Anti-collapse supporting device for tunnel construction

Abstract

The invention relates to the technical field of tunnel supporting devices, and particularly discloses a tunnel construction anti-collapse supporting device which comprises a Y-shaped supporting frame. The two arc-shaped supporting sliding frames are symmetrically arranged, the two arc-shaped supporting sliding frames are hinged to the two ends of the top of the Y-shaped supporting frame respectively, arc-shaped sliding grooves are formed in the outer arc surfaces of the arc-shaped supporting sliding frames, the sliding assemblies are arranged in the arc-shaped sliding grooves in a sliding mode, and the pull rope assemblies are rotationally arranged on the Y-shaped supporting frame and are in transmission connection with the sliding assemblies; supports are arranged on the two sides of the Y-shaped supporting frame, and supporting plates are arranged on the supports. According to the anti-collapse supporting device for tunnel construction, the steel arches can be quickly spliced, so that the risk of high-altitude operation of workers is reduced, meanwhile, the working intensity of the workers is relieved, the mounting efficiency of the whole tunnel support is improved, and the risk of tunnel collapse is reduced.

Description

Technical Field

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

[0002] The anti-collapse support device for tunnel construction is a key equipment used to support the surrounding rock and prevent collapse during tunnel excavation. It dynamically adjusts the support structure such as hydraulic lifting columns to fit the curvature of the tunnel vault, reduce the stress concentration caused by gaps, and combines anchor rods, steel arch frames and other components to form a multi-layer reinforcement system to enhance the overall stability of the surrounding rock. This device can reduce the risk of landslides, ensure personnel safety and construction efficiency, and is suitable for tunnel projects under complex geological conditions.

[0003] A Chinese patent with announcement number CN208650862U discloses an anti-collapse support device for tunnel construction, including an embedded base, support columns are symmetrically arranged on the left and right sides of the top of the embedded base through anchor bolts, side wall support plates are arranged on the outside of the two groups of support columns, the inner wall of the side wall support plate and the support column are fixedly supported by the side wall connecting rod, a load-bearing arch plate is arranged directly above the embedded base, the load-bearing arch plate includes an arc-shaped main board, a mounting ear seat, a mounting platform and a circular limit groove, a thin hydraulic jack is fixedly installed on the top of the support column, a piston rod and a heavy-loaded spring are connected between the two groups of mounting platforms of the load-bearing arch plate, a top support plate is fixedly arranged on the top of the inner cavity of the tunnel through anchor rods, and a pre-tightening connection assembly is arranged between the top support plate and the arc-shaped main board. The present application provides an anti-collapse support device for tunnel construction with complete force conduction and higher safety factor.

[0004] The above patent document is provided with a top support plate fixed by anchor rods, and a pre-tightening connection assembly is provided between the top support plate and the arc-shaped main board to improve the safety factor. However, when installing the support plate arc-shaped main board, manual high-altitude work is still required, and manual installation and splicing are required, which increases the workload of manual labor. At the same time, the risk of workers splicing steel arch frames at high altitudes is high, and safety accidents are prone to occur. Summary of the invention

[0005] The present invention provides a tunnel construction anti-collapse support device, aiming to solve the technical problems in the related technology that manual installation and splicing are required, resulting in increased manual workload and a high risk of workers splicing steel arch frames at high altitudes, which is prone to safety accidents.

[0006] A tunnel construction anti-collapse support device of the present invention comprises: Y-shaped support frame, the height of the Y-shaped support frame can be adjusted up and down; Two arc-shaped support slides are symmetrically arranged, and the two arc-shaped support slides are respectively hinged at the two ends of the top of the Y-shaped support frame, and the two arc-shaped support slides can be spliced ​​into an arched support slide. The outer arc surface of the arc-shaped support slide is provided with an arc-shaped slide groove, and the arc-shaped slide groove is used for conveying and quickly splicing the steel arch frame; The sliding assembly is slidably arranged inside the arc-shaped slideway, and the sliding assembly is used to transport the steel arch frame to the installation position for sequential splicing; A pull rope assembly is rotatably arranged on the Y-shaped support frame, and the pull rope assembly is transmission-connected with the sliding assembly so that the pull rope assembly can drive the two sliding assemblies to move in opposite directions along the arc-shaped support slide frame; Supports are arranged on both sides of the Y-shaped support frame, and support plates are arranged on the supports. The support plates are used to support the bottom end of the arc-shaped support slide, and the support plates can adjust the up and down height directions and the horizontal direction movement.

[0007] Preferably, an arc guide groove 1 is opened on the opposite side walls inside the arc slide groove, and an arc guide groove 2 is opened on the bottom wall inside the arc slide groove. Arc guide groove 1 and arc guide groove 2 slide in cooperation with the sliding assembly to ensure that the sliding assembly moves stably along the arc slide groove on the arc support slide.

[0008] Preferably, a group of fixing plates are provided on the inner curved surface of the arc-shaped support slide, each group of fixing plates consists of two fixing plates, and the two fixing plates are symmetrically arranged, connecting rods are provided 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 slides.

[0009] Preferably, the sliding assembly 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 between the two is located inside the arc guide groove 2. Guide blocks are provided on the two opposite side walls of the front sliding plate, and the guide blocks are slidably matched with the arc guide groove 1 so that the front sliding plate and the rear sliding plate can move stably along the arc guide groove, and the counterweight block is arranged at the bottom of the rear sliding plate.

[0010] 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 transmission-connected to the bottom end of the support rod, a top plate is arranged on the top of the support rod, a threaded groove is opened on the outer peripheral surface of the support rod, and the threaded groove is only opened in the upper half of the support rod, and the lower half is a smooth outer peripheral surface, the sliding sleeve is sleeved on the outer peripheral surface of the support rod, and the inner annular surface of the sliding sleeve is threadedly matched with the threaded groove, the support rod is symmetrically arranged on the outer peripheral surface of the sliding sleeve, the top end of the support rod is hinged to the inner arc surface of the arc-shaped support slide, and the two support rods are arranged in a Y shape.

[0011] Preferably, the pull rope assembly includes: a rotating drum, a first winding wheel and a second winding wheel, the rotating drum 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 circumferential surface of the rotating drum, and the second winding wheel is located above the first winding wheel, there is a gap between the first winding wheel and the second winding wheel, and the first winding wheel and the second winding wheel are both wrapped with a pull rope.

[0012] Preferably, a pull ring is provided on the top of the rear sliding plate, and the pull ropes 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, and the pull ropes on the first winding wheel and the second winding wheel are respectively connected to the pull rings through the corresponding rotating wheels.

[0013] Preferably, an adjustment frame 1 is provided on both sides of the support, and the adjustment frame 1 is in a concave bracket shape in the width direction of the support, a driving motor 1 is provided on the outer wall of one side of the adjustment frame 1, a first screw rod is provided at the output end of the driving motor 1, and the adjustment frame 1 supports the first screw rod, a plurality of guide rods 1 are provided on the side walls opposite to the concave surface of the adjustment frame 1, and the guide rods 1 are provided along the width direction of the support, and the guide rods 1 are distributed on both sides of the first screw rod up and down, an adjustment frame 2 is provided on the adjustment frame 1, and the first screw rod and the guide rod 1 pass through the adjustment frame 2.

[0014] Preferably, a second driving motor is provided on the top of the second adjusting frame, a second screw is provided at the output end of the second driving motor, an adjusting block is provided on the outer peripheral surface of the second screw, and the second adjusting frame is also in the shape of a concave bracket, and a second guide rod is provided on the side wall opposite to the concave surface of the second adjusting frame, and the second guide rod passes through the adjusting block to provide stable guiding for the adjusting block, and the support plate is connected to the opposite side walls of the adjusting blocks on the two adjusting frames one.

[0015] The beneficial effects of the present invention are: 1. Through the linkage design of the sliding component arc support slide and the pull rope component, the automatic transportation of the steel arch frame along the arc slide is realized. This mechanical transmission method replaces the traditional manual handling, reduces the risk of high-altitude operations, and improves the efficiency of steel arch splicing.

[0016] 2. The two arc-shaped support slides are spliced ​​into an arch structure through a hinged design to form a semicircular support slide, which is convenient for transportation and on-site assembly, and improves the efficiency of the entire tunnel support. 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 meet the requirements of different tunnel sections.

[0017] 3. The driving component controls the forward and reverse rotation of the rotating drum through the motor to realize the retraction and release cycle of the pull rope. After the steel arch frame is transported to the top, the counterweight block drives the sliding plate to automatically reset, reducing manual intervention and improving continuous operation capabilities.

[0018] 4. The support base is adjusted in multiple dimensions. The support plate can achieve precise adjustment of horizontal position and height through the screw rod and guide rod mechanism, quickly adapt to the uneven terrain at the bottom of the tunnel, enhance the terrain adaptability of the device, and shorten the support preparation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the arc chute structure of the present invention.

[0021] Figure 3 It is a schematic diagram of the structure of the arc-shaped supporting slide frame of the present invention.

[0022] Figure 4 It is a schematic diagram of the rear sliding plate structure of the present invention.

[0023] Figure 5 It is a schematic diagram of the support rod structure of the present invention.

[0024] Figure 6 It is a schematic diagram of the rotating drum structure of the present invention.

[0025] Figure 7 It is a schematic diagram of the front sliding plate structure of the present invention.

[0026] Figure 8 It is a schematic diagram of the pull rope structure of the present invention.

[0027] Fig. 9 It is a schematic diagram of the support structure of the present invention.

[0028] Fig.10 It is a structural schematic diagram of the second adjusting frame of the present invention.

[0029] Fig.11 It is a schematic diagram of the telescopic rod structure of the present invention.

[0030] Reference numerals: 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. Drive motor one; 23. First screw rod; 24. Adjustment frame two; 25. Drive motor two; 26. Second screw rod; 27. Adjustment frame one; 28. Guide rod one; 29. ​​Guide rod two; 30. Arc support slide; 31. Arc Slide groove; 32, arc guide groove one; 33, arc guide groove two; 40, front sliding plate; 41, guide block; 42, rear sliding plate; 43, counterweight block; 44, pull ring; 50, rotating cylinder; 51, first winding wheel; 52, second winding wheel; 53, pull rope; 54, rotating wheel; 55, gear ring; 56, gear; 60, fixing plate; 61, connecting rod; 70, adjusting block; 90, telescopic rod; 91, connecting plate. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0032] like Figures 1 to 11 As shown, a tunnel construction anti-collapse support device of the present invention comprises: a Y-shaped support frame, the height of the Y-shaped support frame can be adjusted up and down, the two top positions of the Y-shaped support frame are respectively hinged with arc-shaped support slides 30, and the two arc-shaped support slides 30 can be spliced ​​into an arch support slide, each arc-shaped support slide 30 is provided with a sliding assembly, the sliding assembly is used to transport the supporting I-beams to the installation position for sequential splicing, the Y-shaped support frame is provided with a pull rope assembly, and the pull rope assembly is transmission-connected with the sliding assembly so that the pull rope assembly can drive the two sliding assemblies to move in the opposite direction along the arc-shaped support slide 30, supports 20 are provided on both sides of the Y-shaped support frame, and support plates 21 are provided on the supports 20, and the support plates 21 can adjust the up and down height and horizontal position so that the support plates 21 can be used to quickly support the arc-shaped support slide 30.

[0033] When it is necessary to support the tunnel, the Y-shaped support frame and the arc-shaped support slide 30 are manually erected, and the two ends of the bottom of the two arc-shaped support slides 30 are manually pushed so that the two end surfaces at the top of the two arc-shaped support slides 30 stop against each other, so that the two arc-shaped support slides 30 can be spliced ​​into a semicircular support slide. Then the support 20 is moved to the two ends of the bottom of the two arc-shaped support slides 30, and the support plate 21 can be quickly adjusted in all directions so that the top surface of the support plate 21 stops against the bottom surfaces of the two arc-shaped support slides 30 and provides stable support thereto. The worker places the steel arch frame to be spliced ​​in the conveying trough of the two arc-shaped support slides 30, and then the pull rope assembly pulls the sliding assembly to move. The movement of the sliding assembly drives the steel arch frame to move from the bottom end surface of the arc-shaped support slide 30 to the top end surface, and splices them in turn, thereby reducing the risk of workers working at high altitudes, avoiding the work intensity of manual splicing of steel arch frames, improving the installation efficiency of the entire tunnel support, and reducing the risk of tunnel collapse.

[0034] like Figures 1 to 7 As shown, the support slide is arched as a whole and is composed of two arc-shaped support slides 30. 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. The outer arc surface of each arc-shaped support slide 30 is provided with an arc-shaped slide groove 31. The arc-shaped slide groove 31 is used to place the steel arch frame, and the arc-shaped slide groove 31 can guide the steel arch frame. The opposite side walls inside the arc-shaped slide groove 31 are provided with an arc-shaped guide groove 1 32, and the bottom wall inside the arc-shaped slide groove 31 is provided with an arc-shaped guide groove 2 33. The arc-shaped guide groove 1 32 and the arc-shaped guide groove 2 33 are slidably matched with the sliding component to ensure that the sliding component moves stably on the arc-shaped support slide 30 along the arc-shaped slide groove 31, thereby realizing stable transportation and splicing of the steel arch frame and improving the efficiency of tunnel support.

[0035] A group of fixing plates 60 are arranged on the inner curved surfaces of the two arc-shaped support slides 30, each group of fixing plates 60 has two fixing plates 60, and the two fixing plates 60 are symmetrically arranged, and 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 slides 30, so that when the two arc-shaped support slides 30 are spliced, the two arc-shaped support slides 30 can rotate relative to each other with the connecting rods 61 as the fulcrum to be spliced ​​into an arched support slide.

[0036] like Figures 3 to 7 As 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 between the two is located inside the arc-shaped guide groove 33 as shown in FIG. Figure 7As shown, guide blocks 41 are provided on the two opposite side walls of the front sliding plate 40, and the guide blocks 41 slide in cooperation with the 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 groove 31, and 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 overturning during sliding.

[0037] like Figures 3 to 8 As shown, the pull rope assembly includes: a rotating drum 50, a first winding wheel 51 and a second winding wheel 52, the rotating drum 50 is rotatably arranged 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 circumference of the rotating drum 50, and the second winding wheel 52 is located above the first winding wheel 51, and there is a gap between the first winding wheel 51 and the second winding wheel 52, the first winding wheel 51 and the second winding wheel 52 are both wound with a pull rope 53, and a pull ring 44 is provided on the top of the rear sliding plate 42, and the first winding wheel 51 and the second winding wheel 52 are respectively wound with a pull rope 53. The pull ropes 53 on the first and second winding wheels 51 and 52 are respectively connected to the corresponding pull rings 44, and a rotating wheel 54 is provided on the outer circumference of the connecting rod 61, and the rotating wheel 54 is located on one side of the hinge, thereby avoiding interference between the pull rope 53 and the hinge, and the pull ropes 53 on the first and second winding wheels 51 and 52 are respectively connected to the pull ring 44 through the corresponding rotating wheels 54 to ensure stability during the pulling process, and a driving assembly is provided inside the rotating cylinder 50, and the driving assembly can drive the rotating cylinder 50 to rotate.

[0038] The first and second winding wheels 51 and 52 are driven to rotate, and the first and second winding wheels 51 and 52 are driven to rotate and reel in the corresponding pull ropes 53, so that the pull ropes 53 pull the pull rings 44 to move the rear sliding plate 42 and the front sliding plate 40, so that the front sliding plate 40 drives the steel arch frame to move from the two 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 turn, and bolted manually. After the steel arch frame is transported to the top, the drive assembly will drive the rotating drum 50 to rotate in the opposite direction to relax the pull rope 53, causing the counterweight block 43, the front sliding plate 40 and the rear sliding plate 42 to move downward along the arc sliding groove 31 and reset under their own gravity, thereby improving the overall installation efficiency and reducing the risk of workers working at height.

[0039] like Figures 5 and 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.

[0040] 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.

[0041] 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.

[0042] like Figures 9 and 10As shown, an adjustment frame 27 is provided on both sides of the support 20, and the adjustment frame 27 is in a concave bracket shape in the width direction of the support 20. A driving motor 22 is provided on the outer wall of one side of the adjustment frame 27, and a first screw rod 23 is provided at the output end of the driving motor 22, and the adjustment frame 27 supports the first screw rod 23. A plurality of guide rods 28 are provided on the side walls opposite to the concave surface of the adjustment frame 27, and the guide rods 28 are provided along the width direction of the support 20, and the guide rods 28 are distributed up and down on both sides of the first screw rod 23. The adjustment frame 27 is provided with an adjustment frame 27. The second adjusting frame 24, and the first screw rod 23 and the guide rod 1 28 pass through the adjusting frame 24, the top of the adjusting frame 24 is provided with a driving motor 25, the output end of the driving motor 25 is provided with a second screw rod 26, the outer peripheral surface of the second screw rod 26 is provided with an adjusting block 70, and the adjusting frame 24 is also in a concave bracket shape, and the side wall opposite to the concave surface of the adjusting frame 24 is provided with a guide rod 29, the guide rod 29 passes through the adjusting block 70, and is used to play a stabilizing guiding role for the adjusting block 70, and the adjusting blocks 70 on the two adjusting frames 1 27 are connected to the opposite side walls thereof with support plates 21.

[0043] In order to further quickly complete the splicing support of the arc-shaped support slide 30, it is necessary to quickly support the bottom end of the arc-shaped support slide 30. Due to the uneven ground inside the tunnel, when the arc-shaped support slide 30 is spliced ​​into an arch shape, the support 20 is moved to the two ends of the bottom of the arc-shaped support slide 30 respectively, and the driving motor 1 22 drives the first screw rod 23 to rotate. The rotation of the first screw rod 23 can drive the adjustment frame 24 to move and adjust along the width direction of the support 20. The movement of the adjustment frame 24 drives the support plate 21 to move and adjust along the width direction of the support 20. The driving motor 25 The second screw rod 26 is driven to rotate, and the rotation of the second screw rod 26 drives the adjustment block 70 to move up and down, so that the adjustment block 70 drives the support plate 21 to adjust up and down, thereby realizing all-round and rapid adjustment of the support plate 21 on the support 20, thereby improving the construction speed of the entire arc-shaped support slide 30 and improving 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 so that the support plate 21 can stably support the arc-shaped support slide 30, thereby ensuring the stability of the steel arch frame during the movement and splicing of the arc-shaped support slide 30.

[0044] It should be noted that after the arc-shaped support slide 30 is spliced ​​with the steel arch frame, it can be used as a tunnel support device to support the tunnel. It only needs to disassemble the support 20 and the Y-shaped support frame for next use, so that the arc-shaped support slide 30 and the steel arch frame can jointly support and protect the tunnel, thereby improving the support effect.

[0045] like Fig.11As shown, in order to better allow the sliding assembly to slide and reset on the arc-shaped support slide 30, the present invention also provides a second embodiment, in which the counterweight block 43 is slidably arranged at the bottom of the rear sliding plate 42, and a connecting plate 91 is arranged at the bottom of the rear sliding plate 42. A telescopic rod 90 is arranged on the outer wall of the connecting plate 91 close to the counterweight block 43, and the top extended end of the telescopic rod 90 is connected to the side wall of the counterweight block 43, so that the telescopic rod 90 can push the counterweight block 43 to move. When the steel arch frame is placed on the front sliding plate 40 for sliding, the telescopic rod 90 pushes the counterweight block 43 away from the connecting plate 91. When the front sliding plate 40 is reset, the telescopic rod 90 pulls the counterweight block 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 that the sliding assembly can be better reset under its own gravity, thereby ensuring the efficiency of installation.

[0046] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A tunnel construction anti-collapse support device, characterized in that: include: Y-shaped support frame, the height of the Y-shaped support frame can be adjusted up and down; Two arc-shaped support slides (30) are symmetrically arranged, the two arc-shaped support slides (30) are respectively hinged at two ends of the top of the Y-shaped support frame, and the two arc-shaped support slides (30) can be spliced ​​into an arch-shaped support slide, and the outer arc surface of the arc-shaped support slide (30) is provided with an arc-shaped slide groove (31), and the arc-shaped slide groove (31) is used for conveying and quickly splicing the steel arch frame; A sliding assembly is slidably arranged inside the arc-shaped slide groove (31), and the sliding assembly is used to transport the steel arch frame to the installation position for sequential splicing; A pull rope assembly is rotatably arranged on the Y-shaped support frame, and the pull rope assembly is transmission-connected with the sliding assembly so that the pull rope assembly can drive the two sliding assemblies to move in opposite directions along the arc-shaped support slide frame (30); Supports (20) are arranged on both sides of the Y-shaped support frame, and support plates (21) are arranged on the support seats (20). The support plates (21) are used to support the bottom end of the arc-shaped support slide (30), and the support plates (21) can be adjusted in the vertical height direction and in the horizontal direction.

2. A tunnel construction anti-collapse support device according to claim 1, characterized in that: The arc-shaped slide groove (31) has an arc-shaped guide groove 1 (32) formed on opposite side walls thereof, and an arc-shaped guide groove 2 (33) formed on the bottom wall thereof. The arc-shaped guide groove 1 (32) and the arc-shaped guide groove 2 (33) are slidably matched with the sliding assembly to ensure that the sliding assembly moves stably on the arc-shaped support slide frame (30) along the arc-shaped slide groove (31).

3. A tunnel construction anti-collapse support device according to claim 2, characterized in that: A group of fixing plates (60) are arranged on the inner curved surface of the arc-shaped support slide (30), each group of fixing plates (60) has two fixing plates (60), and the two fixing plates (60) are symmetrically arranged, connecting rods (61) are arranged on 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).

4. The tunnel construction anti-collapse support device according to claim 3, characterized in that: The sliding assembly comprises: 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 between the two is located inside the arc-shaped guide groove (33); guide blocks (41) are arranged on two opposite side walls of the front sliding plate (40), and the guide blocks (41) are slidably matched with the 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 guide groove (31); and the counterweight (43) is arranged at the bottom of the rear sliding plate (42).

5. The tunnel construction anti-collapse support device according to claim 4, characterized in that: The Y-shaped support frame comprises: 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); a motor is installed inside the base (11); the output end of the motor is transmission-connected to 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 provided on the outer peripheral surface of the support rod (10); the thread groove (15) is only provided in the upper half of the support rod (10); 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); the inner annular surface of the sliding sleeve (13) is threadably matched with the thread groove (15); the support rod (14) is 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.

6. The tunnel construction anti-collapse support device according to claim 5, characterized in that: The pull rope assembly comprises: a rotating drum (50), a first reel (51) and a second reel (52); the rotating drum (50) is rotatably arranged on the top surface of the top plate (16); the first reel (51) and the second reel (52) are sleeved on the outer peripheral surface of the rotating drum (50); the second reel (52) is located above the first reel (51); there is a gap between the first reel (51) and the second reel (52); and the first reel (51) and the second reel (52) are both wound with a pull rope (53).

7. The tunnel construction anti-collapse support device according to claim 6, characterized in that: A pull ring (44) is provided at the top of the rear sliding plate (42), and the pull ropes (53) on the first winding wheel (51) and the second winding wheel (52) are respectively connected to the corresponding pull rings (44), and 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, and the pull ropes (53) on the first winding wheel (51) and the second winding wheel (52) are respectively connected to the pull rings (44) through the corresponding rotating wheels (54).

8. The tunnel construction anti-collapse support device according to claim 7, characterized in that: An adjustment frame (27) is provided on both sides of the support (20), and the adjustment frame (27) is in a concave bracket shape in the width direction of the support (20). A driving motor (22) is provided on an outer wall of one side of the adjustment frame (27), and a first screw rod (23) is provided at the output end of the driving motor (22), and the adjustment frame (27) plays a supporting role for the first screw rod (23). A plurality of guide rods (28) are provided on the side walls opposite to the concave surface of the adjustment frame (27), and the guide rods (28) are provided along the width direction of the support (20), and the guide rods (28) are distributed up and down on both sides of the first screw rod (23). An adjustment frame (24) is provided on the adjustment frame (27), and the first screw rod (23) and the guide rods (28) penetrate the adjustment frame (24).

9. The tunnel construction anti-collapse support device according to claim 8, characterized in that: A second drive motor (25) is arranged on the top of the second adjustment frame (24), a second screw rod (26) is arranged at the output end of the second drive motor (25), an adjustment block (70) is arranged on the outer peripheral surface of the second screw rod (26), and the second adjustment frame (24) is also in a concave bracket shape, and a second guide rod (29) is arranged on the side wall opposite to the concave surface of the second adjustment frame (24), the second guide rod (29) penetrates the adjustment block (70) and is used to play a stabilizing and guiding role for the adjustment block (70), and the support plate (21) is connected to the opposite side walls of the adjustment blocks (70) on the two first adjustment frames (27).

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