Assembled tunnel excavation supporting structure

Abstract

The utility model provides an assembly type tunnel excavation supporting structure which comprises a supporting plate and a plurality of supporting cylinders, a supporting groove is formed in the bottom of the supporting plate, a locking rod is connected to the inner side of the supporting groove in an inserted mode, the inner end of the locking rod is fixedly connected with a first locking block, and a first spring is arranged between the first locking block and the inner wall of the supporting groove. Compared with the prior art, the locking device has the advantages that the supporting groove, the locking rod, the first locking block and other structures are arranged, the locking rod is pulled outwards, the locking rod drives the first locking block to move, the connecting block is avoided, the connecting block is inserted into the supporting groove, the locking rod is loosened, the first spring drives the locking rod and the first locking block to reset, the first locking block is clamped into the locking groove, and the connecting block is clamped; and the support plate is connected with the support cylinder. When the supporting position needs to be replaced, the locking rod is pulled outwards to unlock the connecting block, and the supporting cylinder is conveniently detached from the bottom of the supporting plate. The dismounting and mounting process is simple and rapid, the supporting position can be rapidly adjusted, and the tunnel excavation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel support, in particular to an assembled tunnel excavation support structure. Background Art

[0002] Tunnel excavation and support is a very important part of tunnel construction, which involves the safety, stability and smooth progress of the tunnel. Tunnel excavation and support can pre-support the surrounding rock around the tunnel to improve the stability and deformation resistance of the surrounding rock.

[0003] The existing tunnel excavation support is relatively cumbersome to disassemble and assemble. When the tunnel support needs to be changed, it takes a lot of time to disassemble and assemble, which will affect the tunnel excavation process and the efficiency of tunnel construction. An existing assembled support structure can improve the disassembly and assembly efficiency through the detachable connection between the support cylinder and the support plate. However, since the support cylinder can be quickly disassembled and assembled, its stability is not high, and the support stability needs to be improved. An assembled tunnel excavation support structure is proposed for improvement. Utility Model Content

[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.

[0005] To this end, one purpose of the utility model is to propose an assembled tunnel excavation support structure to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of the utility model on one hand provides an assembled tunnel excavation support structure, comprising a support plate and a plurality of support cylinders, a support groove is provided at the bottom of the support plate, a locking rod is inserted into the inner side of the support groove, a first locking block is fixedly connected to the inner end of the locking rod, and a first spring is provided between the first locking block and the inner wall of the support groove;

[0007] A connecting block is fixedly connected to the top of the support cylinder, a locking groove is provided on the inner side of the connecting block, and a connecting frame is fixedly connected to the support cylinder;

[0008] A connecting groove is provided in the connecting frame, a connecting rod is inserted in the connecting groove, receiving grooves are provided on both sides of the end of the connecting rod, a guide rod is fixedly connected in the receiving groove, a second locking block is sleeved on the outer end of the guide rod, a second spring is provided between the second locking block and the inner wall of the receiving groove, and an oblique support rod is rotatably connected to the inner side of the connecting frame.

[0009] Preferably, any of the above schemes adopts an arc-shaped structure, a support beam is provided at the bottom end of the support plate, and the support groove is opened on the bottom surface of the support beam.

[0010] Preferably, any of the above solutions has a bottom surface of the first locking block that is an inclined surface, and the first spring is sleeved on the outside of the locking rod.

[0011] The above technical solution is adopted: the support plate cooperates with the support cylinder to support the tunnel to ensure the stability of the tunnel. The support plate adopts an arc structure to adapt to the structure of the tunnel. The support groove provides a plug-in space for the connection block, and the locking rod is used to drive the first locking block to move. The first locking block can cooperate with the first locking groove on the connection block to lock the connection block. Pull the locking rod outward to drive the first locking block to move, avoid the connection block, and make the connection block conveniently pulled out of the support groove or inserted into the support groove.

[0012] Preferably, any of the above schemes is that a plurality of the support cylinders are evenly arranged at the bottom of the support plate, and the size and shape of the locking groove match those of the first locking block.

[0013] Preferably, any of the above schemes adopts a T-shaped structure, and the connecting frame is fixedly connected to the fixed sleeve of the support cylinder.

[0014] The above technical solution is adopted: a number of support cylinders are evenly arranged at the bottom of the support plate to ensure the force balance of each part of the support plate. The connecting block cooperates with the first locking block, locking rod and other structures to realize the connection between the support cylinder and the support plate. The connecting frame provides an installation platform for the connecting rod and the oblique support rod. The connecting groove provides a plug-in space for the connecting rod, which adopts a T-shaped structure, which is convenient for cooperating with the second locking block, the guide rod and the second spring to realize the locking of the connecting rod.

[0015] Preferably, in any of the above schemes, the size and shape of the accommodating groove match those of the connecting groove, and the guide rod is fixedly connected to the middle of the accommodating groove.

[0016] Preferably, any of the above solutions has an outer side of the second locking block having an inclined surface, and the second spring sleeve is arranged on the outer side of the guide rod.

[0017] The above technical solution is adopted: the receiving groove provides storage space for the second locking block, the second spring and the guide rod. The guide rod guides and limits the second locking block to prevent the second locking block from being displaced in other directions. The second locking block can realize the connection between the connecting rod and the connecting frame in the connecting groove. The second spring elastically supports the second locking block. The oblique support rod can provide oblique support from the inner support cylinder to resist the oblique force applied by the support plate on the support cylinder, thereby improving the stability of the support cylinder.

[0018] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0019] 1. The assembled tunnel excavation support structure is provided with a support groove, a locking rod, a first locking block, a connecting block, a locking groove and other structures. The locking rod is pulled outward, and the locking rod drives the first locking block to move, so that the connecting block is avoided, and the connecting block is inserted into the support groove. The locking rod is loosened, and the first spring drives the locking rod and the first locking block to reset. The first locking block is inserted into the locking groove to fix the connecting block, thereby realizing the connection between the support plate and the support cylinder. When the support position needs to be changed, the locking rod is pulled outward to unlock the connecting block, and the support cylinder is conveniently removed from the bottom of the support plate. The disassembly and assembly process is simple and quick, and the support position can be quickly adjusted to improve the efficiency of tunnel excavation.

[0020] 2. The assembled tunnel excavation support structure is provided with a connection frame, a connection groove, a connecting rod, a guide rod, a second locking block, a second spring and other structures, so that the connecting rod can be conveniently disassembled and assembled between two connection frames to connect adjacent support cylinders, which can greatly improve the overall stability of the support cylinders. The oblique support rod can resist the oblique force exerted on the support cylinder by the support plate, further improving the stability of the support cylinder.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the structure of the utility model from a first perspective;

[0024] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle;

[0025] Figure 3 It is a schematic diagram of the cutaway structure of the connection block of the utility model;

[0026] Figure 4 It is a schematic diagram of the cutaway structure of the connection frame of the utility model.

[0027] In the figure: 1-support plate, 2-support groove, 3-locking rod, 4-first locking block, 5-first spring, 6-support cylinder, 7-connecting block, 8-locking groove, 9-connecting frame, 10-connecting groove, 11-connecting rod, 12-accommodating groove, 13-guide rod, 14-second locking block, 15-second spring, 16-oblique support rod. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] like Figures 1 to 4 As shown, the utility model comprises a supporting plate 1 and a plurality of supporting cylinders 6. A supporting groove 2 is provided at the bottom of the supporting plate 1. A locking rod 3 is inserted into the inner side of the supporting groove 2. A first locking block 4 is fixedly connected to the inner end of the locking rod 3. A first spring 5 is provided between the first locking block 4 and the inner wall of the supporting groove 2.

[0031] A connecting block 7 is fixedly connected to the top of the supporting cylinder 6, a locking groove 8 is provided on the inner side of the connecting block 7, and a connecting frame 9 is fixedly connected to the supporting cylinder 6;

[0032] A connecting groove 10 is provided in the connecting frame 9, a connecting rod 11 is inserted in the connecting groove 10, and receiving grooves 12 are provided on both sides of the end of the connecting rod 11. A guide rod 13 is fixedly connected in the receiving groove 12, and a second locking block 14 is sleeved on the outer end of the guide rod 13. A second spring 15 is provided between the second locking block 14 and the inner wall of the receiving groove 12, and an oblique support rod 16 is rotatably connected to the inner side of the connecting frame 9.

[0033] Embodiment 1: The support plate 1 adopts an arc-shaped structure, and a support beam is provided at the bottom end of the support plate 1, and the support groove 2 is opened on the bottom surface of the support beam. The bottom surface of the first locking block 4 adopts an inclined surface, and the first spring 5 is sleeved on the outside of the locking rod 3. The support plate 1 cooperates with the support cylinder 6 to support the tunnel to ensure the stability of the tunnel. The support plate 1 adopts an arc-shaped structure to adapt to the structure of the tunnel. The support groove 2 provides a plug-in space for the connecting block 7, and the locking rod 3 is used to drive the first locking block 4 to move. The first locking block 4 can cooperate with the first locking groove 8 on the connecting block 7 to lock the connecting block 7. Pull the locking rod 3 outward to drive the first locking block 4 to move, avoid the connecting block 7, and make the connecting block 7 conveniently pulled out of the support groove 2 or inserted into the support groove 2.

[0034] Embodiment 2: A number of support cylinders 6 are evenly arranged at the bottom of the support plate 1, and the size and shape of the locking groove 8 match the first locking block 4. The connecting groove 10 adopts a T-shaped structure, and the connecting frame 9 is fixedly connected to the fixed sleeve of the support cylinder 6. A number of support cylinders 6 are evenly arranged at the bottom of the support plate 1 to ensure the force balance at various locations of the support plate 1. The connecting block 7 cooperates with the first locking block 4, the locking rod 3 and other structures to realize the connection between the support cylinder 6 and the support plate 1. The connecting frame 9 provides an installation platform for the connecting rod 11 and the oblique support rod 16. The connecting groove 10 provides a plug-in space for the connecting rod 11, which adopts a T-shaped structure, which is convenient for cooperating with the second locking block 14, the guide rod 13 and the second spring 15 to realize the locking of the connecting rod 11.

[0035] Embodiment 3: The size and shape of the receiving groove 12 match those of the connecting groove 10, and the guide rod 13 is fixedly connected to the middle part of the receiving groove 12. The outer side of the second locking block 14 adopts an inclined surface, and the second spring 15 is sleeved on the outer side of the guide rod 13. The receiving groove 12 provides storage space for the second locking block 14, the second spring 15 and the guide rod 13. The guide rod 13 guides and limits the second locking block 14 to prevent the second locking block 14 from being displaced in other directions. The second locking block 14 can realize the connection between the connecting rod 11 and the connecting frame 9 in the connecting groove 10. The second spring 15 elastically supports the second locking block 14. The oblique support rod 16 can provide oblique support from the inner support cylinder 6 to resist the oblique force applied to the support cylinder 6 by the support plate 1, thereby improving the stability of the support cylinder 6.

[0036] The working principle of the utility model is as follows:

[0037] S1, the support cylinder 6 cooperates with the support plate 1 to support the tunnel to ensure the stability of the tunnel. The connecting rod 11 connects several support cylinders 6 together, and the oblique support rod 16 supports the support cylinder 6 from the side to ensure the stability of the support cylinder 6;

[0038] S2. When the support position needs to be changed, the locking rod 3 is pulled outward to drive the first locking block 4 to disengage from the locking groove 8, so that the connecting block 7 is unlocked, and then the support cylinder 6 can be removed from the bottom of the support plate 1;

[0039] S3, press the second locking block 14 inwards to make the second locking block 14 completely enter the receiving groove 12, and then the connecting rod 11 can be pulled out from the connecting frame 9 to realize the disassembly between the supporting cylinders 6. After the disassembly is completed, it can be moved to the desired position for support after assembly.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] 1. The assembled tunnel excavation support structure is provided with structures such as support groove 2, locking rod 3, first locking block 4, connecting block 7, locking groove 8, etc. The locking rod 3 is pulled outward, and the locking rod 3 drives the first locking block 4 to move, so as to avoid the connecting block 7, insert the connecting block 7 into the support groove 2, release the locking rod 3, and the first spring 5 drives the locking rod 3 and the first locking block 4 to reset, and the first locking block 4 is inserted into the locking groove 8 to fix the connecting block 7, so as to realize the connection between the supporting plate 1 and the supporting cylinder 6. When the supporting position needs to be changed, the locking rod 3 is pulled outward to unlock the connecting block 7, and the supporting cylinder 6 is conveniently removed from the bottom of the supporting plate 1. The disassembly and assembly process is simple and quick, and the supporting position can be adjusted quickly, thereby improving the efficiency of tunnel excavation.

[0042] 2. The assembled tunnel excavation support structure, by providing the connection frame 9, the connection groove 10, the connecting rod 11, the guide rod 13, the second locking block 14, the second spring 15 and other structures, enables the connecting rod 11 to be conveniently disassembled and assembled between the two connection frames 9, connects the adjacent support cylinders 6, and can greatly improve the overall stability of the support cylinders 6. The oblique support rod 16 can resist the oblique force applied by the support plate 1 on the support cylinder 6, and further improve the stability of the support cylinder 6.

Claims

1. An assembled tunnel excavation support structure, comprising a support plate (1) and a plurality of support cylinders (6); characterized in that: A support groove (2) is provided at the bottom of the support plate (1), a locking rod (3) is inserted into the inner side of the support groove (2), a first locking block (4) is fixedly connected to the inner end of the locking rod (3), and a first spring (5) is provided between the first locking block (4) and the inner wall of the support groove (2); The top of the support cylinder (6) is fixedly connected with a connection block (7), the inner side of the connection block (7) is provided with a locking groove (8), and the support cylinder (6) is fixedly connected with a connection frame (9); The connecting frame (9) is provided with a connecting groove (10), a connecting rod (11) is inserted into the connecting groove (10), and receiving grooves (12) are provided on both sides of the end of the connecting rod (11), a guide rod (13) is fixedly connected in the receiving groove (12), a second locking block (14) is sleeved on the outer end of the guide rod (13), a second spring (15) is provided between the second locking block (14) and the inner wall of the receiving groove (12), and an oblique support rod (16) is rotatably connected to the inner side of the connecting frame (9).

2. The assembled tunnel excavation support structure according to claim 1, characterized in that: The support plate (1) adopts an arc-shaped structure, a support beam is provided at the bottom end of the support plate (1), and the support groove (2) is opened on the bottom surface of the support beam.

3. An assembled tunnel excavation support structure according to claim 2, characterized in that: The bottom surface of the first locking block (4) is an inclined surface, and the first spring (5) is sleeved on the outside of the locking rod (3).

4. The assembled tunnel excavation support structure according to claim 1, characterized in that: The plurality of support cylinders (6) are evenly arranged at the bottom of the support plate (1), and the size and shape of the locking groove (8) match those of the first locking block (4).

5. The assembled tunnel excavation support structure according to claim 4, characterized in that: The connection groove (10) adopts a T-shaped structure, and the connection frame (9) is fixedly connected to the fixed sleeve of the support cylinder (6).

6. An assembled tunnel excavation support structure according to claim 5, characterized in that: The size and shape of the containing groove (12) match those of the connecting groove (10), and the guide rod (13) is fixedly connected to the middle part of the containing groove (12).

7. An assembled tunnel excavation support structure according to claim 6, characterized in that: The outer side of the second locking block (14) is an inclined surface, and the second spring (15) is sleeved on the outer side of the guide rod (13).

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