High-safety tunnel support for civil engineering

Abstract

The utility model relates to the technical field of tunnel construction, and discloses a civil engineering high-safety tunnel support which comprises a bottom plate, and supporting legs are arranged at the front ends and the rear ends of the left side and the right side of the bottom of the bottom plate. According to the high-safety tunnel support for civil engineering, the tunnel support equipment is moved into a tunnel, four hydraulic cylinders are started immediately to drive four walking wheels to move upwards, so that the whole equipment is supported by four supporting legs, then four hydraulic jacks are started to drive a top plate to move upwards, and the whole equipment is supported by the four supporting legs; the two side plates can be driven to move oppositely by starting a servo motor until the top of the top plate is tightly attached to the inner top wall of the tunnel so as to support the top of the tunnel, and then the two side plates can be driven to move oppositely by starting a servo motor until the opposite sides of the two side plates are tightly attached to the left side and the right side of the inner wall of the tunnel so as to support the side walls of the tunnel. Therefore, the tunnel support is installed, and the purpose of convenient installation is finally achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a tunnel support with high safety for civil engineering. Background Art

[0002] Tunnels are engineering buildings buried in the ground. They are a form of human use of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, mining tunnels, and military tunnels. The structure of a tunnel consists of two parts: the main building and ancillary equipment. The main building consists of a tunnel body and a tunnel door. The ancillary equipment includes a car shelter, fire-fighting facilities, emergency communications, and drainage facilities. Long tunnels also have special ventilation and lighting equipment. According to the geological conditions of the tunnel, generally earth tunnels and stone tunnels, in order to ensure the smooth and safe excavation process, support brackets are usually used to support the tunnel walls that have been excavated to avoid tunnel holes. The wall collapse accident occurs, but in the prior art, steel arch frames or steel grating arch frames are generally used to support the tunnel. After the steel arch frames or steel grating arch frames are processed, they need to be installed manually to fix them on the tunnel wall. Since such installation method is very time-consuming, and the structure inside the tunnel is very unstable in the early stage of tunnel excavation, it is very easy to cause collapse if assembled one by one for a long time. Furthermore, when installing on the tunnel top, the terrain is relatively high, which further increases the installation risk. Therefore, a tunnel support with high safety for civil engineering is proposed. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a tunnel support with high safety for civil engineering, which has the advantages of easy installation, etc., and solves the problem that in the prior art, steel arch frames or steel grating arch frames are generally used to support tunnels. After the steel arch frames or steel grating arch frames are processed, they need to be installed manually to fix them on the tunnel wall. Since such installation method is very time-consuming and the structure inside the tunnel is very unstable in the early stage of tunnel excavation, it is very easy to cause collapse if assembled one by one for a long time. Furthermore, when installing on the tunnel top, the terrain is relatively high, which further increases the problem of certain installation risks.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose of easy installation, the utility model provides the following technical solutions: a tunnel support with high safety for civil engineering, comprising a base plate, support feet are provided at the front and rear ends on the left and right sides of the bottom of the base plate, mounting plates are provided at the left and right sides of the top of the base plate, a shell with one end fixedly connected to the top of the right mounting plate is provided on the top of the left mounting plate, a moving component with one end fixedly connected to the bottom of the shell and the other end extending to the bottom of the base plate is provided between the two mounting plates, threaded rods with one end movably connected to the right side of the inner wall are provided at the upper and lower ends of the left side of the inner wall of the shell, threaded sleeves are provided at the left and right ends of the outer sides of the two threaded rods, and two traction blocks symmetrically distributed on the left and right are provided inside the shell, the traction block on the left side is fixedly connected to the outer sides of the two threaded sleeves on the left side, and the traction block on the right side is connected to the outer sides of the two threaded sleeves on the right side. The two traction blocks are provided with mounting blocks located between the upper and lower threaded sleeves and one end of which extends to the left and right sides of the shell respectively on the opposite sides of the two mounting blocks; the two mounting blocks are provided with side plates on the opposite sides; the bottoms of the opposite sides of the two side plates are provided with support blocks with one end fixedly connected to the bottoms of the two mounting blocks respectively; the inner top wall of the shell is provided with a driving assembly with one end fixedly connected to the outsides of the two threaded rods and the other end extending to the bottom of the shell; mounting frames are provided on the left and right sides of the top of the shell; the two mounting frames are provided with moving blocks with one end extending to the top thereof; the top of the moving block on the left is provided with a top plate with one end fixedly connected to the top of the moving block on the right; the front and rear ends on the left and right sides of the top of the shell are provided with hydraulic jacks located between the two mounting frames, and the output ends of the four hydraulic jacks are fixedly connected to the bottom of the top plate.

[0007] Preferably, the moving assembly includes a moving plate, which is movably installed between the two mounting plates, and columns with one end extending to the bottom of the base plate are fixedly installed at both front and rear ends on the left and right sides of the bottom of the moving plate, and walking wheels are fixedly installed at the bottoms of the four columns, and hydraulic cylinders located between the two mounting plates are fixedly installed at both front and rear ends on the left and right sides of the bottom of the shell, and the output ends of the four hydraulic cylinders are fixedly connected to the top of the moving plate.

[0008] Preferably, the drive assembly includes a servo motor, and the bottom of the shell is fixedly installed with a servo motor located between two mounting plates. The output shaft of the servo motor extends to the interior of the shell and is fixedly installed with a worm located on the rear side of the two threaded rods and one end of which is movably connected to the inner top wall of the shell. The outer sides of the two threaded rods are fixedly installed with worm wheels located between the left and right threaded sleeves and one end of which is meshed with the worm.

[0009] Preferably, through holes matching with the columns are provided at the front and rear ends of the left and right sides of the top of the bottom plate, and the columns on the left and right sides are located on the opposite sides of the left and right supporting feet.

[0010] Preferably, first bearings are fixedly installed at both upper and lower ends of the left and right sides of the inner wall of the shell, and the threaded rod is rotatably connected to the inner wall of the shell through the first bearing. The outer sides of the two threaded rods are each provided with two sections of threads, and the two sections of threads are equal in length and opposite in direction.

[0011] Preferably, a second bearing located between the two traction blocks is fixedly mounted on the inner top wall of the housing, and the worm is rotatably connected to the inner top wall of the housing via the second bearing.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a tunnel support with high safety for civil engineering, which has the following beneficial effects:

[0014] The high-safety tunnel support for civil engineering moves the tunnel support device to the inside of the tunnel, and then starts four hydraulic cylinders to drive the moving plate, four columns and four walking wheels to move upward as a whole until the bottoms of the four walking wheels are in a suspended state. At this time, the entire device is supported by four supporting feet, and then the top plate can be driven to move upward by starting four hydraulic jacks until the top of the top plate is tightly fitted with the inner top wall of the tunnel, so as to support the tunnel top, and then the servo motor can be started to drive the worm to rotate, and then the two threaded rods can be driven to rotate synchronously through the two worm gears, and the two threaded rods will drive the two traction blocks to move back to back through the threaded sleeves on the left and right sides during the rotation process, and then drive the two mounting blocks and the two side plates to move back to back until the opposite sides of the two side plates are tightly fitted with the left and right sides of the inner wall of the tunnel respectively, so as to support the tunnel side walls, that is, complete the installation of the tunnel support, without manual assembly, thereby achieving the purpose of easy installation, thereby simplifying the installation process, improving the installation efficiency, reducing the installation risk, and facilitating the use of users. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 It is a structural schematic diagram of the utility model in a supporting state.

[0018] In the figure: 1 bottom plate, 2 supporting feet, 3 mounting plate, 4 housing, 5 moving assembly, 51 moving plate, 52 column, 53 walking wheel, 54 hydraulic cylinder, 6 threaded rod, 7 threaded sleeve, 8 traction block, 9 mounting block, 10 side plate, 11 supporting block, 12 driving assembly, 121 servo motor, 122 worm, 123 worm gear, 13 mounting frame, 14 moving block, 15 top plate, 16 hydraulic jack. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 The utility model provides a technical solution: a tunnel support with high safety for civil engineering, comprising a bottom plate 1, support feet 2 are fixedly installed on the front and rear ends of the left and right sides of the bottom of the bottom plate 1, mounting plates 3 are fixedly installed on the left and right sides of the top of the bottom plate 1, and a shell 4 with one end fixedly connected to the top of the right mounting plate 3 is fixedly installed on the top of the left mounting plate 3.

[0021] A moving component 5 is movably installed between the two mounting plates 3, and has one end fixedly connected to the bottom of the shell 4 and the other end extending to the bottom of the base plate 1. The moving component 5 includes a moving plate 51, and a moving plate 51 is movably installed between the two mounting plates 3. The front and rear ends on the left and right sides of the bottom of the moving plate 51 are fixedly installed with columns 52 with one end extending to the bottom of the base plate 1. The front and rear ends on the left and right sides of the top of the base plate 1 are provided with through holes compatible with the columns 52. The left and right columns 52 are located on opposite sides of the left and right supporting feet 2. Walking wheels 53 are fixedly installed on the bottoms of the four columns 52. Hydraulic cylinders 54 located between the two mounting plates 3 are fixedly installed at the front and rear ends on the left and right sides of the bottom of the shell 4. The model of the hydraulic cylinder 54 may be QF200T-20, and the output ends of the four hydraulic cylinders 54 are fixedly connected to the top of the moving plate 51.

[0022] A threaded rod 6 with one end movably connected to the right side of the inner wall of the shell 4 is movably installed at both upper and lower ends of the left side of the inner wall of the shell 4, and a first bearing is fixedly installed at both upper and lower ends on the left and right sides of the inner wall of the shell 4. The threaded rod 6 is rotatably connected to the inner wall of the shell 4 through the first bearing. The outer sides of the two threaded rods 6 are provided with two sections of threads, and the two sections of threads are equal in length and opposite in direction. The left and right ends of the outer sides of the two threaded rods 6 are threadedly connected with threaded sleeves 7. Two traction blocks 8 symmetrically distributed on the left and right are movably installed inside the shell 4. The left traction block 8 is fixedly connected to the outer sides of the two threaded sleeves 7 on the left and the right traction block 8 is fixedly connected to the outer sides of the two threaded sleeves 7 on the right. The opposite sides of the two traction blocks 8 are fixedly installed with mounting blocks 9 located between the upper and lower threaded sleeves 7 and one end of which extends to the left and right sides of the shell 4 respectively. The inner wall of the shell 4 is provided with mounting holes adapted to the mounting blocks 9 on the left and right sides. Side plates 10 are fixedly installed on the opposite sides of the two mounting blocks 9, and support blocks 11 with one end fixedly connected to the bottom of the two mounting blocks 9 are fixedly installed on the opposite sides of the two side plates 10.

[0023] A driving assembly 12 is movably mounted on the inner top wall of the shell 4, one end of which is fixedly connected to the outer sides of the two threaded rods 6 and the other end of which extends to the bottom of the shell 4. The driving assembly 12 includes a servo motor 121. The bottom of the shell 4 is fixedly mounted with a servo motor 121 located between the two mounting plates 3. The model of the servo motor 121 may be MR-J2S-10A. The output shaft of the servo motor 121 extends to the interior of the shell 4 and is fixedly mounted with a worm 122 located at the rear side of the two threaded rods 6 and one end of which is movably connected to the inner top wall of the shell 4. A second bearing located between the two traction blocks 8 is fixedly mounted on the inner top wall of the shell 4. The worm 122 is rotatably connected to the inner top wall of the shell 4 via the second bearing. A worm wheel 123 located between the left and right threaded sleeves 7 and one end of which is meshed with the worm 122 is fixedly mounted on the outer sides of the two threaded rods 6.

[0024] Mounting frames 13 are fixedly installed on both left and right sides of the top of the shell 4, and moving blocks 14 with one end extending to the top thereof are movably installed inside the two mounting frames 13. A top plate 15 with one end fixedly connected to the top of the right moving block 14 is fixedly installed on the top of the left moving block 14. Hydraulic jacks 16 located between the two mounting frames 13 are fixedly installed on the front and rear ends of the left and right sides of the top of the shell 4. The model of the hydraulic jacks 16 may be QF630T-200, and the output ends of the four hydraulic jacks 16 are fixedly connected to the bottom of the top plate 15.

[0025] When in use, the tunnel support device is moved to the inside of the tunnel and placed in the center of the tunnel. Then, the four hydraulic cylinders 54 are started by an external controller to drive the moving plate 51, the four columns 52 and the four running wheels 53 to move upward as a whole until the bottoms of the four running wheels 53 are all in a suspended state. At this time, the entire device is supported by four supporting feet 2. Then, the top plate 15 can be driven to move upward by starting four hydraulic jacks 16 until the top of the top plate 15 is tightly fitted with the inner top wall of the tunnel, so as to support the tunnel top. Then, the servo motor 121 can be started to drive The worm 122 rotates, and then drives the two threaded rods 6 to rotate synchronously through the two worm wheels 123. During the rotation process, the two threaded rods 6 will drive the two traction blocks 8 to move away from each other through the threaded sleeves 7 on the left and right sides, and then drive the two mounting blocks 9 and the two side plates 10 to move away from each other, until the opposite sides of the two side plates 10 are tightly fitted with the left and right sides of the inner wall of the tunnel respectively, so as to support the side walls of the tunnel, that is, complete the installation of the tunnel bracket, so that there is no need for manual assembly of the bracket, thereby simplifying the installation process, improving the installation efficiency, reducing the installation risk, and facilitating the use of users.

[0026] In summary, the tunnel support with high safety for civil engineering is moved to the inside of the tunnel, and then the four hydraulic cylinders 54 are started to drive the moving plate 51, the four columns 52 and the four walking wheels 53 to move upward as a whole, until the bottoms of the four walking wheels 53 are all in a suspended state. At this time, the whole equipment is supported by the four supporting feet 2, and then the top plate 15 can be driven to move upward by starting the four hydraulic jacks 16 until the top of the top plate 15 is tightly fitted with the inner top wall of the tunnel, so as to support the tunnel top, and then the servo motor 121 can be started to drive the worm 122 to rotate, and then the two threaded rods 6 can be driven to rotate synchronously through the two worm gears 123, and the two threaded rods 6 will drive the two traction blocks 8 to move in opposite directions through the threaded sleeves 7 on the left and right sides during the rotation, and then drive the two mounting blocks 9 and the two side plates 10 to move in opposite directions. Until the opposite sides of the two side panels 10 are tightly fitted with the left and right sides of the inner wall of the tunnel respectively, the tunnel side wall is supported, that is, the installation of the tunnel support is completed, and no manual assembly is required, thereby achieving the purpose of easy installation, thereby simplifying the installation process, improving the installation efficiency, reducing the risk of installation, and facilitating the use of users. It solves the problem that in the prior art, steel arch frames or steel grating arch frames are generally used to support tunnels. After the steel arch frames or steel grating arch frames are processed, they need to be installed manually to fix them on the tunnel wall. Due to this installation method, it is very time-consuming, and the structure inside the tunnel is very unstable in the early stage of tunnel excavation. Long-term assembly one by one is very likely to cause collapse. Moreover, when installing on the top of the tunnel, due to the high terrain, a certain installation risk is further increased.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tunnel support with high safety for civil engineering, comprising a bottom plate (1), characterized in that: Support feet (2) are provided at both the front and rear ends of the left and right sides of the bottom of the bottom plate (1); mounting plates (3) are provided at both the left and right sides of the top of the bottom plate (1); a shell (4) having one end fixedly connected to the top of the right mounting plate (3) is provided at the top of the left mounting plate (3); a moving component (5) having one end fixedly connected to the bottom of the shell (4) and the other end extending to the bottom of the bottom plate (1) is provided between the two mounting plates (3); threaded rods (6) having one end movably connected to the right side of the inner wall of the shell (4) are provided at both the upper and lower ends of the left side of the inner wall of the shell (4); threaded sleeves (7) are provided at both the left and right ends of the outer sides of the two threaded rods (6); two traction blocks (8) symmetrically distributed on the left and right are provided inside the shell (4); the left traction block (8) is fixedly connected to the outer sides of the two threaded sleeves (7) on the left and the right traction block (8) is fixedly connected to the outer sides of the two threaded sleeves (7) on the right; and the two traction blocks (8) are provided with threaded sleeves (7) on the upper and lower sides on the opposite sides. A mounting block (9) is provided between the two mounting blocks (9) and one end of which extends to the left and right sides of the housing (4); the two mounting blocks (9) are provided with side panels (10) on opposite sides; the bottoms of the two side panels (10) are provided with support blocks (11) on opposite sides, one end of which is fixedly connected to the bottoms of the two mounting blocks (9); the inner top wall of the housing (4) is provided with a driving assembly (12) with one end fixedly connected to the outside of the two threaded rods (6) and the other end extending to the bottom of the housing (4); the left and right sides of the top of the housing (4) Both are provided with a mounting frame (13), and a moving block (14) with one end extending to the top thereof is provided inside the two mounting frames (13), and a top plate (15) with one end fixedly connected to the top of the right moving block (14) is provided on the top of the left moving block (14), and hydraulic jacks (16) located between the two mounting frames (13) are provided at the front and rear ends on the left and right sides of the top of the housing (4), and the output ends of the four hydraulic jacks (16) are fixedly connected to the bottom of the top plate (15).

2. A tunnel support with high safety for civil engineering according to claim 1, characterized in that: The moving assembly (5) comprises a moving plate (51), the moving plate (51) being movably mounted between the two mounting plates (3), columns (52) having one end extending to the bottom of the base plate (1) being fixedly mounted at both front and rear ends on the left and right sides of the bottom of the moving plate (51), and walking wheels (53) being fixedly mounted at the bottoms of the four columns (52), hydraulic cylinders (54) located between the two mounting plates (3) being fixedly mounted at both front and rear ends on the left and right sides of the bottom of the housing (4), and output ends of the four hydraulic cylinders (54) being fixedly connected to the top of the moving plate (51).

3. A tunnel support with high safety for civil engineering according to claim 1, characterized in that: The driving assembly (12) comprises a servo motor (121), the bottom of the housing (4) having the servo motor (121) fixedly mounted thereon and located between the two mounting plates (3), the output shaft of the servo motor (121) extending into the interior of the housing (4) and fixedly mounted thereon a worm (122) located at the rear side of the two threaded rods (6) and having one end movably connected to the inner top wall of the housing (4), and the outer sides of the two threaded rods (6) each having a worm wheel (123) fixedly mounted thereon and located between the left and right threaded sleeves (7) and having one end meshing with the worm (122).

4. A tunnel support with high safety for civil engineering according to claim 2, characterized in that: Through holes matching the upright posts (52) are provided at the front and rear ends of the left and right sides of the top of the bottom plate (1), and the upright posts (52) on the left and right sides are located on the opposite sides of the left and right supporting feet (2).

5. The tunnel support with high safety for civil engineering according to claim 1, characterized in that: First bearings are fixedly mounted at both upper and lower ends of the left and right sides of the inner wall of the shell (4); the threaded rod (6) is rotatably connected to the inner wall of the shell (4) via the first bearing; and the outer sides of the two threaded rods (6) are each provided with two sections of thread, and the two sections of thread are of equal length and opposite directions.

6. The high-safety tunnel support for civil engineering according to claim 3, characterized in that: A second bearing located between two traction blocks (8) is fixedly mounted on the inner top wall of the housing (4), and the worm (122) is rotatably connected to the inner top wall of the housing (4) via the second bearing.

Images