Self-adaptive pipe shed supporting system for tunnel construction

Abstract

The invention discloses a self-adaptive pipe shed supporting system for tunnel construction, and relates to the technical field of tunnel supporting systems. The self-adaptive pipe shed supporting system for tunnel construction comprises a bottom seat, the universal wheels are mounted at the bottom included angles of the bottom seat; the self-adaptive tunnel supporting structures are mounted on the left and right sides of the top of the bottom seat; the supporting plate is installed at the center of the top of the self-adaptive tunnel supporting structure, the supporting plate abuts against the inner top of a tunnel and is attached to the inner top of the tunnel, and the self-adaptive tunnel supporting structure comprises detachable supporting foundations installed on the left side and the right side of the top of a bottom base; and the double-gear winding and unwinding assembly is mounted at the top of the detachable supporting foundation. According to the lifting rope winding device, it can be guaranteed that when the lifting rope is wound around the outer side of the winding roller, the lifting rope can be spirally wound around the outer side of the winding roller in a mutually-abutting mode, the problem that the lifting rope is stacked and wound around the same area of the outer side of the winding roller is solved, and safety is higher.

Description

Technical Field

[0001] This invention relates to the field of tunnel support system technology, specifically to an adaptive pipe roof support system for tunnel construction. Background Technology

[0002] Tunnel construction technology is an engineering technology system for the construction of long-span tunnels. Based on the New Austrian Tunneling Method (NATM), it achieves dynamic construction control through initial support methods such as rock bolts and shotcrete combined with the self-supporting capacity of the surrounding rock. During tunnel construction, pipe roofs are required. Pipe roofs are advanced support structures used in tunnel construction for weak surrounding rock, providing support for the tunnel.

[0003] When supporting pipe roofs in tunnels, existing support systems typically employ corresponding lifting structures to accommodate tunnels and pipe roofs of varying heights, as the height of the pipe roofs must match the excavated tunnel. Common lifting structures in these systems utilize rope hoisting for height adjustment. However, because rope winding and unwinding occur sequentially outside the winding drum, the wound ropes tend to accumulate in the same area, causing bulging and hindering subsequent unwinding. This compromises the safety of subsequent support system upgrades and adjustments. Summary of the Invention

[0004] The purpose of this invention is to provide an adaptive pipe roof support system for tunnel construction to solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: This invention provides an adaptive pipe roof support system for tunnel construction, comprising: a base; casters installed at the included angle of the bottom of the base; adaptive tunnel support structures installed on the left and right sides of the top of the base; and a support plate installed at the center of the top of the adaptive tunnel support structure, the support plate abutting against and conforming to the inner top of the tunnel. The adaptive tunnel support structure includes: a detachable support foundation installed on the left and right sides of the top of the base; a double-gear winding assembly installed on top of the detachable support foundation, with a hoisting rope wound around its outer side; an adaptive guide assembly abutting against the bottom of the hoisting rope and installed on the side of the detachable support foundation; and a lifting plate assembly connected to the hoisting rope and movably disposed inside the detachable support foundation. The top of the lifting plate assembly is fitted with a support plate by screws, and the support plate is positioned above the detachable support foundation.

[0006] As a preferred embodiment of the present invention, the detachable support base includes: a cage-like frame mounted on the left and right sides of the top of the bottom seat by screws; a vertical guide rail mounted inside the cage-like frame; and a sliding block slidably connected to the side of the vertical guide rail. The cage-like frames are provided in multiple ways, and adjacent cage-like frames are connected by screws.

[0007] As a preferred embodiment of the present invention, a gear winding and unwinding assembly is installed on the top of the cage-like frame located at the top, an adaptive guide assembly is installed on the inner side of the top of the cage-like frame located at the top, and a lifting plate assembly is installed on the inner side of the sliding block.

[0008] As a preferred embodiment of the present invention, the gear take-up and unwind assembly includes: a linear drive source mounted on one side of the top of the cage-type frame; a first gear connected to the output end of the linear drive source; a second gear meshing with the side of the first gear; a take-up roller connected to the second gear; and a support base rotatably connected to the take-up roller and mounted on the other side of the top of the cage-type frame by screws. The support base is located on the side of the linear drive source.

[0009] In a preferred embodiment of the present invention, two sets of hoisting ropes are wound around the outer side of the take-up roller, and an adaptive guide assembly is provided on the side of the take-up roller. Both the first gear and the second gear are provided in pairs.

[0010] As a preferred embodiment of the present invention, the adaptive guiding assembly includes: a spring connecting seat mounted on the inner side of the top of the cage-like frame; a straight rod mounted on the side of the spring connecting seat; an upper protrusion mounted on the top of the straight rod; a horizontal sliding seat slidably connected to the outer side of the straight rod via the upper protrusion; a rolling wheel movably connected to the outer side of the horizontal sliding seat; and an inner groove formed at the center of the outer side of the rolling wheel. The roller abuts against the hoisting rope through an internal groove.

[0011] As a preferred embodiment of the present invention, the lifting plate assembly includes: a connecting hook connected to the hoisting rope; a lower mounting plate connected to the connecting hook, the outer side of the lower mounting plate being mounted on the side of the sliding block; an oblique positioning rod mounted at the included angle on the left and right sides of the lower mounting plate; an upper support column mounted on the top center of the lower mounting plate by screws; a vertical support rod mounted on the top of the upper support column; side support rods mounted on the left and right sides of the upper support column; and a V-shaped reinforcing arm mounted between the upper support column and the side support rods. The tops of the side support rods and vertical support rods are fitted with support plates by screws.

[0012] In a preferred embodiment of the present invention, the upper support column is rotatably connected to a lower reinforcing arm extending to the outer side, and the left and right sides of the lower reinforcing arm are mounted on the sides of the vertical base. The vertical seat is mounted on the top of the lower mounting plate by screws.

[0013] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects: 1. In the adaptive pipe roof support system for tunnel construction, rolling guide rollers are installed at the bottom of the hoisting rope during winding and unwinding operations. This supports the hoisting rope during these operations, preventing swaying and deviation. Furthermore, the horizontal movement of the rolling rollers and horizontal sliding blocks outside the straight rod ensures that the hoisting rope winds in a spiral pattern around the outside of the winding roller, preventing it from accumulating and becoming entangled in the same area outside the winding roller, thus enhancing safety. It should be noted that the straight rod structure connected by the spring connecting seat can move to a certain extent when the hoisting rope is wound up and down, which reduces the problem of excessive friction and breakage of the hoisting rope due to the pulling mechanical force during the winding and unwinding operation. 2. In the adaptive pipe roof support system for tunnel construction, by setting rectangular and triangular support structures at the bottom of the support plates supporting the tunnel pipe roof, the gravity and compressive forces transmitted to the support plates can be distributed more evenly. This reduces the problem of local cracking or even overall cracking of the support plates due to uneven distribution of compressive forces and weight during tunnel support, resulting in higher safety. Simultaneously, the upper support columns supporting the rectangular and triangular support structures are installed on the top of the lower mounting plates via lower reinforcing arms installed on their outer sides, making the connection between the two more stable and robust, providing high strength support for the tunnel. 3. In the adaptive pipe roof support system for tunnel construction, by setting up multiple freely detachable cage-type frame structures, it is possible to ensure that the structure supporting the pipe roof can match the height of the pipe roof when supporting the pipe roof in the tunnel, thus meeting the requirements of pipe roof support for tunnels of different heights and having wider applicability. Attached Figure Description

[0014] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0015] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall main view of the present invention; Figure 3 This is a schematic diagram of the adaptive tunnel support structure of the present invention; Figure 4 This is the present invention. Figure 3 Enlarged structural diagram of region A in the middle; Figure 5 This is a structural schematic diagram of the gear winding and unwinding assembly and the lower mounting plate of the present invention; Figure 6 This is a schematic diagram of the connection between the hoisting rope and the adaptive guidance component of the present invention; Figure 7 This is a schematic diagram of the connection between the lifting plate assembly and the support plate of the present invention; Figure 8 This is a top-view structural diagram showing the connection between the lifting plate assembly and the support plate of the present invention; In the picture: 10. Base plate; 20. Casters; 30. Adaptive tunnel support structure; 301. Demountable support foundation; 302. Gear winding and unwinding assembly; 303. Hoisting rope; 304. Adaptive guidance assembly; 305. Lifting plate assembly; 3011, Cage-type frame; 3012, Vertical guide rail; 3013, Sliding block; 3021, Linear drive source; 3022, First gear; 3023, Second gear; 3024, Take-up roller; 3025, Support base; 3041, Spring connecting seat; 3042, Linear rod; 3043, Upper protrusion; 3044, Horizontal sliding seat; 3045, Rolling wheel; 3046, Inner groove; 3051. Connecting hook; 3052. Lower mounting plate; 3053. Angled positioning rod; 3054. Upper support column; 30541. Lower reinforcing arm; 30542. Vertical seat; 3055. Vertical support rod; 3056. Side support rod; 3057. V-shaped reinforcing arm; 40. Support plate components. Detailed Implementation

[0017] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0018] Please see Figures 1-8 The adaptive pipe roof support system for tunnel construction includes a base 10; casters 20 installed at the bottom corner of the base 10; adaptive tunnel support structures 30 installed on the left and right sides of the top of the base 10; and support plates 40 installed at the center of the top of the adaptive tunnel support structures 30. The support plates 40 abut against and fit against the inner top of the tunnel. The adaptive tunnel support structure 30 includes: detachable support foundations 301 installed on the left and right sides of the top of the base 10; and support plates 40 installed on the detachable support... A double-gear winding assembly 302 is located at the top of the foundation 301, with a hoisting rope 303 wound around its outer side; an adaptive guide assembly 304 is located at the bottom of the hoisting rope 303 and installed on the side of the detachable support foundation 301; and a lifting plate assembly 305 is connected to the hoisting rope 303 and movably disposed inside the detachable support foundation 301, wherein a support plate 40 is installed on the top of the lifting plate assembly 305 by screws, and the support plate 40 is disposed above the detachable support foundation 301.

[0019] The working principle described above is as follows: When supporting the pipe roof at the top of the tunnel, the support plate 40 can be moved to the front and rear sides of the pipe roof using the casters 20. Support plates 40 that match the pipe roof are used to ensure that the curvature of the support plate 40 and the pipe roof are consistent. Then, when the support plate 40 is moved to the bottom of the pipe roof, the double-gear winding assembly 302 is activated. This drives the hoisting rope 303 wound on the outside of the double-gear winding assembly 302 to wind and unwind, causing the lifting plate assembly 305 connected to the hoisting rope 303 to move up and down. The position and height of the support plate 40 installed on the top of the lifting plate assembly 305 are adjusted to ensure that the support plate 40 and the pipe roof are tightly fitted together, achieving stable support for the tunnel pipe roof.

[0020] It should be noted that during the winding and unwinding process of the hoisting rope 303, the adaptive guide component 304 can move horizontally and continuously roll in coordination with the winding and unwinding of the hoisting rope 303. On the one hand, it supports the hoisting rope 303, and on the other hand, it ensures that the hoisting rope 303 can be wound around the outside of the double gear winding and unwinding component 302 in sequence, so that the hoisting rope 303 will not pile up together, and the safety will be higher during subsequent unwinding.

[0021] For details, please refer to the following: Figure 3 The detachable support foundation 301 includes: a cage-type frame 3011 installed on the left and right sides of the top of the bottom seat 10 by screws; a vertical guide rail 3012 installed on the inner side of the cage-type frame 3011; and a sliding block 3013 slidably connected to the side of the vertical guide rail 3012. There are multiple cage-type frames 3011, and adjacent cage-type frames 3011 are connected by screws.

[0022] In this design, a gear winding and unwinding assembly 302 is installed on the top of the cage-like frame 3011 located at the top, an adaptive guide assembly 304 is installed on the inner side of the top of the cage-like frame 3011 located at the top, and a lifting plate assembly 305 is installed on the inner side of the sliding block 3013.

[0023] In the tunnel construction adaptive pipe roof support system of the present invention, multiple detachable and connected cage-type frames 3011 can be adjusted to adapt to the height of the pipe roof, ensuring that the height of the gear winding and unwinding assembly 302 meets the height requirements of the pipe roof. The design of the sliding block 3013 sliding outside the vertical guide rail 3012 ensures that when the lifting plate assembly 305 is moved up and down, its movement trajectory is vertical, making it less prone to deviation during lifting and unwinding.

[0024] For details, please refer to the following: Figure 4 and Figure 5 The gear take-up and unwind assembly 302 includes: a linear drive source 3021 mounted on one side of the top of the cage frame 3011; a first gear 3022 connected to the output end of the linear drive source 3021; ​​a second gear 3023 meshing with the side of the first gear 3022; a take-up roller 3024 connected to the second gear 3023; and a support 3025 rotatably connected to the take-up roller 3024 and mounted on the other side of the top of the cage frame 3011 by screws, wherein the support 3025 is disposed on the side of the linear drive source 3021.

[0025] In this design, two sets of hoisting ropes 303 are wound around the outer side of the winding roller 3024, and an adaptive guide assembly 304 is provided on the side of the winding roller 3024, wherein two of each of the first gear 3022 and the second gear 3023 are provided.

[0026] In the adaptive pipe roof support system for tunnel construction of the present invention, when the hoisting rope 303 is being wound up and unwound, the linear drive source 3021 is activated, driving the first gear 3022 connected to the outer side of the output end of the linear drive source 3021 to rotate. When the first gear 3022 rotates, the second gear 3023 meshing with it on its outer side rotates, thereby driving the winding roller 3024 connected to the second gear 3023 to rotate, thus performing the winding up and unwinding operation of the hoisting rope 303 on the outer side of the winding roller 3024.

[0027] For details, please refer to the following: Figure 5 and Figure 6 The adaptive guidance assembly 304 includes: a spring connecting seat 3041 mounted on the inner side of the top of the cage-type frame 3011; a straight rod 3042 mounted on the side of the spring connecting seat 3041; an upper protrusion 3043 mounted on the top of the straight rod 3042; a horizontal sliding seat 3044 slidably connected to the outer side of the straight rod 3042 via the upper protrusion 3043; a rolling wheel 3045 movably connected to the outer side of the horizontal sliding seat 3044; and an inner groove 3046 formed at the center of the outer side of the rolling wheel 3045, wherein the rolling wheel 3045 abuts against the hoisting rope 303 through the inner groove 3046 formed inside.

[0028] In the adaptive pipe roof support system for tunnel construction of the present invention, when the hoisting rope 303 is being wound up or unwound, the rolling wheel 3045 at its bottom provides support for the hoisting rope 303 in the winding and unwound state, ensuring the stability of the hoisting rope 303 during the winding and unwound movement. Simultaneously, since the hoisting ropes 303 are spirally arranged on the outside of the winding roller 3024, during the winding and unwound operation, the rolling wheel 3045 (horizontal sliding seat 3044) that contacts the hoisting rope 303 moves horizontally outside the straight rod 3042, guiding the hoisting rope 303 horizontally and ensuring that the hoisting rope 303 does not accumulate in the same area outside the winding roller 3024 during the winding and unwound operation.

[0029] For details, please refer to the following: Figure 7 and Figure 8The lifting plate assembly 305 includes: a connecting hook 3051 connected to the hoisting rope 303; a lower mounting plate 3052 connected to the connecting hook 3051, with the outer side of the lower mounting plate 3052 mounted on the side of the sliding block 3013; an oblique positioning rod 3053 mounted at the included angle on the left and right sides of the lower mounting plate 3052; an upper support column 3054 mounted at the top center of the lower mounting plate 3052 by screws; a vertical support rod 3055 mounted on the top of the upper support column 3054; side support rods 3056 mounted on the left and right sides of the upper support column 3054; and a V-shaped reinforcing arm 3057 mounted between the upper support column 3054 and the side support rods 3056, wherein the tops of the side support rods 3056 and the vertical support rods 3055 are fitted with support plates 40 by screws.

[0030] In this design, the upper support column 3054 is internally rotatably connected to a lower reinforcing arm 30541 extending to the outside. The left and right sides of the lower reinforcing arm 30541 are installed on the sides of the vertical seat 30542. The vertical seat 30542 is installed on the top of the lower mounting plate 3052 by screws.

[0031] In the tunnel construction adaptive pipe roof support system of the present invention, when the hoisting rope 303 is wound up or unwound, the connecting hook 3051 connected to the bottom of the hoisting rope 303 will drive the lower mounting plate 3052 to move up and down. The moving up and down of the lower mounting plate 3052 will cause the sliding block 3013 installed on its outer side to slide on the outer side of the vertical guide rail 3012, ensuring the stability of the moving up and down of the lower mounting plate 3052.

[0032] It should be noted that the triangular and rectangular support spaces formed by the vertical support rod 3055, side support rod 3056, and V-shaped reinforcing arm 3057 at the bottom of the support plate 40 can enhance the support strength at various points at the bottom of the support plate 40 (where it connects to the vertical support rod 3055 and side support rod 3056), thus providing stronger tunnel pipe roof support capabilities. The upper support column 3054 (used to connect the vertical support rod 3055 and side support rod 3056) in the vertical direction can be installed on top of the lower mounting plate 3052 via the lower reinforcing arm 30541 and vertical seat 30542 installed inside it. The triangular seat structure ensures the stability and firmness of the connection between the upper support column 3054 and the lower mounting plate 3052, preventing the upper support column 3054 from shifting or breaking.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

[0034] The terms “center,” “longitudinal,” “lateral,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention.

[0035] Therefore, any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this invention, based on the technical solution and inventive concept of this invention, should be covered within the protection scope of this invention.

Claims

1. An adaptive pipe roof support system for tunnel construction, characterized in that, include: Bottom seat (10); casters (20) installed at the bottom corner of the bottom seat (10); adaptive tunnel support structures (30) installed on the left and right sides of the top of the bottom seat (10); support plate (40) installed at the center of the top of the adaptive tunnel support structure (30), the support plate (40) abutting against the inner top of the tunnel and fitting against the inner top of the tunnel. The adaptive tunnel support structure (30) includes: a detachable support base (301) installed on the left and right sides of the top of the bottom seat (10); a double gear winding assembly (302) installed on the top of the detachable support base (301), with a hoisting rope (303) wound around the outer side of the gear winding assembly (302); an adaptive guide assembly (304) abutting against the bottom of the hoisting rope (303) and installed on the side of the detachable support base (301); and a lifting plate assembly (305) connected to the hoisting rope (303) and movably arranged inside the detachable support base (301). The top of the lifting plate assembly (305) is fitted with a support plate (40) by screws, and the support plate (40) is positioned above the detachable support foundation (301).

2. The tunnel construction adaptive pipe roof support system according to claim 1, characterized in that: The detachable support base (301) includes: a cage-like frame (3011) installed on the left and right sides of the top of the bottom seat (10) by screws; a vertical guide rail (3012) installed on the inner side of the cage-like frame (3011); and a sliding block (3013) slidably connected to the side of the vertical guide rail (3012). The cage-type frame (3011) is provided in multiple ways, and two adjacent cage-type frames (3011) are connected by screws.

3. The tunnel construction adaptive pipe roof support system according to claim 2, characterized in that: A gear winding and unwinding assembly (302) is installed on the top of the cage-like frame (3011) located at the top, an adaptive guide assembly (304) is installed on the inner side of the top of the cage-like frame (3011) located at the top, and a lifting plate assembly (305) is installed on the inner side of the sliding block (3013).

4. The tunnel construction adaptive pipe roof support system according to claim 2, characterized in that: The gear take-up and unwind assembly (302) includes: a linear drive source (3021) mounted on one side of the top of the cage frame (3011); a first gear (3022) connected to the output end of the linear drive source (3021); a second gear (3023) meshing with the side of the first gear (3022); a take-up roller (3024) connected to the second gear (3023); and a support base (3025) rotatably connected to the take-up roller (3024) and mounted on the other side of the top of the cage frame (3011) by screws. The support base (3025) is located on the side of the linear drive source (3021).

5. The tunnel construction adaptive pipe roof support system according to claim 4, characterized in that: Two sets of hoisting ropes (303) are wound around the outer side of the winding roller (3024), and an adaptive guide assembly (304) is provided on the side of the winding roller (3024). There are two of each of the first gear (3022) and the second gear (3023).

6. The tunnel construction adaptive pipe roof support system according to claim 5, characterized in that: The adaptive guidance assembly (304) includes: a spring connecting seat (3041) installed on the inner side of the top of the cage-type frame (3011); a straight rod (3042) installed on the side of the spring connecting seat (3041); an upper protrusion (3043) installed on the top of the straight rod (3042); a horizontal sliding seat (3044) slidably connected to the outer side of the straight rod (3042) via the upper protrusion (3043); a rolling wheel (3045) movably connected to the outer side of the horizontal sliding seat (3044); and an inner groove (3046) formed at the center of the outer side of the rolling wheel (3045). The rolling wheel (3045) abuts against the hoisting rope (303) through an internal groove (3046).

7. The tunnel construction adaptive pipe roof support system according to claim 3, characterized in that: The lifting plate assembly (305) includes: a connecting hook (3051) connected to the hoisting rope (303); a lower mounting plate (3052) connected to the connecting hook (3051), the outer side of the lower mounting plate (3052) being mounted on the side of the sliding block (3013); an oblique positioning rod (3053) mounted at the included angle on the left and right sides of the lower mounting plate (3052); an upper support column (3054) mounted on the top center of the lower mounting plate (3052) by screws; a vertical support rod (3055) mounted on the top of the upper support column (3054); side support rods (3056) mounted on the left and right sides of the upper support column (3054); and a V-shaped reinforcing arm (3057) mounted between the upper support column (3054) and the side support rods (3056). The top of the side support rod (3056) and the vertical support rod (3055) is fitted with a support plate (40) by screws.

8. The tunnel construction adaptive pipe roof support system according to claim 7, characterized in that: The upper support column (3054) is internally rotatably connected to a lower reinforcing arm (30541) extending to the outside. The left and right sides of the lower reinforcing arm (30541) are mounted on the sides of the vertical seat (30542). The vertical seat (30542) is mounted on the top of the lower mounting plate (3052) by screws.

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