Highway tunnel construction support

Abstract

The invention relates to a highway tunnel construction support, and belongs to the technical field of tunnel construction equipment, the highway tunnel construction support comprises a hollow cross beam and a vertical beam, the vertical beam is vertically and equally arranged at the bottom of the cross beam, the highway tunnel construction support further comprises a lifting air cylinder, two push rod sets and a control assembly, and the lifting air cylinder is connected with the vertical beam and controls the vertical beam to do lifting motion; the two push rod sets are symmetrically arranged on the two sides in the vertical beam correspondingly. The control assembly is arranged in the cross beam and is in communication connection with the lifting air cylinder, the control assembly is driven to work through back-and-forth movement of the push rod set, and the problem that a switch controlled by the height lifting structure is manually touched by mistake, so that the height lifting structure is driven to move in advance when the length telescopic structure does not end work is solved; and the tunnel construction effect is influenced.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel construction equipment, and in particular relates to a highway tunnel construction support. Background Art

[0002] Generally speaking, in the process of building highway tunnels, in order to prevent deformation or collapse of the surrounding rock, tunnel supports are usually required. The setting of tunnel supports plays a vital role in ensuring the safety and quality of tunnel construction; and tunnel supports usually require the auxiliary installation of tunnel construction brackets.

[0003] For example, the invention patent with patent application publication number: CN111379579A includes a crossbeam, support beams are arranged at both ends of the crossbeam, support plates are arranged at the ends of the support beams on both sides away from the crossbeam, and multiple support members are evenly arranged on the surface of the crossbeam facing the inner wall of the tunnel, each support member includes a connecting plate, an abutment plate is arranged on the connecting plate, each abutment plate is arranged in an arc shape, and a first driving member for driving the abutment plate to approach or move away from the tunnel top wall is arranged on the connecting plate, a sliding groove is opened on the surface of the crossbeam facing the tunnel top wall, and a slider slidably connected to the sliding groove is arranged on the connecting plate. The arrangement of multiple abutment plates can make the curvature of each abutment plate smaller, so that multiple abutment plates can be suitable for tunnel top walls with different curvatures; the first driving member can drive the abutment plate to move toward the tunnel top wall, so that the abutment plate can be suitable for tunnel top walls of different heights, thereby improving the applicability of the entire tunnel construction support.

[0004] Based on the search of the publication number of the above patent application and the shortcomings found therein: Existing tunnel construction supports all have a height lifting structure and a length telescopic structure. During the construction process, the length telescopic structure needs to be manually controlled to work. After the length telescopic structure completes its work, the height lifting structure is manually controlled to work again. This control method has the problem that the switch controlled by the height lifting structure may be accidentally touched by the operator, causing the height lifting structure to move in advance before the length telescopic structure finishes its work, thereby affecting the effect of tunnel construction. Summary of the invention

[0005] In order to solve the problem that the switch controlled by the height lifting structure is accidentally touched by humans, causing the length telescopic structure to drive the height lifting structure to move in advance before the work is completed, thereby affecting the effect of tunnel construction, the present invention provides a highway tunnel construction support.

[0006] The purpose of the present invention can be achieved through the following technical solutions: A highway tunnel construction support, including a hollow cross beam and a vertical beam, wherein the vertical beam is vertically and equally disposed at the bottom of the cross beam, and further comprising a lifting cylinder, two push rod groups and a control component, wherein the lifting cylinder is connected to the vertical beam to control the vertical beam to perform lifting movement, and the two push rod groups are symmetrically disposed on both sides of the vertical beam; the control component is disposed in the cross beam, and the control component is communicatively connected with the lifting cylinder, and the control component is controlled to operate the lifting cylinder through the back and forth movement of the push rod group.

[0007] As a preferred technical solution of the present invention, the push rod group includes a plurality of push rod cylinders, which are arranged on the side walls of the vertical beam at equal intervals along the axial direction of the vertical beam. The push rod cylinders are arranged in the vertical beam, and their output ends extend out of the vertical beam. The output direction of the push rod cylinders is parallel to the axial direction of the horizontal beam.

[0008] As a preferred technical solution of the present invention, the push rod group also includes an abutment block, which is arranged on the output end of the topmost push rod cylinder. The control component also includes a control module and a control housing. The cross-sectional shape of the control housing is a rectangle with an opening facing downward. The control housing is slidably arranged in the cross beam along the axial direction of the cross beam. The control module is arranged on the side wall of the control housing close to the vertical beam. The top end of the abutment block extends into the control housing. The abutment block can lock or release its abutment relationship with the inner side wall of the control housing. The control module is communicatively connected to the lifting cylinder.

[0009] As a preferred technical solution of the present invention, when the push rod cylinder is extended to a specified length, the abutment block abuts against the side wall surface in the control housing away from the control module, and the side wall surface in the control housing where the control module is provided is in the same plane as the side wall surface abutting against the control housing when the abutment block is reset.

[0010] As a preferred technical solution of the present invention, it also includes two groups of lifting rod groups, which are symmetrically arranged at the two ends of the top of the beam; the lifting rod group includes a fixed lifting rod and a plurality of sliding lifting rods, the fixed lifting rod is arranged at the top of the beam, and the plurality of sliding lifting rods are arranged at equal intervals on the top of the beam along the axial direction of the beam, and the plurality of sliding lifting rods are located between the fixed lifting rod and one end of the beam.

[0011] As a preferred technical solution of the present invention, it also includes two groups of driving components, the two groups of driving components are matched with the two groups of lifting rod groups in a one-to-one correspondence, and any of the driving components drives several sliding lifting rods of the same lifting rod group to slide on the crossbeam; the driving component includes a driving motor, a driving shaft and several driving blocks, the driving motor is arranged in the crossbeam, the driving shaft is coaxially connected to the output end of the driving motor, the axial direction of the driving shaft is parallel to the axial direction of the crossbeam, and the several driving blocks are matched with several sliding lifting rods of the same lifting rod group in a one-to-one correspondence, any of the driving blocks is connected to the bottom end of the corresponding sliding lifting rod, and the driving block is slidably arranged on the driving shaft.

[0012] As a preferred technical solution of the present invention, grooves inclined upward from left to right are respectively provided on the inner side walls at both ends of the crossbeam, and the control assembly further comprises two sliders and two return springs, the two sliders are symmetrically arranged at both ends of the control housing, the two sliders are slidably arranged on the corresponding grooves, the two return springs are matched with the two sliders in a one-to-one correspondence, and the two ends of any return spring are respectively connected to the corresponding slider and the groove; The top of the control shell is tilted, and the bottom end of the tilted end of the control shell and the outer wall of the control shell away from the control module form an end line together. When the outer wall of the control shell moves to the side wall of the nearest drive block, the bottom end of the tilted end of the control shell is at the same height as the bottom surface of the drive block; the control shell only releases or locks the abutting relationship between the two and the drive block.

[0013] As a preferred technical solution of the present invention, the control component also includes a limit block and a limit spring. The inner wall of the control shell is provided with a telescopic groove. The limit block is slidably arranged in the telescopic groove. The two ends of the limit spring are respectively connected to the telescopic groove and the limit block; the limit block and the control module are located on the same inner wall of the control shell, and the limit block is located at the top of the control module. When the abutment block presses the control module, the limit block fits against the top of the abutment block.

[0014] As a preferred technical solution of the present invention, it also includes a plurality of limiting blocks, the driving block is provided with a slot hole, the driving block is slidably arranged with the driving shaft through the slot hole, the driving block is also provided with a limiting groove, the limiting groove and the slot hole are interconnected, a plurality of limiting blocks are matched with a plurality of limiting grooves in a one-to-one correspondence, any of the limiting blocks is slidably arranged in the corresponding limiting groove, and the limiting block can lock or release its fitting relationship with the driving shaft.

[0015] As a preferred technical solution of the present invention, it also includes a plurality of connecting rods, a driving space is formed between two adjacent driving blocks, the plurality of driving spaces are matched one-to-one with the plurality of connecting rods, any of the connecting rods is arranged in the corresponding driving space, and the two ends of the connecting rod are respectively connected to the two adjacent limiting blocks; the control component also includes a connecting block, the connecting block is arranged at the top of the control housing near the control module end, and the connecting block can lock or release its abutting relationship with any of the connecting rods.

[0016] The beneficial effects of the present invention are: The present invention is provided with a control component, which is in communication connection with the lifting cylinder. Only when the push rod group completes the telescopic movement can the push rod group drive the control component to control the lifting cylinder to move. Otherwise, the lifting cylinder will not move. Such a setting ensures that the lifting cylinder will not move until the push rod group of the tunnel construction support of the present invention completes the telescopic movement. This solves the problem that the existing tunnel construction supports all have a height lifting structure and a length telescopic structure. During the construction process, the length telescopic structure needs to be manually controlled to work, and the height lifting structure is manually controlled to work after the length telescopic structure completes the work. Such a control method has the problem that the switch controlled by the height lifting structure may be accidentally touched by the human, so that the height lifting structure is driven to move in advance before the length telescopic structure finishes its work, thereby affecting the effect of tunnel construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0018] Figure 1 This is an overall diagram of a highway tunnel construction support of the present invention; Figure 2 This is a cross-sectional view of a vertical beam of a highway tunnel construction support of the present invention; Figure 3 A cross-sectional view of a cross beam of a highway tunnel construction support according to the present invention; Figure 4 The present invention is a cross-sectional view of a control component of a highway tunnel construction support.

[0019] Description of main symbols In the figure: 1. cross beam; 101. groove bar; 2. vertical beam; 3. lifting cylinder; 4. push rod cylinder; 5. abutment block; 6. control assembly; 601. control module; 602. control housing; 603. slider; 604. return spring; 605. limit block; 606. connecting block; 607. limit spring; 7. fixed lifting rod; 8. sliding lifting rod; 9. drive assembly; 901. drive motor; 902. drive shaft; 903. drive block; 10. limit block; 11. connecting rod. DETAILED DESCRIPTION

[0020] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0021] See also Figure 1-4 This embodiment provides a highway tunnel construction support. First of all, it should be explained that this solution is a device for assisting construction workers in installing supports in highway tunnels. The support type applicable to this solution is arch support, including two side wall panels and arch plates. The two side wall panels are respectively arranged at the left and right ends of the tunnel. After the two side wall panels are installed, the device of this solution is used to lift the arch plate to the top of the tunnel to complete the installation. Based on this, the present scheme includes an internally hollow horizontal beam 1 and vertical beam 2, the vertical beam 2 being vertically and equally arranged at the bottom of the horizontal beam 1, and also includes a lifting cylinder 3, two push rod groups and a control component 6, the lifting cylinder 3 is connected to the vertical beam 2 to control the vertical beam 2 to perform lifting movement, and the two push rod groups are symmetrically arranged on both sides of the vertical beam 2; the control component 6 is arranged in the horizontal beam 1, and the control component 6 is communicated with the lifting cylinder 3, and the control component 6 is driven to work the lifting cylinder 3 through the back and forth movement of the push rod group. When the push rod group completes the back and forth telescopic movement, it means that the push rod group has completed the installation between the wall panels on both sides. After the push rod group is reset, the control component 6 is driven to control the lifting cylinder 3 to move and start working, thereby ensuring that the push rod group of the present scheme After completing the telescopic movement and resetting, the lifting cylinder 3 will start working, otherwise, the lifting cylinder 3 will not move. Such a setting ensures that the lifting cylinder 3 will not move until the push rod group of the tunnel construction support of this scheme completes the telescopic movement, which solves the problem that the existing tunnel construction supports all have a height lifting structure and a length telescopic structure. During the construction process, it is necessary to manually control the length telescopic structure to work, and after the length telescopic structure completes the work, the height lifting structure is manually controlled to work; such a control method has the problem that the switch controlled by the height lifting structure is accidentally touched by the human, so that the length telescopic structure drives the height lifting structure to move in advance before the work is completed, thereby affecting the effect of tunnel construction.

[0022] Furthermore, the push rod group of the present scheme includes a plurality of push rod cylinders 4, which are arranged on the side walls of the vertical beam 2 at equal intervals along the axial direction of the vertical beam 2. The push rod cylinders 4 are arranged inside the vertical beam 2, and their output ends extend out of the vertical beam 2. The output direction of the push rod cylinders 4 is parallel to the axial direction of the horizontal beam 1.

[0023] Furthermore, the push rod group of the present scheme also includes an abutment block 5, which is arranged on the output end of the topmost push rod cylinder 4. The control component 6 also includes a control module 601 and a control shell 602. The cross-sectional shape of the control shell 602 is a rectangle with an opening facing downward. The control shell 602 is slidably arranged in the cross beam 1 along the axial direction of the cross beam 1. The control module 601 is arranged on the side wall of the control shell 602 close to the vertical beam 2. The top end of the abutment block 5 extends into the control shell 602. The abutment block 5 can lock or release its abutment relationship with the inner wall of the control shell 602. The control module 601 is communicated with the lifting cylinder 3. When the push rod cylinder 4 of the present scheme is extended, the abutment block 5 will extend along with the output end of the push rod cylinder 4 and move in the direction away from the vertical beam 2. In the process of the output end of the push rod cylinder 4 extending to the specified position, the abutment block 5 will abut against the side wall surface of the control shell 602 away from the control module 601, so that the control shell 602 moves along with the movement of the abutment block 5 until the push rod cylinder 4 stops after reaching the specified position, and the control shell 602 also stops moving. At this time, the control module 601 is located on the vertical plane where the abutment block 5 is reset; after the push rod cylinder 4 completes the extension movement, the output end of the push rod cylinder 4 is reset by manual control. The abutment block 5 moves along with the output end of the push rod cylinder 4 to reset, and during the reset process, the abutment block 5 releases its abutment relationship with the control housing 602 until the abutment block 5 completes the reset, and then the abutment block 5 and the control module 601 are pressed and matched to realize the telescopic movement of the push rod group. After the reset, the driving control component 6 controls the lifting cylinder 3 to move. Therefore, when the push rod cylinder 4 of this solution is extended to a specified length, the abutment block 5 abuts against the side wall surface of the control housing 602 away from the control module 601, and the side wall surface of the control housing 602 where the control module 601 is provided is in the same plane as the side wall surface of the abutment block 5 when it is reset.

[0024] Furthermore, the present solution also includes two groups of jacking rod groups, which are symmetrically arranged at the two ends of the top of the beam 1; the jacking rod group includes a fixed jacking rod 7 and a plurality of sliding jacking rods 8, the fixed jacking rod 7 is arranged at the top of the beam 1, and the plurality of sliding jacking rods 8 are arranged at equal intervals at the top of the beam 1 along the axial direction of the beam 1, and the plurality of sliding jacking rods 8 are located between the fixed jacking rod 7 and one end of the beam 1. It should be noted that the top of the fixed jacking rod 7 of the present solution is fixedly connected to the arch plate, and the sliding jacking rod 8 is slidably connected to the arch plate; and the arch plate is always symmetrically arranged at the top of the beam 1. The sliding jacking rod 8 will move along the axial direction of the beam 1.

[0025] Furthermore, it also includes two driving components 9, the two groups of driving components 9 are matched with the two lifting rod groups one by one, and any driving component 9 drives a plurality of sliding lifting rods 8 of the same lifting rod group to slide on the crossbeam 1; the driving component 9 includes a driving motor 901, a driving shaft 902 and a plurality of driving blocks 903, the driving motor 901 is arranged in the crossbeam 1, the driving shaft 902 is coaxially connected to the output end of the driving motor 901, the axial direction of the driving shaft 902 is parallel to the axial direction of the crossbeam 1, and the plurality of driving blocks 903 are matched with the plurality of sliding lifting rods 8 of the same lifting rod group one by one. Correspondingly matched, any driving block 903 is connected to the bottom end of the corresponding sliding lifting rod 8, and the driving block 903 is slidably set on the driving shaft 902. By setting a driving assembly 9, a number of sliding lifting rods 8 can slide along the axial direction of the beam 1. It should be noted that the reason why this scheme controls the movement of the sliding lifting rod 8 is to facilitate the lifting of the height of the arch plate. The distance between the two ends of the arch plate is less than the distance between the two side wall panels, and the installation of the arch plate requires that the bottom ends of its two ends are respectively fitted with the side wall panels, thereby realizing the installation between the arch plate and the two side wall panels. Based on this, it is necessary to use the driving assembly 9 to move the sliding lifting rod 8 after the arch plate reaches the specified height, that is, after the lifting cylinder 3 is lifted to the specified height. Due to the structure of the arch plate, the closer to the middle, the higher the height of the corresponding sliding lifting rod 8. When the sliding lifting rod 8 starts to move, the shape of the arch plate will be deformed, resulting in the distance between the arch plate being equal to the distance between the two side wall panels.

[0026] Furthermore, in the present embodiment, grooves 101 inclined upward from left to right are respectively provided on the inner walls at both ends of the beam 1, and the control component 6 also includes two sliders 603 and two return springs 604. The two sliders 603 are symmetrically arranged at the two ends of the control housing 602, and the two sliders 603 are slidably arranged on the corresponding grooves 101. The two return springs 604 are matched with the two sliders 603 in a one-to-one manner, and the two ends of any return spring 604 are respectively connected to the corresponding slider 603 and the groove 101. In the present embodiment, the slider 603 is provided to realize that the control housing 602 slides along the groove 101 in the beam 1, and the return spring 604 is provided to realize that the control housing 602 can be lifted and lowered during the sliding process.

[0027] In addition, the top of the control shell 602 is tilted, and the bottom end of the tilted end of the control shell 602 and the outer wall of the control shell 602 away from the control module 601 together form an end line. When the outer wall of the control shell 602 moves to the side wall of the nearest drive block 903, the bottom end of the tilted end of the control shell 602 is at the same height as the bottom surface of the drive block 903; through such a setting, due to the tilted setting of the groove 101 of the present scheme, when the control shell 602 moves to the bottom of the drive block 903, the bottom end of the tilted end of the control shell 602 is at the same height as the bottom surface of the drive block 903, and then when the control shell 602 continues to slide, the control shell 602 decreases in height during the sliding process due to the position of the drive block 903. It is worth noting that the process at this time occurs during the movement of the push rod cylinder 4, and during the entire process, the control shell 602 has and only has a locked or released abutment relationship with the drive block 903.

[0028] Furthermore, the control component 6 of the present scheme also includes a limit block 605 and a limit spring 607. The inner wall of the control shell 602 is provided with a telescopic groove, and the limit block 605 is slidably arranged in the telescopic groove. The two ends of the limit spring 607 are respectively connected to the telescopic groove and the limit block 605; the limit block 605 and the control module 601 are on the inner wall of the same surface of the same control shell 602, and the limit block 605 is located at the top of the control module 601. When the abutment block 5 presses the control module 601, the limit block 605 is in contact with the top of the abutment block 5. It is worth noting that when the abutment block 5 of the present scheme is in contact with the side wall of the control shell 602 away from the control module 601, the control shell 602 can move up and down at this time; when the abutment block 5 is in contact with the limit block 605, the control shell 602 can no longer move downward.

[0029] Furthermore, the present solution further comprises a plurality of limiting blocks 10, a slot is provided in the driving block 903, the driving block 903 is slidably arranged with the driving shaft 902 through the slot, the driving block 903 is further provided with a limiting groove, the limiting groove and the slot are interconnected, a plurality of limiting blocks 10 are matched with a plurality of limiting grooves in a one-to-one correspondence, any limiting block 10 is slidably arranged in the corresponding limiting groove, and the limiting block 10 can lock or release its fitting relationship with the driving shaft 902; in addition, the present solution further comprises a plurality of connecting rods 11, a driving space is formed between two adjacent driving blocks 903, a plurality of driving spaces are matched with a plurality of connecting rods 11 in a one-to-one correspondence, and any connecting rod 11 is arranged at In the corresponding driving space, the two ends of the connecting rod 11 are respectively connected to the two adjacent limiting blocks 10; the control component 6 also includes a connecting block 606, which is arranged at the top of the control housing 602 close to the control module 601, and the connecting block 606 can lock or release its abutment with any connecting rod 11; when the connecting block 606 abuts against any connecting rod 11, due to the setting of the groove 101, the connecting rod 11 will move toward the top, so that several limiting blocks 10 are pressed together with the drive shaft 902, increasing the friction between the limiting block 10 and the drive shaft 902, so that the sliding lifting rod 8 no longer moves.

[0030] It is worth explaining that the working steps of this scheme are: first, manually control the push rod cylinder 4 to move, assist the construction personnel to install the side wall panel, and the abutment block 5 moves together with the push rod cylinder 4. During the movement of the push rod cylinder 4 to the specified position, the abutment block 5 abuts against the side wall surface of the control housing 602 away from the control module 601, driving the control housing 602 to move together; and the driving component 9 starts to move only after the lifting cylinder 3 lifts the beam 1 to the specified position, so the sliding lifting rod 8 does not move during the operation of the push rod cylinder 4. During the movement of the control shell 602, it fits against the bottom of a specific driving block 903. Due to the setting of the groove 101, it should be noted that the inclination angle of the groove 101 is smaller than the inclination angle of the top of the control shell 602. Such a setting enables the control shell 602 to continuously decrease in height due to the pressure of the driving block 903 during the sliding of the control shell 602 along the direction of the groove 101. Until the abutment block 5 reaches the specified position, the control shell 602 is still locked in the pressing fit relationship with the pressing block.

[0031] When the abutment block 5 is reset, the abutment block 5 and the control module 601 are abutted against each other. At this time, since the height of the limit block 605 is lower than the top surface of the abutment block 5 but higher than the bottom surface of the abutment block 5, the abutment block 5 presses the limit block 605 in the telescopic groove; the lifting cylinder 3 starts to work, and after the lifting cylinder 3 lifts the beam 1 to the specified position, the driving component 9 starts to work; it drives the sliding lifting rod 8 to move away from the control shell 602, so that the driving block 903 releases its pressing and fitting relationship with the control shell 602, and the control shell 602 is lifted back to its original position; at this time, the limit block 605 extends out of the telescopic groove again, and the limit block 605 and the top surface of the abutment block 5 are abutted against each other.

[0032] When the sliding top rod is reset, since the control shell 602 has been raised, the drive block 903 will be in contact with the control shell 602 in advance. Since the limit block 605 is in contact with the top surface of the abutment block 5, the control shell 602 will no longer drop in height, but move together with the drive block 903.

[0033] Since the control housing 602 is also provided with a connecting block 606, when the connecting block 606 is abutted against any connecting rod 11, due to the setting of the groove 101, the connecting rod 11 will move toward the top, so that several limiting blocks 10 are pressed and matched with the driving shaft 902 together, thereby increasing the friction between the limiting block 10 and the driving shaft 902, so that the sliding lifting rod 8 no longer moves, thereby realizing the reset of the control housing 602 and the sliding lifting rod 8.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A highway tunnel construction support, comprising a hollow cross beam and a vertical beam, wherein the vertical beam is vertically arranged at the bottom of the cross beam in equal parts, and characterized in that: It also includes a lifting cylinder, two groups of push rod groups and a control component. The lifting cylinder is connected to the vertical beam to control the vertical beam to perform lifting movement. The two groups of push rod groups are symmetrically arranged on both sides of the vertical beam; the control component is arranged in the horizontal beam, and the control component is communicated with the lifting cylinder. The control component is controlled by the back and forth movement of the push rod group to operate the lifting cylinder.

2. A highway tunnel construction support according to claim 1, characterized in that: The push rod group includes a plurality of push rod cylinders, which are arranged on the side walls of the vertical beam at equal intervals along the axial direction of the vertical beam. The push rod cylinders are arranged in the vertical beam, and their output ends extend out of the vertical beam. The output direction of the push rod cylinders is parallel to the axial direction of the horizontal beam.

3. A highway tunnel construction support according to claim 2, characterized in that: The push rod group also includes an abutment block, which is arranged on the output end of the topmost push rod cylinder. The control component also includes a control module and a control housing. The cross-sectional shape of the control housing is a rectangle with an opening facing downward. The control housing is slidably arranged in the cross beam along the axial direction of the cross beam. The control module is arranged on the side wall of the control housing close to the vertical beam. The top end of the abutment block extends into the control housing. The abutment block can lock or release its abutment relationship with the inner wall of the control housing. The control module is communicatively connected to the lifting cylinder.

4. A highway tunnel construction support according to claim 3, characterized in that: When the push rod cylinder is extended to a specified length, the abutment block abuts against the side wall surface in the control housing away from the control module, and the side wall surface in the control housing where the control module is arranged is in the same plane as the side wall surface abutting against the control housing when the abutment block is reset.

5. A highway tunnel construction support according to claim 3, characterized in that: It also includes two groups of lifting rod groups, which are symmetrically arranged at the two ends of the top of the beam; the lifting rod group includes a fixed lifting rod and a plurality of sliding lifting rods, the fixed lifting rod is arranged at the top of the beam, and the plurality of sliding lifting rods are arranged at equal intervals on the top of the beam along the axial direction of the beam, and the plurality of sliding lifting rods are located between the fixed lifting rod and one end of the beam.

6. A highway tunnel construction support according to claim 5, characterized in that: It also includes two groups of driving components, which are matched one-to-one with the two groups of lifting rod groups. Any of the driving components drives several sliding lifting rods of the same lifting rod group to slide on the crossbeam; the driving component includes a driving motor, a driving shaft and several driving blocks. The driving motor is arranged in the crossbeam, the driving shaft is coaxially connected to the output end of the driving motor, the axial direction of the driving shaft is parallel to the axial direction of the crossbeam, and the several driving blocks are matched one-to-one with the several sliding lifting rods of the same lifting rod group. Any of the driving blocks is connected to the bottom end of the corresponding sliding lifting rod, and the driving block is slidably arranged on the driving shaft.

7. A highway tunnel construction support according to claim 6, characterized in that: The inner side walls at both ends of the crossbeam are respectively provided with grooves inclined upward from left to right, and the control assembly further comprises two sliders and two return springs, the two sliders are symmetrically arranged at the two ends of the control housing, the two sliders are slidably arranged on the corresponding grooves, the two return springs are matched with the two sliders in a one-to-one correspondence, and the two ends of any return spring are respectively connected to the corresponding slider and the groove; The top of the control shell is tilted, and the bottom end of the tilted end of the control shell and the outer wall of the control shell away from the control module form an end line together. When the outer wall of the control shell moves to the side wall of the nearest drive block, the bottom end of the tilted end of the control shell is at the same height as the bottom surface of the drive block; the control shell only releases or locks the abutting relationship between the two and the drive block.

8. A highway tunnel construction support according to claim 7, characterized in that: The control component also includes a limit block and a limit spring. The inner wall of the control shell is provided with a telescopic groove. The limit block is slidably arranged in the telescopic groove. The two ends of the limit spring are respectively connected to the telescopic groove and the limit block. The limit block and the control module are located on the same inner wall of the control shell. The limit block is located at the top of the control module. When the abutment block presses the control module, the limit block fits with the top of the abutment block.

9. A highway tunnel construction support according to claim 8, characterized in that: It also includes a plurality of limiting blocks, wherein the driving block is provided with a slot hole, and the driving block is slidably arranged with the driving shaft through the slot hole. The driving block is also provided with a limiting groove, and the limiting groove is communicated with the slot hole. The plurality of limiting blocks are matched with the plurality of limiting grooves in a one-to-one correspondence. Any of the limiting blocks is slidably arranged in the corresponding limiting groove, and the limiting block can lock or release its fitting relationship with the driving shaft.

10. A highway tunnel construction support according to claim 9, characterized in that: It also includes a plurality of connecting rods, a driving space is formed between two adjacent driving blocks, the plurality of driving spaces are matched with the plurality of connecting rods one by one, any of the connecting rods is arranged in the corresponding driving space, and the two ends of the connecting rods are respectively connected to the two adjacent limiting blocks; the control component also includes a connecting block, the connecting block is arranged at the top of the control housing near the control module end, and the connecting block can lock or release its abutting relationship with any of the connecting rods.

Images