CN220226936U - Temporary construction supporting structure for shallow buried large-section tunnel of weak surrounding rock - Google Patents

Abstract

The utility model relates to the field of tunnel construction, in particular to a temporary construction supporting structure of a shallow buried large-section tunnel of weak surrounding rock. The temporary construction supporting structure of the shallow large-section tunnel of burying of weak surrounding rock comprises a functional box, an anti-blocking assembly and a mud removing assembly, wherein a sealing cover is arranged at the top of a track, one end, close to a pressing plate, of the top of the sealing cover is provided with a mounting rod in rotary connection through a frame body, and the mounting rod is provided with a bristle brush. According to the temporary construction supporting structure for the shallow buried large-section tunnel with the weak surrounding rock, when the rack plate is contracted towards the inside of the track, the fixed motor is started, the installation rod is used for driving the bristle brush to rotate, soil in tooth grooves on the rack plate can be cleaned in the process of rotating the bristle brush, and the problem that the meshing effect between the tooth grooves of the rack plate and the gear is poor and the gear cannot be normally driven to move due to the fact that soil is easily accumulated in the tooth grooves of the rack plate is avoided.

Description

Temporary construction supporting structure for shallow buried large-section tunnel of weak surrounding rock

Technical Field

The utility model relates to the field of tunnel construction, in particular to a temporary construction supporting structure of a shallow buried large-section tunnel of weak surrounding rock.

Background

The tunnel is an engineering building embedded in the underground space, is a form of utilizing underground space by human beings, and the shallow-buried large-section tunnel construction of weak surrounding rock is one of main types in the construction engineering of highway tunnels;

in the construction process of the shallow-buried large-section tunnel with the weak surrounding rock, a supporting structure is needed to support the tunnel face of the tunnel, so that the safety in the construction process is improved, and meanwhile, the tunnel is conveniently excavated more stably;

according to the prior Chinese patent document application publication number of CN217055220U, the construction supporting structure of the shallow buried large-section tunnel of the complex weak surrounding rock can be known by the description content:

the tooth plate is used as a transmission structure to drive the push plate to move, the push plate is matched with the limiting rod to support the face, and due to the fact that more soil is in the tunnel, when the tooth groove meshing transmission structure is used, certain soil is easily accumulated in the tooth groove on the tooth plate, so that the meshing effect between the tooth plate and the gear is poor, and the gear cannot normally drive the tooth plate to move.

Therefore, it is necessary to provide a new temporary construction supporting structure for a shallow buried large-section tunnel of weak surrounding rock to solve the technical problems.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a temporary construction supporting structure for a shallow-buried large-section tunnel of a weak surrounding rock.

The temporary construction supporting structure of the shallow buried large-section tunnel of the weak surrounding rock provided by the utility model comprises the following components:

the multifunctional box is provided with two fixedly connected rails, rack plates which are in sliding connection are arranged on the rails, and a pressing plate which is fixedly connected is arranged at one end of each rack plate;

the anti-blocking assembly is positioned on the track and comprises a sealing cover, a mounting rod and a bristle brush, wherein the sealing cover is arranged at the top of the track, the mounting rod which is rotationally connected is arranged at one end, close to the pressing plate, of the top of the sealing cover through a frame body, and the bristle brush is arranged on the mounting rod;

the mud removing assembly is located on the pressing plate.

Preferably, the mud removing assembly comprises springs, limiting plates and limiting holes, wherein the springs are fixedly connected to four corners of one side of the pressing plate, the limiting plates are fixedly connected to the other ends of the springs, and a plurality of limiting holes are formed in the limiting plates.

Preferably, the top of rack board all is equipped with a plurality of tooth's socket, all install the gag lever post of a plurality of fixed connection on the clamp plate, and the gag lever post all is located each spacing downthehole.

Preferably, two fixed connection's mount are installed on the functional box, and install the transmission shaft of swivelling joint between the one end of mount, fixed connection's drive gear is all installed at the both ends of transmission shaft, and drive gear all meshes with the tooth's socket on the homonymy rack board each other.

Preferably, a driving gear A which is fixedly connected is installed on the transmission shaft, a driving gear B which is rotationally connected is installed between the fixing frames, a chain is arranged between the driving gear A and the driving gear B, a rotating motor which is fixedly connected is installed on the fixing frame on any side of the functional box, and the output end of the rotating motor is fixedly butted with the rotating shaft of the driving gear B.

Preferably, the anti-blocking assembly further comprises a fixed motor, the top of the sealing cover is provided with the fixed motor which is fixedly connected through the frame body, and the output end of the fixed motor is fixedly butted with one end of the mounting rod.

Preferably, the function box is provided with a sealing door which is connected in a rotating way, and the sealing door is provided with a heat dissipation hole and a handle.

Compared with the related art, the temporary construction supporting structure for the shallow-buried large-section tunnel of the weak surrounding rock has the following beneficial effects:

1. when the rack plate is contracted towards the track, the fixed motor is started to drive the bristle brush to rotate by the mounting rod, and in the process of the bristle brush rotating, soil in tooth sockets on the rack plate can be cleaned, after the cleaned rack plate is retracted into the track, the rack plate is covered by the sealing cover at the moment, so that the external soil is prevented from entering the tooth sockets, the problem that soil is easily accumulated in the tooth sockets of the rack plate, the meshing effect between the tooth sockets of the rack plate and the gear is poor, and the gear cannot normally drive the rack plate to move is avoided.

2. When the support is carried out on the face, the limiting rod is inserted into the rock soil of the face, the limiting plate is attached to the soil surface at the moment, then the pressing plate is pressed close to the soil layer continuously, the limiting plate is pressed and the spring is pressed to shrink the limiting plate, after the limiting rod is pulled out of the rock soil of the face, the spring rebounds at the moment to drive the limiting plate to return to the original position, in the process, the limiting plate scrapes the surface of the limiting rod by utilizing the inner wall of the limiting hole, the rock soil attached to the limiting rod is cleaned, the problem that a certain amount of rock soil is easily attached to the limiting rod after the support is used, and the influence on subsequent support work is caused is avoided, and the cleaning effect of the support device on the limiting rod is effectively improved.

Drawings

FIG. 1 is a schematic structural view of a preferred embodiment of a temporary construction supporting structure for a shallow buried large section tunnel with weak surrounding rock provided by the utility model;

FIG. 2 is a schematic view of the structure of the fixing frame and its components shown in FIG. 1;

FIG. 3 is a schematic view of the anti-blocking assembly of FIG. 1;

FIG. 4 is a schematic view of the mounting structure of the track and rack plate shown in FIG. 3;

fig. 5 is a schematic view of the mud removing assembly shown in fig. 1.

Reference numerals in the drawings: 1. a functional box; 11. a track; 12. sealing the door; 2. rack plate; 21. a pressing plate; 22. tooth slots; 23. a limit rod; 3. an anti-seize assembly; 31. a sealing cover; 32. a mounting rod; 33. a bristle brush; 34. fixing a motor; 4. a mud removal assembly; 41. a spring; 42. a limiting plate; 43. a limiting hole; 5. a fixing frame; 51. a transmission shaft; 52. a transmission gear; 53. a driving gear A; 54. a driving gear B; 55. a chain; 56. a rotating electric machine.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Specific implementations of the utility model are described in detail below in connection with specific embodiments.

Referring to fig. 1 to 5, the temporary construction support structure for a shallow-buried large-section tunnel with weak surrounding rock provided by the embodiment of the utility model includes: a functional box 1, an anti-blocking component 3 and a mud removing component 4.

In the embodiment of the present utility model, referring to fig. 1, 3 and 4, two fixedly connected rails 11 are installed on the functional box 1, a sealing door 12 connected in a rotating manner is installed on the functional box 1, and a heat dissipation hole and a handle are provided on the sealing door 12;

the rack plate 2 of sliding connection is all installed on the track 11, fixed connection's clamp plate 21 is all installed to the one end of rack plate 2, the top of rack plate 2 all is equipped with a plurality of tooth's socket 22, all install a plurality of fixed connection's gag lever post 23 on the clamp plate 21, and gag lever post 23 all is located each spacing hole 43.

It should be noted that: the power supply and the control device are arranged in the functional box 1, so that the electric quantity of all electric appliances on the device can be ensured to maintain the operation of the electric appliances, meanwhile, the electric appliances on the device can be controlled through the control device in the functional box 1, after the sealing door 12 is opened, equipment in the functional box 1 can be overhauled, meanwhile, the balancing weight is arranged in the functional box 1, the dead weight of the functional box 1 can be increased, the stability of the device in supporting work is improved, and the track 11 can enable the rack plate 2 to be more stable in moving;

also to be described is: tooth grooves 22 through the tops of tooth plates 2 are meshed with a transmission gear 52, the tooth plates 2 and a pressing plate 21 can be driven to move in the rotation process of the transmission gear 52, the tooth plates 2 are driven to stretch out of a track 11 by the aid of the transmission gear 52 which rotates when support work is carried out, the pressing plate 21 moves along with the tooth plates 2, a limiting rod 23 can be inserted into rock soil along with the fact that the pressing plate 21 is continuously close to the surface of a face, after the limiting rod 23 is inserted into a specified distance, movement of the tooth plates 2 is stopped, at the moment, the pressing plate 21 is used for limiting, and the face can be supported by means of cooperation of the limiting rod 23 and the limiting plate 42.

In the embodiment of the present utility model, referring to fig. 1 and 3, the anti-blocking component 3 is located on the track 11, and the anti-blocking component 3 includes a seal cover 31, a mounting rod 32 and a bristle brush 33, the top of the track 11 is provided with the seal cover 31, one end of the top of the seal cover 31, which is close to the pressing plate 21, is provided with the mounting rod 32 in a rotating connection manner, the mounting rod 32 is provided with the bristle brush 33, the anti-blocking component 3 further includes a fixed motor 34, the top of the seal cover 31 is provided with the fixed motor 34 in a fixed connection manner through the frame, and the output end of the fixed motor 34 is fixedly abutted with one end of the mounting rod 32.

It should be noted that: when the rack plate 2 is contracted after the supporting work is finished, the fixed motor 34 is opened, the fixed motor is driven to rotate by the bristle brush 33 through the mounting rod 32, at the moment, in the contracting process of the rack plate 2, the tooth grooves 22 on the rack plate 2 are continuously cleaned by the bristle brush 33, soil in the tooth grooves 22 is cleaned, after the cleaned rack plate 2 is completely contracted back into the track 11, at the moment, the sealing cover 31 covers the rack plate 2, and external soil is prevented from entering the tooth grooves 22 of the rack plate 2.

In the embodiment of the present utility model, referring to fig. 1, 3 and 5, the mud removing assembly 4 is located on the pressing plate 21, the mud removing assembly 4 includes springs 41, limiting plates 42 and limiting holes 43, the springs 41 fixedly connected are installed at four corners of one side of the pressing plate 21, the limiting plates 42 fixedly connected are installed between the other ends of the springs 41, and a plurality of limiting holes 43 are provided on the limiting plates 42.

It should be noted that: when the face is supported, when one end of the limiting rod 23 is inserted into the rock soil of the face, the limiting plate 42 is attached to the soil surface, then the pressing plate 21 is continuously attached to the soil layer, the limiting rod 23 stretches into the rock soil, the limiting plate 42 is extruded and is contracted, the spring 41 is contracted, after the limiting rod 23 is pulled out of the rock soil of the face, the spring 41 rebounds to drive the limiting plate 42 to return to the original position, and in the process, the limiting plate 42 scrapes the surface of the limiting rod 23 by utilizing the inner wall of the limiting hole 43 to clean the rock soil attached to the limiting rod 23.

In the embodiment of the present utility model, referring to fig. 1 and 2, two fixing frames 5 are fixedly connected to the functional box 1, a transmission shaft 51 is rotatably connected between one ends of the fixing frames 5, two ends of the transmission shaft 51 are respectively provided with a transmission gear 52 fixedly connected to each other, the transmission gears 52 are respectively meshed with the tooth grooves 22 on the rack plate 2 on the same side, a driving gear a53 is fixedly connected to the transmission shaft 51, a driving gear B54 is rotatably connected to the fixing frames 5, a chain 55 is arranged between the driving gear a53 and the driving gear B54, a rotating motor 56 is fixedly connected to the fixing frame 5 on any side of the functional box 1, and an output end of the rotating motor 56 is fixedly abutted to a rotating shaft of the driving gear B54.

It should be noted that: the rotating motor 56 is turned on to drive the driving gear B54 to rotate, the rotating driving gear B54 drives the driving gear A53 to rotate by using the chain 55, the driving gear A53 drives the driving gear 52 to rotate by using the transmission shaft 51, and at the moment, due to the meshing of the tooth grooves 22 of the driving gear 52, the rack plate 2 can be driven to move along the track 11 by using the rotating driving gear 52, so that the pressing plate 21 is driven to move by using the rack plate 2, and the moving direction of the rack plate 2 can be changed by changing the steering direction of the rotating motor 56, so that the extending or retracting operation is completed.

The working principle of the temporary construction supporting structure of the shallow buried large-section tunnel of the weak surrounding rock provided by the utility model is as follows:

firstly, the device is moved into a tunnel, the pressing plate 21 is aligned with the face in the tunnel, then a rotating motor 56 is turned on to drive a driving gear B54 to rotate, the rotating driving gear B54 drives a driving gear A53 to rotate by a chain 55, the driving gear A53 drives a transmission gear 52 to rotate by a transmission shaft 51, at the moment, due to the meshing of tooth grooves 22 of the transmission gear 52, the toothed plate 2 can be driven to move along the track 11 by the rotating transmission gear 52, the pressing plate 21 is driven to move by the toothed plate 2, the pressing plate 21 is continuously close to the face, the limiting rod 23 is inserted into the rock soil along with the fact that the pressing plate 21 is continuously close to the surface of the face, at the moment, when one end of the limiting rod 23 is inserted into the rock soil of the face, the limiting plate 42 is attached to the surface of the soil, then the limiting rod 23 is inserted into the rock soil along with the fact that the pressing plate 21 is continuously close to the soil layer, the limiting plate 42 is extruded and extrudes the spring 41 to enable the spring 41 to shrink, after the limiting rod 23 is inserted into a specified distance, the rack plate 2 is stopped from moving, at the moment, limiting is carried out by the pressing plate 21, and the face can be supported by the aid of the fact that the limiting rod 23 is matched with the limiting plate 42;

when the supporting work is finished, the rotary motor 56 is controlled to rotate reversely, so that the pressing plate 21 is retracted into the track 11, meanwhile, the pressing plate 21 moves along with the track 11, when the limiting rod 23 is pulled out of the rock soil of the face, the spring 41 rebounds at the moment, the limiting plate 42 is driven to return to the original position, and in the process, the limiting plate 42 scrapes the surface of the limiting rod 23 by utilizing the inner wall of the limiting hole 43, so that the rock soil attached to the limiting rod 23 is cleaned;

meanwhile, when the rack plate 2 is contracted, the fixed motor 34 is turned on, the bristle brush 33 is driven to rotate by the mounting rod 32, at the moment, in the contraction process of the rack plate 2, the tooth grooves 22 on the rack plate 2 are continuously cleaned by the bristle brush 33, soil in the tooth grooves 22 is cleaned, after the cleaned rack plate 2 is completely contracted back into the track 11, at the moment, the rack plate 2 is covered by the sealing cover 31, and external soil is prevented from entering the tooth grooves 22 of the rack plate 2.

The circuits and control involved in the present utility model are all of the prior art, and are not described in detail herein.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (7)

1. The utility model provides a weak country rock shallow large section tunnel temporary construction supporting construction which characterized in that includes:

the multifunctional intelligent control device comprises a functional box (1), wherein two fixedly connected rails (11) are arranged on the functional box (1), rack plates (2) which are in sliding connection are arranged on the rails (11), and pressing plates (21) which are fixedly connected are arranged at one ends of the rack plates (2);

the anti-blocking assembly (3), the anti-blocking assembly (3) is located on the track (11), the anti-blocking assembly (3) comprises a sealing cover (31), a mounting rod (32) and a bristle brush (33), the sealing cover (31) is arranged at the top of the track (11), the mounting rod (32) which is connected in a rotating mode is arranged at one end, close to the pressing plate (21), of the top of the sealing cover (31) through a frame body, and the bristle brush (33) is arranged on the mounting rod (32);

the mud removing assembly (4), the mud removing assembly (4) is located on the pressing plate (21).

2. The temporary construction support structure for the shallow-buried large-section tunnel of the weak surrounding rock according to claim 1, wherein the mud removing assembly (4) comprises springs (41), limiting plates (42) and limiting holes (43), the springs (41) which are fixedly connected are installed at four corners of one side of the pressing plate (21), the limiting plates (42) which are fixedly connected are installed between the other ends of the springs (41), and a plurality of limiting holes (43) are formed in the limiting plates (42).

3. The temporary construction support structure for the shallow-buried large-section tunnel of the weak surrounding rock according to claim 2, wherein a plurality of tooth grooves (22) are formed in the top of the rack plate (2), a plurality of fixedly connected limiting rods (23) are arranged on the pressing plate (21), and the limiting rods (23) are located in the limiting holes (43).

4. A temporary construction supporting structure for a shallow-buried large-section tunnel of a weak surrounding rock according to claim 3, wherein two fixing frames (5) which are fixedly connected are installed on the functional box (1), a transmission shaft (51) which is rotatably connected is installed between one ends of the fixing frames (5), transmission gears (52) which are fixedly connected are installed at two ends of the transmission shaft (51), and the transmission gears (52) are meshed with tooth grooves (22) on the rack plate (2) on the same side.

5. The temporary construction support structure for the shallow-buried large-section tunnel of the weak surrounding rock according to claim 4, wherein a driving gear A (53) which is fixedly connected is installed on the transmission shaft (51), a driving gear B (54) which is rotationally connected is installed between the fixing frames (5), a chain (55) is arranged between the driving gear A (53) and the driving gear B (54), a rotating motor (56) which is fixedly connected is installed on the fixing frame (5) on any side of the functional box (1), and the output end of the rotating motor (56) is fixedly connected with a rotating shaft of the driving gear B (54).

6. The temporary construction support structure for the shallow-buried large-section tunnel of the weak surrounding rock according to claim 1, wherein the anti-blocking assembly (3) further comprises a fixed motor (34), the top of the sealing cover (31) is provided with the fixed motor (34) which is fixedly connected through a frame body, and the output end of the fixed motor (34) is fixedly butted with one end of the installation rod (32).

7. The temporary construction support structure for the shallow-buried large-section tunnel of the weak surrounding rock according to claim 1, wherein the functional box (1) is provided with a sealing door (12) which is connected in a rotating way, and the sealing door (12) is provided with a heat dissipation hole and a handle.