Portable collapse-preventing supporting structure for tunnel excavation

Abstract

The utility model belongs to the field of supporting structures, and particularly relates to a portable tunnel excavation anti-collapse supporting structure which comprises two supporting plates, the tops of the two supporting plates are provided with the same arc-shaped top plate through a detachable structure, and the same reinforcing plate is installed between the two supporting plates through a detachable structure. A supporting mechanism is arranged between the arc-shaped top plate and the reinforcing plate; a fixing seat is fixedly mounted at the bottom of one side of the supporting plate, a plurality of inserting rods are mounted at the bottom of the fixing seat at equal intervals, a mounting groove is formed in one side of the supporting plate, mounting seats are fixedly mounted on the two sides of a reinforcing plate, and the mounting seats are matched with the mounting groove; an inserting hole is formed in the top of the mounting base, and an inserting groove is formed in the top of the supporting plate. The device is reasonable in design, the supporting plate, the reinforcing plate and the arc-shaped top plate can be disassembled and assembled conveniently, meanwhile, the arc-shaped top plate can be reinforced and supported through the supporting mechanism, and the situation that the arc-shaped top plate is extruded and deformed is avoided.

Description

Technical Field

[0001] This utility model relates to the field of support structure technology, and in particular to a convenient tunnel excavation anti-collapse support structure. Background Technology

[0002] During tunnel excavation, the risk of tunnel collapse always exists due to the complexity and uncertainty of geological conditions, such as differences in rock hardness, groundwater seepage, and changes in stratum pressure. A collapse would not only delay construction and cause huge economic losses, but also pose a serious threat to the lives of construction workers.

[0003] To prevent tunnel collapse and ensure the smooth progress of construction, various tunnel excavation anti-collapse support structures have emerged. However, traditional tunnel excavation anti-collapse support structures have many problems that urgently need to be solved. On the one hand, the support frame is troublesome to install, making it inconvenient to carry and use. On the other hand, traditional support frames support the top of the tunnel through arc-shaped plates, but the stability of the middle part of the arc-shaped plate is poor, and it is easy to be squeezed and deformed, posing a safety hazard. Therefore, we propose a convenient tunnel excavation anti-collapse support structure to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a convenient tunnel excavation anti-collapse support structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A convenient tunnel excavation anti-collapse support structure includes two support plates. A single arc-shaped top plate is detachably mounted on the top of each support plate. A single reinforcing plate is detachably mounted between the two support plates. A support mechanism is provided between the arc-shaped top plate and the reinforcing plate. A fixing seat is fixedly mounted on one side of the bottom of each support plate. Multiple insert rods are evenly spaced at the bottom of the fixing seat. An installation groove is formed on one side of the support plate. Mounting seats are fixedly mounted on both sides of the reinforcing plate, and the mounting seats are compatible with the mounting groove. An insertion hole is formed on the top of each mounting seat. A slot is formed on the top of each support plate. A socket is fixedly mounted on the bottom of the arc-shaped top plate, and the socket is inserted into the slot and passes through the corresponding insertion hole.

[0007] Preferably, a rectangular base is fixedly installed at the bottom of the reinforcing plate, and a fixing mechanism is provided on the rectangular base, and the fixing mechanism is compatible with the socket.

[0008] Preferably, the fixing mechanism includes a threaded hole, a fixing screw, a knob, and a fixing groove. The fixing groove is opened on one side of the socket, the threaded hole is opened on the rectangular base, the fixing screw is installed in the threaded hole, the fixing screw is adapted to the fixing groove, and a knob is fixedly installed at one end of the fixing screw.

[0009] Preferably, a fixing hole is provided on one side of the inner wall of the slot, the fixing hole is adapted to the corresponding fixing groove, and the fixing screw can pass through the fixing hole.

[0010] Preferably, the support mechanism includes a rotating rod, a threaded groove, a support screw, and an anti-slip seat. The rotating rod is rotatably mounted on the arc-shaped top plate, and a rotating mechanism is provided between the rotating rod and the arc-shaped top plate. A threaded groove is provided at the bottom end of the rotating rod, and a support screw is threadedly installed in the threaded groove. An anti-slip seat that contacts the reinforcing plate is fixedly installed at the bottom end of the support screw.

[0011] Preferably, the rotating mechanism includes a U-shaped seat and a rotating shaft. The U-shaped seat is fixedly installed on the bottom of the arc-shaped top plate, and the rotating shaft is rotatably installed on the inner walls of both sides of the U-shaped seat, with the rotating rod fixedly sleeved on the rotating shaft.

[0012] Preferably, the top of the anti-slip seat is fixedly installed with a handle, and the bottom of the protective seat is installed with multiple anti-slip teeth.

[0013] Preferably, the number of the fixing rods is set to four to eight, and the four to eight fixing rods are evenly spaced.

[0014] The beneficial effects of this utility model are:

[0015] 1. When assembling the tunnel excavation anti-collapse frame, first insert the mounting base on the reinforcing plate into the corresponding mounting slot, and then insert the socket on the bottom of the arc-shaped top plate into the corresponding slot. The socket can pass through the insertion hole on the mounting base, thereby achieving the purpose of assembling the support plate, reinforcing plate and arc-shaped top plate. With the cooperation of the fixing screw and fixing slot, the support plate, reinforcing plate and arc-shaped top plate can be fixedly installed.

[0016] 2. The support plate and the curved roof plate can be placed into the tunnel by the fixed seat and the insert rod, so that the curved roof plate contacts the inner wall of the tunnel top. By turning the handle, the support screw and the protective seat can be driven to move downward and make close contact with the reinforcement plate, which can reinforce and support the curved roof plate and prevent the curved roof plate from being squeezed and deformed. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a convenient tunnel excavation anti-collapse support structure proposed in this utility model;

[0018] Figure 2This is a top-view schematic diagram of a convenient tunnel excavation anti-collapse support structure proposed in this utility model.

[0019] Figure 3 This is a partial cross-sectional view of a convenient tunnel excavation anti-collapse support structure proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of part A of a convenient tunnel excavation anti-collapse support structure proposed in this utility model.

[0021] Figure 5 This is a cross-sectional three-dimensional structural diagram of the support mechanism of a convenient tunnel excavation anti-collapse support structure proposed in this utility model.

[0022] In the diagram: 101, support plate; 102, curved top plate; 103, reinforcing plate; 201, fixed seat; 202, fixed rod; 3, support mechanism; 301, U-shaped seat; 302, rotating shaft; 303, rotating rod; 304, threaded groove; 305, support screw; 306, anti-slip seat; 307, handle; 401, mounting groove; 402, mounting seat; 403, insertion hole; 404, slot; 405, socket; 501, fixing groove; 502, rectangular seat; 503, threaded hole; 504, fixed screw; 505, knob. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses a convenient tunnel excavation anti-collapse support structure.

[0025] Reference Figure 1-5 A convenient tunnel excavation anti-collapse support structure includes two support plates 101. A single arc-shaped top plate 102 is detachably mounted on the top of each support plate 101. A single reinforcing plate 103 is detachably mounted between the two support plates 101. A support mechanism 3 is provided between the arc-shaped top plate 102 and the reinforcing plate 103. A fixing seat 201 is fixedly mounted on the bottom of one side of each support plate 101. Multiple fixing rods 202 are evenly spaced at the bottom of the fixing seat 201. More specifically, the fixing rods... The number of 202 is set to four to eight, and the four to eight fixed plug rods 202 are equally spaced. A mounting groove 401 is opened on one side of the support plate 101. Mounting seats 402 are fixedly installed on both sides of the reinforcing plate 103, and the mounting seats 402 are adapted to the mounting groove 401. A plug hole 403 is opened on the top of the mounting seat 402, a slot 404 is opened on the top of the support plate 101, and a socket 405 is fixedly installed on the bottom of the arc-shaped top plate 102. The socket 405 is inserted into the slot 404 and passes through the corresponding plug hole 403.

[0026] In this embodiment, a rectangular base 502 is fixedly installed on the bottom of the reinforcing plate 103. The rectangular base 502 is provided with a fixing mechanism, which is adapted to the socket 405. The fixing mechanism includes a threaded hole 503, a fixing screw 504, a knob 505, and a fixing groove 501. The fixing groove 501 is opened on one side of the socket 405. The threaded hole 503 is opened on the rectangular base 502. The fixing screw 504 is installed in the threaded hole 503. The fixing screw 504 is adapted to the fixing groove 501. A knob 505 is fixedly installed on one end of the fixing screw 504. A fixing hole is opened on one side of the inner wall of the slot 404. The fixing hole is adapted to the corresponding fixing groove 501, and the fixing screw 504 can pass through the fixing hole. With the cooperation of the fixing screw 504 and the fixing groove 501, the purpose of fixing the support plate 101, the reinforcing plate 103, and the arc-shaped top plate 102 can be achieved.

[0027] In this embodiment, the support mechanism 3 includes a rotating rod 303, a threaded groove 304, a support screw 305, and an anti-slip seat 306. The rotating rod 303 is rotatably mounted on the arc-shaped top plate 102, and a rotating mechanism is provided between the rotating rod 303 and the arc-shaped top plate 102. The bottom end of the rotating rod 303 is provided with a threaded groove 304, and the support screw 305 is threadedly installed in the threaded groove 304. The bottom end of the support screw 305 is fixedly installed with an anti-slip seat 306 that contacts the reinforcing plate 103. By rotating the handle 307, the anti-slip seat 306, and the support screw, the support screw can rotate and move at the same time under the action of the threaded groove 304. The support screw 305 can move downward with the protective seat and make close contact with the reinforcing plate 103, which can reinforce and support the arc-shaped top plate 102 and prevent the arc-shaped top plate 102 from being squeezed and deformed.

[0028] In this embodiment, the rotating mechanism includes a U-shaped seat 301 and a rotating shaft 302. The U-shaped seat 301 is fixedly installed on the bottom of the arc-shaped top plate 102. The rotating shaft 302 is rotatably installed on the inner walls of both sides of the U-shaped seat 301, and the rotating rod 303 is fixedly sleeved on the rotating shaft 302. By providing the rotating shaft 302, the rotating rod 303 can be rotatably installed on the arc-shaped top plate 102. The top of the anti-slip seat 306 is fixedly installed with a handle 307, and the bottom of the protective seat is equipped with multiple anti-slip teeth. By providing the anti-slip teeth, the purpose of friction between the anti-slip seat 306 and the reinforcing plate 103 can be achieved.

[0029] In this invention, when assembling the tunnel excavation anti-collapse frame, firstly, the mounting base 402 on the reinforcing plate 103 is inserted into the corresponding mounting slot 401. Then, the socket 405 on the bottom of the arc-shaped top plate 102 is inserted into the corresponding slot 404, and the socket 405 can pass through the insertion hole 403 on the mounting base 402, thereby achieving the purpose of assembling the support plate 101, the reinforcing plate 103, and the arc-shaped top plate 102. By rotating the knob 505 and the fixing screw 504, under the action of the threaded hole 503, the fixing screw 504 can rotate and move at the same time, and the fixing screw 504 can be inserted into the corresponding fixing slot 501. This device enables the fixed installation of the support plate 101, the reinforcing plate 103, and the arc-shaped roof plate 102. The support plate 101 and the arc-shaped roof plate 102 can be placed into the tunnel through the fixing seat 201 and the insert rod, so that the arc-shaped roof plate 102 contacts the inner wall of the tunnel top. By rotating the handle 307, the anti-slip seat 306, and the support screw, the support screw can be rotated and moved at the same time under the action of the threaded groove 304. The support screw 305 can bring the protective seat down and make close contact with the reinforcing plate 103, which can reinforce and support the arc-shaped roof plate 102 and prevent the arc-shaped roof plate 102 from being squeezed and deformed.

[0030] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A portable tunnel excavation anti-collapse support structure, characterized by, Two support plates (101) are provided, the top of the two support plates (101) is provided with the same arc-shaped top plate (102) through detachable structure, the two support plates (101) are provided with the same reinforcing plate (103) through detachable structure, and the arc-shaped top plate (102) and the reinforcing plate (103) are provided with a supporting mechanism (3); A fixing seat (201) is fixedly installed on the bottom of the support plate (101), a plurality of fixing inserting rods (202) are installed on the bottom of the fixing seat (201) at equal intervals, an installation groove (401) is formed in one side of the support plate (101), and mounting seats (402) are fixedly installed on the two sides of the reinforcing plate (103) and matched with the installation groove (401). A plug hole (403) is formed in the top of the mounting seat (402), a plug slot (404) is formed in the top of the support plate (101), a plug socket (405) is fixedly installed on the bottom of the arc-shaped top plate (102) and inserted into the plug slot (404) and penetrates through the corresponding plug hole (403).

2. A portable tunnel excavation anti-collapse support structure according to claim 1, wherein, The bottom of the reinforcing plate (103) is fixedly provided with a rectangular seat (502), and a fixing mechanism is arranged on the rectangular seat (502) and matched with the plug socket (405).

3. A portable tunnel excavation anti-collapse support structure according to claim 2, wherein, The fixing mechanism comprises a threaded hole (503), a fixing screw rod (504), a knob (505) and a fixing slot (501), the fixing slot (501) is formed on one side of the plug socket (405), the threaded hole (503) is formed on the rectangular seat (502), the fixing screw rod (504) is threadedly installed in the threaded hole (503), the fixing screw rod (504) is matched with the fixing slot (501), and the knob (505) is fixedly installed at one end of the fixing screw rod (504).

4. A portable tunnel excavation anti-collapse support structure according to claim 3, wherein A fixing hole is formed in the inner wall of one side of the plug slot (404), the fixing hole is matched with the corresponding fixing slot (501), and the fixing screw rod (504) can penetrate through the fixing hole.

5. The portable tunneling anti-collapse support structure of claim 1, wherein, The supporting mechanism (3) comprises a rotating rod (303), a threaded slot (304), a supporting screw rod (305) and an anti-skid seat (306), the rotating rod (303) is rotatably installed on the arc-shaped top plate (102), a rotating mechanism is arranged between the rotating rod (303) and the arc-shaped top plate (102), the bottom end of the rotating rod (303) is provided with the threaded slot (304), the supporting screw rod (305) is threadedly installed in the threaded slot (304), and the bottom end of the supporting screw rod (305) is fixedly provided with the anti-skid seat (306) in contact with the reinforcing plate (103).

6. A portable tunnel excavation anti-collapse support structure according to claim 5, wherein, The rotating mechanism comprises a U-shaped seat (301) and a rotating shaft (302), the U-shaped seat (301) is fixedly installed on the bottom of the arc-shaped top plate (102), the rotating shaft (302) is rotatably installed on the inner walls of the two sides of the U-shaped seat (301), and the rotating rod (303) is fixedly sleeved on the rotating shaft (302).

7. A portable tunnel excavation anti-collapse support structure according to claim 5, wherein A handle (307) is fixedly installed on the top of the anti-skid seat (306), and a plurality of anti-skid teeth are installed on the bottom of the protective seat.

8. The portable tunneling anti-collapse support structure of claim 1, wherein, The number of the fixed insertion rods (202) is set to four to eight, and the four to eight fixed insertion rods (202) are set at equal intervals.

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