An anti-collapse support device for road and bridge tunnel construction

Abstract

The present invention discloses an anti-collapse support device for road and bridge tunnel construction, belonging to the technical field of road and bridge tunnel construction. The anti-collapse support device for road and bridge tunnel construction includes a base, support columns are symmetrically arranged on the base, a mounting plate is connected to the support columns, a top support module is arranged on the mounting plate, a lifting assembly and a first limiting assembly are arranged between the mounting plate and the top support module. The first limiting assembly includes a lifting rod, second wedge-shaped blocks are distributed on both sides of the lifting rod, first limiting grooves are arranged on both sides of the lifting rod, a moving plate is arranged in the first limiting grooves, a first wedge-shaped block is arranged on one side of the moving plate, a first slider is connected to the other side of the moving plate, a first limiting gear is installed in the first limiting grooves, the first limiting gear is connected to one end of a first swing rod, the other end of the first swing rod is hinged to the first slider, and a first movable rack is arranged in the first limiting grooves, having the advantages of stable fitting, stable support, flexible adjustment, high-efficiency limiting and safety and reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of road and bridge tunnel construction, and specifically relates to an anti-collapse support device for road and bridge tunnel construction. Background Technique

[0002] Tunnel construction, abbreviated as the New Austrian Tunneling Method, is a reasonable construction method proposed by Austrian scholars from the perspective of rock mechanics in long-term tunnel construction practice. It is a new engineering construction method formed by adopting shotcrete and bolt support technologies, monitoring and measurement, etc., and constituting a system with rock mechanics theory.

[0003] During the construction of road and bridge tunnels, without supporting the road and bridge tunnels, the phenomenon of collapse is likely to occur, affecting the construction efficiency. The current anti-collapse support device for road and bridge tunnel construction supports the road and bridge tunnels by installing support plates. However, most of this support method installs and connects the support plates by means of threaded bolts, which is not convenient for the support plates to be adjusted according to the specific situation of the road and bridge tunnels, reducing the applicability of the device. As can be seen from the above, the existing anti-collapse support device for road and bridge tunnel construction has the disadvantage that it is not convenient for the support plates to be adjusted according to the specific situation of the road and bridge tunnels, and it is difficult to be popularized and applied.

[0004] Therefore, it is necessary to provide an anti-collapse support device for road and bridge tunnel construction to solve the above problems. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the purpose of the embodiments of the present invention is to provide an anti-collapse support device for road and bridge tunnel construction to solve the problems in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A road and bridge tunnel construction anti-collapse support device, including a base, symmetric support columns are arranged on the base, an installation plate is connected to the support columns, a top support module is arranged on the installation plate, a lifting component and a first limiting component are arranged between the installation plate and the top support module, the first limiting component includes a lifting rod movably arranged on the installation plate, a number of second wedge-shaped blocks are distributed on both sides of the lifting rod, first limiting grooves are arranged in the installation plate on both sides of the lifting rod, a moving plate is slidably arranged in the first limiting grooves, a first wedge-shaped block matched with the second wedge-shaped blocks is arranged on one side of the moving plate close to the lifting rod, a first slider is slidably connected to the other side of the moving plate, a first limiting gear is movably installed in the first limiting grooves, one end of the first limiting gear is fixedly connected to one end of a first swing rod, the other end of the first swing rod is hinged to the first slider, a first movable rack meshed with the first limiting gear is movably arranged in the first limiting grooves, one end of the first movable rack is connected to the first limiting grooves through a first spring, the other end of the first movable rack penetrates through the first limiting grooves. In the initial position, the first wedge-shaped block and the second wedge-shaped blocks cooperate to fix the height of the top support module by fixing the height of the lifting rod. When the top support module needs to move up, push up or pull down the first movable rack, the first spring is stressed and contracts or elongates, the first movable rack drives the first limiting gear to rotate, the first limiting gear drives the first swing rod to rotate, the first swing rod drives the first slider and the moving plate to slide, the moving plate drives the first wedge-shaped block to move away from the lifting rod to release the fixation of the lifting rod, and the lifting component supports the top structure of the road and bridge tunnel by driving the top support module to move up.

[0008] As a further scheme of the present invention, the top support module includes:

[0009] A top plate, the top plate is arranged on the side of the installation plate away from the base, and the top plate is a convex arc plate;

[0010] A cross plate, the cross plate is arranged between the installation plate and the top plate, and the cross plate is connected to the lifting rod;

[0011] A number of connecting columns are arranged and connected between the cross plate and the top plate.

[0012] As a further scheme of the present invention, the lifting component includes:

[0013] Connecting holes are arranged in the installation plate and the support columns;

[0014] A support tooth column is movably arranged in the connecting holes, and one end of the support tooth column is connected to the cross plate;

[0015] Lifting gear, the lifting gear is movably arranged in the connecting hole, and the lifting gear is connected to the output end of the lifting motor.

[0016] As a further solution of the present invention, on the sides of the support columns away from each other, there are side plates, and a support assembly is connected between the side plates and the support columns.

[0017] As a further solution of the present invention, the support assembly includes:

[0018] A mounting seat, the mounting seat is arranged on the side of the support column close to the side plate, and a transmission gear is movably arranged on the mounting seat;

[0019] A second slider, the second slider is slidably arranged on the side of the side plate close to the mounting seat, one end of the second slider is hinged to one end of a second swing rod, and the other end of the second swing rod is fixedly connected to the transmission gear;

[0020] A moving rack, the moving rack is movably arranged in the support column and meshed with the transmission gear;

[0021] A connecting plate, the connecting plate is located on the side where the support columns are close to each other and is connected to the end of the moving rack away from the side plate, and a threaded cylinder is installed on the connecting plate;

[0022] A lead screw, the lead screw is threadedly connected to the threaded cylinder, and one end of the lead screw is connected to the output end of an adjustment motor installed on the support column.

[0023] As a further solution of the present invention, a second limiting component is arranged in the support column, and the second limiting component is distributed on both sides of the moving rack.

[0024] As a further solution of the present invention, the second limiting component includes:

[0025] Second limiting grooves, the second limiting grooves are arranged in the support column and on both sides of the moving rack, link rods are movably arranged in the second limiting grooves, one end of each link rod penetrates through the second limiting groove and is provided with a rack plate meshed with the moving rack;

[0026] Second limiting gears, the second limiting gears are movably arranged in the second limiting grooves, a connecting groove plate is connected to the outside of the second limiting gears, a connecting column is slidably arranged in the connecting groove plate, and the connecting column is installed at the end of the link rod away from the rack plate;

[0027] Second movable toothed rods, the second movable toothed rods are movably arranged in the second limiting grooves and meshed with the second limiting gears, one end of each second movable toothed rod is connected to the second limiting groove by a second spring, and the other end of each second movable toothed rod penetrates through the second limiting groove.

[0028] In summary, the embodiments of the present invention have the following beneficial effects compared with the prior art:

[0029] Through the top support module, the present invention can stably fit and support the top structure of the road and bridge tunnel. Through the lifting component, the position of the top support module can be adjusted to meet the support requirements of different heights. Through the first limiting component, the position of the top support module can be stably limited to prevent collapse during the support process and affect the construction safety, having the effects of stable fitting, stable support, flexible adjustment, efficient limiting, and safety and reliability.

[0030] To more clearly elaborate the structural features and functions of the present invention, the following will combine the drawings and specific embodiments to detail the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic structural diagram of an embodiment of the invention.

[0032] Figure 2 It is a partial enlarged view of A in the embodiment of the invention.

[0033] Figure 3 It is a partial enlarged view of B in the embodiment of the invention.

[0034] Figure 4 It is a partial enlarged view of C in the embodiment of the invention.

[0035] Figure 5 It is a partial enlarged view of D in the embodiment of the invention.

[0036] Figure 6 It is a schematic structural diagram of the threaded barrel in the embodiment of the invention.

[0037] Reference numerals: 1 - base, 2 - support column, 3 - mounting plate, 4 - top support module, 401 - horizontal plate, 402 - top plate, 403 - connecting column, 5 - lifting assembly, 501 - connecting hole, 502 - lifting motor, 503 - lifting gear, 504 - support tooth column, 6 - first limiting assembly, 601 - first limiting groove, 602 - first movable tooth bar, 603 - first limiting gear, 604 - first swing rod, 605 - first slider, 606 - moving plate, 607 - first wedge block, 608 - second wedge block, 609 - lifting rod, 610 - first spring, 611 - movable plate, 612 - chute, 7 - side plate, 8 - support assembly, 801 - second slider, 802 - second swing rod, 803 - transmission gear, 804 - mounting seat, 805 - moving rack, 806 - connecting plate, 807 - threaded cylinder, 808 - lead screw, 809 - adjusting motor, 9 - second limiting assembly, 901 - second limiting groove, 902 - second spring, 903 - second movable tooth bar, 904 - second limiting gear, 905 - connecting groove plate, 906 - connecting column, 907 - connecting rod, 908 - rack plate. Detailed implementation manners

[0038] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0039] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0040] In one embodiment of the present invention, refer to Figure 1 and Figure 3, the anti-collapse support device for road and bridge tunnel construction includes a base 1, support columns 2 are symmetrically arranged on the base 1, a mounting plate 3 is connected to the support columns 2, a top support module 4 is provided on the mounting plate 3, a lifting assembly 5 and a first limiting assembly 6 are provided between the mounting plate 3 and the top support module 4. The first limiting assembly 6 includes a lifting rod 609 movably arranged on the mounting plate 3, a number of second wedge-shaped blocks 608 are distributed on both sides of the lifting rod 609, first limiting grooves 601 are provided in the mounting plate 3 on both sides of the lifting rod 609, a moving plate 606 is slidably arranged in the first limiting grooves 601, a first wedge-shaped block 607 matched with the second wedge-shaped block 608 is provided on one side of the moving plate 606 close to the lifting rod 609, a first slider 605 is slidably connected to the other side of the moving plate 606, a first limiting gear 603 is movably installed in the first limiting grooves 601, one end of a first swing rod 604 is fixedly connected to the first limiting gear 603, the other end of the first swing rod 604 is hinged to the first slider 605, a first movable tooth bar 602 meshed with the first limiting gear 603 is movably arranged in the first limiting grooves 601, one end of the first movable tooth bar 602 is connected to the first limiting grooves 601 through a first spring 610, and the other end of the first movable tooth bar 602 penetrates through the first limiting grooves 601.

[0041] In this embodiment, the top support module 4 can stably fit and support the top structure of the road and bridge tunnel. In the initial position, the first wedge block 607 and the second wedge block 608 cooperate to fix the height of the lifting rod 609, and the height of the top support module 4 can be fixed. When the top support module 4 needs to move upward, push or pull the first movable rack 602 upward or downward. The first spring 610 is stressed and contracts or elongates. The first movable rack 602 drives the first swing rod 604 to rotate by driving the first limit gear 603 to rotate. The first swing rod 604 drives the moving plate 606 to slide away from the lifting rod 609 by driving the first slider 605 to slide with the moving plate 606. The moving plate 606 drives the first wedge block 607 to move away from the lifting rod 609, thereby releasing the cooperation between the first wedge block 607 and the second wedge block 608, and thus releasing the fixation of the lifting rod 609. The lifting assembly 5 drives the top support module 4 to move upward, thereby supporting the top structure of the road and bridge tunnel. Among them, the base 1, the support columns 2, and between the support columns 2 and the mounting plate 3 are all connected by screws and bolts, which is convenient for the disassembly and assembly of the device and improves the practicability of the device. Among them, the side of the first wedge block 607 close to the base 1 is provided with a first inclined surface, the other side of the first wedge block 607 is provided with a first flat surface, the side of the second wedge block 608 away from the base 1 is provided with a second inclined surface that cooperates with the first inclined surface, and the other side of the second wedge block 608 is provided with a second flat surface. Through the connection between the first flat surface and the second flat surface, the height of the lifting rod 609 can be fixed, preventing the lifting rod 609 from moving during the support of the top support module 4 and affecting the stability of the support. The side of the support columns 2 close to each other is provided with a chute 612, and a movable plate 611 is slidably arranged in the chute 612. The movable plate 611 is connected to the end of the lifting rod 609 away from the top support module 4. Through the sliding connection between the movable plate 611 and the chute 612, the lifting direction of the lifting rod 609 can be stably supported.

[0042] In an embodiment of the present invention, refer to Figure 1 , the top support module 4 includes a top plate 402, the top plate 402 is arranged on the side of the mounting plate 3 away from the base 1, and the top plate 402 is a convex arc plate; a cross plate 401, the cross plate 401 is arranged between the mounting plate 3 and the top plate 402, and the cross plate 401 is connected to the lifting rod 609; a connecting column 403, and a plurality of the connecting columns 403 are arranged and connected between the cross plate 401 and the top plate 402.

[0043] In this embodiment, the upwardly convex arc plate can effectively fit and support the top structure of the road and bridge tunnel. Through the connection between the transverse plate 401 and the lifting rod 609, it is convenient for the lifting assembly 5 to adjust the height of the top plate 402 by adjusting the height of the transverse plate 401, so that the top plate 402 can fit and support the top structure of the road and bridge tunnel. Through a plurality of connecting columns 403, the fixed connection between the top plate 402 and the transverse plate 401 can be realized, improving the stability of the top support module 4.

[0044] In one embodiment of the present invention, refer to Figure 1 and Figure 2 The lifting assembly 5 includes a connection hole 501 provided in the mounting plate 3 and the support column 2; a support tooth column 504 movably disposed in the connection hole 501, one end of the support tooth column 504 being connected to the transverse plate 401; a lifting gear 503 movably disposed in the connection hole 501, the lifting gear 503 being connected to the output end of the lifting motor 502.

[0045] In this embodiment, when it is necessary to adjust the height of the top support module 4, the lifting motor 502 drives the lifting gear 503 to rotate. The lifting gear 503 drives the support tooth column 504 to move upward by means of gear-rack meshing. The support tooth column 504 drives the top support module 4 to move upward synchronously, so as to fit and support the top structure of the road and bridge tunnel. When the lifting motor 502 drives the lifting gear 503 to rotate reversely and releases the connection between the first wedge block 607 and the second wedge block 608, the top support module 4 moves downward, and the support of the top structure of the road and bridge tunnel can be released, facilitating the disassembly and assembly of the device.

[0046] In one embodiment of the present invention, refer to Figure 1 、 Figure 4 and Figure 6 On the mutually remote sides of the support columns 2, there are side plates 7, and a support assembly 8 is connected between the side plates 7 and the support columns 2.

[0047] The support assembly 8 includes a mounting base 804 which is arranged on one side of the support column 2 close to the side plate 7. A driving gear 803 is movably arranged on the mounting base 804; a second slider 801 which is slidably arranged on one side of the side plate 7 close to the mounting base 804. One end of the second slider 801 is hinged to one end of a second swing rod 802, and the other end of the second swing rod 802 is fixedly connected to the driving gear 803; a moving rack 805 which is movably arranged in the support column 2 and meshed with the driving gear 803; a connecting plate 806 which is located on one side where the support columns 2 are close to each other and connected to the end of the moving rack 805 away from the side plate 7. A threaded cylinder 807 is installed on the connecting plate 806; a lead screw 808 which is in threaded connection with the threaded cylinder 807, and one end of the lead screw 808 is connected to the output end of an adjusting motor 809 installed on the support column 2.

[0048] In this embodiment, at the initial position, the side plate 7 and the support column 2 are at the closest distance. When the side wall of the road and bridge tunnel needs to be supported, the adjusting motor 809 drives the lead screw 808 to rotate. The lead screw 808 drives the connecting plate 806 to move away from the side plate 7 by means of being in threaded connection with the threaded cylinder 807. The connecting plate 806 drives the moving rack 805 to move synchronously. The moving rack 805 drives the second swing rod 802 to rotate outward by means of being meshed with the driving gear 803. The second swing rod 802 drives the side plate 7 to move away from the support column 2 by driving the second slider 801 to slide on the side plate 7, so as to support the side wall of the road and bridge tunnel and prevent potential safety hazards caused by the collapse of the inner wall of the road and bridge tunnel. Among them, when the side plate 7 approaches the support column 2, the driving gear 803 drives the moving rack 805 to approach the side plate 7, so as to limit the position of the side plate 7 and improve the support effect.

[0049] In an embodiment of the present invention, refer to Figure 1 and Figure 5 , a second limiting assembly 9 is arranged in the support column 2, and the second limiting assembly 9 is distributed on both sides of the moving rack 805.

[0050] The second limiting component 9 includes a second limiting groove 901 which is arranged inside the support column 2 and on both sides of the moving rack 805. A connecting rod 907 is movably arranged in the second limiting groove 901. One end of the connecting rod 907 penetrates through the second limiting groove 901 and is provided with a rack plate 908 which meshes with the moving rack 805; a second limiting gear 904 which is movably arranged in the second limiting groove 901. A connecting groove plate 905 is connected to the outside of the second limiting gear 904. A connecting column 906 is slidably arranged in the connecting groove plate 905. The connecting column 906 is installed at one end of the connecting rod 907 away from the rack plate 908; a second moving tooth bar 903 which is movably arranged in the second limiting groove 901 and meshes with the second limiting gear 904. A second spring 902 is connected between one end of the second moving tooth bar 903 and the second limiting groove 901. The other end of the second moving tooth bar 903 penetrates through the second limiting groove 901.

[0051] In this embodiment, at the initial position, the second spring 902 is in its original length and the rack plate 908 meshes with the moving rack 805, so that the position of the moving rack 805 can be fixed, and thus the position of the side plate 7 can be fixed. When the position of the side plate 7 needs to be adjusted, the second moving tooth bar 903 is pushed into the second limiting groove 901. The second spring 902 is stressed and contracts. The second moving tooth bar 903 drives the second limiting gear 904 to rotate counterclockwise in a gear-rack meshing connection manner. The second limiting gear 904 drives the connecting groove plate 905 to rotate synchronously. The connecting groove plate 905 drives the connecting rod 907 to move towards the inner side of the second limiting groove 901 in a manner of sliding connection with the connecting column 906. The connecting rod 907 drives the rack plate 908 to move synchronously, so as to release the meshing connection between the rack plate 908 and the moving rack 805, and the moving rack 805 is released from fixation, facilitating the flexible adjustment of the side plate 7. When the adjustment of the position of the side plate 7 is completed, the second moving tooth bar 903 is released. The second spring 902 extends and pushes the second moving tooth bar 903 to move outwards. The second moving tooth bar 903 drives the second limiting gear 904 to rotate clockwise in a gear-rack meshing connection manner. The second limiting gear 904 drives the connecting groove plate 905 to rotate synchronously. The connecting groove plate 905 drives the connecting rod 907 to move towards the outer side of the second limiting groove 901 in a manner of sliding connection with the connecting column 906. The connecting rod 907 drives the rack plate 908 to move synchronously, realizing the meshing connection between the rack plate 908 and the moving rack 805, so as to fix the position of the moving rack 805, and further fix the position of the side plate 7, prevent the side wall of the road and bridge tunnel from collapsing, and improve the stability of the support.

[0052] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A road and bridge tunnel construction anti-collapse support device, including a base, symmetrically arranged support columns are provided on the base, and a mounting plate is connected to the support columns, characterized in that, A top support module is provided on the mounting plate. An elevating assembly and a first limiting assembly are provided between the mounting plate and the top support module. The first limiting assembly includes a lifting rod movably arranged on the mounting plate. A number of second wedge blocks are distributed on both sides of the lifting rod. First limiting grooves are provided in the mounting plate on both sides of the lifting rod. A moving plate is slidably arranged in the first limiting grooves. A first wedge block matched with the second wedge blocks is provided on one side of the moving plate close to the lifting rod. A first slider is slidably connected to the other side of the moving plate. A first limiting gear is movably installed in the first limiting grooves. One end of the first limiting gear is fixedly connected to one end of a first swing rod. The other end of the first swing rod is hinged to the first slider. A first movable rack engaged with the first limiting gear is movably arranged in the first limiting grooves. One end of the first movable rack is connected to the first limiting grooves through a first spring. The other end of the first movable rack penetrates through the first limiting grooves. In the initial position, the first wedge block and the second wedge blocks cooperate to fix the height of the top support module by fixing the height of the lifting rod. When the top support module needs to move upward, push up or pull down the first movable rack. The first spring is stressed and contracts or elongates. The first movable rack drives the first limiting gear to rotate, thereby driving the first swing rod to rotate. The first swing rod drives the first slider and the moving plate to slide, driving the moving plate away from the lifting rod. The moving plate drives the first wedge block away from the lifting rod to release the fixation of the lifting rod. The elevating assembly supports the top structure of the road and bridge tunnel by driving the top support module to move upward.

2. The anti-collapse support device for road and bridge tunnel construction according to claim 1, wherein, The top support module includes: A top plate, which is arranged on the side of the mounting plate away from the base. The top plate is a convex arc plate; A cross plate, which is arranged between the mounting plate and the top plate. The cross plate is connected to the lifting rod; Connecting columns, and a number of connecting columns are provided and connected between the cross plate and the top plate.

3. The anti-collapse support device for road and bridge tunnel construction according to claim 2, characterized in that, The elevating assembly includes: Connecting holes, which are provided in the mounting plate and the support columns; A support tooth column, which is movably arranged in the connecting holes. One end of the support tooth column is connected to the cross plate; An elevating gear, which is movably arranged in the connecting holes. The elevating gear is connected to the output end of an elevating motor.

4. The anti-collapse support device for road and bridge tunnel construction according to claim 1, wherein, Side plates are provided on the sides of the support columns away from each other. A support assembly is connected between the side plates and the support columns.

5. The road and bridge tunnel construction anti-collapse support device according to claim 4, characterized in that, The support assembly includes: A mounting seat, which is arranged on the side of the support column close to the side plate. A transmission gear is movably arranged on the mounting seat; A second slider, which is slidably arranged on the side of the side plate close to the mounting seat. The second slider is hinged to one end of a second swing rod. The other end of the second swing rod is fixedly connected to the transmission gear; A moving rack, which is movably arranged in the support column and meshed with the transmission gear; A connecting plate, which is located on the side where the support columns are close to each other and is connected to the end of the moving rack away from the side plate. A threaded cylinder is installed on the connecting plate; A lead screw, which is threadedly connected to the threaded cylinder. One end of the lead screw is connected to the output end of an adjusting motor installed on the support column.

6. The anti-collapse support device for road and bridge tunnel construction according to claim 5, characterized in that, A second limiting component is arranged inside the support column, and the second limiting component is distributed on both sides of the moving rack.

7. The anti-collapse support device for road and bridge tunnel construction according to claim 6, characterized in that, The second limiting component includes: A second limiting groove, which is arranged inside the support column and on both sides of the moving rack. A connecting rod is movably arranged in the second limiting groove. One end of the connecting rod penetrates through the second limiting groove and is provided with a rack plate meshing with the moving rack; A second limiting gear, which is movably arranged in the second limiting groove. A connecting groove plate is connected to the outside of the second limiting gear. A connecting column is slidably arranged in the connecting groove plate, and the connecting column is installed at one end of the connecting rod away from the rack plate; A second movable rack, which is movably arranged in the second limiting groove and is meshed and connected with the second limiting gear. A second spring is connected between one end of the second movable rack and the second limiting groove, and the other end of the second movable rack penetrates through the second limiting groove.

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