CN221144489U

CN221144489U - Tunnel construction support

Info

Publication number: CN221144489U
Application number: CN202323021915.4U
Authority: CN
Inventors: 刘勇; 邹毅; 刘春莲; 孙政; 余小曲
Original assignee: Sichuan Chengye Construction Engineering Co ltd
Current assignee: Sichuan Chengye Construction Engineering Co ltd
Priority date: 2023-11-09
Filing date: 2023-11-09
Publication date: 2024-06-14
Anticipated expiration: 2033-11-09

Abstract

The utility model relates to a tunnel construction support, which comprises a back-shaped base, wherein a top plate is arranged above the back-shaped base, an arc-shaped plate is arranged at the top of the top plate, an adjusting mechanism is arranged between the top plate and the back-shaped base, and a supporting mechanism is arranged at the bottom of the top plate; the adjusting mechanism comprises a screw rod, chain wheels, chains, lifting rods, driven gears, motors and driving gears, the screw rod is rotatably installed at four corners inside the back-shaped base, the chain wheels are fixedly installed on the outer surfaces of the screw rod, the chains are installed between the outer surfaces of the chain wheels in a transmission mode, and the lifting rods are in threaded connection with the outer surfaces of the screw rod. This tunnel construction support through setting up adjustment mechanism, can drive four lead screws simultaneously and rotate to make four lifter reciprocate simultaneously, adjust the arc to suitable height, high regulation convenient operation, labour saving and time saving provides convenience for staff's use.

Description

Tunnel construction support

Technical Field

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

Background

Tunnels are engineering structures buried in an underground space, and are a form of human use, and in the tunnel construction process, supports are generally used for supporting.

Through searching, for example, chinese patent No. CN215292556U discloses an urban tunnel construction support, which comprises two hydraulic lifters, a supporting beam is arranged at the output ends of the hydraulic lifters, buffer springs are uniformly arranged at the top ends of the supporting beam, first abutting plates are fixedly connected at the top ends of the buffer springs, telescopic beams are inserted and arranged between the upper sides of the symmetrical supporting beams, adjusting columns are symmetrically arranged on the side walls of the supporting beams, a bidirectional screw rod is connected between the adjusting columns in a threaded manner, an adjusting block is fixedly connected in the middle of the bidirectional screw rod, a rotating sleeve is sleeved on a vertical rod of the supporting beam, an LED illuminating lamp is arranged on the outer side of the rotating sleeve, fastening bolts are arranged on the side walls of the rotating sleeve in a threaded manner, and a second abutting plate is fixedly connected on the outer side walls of the supporting beam.

When the device is adjusted to the height required by supporting the tunnel, four supporting rods are required to be respectively and sequentially adjusted and fixed by four bolts, the four supporting rods cannot be simultaneously adjusted to the uniform height by the adjusting method, and when the ground is supported by the four abutting plates, the device is also required to be respectively adjusted, the operation is troublesome, and the construction progress is influenced, so that the tunnel construction support is provided to solve the problems.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a tunnel construction support convenient to adjust.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the tunnel construction support comprises a back-shaped base, a top plate is arranged above the back-shaped base, an arc-shaped plate is arranged at the top of the top plate, an adjusting mechanism is arranged between the top plate and the back-shaped base, and a supporting mechanism is arranged at the bottom of the top plate;

The adjusting mechanism comprises a screw rod, chain wheels, chains, lifting rods, driven gears, motors and driving gears, the screw rod is installed at four corners inside the back-shaped base in a rotating mode, the chain wheels are fixedly installed on the outer surfaces of the screw rod, the chains are installed between the outer surfaces of the chain wheels in a transmission mode, the lifting rods are connected with the outer surfaces of the screw rod in a threaded mode, the driven gears are fixedly installed on the outer surfaces of the screw rod, the motors are fixedly installed inside the back-shaped base, and the driving gears are fixedly installed on the output shafts of the motors.

Further, four the top of lifter all with the bottom fixed connection of roof, four corners at the top of back font base all have seted up the round hole that is located the lead screw surface, four the one end of lead screw all runs through the round hole and extends to the inside of lifter.

Further, the driving gear is meshed with the driven gear, and the driven gear and the driving gear are both positioned in the inverted-U-shaped base.

Further, supporting mechanism includes the hydraulic lifting rod of fixed mounting in the middle of roof bottom, four equal fixed mounting of bottom four corners of roof have the telescopic link, four the telescopic link with the equal fixed mounting of flexible end of hydraulic lifting rod has the locating plate.

Further, the locating plate is located at the inner side of the back-shaped base, and convex teeth are equidistantly arranged at the bottom of the locating plate.

Further, the power supply box is fixedly installed on the side wall of the back-shaped base, the power supply box is electrically connected with the motor and the hydraulic lifting rod, and universal wheels are arranged at four corners of the bottom of the back-shaped base.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. This tunnel construction support through setting up adjustment mechanism, can drive four lead screws simultaneously and rotate to make four lifter reciprocate simultaneously, adjust the arc to suitable height, high regulation convenient operation, labour saving and time saving provides convenience for staff's use.

2. This tunnel construction support through setting up supporting mechanism, under the effect of hydraulic lifting rod, makes the locating plate downwardly moving that can be quick support through latch and ground contact, through setting up four telescopic links, has improved the stability of supporting, through setting up the universal wheel, has made things convenient for the device's position to remove.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a top cross-sectional view of the inverted-U-shaped base of the present utility model;

FIG. 3 is an enlarged view of the structure of FIG. 2A in accordance with the present utility model;

fig. 4 is a schematic structural view of the supporting mechanism of the present utility model.

In the figure: 1. a U-shaped base; 2. a top plate; 3. an arc-shaped plate; 4. an adjusting mechanism; 401. a screw rod; 402. a sprocket; 403. a chain; 404. a lifting rod; 405. a driven gear; 406. a motor; 407. a drive gear; 5. a support mechanism; 501. a hydraulic lifting rod; 502. a telescopic rod; 503. and (5) positioning the plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, a tunnel construction support in this embodiment includes a square-shaped base 1, a top plate 2 is disposed above the square-shaped base 1, an arc plate 3 is disposed at the top of the top plate 2, an adjusting mechanism 4 is disposed between the top plate 2 and the square-shaped base 1, and a supporting mechanism 5 is disposed at the bottom of the top plate 2.

The adjusting mechanism 4 comprises screw rods 401, chain wheels 402, chains 403, lifting rods 404, driven gears 405, motors 406 and driving gears 407, the screw rods 401 are rotatably installed at four corners inside the square-shaped base 1, the chain wheels 402 are fixedly installed on the outer surfaces of the four screw rods 401, the chains 403 are installed between the outer surfaces of the four chain wheels 402 in a transmission mode, the lifting rods 404 are connected with the outer surfaces of the four screw rods 401 in a threaded mode, the driven gears 405 are fixedly installed on the outer surfaces of one screw rod 401, the motors 406 are fixedly installed inside the square-shaped base 1, and the driving gears 407 are fixedly installed at the output shafts of the motors 406.

The driven gear 405 is meshed with the driving gear 407, and the chains 403 are arranged on the outer surfaces of the four chain wheels 402 in a transmission way, so that under the starting of the motor 406, the four screw rods 401 can be driven to rotate simultaneously, and because the four lifting rods 404 are in threaded connection with the screw rods 401, under the rotation of the four screw rods 401, the four lifting rods 404 can be driven to move up and down simultaneously, thereby achieving the purpose of adjusting the height of the arc plate 3.

The supporting mechanism 5 comprises a hydraulic lifting rod 501 fixedly installed in the middle of the bottom of the top plate 2, telescopic rods 502 are fixedly installed at four corners of the bottom of the top plate 2, positioning plates 503 are fixedly installed at telescopic ends of the four telescopic rods 502 and the hydraulic lifting rod 501, protruding teeth are installed at the bottom of the positioning plates 503 in an equidistant mode, the positioning plates 503 are driven to descend through the hydraulic lifting rod 501, the positioning plates 503 can be supported, supporting grabbing force is increased under the action of the protruding teeth, supporting effect is improved, and supporting stability is enhanced through the four telescopic rods 502.

The universal wheels are arranged at the four corners of the bottom of the U-shaped base 1, and the device is convenient to move to a tunnel needing construction by arranging the universal wheels.

The power supply box is fixedly installed on the side wall of the U-shaped base 1, and power supply equipment is arranged in the power supply box to supply electric quantity to the motor 406 and the hydraulic lifting rod 501.

In practice, the method is carried out according to the following steps:

1) Firstly, the device is moved to a place where a tunnel needs to be supported through a universal wheel;

2) Then, a motor 406 is started through an external controller, the motor 406 drives a driving gear 407 to rotate, the driving gear 407 drives a driven gear 405 to rotate, the driven gear 405 drives a screw rod 401 connected with the driven gear 405 to rotate, and the screw rod 401 drives a sprocket 402 on the outer surface of the screw rod to rotate;

3) Under the transmission cooperation of the chain wheel 402 and the chain 403, the other three screw rods 401 are driven to rotate, and under the rotation of the four screw rods 401, the four lifting rods 404 are driven to move upwards on the outer surface of the screw rods 401 until the arc-shaped plate 3 is adjusted to a proper height;

4) Finally, the positioning plate 503 is driven to descend by the hydraulic lifting rod 501, and the positioning plate 503 is supported by contact of convex teeth on the positioning plate 503 with the ground.

To sum up, this tunnel construction support through setting up adjustment mechanism 4, can drive four lead screws 401 simultaneously and rotate to make four lifter 404 reciprocate simultaneously, adjust arc 3 to suitable height, high regulation convenient operation, labour saving and time saving provides convenience for staff's use.

Further, through setting up supporting mechanism 5, under the effect of hydraulic lifting rod 501, make locating plate 503 move downwards fast and support through latch and ground contact, through setting up four telescopic links 502, improved the stability of supporting, through setting up the universal wheel, made things convenient for the device's position to remove.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tunnel construction support, includes back font base (1), its characterized in that: a top plate (2) is arranged above the back-shaped base (1), an arc-shaped plate (3) is arranged at the top of the top plate (2), an adjusting mechanism (4) is arranged between the top plate (2) and the back-shaped base (1), and a supporting mechanism (5) is arranged at the bottom of the top plate (2);

The utility model provides an adjustable mechanism (4) including lead screw (401), sprocket (402), chain (403), lifter (404), driven gear (405), motor (406) and driving gear (407), four inside four corners of back font base (1) are all rotated and are installed lead screw (401), four the surface of lead screw (401) is all fixed mounting has sprocket (402), four the transmission is installed between the surface of sprocket (402) has chain (403), four the equal threaded connection of surface of lead screw (401) has lifter (404), one the surface fixed mounting of lead screw (401) has driven gear (405), the inside fixed mounting of back font base (1) has motor (406), the output shaft department fixed mounting of motor (406) has driving gear (407).

2. A tunnel construction support according to claim 1, wherein: the top of four lifter (404) all with the bottom fixed connection of roof (2), four corners at the top of back font base (1) all have seted up the round hole that is located lead screw (401) surface, four the one end of lead screw (401) all runs through the round hole and extends to the inside of lifter (404).

3. A tunnel construction support according to claim 1, wherein: the driving gear (407) is meshed with the driven gear (405), and the driven gear (405) and the driving gear (407) are both positioned in the inverted-U-shaped base (1).

4. A tunnel construction support according to claim 1, wherein: the supporting mechanism (5) comprises a hydraulic lifting rod (501) fixedly installed in the middle of the bottom of the top plate (2), telescopic rods (502) are fixedly installed at four corners of the bottom of the top plate (2), and positioning plates (503) are fixedly installed at telescopic ends of the four telescopic rods (502) and the hydraulic lifting rod (501).

5. The tunnel construction support according to claim 4, wherein: the locating plate (503) is located on the inner side of the square-shaped base (1), and convex teeth are equidistantly arranged at the bottom of the locating plate (503).

6. A tunnel construction support according to claim 1, wherein: the power supply box is fixedly mounted on the side wall of the back-shaped base (1), the power supply box is electrically connected with the motor (406) and the hydraulic lifting rod (501), and universal wheels are arranged at four corners of the bottom of the back-shaped base (1).