A tunnel construction anti-collapse support device

Abstract

The present invention relates to the technical field of tunnel support devices, and specifically discloses a tunnel construction anti-collapse support device, which includes: a Y-shaped support frame; two arc-shaped support sliding frames are symmetrically arranged, and the two arc-shaped support sliding frames are respectively hinged at both ends of the top of the Y-shaped support frame. An arc-shaped sliding groove is formed on the outer arc surface of the arc-shaped support sliding frame, a sliding component is slidably arranged inside the arc-shaped sliding groove, a pulling rope component is rotatably arranged on the Y-shaped support frame, and the pulling rope component is in transmission connection with the sliding component; supports are arranged on both sides of the Y-shaped support frame, and a support plate is arranged on the supports. The tunnel construction anti-collapse support device of the present invention can quickly assemble steel arch frames, thereby reducing the risk of workers working at heights, while reducing the working intensity of workers, improving the installation efficiency of the entire tunnel support, and reducing the risk of tunnel collapse.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel support devices, and particularly to an anti-collapse support device for tunnel construction. Background Art

[0002] An anti-collapse support device for tunnel construction is a key equipment used to support surrounding rocks and prevent collapse during tunnel excavation. It dynamically adjusts the support structure, such as a hydraulic lifting column, to fit the arc of the tunnel vault, reducing stress concentration caused by air gaps. At the same time, it combines components such as anchor bolts and steel arch frames to form a multi-layer reinforcement system, enhancing the overall stability of the surrounding rocks. This device can reduce the risk of cave-ins, ensure personnel safety and construction efficiency, and is applicable to tunnel projects under complex geological conditions.

[0003] In a Chinese patent with the publication number CN208650862U, an anti-collapse support device for tunnel construction is disclosed, which includes a pre-embedded base. On the left and right sides of the top of the pre-embedded base, support columns are symmetrically arranged through anchor bolts. Side wall support plates are arranged on the outer sides of the two groups of support columns. The inner side walls of the side wall support plates and the support columns are fixedly supported through side wall connecting rods. A force-bearing arched plate is arranged directly above the pre-embedded base. The force-bearing arched plate includes an arc-shaped main board, mounting ear seats, mounting platforms, and circular limit grooves. Thin hydraulic jacks are fixedly installed at the tops of the support columns. A piston rod and a heavy-duty spring are connected between the two mounting platforms of the force-bearing arched plate. A top support plate is fixedly arranged at the top of the inner cavity of the tunnel through an anchor bolt. A pre-tightening connection assembly is arranged between the top support plate and the arc-shaped main board. This application provides an anti-collapse support device for tunnel construction with complete force conduction and a higher safety factor.

[0004] In the above patent document, a top support plate is fixedly arranged through an anchor bolt, and a pre-tightening connection assembly is arranged between the top support plate and the arc-shaped main board to improve the safety factor. However, when installing the arc-shaped main board of the support plate, manual high-altitude operations are still required, and manual installation and splicing are needed, resulting in an increase in the workload of workers and a relatively high risk for workers to splice steel arch frames at high altitudes, making it easy to occur safety accidents. Summary of the Invention

[0005] The present invention provides an anti-collapse support device for tunnel construction, aiming to solve the technical problems in the related art that manual installation and splicing are required, resulting in an increase in the workload of workers and a relatively high risk for workers to splice steel arch frames at high altitudes, making it easy to occur safety accidents.

[0006] An anti-collapse support device for tunnel construction according to the present invention includes:

[0007] A Y-shaped support frame, the height of which can be adjusted up and down;

[0008] Two arc-shaped support sliders, symmetrically arranged, are respectively hinged at both ends of the top of the Y-shaped support frame, and the two arc-shaped support sliders can be spliced into an arched support slider. An arc-shaped chute is provided on the outer arc surface of the arc-shaped support slider, and the arc-shaped chute is used for the conveying and rapid splicing of the steel arch frame;

[0009] A sliding component, slidably arranged inside the arc-shaped chute, is used for conveying the steel arch frame to the installation position for sequential splicing;

[0010] A cable component, rotatably arranged on the Y-shaped support frame, and the cable component is in transmission connection with the sliding component, so that the cable component can drive the two sliding components to move in the opposite direction along the arc-shaped support slider;

[0011] Supports are arranged on both sides of the Y-shaped support frame, and a support plate is arranged on the support. The support plate is used for supporting the bottom end of the arc-shaped support slider, and the support plate can adjust the movement in the up and down height direction and the horizontal direction.

[0012] Preferably, arc-shaped guide grooves I are respectively provided on the opposite side walls inside the arc-shaped chute, and an arc-shaped guide groove II is provided on the bottom wall inside the arc-shaped chute. The arc-shaped guide groove I and the arc-shaped guide groove II are in sliding fit with the sliding component to ensure that the sliding component moves stably along the arc-shaped chute on the arc-shaped support slider.

[0013] Preferably, a group of fixing plates are arranged on the inner arc surface of the arc-shaped support slider. Each group of fixing plates has two, and the two fixing plates are symmetrically arranged. Connecting rods are arranged on the opposite side walls of the fixing plates, and the two ends of the top of the Y-shaped support frame are respectively hinged to the connecting rods on the two arc-shaped support sliders.

[0014] Preferably, the sliding component includes a front sliding plate, a rear sliding plate and a counterweight block. The front sliding plate and the rear sliding plate are connected, and the connection part between the two is located inside the arc-shaped guide groove II. Guide blocks are arranged on the two opposite side walls of the front sliding plate, and the guide blocks are in sliding fit with the arc-shaped guide groove I, so that the front sliding plate and the rear sliding plate can move stably along the arc-shaped chute. The counterweight block is arranged at the bottom of the rear sliding plate.

[0015] Preferably, the Y-shaped support frame includes a base, a sliding sleeve and a support rod. The base is located on the ground, the support rod is arranged along the axial direction of the base, and a motor is installed inside the base. The output end of the motor is in transmission connection with the bottom end of the support rod. The top of the support rod is provided with a top plate. A thread groove is provided on the outer peripheral surface of the support rod, and the thread groove is only provided on the upper half of the support rod, and the lower half has a smooth outer peripheral surface. The sliding sleeve is sleeved on the outer peripheral surface of the support rod, and the inner ring surface of the sliding sleeve is in threaded fit with the thread groove. The support rods are symmetrically arranged on the outer peripheral surface of the sliding sleeve, and the top ends of the support rods are hinged to the inner arc surface of the arc-shaped support slider, and the two support rods are arranged in a Y shape.

[0016] Preferably, the drawstring assembly includes: a rotating cylinder, a first winding wheel, and a second winding wheel. The rotating cylinder is rotatably arranged on the top surface of the top plate, and the first winding wheel and the second winding wheel are sleeved on the outer peripheral surface of the rotating cylinder. The second winding wheel is located above the first winding wheel, and there is a gap between the first winding wheel and the second winding wheel. Both the first winding wheel and the second winding wheel are wound with drawstrings.

[0017] Preferably, a pull ring is provided at the top of the rear sliding plate. The drawstrings on the first winding wheel and the second winding wheel are respectively connected to the corresponding pull rings. A rotating wheel is provided on the outer peripheral surface of the connecting rod, and the rotating wheel is located on one side of the hinge. The drawstrings on the first winding wheel and the second winding wheel are respectively connected to the pull rings through the corresponding rotating wheels.

[0018] Preferably, adjusting frames I are provided on both sides of the support. The adjusting frames I are in the shape of concave brackets in the width direction of the support. A driving motor I is provided on the outer wall of one side of the adjusting frame I. A first lead screw is provided at the output end of the driving motor I, and the adjusting frame I plays a supporting role for the first lead screw. A plurality of guide rods I are provided on the side walls opposite to the concave surface of the adjusting frame I, and the guide rods I are arranged along the width direction of the support, and the guide rods I are distributed up and down on both sides of the first lead screw. An adjusting frame II is provided on the adjusting frame I, and the first lead screw and the guide rods I penetrate through the adjusting frame II.

[0019] Preferably, a driving motor II is provided at the top of the adjusting frame II. A second lead screw is provided at the output end of the driving motor II. An adjusting block is provided on the outer peripheral surface of the second lead screw. The adjusting frame II is also in the shape of a concave bracket. Guide rods II are provided on the side walls opposite to the concave surface of the adjusting frame II. The guide rods II penetrate through the adjusting block to play a role in stably guiding the adjusting block. The support plate is connected to the opposite side walls of the adjusting blocks on the two adjusting frames I.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. Through the linkage design of the sliding component's arc-shaped supporting slide and the drawstring component, the automatic conveying of the steel arch along the arc-shaped chute is realized. This mechanical transmission method replaces the traditional manual handling, reduces the risk of high-altitude operations, and improves the splicing efficiency of the steel arch at the same time.

[0022] 2. The two arc-shaped supporting slides are spliced into an arch structure through the hinge design to form a semi-circular supporting slide, which is convenient for transportation and on-site assembly, improves the efficiency of the entire tunnel support, and at the same time, the threaded groove of the support rod cooperates with the sliding sleeve, and the height adjustment of the Y-shaped support frame is realized in combination with the guide rod to adapt to the requirements of different tunnel cross-sections.

[0023] 3. The driving component controls the forward and reverse rotation of the rotating cylinder through the motor to realize the reciprocating winding and unwinding of the drawstring. After the steel arch is conveyed to the top, the counterweight drives the sliding plate to automatically reset, reducing manual intervention and improving the continuous operation ability.

[0024] 4. Multi - dimensional adjustable support base. The support plate realizes precise adjustment of horizontal position and height through a lead screw and guide rod mechanism, quickly adapts to the uneven terrain at the bottom of the tunnel, enhances the terrain adaptability of the device, and shortens the support preparation time. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0026] Figure 2 It is a schematic diagram of the arc - shaped chute structure of the present invention.

[0027] Figure 3 It is a schematic diagram of the arc - shaped support slide structure of the present invention.

[0028] Figure 4 It is a schematic diagram of the rear sliding plate structure of the present invention.

[0029] Figure 5 It is a schematic diagram of the support rod structure of the present invention.

[0030] Figure 6 It is a schematic diagram of the rotating cylinder structure of the present invention.

[0031] Figure 7 It is a schematic diagram of the front sliding plate structure of the present invention.

[0032] Figure 8 It is a schematic diagram of the pull rope structure of the present invention.

[0033] Figure 9 It is a schematic diagram of the support structure of the present invention.

[0034] Figure 10 It is a schematic diagram of the second adjusting frame of the present invention.

[0035] Figure 11 It is a schematic diagram of the telescopic rod structure of the present invention.

[0036] Reference Numerals:

[0037] 10. Support rod; 11. Base; 12. Guide rod three; 13. Sliding sleeve; 14. Support rod; 15. Threaded groove; 16. Top plate; 20. Support; 21. Support plate; 22. Driving motor one; 23. First lead screw; 24. Adjusting frame two; 25. Driving motor two; 26. Second lead screw; 27. Adjusting frame one; 28. Guide rod one; 29. Guide rod two; 30. Arc-shaped support sliding frame; 31. Arc-shaped chute; 32. First arc-shaped guide groove; 33. Second arc-shaped guide groove; 40. Front sliding plate; 41. Guide block; 42. Rear sliding plate; 43. Counterweight; 44. Pulling ring; 50. Rotating cylinder; 51. First winding wheel; 52. Second winding wheel; 53. Pulling rope; 54. Runner; 55. Tooth ring; 56. Gear; 60. Fixed plate; 61. Connecting rod; 70. Adjusting block; 90. Telescopic rod; 91. Connecting plate. Detailed implementation manner

[0038] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention and should not be construed as a limitation to the present invention.

[0039] As Figures 1 to 11 shown, a tunnel construction anti-collapse support device of the present invention includes: a Y-shaped support frame, the height of the Y-shaped support frame can be adjusted up and down, arc-shaped support sliding frames 30 are respectively hinged at the two top positions of the Y-shaped support frame, and the two arc-shaped support sliding frames 30 can be spliced into an arched support sliding frame. A sliding component is arranged on each arc-shaped support sliding frame 30, and the sliding component is used for conveying support I-beams to the installation positions for splicing in sequence. A pulling rope component is arranged on the Y-shaped support frame, and the pulling rope component is in transmission connection with the sliding component, so that the pulling rope component can drive the two sliding components to move in the opposite direction along the arc-shaped support sliding frame 30. Supports 20 are arranged on both sides of the Y-shaped support frame, and support plates 21 are arranged on the supports 20. The support plates 21 can adjust the height and horizontal position up and down, so that the support plates 21 are used for quickly supporting the arc-shaped support sliding frame 30.

[0040] When tunnel support is required, workers manually set up the Y-shaped support frame and the arc-shaped support slide 30. By manually pushing the two ends of the bottom of the two arc-shaped support slides 30, the two end faces at the top of the two arc-shaped support slides 30 are made to abut against each other, enabling the two arc-shaped support slides 30 to be spliced into a semi-circular support slide. Subsequently, the support 20 is moved to the two ends of the bottom of the two arc-shaped support slides 30. The support plate 21 can be quickly adjusted in all directions so that the top surface of the support plate 21 abuts against the bottom surfaces of the two arc-shaped support slides 30 and provides stable support for them. Workers place the steel arch frames to be spliced into the conveying grooves of the two arc-shaped support slides 30. Subsequently, the rope pulling assembly pulls the sliding assembly to move. The movement of the sliding assembly drives the steel arch frames to move from the bottom end faces of the arc-shaped support slides 30 to the top end faces for splicing in sequence, thereby reducing the risk of workers working at heights, avoiding the high labor intensity of manually splicing steel arch frames, improving the installation efficiency of the entire tunnel support, and reducing the risk of tunnel collapse.

[0041] As Figures 1 to 7 shown, the support slide is integrally arched and composed of two arc-shaped support slides 30 spliced together. The two arc-shaped support slides 30 are symmetrically arranged and are respectively hinged at the two ends of the top of the Y-shaped support frame. An arc-shaped chute 31 is provided on the outer arc surface of each arc-shaped support slide 30. The arc-shaped chute 31 is used to place the steel arch frame, and the arc-shaped chute 31 can play a guiding role for the steel arch frame. Arc-shaped guide grooves 32 are provided on the opposite side walls inside the arc-shaped chute 31, and an arc-shaped guide groove 33 is provided on the bottom wall inside the arc-shaped chute 31. The arc-shaped guide grooves 32 and the arc-shaped guide groove 33 are in sliding cooperation with the sliding assembly, ensuring that the sliding assembly moves stably along the arc-shaped chute 31 on the arc-shaped support slide 30, thereby realizing the stable conveying and splicing of the steel arch frame and improving the efficiency of tunnel support.

[0042] A set of fixing plates 60 are provided on the inner arc surfaces of the two arc-shaped support slides 30. Each set of fixing plates 60 consists of two fixing plates, and the two fixing plates 60 are symmetrically arranged. A connecting rod 61 is provided on the opposite side walls of the fixing plates 60, and the two ends of the top of the Y-shaped support frame are respectively hinged to the connecting rods 61 on the two arc-shaped support slides 30, so that when the two arc-shaped support slides 30 are spliced, the two arc-shaped support slides 30 rotate relative to each other with the connecting rod 61 as the fulcrum to be spliced into an arched support slide.

[0043] As Figures 3 to 7 shown, the sliding assembly includes: a front sliding plate 40, a rear sliding plate 42, and a counterweight 43. The front sliding plate 40 and the rear sliding plate 42 are connected, and the connection part between the two is located inside the arc-shaped guide groove 33 As Figure 7As shown, guide blocks 41 are provided on two opposite side walls of the front sliding plate 40, and the guide blocks 41 are slidably engaged with the first arc-shaped guide groove 32, so that the front sliding plate 40 and the rear sliding plate 42 can stably move along the arc-shaped chute 31. A counterweight block 43 is provided at the bottom of the rear sliding plate 42. It should be noted that the counterweight block 43 is designed to balance the center of gravity of the sliding assembly to prevent tipping during the sliding process.

[0044] As Figures 3 to 8 shown, the cable assembly includes: a rotating cylinder 50, a first winding wheel 51 and a second winding wheel 52. The rotating cylinder 50 is rotatably provided on the top surface of the top plate 16, and the first winding wheel 51 and the second winding wheel 52 are sleeved on the outer peripheral surface of the rotating cylinder 50, and the second winding wheel 52 is located above the first winding wheel 51. There is a gap between the first winding wheel 51 and the second winding wheel 52. Cables 53 are wound around both the first winding wheel 51 and the second winding wheel 52. A pull ring 44 is provided at the top of the rear sliding plate 42. The cables 53 on the first winding wheel 51 and the second winding wheel 52 are respectively connected to the corresponding pull rings 44. A rotating wheel 54 is provided on the outer peripheral surface of the connecting rod 61, and the rotating wheel 54 is located on one side of the hinge joint, so as to avoid interference between the cable 53 and the hinge joint. The cables 53 on the first winding wheel 51 and the second winding wheel 52 are respectively connected to the pull ring 44 through the corresponding rotating wheels 54 to ensure smoothness during the pulling process. A driving assembly is provided inside the rotating cylinder 50, and the driving assembly can drive the rotating cylinder 50 to rotate.

[0045] After two arc-shaped supporting sliding frames 30 are spliced into an arch-shaped supporting sliding frame, a worker places a section of steel arch frame in the arc-shaped chute 31. The driving assembly drives the rotating cylinder 50 to rotate on the top plate 16. The rotation of the rotating cylinder 50 drives the first winding wheel 51 and the second winding wheel 52 to rotate. The rotation of the first winding wheel 51 and the second winding wheel 52 drives the corresponding cables 53 to wind up, so that the cables 53 pull the pull ring 44 to drive the rear sliding plate 42 and the front sliding plate 40 to move, so that the front sliding plate 40 drives the steel arch frame to move from both ends of the bottom of the arch frame to the middle position of the arch frame, and the steel arch frames are transported and spliced in sequence and bolted manually. After the steel arch frame is transported to the upper part, the driving assembly will drive the rotating cylinder 50 to rotate in the reverse direction, so that the cables 53 are relaxed, causing the counterweight block 43, the front sliding plate 40 and the rear sliding plate 42 to move downward along the arc-shaped chute 31 under their own gravity to reset. Therefore, the overall installation efficiency is improved, and at the same time, the risk of high-altitude operation for workers is reduced.

[0046] As Figures 5 to 6As shown, the driving assembly includes: a gear ring 55 and a gear 56. The gear ring 55 is arranged on the inner ring surface of the rotating drum 50. A motor is arranged on the top of the top plate 16, and the output end of the motor is arranged upward. The gear 56 is arranged at the output end of the motor, and the gear 56 is meshed with the gear ring 55. When winding or unwinding is required, the motor drives the gear 56 to rotate. Since the gear 56 is meshed with the gear ring 55, the rotation of the gear 56 drives the rotating drum 50 to rotate, and the rotating drum 50 rotates to realize the winding or unwinding of the pull rope 53.

[0047] like Figures 1 to 3 As shown, the Y-shaped support frame includes: a base 11, a sliding sleeve 13 and a support rod 14, the base 11 is located on the ground, the support rod 10 is arranged along the axial direction of the base 11, and a motor is installed inside the base 11, the output end of the motor is transmission-connected with the bottom end of the support rod 10, a top plate 16 is arranged on the top of the support rod 10, a thread groove 15 is opened on the outer peripheral surface of the support rod 10, and the thread groove 15 is only opened in the upper half of the support rod 10, and the lower half is a smooth outer peripheral surface, the sliding sleeve 13 is sleeved on the outer peripheral surface of the support rod 10, and the sliding sleeve 13 The inner annular surface is threadedly matched with the thread groove 15 so that the sliding sleeve 13 can move up and down along the axial direction of the support rod 10. Two guide rods 3 12 are arranged on the top of the base 11, and the guide rods 3 12 pass through the upper and lower end surfaces of the sliding sleeve 13, and the top ends of the guide rods 3 12 are fixedly connected to the bottom wall of the top plate 16, so that the sliding sleeve 13 can move stably up and down. The support rods 14 are symmetrically arranged on the outer peripheral surface of the sliding sleeve 13, and the top ends of the support rods 14 are hinged to the inner arc surface of the arc-shaped support slide 30, and the two support rods 14 are arranged in a Y shape.

[0048] When the arc-shaped support slide 30 needs to be raised or lowered, the motor can drive the support rod 10 to rotate, and the rotation of the support rod 10 drives the sliding sleeve 13 to move downward, and the downward movement of the sliding sleeve 13 drives the support rod 14 to move downward, and the downward movement of the support rod 14 drives the arc-shaped support slide 30 to move downward, thereby realizing that the arc-shaped support slide 30 can be raised and lowered, so that the arc-shaped support slide 30 can be quickly folded after use for easy storage and transportation.

[0049] like Figures 9 to 10As shown in the figure, adjusting frames one 27 are arranged on both the left and right sides of the support 20. The adjusting frame one 27 is in the shape of a concave bracket in the width direction of the support 20. A driving motor one 22 is arranged on the outer wall of one side of the adjusting frame one 27. The output end of the driving motor one 22 is provided with a first lead screw 23, and the adjusting frame one 27 plays a supporting role for the first lead screw 23. A plurality of guide rods one 28 are arranged on the side walls opposite to the concave surface of the adjusting frame one 27. The guide rods one 28 are arranged along the width direction of the support 20 and are distributed above and below both sides of the first lead screw 23. An adjusting frame two 24 is arranged on the adjusting frame one 27. The first lead screw 23 and the guide rods one 28 penetrate through the adjusting frame two 24. A driving motor two 25 is arranged at the top of the adjusting frame two 24. The output end of the driving motor two 25 is provided with a second lead screw 26. An adjusting block 70 is arranged on the outer peripheral surface of the second lead screw 26. The adjusting frame two 24 is also in the shape of a concave bracket. Guide rods two 29 are arranged on the side walls opposite to the concave surface of the adjusting frame two 24. The guide rods two 29 penetrate through the adjusting block 70 to play a role in stably guiding the adjusting block 70. The opposite side walls of the adjusting blocks 70 on the two adjusting frames one 27 are connected and provided with a support plate 21.

[0050] In order to be able to further quickly complete the splicing and support of the arc-shaped support slide 30, it is necessary to quickly support the bottom end of the arc-shaped support slide 30. Since the ground inside the tunnel is uneven, when the arc-shaped support slide 30 is spliced into an arch shape, the supports 20 are respectively moved to both ends of the bottom of the arc-shaped support slide 30. The driving motor one 22 drives the first lead screw 23 to rotate. The rotation of the first lead screw 23 can drive the adjusting frame two 24 to move and adjust along the width direction of the support 20. The movement of the adjusting frame two 24 drives the support plate 21 to move and adjust along the width direction of the support 20. The driving motor two 25 drives the second lead screw 26 to rotate. The rotation of the second lead screw 26 drives the adjusting block 70 to move up and down, so that the adjusting block 70 drives the support plate 21 to adjust up and down. Therefore, the support plate 21 on the support 20 can be quickly adjusted in all directions, thereby improving the construction speed of the entire arc-shaped support slide 30 and the support efficiency of the entire tunnel support. At the same time, the bottom end of the arc-shaped support slide 30 is fixedly connected to the top surface of the support plate 21. In this embodiment, it is connected by bolts to enable the support plate 21 to stably support the arc-shaped support slide 30 and ensure the stability of the steel arch during the movement and splicing of the arc-shaped support slide 30.

[0051] It should be noted that after the arc-shaped support slide 30 completes the splicing of the steel arch, it can be used as a tunnel support device to support the tunnel together. Only the supports 20 and the Y-shaped support frames need to be disassembled for the next use, so that the arc-shaped support slide 30 and the steel arch jointly support and protect the tunnel to improve the support effect.

[0052] As Figure 11As shown, in order to better enable the sliding component to slide and reset on the arc-shaped support slide 30, the present invention also provides a second embodiment. The counterweight 43 is slidably disposed at the bottom of the rear sliding plate 42. A connecting plate 91 is provided at the bottom of the rear sliding plate 42. An expansion rod 90 is provided on the outer wall of the connecting plate 91 close to the counterweight 43, and the top extension end of the expansion rod 90 is connected to the side wall of the counterweight 43 so that the expansion rod 90 can push the counterweight 43 to move. When a steel arch is placed on the current sliding plate 40 for sliding, the expansion rod 90 pushes the counterweight 43 away from the connecting plate 91. When the current sliding plate 40 resets, the expansion rod 90 pulls the counterweight 43 close to the connecting plate 91, thereby balancing the center of gravity of the front sliding plate 40 and the rear sliding plate 42, so as to facilitate the better reset of the sliding component under its own gravity and ensure the installation efficiency.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present invention.

[0054] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0055] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as a limitation of the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and deformations to the above embodiments within the scope of the present invention.

Claims

1. A tunnel construction anti-collapse support device, characterized in that, Comprising: A Y-shaped support frame, the height of which can be adjusted up and down; Two arc-shaped support sliders (30), symmetrically arranged. The two arc-shaped support sliders (30) are respectively hinged at both ends of the top of the Y-shaped support frame, and the two arc-shaped support sliders (30) can be spliced into an arched support slider. An arc-shaped chute (31) is provided on the outer arc surface of the arc-shaped support slider (30), and the arc-shaped chute (31) is used for the conveying and rapid splicing of steel arch frames; A sliding component, slidably arranged inside the arc-shaped chute (31), and the sliding component is used for conveying the steel arch frame to the installation position for sequential splicing; A cable component, rotatably arranged on the Y-shaped support frame, and the cable component is in transmission connection with the sliding component, so that the cable component can drive the two sliding components to move in the opposite direction along the arc-shaped support slider (30); Supports (20) are arranged on both sides of the Y-shaped support frame, and a support plate (21) is arranged on the support (20). The support plate (21) is used for supporting the bottom end of the arc-shaped support slider (30), and the support plate (21) can adjust the height in the up and down direction and realize the movement adjustment in the horizontal direction; Arc-shaped guide grooves one (32) are respectively provided on the opposite side walls inside the arc-shaped chute (31), and an arc-shaped guide groove two (33) is provided on the bottom wall inside the arc-shaped chute (31). The arc-shaped guide groove one (32) and the arc-shaped guide groove two (33) are in sliding fit with the sliding component to ensure that the sliding component moves stably along the arc-shaped chute (31) on the arc-shaped support slider (30); The sliding component includes: a front sliding plate (40), a rear sliding plate (42) and a counterweight block (43). The front sliding plate (40) and the rear sliding plate (42) are connected, and the connection part between the two is located inside the arc-shaped guide groove two (33). Guide blocks (41) are arranged on two opposite side walls of the front sliding plate (40), and the guide blocks (41) are in sliding fit with the arc-shaped guide groove one (32), so that the front sliding plate (40) and the rear sliding plate (42) can move stably along the arc-shaped chute (31). The counterweight block (43) is arranged at the bottom of the rear sliding plate (42).

2. The anti-collapse support device for tunnel construction according to claim 1, characterized in that, A group of fixing plates (60) are arranged on the inner arc surface of the arc-shaped support slider (30). Each group of fixing plates (60) has two, and the two fixing plates (60) are symmetrically arranged. Connecting rods (61) are arranged on the opposite side walls of the fixing plates (60), and the two ends of the top of the Y-shaped support frame are respectively hinged to the connecting rods (61) on the two arc-shaped support sliders (30).

3. The anti-collapse support device for tunnel construction according to claim 2, characterized in that, The Y-shaped support frame includes: a base (11), a sliding sleeve (13), and two support rods (14). The base (11) is located on the ground. The support rod (10) is arranged along the axial direction of the base (11), and a motor is installed inside the base (11). The output end of the motor is drivingly connected to the bottom end of the support rod (10). A top plate (16) is provided at the top of the support rod (10). A threaded groove (15) is formed on the outer peripheral surface of the support rod (10), and the threaded groove (15) is only formed in the upper half of the support rod (10). The lower half of the support rod (10) has a smooth outer peripheral surface. The sliding sleeve (13) is sleeved on the outer peripheral surface of the support rod (10), and the inner ring surface of the sliding sleeve (13) is in threaded cooperation with the threaded groove (15). The two support rods (14) are symmetrically arranged on the outer peripheral surface of the sliding sleeve (13). The top end of the support rod (14) is hinged to the inner arc surface of the arc-shaped support slide (30), and the two support rods (14) are arranged in a Y shape.

4. A tunnel construction anti-collapse support device according to claim 3, characterized in that, The cable assembly includes: a rotating cylinder (50), a first winding wheel (51), and a second winding wheel (52). The rotating cylinder (50) is rotatably arranged on the top surface of the top plate (16). The first winding wheel (51) and the second winding wheel (52) are sleeved on the outer peripheral surface of the rotating cylinder (50), and the second winding wheel (52) is located above the first winding wheel (51). There is a gap between the first winding wheel (51) and the second winding wheel (52). Cables (53) are wound around both the first winding wheel (51) and the second winding wheel (52).

5. The anti-collapse support device for tunnel construction according to claim 4, characterized in that, A pull ring (44) is provided at the top of the rear sliding plate (42). The cables (53) on the first winding wheel (51) and the second winding wheel (52) are respectively connected to the corresponding pull rings (44). A runner (54) is provided on the outer peripheral surface of the connecting rod (61), and the runner (54) is located on one side of the hinge. The cables (53) on the first winding wheel (51) and the second winding wheel (52) are respectively connected to the pull ring (44) through the corresponding runners (54).

6. The anti-collapse support device for tunnel construction according to claim 5, characterized in that, Adjusting frames one (27) are provided on both sides of the support (20). The adjusting frames one (27) are in the shape of concave brackets in the width direction of the support (20). A driving motor one (22) is provided on the outer wall of one side of the adjusting frame one (27). A first lead screw (23) is provided at the output end of the driving motor one (22), and the adjusting frame one (27) supports the first lead screw (23). A plurality of guide rods one (28) are provided on the side wall opposite to the concave surface of the adjusting frame one (27), and the guide rods one (28) are arranged along the width direction of the support (20). The guide rods one (28) are distributed above and below the first lead screw (23). An adjusting frame two (24) is provided on the adjusting frame one (27), and the first lead screw (23) and the guide rods one (28) penetrate through the adjusting frame two (24).

7. The anti-collapse support device for tunnel construction according to claim 6, characterized in that, A driving motor two (25) is arranged at the top of the adjusting frame two (24). A second lead screw (26) is arranged at the output end of the driving motor two (25). An adjusting block (70) is arranged on the outer peripheral surface of the second lead screw (26). The adjusting frame two (24) is also in the shape of a concave bracket. Guide rods two (29) are arranged on the side walls of the adjusting frame two (24) opposite to the concave surface. The guide rods two (29) penetrate through the adjusting block (70) to play a role in stably guiding the adjusting block (70). The support plate (21) is connected to the opposite side walls of the adjusting blocks (70) on the two adjusting frames one (27).

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