A tunnel vault quick support device

Abstract

The present application relates to the technical field of tunnel construction support devices, and in particular to a tunnel vault rapid support device, comprising a support body, a universal wheel is arranged at the bottom of the support body, the support body is slidably connected with a longitudinal sliding mechanism, the longitudinal sliding mechanism is connected with a transverse sliding mechanism, the transverse sliding mechanism comprises a transverse driving assembly, a bidirectional screw and a guide assembly, the transverse driving assembly is connected with the longitudinal sliding mechanism, the output end of the transverse driving assembly is connected with the bidirectional screw, the bidirectional screw is rotationally connected with the longitudinal sliding mechanism, the guide assembly is symmetrically arranged at both ends of the bidirectional screw, the guide assembly is threadedly connected with the bidirectional screw, and the guide assembly is against the support body. The present application has the effect of improving the disassembly and assembly efficiency of the vault support device.

Description

Technical Field

[0001] The present application relates to the technical field of tunnel construction support devices, and in particular to a tunnel vault rapid support device. Background Art

[0002] During the tunnel construction process, the support of the tunnel top wall is a key link to ensure the construction safety. It is often necessary to use a support device to temporarily support the tunnel top wall. Specifically, the arch plate on the top of the support device is used to support the tunnel top wall. In actual construction, the tunnel top wall is generally an arc-shaped arch structure. When the support device is used to support the tunnel top, in order to make the arch plate fit the tunnel top wall, the arch plate is also in an arc-shaped structure so that it can fit the tunnel top wall. When the support device is installed, the support device is moved to the tunnel entrance. In order to make the arch top fit the tunnel top wall, it is necessary to make the center line of the arch top and the tunnel top wall The arch center line is located on the same vertical plane, and the supporting devices are mostly symmetrically distributed with the vertical center line of the arch. In actual operation, it is difficult to align the center line of the arch with the arch center line of the tunnel top wall, which makes it difficult to align the supporting device with the tunnel wall. When the arch rises, the relative position of the arch and the tunnel top wall shifts, so that when aligning the position of the arch, it is necessary to adjust repeatedly, and the installation efficiency is low. Secondly, after the supporting device is dismantled, it is easy to collide with the tunnel wall when moving, and it is difficult for the supporting device to quickly exit the tunnel and complete the entire dismantling process, resulting in low construction efficiency. Utility Model Content

[0003] In order to improve the efficiency of disassembly and assembly of a vault support device, the present application provides a tunnel vault rapid support device.

[0004] The present application provides a tunnel vault rapid support device, which adopts the following technical solution:

[0005] A tunnel vault rapid support device comprises a support body, a universal wheel is arranged at the bottom of the support body, the support body is slidably connected with a longitudinal sliding mechanism, the longitudinal sliding mechanism is connected with a transverse sliding mechanism, the transverse sliding mechanism comprises a transverse drive assembly, a bidirectional screw rod and a guide assembly, the transverse drive assembly is connected with the longitudinal sliding mechanism, the output end of the transverse drive assembly is connected with the bidirectional screw rod, the bidirectional screw rod is rotationally connected with the longitudinal sliding mechanism, the guide assembly is symmetrically arranged at both ends of the bidirectional screw rod, the guide assembly is threadedly connected with the bidirectional screw rod, and the guide assembly is against the support body.

[0006] By adopting the above technical solution, when the support device needs to be installed, the support device rolls to the tunnel entrance under the action of the universal wheel. By setting the universal wheel, the mobility of the support device is improved, the support device is convenient to move quickly, and the disassembly and assembly efficiency of the support device is improved. The longitudinal sliding mechanism is started, and the longitudinal sliding mechanism drives the transverse driving component to move on the support body, thereby driving the guide component to slide along the sliding direction of the longitudinal sliding mechanism. The guide component is inserted into the tunnel entrance, and the transverse driving component is started. The transverse driving component drives the guide component to move along the two ends of the bidirectional screw rod. When only one set of guide components is in close contact with the tunnel wall, the position of the support device is adjusted, and the support device is moved toward the end away from the end in close contact with the tunnel wall until both sets of guide components are in close contact with the tunnel wall, thereby realizing the centering of the moving position of the support device, so that the center line of the support body and the center line of the tunnel are located on the same vertical plane, and the guide component guides the movement of the support body, thereby improving the quickness of disassembly and assembly of the support device and improving the construction efficiency.

[0007] Optionally, the transverse drive assembly includes a transverse drive member, a first sprocket, a second sprocket and a chain, the transverse drive member is connected to the longitudinal sliding mechanism, the output end of the transverse drive member is connected to the first sprocket, the second sprocket is connected to the bidirectional screw rod, and the chain is circled and meshed with the first sprocket and the second sprocket.

[0008] By adopting the above technical solution, when the support body needs to be centered, the transverse driving member is started, and the transverse driving member drives the first sprocket to rotate, the rotation of the first sprocket drives the chain to rotate, the rotation of the chain drives the second sprocket to rotate, and the rotation of the second sprocket drives the bidirectional screw rod to rotate, thereby realizing the possibility of reciprocating movement of the guide assembly on the bidirectional screw rod, improving the smoothness of the rotation of the bidirectional screw rod, thereby improving the correctness of the support body in the tunnel, reducing the possibility of repeated adjustment of the position of the support body, and thereby improving the disassembly and assembly efficiency of the support device.

[0009] Optionally, one end of the guide assembly is in the shape of a cutout, which is used to guide the support device to enter the tunnel entrance.

[0010] By adopting the above technical solution, when the support body enters the tunnel entrance, the position and direction of the support body entering the tunnel are further guided because one end of the guide component is in a cut-out shape, thereby improving the quickness of the support device to be centered.

[0011] Optionally, the guide assembly includes a connecting member, a guiding member and a plurality of rollers, the connecting member is fixed to the guiding member, the rollers are rotatably connected to the guiding member, the connecting member is abutted against the support body, and the lateral drive assembly is used to drive the connecting member to move along both ends of the bidirectional screw rod.

[0012] By adopting the above technical solution, the lateral drive assembly drives the connecting member to move along the two ends of the bidirectional screw rod, thereby driving the guide member to move toward the two ends of the bidirectional screw rod, and the guide member approaches the tunnel wall until the roller abuts against the tunnel wall. When only one roller connected to the guide member is in contact with the tunnel wall, the support body is moved toward the side away from the tunnel wall until the rollers connected to the two guide members abut against the tunnel wall, so as to quickly realize the centering operation of the support device and improve the alignment efficiency of the support device. At the same time, rollers are arranged on the guide member to make the rollers roll against the tunnel wall, thereby reducing friction, improving the smoothness of the movement of the support device in the tunnel, and further improving the disassembly and assembly efficiency of the support device.

[0013] Optionally, the longitudinal sliding mechanism includes a longitudinal driving member, a transmission screw, a moving member and a sliding member, the longitudinal driving member is connected to the support body, the output end of the longitudinal driving member is connected to the transmission screw, the transmission screw is rotatably connected to the support body, the moving member is threadedly connected to the transmission screw, the sliding member is connected to the moving member, the moving member is slidingly connected to the support body, the bidirectional screw is rotatably connected to the moving member, the transverse driving assembly is connected to the moving member, and the bidirectional screw is rotatably connected to the sliding member.

[0014] By adopting the above technical solution, the longitudinal driving member is started, and the longitudinal driving member drives the transmission screw to rotate, and the rotation of the transmission screw drives the moving member to move, and the transverse driving component is connected to the moving member, thereby driving the transverse driving component to move, and the movement of the transverse driving component drives the guide component to move synchronously along the moving direction of the moving member. When the support device needs to enter the tunnel entrance, the guide component moves from the tunnel entrance toward the inside of the tunnel, so that the guide component can be stably inserted into the tunnel entrance, reducing the possibility of the guide component being offset when inserted into the tunnel entrance, causing the moving direction of the support body to be offset, thereby improving the accuracy of the moving direction of the support body, improving the smoothness of the movement of the support body, and thereby improving the disassembly and assembly efficiency of the support device.

[0015] Optionally, a control mechanism is further included, wherein the control mechanism is electrically connected to the longitudinal sliding mechanism and the transverse driving assembly, and the control mechanism is used to control the moving direction of the guide assembly.

[0016] By adopting the above technical solution, a control mechanism is used to control the moving direction of the guide component, thereby achieving automation and improving operational convenience.

[0017] Optionally, the support body includes a support column, a telescopic assembly, a support rod and an arch plate, the bottom of the support column is connected to the universal wheel, the top of the support column is connected to the telescopic assembly, the support rod is raised and lowered by the telescopic assembly, the support rod is connected to the arch plate, and the longitudinal sliding mechanism is slidably connected to the telescopic assembly.

[0018] By adopting the above technical solution, the telescopic component adjusts the height of the arch plate. When the support body needs to be moved or moved out to the supporting position of the tunnel, the telescopic component is started to lower the height of the arch and move the arch away from the top wall of the tunnel. During movement, the friction area between the arch and the inner wall of the tunnel is reduced, thereby improving the smoothness of movement of the support device.

[0019] Optionally, the telescopic assembly includes a first support plate, a hydraulic cylinder and a second support plate, the first support plate is connected to the support column, the first support plate is connected to the hydraulic cylinder, the output end of the hydraulic cylinder is connected to the second support plate, the second support plate is connected to the support rod, and the longitudinal sliding mechanism is slidably connected to the first support plate.

[0020] By adopting the above technical solution, when the height of the arch needs to be lowered, the hydraulic cylinder is started, and the hydraulic cylinder drives the second support plate to lower its height, which is easy to operate and improves the convenience of adjusting the height of the arch.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. When the support device needs to be installed, the support device rolls to the tunnel entrance under the action of the universal wheel. By setting the universal wheel, the mobility of the support device is improved, the support device can be quickly moved, and the disassembly and assembly efficiency of the support device is improved. The longitudinal sliding mechanism is started, and the longitudinal sliding mechanism drives the transverse driving assembly to move on the support body, thereby driving the guide assembly to slide along the sliding direction of the longitudinal sliding mechanism. The guide assembly is inserted into the tunnel entrance, and the transverse driving assembly is started. The transverse driving assembly drives the guide assembly to move along the two ends of the bidirectional screw rod. When only one set of guide assemblies is in close contact with the tunnel wall, the position of the support device is adjusted, and the support device is moved toward the end away from the end in close contact with the tunnel wall until both sets of guide assemblies are in close contact with the tunnel wall, thereby realizing the centering of the moving position of the support device, so that the center line of the support body and the center line of the tunnel are located on the same vertical plane. The guide assembly guides the movement of the support body, thereby improving the quickness of disassembly and assembly of the support device and improving the construction efficiency.

[0023] 2. When the support body enters the tunnel entrance, the guide assembly has one end in a cutout shape, which further guides the position and direction of the support body entering the tunnel, thereby improving the quickness of the support device centering;

[0024] 3. The lateral drive assembly drives the connecting part to move along the two ends of the bidirectional screw rod, thereby driving the guide part to move toward the two ends of the bidirectional screw rod, and the guide part approaches the tunnel wall until the roller abuts against the tunnel wall. When only one roller connected to the guide part is in contact with the tunnel wall, the support body is moved toward the side away from the tunnel wall until the rollers connected to the two guide parts abut against the tunnel wall, so as to quickly realize the centering operation of the support device and improve the alignment efficiency of the support device. At the same time, rollers are arranged on the guide parts to make the rollers roll against the tunnel wall, thereby reducing friction, improving the smoothness of the movement of the support device in the tunnel, and further improving the disassembly and assembly efficiency of the support device. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present application.

[0026] Figure 2 It is a bottom view of the overall structure in the embodiment of the present application.

[0027] Figure 3 It is a schematic diagram of the structure of the lateral drive assembly in an embodiment of the present application.

[0028] Description of reference numerals:

[0029] 1. Support body; 11. Support column; 12. Support rod; 13. Arch plate; 14. First support plate; 15. Hydraulic cylinder; 16. Second support plate; 2. Universal wheel; 3. Longitudinal sliding mechanism; 31. Longitudinal driving member; 32. Transmission screw; 33. Moving member; 34. Sliding member; 4. Transverse driving assembly; 41. Transverse driving member; 42. First sprocket; 43. Second sprocket; 44. Chain; 5. Bidirectional screw; 6. Guide assembly; 61. Connecting member; 62. Guide member; 63. Roller; 7. Control mechanism. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 This application is described in further detail.

[0031] The embodiment of the present application discloses a tunnel vault rapid support device.

[0032] Reference Figure 1 and Figure 2A tunnel vault rapid support device comprises a support body 1, a universal wheel 2 is arranged at the bottom of the support body 1, the support body 1 is slidably connected with a longitudinal sliding mechanism 3, the longitudinal sliding mechanism 3 is connected with a transverse sliding mechanism, the sliding direction of the longitudinal sliding mechanism 3 is perpendicular to the sliding direction of the transverse sliding mechanism, the transverse sliding mechanism comprises a transverse driving component 4, a bidirectional screw rod 5 and a guide component 6, the transverse driving component 4 is fixed to the longitudinal sliding mechanism 3, the output end of the transverse driving component 4 is fixed to the bidirectional screw rod 5, the transverse driving component 4 is located at the center position of the length direction of the bidirectional screw rod 5, the bidirectional screw rod 5 is rotationally connected to the longitudinal sliding mechanism 3, the guide component 6 is symmetrically arranged at both ends of the bidirectional screw rod 5, the guide component 6 is threadedly connected to the bidirectional screw rod 5, and the guide component 6 is against the support body 1.

[0033] When the support device is installed, the support device rolls to the tunnel entrance under the action of the universal wheel 2, and the longitudinal sliding mechanism 3 is started. The longitudinal sliding mechanism 3 drives the transverse driving component 4 to move on the support body 1. The guide component 6 is connected to the transverse driving component 4 through the bidirectional screw rod 5. The transverse driving component 4 moves to drive the guide component 6 to slide along the sliding direction of the longitudinal sliding mechanism 3, so that the guide component 6 is located at the front end of the moving direction of the support device. The guide component 6 is inserted into the tunnel entrance, and the transverse driving component 4 is started. The transverse driving component 4 drives the bidirectional screw rod 5 to rotate. The rotation of the bidirectional screw rod 5 drives the guide component 6 to move along the two ends of the bidirectional screw rod 5. The two groups of guide components 6 are close to the tunnel wall. When only one When the guide assembly 6 is in close contact with the tunnel wall, the position of the support device is adjusted to move the support device toward the end away from the end in close contact with the tunnel wall. The position of the support device is adjusted while the position of the guide assembly 6 on the bidirectional screw rod 5 is adjusted until the two groups of guide assemblies 6 are in close contact with the tunnel wall, thereby realizing the centering of the moving position of the support device, so that the center line of the support body 1 and the center line of the tunnel are located on the same vertical plane. The guide assembly 6 guides the moving direction of the support body 1 entering the tunnel entrance, speeding up the accuracy and efficiency of the support device entering the tunnel entrance. At the same time, it can also guide the support device to enter the tunnel, improve the smoothness of the movement of the support device in the tunnel, improve the quickness of disassembly and assembly of the support device, and improve construction efficiency.

[0034] The area in the tunnel that needs to be supported is in an incompletely dry state. When the guide component 6 moves to the area in the tunnel that needs to be supported, the longitudinal sliding mechanism 3 is started, and the longitudinal sliding mechanism 3 drives the guide mechanism to move, so that the guide mechanism moves to the rear end of the moving direction of the support device, thereby reducing the damage of the guide component 6 to the supporting area of ​​the tunnel wall, and at the same time, reducing the possibility of the guide component 6 sinking into the tunnel wall and causing the guide direction to deviate.

[0035] The support device also includes a control mechanism 7, which is fixed to one side of the support body 1. The control mechanism 7 is electrically connected to the longitudinal sliding mechanism 3 and the transverse driving assembly 4. The control mechanism 7 is used to control the moving direction of the guide assembly 6 to achieve automation and improve operational convenience.

[0036] The support body 1 includes a support column 11, a telescopic assembly, a support rod 12 and an arch plate 13. The support column 11 is provided in multiple numbers. The bottom wall of the support column 11 is fixed to the universal wheel 2, and the top wall of the support column 11 is fixed to the telescopic assembly. The support rod 12 is raised and lowered by the telescopic assembly, and the support rod 12 is connected to the arch plate 13.

[0037] When the support device moves or moves out to the supporting position of the tunnel, the telescopic assembly is started to lower the height of the arch plate 13, so that the arch top is away from the top wall of the tunnel. When the support device moves, the friction area between the arch top and the inner wall of the tunnel is reduced, the smoothness of the movement of the support device is improved, and the support device can be quickly moved into or out of the tunnel, thereby improving the insertion and removal efficiency of the support device.

[0038] The telescopic assembly includes a first support plate 14, a hydraulic cylinder 15 and a second support plate 16. The bottom wall of the first support plate 14 is fixed to the top wall of the support column 11, the top wall of the first support plate 14 is fixed to the bottom wall of the hydraulic cylinder 15, the hydraulic cylinder 15 is vertically arranged, the output end of the hydraulic cylinder 15 is vertically upward, the output end of the hydraulic cylinder 15 is fixed to the bottom wall of the second support plate 16, the second support plate 16 is connected to the support rod 12, the longitudinal sliding mechanism 3 is slidingly connected to the first support plate 14, and the control mechanism 7 is fixedly installed on the bottom wall of the first support plate 14.

[0039] When the height of the arch is to be lowered, the hydraulic cylinder 15 is started, and the hydraulic cylinder 15 drives the second support plate 16 to be lowered, which is easy to operate and improves the convenience of adjusting the height of the arch.

[0040] The longitudinal sliding mechanism 3 includes a longitudinal driving member 31, a transmission screw 32, a moving member 33 and a sliding member 34. The longitudinal driving member 31 is fixedly connected to the first support, the output end of the longitudinal driving member 31 is fixed to one end of the transmission screw 32, the transmission screw 32 is rotatably connected to the first support plate 14, the moving member 33 is threadedly connected to the transmission screw 32, the moving member 33 is slidably connected to the first support plate 14, the transverse driving assembly 4 is fixed to the moving member 33, the sliding member 34 is L-shaped, one end of the sliding member 34 is fixed to one side of the moving member 33, the sliding member 34 is slidably connected to the first support plate 14, the middle length of the bidirectional screw 5 is rotatably connected to the moving member 33, and the bidirectional screw 5 is rotatably connected to the sliding member 34. In this embodiment, the longitudinal driving member 31 adopts a driving motor.

[0041] Start the longitudinal drive member 31, and the longitudinal drive member 31 drives the transmission screw 32 to rotate. The rotation of the transmission screw 32 drives the moving member 33 to move. The transverse drive component 4 is connected to the moving member 33, thereby driving the transverse drive component 4 to move. The movement of the transverse drive component 4 drives the guide component 6 to move synchronously along the moving direction of the moving member 33. When the support device needs to enter the tunnel entrance, the guide component 6 moves from the tunnel entrance toward the inside of the tunnel, so that the guide component 6 is stably inserted into the tunnel entrance, reducing the possibility of the guide component 6 being offset when inserted into the tunnel entrance, causing the moving direction of the support device to deviate, thereby improving the accuracy of the moving direction of the support device, improving the smoothness of the movement of the support device, and thereby improving the disassembly and assembly efficiency of the support device.

[0042] Reference Figure 3 The transverse drive assembly 4 includes a transverse drive member 41, a first sprocket 42, a second sprocket 43 and a chain 44. The transverse drive member 41 is fixed to the movable member 33. The output end of the transverse drive member 41 is connected to the first sprocket 42. The second sprocket 43 is fixed to the bidirectional lead screw 5. The inner wall of the second sprocket 43 is fixed to the outer wall of the bidirectional lead screw 5. The second sprocket 43 is located at the center of the length direction of the bidirectional lead screw 5. The chain 44 is arranged around and meshed with the first sprocket 42 and the second sprocket 43. In this embodiment, the transverse drive member 41 adopts a driving motor.

[0043] When the support device needs to be centered, the transverse drive member 41 is started, and the transverse drive member 41 drives the first sprocket 42 to rotate. The rotation of the first sprocket 42 drives the chain 44 to rotate. The rotation of the chain 44 drives the second sprocket 43 to rotate. The rotation of the second sprocket 43 drives the bidirectional screw rod 5 to rotate, thereby realizing the possibility of the guide component 6 to move back and forth on the bidirectional screw rod 5, improving the rotation stability of the bidirectional screw rod 5, thereby improving the correctness of the support device in the tunnel, reducing the possibility of repeated adjustment of the position of the support device, and thereby improving the disassembly and assembly efficiency of the support device.

[0044] The guide assembly 6 is symmetrically arranged on both sides of the second sprocket 43, and the guide assembly 6 includes a connecting member 61, a guiding member 62 and a plurality of rollers 63. The connecting member 61 is fixed to the guiding member 62 and is in a T-shape. The roller 63 is rotatably connected to the guiding member 62. The roller 63 is located on the side of the guiding member 62 away from the connecting member 61. The connecting member 61 is abutted against the first support plate 14. The connecting member 61 is threadedly connected to the bidirectional screw rod 5. A sliding groove is provided on one side of the connecting member 61. The end of the sliding member 34 away from the moving member 33 is located in the sliding groove, and the sliding member 34 slides with the groove wall of the sliding groove.

[0045] When the guide member 62 moves to the tunnel entrance under the driving action of the longitudinal drive member 31, the transverse drive member 41 is started, and the transverse drive member 41 drives the connecting member 61 to move along the two ends of the bidirectional screw rod 5, thereby driving the guide member 62 to move toward the two ends of the bidirectional screw rod 5, so that the guide member 62 is close to the tunnel wall until the roller 63 is in contact with the tunnel wall. When only one roller 63 connected to the guide member 62 is in contact with the tunnel wall, the support device is moved toward the side away from the in contact tunnel wall until the rollers 63 connected to the two guide members 62 are in contact with the tunnel wall. The centering operation of the support device is quickly realized, thereby improving the alignment efficiency of the support device. At the same time, a roller 63 is arranged on the guide member 62 to make the roller 63 roll with the tunnel wall, thereby reducing friction, improving the smoothness of the movement of the support device in the tunnel, and further improving the disassembly and assembly efficiency of the support device.

[0046] Along the forward direction of the support device, in order to improve the accuracy and efficiency of the support device entering the tunnel entrance, one end of the guide member 62 is in a cut-out shape, which is used to guide the support device to enter the tunnel entrance. When the support device enters the tunnel entrance, because one end of the guide member 62 is in a cut-out shape, the position and direction of the support device entering the tunnel are further guided, thereby improving the speed of centering the support device.

[0047] The implementation principle of a tunnel vault quick support device in the embodiment of the present application is as follows: when the support device needs to be installed, the longitudinal driving member 31 is started, and the longitudinal driving member 31 drives the guide member 62 to move on the first support plate 14 through the transmission screw 32, so that the guide member 62 is inserted into the tunnel entrance, and the transverse driving member 41 is started, and the transverse driving member 41 drives the bidirectional screw 5 to rotate, so that the guide members 62 at both ends of the bidirectional screw 5 move in the opposite direction, and the guide members 62 are close to the tunnel wall. When only one ball on the guide member 62 is against the tunnel wall, the support device is moved away from the side that is close to the tunnel wall. The guide members 62 are moved sideways until the rollers 63 connected to the two guide members 62 are both against the tunnel wall, so as to quickly realize the centering operation of the support device, improve the alignment efficiency of the support device, enhance the smoothness of the movement of the support device in the tunnel, facilitate the rapid movement of the support device to the tunnel support area, and realize the rapid centering of the arch plate 13 and the tunnel, without the need to repeatedly adjust the position of the arch plate 13, thereby speeding up the installation process and improving the installation efficiency of the support device; when disassembling the support device, the support device moves smoothly in the tunnel, so that the support device can be quickly moved to the outside of the tunnel entrance, thereby speeding up the disassembly process and improving the disassembly efficiency of the support device.

[0048] The above are all preferred embodiments of the present application. The embodiments are only explanations of the present application and do not limit the protection scope of the present application in turn. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A tunnel vault rapid support device, characterized in that: The invention comprises a support body (1), the bottom of which is provided with a universal wheel (2), the support body (1) being slidably connected with a longitudinal sliding mechanism (3), the longitudinal sliding mechanism (3) being connected with a transverse sliding mechanism, the transverse sliding mechanism comprising a transverse driving component (4), a bidirectional screw rod (5) and a guide component (6), the transverse driving component (4) being connected with the longitudinal sliding mechanism (3), the output end of the transverse driving component (4) being connected with the bidirectional screw rod (5), the bidirectional screw rod (5) being rotatably connected with the longitudinal sliding mechanism (3), the guide component (6) being symmetrically arranged at both ends of the bidirectional screw rod (5), the guide component (6) being threadedly connected with the bidirectional screw rod (5), and the guide component (6) being abutted against the support body (1).

2. A tunnel vault rapid support device according to claim 1, characterized in that: The transverse drive assembly (4) comprises a transverse drive member (41), a first sprocket (42), a second sprocket (43) and a chain (44); the transverse drive member (41) is connected to the longitudinal sliding mechanism (3); the output end of the transverse drive member (41) is connected to the first sprocket (42); the second sprocket (43) is connected to the bidirectional screw rod (5); and the chain (44) is arranged around and meshed with the first sprocket (42) and the second sprocket (43).

3. A tunnel vault rapid support device according to claim 1, characterized in that: One end of the guide assembly (6) is in the shape of a cutout and is used to guide the support device to enter the tunnel opening.

4. A tunnel vault rapid support device according to claim 1, characterized in that: The guide assembly (6) comprises a connecting member (61), a guiding member (62) and a plurality of rollers (63); the connecting member (61) is fixed to the guiding member (62); the rollers (63) are rotatably connected to the guiding member (62); the connecting member (61) abuts against the supporting body (1); and the lateral drive assembly (4) is used to drive the connecting member (61) to move along the two ends of the bidirectional screw rod (5).

5. The tunnel vault rapid support device according to claim 1, characterized in that: The longitudinal sliding mechanism (3) comprises a longitudinal driving member (31), a transmission screw (32), a moving member (33) and a sliding member (34); the longitudinal driving member (31) is connected to the supporting body (1); the output end of the longitudinal driving member (31) is connected to the transmission screw (32); the transmission screw (32) is rotatably connected to the supporting body (1); the moving member (33) is threadedly connected to the transmission screw (32); the sliding member (34) is connected to the moving member (33); the moving member (33) is slidably connected to the supporting body (1); the bidirectional screw (5) is rotatably connected to the moving member (33); the transverse driving assembly (4) is connected to the moving member (33); the bidirectional screw (5) is rotatably connected to the sliding member (34).

6. A tunnel vault rapid support device according to claim 1, characterized in that: It also comprises a control mechanism (7), wherein the control mechanism (7) is electrically connected to the longitudinal sliding mechanism (3) and the transverse driving assembly (4), and the control mechanism (7) is used to control the moving direction of the guide assembly (6).

7. The tunnel vault rapid support device according to claim 1, characterized in that: The support body (1) comprises a support column (11), a telescopic assembly, a support rod (12) and an arch plate (13); the bottom of the support column (11) is connected to the universal wheel (2); the top of the support column (11) is connected to the telescopic assembly; the support rod (12) is raised and lowered by the telescopic assembly; the support rod (12) is connected to the arch plate (13); and the longitudinal sliding mechanism (3) is slidably connected to the telescopic assembly.

8. A tunnel vault rapid support device according to claim 7, characterized in that: The telescopic assembly comprises a first support plate (14), a hydraulic cylinder (15) and a second support plate (16); the first support plate (14) is connected to the support column (11); the first support plate (14) is connected to the hydraulic cylinder (15); the output end of the hydraulic cylinder (15) is connected to the second support plate (16); the second support plate (16) is connected to the support rod (12); and the longitudinal sliding mechanism (3) is slidingly connected to the first support plate (14).

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