Multifunctional excavation rack for single-hole double-track tunnel construction of high-speed railway tunnel

Abstract

The utility model relates to the technical field of tunnel construction, in particular to a multifunctional excavation rack for single-hole double-track tunnel construction of a high-speed railway tunnel. A plurality of supporting assemblies are arranged on the frame body, the multiple supporting assemblies are arranged in the height direction of the frame body at intervals, each supporting assembly comprises a first supporting rod, a second supporting rod, a first supporting plate and a second supporting plate, the first supporting rods and the second supporting rods are both parallel to the first direction, and the first direction is perpendicular to the height direction of the frame body; the first supporting rods are arranged at intervals in the direction perpendicular to the height direction of the frame body and the first direction, one ends of the first supporting rods are fixedly connected to the frame body, the first supporting plates are fixedly connected to the first supporting rods, the second supporting rods are slidably connected to the first direction in the first direction, and the second supporting plates are arranged above the second supporting rods. The device has the effect of being capable of adapting to different construction position requirements of the tunnel in the horizontal direction.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of tunnel construction, in particular to a multifunctional excavation gantry for single-hole double-line tunnel construction of a high-speed railway. BACKGROUND

[0002] In single-hole double-line tunnel construction of a high-speed railway, an excavation gantry is a key device for supporting a working platform during tunnel excavation, improving construction efficiency and safety. The tunnel excavation gantry is built by large steel structures and is used for supporting and stabilizing the tunnel wall to ensure safety and stability during construction. The gantry is also equipped with a working platform and equipment for tunnel excavation.

[0003] According to the related technology, a tunnel construction excavation gantry disclosed in Chinese Patent No. CN211116006U includes a construction plane. The lower surface of the construction plane is fixedly connected with four telescopic supports. A I-shaped connecting rod is fixedly connected between the four telescopic supports. A telescopic system is arranged between the construction plane and the I-shaped connecting rod. The telescopic support includes a first support leg and a second support leg. One end of the second support leg extends into the interior of the first support leg and is slidingly connected therewith. A plurality of limiting holes are formed in one side of the second support leg. A limiting rivet is slidingly connected in the limiting hole. During use, the motor is started. The second fixed part is driven upward by the gear and rack transmission, so that the construction plane moves upward. Then, the limiting rivet is inserted into the limiting hole closest to the first support leg. The motor is turned off. The limiting rivet contacts the first support leg to limit the height of the construction plane. Then, the rotating rod is rotated and moved out. The second inclined rod is stretched to be clamped with the limiting groove. Then, the support rod is inserted into the through hole.

[0004] For the related technology in the above, the device can further drive the construction plane upward by the gear and rack and limit the height of the construction plane. However, the size of the construction plane in the related technology is constant. After construction at a certain position of the tunnel, the gantry needs to be moved to another construction position, which leads to low efficiency. Therefore, there is an urgent need to provide a device that can adapt to the requirements of different construction positions of the tunnel in the horizontal direction. CONTENT OF THE UTILITY MODEL

[0005] In order to adapt to the requirements of different construction positions of the tunnel in the horizontal direction, the application provides a multifunctional excavation gantry for single-hole double-line tunnel construction of a high-speed railway.

[0006] The multifunctional excavation gantry for single-hole double-line tunnel construction of a high-speed railway provided by the application adopts the following technical solution:

[0007] A multifunctional excavation gantry for high-speed railway tunnel single-hole double-line tunnel construction, comprising a frame body and a support assembly;

[0008] A plurality of support assemblies are arranged on the frame body and spaced apart along the height direction of the frame body, the support assembly comprises a first support rod, a second support rod, a first support plate and a second support plate, the first support rod and the second support rod are parallel to the first direction, the first direction is perpendicular to the height direction of the frame body, the first support rod is spaced apart along the direction perpendicular to the height direction of the frame body and the first direction, one end of the first support rod is fixedly connected to the frame body, the first support plate is fixedly connected to the first support rod, the second support rod is slidingly connected to the first direction along the first direction, and the second support plate is arranged above the second support rod.

[0009] By adopting the above technical scheme, since the stress condition of the tunnel side wall changes constantly and the deformation pressure is large, during tunnel construction, personnel move the excavation gantry to the working position and then stand on the workbench to perform construction, if the other working position is far away from the previous construction position, the personnel need to move the excavation gantry again to perform construction, which leads to low work efficiency, therefore, by arranging the support assembly, the personnel stand on the first support plate to work, if the personnel need to move, the second support rod is slid towards the side away from the first support rod, the personnel arrange the second support plate on the plurality of second support rods and can stand on the second support plate to work, so as to improve the movement range of the personnel during work.

[0010] Optionally, a first sliding groove is formed in one end of the first support rod along the first direction, and one end of the second support rod is located in the first sliding groove and slides along the groove wall of the first sliding groove.

[0011] By adopting the above technical scheme, by arranging the first sliding groove and sliding the second support rod along the groove wall of the first sliding groove, the second support rod supports the second support plate, the range of horizontal movement of the personnel is expanded, and the frame body does not need to be moved.

[0012] Optionally, a first limiting block is fixedly connected at the groove opening of the first sliding groove, one end of the second support rod located in the first sliding groove is fixedly connected with a second limiting block, and the first limiting block is located on the sliding path of the second limiting block, so that the first limiting block blocks the second support rod from sliding out of the first sliding groove.

[0013] By adopting the above technical scheme, in order to avoid the second support rod from sliding out of the first sliding groove, a first limiting block is fixedly connected at the groove opening of the first sliding groove, so that the first limiting block blocks the second support rod from sliding out of the first sliding groove, thereby avoiding the second support rod from sliding out of the first sliding groove by arranging the first limiting block and the second limiting block.

[0014] Optionally, the second support rod is rotatably connected with a ball at an end away from the first support rod.

[0015] By adopting the above technical scheme, when the first support rod slides out of the first sliding groove, in order to improve the stability of the personnel standing on the first support plate or the second support plate, the end of the second support rod is in contact with the tunnel side wall or the tunnel face, and since the tunnel side wall or the tunnel face may have unevenness, the ball is arranged on the second support rod, the contact area of the second support rod and the tunnel side wall or the tunnel face is further improved, so that the ball is in contact with the tunnel side wall or the tunnel face, thereby improving the stability of the whole frame.

[0016] Optionally, the frame is rotatably connected with a roller at the bottom.

[0017] By adopting the above technical scheme, the roller is arranged, which facilitates the movement of the frame to the construction position by the personnel.

[0018] Optionally, a connecting column is arranged between the second support plate and the second support rod, a second sliding groove is arranged on the side of the first support plate away from the frame in the first direction and capable of accommodating the second support plate, and when the second support rod slides into the first sliding groove in the first direction, the second support plate slides into the second sliding groove.

[0019] By adopting the above technical scheme, when the second support plate is not needed, the second support plate slides into the second sliding groove when the second support rod slides into the first sliding groove in the first direction, so that the second support plate can be accommodated by the second sliding groove when the second support plate is not used.

[0020] Optionally, one end of the connecting column is fixedly connected to the end of the second support rod away from the frame, and one end of the second support plate is rotatably connected to the connecting column, and the second support plate is perpendicular to the frame and the first direction along the rotation axis of the connecting column.

[0021] By adopting the above technical scheme, the second support plate is rotatably connected to the connecting column, so that the second support plate is rotated to a non-parallel state with the first support plate, thereby blocking the dust on the tunnel side wall by the second support plate, and the personnel standing on the first support plate can be protected by the second support plate.

[0022] Optionally, a third sliding groove is arranged on the side of the first support plate away from the first support rod, and the third sliding groove is in communication with the second sliding groove to provide rotation for the second support plate by the third sliding groove.

[0023] By adopting the technical scheme, in order to smoothly rotate the second support plate, a third sliding groove is formed on the side of the first support plate away from the first support rod, the third sliding groove is communicated with the second sliding groove, and when the second support plate is still overlapped on the second sliding groove, the rotation of the second support plate can still be realized.

[0024] In summary, the present application has at least one of the following beneficial technical effects:

[0025] 1. The present application sets up a support assembly, personnel stand on the first support plate to work, if the personnel need to move, the second support rod slides away from the first support rod, the personnel can stand on the second support plate to work, so as to improve the activity range of the personnel when working;

[0026] 2. The present application sets up a second sliding groove on the second support plate, when the second support plate is not needed, the second support plate can be stored through the second sliding groove;

[0027] 3. The present application sets up a rotatable second support plate to block the dust in the tunnel by the second support plate. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is the overall structure schematic diagram of a multifunctional excavation gantry for high-speed railway tunnel single-hole double-line tunnel construction;

[0029] Figure 2 is the side view of the multifunctional excavation gantry of the present application;

[0030] Figure 3 is the structure schematic diagram of the first support rod and the second support rod of the present application;

[0031] Figure 4 is the sectional view of the first support rod and the second support rod of the present application;

[0032] Figure 5 is the structure schematic diagram of the support assembly of the present application;

[0033] Figure 6 is the structure schematic diagram of the ladder and the frame of the present application;

[0034] Figure 7 is the structure schematic diagram of the connection between the first support plate and the second support plate of the present application;

[0035] Figure 8 is the structure schematic diagram of the support assembly of the present application Figure 7 is the enlarged view of part A of the present application.

[0036] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Support assembly; 21. First support rod; 211. First slide groove; 212. First limiting block; 22. Second support rod; 221. Second limiting block; 222. Sphere; 23. First support plate; 231. Channel; 232. Second slide groove; 233. Third slide groove; 24. Second support plate; 241. Rotating seat; 242. Rotating shaft; 25. Ladder; 3. Roller; 4. Connecting column; 5. Fixing component. Detailed Implementation

[0037] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0038] Example 1:

[0039] This application discloses a multi-functional excavation platform for the construction of single-bore double-track tunnels in high-speed railways. (Refer to...) Figure 1 A multi-functional excavation platform for the construction of single-bore double-track tunnels in high-speed railways includes a frame 1 and support components 2. Multiple support components 2 are provided on the frame 1, spaced apart along the height direction of the frame 1. Each support component 2 includes a first support rod 21, a second support rod 22, a first support plate 23, and a second support plate 24. Both the first and second support rods 21 and 22 are parallel to a first direction, which is perpendicular to the height direction of the frame 1. One end of the first support rod 21 is fixedly connected to the frame 1, and the first support plate 23 is fixedly connected to the first support rod 21. The second support rod 22 is slidably connected to the first direction. The second support plate 24 is positioned above the second support rod 22. Personnel stand on the first support plate 23 to work. If personnel need to move, the second support rod 22 is slid, allowing personnel to stand on the second support plate 24 to work.

[0040] Reference Figure 2 In order to further increase the range of personnel movement, support components 2 are provided on both sides of the frame 1, and support components 2 are also provided on the side of the frame 1 near the tunnel face. The support components 2 on both sides of the frame 1 and the support components 2 near the tunnel face of the frame 1 are adjacent to each other. The second support rod 22 on the side near the tunnel face is slidably connected to the first support rod 21 along a direction that is both perpendicular to the first direction and perpendicular to the height direction of the frame 1.

[0041] Reference Figure 1 and Figure 2In the embodiment, in order to further improve the stability of the first support plate 23 and the second support plate 24, the support assembly 2 located on both sides of the frame body 1 is provided with a plurality of first support rods 21 which are spaced apart along a direction perpendicular to the first direction and perpendicular to the height direction of the frame body 1, and in the support assembly 2 located on the side close to the tunnel face of the frame body 1, the first support rods 21 are spaced apart along a direction perpendicular to the first direction, so that the plurality of first support rods 21 stably support the first support plate 23, and the second support plate 24 is lapped on the plurality of second support rods 22 and is stably supported by the plurality of second support rods 22.

[0042] For the convenience of description, in the embodiment, the first support rod 21 is the first support rod 21 arranged on both sides of the frame body 1 without special description.

[0043] Referring to Figure 3 , Figure 4 and Figure 5 , in order to further enable the second support rod 22 to slide, the first support rod 21 is provided with a first sliding groove 211 at one end along the first direction, one end of the second support rod 22 is located in the first sliding groove 211 and slides along the groove wall of the first sliding groove 211, and the other end is located outside the first sliding groove 211, so that the second support rod 22 slides out of the first sliding groove 211, and personnel stand on the second support plate 24 to work.

[0044] Referring to Figure 4 , in order to avoid the second support rod 22 from sliding out of the first sliding groove 211, the first sliding groove 211 is fixedly connected with a first limiting block 212 at the groove opening, one end of the second support rod 22 located in the first sliding groove 211 is fixedly connected with a second limiting block 221, and the first limiting block 212 is located on the sliding path of the second limiting block 221, so that the second support rod 22 is blocked by the first limiting block 212 from sliding out of the first sliding groove 211, thereby avoiding the second support rod 22 from sliding out of the first sliding groove 211 by arranging the first limiting block 212 and the second limiting block 221.

[0045] Referring to Figure 4 , when the first support rod 21 slides out of the first sliding groove 211, in order to improve the stability of personnel standing on the first support plate 23 or the second support plate 24, the end of the second support rod 22 can be in contact and abutment with the tunnel side wall or the tunnel face. Since the tunnel side wall or the tunnel face can have unevenness, in order to further improve the contact area between the second support rod 22 and the tunnel side wall or the tunnel face, a spherical body 222 is rotatably connected to one end of the second support rod 22 away from the first support rod 21, so that the spherical body 222 is in contact and abutment with the tunnel side wall or the tunnel face, thereby improving the stability of the entire frame body 1.

[0046] Referring to Figure 6In order to facilitate the movement of the frame body 1, a plurality of rollers 3 are rotatably connected to the bottom of the frame body 1 to facilitate the movement of the frame body 1 into the tunnel.

[0047] Referring to Figure 6 In order to facilitate the work of personnel on the first support plate 23, a ladder 25 is further provided on the first support plate 23, and a ladder 25 is provided between two adjacent first support plates 23 in the height direction of the frame body 1. One end of the ladder 25 is lapped on the first support plate 23, and the other end abuts against the frame body 1. A passage 231 is provided on each support plate for personnel to pass through.

[0048] Embodiment two:

[0049] Referring to Figure 7 And Figure 8 When the second support plate 24 is not needed, in order to facilitate storage, a connecting column 4 is provided between the second support plate 24 and the second support rod 22. A second sliding groove 232 is provided on the side of the first support plate 23 away from the frame body 1 in the first direction to accommodate the second support plate 24. When the second support rod 22 slides into the first sliding groove 211 in the first direction, the second support plate 24 slides into the second sliding groove 232. Thus, when the second support plate 24 is not used, it can be stored in the second sliding groove 232.

[0050] Referring to Figure 7 And Figure 8 When the second support plate 24 is needed for work, the second support rod 22 slides away from the first support rod 21 in the first direction, driving the second support plate 24 to slide in the first direction. When personnel stand on the second support plate 24, one side of the second support plate 24 is supported by the support column, and the other side of the second support plate 24 is supported by the first sliding groove 211 of the first support plate 23, thereby improving the stability of personnel standing on the second support plate 24.

[0051] Referring to Figure 8 In order to reduce the dust on the side wall of the tunnel from falling on the first support plate 23 during work, one end of the connecting column 4 is fixedly connected to the end of the second support rod 22 away from the frame body 1, and one end of the second support plate 24 is rotatably connected to the connecting column 4. The second support plate 24 is perpendicular to the frame body 1 and perpendicular to the first direction along the rotation axis of the connecting column 4. In order to enable the second support plate 24 to rotate to the outside of the second sliding groove 232, a third sliding groove 233 is provided on the side of the first support plate 23 away from the first support rod 21. The third sliding groove 233 communicates with the second sliding groove 232 to provide the second support plate 24 with a rotation path through the third sliding groove 233. The second support plate 24 is rotated to a non-parallel state with the first support plate 23, thereby blocking the dust on the side wall of the tunnel by the second support plate 24, and protecting the personnel standing on the first support plate 23 by the second support plate 24.

[0052] With reference to Figure 8 Specifically, the second support plate 24 is fixedly connected with a rotating seat 241 on the side close to the connecting column 4, the rotating seat 241 is rotationally connected to the connecting column 4 through a rotating shaft 242, the rotating shaft 242 is perpendicular to the frame body 1 and the first direction, the rotating shaft 242 is provided through and fixedly connected to the support column, the rotating seat 241 is sleeved and rotationally connected to the rotating shaft 242, in order to fix the second support plate 24 and the connecting column 4, the multifunctional excavation gantry for single-hole double-line tunnel construction of high-speed railway tunnel further comprises a fixing piece 5, one end of the fixing piece 5 abuts against the rotating shaft 242 after penetrating through the rotating seat 241, the fixing piece 5 is screwedly connected to the rotating seat 241, and the second support plate 24 and the connecting column 4 are fixed by the fixing piece 5 when the second support plate 24 is rotated to a required angle.

[0053] The implementation principle of the embodiment of the multifunctional excavation gantry for single-hole double-line tunnel construction of high-speed railway tunnel is as follows: during construction, personnel push the frame body 1 to the tunnel construction position, slide the second support rod 22 away from the side close to the first support rod 21, slide the second support plate 24 out of the second sliding groove 232, and the personnel can stand on the first support plate 23 and the second support plate 24 to perform tunnel work, when the second support plate 24 is not needed, slide the second support rod 22 towards the first sliding groove 211, drive the second support plate 24 to slide into the second sliding groove 232 of the first support plate 23 for storage, and when the second support plate 24 is rotated to be non-parallel to the first support plate 23, the second support plate 24 can block dust in the tunnel and can protect the personnel.

[0054] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A multifunctional excavation gantry for high-speed railway tunnel single-hole double-line tunnel construction, characterized in that: The rack body (1) and the support assembly (2) are included. A plurality of support assemblies (2) are arranged on the rack body (1) and are spaced apart along the height direction of the rack body (1). The support assembly (2) includes a first support rod (21), a second support rod (22), a first support plate (23), and a second support plate (24). The first support rod (21) and the second support rod (22) are parallel to the first direction, which is perpendicular to the height direction of the rack body (1). The first support rod (21) is spaced apart along a direction perpendicular to the height direction of the rack body (1) and perpendicular to the first direction. One end of the first support rod (21) is fixedly connected to the rack body (1). The first support plate (23) is fixedly connected to the first support rod (21). The second support rod (22) is slidingly connected to the first direction. The second support plate (24) is arranged above the second support rod (22).

2. The multifunctional excavation gantry for single-hole double-line tunnel construction of high-speed railway tunnels according to claim 1, characterized in that: One end of the first support rod (21) is provided with a first sliding groove (211) along the first direction. One end of the second support rod (22) is located in the first sliding groove (211) and slides along the groove wall of the first sliding groove (211).

3. The multifunctional excavation gantry for single-hole double-line tunnel construction of high-speed railway tunnels according to claim 2, characterized in that: The first sliding groove (211) is fixedly connected with a first limiting block (212) at the slot opening. One end of the second support rod (22) located in the first sliding groove (211) is fixedly connected with a second limiting block (221). The first limiting block (212) is located on the sliding path of the second limiting block (221) to block the second support rod (22) from sliding out of the first sliding groove (211) by the first limiting block (212).

4. The multifunctional excavation gantry for single-hole double-line tunnel construction of high-speed railway tunnels according to claim 1, characterized in that: One end of the second support rod (22) away from the first support rod (21) is rotatably connected with a spherical body (222).

5. The multifunctional excavation gantry for single-hole double-line tunnel construction of high-speed railway tunnels according to claim 1, characterized in that: The rack body (1) is rotatably connected with a roller (3) at the bottom.

6. The multifunctional excavation gantry for single-hole double-line tunnel construction of high-speed railway tunnels according to claim 2, characterized in that: A connecting column (4) is arranged between the second support plate (24) and the second support rod (22). A second sliding groove (232) accommodating the second support plate (24) is formed in the first direction on the side of the first support plate (23) away from the rack body (1). When the second support rod (22) slides in the first direction towards the first sliding groove (211), the second support plate (24) slides towards the second sliding groove (232).

7. The multifunctional excavation gantry for single-hole double-line tunnel construction of high-speed railway tunnels according to claim 6, characterized in that: One end of the connecting column (4) is fixedly connected to one end of the second support rod (22) away from the rack body (1). One end of the second support plate (24) is rotatably connected to the connecting column (4). The second support plate (24) is perpendicular to the rack body (1) and perpendicular to the first direction along the rotation axis of the connecting column (4).

8. The multifunctional excavation gantry for single-hole double-line tunnel construction of high-speed railway tunnels according to claim 7, characterized in that: A third sliding groove (233) is formed in the side of the first support plate (23) away from the first support rod (21). The third sliding groove (233) is in communication with the second sliding groove (232) to provide rotation for the second support plate (24) through the third sliding groove (233).

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