Auxiliary positioning device for tunnel lagging jack

Abstract

The utility model discloses an auxiliary positioning device for a tunnel lagging jack, which belongs to the technical field of tunnel support and comprises a support base, an outer sleeve is arranged at the upper end of the support base, a movable rod is arranged in the outer sleeve, a clamping and positioning component is arranged at the top end of the movable rod, a connecting block is arranged on one side of the bottom end of the movable rod, and a clamping and positioning component is arranged on the other side of the bottom end of the movable rod. A lower mounting ring is arranged on the surface of the connecting block, an upper mounting ring is arranged on one side of the upper end of the outer sleeve, a chain block is arranged at the lower end of the upper mounting ring, and a chain corresponding to the lower mounting ring is arranged at the bottom end of the chain block; the chain block is adopted to adjust the length of the chain and pull up the bottom of the movable rod so as to adjust the use height of the supporting frame, the tunnel arch frame can be supported in an auxiliary mode, then the tunnel arch frame can be positioned in an auxiliary mode, the equipment is low in use cost and convenient to use, tunnel construction efficiency is improved, operation can be conducted by a single person, and manpower resources are saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel support, and particularly relates to a device for auxiliary positioning of a tunnel arch. Background Technique

[0002] A tunnel is an engineering structure buried in the stratum and is a form of human utilization of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, mine tunnels, and military tunnels.

[0003] The existing tunnel arch positioning device has a high use cost, is not convenient to move and carry, affects the convenience of tunnel construction, increases the construction cost, wastes positioning time, and cannot perform bite support on tunnel arches of different specifications, and is prone to shaking during support, affecting the stability of the support work. Content of the Utility Model

[0004] To solve the problems raised in the above background technique. The utility model provides a device for auxiliary positioning of a tunnel arch, which has the characteristics of stable support and firm installation.

[0005] To achieve the above object, the utility model provides the following technical solution: A device for auxiliary positioning of a tunnel arch, including a support base, an outer sleeve is arranged at the upper end of the support base, a movable rod is arranged inside the outer sleeve, a clamping and positioning assembly is arranged at the top end of the movable rod, a connecting block is arranged at one side of the bottom end of the movable rod, a lower mounting ring is arranged on the surface of the connecting block, an upper mounting ring is arranged at one side of the upper end of the outer sleeve, a chain block is arranged at the lower end of the upper mounting ring, and a chain is arranged at the bottom end of the chain block corresponding to the lower mounting ring.

[0006] Preferably, a guiding chute is arranged on the surface of the outer sleeve corresponding to the connecting block, and the connecting block and the movable rod are fixed by brazing.

[0007] Preferably, a ground nail is arranged at the bottom end of the support base, and the support base and the outer sleeve are of an integral structure.

[0008] Preferably, the clamping and positioning assembly includes a clamping plate, a mounting seat, a bidirectional lead screw, a hand wheel and a limiting device. Among them, a mounting seat is arranged at the top end of the movable rod, a bidirectional lead screw is arranged inside the mounting seat, clamping plates are symmetrically arranged on the surface of the bidirectional lead screw, a hand wheel is arranged at one end of the bidirectional lead screw, and a limiting device is arranged at one side of the mounting seat corresponding to the hand wheel.

[0009] Preferably, anti-slip pads are arranged on the opposite side surfaces of the clamping plates, and reinforcing plates are symmetrically arranged on the side of the clamping plates away from the anti-slip pads.

[0010] Preferably, the limiting device includes a jack, a plug rod, a guide plate, a limiting baffle, a movable block, a bearing and a limiting spring. Among them, a guide plate is provided on one side of the mounting seat, a limiting baffle is provided on one side of the guide plate, a plug rod is provided inside the guide plate, a bearing is provided at one end of the plug rod, a movable block is provided on one side of the bearing, a limiting spring is provided between the guide plate and the bearing, and a jack corresponding to the plug rod is provided inside the handwheel.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. By using a chain block to adjust the length of the chain, pulling up the bottom of the movable rod to adjust the use height of the support frame, so as to play an auxiliary support for the tunnel arch frame, and further assist in positioning the tunnel arch frame. The equipment has low use cost, is easy to use, improves the tunnel construction efficiency, and can be operated by a single person, saving human resources.

[0013] 2. By setting a clamping and positioning component, it can conveniently bite and support tunnel arch frames of different specifications, prevent the arch frame from loosening during the positioning process, improve the use effect of the equipment, ensure the stability of the support, and set a limiting device to prevent the handwheel from loosening, further improving the biting strength and ensuring the use quality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic structural diagram of the clamping and positioning component of the present utility model;

[0016] Figure 3 is a schematic structural diagram of the limiting device of the present utility model.

[0017] In the figure: 1. Clamping and positioning component; 11. Clamping plate; 12. Anti-slip pad; 13. Mounting seat; 14. Bidirectional lead screw; 15. Handwheel; 16. Limiting device; 161. Jack; 162. Plug rod; 163. Guide plate; 164. Limiting baffle; 165. Movable block; 166. Bearing; 167. Limiting spring; 17. Reinforcing plate; 2. Movable rod; 3. Outer sleeve; 4. Support base; 5. Connecting block; 6. Lower mounting ring; 7. Chain; 8. Chain block; 9. Upper mounting ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] Embodiment 1

[0020] Please refer to Figures 1-3 , the present utility model provides the following technical solutions: A device for auxiliary positioning of a tunnel arch includes a support base 4. An outer sleeve 3 is provided at the upper end of the support base 4. A movable rod 2 is provided inside the outer sleeve 3. A clamping and positioning assembly 1 is provided at the top of the movable rod 2. A connecting block 5 is provided on one side of the bottom end of the movable rod 2. A lower mounting ring 6 is provided on the surface of the connecting block 5. An upper mounting ring 9 is provided on one side of the upper end of the outer sleeve 3. A chain hoist 8 is provided at the lower end of the upper mounting ring 9. A chain 7 is provided at the bottom end of the chain hoist 8 corresponding to the lower mounting ring 6.

[0021] Specifically, a guiding chute is provided on the surface of the outer sleeve 3 corresponding to the connecting block 5. The connecting block 5 and the movable rod 2 are fixed by brazing.

[0022] By adopting the above technical solution, it is ensured that pulling the chain hoist 8 can drive the chain 7 to wind, so as to adjust the use length of the chain 7, and further adjust the use length of the movable rod 2.

[0023] Specifically, a ground spike is provided at the bottom end of the support base 4. The support base 4 and the outer sleeve 3 are of an integral structure.

[0024] By adopting the above technical solution, the use strength of the support base 4 is improved, and the stability of the support is ensured.

[0025] When this embodiment is in use: The staff drives the chain 7 to wind by pulling the chain hoist 8, adjusts the use length of the movable rod 2, so as to assist in positioning and supporting the tunnel arch, improve the convenience of equipment use, and ensure the work quality.

[0026] Embodiment 2

[0027] The difference between this embodiment and Embodiment 1 is that: Specifically, the clamping and positioning assembly 1 includes a clamping plate 11, a mounting seat 13, a bidirectional lead screw 14, a hand wheel 15 and a limiting device 16. Among them, a mounting seat 13 is provided at the top of the movable rod 2. A bidirectional lead screw 14 is provided inside the mounting seat 13. Clamping plates 11 are symmetrically provided on the surface of the bidirectional lead screw 14. A hand wheel 15 is provided at one end of the bidirectional lead screw 14. A limiting device 16 is provided on one side of the mounting seat 13 corresponding to the hand wheel 15.

[0028] By adopting the above technical solution, the clamping and positioning assembly 1 is corresponded to the tunnel arch support. Rotating the handwheel 15 drives the bidirectional lead screw 14 to rotate. At the same time, the clamping plate 11 slides along the inside of the mounting seat 13 and clamps both sides of the tunnel arch support, ensuring the stability of the equipment for the bite support of the tunnel arch support.

[0029] Specifically, an anti-slip pad 12 is provided on the surface of one side of the clamping plate 11, and reinforcing plates 17 are symmetrically arranged on the side of the clamping plate 11 away from the anti-slip pad 12.

[0030] By adopting the above technical solution, the stability of the clamping of the clamping plate 11 to the tunnel arch support is improved, the service strength of the clamping plate 11 is ensured, and the service life is increased.

[0031] Specifically, the limiting device 16 includes a jack 161, a plug rod 162, a guide plate 163, a limiting baffle 164, a movable block 165, a bearing 166 and a limiting spring 167. Among them, a guide plate 163 is provided on one side of the mounting seat 13, a limiting baffle 164 is provided on one side of the guide plate 163, a plug rod 162 is arranged inside the guide plate 163, a bearing 166 is provided at one end of the plug rod 162, a movable block 165 is provided on one side of the bearing 166, and a limiting spring 167 is arranged between the guide plate 163 and the bearing 166. A jack 161 corresponding to the plug rod 162 is provided inside the handwheel 15.

[0032] By adopting the above technical solution, the limiting spring 167 is installed between the guide plate 163 and the bearing 166 by brazing. Rotating the movable block 165 along the bearing 166 makes the limiting baffle 164 no longer block it. At this time, the stretched limiting spring 167 resets, causing the movable block 165 and the plug rod 162 to move, and the plug rod 162 is inserted into the jack 161 inside the handwheel 15 to limit it, preventing the handwheel 15 from loosening during the support process, improving the support strength, and ensuring the stability of the support.

[0033] When this embodiment is in use: When it is necessary to position and support the tunnel arch support during the tunnel construction process, the equipment is moved to one side of the tunnel arch support, and then the equipment is fixed through the support base 4. Then, the clamping and positioning assembly 1 is corresponded to the tunnel arch support. Rotating the handwheel 15 drives the bidirectional lead screw 14 to rotate. At the same time, the clamping plate 11 slides along the inside of the mounting seat 13 and clamps both sides of the tunnel arch support, ensuring the stability of the equipment for the bite support of the tunnel arch support;

[0034] Then rotate the movable stop block 165 along the bearing 166 so that the limit baffle 164 no longer blocks it. At this time, the stretched limit spring 167 resets, causing the movable stop block 165 and the insertion rod 162 to move. The insertion rod 162 is inserted into the jack 161 inside the handwheel 15 to limit it, preventing the handwheel 15 from loosening during the support process, improving the support strength, and ensuring the stability of the support.

[0035] The chain block 8 in the present utility model is a publicly known prior art, and the selected model is HSZ-A2T3M.

[0036] The working principle and usage process of the present utility model: When the present utility model is in use, during the tunnel construction process, when it is necessary to position and support the tunnel arch, move the device to one side of the tunnel arch, then fix the device through the support base 4, align the clamping and positioning assembly 1 with the tunnel arch, rotate the handwheel 15 to drive the bidirectional lead screw 14 to rotate, and at the same time, the clamping plate 11 slides along the inside of the mounting seat 13 and clamps both sides of the tunnel arch to ensure the stability of the device's biting support for the tunnel arch;

[0037] Then rotate the movable stop block 165 along the bearing 166 so that the limit baffle 164 no longer blocks it. At this time, the stretched limit spring 167 resets, causing the movable stop block 165 and the insertion rod 162 to move. The insertion rod 162 is inserted into the jack 161 inside the handwheel 15 to limit it, preventing the handwheel 15 from loosening during the support process, improving the support strength, and ensuring the stability of the support;

[0038] The staff then pulls the chain block 8 to drive the chain 7 to wind, adjusting the use length of the movable rod 2 to assist in positioning and supporting the tunnel arch, improving the convenience of device use, and ensuring the work quality.

[0039] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A device for auxiliary positioning of a tunnel arch, comprising a support base (4), characterized in that: An outer sleeve (3) is provided at the upper end of the support base (4), a movable rod (2) is provided inside the outer sleeve (3), a clamping positioning assembly (1) is provided at the top end of the movable rod (2), a connecting block (5) is provided at one side of the bottom end of the movable rod (2), a lower mounting ring (6) is provided on the surface of the connecting block (5), an upper mounting ring (9) is provided at one side of the upper end of the outer sleeve (3), a hand chain hoist (8) is provided at the lower end of the upper mounting ring (9), and a chain (7) is provided at the bottom end of the hand chain hoist (8) corresponding to the lower mounting ring (6).

2. The device for auxiliary positioning of a tunnel arch according to claim 1, characterized in that: A guide groove is provided on the surface of the outer sleeve (3) corresponding to the connecting block (5), and the connecting block (5) and the movable rod (2) are fixed by brazing.

3. The device for auxiliary positioning of a tunnel arch according to claim 1, characterized in that: The bottom end of the support base (4) is provided with a ground-grasping spike, and the support base (4) and the outer sleeve (3) are an integrated structure.

4. The device for auxiliary positioning of a tunnel arch according to claim 1, characterized in that: The clamping and positioning assembly (1) comprises a clamping plate (11), a mounting seat (13), a bidirectional screw rod (14), a hand wheel (15) and a limiting device (16), wherein a mounting seat (13) is arranged at the top end of the movable rod (2), a bidirectional screw rod (14) is arranged inside the mounting seat (13), a clamping plate (11) is symmetrically arranged on the surface of the bidirectional screw rod (14), a hand wheel (15) is arranged at one end of the bidirectional screw rod (14), and a limiting device (16) is arranged on one side of the mounting seat (13) corresponding to the hand wheel (15).

5. The device for auxiliary positioning of a tunnel arch according to claim 4, characterized in that: An anti-skid pad (12) is arranged on the surface of one side opposite to the clamping plate (11), and a reinforcing plate (17) is symmetrically arranged on the side of the clamping plate (11) away from the anti-skid pad (12).

6. The device for auxiliary positioning of a tunnel arch according to claim 4, characterized in that: The limiting device (16) comprises a plug hole (161), an insert rod (162), a guide plate (163), a limiting baffle (164), a movable baffle (165), a bearing (166) and a limiting spring (167), wherein: A guide plate (163) is provided on one side of the mounting seat (13), a limit stopper (164) is provided on one side of the guide plate (163), an insertion rod (162) is provided inside the guide plate (163), a bearing (166) is provided at one end of the insertion rod (162), a movable stopper (165) is provided on one side of the bearing (166), a limit spring (167) is provided between the guide plate (163) and the bearing (166), and a socket (161) is provided inside the hand wheel (15) corresponding to the insertion rod (162).

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