel. Background Technology

[0002] "Second lining" is a term used in tunnel construction. During tunnel excavation, the tunnel faces forward, and the four sides of the excavated tunnel need to be reinforced. "Second lining" refers to the work of further reinforcing the tunnel after the initial reinforcement. The secondary lining steel reinforcement is the steel reinforcement that needs to be laid before the secondary concrete reinforcement layer is poured. A tunnel with a "secondary lining" has strong structural strength, which can ensure the safety and durability of the tunnel in the later use process, thereby ensuring the normal operation of traffic and reducing traffic accidents and delays caused by structural problems.

[0003] According to the description in the mobile and rapid positioning tunnel secondary lining reinforcement device disclosed on the patent website (authorization announcement number: CN213510652U), "the lower left and right sides of the inner support top are fixedly connected to the electric hydraulic support rod, the bottom of the inner support top is fixedly connected to the support frame, the bottom left and bottom right sides of the support frame are fixedly connected to the electric hydraulic lifting rod, the bottom of the electric hydraulic lifting rod is fixedly connected to the top of the drive device, and the bottom of the drive device is connected to the wheel through the shaft drive."

[0004] Regarding the above description, the applicant believes the following issues exist:

[0005] In the process of using this utility model, since the lower left and right sides of the inner support top are fixedly connected to the electric hydraulic support rods, and the bottom of the inner support top is fixedly connected to the support frame, the electric hydraulic support rods connected to the lower part of the inner support top in the prior art cannot move laterally. When there is a deviation between the track and the tunnel top, the position of the inner support top cannot be adjusted appropriately, resulting in poor applicability. Therefore, it is necessary to improve the tunnel secondary lining steel reinforcement positioning device to solve the above problems. Utility Model Content

[0006] In order to overcome the problem that the electro-hydraulic support rod connected to the lower part of the inner support top in the existing technology cannot move laterally, and cannot properly adjust the position of the inner support top when there is a deviation between the track and the tunnel top, resulting in poor applicability.

[0007] The technical solution of this utility model is as follows: a positioning device for tunnel secondary lining reinforcement, including an arch, a support frame fixed inside the arch, the support frame including vertical support pipes on the left and right sides, a work platform on the side of the vertical support pipe away from the axis of the arch, at least one arch, a track group that can move outward on the outside of the arch, a reinforcement fixing block on the track group, a number of reinforcement fixing grooves on the side of the reinforcement fixing block away from the track group, reinforcements can be placed in the reinforcement fixing grooves, the support frames under different arches are connected in series through connecting pipes, the axes of different arches coincide, a set of traveling wheels is provided at the bottom of the connecting pipe, the traveling wheels can drive the connected support frames to move along the axis of the arch, a support seat group is provided on the side wall of the support frame, the support seat group can raise the support frame.

[0008] As a preferred embodiment, the personnel work platform includes Personnel Platform 1, Personnel Platform 2, and Personnel Platform 3, wherein Personnel Platform 3 is above Personnel Platform 2, Personnel Platform 2 is above Personnel Platform 1, a ladder is provided between Personnel Platform 1 and Personnel Platform 2, a ladder is provided between Personnel Platform 2 and Personnel Platform 3, and guardrails are provided at the edges of Personnel Platform 1, Personnel Platform 2, and Personnel Platform 3.

[0009] Preferably, the track assembly includes track one, track two, track three, and track four. Each of the two ends of track one, track two, track three, and track four near the arch is equipped with a hydraulic jacking cylinder. The other side of the hydraulic jacking cylinder can be fixed to the arch. The axes of the two hydraulic jacking cylinders on track one are parallel, the axes of the two hydraulic jacking cylinders on track two are parallel, the axes of the two hydraulic jacking cylinders on track three are parallel, the axes of the two hydraulic jacking cylinders on track four are parallel, and the axes of the two hydraulic jacking cylinders on track five are parallel.

[0010] Preferably, there are five arches, with personnel platforms one and two extending from under the first arch to under the fifth arch.

[0011] Preferably, the support base assembly includes a support cylinder that is fixedly attached to the vertical support tube. The support cylinder includes a cylinder rod, a connecting block is provided below the cylinder rod, a slider is provided at the bottom of the connecting block, a slide rail is coupled below the slider, the slider can slide on the slide rail, the length direction of the slide rail is perpendicular to the direction of movement of the traveling wheel assembly, an upper plate is provided on one side of the slide rail, a push cylinder is provided on the side of the upper plate facing the slider, and the output rod of the push cylinder is connected to the slider.

[0012] Preferably, the walking wheel set includes a movable wheel, with guard plates on both sides of the movable wheel's axis. A drive unit is mounted on the guard plate, and the drive unit includes a motor. Clicking the motor can drive the movable wheel to rotate.

[0013] Preferably, the support frame has a vehicle passageway inside, through which a mixer truck can pass.

[0014] The beneficial effects of this utility model are as follows: The lower left and right sides of the inner support top are fixedly connected to the electric hydraulic support rod. The positioning device can be moved by the walking wheel set, reducing the restriction of the track and allowing the positioning device to move flexibly. At the same time, the support seat set can support the positioning device, allowing the positioning device to be offset to a certain extent to adapt to the tunnel. The rebar fixing groove can hold the rebar. The track set can be offset outward so that the rebar in the rebar fixing groove is close to the tunnel wall, which is convenient for installation. Workers can stand on the work platform for easy installation and operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the track assembly structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the steel bar fixing block structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the slide rail structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the vehicle passage structure of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Archway; 2. Track assembly; 20. Reinforcing bar fixing block; 201. Reinforcing bar fixing groove; 21. Track 1; 22. Track 2; 23. Track 3; 24. Track 4; 25. Track 5; 26. Hydraulic top cylinder; 3. Support base assembly; 31. Support cylinder; 311. Cylinder rod; 32. Connecting block; 33. Sliding block; 34. Slide rail; 341. Upper plate; 35. Pushing cylinder; 4. Walking wheel assembly; 41. Moving wheel; 42. Drive unit; 51. Personnel platform 1; 52. Personnel platform 2; 53. Personnel platform 3; 54. Vertical support pipe; 55. Vehicle passage; 56. Connecting pipe. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figure 1 - Figure 5This utility model provides an embodiment: a tunnel secondary lining rebar positioning device, including an archway 1, a support frame fixed inside the archway 1, the support frame including vertical support pipes 54 on the left and right sides, a work platform provided on the side of the vertical support pipes 54 away from the axis of the archway 1, the number of archways 1 is not less than one, a track group 2 that can move outward is provided on the outside of the archway 1, a rebar fixing block 20 is provided on the track group 2, a plurality of rebar fixing grooves 201 are provided on the side of the rebar fixing block 20 away from the track group 2, and rebars can be placed in the rebar fixing grooves 201, the support frames at the bottom of different archways 1 are connected in series through connecting pipes 56, the axes of different archways 1 coincide, and the connecting pipes The bottom of 56 is equipped with a set of traveling wheels 4, which can drive the connected support frame to move along the axis of the arch 1. The side wall of the support frame is equipped with a support seat set 3, which can raise the support frame. The traveling wheels 4 can carry the positioning device for movement, reducing the restriction of the track and allowing the positioning device to move flexibly. At the same time, the support seat set 3 can support the positioning device, allowing the positioning device to be offset to a certain extent to adapt to the tunnel. The rebar fixing groove 201 can place the rebar. The track set 2 can be offset outward so that the rebar in the rebar fixing groove 201 is close to the tunnel wall, which is convenient for installation. Workers can stand on the work platform for easy installation operation.

[0023] Please see Figure 1 - Figure 4In this embodiment, the personnel work platform includes personnel platform 1 51, personnel platform 2 52, and personnel platform 3 53. Personnel platform 3 53 is above personnel platform 2 52, and personnel platform 2 52 is above personnel platform 1 51. A ladder is provided between personnel platform 1 51 and personnel platform 2 52, and between personnel platform 2 52 and personnel platform 3 53. Guardrails are also provided on the edges of personnel platforms 1 51, personnel platform 2 52, and personnel platform 3 53. Personnel platforms 1 51, personnel platform 2 52, and personnel platform 3 53 facilitate the installation of steel bars at different locations. The ladders facilitate the switching of workers between different positions, and the guardrails prevent accidental falls. The track group 2 includes track 1 21, track 2 22, track 3 23, and track 4 24. Hydraulic cylinders are respectively provided at both ends of track 1 21, track 2 22, track 3 23, and track 4 24 near the arch 1. 26. The other side of the hydraulic cylinder 26 can be fixed to the arch 1. The axes of the two hydraulic cylinders 26 on track 1 21 are parallel, the axes of the two hydraulic cylinders 26 on track 2 22 are parallel, the axes of the two hydraulic cylinders 26 on track 3 23 are parallel, the axes of the two hydraulic cylinders 26 on track 4 24 are parallel, and the axes of the two hydraulic cylinders 26 on track 5 25 are parallel. The hydraulic cylinders 26 lift the track group 2, so that the steel bars in the steel bar fixing groove 201 are close to the tunnel. When the hydraulic cylinders 26 retract, it is convenient for the positioning device to move. There are five arches 1. The personnel platform 1 51 and personnel platform 2 52 can extend from the bottom of the first arch 1 to the bottom of the fifth arch 1, and extend to the bottom of the last arch 1, which is convenient for workers to move and for the installation of steel bars.

[0024] Please see Figure 2 - Figure 5In this embodiment, the support base assembly 3 includes a support cylinder 31 that is fixedly attached to the vertical support tube 54. The support cylinder 31 includes a cylinder rod 311, a connecting block 32 is provided below the cylinder rod 311, a slider 33 is provided at the bottom of the connecting block 32, and a slide rail 34 is coupled below the slider 33. The slider 33 can slide on the slide rail 34. The length direction of the slide rail 34 is perpendicular to the direction of movement of the traveling wheel assembly 4. An upper plate 341 is provided on one side of the slide rail 34 along its length direction. A push cylinder 35 is provided on the side of the upper plate 341 facing the slider 33. The output rod of the push cylinder 35 is connected to the slider 33. Through the cooperation of the slider 33 and the slide rail 34, the actual... The positioning device is offset within the tunnel. The hydraulic cylinder rod 311 can separate the traveling wheel set 4 from the ground, reducing the resistance generated when the positioning device is offset. The traveling wheel set 4 includes a moving wheel 41. There are guard plates on both sides of the axis of the moving wheel 41. A drive unit 42 is installed on the guard plate. The drive unit 42 includes a motor. The motor can drive the moving wheel 41 to rotate. The moving wheel 41 is driven to move through the drive unit 42, so that the positioning device has the power to move. The support frame has a vehicle passage 55. The vehicle passage 55 can pass through the mixer truck. The vehicle passage 55 facilitates the passage of the mixer truck, facilitates the tunnel construction, and speeds up the efficiency of the project implementation.

[0025] During operation, the moving wheel 41 of the walking wheel set 4 is driven by the drive unit 42, causing the walking wheel set 4 to carry the positioning device and move within the tunnel. When the walking wheel set 4 carrying the positioning device moves to the appropriate position, the moving wheel 41 brakes and stops. Then, the cylinder rod 311 of the support cylinder 31 moves downward, pressing the slide rail 34 against the ground. Subsequently, the cylinder 35 is pushed to drive the slider 33 to move on the slide rail 34, offsetting the positioning device within the tunnel. When the position is confirmed to be appropriate, the hydraulic top cylinder 26 lifts the track set 2, bringing the steel bars in the steel bar fixing groove 201 closer to the tunnel wall. The personnel platform 3 53 is also equipped with a connected top personnel platform. Then, workers climb onto personnel platform 1 51, personnel platform 2 52, personnel platform 3 53, and the top personnel platform to install the steel bars.

[0026] Through the above steps, the walking wheel set 4 can carry the positioning device for movement, reducing the restrictions of the track and allowing the positioning device to move flexibly. At the same time, the support seat set 3 can support the positioning device, allowing the positioning device to shift to a certain extent to adapt to the tunnel. The rebar fixing groove 201 can place the rebar, and the track set 2 can shift outward so that the rebar in the rebar fixing groove 201 is close to the tunnel wall, which is convenient for installation. Workers can stand on the work platform for easy installation and operation. This solves the problem in the existing technology that the electric hydraulic support rod connected to the lower part of the inner support top cannot move laterally, and cannot properly adjust the position of the inner support top when there is a deviation between the track and the tunnel top, resulting in poor applicability.

Claims

1. A positioning device for tunnel secondary lining reinforcement, characterized in that: The system includes an arch (1), with a support frame fixed inside the arch (1). The support frame includes vertical support pipes (54) on the left and right sides. A work platform is provided on the side of the vertical support pipe (54) away from the axis of the arch (1). There is at least one arch (1). A track group (2) that can move outward is provided on the outside of the arch (1). A steel bar fixing block (20) is provided on the track group (2). Several steel bar fixing grooves (201) are provided on the side of the steel bar fixing block (20) away from the track group (2). Steel bars can be placed in the steel bar fixing grooves (201). The support frames at the bottom of different arches (1) are connected in series through connecting pipes (56). The axes of different arches (1) coincide. A set of walking wheels (4) is provided at the bottom of the connecting pipe (56). The set of walking wheels (4) can drive the connected support frames to move along the axis of the arch (1). A set of support seats (3) is provided on the side wall of the support frame. The set of support seats (3) can raise the support frame.

2. The tunnel secondary lining reinforcement positioning device according to claim 1, characterized in that: The personnel work platform includes personnel platform one (51), personnel platform two (52), and personnel platform three (53). Personnel platform three (53) is above personnel platform two (52), and personnel platform two (52) is above personnel platform one (51). There is a ladder between personnel platform one (51) and personnel platform two (52), and a ladder between personnel platform two (52) and personnel platform three (53). Guardrails are also provided on the edges of personnel platform one (51), personnel platform two (52), and personnel platform three (53).

3. The tunnel secondary lining reinforcement positioning device according to claim 1, characterized in that: The track group (2) includes track one (21), track two (22), track three (23), and track four (24). Each of track one (21), track two (22), track three (23), and track four (24) has a hydraulic cylinder (26) at both ends on the side near the arch (1). The other side of the hydraulic cylinder (26) can be fixed to the arch (1). The axes of the two hydraulic cylinders (26) on track one (21) are parallel, the axes of the two hydraulic cylinders (26) on track two (22) are parallel, the axes of the two hydraulic cylinders (26) on track three (23) are parallel, the axes of the two hydraulic cylinders (26) on track four (24) are parallel, and the axes of the two hydraulic cylinders (26) on track five (25) are parallel.

4. A tunnel secondary lining reinforcement positioning device according to claim 2, characterized in that: There are five arches (1), among which personnel platform one (51) and personnel platform two (52) can extend from below the first arch (1) to below the fifth arch (1).

5. A tunnel secondary lining reinforcement positioning device according to claim 1, characterized in that: The support base assembly (3) includes a support cylinder (31) that is fixedly attached to the vertical support tube (54). The support cylinder (31) includes a cylinder rod (311). A connecting block (32) is provided below the cylinder rod (311). A slider (33) is provided at the bottom of the connecting block (32). A slide rail (34) is coupled below the slider (33). The slider (33) can slide on the slide rail (34). The length direction of the slide rail (34) is perpendicular to the direction of movement of the walking wheel assembly (4). An upper plate (341) is provided on one side of the length direction of the slide rail (34). A push cylinder (35) is provided on the side of the upper plate (341) facing the slider (33). The output rod of the push cylinder (35) is connected to the slider (33).

6. A tunnel secondary lining reinforcement positioning device according to claim 4, characterized in that: The walking wheel set (4) includes a moving wheel (41), and guard plates are provided on both sides of the axis of the moving wheel (41). A drive unit (42) is installed on the guard plate. The drive unit (42) includes a motor. Clicking the motor can drive the moving wheel (41) to rotate.

7. A tunnel secondary lining reinforcement positioning device according to claim 6, characterized in that: The support frame has a vehicle passage (55) inside, through which a mixer truck can pass.

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