CN220203925U

CN220203925U - Tunnel supporting device

Info

Publication number: CN220203925U
Application number: CN202321092695.1U
Authority: CN
Inventors: 赵波; 刘韫鑫; 李利; 唐景文
Original assignee: Third Engineering Co Ltd of China Railway 19th Bureau Group Co Ltd
Current assignee: Third Engineering Co Ltd of China Railway 19th Bureau Group Co Ltd
Priority date: 2023-05-09
Filing date: 2023-05-09
Publication date: 2023-12-19
Anticipated expiration: 2033-05-09

Abstract

The utility model relates to the technical field of tunnel support, and discloses a tunnel support device, which comprises a bracket and a hydraulic cylinder, wherein the hydraulic cylinder is fixed on the bracket; still include the support column, the support column is fixed in the expansion end of pneumatic cylinder, just the top of support column is equipped with curved backup pad, the joint has the extension board with sliding in both ends of backup pad, the outside cover ring that closes of support column. According to the utility model, the hydraulic cylinder drives the support column to lift so that the support plate abuts against the inner wall of the tunnel, and the sliding block is integrally and slidably arranged in the sliding groove, so that when the lantern ring is rotated and is enabled to move upwards relative to the support column, the whole support column can be driven to swing, and the extension plate is enabled to slide to two sides relative to the support plate, so that the arc length of a support surface formed by the support plate and the extension plate together is increased, more stable support can be provided for the tunnel, and the tunnel has the advantage of good flexibility.

Description

Tunnel supporting device

Technical Field

The utility model relates to the technical field of tunnel support, in particular to a tunnel support device.

Background

The temporary support device is an important tool for tunnel construction. During construction, the support is erected in the tunnel, the support plate abutting against the inner wall of the tunnel is arranged on the support, and temporary support of the tunnel is completed by the support plate. However, the temporary support device has the problems that the arc length of the support plate is fixed, the size of the support surface is difficult to adjust, and the flexibility is poor.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a tunnel supporting device.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the tunnel supporting device comprises a bracket and a hydraulic cylinder, wherein the hydraulic cylinder is fixed on the bracket; the hydraulic cylinder is characterized by further comprising a support column, wherein the support column is fixed at the movable end of the hydraulic cylinder, an arc-shaped support plate is arranged at the top end of the support column, extension plates are clamped at the two ends of the support plate in a sliding mode, a lantern ring is screwed outside the support column, an annular clamping groove is formed in the peripheral surface of the lantern ring, a sliding block is clamped in the clamping groove in a sliding mode, and a support rod is hinged between the sliding block and the extension plates; the lantern ring is used for rotating relative to the support column to drive the support rod to swing, and then drive the extension board to slide relative to the support plate.

As still further aspects of the utility model: the support column is arranged coaxially with the hydraulic cylinder.

As still further aspects of the utility model: the support column and the support plate are of an integrated structure.

As still further aspects of the utility model: the extension plates are symmetrically arranged at two ends of the support plate.

As still further aspects of the utility model: the top surface of backup pad is equipped with and is used for settling the mounting groove of extension board.

As still further aspects of the utility model: the clamping groove is coaxially arranged with the lantern ring.

As still further aspects of the utility model: a limit groove is formed in the side wall of the clamping groove; the limiting groove and the clamping groove are coaxially arranged; the sliding block is provided with a limiting block which is matched with the limiting groove; the sliding blocks are symmetrically arranged on the lantern ring.

The beneficial effects of the utility model are as follows: when the construction, make the pneumatic cylinder drive the support column lifting earlier to make the backup pad support tightly at the inner wall in tunnel, because the slider sets up in the spout inside on whole slidable, when rotating the lantern ring and making the lantern ring upwards move for the support column, can drive the whole swing that takes place of bracing piece, and then make the extension board slide to both sides for the backup pad, thereby increased the arc length of backup pad and the support surface that the extension board formed jointly, can provide more stable support for the tunnel, have the advantage that the flexibility is good.

Drawings

Fig. 1 is a schematic structural diagram of a tunnel supporting device according to the present utility model;

FIG. 2 is a schematic diagram illustrating connection between a support plate and an extension plate of a tunnel supporting device according to the present utility model;

fig. 3 is a schematic installation diagram of a slider of a tunnel supporting device according to the present utility model.

In the figure: 10-a bracket; 20-a hydraulic cylinder; 30-supporting columns; 40-tunneling; 31-a support plate; 311-mounting slots; 32-collar; 321-clamping grooves; 322-limit groove; 33-supporting rods; 34-an extension plate; 35-a slider; 351-limiting blocks.

Description of the embodiments

The technical scheme of the patent is further described in detail below with reference to the specific embodiments.

Embodiments of the present patent are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present patent and are not to be construed as limiting the present patent.

Referring to fig. 1-3, a tunnel supporting device comprises a bracket 10 and a hydraulic cylinder 20, wherein the hydraulic cylinder 20 is fixed on the bracket 10; the hydraulic cylinder is characterized by further comprising a support column 30, wherein the support column 30 is fixed at the movable end of the hydraulic cylinder 20, an arc-shaped support plate 31 is arranged at the top end of the support column 30, extension plates 34 are slidably clamped at two ends of the support plate 31, a collar 32 is screwed outside the support column 30, an annular clamping groove 321 is formed in the circumferential surface of the collar 32, a sliding block 35 is slidably clamped in the clamping groove 321, and a support rod 33 is hinged between the sliding block 35 and the extension plates 34; the collar 32 is configured to rotate relative to the support post 30 to drive the support post 33 to swing, and thus drive the extension plate 34 to slide relative to the support plate 31.

When the support column 30 is used, the hydraulic cylinder 20 drives the support column 30 to lift, so that the support plate 31 is abutted against the inner wall of the tunnel 40, and the slide block 35 is integrally and slidably arranged in the slide groove 321, so that the support rod 33 can be driven to integrally swing when the lantern ring 32 is rotated and the lantern ring 32 moves upwards relative to the support column 30, and the extension plate 34 slides to two sides relative to the support plate 31, so that the arc length of a support surface formed by the support plate 31 and the extension plate 34 together is increased, more stable support can be provided for the tunnel 40, and the support column has the advantage of good flexibility.

As a preferred embodiment of the present utility model, the fixed end of the hydraulic cylinder 20 is fixedly connected to the top of the bracket 10, the support column 30 is fixedly connected to the movable end of the hydraulic cylinder 20, and is coaxially arranged with the movable end of the hydraulic cylinder 20, and the movable end of the hydraulic cylinder 20 drives the support column 30 to synchronously lift.

As a preferred embodiment of the present utility model, the support plate 31 is integrally constructed in an arc-shaped plate shape adapted to the inner wall of the tunnel 40, the support plate 31 is fixedly connected to the top of the support column 30, the support plate 31 and the support column 30 are integrally formed, the outer wall of the support column 30 is provided with external threads, the inner wall of the collar 32 is provided with internal threads, the collar 32 is screw-connected to the outside of the support column 30, and the collar 32 is rotatable with respect to the support column 30, thereby lifting the collar 32 with respect to the support column 30.

As a preferred embodiment of the present utility model, the top surface of the support plate 31 is provided with mounting grooves 311, the mounting grooves 311 are formed at both ends of the support plate 31 in the arc length direction, the extension plate 34 is fittingly engaged in the mounting grooves 311, and the extension plate 34 is slidable in the arc length direction relative to the support plate 31, and the top surface of the extension plate 34 and the top surface of the support surface 31 are located on the same circumferential surface.

As a preferred embodiment of the present utility model, the extension plates 34 are symmetrically arranged at both ends of the support plate 31.

As a preferred embodiment of the present utility model, the collar 32 is coaxially disposed with the support post 30, the clamping groove 321 is formed on the outer wall of the collar 32 and is coaxially disposed with the collar 32, annular limiting grooves 322 are provided on the upper and lower sidewalls of the clamping groove 321, the limiting grooves 322 are coaxially disposed with the clamping groove 321, the sliding block 35 is slidably clamped in the clamping groove 321 as a whole, limiting blocks 351 adapted to the limiting grooves 322 are formed on the upper and lower sides of the sliding groove 35, the sliding block 35 can be limited in the clamping groove 321 by the clamping cooperation of the limiting blocks 351 and the limiting grooves 322, the sliding block 35 can slide along the circumferential direction of the sliding groove 35, the lower end of the supporting rod 33 is hinged on the sliding block 35, and the upper end of the supporting rod 33 is hinged on the inner wall of the extension plate 34.

As a preferred embodiment of the present utility model, the slider 35 is symmetrically arranged two on the collar 32.

According to the tunnel supporting device of the embodiment, the sliding block is matched with the sliding block of the lantern ring, when the lantern ring is rotated and the lantern ring is enabled to move upwards relative to the supporting column, the supporting rod can be driven to swing integrally, and the extension plate can slide towards two sides relative to the supporting plate, so that the arc length of a supporting surface formed by the supporting plate and the extension plate together is increased, more stable support can be provided for a tunnel, and the tunnel supporting device has the advantage of good flexibility.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The tunnel supporting device comprises a bracket and is characterized by also comprising a hydraulic cylinder, wherein the hydraulic cylinder is fixed on the bracket;

the hydraulic cylinder is characterized by further comprising a support column, wherein the support column is fixed at the movable end of the hydraulic cylinder, an arc-shaped support plate is arranged at the top end of the support column, extension plates are clamped at the two ends of the support plate in a sliding mode, a lantern ring is screwed outside the support column, an annular clamping groove is formed in the peripheral surface of the lantern ring, a sliding block is clamped in the clamping groove in a sliding mode, and a support rod is hinged between the sliding block and the extension plates;

the lantern ring is used for rotating relative to the support column to drive the support rod to swing, and then drive the extension board to slide relative to the support plate.

2. A tunnel supporting device according to claim 1, wherein the supporting column is arranged coaxially with the hydraulic cylinder.

3. A tunnel supporting device according to claim 2, wherein the support column is of unitary construction with the support plate.

4. A tunnel supporting device according to claim 3, wherein the extension plates are symmetrically arranged at both ends of the supporting plate.

5. A tunnel supporting device according to claim 4, wherein the top surface of the supporting plate is provided with a mounting groove for mounting the extension plate.

6. A tunnel supporting device according to claim 5, wherein said clamping groove is arranged coaxially with said collar.

7. The tunnel supporting device according to claim 6, wherein the side wall of the clamping groove is provided with a limit groove; the limiting groove and the clamping groove are coaxially arranged; the sliding block is provided with a limiting block which is matched with the limiting groove; the sliding blocks are symmetrically arranged on the lantern ring.