CN216788455U

CN216788455U - Tunnel arch support device for tunnel construction

Info

Publication number: CN216788455U
Application number: CN202220371202.7U
Authority: CN
Inventors: 李珍梅; 王小娟; 魏元宝
Original assignee: Shanxi Road And Bridge Fourth Engineering Co ltd
Current assignee: Shanxi Road And Bridge Fourth Engineering Co ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-06-21
Anticipated expiration: 2032-02-23

Abstract

The utility model belongs to the technical field of tunnel construction, and provides a tunnel arch support device for tunnel construction, which comprises two lifting columns, wherein the top ends of the two lifting columns are hinged with elastic support components, the two lifting columns are connected through a cross beam, a jacking component is fixedly arranged in the middle area of the cross beam, adjusting components for adjusting the angles of the elastic support components are symmetrically arranged on two sides of the cross beam, one end of each angle adjusting component is hinged with the elastic support component, and the other end of each angle adjusting component is connected with the cross beam in a sliding manner. The tunnel arch supporting device for tunnel construction is suitable for arches with different heights and radians, and is beneficial to enhancing the supporting effect on the arches.

Description

Tunnel arch support device for tunnel construction

Technical Field

The utility model relates to the technical field of tunnel construction, in particular to a tunnel arch supporting device for tunnel construction.

Background

The tunnel construction is a new engineering construction method formed by adopting a system formed by adopting a spray anchor technology, monitoring measurement and the like and a rock mechanics theory.

In the tunnel construction process, the tunnel arch is required to be supported through the supporting device. However, the existing supporting device cannot be adjusted according to the height of the arch, and has the characteristic of poor applicability. Accordingly, there is a need for improvements to existing support devices.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the tunnel arch supporting device for tunnel construction is suitable for arches with different heights and radians, and is favorable for enhancing the supporting effect on the arches.

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model provides a tunnel arched door strutting arrangement for tunnel construction, includes two lift posts, the top of two lift posts all articulates elastic support assembly, and two lift posts pass through the crossbeam and connect, and the middle zone fixed mounting of crossbeam has a jacking subassembly, and the bilateral symmetry of crossbeam is provided with the adjusting part who is used for adjusting the elastic support assembly angle, and angle adjusting part's one end is articulated with elastic support assembly, angle adjusting part's the other end and crossbeam sliding connection.

Further, the lift post includes foundation and cover post, the cover post cover establish on the foundation and with foundation sliding connection, the top fixed mounting of foundation has first limiting plate, the bottom fixed mounting of cover post has the second limiting plate, fixed mounting has driving motor on the foundation, driving motor's output shaft passes first limiting plate and rotates with first limiting plate to be connected, threaded connection first threaded rod on the second limiting plate, first threaded rod and driving motor's output shaft coaxial coupling.

Furthermore, the adjusting assembly comprises an adjusting rod, one end of the adjusting rod is hinged to the elastic supporting assembly, the other end of the adjusting rod is hinged to a sliding block, the sliding block is connected with the cross beam in a sliding mode, a second threaded rod is connected to the sliding block in a threaded mode, and the bottom end of the second threaded rod penetrates through a sliding hole formed in the cross beam and is connected with a nut in a threaded mode.

Further, the elastic support component comprises a support plate, the middle area of the support plate is hinged to the sleeve column, one end of the support plate is hinged to the adjusting rod, a groove is formed in the upper surface of the support plate, a rubber block is fixedly mounted in the groove, a plurality of through grooves are formed in the rubber block, a spring is fixedly mounted at the bottom of the groove and corresponding to the through grooves, a support block is fixedly mounted at the top end of the spring, and the size of the support block is matched with the size of the groove.

Further, the jacking assembly comprises an air cylinder, the air cylinder is fixedly installed on the cross beam, and a jacking plate is fixedly installed on the driving end of the air cylinder.

Further, the lower extreme fixed mounting of foundation has the base.

According to the technical scheme, the utility model has the beneficial effects that: the height of the elastic supporting component is changed through the lifting column so as to adapt to arched doors with different heights, the supporting angle of the elastic supporting component is changed through the adjusting component, the arched doors with different radians are adapted, and the elastic supporting component and the jacking component are matched with each other, so that the supporting effect on the arched doors is enhanced.

Drawings

In order to more clearly illustrate the detailed description of the utility model or the technical solutions in the prior art, the drawings that are needed in the detailed description of the utility model or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is an isometric view of the present invention;

FIG. 3 is an enlarged view of the utility model at A;

fig. 4 is an enlarged view of the present invention at B.

Reference numerals:

1-a bottom pillar; 2-sleeving a column; 3-a cross beam; 4-a support plate; 5-adjusting the rod;

11-a base; 12-a drive motor; 13-a first limiting plate; 21-a second limiting plate; 22-a first threaded rod; 31-a cylinder; 32-a jacking plate; 33-a slide block; 34-a slide hole; 41-groove; 42-a rubber block; 43-through slots; 44-a spring; 45-support block;

331-second threaded rod.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Referring to fig. 1-4, the tunnel arch supporting device for tunnel construction provided by this embodiment includes two lifting columns, the top ends of the two lifting columns are hinged to elastic supporting components, the two lifting columns are connected through a cross beam 3, a jacking component is fixedly installed in the middle area of the cross beam 3, adjusting components for adjusting the angles of the elastic supporting components are symmetrically arranged on two sides of the cross beam 3, one end of each angle adjusting component is hinged to the elastic supporting component, and the other end of each angle adjusting component is slidably connected to the cross beam 3.

In the in-service use, change the height of elastic support subassembly through the lift post to adapt to the not arch of co-altitude, change elastic support subassembly's support angle through adjusting part, with the arch of adapting to different radians, mutually supporting of elastic support subassembly and jacking subassembly is favorable to strengthening the support effect to the arch.

In this embodiment, the lift post includes sill pillar 1 and cover post 2, 2 covers of cover post are established on sill pillar 1 and with sill pillar 1 sliding connection, the top fixed mounting of sill pillar 1 has first limiting plate 13, the bottom fixed mounting of cover post 2 has second limiting plate 21, fixed mounting has driving motor 12 on the sill pillar 1, driving motor 12's output shaft passes first limiting plate 13 and rotates with first limiting plate 13 to be connected, threaded connection first threaded rod 22 on the second limiting plate 21, first threaded rod 22 and driving motor 12's output shaft coaxial coupling.

In practical use, the first threaded rod 22 is driven to rotate forwards or backwards through the forward rotation or the backward rotation of the driving motor 12, the first threaded rod 22 rotates forwards to push the second limiting plate 21 to ascend, so that the sleeve column 2 slides upwards relative to the bottom column 1, and the height of the lifting column is increased; the first threaded rod 22 rotates reversely to drive the second limiting plate 21 to descend, so that the sleeve column 2 slides downwards relative to the bottom column 1, and the height of the lifting column is reduced.

In this embodiment, the adjusting assembly includes an adjusting rod 5, one end of the adjusting rod 5 is hinged to the elastic supporting assembly, the other end of the adjusting rod 5 is hinged to a sliding block 33, the sliding block 33 is slidably connected to the cross beam 3, a second threaded rod 331 is connected to the sliding block 33 through a thread, and the bottom end of the second threaded rod 331 penetrates through a sliding hole 34 formed in the cross beam 3 and is connected to a nut through a thread.

In actual use, through adjusting the position of slider 33 on crossbeam 3, change the position of adjusting pole 5 to change the angle of elastic support subassembly, when the elastic support subassembly reached suitable position, cooperate through second threaded rod 331 and nut, fix the position of slider 33, thereby reach the effect of fixed elastic support subassembly.

In this embodiment, the elastic support component includes the backup pad 4, the middle zone of backup pad 4 is articulated with the sleeve column 2, the one end of backup pad 4 is articulated with adjusting pole 5, the upper surface of backup pad 4 is seted up flutedly 41, fixed mounting has block rubber 42 in the flutedly 41, a plurality of logical grooves 43 have been seted up on the block rubber 42, the bottom of flutedly 41 and the position fixed mounting who leads to the groove 43 to correspond have a spring 44, the top fixed mounting of spring 44 has supporting shoe 45, the size of supporting shoe 45 and the size looks adaptation of flutedly 41.

In actual use, the position of the adjusting rod 5 is changed by adjusting the position of the sliding block 33 on the cross beam 3, so that the angle of the supporting plate 4 is changed, and when the supporting plate 4 reaches a proper position, the position of the sliding block 33 is fixed by matching the second threaded rod 331 with the nut; when the elastic supporting component supports the tunnel arch, the surface of the supporting block 45 is contacted with the inner wall of the tunnel, and the rubber block 42 and the spring 44 in the groove 41 have elastic effect, so that the extrusion force applied to the supporting block 45 and the supporting plate 4 can be weakened.

In this embodiment, the jacking assembly comprises a cylinder 31, the cylinder 31 is fixedly mounted on the cross beam 3, and a jacking plate 32 is fixedly mounted on a driving end of the cylinder 31.

In practical use, the stroke-adjustable air cylinder 31 can be selected, so that the height of the jacking plate 32 can be conveniently adjusted according to the height of the tunnel, and the middle position of the tunnel arch can be supported.

In this embodiment, the lower extreme fixed mounting of foundation 1 has base 11, and the setting of base 11 is convenient for improve foundation 1 and places in-process stability.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. The utility model provides a tunnel arched door strutting arrangement for tunnel construction which characterized in that: including two lift posts, the top of two lift posts all articulates elastic support assembly, and two lift posts pass through crossbeam (3) and connect, and the middle zone fixed mounting of crossbeam (3) has the jacking subassembly, and the bilateral symmetry of crossbeam (3) is provided with the adjusting part who is used for adjusting the elastic support assembly angle, and angle adjusting part's one end is articulated with elastic support assembly, and angle adjusting part's the other end and crossbeam (3) sliding connection.

2. A tunnel arch supporting apparatus for tunnel construction as claimed in claim 1, wherein: the lifting column comprises a bottom column (1) and a sleeve column (2), the sleeve column (2) is sleeved on the bottom column (1) and is in sliding connection with the bottom column (1), a first limiting plate (13) is fixedly mounted on the top end of the bottom column (1), a second limiting plate (21) is fixedly mounted at the bottom end of the sleeve column (2), a driving motor (12) is fixedly mounted on the bottom column (1), an output shaft of the driving motor (12) penetrates through the first limiting plate (13) and is rotatably connected with the first limiting plate (13), a first threaded rod (22) is connected with the second limiting plate (21) in a threaded mode, and the first threaded rod (22) is coaxially connected with an output shaft of the driving motor (12).

3. A tunnel arch supporting apparatus for tunnel construction as claimed in claim 2, wherein: the adjusting part comprises an adjusting rod (5), one end of the adjusting rod (5) is hinged to the elastic supporting component, the other end of the adjusting rod (5) is hinged to a sliding block (33), the sliding block (33) is connected with the cross beam (3) in a sliding mode, a second threaded rod (331) is connected to the sliding block (33) in a threaded mode, and the bottom end of the second threaded rod (331) penetrates through a sliding hole (34) formed in the cross beam (3) and is connected with a nut in a threaded mode.

4. A tunnel arch supporting apparatus for tunnel construction as claimed in claim 3, wherein: the elastic support component comprises a support plate (4), the middle area of the support plate (4) is hinged to the sleeve column (2), one end of the support plate (4) is hinged to the adjusting rod (5), a groove (41) is formed in the upper surface of the support plate (4), a rubber block (42) is fixedly mounted in the groove (41), a plurality of through grooves (43) are formed in the rubber block (42), a spring (44) is fixedly mounted at the bottom of the groove (41) and in a position corresponding to the through groove (43), a support block (45) is fixedly mounted at the top end of the spring (44), and the size of the support block (45) is matched with the size of the groove (41).

5. A tunnel arch supporting apparatus for tunnel construction as claimed in claim 1, wherein: the jacking assembly comprises a cylinder (31), the cylinder (31) is fixedly installed on the cross beam (3), and a jacking plate (32) is fixedly installed on the driving end of the cylinder (31).

6. The tunnel arch supporting apparatus for tunnel construction as claimed in claim 2, wherein: the lower end of the bottom column (1) is fixedly provided with a base (11).