Supporting device for tunnel construction and using method thereof

Abstract

The invention provides a supporting device for tunnel construction. The supporting device comprises a bottom frame, a hydraulic cylinder is arranged on the bottom frame, the telescopic end of the hydraulic cylinder is connected with a lifting plate through a pressure-sensitive sensor, the upper portion of the lifting plate is connected with an arc-shaped top plate aiming at the top of a tunnel through a plurality of first elastic supporting rods, and the two ends of each first elastic supporting rod are hinged to the lifting plate and the top plate correspondingly; a plurality of supporting assemblies are further arranged at the bottom of the lifting plate, and a plurality of sliding assemblies connected with the supporting assemblies are arranged on the bottom frame; two transmission assemblies are further arranged at the bottom of the lifting plate, two positioning assemblies aiming at the left side wall and the right side wall of the tunnel respectively are arranged on the two transmission assemblies, and at least one transmission rod in linkage with the transmission assembly is arranged at the bottom of a top plate corresponding to each transmission assembly; the hydraulic cylinder and the pressure-sensitive sensor are electrically connected with a controller arranged on the bottom frame. The supporting device for tunnel construction is ingenious and practical in structural design, convenient to operate and extremely high in practicability.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and in particular to a supporting device for tunnel construction and a method of using the same. Background Art

[0002] Tunnel construction usually refers to the excavation of passages in mountains or underground. During tunnel construction, in order to avoid landslides on the top of the tunnel, support devices are usually required for support and protection.

[0003] Most of the existing support devices are composed of anchor rod welding or riveting, which is inconvenient to adjust, install or disassemble, increases the complexity of installation, prolongs the installation period, and is inconvenient to install and protect in a timely manner.

[0004] Therefore, a new support equipment is needed to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a tunnel construction support device and a method for using the same, and the specific scheme is as follows: A support device for tunnel construction, comprising a base frame, on which a hydraulic cylinder is provided, the telescopic end of the hydraulic cylinder is connected to a lifting plate via a pressure-sensitive sensor, the upper part of the lifting plate is connected to an arc-shaped top plate for the top of the tunnel via a plurality of elastic support rods, the two ends of the elastic support rods are respectively hinged to the lifting plate and the top plate; the bottom of the lifting plate is also provided with a plurality of support assemblies, the base frame is provided with a plurality of sliding assemblies respectively connected to each of the support assemblies; the bottom of the lifting plate is also provided with two groups of transmission assemblies, the two groups of transmission assemblies are provided with two groups of positioning assemblies respectively for the left and right side walls of the tunnel, corresponding to each group of transmission assemblies, the bottom of the top plate is provided with at least one transmission rod linked thereto; the hydraulic cylinder and the pressure-sensitive sensor are both electrically connected to a controller arranged on the base frame.

[0006] Based on the above, the support assembly includes a support frame fixedly mounted on the bottom of the lifting plate, a connecting rod is rotatably provided on the support frame, a threaded tube is fixedly provided at the bottom end of the connecting rod, the threaded tube is screwed with the threaded rod, and a hinge frame is fixedly provided at the bottom end of the threaded rod; the sliding assembly includes a slider, the slider is slidably arranged in a slide groove opened on the base frame, a positioning plate is also slidably arranged in the slide groove, a bolt is screwed through the positioning plate, the bottom end of the bolt is connected to the slider through a rotating joint, a handle is provided on the top of the bolt, and a bracket is also provided on the slider; the bracket is hinged to the hinge frame through a pin shaft.

[0007] Based on the above, the transmission assembly includes a support plate frame arranged under the lifting plate, a rotating rod is rotatably provided on the support plate frame, and the left and right ends of the rotating rod are provided with threaded sections with opposite rotation directions, and a driven gear corresponding to the transmission rod is also fixed on the rotating rod; the two ends of the rotating rod are respectively transmitted to the connecting rod through a bevel gear transmission structure; the transmission rod passes through a clearance hole opened on the lifting plate, and a plurality of transmission teeth corresponding to the driven gear are provided on the transmission rod; the positioning assembly includes a movable plate frame, and the movable plate frame is connected to the side plate through a plurality of elastic support rods, and the side plate is provided with a plurality of positioning teeth for the side wall of the tunnel, and the movable plate frame is screwed to the rotating rods in the two sets of transmission assemblies.

[0008] Based on the above, a guide groove is provided on the transmission rod, and a guide block corresponding to the guide groove is fixed in the clearance hole.

[0009] Based on the above, the upper surface of the positioning plate is rough.

[0010] Based on the above, a plurality of supporting legs are provided at the bottom of the base frame, and a universal wheel with a locking mechanism is rotatably provided at the bottom of the supporting legs.

[0011] According to the method for using the above-mentioned tunnel construction support device, it is characterized by comprising the following steps: Step 1: When using the support device to support the inner wall of the tunnel, first move the device to the area in the tunnel that needs support, and then lock the universal wheels; Step 2: Then, according to experience, the pressure warning value measured by the pressure sensitive sensor is set through the controller; Step 3: Start the hydraulic cylinder, the lifting plate rises upward, and as the lifting plate rises, the threaded barrel in the support assembly rotates, thereby extending the support assembly, and the sliding assembly moves in the guide groove; Step 4: When the top plate touches the top of the tunnel, as the telescopic end of the hydraulic cylinder continues to extend, the elastic support rod 1 is squeezed, the lifting plate moves upward relative to the transmission rod, the transmission teeth on the transmission rod drive the driven gear to rotate, and then the rotating rod rotates, and the moving plate frame moves on the rotating rod, so that the positioning assembly contacts the side wall of the tunnel and squeezes the elastic support rod 2; Step 5: When the pressure sensor reaches the pressure warning value, the controller turns off the hydraulic cylinder, and then manually rotates the handle at the top of the bolt in the sliding assembly so that the positioning plate fits the top of the guide groove to position the support assembly, and the support work is completed; Step 6: When the support device needs to be transferred, first rotate the handle in the sliding assembly in the opposite direction to disengage the positioning plate from the top of the guide groove, then control the telescopic end of the hydraulic cylinder to retract, and as the lifting plate falls, the threaded barrel rotates to shorten the support assembly, and the sliding assembly moves in the guide groove. At the same time, the lifting plate moves downward relative to the transmission rod, and the transmission teeth on the transmission rod drive the driven gear to rotate, thereby reversing the rotating rod, and the moving plate frame moves on the rotating rod, causing the elastic support rod 2 in the positioning assembly to gradually extend, and finally the positioning teeth on the side plate disengage from the side wall of the tunnel, and then release the lock on the universal wheel to move the device.

[0012] The present invention has outstanding substantive features and significant progress compared to the prior art. Specifically, the present invention has the following advantages: The support device for tunnel construction provided by the present invention and the use method thereof, when it is necessary to support the inner wall of the tunnel, it is only necessary to set the pressure warning value measured by the pressure-sensitive sensor according to experience, and then start the hydraulic cylinder. After the pressure value measured by the pressure-sensitive sensor reaches the pressure warning value, the hydraulic cylinder stops working, and then the handle in the sliding assembly is rotated to position the sliding assembly to complete the support work; conversely, when it is necessary to release the support work, it is only necessary to rotate the handle in the opposite direction, and then control the telescopic end of the hydraulic cylinder to retract; the structural design of the device is ingenious and practical, and the cost is low, and it has the technical advantage of being easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 yes Figure 1 Schematic diagram of the structure at point A in the middle.

[0015] Figure 3 It is a schematic diagram of the local matching structure of the present invention.

[0016] Figure 4 It is a top view of the local matching structure of the present invention.

[0017] Figure 5 It is a partial structural schematic diagram of the transmission rod in the present invention.

[0018] In the figure: 1. base frame; 1-1. slide; 2. support leg; 3. universal wheel; 4. hydraulic cylinder; 5. lifting plate; 6. support assembly; 6-1. support frame; 6-2. connecting rod; 6-3. threaded cylinder; 6-4. threaded rod; 6-5. articulated frame; 7. elastic support rod one; 8. top plate; 9. transmission rod; 9-1. transmission tooth; 9-2. guide groove; 10. support plate frame; 11. rotating rod; 12. driven gear; 13. slider; 14. bracket; 15. positioning plate; 16. bolt; 17. pressure sensitive sensor; 18. controller; 19. moving plate frame; 20. elastic support rod two; 21. side plate; 22. positioning tooth. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described in detail below through specific implementation methods. Example

[0020] like Figure 1-5 As shown, the present invention provides a support device for tunnel construction, including a base frame 1, on which a hydraulic cylinder 4 is provided, and the telescopic end of the hydraulic cylinder 4 is connected to a lifting plate 5 through a pressure-sensitive sensor 17, and the upper part of the lifting plate 5 is connected to an arc-shaped top plate 8 for the top of the tunnel through a plurality of elastic support rods 7, and the two ends of the elastic support rods 7 are respectively hinged to the lifting plate 5 and the top plate 8; the bottom of the lifting plate 5 is also provided with a plurality of support assemblies 6, and the base frame 1 is provided with a plurality of sliding assemblies respectively connected to each of the support assemblies 6; the bottom of the lifting plate 5 is also provided with two groups of transmission assemblies, and the two groups of transmission assemblies are provided with two groups of positioning assemblies respectively for the left and right side walls of the tunnel, and the bottom of the top plate 8 corresponding to each group of transmission assemblies is provided with at least one transmission rod 9 arranged in linkage with it; the hydraulic cylinder 4 and the pressure-sensitive sensor 17 are both electrically connected to a controller 18 arranged on the base frame 1.

[0021] The above-mentioned support assembly 6 is used to stabilize the supporting device, which includes a support frame 6-1 fixedly mounted on the bottom of the lifting plate 5, a connecting rod 6-2 is rotatably provided on the support frame 6-1, a threaded tube 6-3 is fixedly mounted on the bottom end of the connecting rod 6-2, the threaded tube 6-3 is screwed with a threaded rod 6-4, and a hinged frame 6-5 is fixedly mounted on the bottom end of the threaded rod 6-4; the sliding assembly is used to fix the bottom of the support assembly 6, and includes a slider 13, the slider 13 is slidably arranged in a slide groove 1-1 opened on the base frame 1, a positioning plate 15 is also slidably arranged in the slide groove 1-1, a bolt 16 is screwed through the positioning plate 15, the bottom end of the bolt 16 is connected to the slider 13 through a rotating joint, a handle is provided on the top end of the bolt 16, and a bracket 14 is also provided on the slider 13; the bracket 14 is hinged to the hinged frame 6-5 through a pin.

[0022] The above-mentioned transmission assembly includes a support plate frame 10 arranged below the lifting plate 5, and a rotating rod 11 is rotatably provided on the support plate frame 10, and the left and right ends of the rotating rod 11 are provided with threaded sections with opposite rotation directions, and a driven gear 12 corresponding to the transmission rod 9 is also fixed on the rotating rod 11; the two ends of the rotating rod 11 are respectively transmitted to the connecting rod 6-2 through a bevel gear transmission structure; the transmission rod 9 passes through the clearance hole opened on the lifting plate 5, and the transmission rod 9 is provided with a plurality of transmission teeth 9-1 corresponding to the driven gear 12; the positioning assembly includes a movable plate frame 19, and the movable plate frame 19 is connected to the side plate 21 through a plurality of elastic support rods 20, and the side plate 21 is provided with a plurality of positioning teeth 22 for the side wall of the tunnel, and the movable plate frame 19 is screwed with the rotating rods 11 in the two groups of transmission assemblies.

[0023] In order to ensure that the transmission rod 9 can move up and down stably, a guide groove 9-2 is opened on the transmission rod 9, and a guide block for the guide groove 9-2 is fixed in the clearance hole.

[0024] It should be noted that, in order to ensure that the sliding assembly is firmly locked, the upper surface of the positioning plate 15 is rough.

[0025] In order to facilitate the movement of the device, a plurality of supporting legs 2 are provided at the bottom of the base frame 1, and a universal wheel 3 with a locking mechanism is rotatably provided at the bottom of the supporting legs 2.

[0026] According to the method for using the above-mentioned tunnel construction support device, it is characterized by comprising the following steps: Step 1: When using the support device to support the inner wall of a tunnel, first move the device to the area in the tunnel that needs support, and then lock the universal wheel 3; Step 2: Then, the pressure warning value measured by the pressure sensitive sensor 17 is set by the controller 18 according to experience; Step 3: Start the hydraulic cylinder 4, and the lifting plate 5 rises upward. As the lifting plate 5 rises, the threaded cylinder 6-3 in the support assembly 6 rotates, thereby extending the support assembly 6, and the sliding assembly moves in the guide groove 9-2; Step 4: When the top plate 8 touches the top of the tunnel, as the telescopic end of the hydraulic cylinder 4 continues to extend, the elastic support rod 1 7 is squeezed, and the lifting plate 5 moves upward relative to the transmission rod 9. The transmission tooth 9-1 on the transmission rod 9 drives the driven gear 12 to rotate, thereby rotating the rotating rod 11, and the movable plate frame 19 moves on the rotating rod 11, so that the positioning assembly contacts the side wall of the tunnel and squeezes the elastic support rod 2 20; Step 5: When the pressure sensor reaches the pressure warning value, the controller 18 turns off the hydraulic cylinder 4, and then manually rotates the handle at the top of the bolt 16 in the sliding assembly so that the positioning plate 15 fits the top of the guide groove 9-2 to position the support assembly 6, and the support work is completed; Step 6: When the support device needs to be transferred, first rotate the handle in the sliding assembly in the opposite direction to disengage the positioning plate 15 from the top of the guide groove 9-2, then control the telescopic end of the hydraulic cylinder 4 to retract, and as the lifting plate 5 falls, the threaded barrel 6-3 rotates to shorten the support assembly 6, and the sliding assembly moves in the guide groove 9-2. At the same time, the lifting plate 5 moves downward relative to the transmission rod 9, and the transmission tooth 9-1 on the transmission rod 9 drives the driven gear 12 to rotate, thereby reversing the rotating rod 11, and the movable plate frame 19 moves on the rotating rod 11, so that the elastic support rod 20 in the positioning assembly gradually extends, and finally the positioning tooth 22 on the side plate 21 disengages from the side wall of the tunnel, and then the lock of the universal wheel 3 is released, and the device can be moved.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A support device for tunnel construction, characterized in that: The invention comprises a base frame (1), wherein a hydraulic cylinder (4) is provided on the base frame (1), wherein the telescopic end of the hydraulic cylinder (4) is connected to a lifting plate (5) via a pressure-sensitive sensor (17), wherein the upper part of the lifting plate (5) is connected to an arc-shaped top plate (8) corresponding to the top of the tunnel via a plurality of elastic support rods (7), wherein the two ends of the elastic support rods (7) are respectively hinged to the lifting plate (5) and the top plate (8); wherein a plurality of support assemblies (6) are further provided at the bottom of the lifting plate (5), wherein a plurality of sliding assemblies respectively connected to each of the support assemblies (6) are provided on the base frame (1); wherein two groups of transmission assemblies are further provided at the bottom of the lifting plate (5), wherein two groups of positioning assemblies respectively corresponding to the left and right side walls of the tunnel are provided on the two groups of transmission assemblies, and wherein at least one transmission rod (9) arranged in linkage with the top plate (8) is arranged at the bottom of each group of transmission assemblies; and wherein the hydraulic cylinder (4) and the pressure-sensitive sensor (17) are both electrically connected to a controller (18) arranged on the base frame (1).

2. The tunnel construction support device according to claim 1, characterized in that: The support assembly (6) comprises a support frame (6-1) fixedly arranged at the bottom of the lifting plate (5); a connecting rod (6-2) is rotatably arranged on the support frame (6-1); a threaded cylinder (6-3) is fixedly arranged at the bottom end of the connecting rod (6-2); the threaded cylinder (6-3) is screwed to the threaded rod (6-4); a hinge frame (6-5) is fixedly arranged at the bottom end of the threaded rod (6-4); the sliding assembly comprises a slider (13); the slider (13) is slidably arranged in a slide groove (1-1) provided on the base frame (1); a positioning plate (15) is also slidably arranged in the slide groove (1-1); a bolt (16) is screwed through the positioning plate (15); the bottom end of the bolt (16) is connected to the slider (13) through a rotating joint; a handle is arranged at the top end of the bolt (16); a bracket (14) is also arranged on the slider (13); the bracket (14) is hinged to the hinge frame (6-5) through a pin shaft.

3. The tunnel construction support device according to claim 2, characterized in that: The transmission assembly comprises a support plate frame (10) arranged below the lifting plate (5), a rotating rod (11) being rotatably arranged on the support plate frame (10), the left and right ends of the rotating rod (11) being provided with threaded sections with opposite rotation directions, and a driven gear (12) corresponding to the transmission rod (9) being fixedly arranged on the rotating rod (11); the two ends of the rotating rod (11) are respectively arranged for transmission with the connecting rod (6-2) through a bevel gear transmission structure; the transmission rod (9) passes through a clearance hole provided on the lifting plate (5), and the transmission rod (9) is provided with a plurality of transmission teeth (9-1) corresponding to the driven gear (12); the positioning assembly comprises a moving plate frame (19), the moving plate frame (19) being connected to a side plate (21) through a plurality of elastic support rods (20), the side plate (21) being provided with a plurality of positioning teeth (22) for the tunnel side wall, and the moving plate frame (19) being screwed to the rotating rods (11) in the two sets of transmission assemblies.

4. The tunnel construction support device according to claim 3, characterized in that: The transmission rod (9) is provided with a guide groove (9-2), and a guide block corresponding to the guide groove (9-2) is fixedly arranged in the clearance hole.

5. The tunnel construction support device according to claim 4, characterized in that: The upper surface of the positioning plate (15) is rough.

6. The tunnel construction support device according to claim 5, characterized in that: A plurality of supporting legs (2) are provided at the bottom of the base frame (1), and a universal wheel (3) with a locking mechanism is rotatably provided at the bottom of the supporting legs (2).

7. The method for using the tunnel construction support device according to claim 6, characterized in that The following steps are involved: Step 1: When using the support device to support the inner wall of a tunnel, first move the device to the area in the tunnel that needs to be supported, and then lock the universal wheel (3); Step 2: Then, according to experience, the pressure warning value measured by the pressure sensitive sensor (17) is set through the controller (18); Step 3: Start the hydraulic cylinder (4), and the lifting plate (5) rises upward. As the lifting plate (5) rises, the threaded cylinder (6-3) in the support assembly (6) rotates, thereby extending the support assembly (6), and the sliding assembly moves in the guide groove (9-2); Step 4: When the top plate (8) touches the top of the tunnel, as the telescopic end of the hydraulic cylinder (4) continues to extend, the elastic support rod 1 (7) is squeezed, the lifting plate (5) moves upward relative to the transmission rod (9), and the transmission teeth (9-1) on the transmission rod (9) drive the driven gear (12) to rotate, thereby causing the rotating rod (11) to rotate, and the movable plate frame (19) moves on the rotating rod (11), so that the positioning assembly contacts the side wall of the tunnel and squeezes the elastic support rod 2 (20); Step 5: When the pressure sensor reaches the pressure warning value, the controller (18) turns off the hydraulic cylinder (4), and then manually rotates the handle at the top of the bolt (16) in the sliding assembly so that the positioning plate (15) fits the top of the guide groove (9-2) to position the support assembly (6), and the support work is completed; Step 6: When the support device needs to be moved, first, the handle in the sliding assembly is rotated in the opposite direction so that the positioning plate (15) is disengaged from the top of the guide groove (9-2), and then the telescopic end of the hydraulic cylinder (4) is controlled to be retracted. As the lifting plate (5) falls, the threaded cylinder (6-3) rotates to shorten the support assembly (6), and the sliding assembly moves in the guide groove (9-2). At the same time, the lifting plate (5) moves downward relative to the transmission rod (9), and the transmission teeth (9-1) on the transmission rod (9) drive the driven gear (12) to rotate, thereby causing the rotating rod (11) to reverse, and the moving plate frame (19) moves on the rotating rod (11), so that the elastic support rod 2 (20) in the positioning assembly gradually extends, and finally the positioning teeth (22) on the side plate (21) are disengaged from the tunnel side wall, and then the lock of the universal wheel (3) is released, and the device can be moved.

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