Construction rack suitable for tunnel engineering

Abstract

The utility model relates to the technical field of tunnel engineering, in particular to a construction rack suitable for tunnel engineering, which comprises a rack body, the upper end face of a support plate is slidably connected with a reinforcing steel bar placing table, and the upper end face of the reinforcing steel bar placing table is provided with a plurality of limiting grooves matched with reinforcing steel bars. The left inner wall and the right inner wall of the limiting groove are rotationally connected with a plurality of evenly-distributed clamping strips through hinged supports. When the reinforcing steel bar is clamped, the reinforcing steel bar is put into the limiting groove, the reinforcing steel bar is located among the multiple clamping strips, meanwhile, the reinforcing steel bar downwards presses the lower ends of the multiple clamping strips, the multiple clamping strips rotate, then the upper ends of the multiple clamping strips get close to one another, the reinforcing steel bar is clamped through the upper ends of the multiple clamping strips, and the larger the downward gravity of the reinforcing steel bar is, the larger the gravity is. The larger the clamping force of the multiple clamping strips on the reinforcing steel bar is, the larger the clamping force of the multiple clamping strips on the reinforcing steel bar is, then the reinforcing steel bar is stably clamped in the limiting groove, then the first telescopic cylinder stretches, the first telescopic cylinder is matched with the supporting plate and the reinforcing steel bar containing table to move the reinforcing steel bar upwards, the reinforcing steel bar is moved to the position needing to be bound, and the reinforcing steel bar is bound.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel engineering, in particular to a construction stand suitable for tunnel engineering. Background Art

[0002] When excavating a tunnel using various methods such as the full-section method, the step method, and the core soil excavation method, the inside of the tunnel needs to be supported in order to ensure the stability of the tunnel. During this process, relevant construction workers often use gantry equipment to tie steel bars to the inner wall of the tunnel.

[0003] When the existing tunnel construction uses a stand to assist in tying the steel bars, multiple workers stand on the stand to support the steel bars to prevent them from being displaced, and then other workers tie the steel bars at their binding locations, which results in high labor intensity, and the tying process of the steel bars is cumbersome and inconvenient to use.

[0004] When the existing tunnel construction gantry is moved, it is mostly assisted by an engineering vehicle. Due to the complex ground conditions inside the tunnel, the moving process is slow and it is inconvenient to move the gantry. Utility Model Content

[0005] The utility model aims to provide a construction platform suitable for tunnel engineering, which has the characteristics of being convenient for tying steel bars and moving the platform.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a construction platform suitable for tunnel engineering, comprising a platform body, the upper end surface of the platform body is fixedly connected to two first telescopic cylinders distributed on the left and right, the other ends of the two first telescopic cylinders are commonly fixedly connected to a support plate, the upper end surface of the support plate is slidably connected to a steel bar placement platform, the upper end surface of the steel bar placement platform is provided with a plurality of limit grooves matching the steel bars, the left and right inner walls of the limit grooves are rotatably connected to a plurality of evenly distributed clamping strips through hinge seats, every two clamping strips distributed on the left and right form a group, and the lower ends of the clamping strips are arranged in an arc structure;

[0007] A moving mechanism is arranged below the platform body.

[0008] In order to move the gantry body, as a preferred construction gantry suitable for tunnel engineering of the utility model, the moving mechanism includes a second telescopic cylinder fixedly connected to the lower end surface of the gantry body support leg, two support rods distributed front and back are fixedly connected between the multiple support legs of the gantry body, a moving block is slidably connected to the outer wall of the support rod, and two third telescopic cylinders distributed left and right are fixedly connected to the lower end surface of the moving block.

[0009] In order to facilitate the binding of steel bars at different positions, as a preferred construction stand suitable for tunnel engineering of the utility model, the upper end face of the support plate is provided with a slide groove, the interior of the slide groove is rotatably connected to a screw rod, and the lower end face of the steel bar placement platform is fixedly connected to a slider matching the slide groove and threadedly connected to the screw rod.

[0010] In order to move the moving block, as a preferred construction stand suitable for tunnel engineering of the utility model, grooves are provided at the upper and lower ends of the interior of the moving block, rollers are rotatably connected inside the grooves, and two first motors distributed up and down are installed on one side wall of the moving block, and the output ends of the two first motors are fixedly connected to the two rollers respectively.

[0011] In order to provide power for the rotation of the screw rod, as a preferred embodiment of the utility model for a construction stand suitable for tunnel engineering, a second motor is installed on the left side wall of the support plate, and the output end of the second motor is fixedly connected to the screw rod.

[0012] In order to avoid mutual influence between the multiple clamping bars when they rotate, as a preferred embodiment of the utility model for a construction stand suitable for tunnel engineering, the two clamping bars in each group are staggered.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The steel bar is first moved to the steel bar placement platform so that the steel bar enters the limiting groove. After the steel bar enters the limiting groove, the steel bar is located between the multiple clamping bars. At the same time, the steel bar presses the lower ends of the multiple clamping bars downward to rotate the multiple clamping bars, thereby making the upper ends of the multiple clamping bars close to each other, and the steel bar is clamped by the upper ends of the multiple clamping bars. The greater the downward gravity of the steel bar, the greater the clamping force of the multiple clamping bars on the steel bar, thereby stably clamping the steel bar in the limiting groove. Then the first telescopic cylinder is extended, and the first telescopic cylinder cooperates with the support plate and the steel bar placement platform to move the steel bar upward so that the steel bar is moved to the required binding position. After the steel bar is tied, the steel bar placement platform moves downward, and the tied steel bar does not move. The tied steel bar squeezes the upper ends of the multiple clamping bars outward, so that the multiple clamping bars rotate in the opposite direction to reset, and the clamping state of the multiple clamping bars on the steel bar is released, and then the steel bar is taken out of the limiting groove, thereby facilitating the binding of the steel bar.

[0015] When the platform body is moved, the third telescopic cylinder contracts, so that the lower end of the third telescopic cylinder leaves the ground, and then the moving block drives the third telescopic cylinder to move to one side of the platform body, and then the third telescopic cylinder extends to lift the platform body, and then the platform body moves through the moving block, so that the platform body moves a certain distance, and then the second telescopic cylinder extends, so that the lower end of the second telescopic cylinder is flush with the lower end of the third telescopic cylinder, the third telescopic cylinder contracts again, and then the above operation is repeated to move the platform body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a front cross-sectional structural schematic diagram of the utility model;

[0018] Figure 3 It is a right side cross-sectional structural schematic diagram of the utility model;

[0019] Figure 4 For this utility model Figure 2 The enlarged structural diagram of part a in the middle;

[0020] Figure 5 For this utility model Figure 3 The enlarged structural diagram of part b in the middle;

[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of the steel bar placement platform of the utility model;

[0022] In the figure: 1. stand body; 2. first telescopic cylinder; 3. support plate; 4. steel bar placement table; 5. limit groove; 6. clamping bar; 7. second telescopic cylinder; 8. support rod; 9. moving block; 10. third telescopic cylinder; 11. slide groove; 12. screw rod; 13. slider; 14. groove; 15. roller; 16. first motor; 17. second motor. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, in the description of the utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0024] See also Figures 1 to 6 A construction platform suitable for tunnel engineering, comprising a platform body 1, the upper end surface of the platform body 1 is fixedly connected to two first telescopic cylinders 2 distributed on the left and right, the other ends of the two first telescopic cylinders 2 are commonly fixedly connected to a support plate 3, the upper end surface of the support plate 3 is slidably connected to a steel bar placement platform 4, the upper end surface of the steel bar placement platform 4 is provided with a plurality of limiting grooves 5 matching the steel bars, the left and right inner walls of the limiting grooves 5 are rotatably connected to a plurality of uniformly distributed clamping strips 6 through a hinge seat, every two clamping strips 6 distributed on the left and right form a group, and the lower end of the clamping strip 6 is set to an arc structure;

[0025] A moving mechanism is provided below the stand body 1 .

[0026] In this embodiment: when in use, first move the steel bar to the steel bar placement platform 4, so that the steel bar enters the limiting groove 5, after the steel bar enters the limiting groove 5, the steel bar is located between the multiple clamping bars 6, and at the same time, the steel bar presses the lower ends of the multiple clamping bars 6 downward, so that the multiple clamping bars 6 rotate, and then the upper ends of the multiple clamping bars 6 are close to each other, and the steel bar is clamped by the upper ends of the multiple clamping bars 6. The greater the downward gravity of the steel bar, the greater the clamping force of the multiple clamping bars 6 on the steel bar, and then the steel bar is stably clamped in the limiting groove 5;

[0027] Then the first telescopic cylinder 2 is extended, and the first telescopic cylinder 2 cooperates with the support plate 3 and the steel bar placement platform 4 to move the steel bar upward, so that the steel bar is moved to the required binding position. After the steel bar is bound, the steel bar placement platform 4 moves downward, and the bound steel bar does not move. The bound steel bar pushes the upper ends of the plurality of clamping bars 6 outward, so that the plurality of clamping bars 6 rotate in the opposite direction and reset, releasing the clamping state of the plurality of clamping bars 6 on the steel bar, and then taking the steel bar out of the limiting groove 5, so as to facilitate the binding of the steel bar;

[0028] After the steel bars of an area are tied, the frame body 1 is moved by the moving mechanism.

[0029] As a technical optimization solution of the utility model, the moving mechanism includes a second telescopic cylinder 7 fixedly connected to the lower end surface of the supporting leg of the platform body 1, two support rods 8 distributed front and back are fixedly connected between the multiple supporting legs of the platform body 1, and a moving block 9 is slidably connected to the outer wall of the support rod 8. The lower end surface of the moving block 9 is fixedly connected to two third telescopic cylinders 10 distributed left and right.

[0030] In this embodiment: when the platform body 1 is moved, the third telescopic cylinder 10 contracts, so that the lower end of the third telescopic cylinder 10 leaves the ground, and then the moving block 9 drives the third telescopic cylinder 10 to move to one side of the platform body 1, and then the third telescopic cylinder 10 extends to lift the platform body 1, and then the platform body 1 moves through the moving block 9, so that the platform body 1 moves a distance, and then the second telescopic cylinder 7 extends, so that the lower end of the second telescopic cylinder 7 is flush with the lower end of the third telescopic cylinder 10, the third telescopic cylinder 10 contracts again, and then the above operation is repeated to move the platform body 1.

[0031] As a technical optimization solution of the utility model, a slide groove 11 is opened on the upper end surface of the support plate 3, and a screw rod 12 is rotatably connected inside the slide groove 11. The lower end surface of the steel bar placement platform 4 is fixedly connected with a slider 13 that matches the slide groove 11 and is threadedly connected to the screw rod 12.

[0032] In this embodiment: the screw rod 12 rotates, and the screw rod 12 cooperates with the slider 13 to drive the steel bar placement platform 4 to move, and then the position of the steel bar placement platform 4 is adjusted, so as to facilitate the binding of steel bars at different positions.

[0033] As a technical optimization solution of the utility model, grooves 14 are provided at the upper and lower ends of the interior of the moving block 9, and a roller 15 is rotatably connected inside the groove 14. Two first motors 16 distributed up and down are installed on one side wall of the moving block 9, and the output ends of the two first motors 16 are fixedly connected to the two rollers 15 respectively.

[0034] In this embodiment: the first motor 16 is started, the roller 15 driven by the first motor 16 rotates, and the moving block 9 is moved through the cooperation between the roller 15 and the support rod 8 .

[0035] As a technical optimization solution of the present invention, a second motor 17 is installed on the left side wall of the support plate 3 , and the output end of the second motor 17 is fixedly connected to the screw rod 12 .

[0036] In this embodiment, the second motor 17 is started, and the second motor 17 drives the screw rod 12 to rotate, thereby providing power for the rotation of the screw rod 12 .

[0037] As a technical optimization solution of the utility model, the two clamping strips 6 in each group are staggered.

[0038] In this embodiment, the two clamping bars 6 in each group are staggered, so as to avoid mutual influence between the clamping bars 6 when the clamping bars 6 rotate.

[0039] Working principle: when in use, first move the steel bar to the steel bar placement table 4, so that the steel bar enters the limiting groove 5. After the steel bar enters the limiting groove 5, the steel bar is located between the multiple clamping bars 6. At the same time, the steel bar presses down the lower ends of the multiple clamping bars 6, so that the multiple clamping bars 6 rotate, and then the upper ends of the multiple clamping bars 6 are close to each other, and the steel bar is clamped by the upper ends of the multiple clamping bars 6. The greater the downward gravity of the steel bar, the greater the clamping force of the multiple clamping bars 6 on the steel bar, and then the steel bar is stably clamped in the limiting groove 5.

[0040] Then the first telescopic cylinder 2 is extended, and the first telescopic cylinder 2 cooperates with the support plate 3 and the steel bar placement platform 4 to move the steel bar upward, so that the steel bar is moved to the required binding position. After the steel bar is bound, the steel bar placement platform 4 moves downward, and the bound steel bar does not move. The bound steel bar pushes the upper ends of the plurality of clamping bars 6 outward, so that the plurality of clamping bars 6 rotate in the opposite direction and reset, releasing the clamping state of the plurality of clamping bars 6 on the steel bar, and then taking the steel bar out of the limiting groove 5, so as to facilitate the binding of the steel bar;

[0041] Then start the second motor 17, the second motor 17 drives the screw rod 12 to rotate, the screw rod 12 cooperates with the slider 13 to drive the steel bar placement platform 4 to move, and then adjust the position of the steel bar placement platform 4, so as to facilitate the binding of steel bars at different positions;

[0042] When the platform body 1 is moved, the third telescopic cylinder 10 contracts, so that the lower end of the third telescopic cylinder 10 leaves the ground, and then the first motor 16 is started, and the roller 15 driven by the first motor 16 rotates, and the roller 15 and the support rod 8 cooperate with each other, so as to move the moving block 9, and the moving block 9 drives the third telescopic cylinder 10 to move to one side of the platform body 1, and then the third telescopic cylinder 10 extends to lift the platform body 1, and then the platform body 1 moves through the moving block 9, so that the platform body 1 moves a distance, and then the second telescopic cylinder 7 extends, so that the lower end of the second telescopic cylinder 7 is flush with the lower end of the third telescopic cylinder 10, and the third telescopic cylinder 10 contracts and contracts again, and then the above operation is repeated to move the platform body 1.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A construction stand suitable for use in tunnel engineering, comprising a stand body (1), characterized in that: The upper end surface of the platform body (1) is fixedly connected to two first telescopic cylinders (2) distributed on the left and right, the other ends of the two first telescopic cylinders (2) are commonly fixedly connected to a support plate (3), the upper end surface of the support plate (3) is slidably connected to a steel bar placement platform (4), and the upper end surface of the steel bar placement platform (4) is provided with a plurality of limit grooves (5) matching the steel bars; The left and right inner walls of the limiting groove (5) are rotatably connected to a plurality of evenly distributed clamping strips (6) via a hinge seat, and each two clamping strips (6) distributed on the left and right form a group, and the lower ends of the clamping strips (6) are arranged as an arc-shaped structure; A moving mechanism is provided below the platform body (1).

2. A construction stand suitable for tunnel engineering according to claim 1, characterized in that: The moving mechanism comprises a second telescopic cylinder (7) fixedly connected to the lower end surface of the support leg of the platform body (1); two support rods (8) distributed front and rear are fixedly connected between the multiple support legs of the platform body (1); a moving block (9) is slidably connected to the outer wall of the support rod (8); and two third telescopic cylinders (10) distributed left and right are fixedly connected to the lower end surface of the moving block (9).

3. The construction stand for tunnel engineering according to claim 1, characterized in that: The upper end surface of the support plate (3) is provided with a slide groove (11), the interior of the slide groove (11) is rotatably connected to a screw rod (12), and the lower end surface of the steel bar placement platform (4) is fixedly connected to a slider (13) that matches the slide groove (11) and is threadedly connected to the screw rod (12).

4. The construction stand for tunnel engineering according to claim 2, characterized in that: The upper and lower ends of the movable block (9) are provided with grooves (14), the interior of the groove (14) is rotatably connected to a roller (15), and a side wall of the movable block (9) is provided with two first motors (16) distributed vertically, and the output ends of the two first motors (16) are respectively fixedly connected to the two rollers (15).

5. The construction stand for tunnel engineering according to claim 3, characterized in that: A second motor (17) is mounted on the left side wall of the support plate (3), and an output end of the second motor (17) is fixedly connected to the screw rod (12).

6. The construction stand for tunnel engineering according to claim 1, characterized in that: The two clamping bars (6) of each group are arranged in a staggered manner.

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