Supporting device for tunnel construction

Abstract

The invention discloses a supporting device for tunnel construction, and relates to the technical field of tunnel construction.The supporting device comprises a mounting plate vertically connected to a bottom plate, and a first supporting mechanism for supporting the middle of the top of a tunnel is arranged on the front side of the mounting plate; second supporting mechanisms for supporting the side face of the top of the tunnel are arranged on the two sides of the first supporting mechanism correspondingly, and the first supporting mechanism drives the second supporting mechanisms to work. By arranging a fixing structure, a first arc-shaped supporting plate moves upwards to support the middle of the top of the tunnel, a second arc-shaped supporting plate moves outwards to support the side face of the top of the tunnel, and supporting side plates move outwards to support the two sides of the bottom of the tunnel; a stabilizing plate and a telescopic plate move downwards to be in contact with the ground so as to fix the whole device, and the stability of the device during supporting is improved; the device is simple and reliable in structure, good in tunnel construction supporting effect, convenient to control and suitable for popularization.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and particularly relates to a support device for tunnel construction. Background Art

[0002] A tunnel is an engineering structure buried in the ground, which is a form of human utilization of underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, and mine tunnels. During the tunnel construction process, problems such as insufficient bearing capacity of the foundation and corresponding tunnel instability and collapse often occur due to the lack of a firm foundation support during the formation of new stresses. This seriously affects personal and equipment safety and hinders the construction progress. In the actual construction process, to solve the above practical problems such as tunnel instability and collapse, it is necessary to quickly and effectively support the excavation section in a timely manner during the tunnel excavation process, and a support device for tunnel construction needs to be used; The existing support devices usually support the top of the tunnel through steel rods to prevent the tunnel from collapsing. However, the existing devices are difficult to support the two side surfaces at the bottom of the tunnel construction, and the supporting area of the steel rods is too small, resulting in insufficient comprehensiveness of the tunnel support, insufficient supporting force of the construction tunnel, and easy collapse of the construction tunnel, causing casualties, thus affecting the overall supporting effect and the construction efficiency of the tunnel, and having poor practicability; Based on this, we propose a support device for tunnel construction to solve the above problems. Summary of the Invention

[0003] The present invention aims at the above problems and provides a support device for tunnel construction to solve the problem that the existing support devices are difficult to support the two side surfaces at the bottom of the tunnel construction.

[0004] The technical solution of the present invention is: a support device for tunnel construction, including a bottom plate and a mounting plate; A mounting plate is vertically connected to the bottom plate, and a first support mechanism for supporting the middle of the tunnel top is provided on the front side of the mounting plate; Second support mechanisms for supporting the side surfaces of the tunnel top are provided on both sides of the first support mechanism, and the first support mechanism drives the second support mechanisms to work; A third support mechanism for supporting the two sides of the tunnel bottom is provided below the first support mechanism, and the second support mechanisms drive the third support mechanism to work; A fixing mechanism for stabilizing the support device is provided under the bottom plate, and the second support mechanisms drive the fixing mechanism to work.

[0005] Further, the first support mechanism includes a driving member, a first rotating shaft, a worm, a fixing plate, a worm gear, a second rotating shaft, a first rotating rod, a second rotating rod, a first moving rod, and a first arc-shaped support plate. Two fixing plates are respectively provided at the rear side of the mounting plate. A first rotating shaft is rotatably provided between the two fixing plates. One end of the first rotating shaft rotatably penetrates through one of the fixing plates and is connected to a driving member; A worm is sleeved on the first rotating shaft. A worm gear is meshed and connected to one side of the worm. The first end of a second rotating shaft is connected to the worm gear. The second end of the second rotating shaft rotatably penetrates through the mounting plate and is vertically connected to the middle of a first rotating rod. The first end of the first rotating rod is rotatably connected to the first end of a second rotating rod. The second end of the second rotating rod is rotatably connected to the first end of a first moving rod. The first moving rod is slidably connected to the mounting plate. The second end of the first moving rod is connected to a first arc-shaped support plate; The first rotating rod drives the second support mechanism to work through rotation.

[0006] Further, the second support mechanism includes a second arc-shaped support plate, a third rotating rod, a first slider, a first sliding column, a V-shaped rod, a third rotating shaft, a second sliding column, a second moving rod, a second slider, and a third moving rod. The second end of the first rotating rod is rotatably connected to the first end of a third rotating rod. The second end of the third rotating rod is rotatably connected to the top of a first slider. The first slider is slidably connected to the mounting plate. The front side of the first slider is connected to a first sliding column; The first ends of third rotating shafts are rotatably connected to the mounting plate on both sides of the first slider. The second ends of the third rotating shafts are connected to V-shaped rods. First through grooves are provided on the inner rods of the two V-shaped rods. The first sliding column is slidably arranged in the two first through grooves. Second through grooves are provided on the outer rods of the two V-shaped rods; Second sliders are respectively and obliquely slidably arranged on the mounting plate on both sides of the first moving rod. The bottom of the second slider is hinged to the first end of a second moving rod. The second end of the second moving rod is vertically connected to a second sliding column. The second sliding column is slidably arranged in the second through groove. The top of the second slider is connected to the first end of a third moving rod. The second end of the third moving rod is connected to a second arc-shaped support plate; The first slider drives the third support mechanism and the driving and fixing mechanism to work respectively through movement.

[0007] Further, the third support mechanism includes a support side plate, a gear, a fourth rotating shaft, a fourth rotating rod, a fifth rotating rod, and a moving plate. Rack teeth are provided on both sides of the first slider. The first ends of fourth rotating shafts are rotatably connected to the mounting plates on both sides of the first slider. A gear is sleeved on the second end of the fourth rotating shaft. The gear is meshed with the rack teeth. The second end of the fourth rotating shaft penetrates through the gear and is vertically connected to the first end of a fourth rotating rod. The second end of the fourth rotating rod is rotatably connected to the first end of a fifth rotating rod. The second end of the fifth rotating rod is hinged to a moving plate. The moving plate is slidably connected to the mounting plate. The outer side of the moving plate is connected to the support side plate.

[0008] Further, the fixing mechanism includes a stabilizing plate, a fourth moving rod, a telescopic rod, and a telescopic plate. A through groove is provided under the bottom plate. The first end of a fourth moving rod is connected to the bottom of the first slider. The second end of the fourth moving rod slidably penetrates through the bottom plate and is vertically connected to a stabilizing plate. A third sliding groove is provided on the bottom plate below the moving plate. The first end of a telescopic rod is vertically connected to the bottom of the moving plate. The second end of the telescopic rod slidably penetrates through the third sliding groove and is vertically connected to the upper side of the telescopic end of a telescopic plate. The fixed ends of the two telescopic plates are respectively connected to both sides of the same stabilizing plate.

[0009] Further, a first T-shaped groove is provided on the mounting plate behind the first moving rod. A first T-shaped protrusion is provided on the first moving rod and is slidably connected to the first T-shaped groove.

[0010] Further, a second T-shaped groove is provided on the mounting plate behind the first slider. A second T-shaped protrusion is provided on the first slider and is slidably connected to the second T-shaped groove.

[0011] Further, a third T-shaped groove is provided on the mounting plate behind the second slider. A third T-shaped protrusion is provided on the second slider and is slidably connected to the third T-shaped groove.

[0012] Further, a fourth T-shaped groove is provided on the mounting plate behind the moving plate. A fourth T-shaped protrusion is provided on the moving plate and is slidably connected to the fourth T-shaped groove.

[0013] Advantages of the present invention: The present invention realizes the upward movement of the first arc-shaped support plate for supporting the middle of the tunnel top by setting the first support mechanism; by setting the second support mechanism, while the first arc-shaped support plate moves upward for supporting the middle of the tunnel top, the second arc-shaped support plate moves outward for supporting the side of the tunnel top, increasing the support area of the tunnel top and improving the support effect on the tunnel top; by setting the third support mechanism, while the first arc-shaped support plate moves upward for supporting the middle of the tunnel top and the second arc-shaped support plate moves outward for supporting the side of the tunnel top, the support side plate moves outward for supporting both sides of the tunnel bottom, thus making the support for the tunnel more comprehensive and ensuring sufficient support force for the construction tunnel; by setting the fixing structure, while the first arc-shaped support plate moves upward for supporting the middle of the tunnel top, the second arc-shaped support plate moves outward for supporting the side of the tunnel top and the support side plate moves outward for supporting both sides of the tunnel bottom, the stabilizing plate and the telescopic plate move downward and then contact the ground for fixing the whole device, increasing the stability of the device during support, and the telescopic plate extends to increase the contact area with the ground, thereby increasing the overall support effect of the device, preventing the construction tunnel from collapsing easily due to insufficient support force, also increasing the construction efficiency of the tunnel and improving the practicality of the device; the structure of the present invention is simple and reliable, has a good support effect on tunnel construction, is convenient to control, and is suitable for popularization.

[0014] In addition to the purposes, features and advantages described above, the present invention has other purposes, features and advantages. The following will refer to the drawings to further elaborate on the present invention in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0016] Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the installation schematic diagram of the driving member of the present invention; Figure 3 is the installation schematic diagram of the telescopic rod of the present invention; Figure 4 is the installation schematic diagram of the stabilizing plate of the present invention; Figure 5 is the installation schematic diagram of the second sliding column of the present invention.

[0017] Reference Signs: 1 is the bottom plate, 2 is the mounting plate, 21 is the driving member, 22 is the first rotating shaft, 23 is the worm, 24 is the fixing plate, 25 is the worm gear, 26 is the second rotating shaft, 27 is the first rotating rod, 28 is the second rotating rod, 29 is the first moving rod, 210 is the first arc-shaped support plate, 211 is the first T-shaped projection, 3 is the second arc-shaped support plate, 31 is the third rotating rod, 32 is the first slider, 33 is the first sliding column, 34 is the V-shaped rod, 35 is the third rotating shaft, 36 is the second sliding column, 37 is the second moving rod, 38 is the second slider, 39 is the third moving rod, 310 is the second T-shaped projection, 311 is the third T-shaped projection, 4 is the support side plate, 41 is the gear, 42 is the fourth rotating shaft, 43 is the fourth rotating rod, 44 is the fifth rotating rod, 45 is the moving plate, 46 is the fourth T-shaped projection, 5 is the stabilizing plate, 51 is the fourth moving rod, 52 is the telescopic rod, 53 is the telescopic plate. Detailed implementation mode

[0018] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with 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.

[0019] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0020] Refer to Figures 1 to 5 , a support device for tunnel construction, comprising a bottom plate 1 and a mounting plate 2; A mounting plate 2 is vertically connected to the bottom plate 1. The bottom plate 1 is used to mount the mounting plate 2, and a first support mechanism for supporting the middle of the tunnel top is installed on the front side of the mounting plate 2; Second support mechanisms for supporting the sides of the tunnel top are installed on both sides of the first support mechanism, and the first support mechanism drives the second support mechanisms to work; A third support mechanism for supporting both sides of the tunnel bottom is installed below the first support mechanism, and the second support mechanism drives the third support mechanism to work; A fixing mechanism for stably supporting the device is installed under the bottom plate 1, and the second support mechanism drives the fixing mechanism to work; The first support mechanism includes a driving member 21, a first rotating shaft 22, a worm 23, a fixing plate 24, a worm gear 25, a second rotating shaft 26, a first rotating rod 27, a second rotating rod 28, a first moving rod 29, and a first arc-shaped support plate 210. Two fixing plates 24 are respectively installed on the rear side of the mounting plate 2. The mounting plate 2 is used for installing the fixing plates 24. The first rotating shaft 22 is rotatably installed between the two fixing plates 24. The fixing plate 24 is used for installing the first rotating shaft 22. One end of the first rotating shaft 22 rotatably penetrates through one of the fixing plates 24 and is connected to the driving member 21. The driving member 21 is a rotating handle; The worm 23 is fixedly sleeved on the first rotating shaft 22. One side of the worm 23 is meshed and connected with the worm gear 25. The first end of the second rotating shaft 26 is connected to the worm gear 25. The second end of the second rotating shaft 26 rotatably penetrates through the mounting plate 2 and is vertically connected to the middle of the first rotating rod 27. The first end of the first rotating rod 27 is rotatably connected to the first end of the second rotating rod 28. The second end of the second rotating rod 28 is rotatably connected to the first end of the first moving rod 29. The first moving rod 29 is slidably connected to the mounting plate 2. The second end of the first moving rod 29 is connected to the first arc-shaped support plate 210; The first rotating rod 27 drives the second support mechanism to work through rotation; Preferably, the rotation of the driving member 21 drives the rotation of the first rotating shaft 22. The rotation of the first rotating shaft 22 drives the rotation of the worm 23. The rotation of the worm 23 drives the rotation of the worm gear 25. The rotation of the worm gear 25 drives the rotation of the second rotating shaft 26. The rotation of the second rotating shaft 26 drives the rotation of the first rotating rod 27. The rotation of the first rotating rod 27 drives the rotation of the second rotating rod 28. The rotation of the second rotating rod 28 drives the movement of the first moving rod 29. The movement of the first moving rod 29 drives the movement of the first arc-shaped support plate 210. The movement of the first arc-shaped support plate 210 is used to support the middle of the tunnel top; The second support mechanism includes a second arc-shaped support plate 3, a third rotating rod 31, a first slider 32, a first sliding column 33, a V-shaped rod 34, a third rotating shaft 35, a second sliding column 36, a second moving rod 37, a second slider 38, and a third moving rod 39. The second end of the first rotating rod 27 is rotatably connected to the first end of the third rotating rod 31. The second end of the third rotating rod 31 is rotatably connected to the top of the first slider 32. The first slider 32 is slidably connected to the mounting plate 2. The front side of the first slider 32 is connected to the first sliding column 33; The first ends of the third rotating shafts 35 are rotatably connected to the mounting plate 2 on both sides of the first slider 32. The second ends of the third rotating shafts 35 are connected to the V-shaped rods 34. The third rotating shafts 35 are used for installing the V-shaped rods 34. The first sliding columns 33 are slidably connected to the first chutes provided in the inner rods of the two V-shaped rods 34. The second chutes are provided in the outer rods of the two V-shaped rods 34; On both sides of the first moving rod 29, second sliders 38 are installed in an inclined and sliding manner on the mounting plates 2. The bottom of the second slider 38 is hinged to the first end of the second moving rod 37. The second end of the second moving rod 37 is vertically connected to the second sliding column 36. The second sliding column 36 is slidably connected and arranged in the second chute. The top of the second slider 38 is connected to the first end of the third moving rod 39. The second end of the third moving rod 39 is connected to the second arc-shaped support plate 3; The first slider 32 drives the third support mechanism and the driving fixing mechanism to work through movement respectively; Preferably, the rotation of the first rotating rod 27 drives the rotation of the third rotating rod 31. The rotation of the third rotating rod 31 drives the movement of the first slider 32. The movement of the first slider 32 drives the movement of the first sliding column 33. The movement of the first sliding column 33 drives the rotation of the inner rod of the V-shaped rod 34. The rotation of the inner rod of the V-shaped rod 34 drives the rotation of the V-shaped rod 34 around the third rotating shaft 35. The rotation of the V-shaped rod 34 drives the rotation of the outer rod of the V-shaped rod 34. The rotation of the outer rod of the V-shaped rod 34 drives the movement of the second sliding column 36. The movement of the second sliding column 36 drives the movement of the second moving rod 37. The movement of the second moving rod 37 drives the movement of the second slider 38. The movement of the second slider 38 drives the movement of the third moving rod 39. The movement of the third moving rod 39 drives the movement of the second arc-shaped support plate 3. The movement of the second arc-shaped support plate 3 is used to support the side surface of the tunnel top, increasing the support area of the tunnel top and improving the support effect on the tunnel top; The third support mechanism includes support side plates 4, gears 41, fourth rotating shafts 42, fourth rotating rods 43, fifth rotating rods 44 and moving plates 45. Rack teeth are installed on both sides of the first slider 32. The first ends of the fourth rotating shafts 42 are rotatably connected to the mounting plates 2 on both sides of the first slider 32. The second ends of the fourth rotating shafts 42 are fixedly sleeved with gears 41. The gears 41 are meshed and connected with the rack teeth. The second ends of the fourth rotating shafts 42 penetrate through the gears 41 and are vertically connected to the first ends of the fourth rotating rods 43. The second ends of the fourth rotating rods 43 are rotatably connected to the first ends of the fifth rotating rods 44. The second ends of the fifth rotating rods 44 are hinged to the moving plates 45. The moving plates 45 are slidably connected to the mounting plates 2. The outer sides of the moving plates 45 are connected with the support side plates 4; Preferably, the movement of the first slider 32 drives the movement of the rack teeth. The movement of the rack teeth drives the rotation of the gears 41. The rotation of the gears 41 drives the rotation of the fourth rotating shafts 42. The rotation of the fourth rotating shafts 42 drives the rotation of the fourth rotating rods 43. The rotation of the fourth rotating rods 43 drives the rotation of the fifth rotating rods 44. The rotation of the fifth rotating rods 44 drives the movement of the moving plates 45. The movement of the moving plates 45 drives the movement of the support side plates 4. The movement of the support side plates 4 is used to support both sides of the tunnel bottom, and thus the support for the tunnel is more comprehensive, making the support force of the construction tunnel sufficient; The fixing mechanism includes a stabilizing plate 5, a fourth moving rod 51, a telescopic rod 52, and a telescopic plate 53. There is a through groove under the bottom plate 1. The bottom of the first slider 32 is connected to the first end of the fourth moving rod 51. The second end of the fourth moving rod 51 slidably passes through the bottom plate 1 and is vertically connected to the stabilizing plate 5; There is a through third chute on the bottom plate 1 below the moving plate 45. The first end of the telescopic rod 52 is vertically connected under the moving plate 45. The second end of the telescopic rod 52 slidably passes through the third chute and is vertically connected to the upper side of the telescopic end of the telescopic plate 53. The fixed ends of the two telescopic plates 53 are respectively connected to both sides of the same stabilizing plate 5; Preferably, the movement of the first slider 32 drives the movement of the fourth moving rod 51. The movement of the fourth moving rod 51 drives the movement of the stabilizing plate 5 and the telescopic plate 53. The movement of the stabilizing plate 5 and the telescopic plate 53 then contacts the ground for fixing the whole device, increasing the stability when the device is supported; At the same time, the movement of the moving plate 45 drives the movement of the telescopic rod 52. The movement of the telescopic rod 52 drives the telescopic plate 53 to extend. The extension of the telescopic plate 53 then increases the contact area with the ground, thereby increasing the supporting effect of the whole device, preventing the construction tunnel from collapsing easily due to insufficient supporting force, also increasing the construction efficiency of the tunnel, and improving the practicability of the device; There is a first T-shaped groove on the mounting plate 2 behind the first moving rod 29. A first T-shaped protrusion 211 matching the first T-shaped groove is installed on the first moving rod 29. The first T-shaped protrusion 211 is slidably connected and arranged in the first T-shaped groove. The cooperation of the first T-shaped groove and the first T-shaped protrusion 211 ensures the smooth sliding of the first moving rod 29 on the mounting plate 2 behind the first moving rod 29; There is a second T-shaped groove on the mounting plate 2 behind the first slider 32. A second T-shaped protrusion 310 matching the second T-shaped groove is installed on the first slider 32. The second T-shaped protrusion 310 is slidably connected and arranged in the second T-shaped groove. The cooperation of the second T-shaped groove and the second T-shaped protrusion 310 ensures the smooth sliding of the first slider 32 on the mounting plate 2 behind the first slider 32; There is a third T-shaped groove on the mounting plate 2 behind the second slider 38. A third T-shaped protrusion 311 matching the third T-shaped groove is installed on the second slider 38. The third T-shaped protrusion 311 is slidably connected and arranged in the third T-shaped groove. The cooperation of the third T-shaped groove and the third T-shaped protrusion 311 ensures the smooth sliding of the second slider 38 on the mounting plate 2 behind the second slider 38; On the mounting plate 2 at the rear side of the moving plate 45, there is a fourth T-shaped groove. A fourth T-shaped protrusion 46 that mates with the fourth T-shaped groove is installed on the moving plate 45. The fourth T-shaped protrusion 46 is slidably connected and arranged in the fourth T-shaped groove. The cooperation between the fourth T-shaped groove and the fourth T-shaped protrusion 46 ensures the smooth sliding of the moving plate 45 on the mounting plate 2 at the rear side of the moving plate 45.

[0021] The usage method of the present invention: When it is necessary to support a construction tunnel, move the support device to the usage location. The staff rotates the driving member 21. The rotation of the driving member 21 drives the rotation of the first rotating shaft 22. The rotation of the first rotating shaft 22 drives the rotation of the worm 23. The rotation of the worm 23 drives the rotation of the worm gear 25. The rotation of the worm gear 25 drives the rotation of the second rotating shaft 26. The rotation of the second rotating shaft 26 drives the rotation of the first rotating rod 27. The rotation of the first rotating rod 27 drives the rotation of the second rotating rod 28. The rotation of the second rotating rod 28 drives the first moving rod 29 to move upward. The upward movement of the first moving rod 29 drives the first arc-shaped support plate 210 to move upward. The upward movement of the first arc-shaped support plate 210 is used to support the middle of the tunnel top. Meanwhile, the rotation of the first rotating rod 27 drives the rotation of the third rotating rod 31. The rotation of the third rotating rod 31 drives the first slider 32 to move downward. The downward movement of the first slider 32 drives the first sliding column 33 to move downward. The downward movement of the first sliding column 33 drives the inner rod of the V-shaped rod 34 to rotate. The rotation of the inner rod of the V-shaped rod 34 drives the V-shaped rod 34 to rotate around the third rotating shaft 35. The rotation of the V-shaped rod 34 drives the outer rod of the V-shaped rod 34 to rotate. The rotation of the outer rod of the V-shaped rod 34 drives the second sliding column 36 to move outward. The outward movement of the second sliding column 36 drives the second moving rod 37 to move outward. The outward movement of the second moving rod 37 drives the second slider 38 to move outward. The outward movement of the second slider 38 drives the third moving rod 39 to move outward. The outward movement of the third moving rod 39 drives the second arc-shaped support plate 3 to move outward. The outward movement of the second arc-shaped support plate 3 is used to support the side of the tunnel top, increasing the support area of the tunnel top and improving the support effect on the tunnel top. Meanwhile, the downward movement of the first slider 32 drives the rack to move downward. The downward movement of the rack drives the gear 41 to rotate. The rotation of the gear 41 drives the rotation of the fourth rotating shaft 42. The rotation of the fourth rotating shaft 42 drives the rotation of the fourth rotating rod 43. The rotation of the fourth rotating rod 43 drives the rotation of the fifth rotating rod 44. The rotation of the fifth rotating rod 44 drives the moving plate 45 to move outward. The outward movement of the moving plate 45 drives the support side plate 4 to move outward. The outward movement of the support side plate 4 is used to support both sides of the tunnel bottom, thus providing more comprehensive support for the tunnel and ensuring sufficient support force for the construction tunnel. Meanwhile, the downward movement of the first slider 32 drives the fourth moving rod 51 to move downward. The downward movement of the fourth moving rod 51 drives the stabilizing plate 5 and the telescopic plate 53 to move downward. The downward movement of the stabilizing plate 5 and the telescopic plate 53 then contacts the ground for fixing the entire device, increasing the stability of the device during support. Meanwhile, the outward movement of the moving plate 45 drives the telescopic rod 52 to move outward. The outward movement of the telescopic rod 52 drives the telescopic plate 53 to extend. The extension of the telescopic plate 53 then increases the contact area with the ground, thereby enhancing the overall support effect of the device, preventing the construction tunnel from collapsing easily due to insufficient support force, increasing the construction efficiency of the tunnel, and improving the practicality of the device.

[0022] Through the setting of the first support mechanism, the first arc-shaped support plate moves upward to support the middle of the tunnel top; through the setting of the second support mechanism, while the first arc-shaped support plate moves upward to support the middle of the tunnel top, the second arc-shaped support plate moves outward to support the side of the tunnel top, increasing the support area of the tunnel top and improving the support effect on the tunnel top; through the setting of the third support mechanism, while the first arc-shaped support plate moves upward to support the middle of the tunnel top and the second arc-shaped support plate moves outward to support the side of the tunnel top, the support side plate moves outward to support both sides of the tunnel bottom, thus providing more comprehensive support for the tunnel and ensuring sufficient support force for the construction tunnel; through the setting of the fixing structure, while the first arc-shaped support plate moves upward to support the middle of the tunnel top, the second arc-shaped support plate moves outward to support the side of the tunnel top, and the support side plate moves outward to support both sides of the tunnel bottom, the stabilizing plate and the telescopic plate move downward and then contact the ground to fix the entire device, increasing the stability of the device during support, and the telescopic plate extends to increase the contact area with the ground, thereby enhancing the overall support effect of the device, preventing the construction tunnel from collapsing easily due to insufficient support force, increasing the construction efficiency of the tunnel, and improving the practicality of the device; the structure of the present invention is simple and reliable, has a good support effect on tunnel construction, is convenient to control, and is suitable for popularization.

[0023] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, 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 support device for tunnel construction, characterized in that, It includes a bottom plate (1) and a mounting plate (2); The mounting plate (2) is vertically connected to the bottom plate (1), and a first support mechanism for supporting the middle of the tunnel top is provided on the front side of the mounting plate (2); Second support mechanisms for supporting the sides of the tunnel top are provided on both sides of the first support mechanism, and the first support mechanism drives the second support mechanisms to work; A third support mechanism for supporting both sides of the tunnel bottom is provided below the first support mechanism, and the second support mechanisms drive the third support mechanism to work; A fixing mechanism for stably supporting the device is provided under the bottom plate (1), and the second support mechanisms drive the fixing mechanism to work.

2. The support device for tunnel construction according to claim 1, wherein: The first support mechanism includes a driving member (21), a first rotating shaft (22), a worm (23), a fixing plate (24), a worm gear (25), a second rotating shaft (26), a first rotating rod (27), a second rotating rod (28), a first moving rod (29), and a first arc-shaped support plate (210). Two fixing plates (24) are respectively provided on the rear side of the mounting plate (2). The first rotating shaft (22) is rotatably provided between the two fixing plates (24). One end of the first rotating shaft (22) rotatably penetrates through one of the fixing plates (24) and is connected to the driving member (21); A worm (23) is sleeved on the first rotating shaft (22). One side of the worm (23) is meshed and connected with a worm gear (25). The first end of a second rotating shaft (26) is connected to the worm gear (25). The second end of the second rotating shaft (26) rotatably penetrates through the mounting plate (2) and is vertically connected to the middle of the first rotating rod (27). The first end of the first rotating rod (27) is rotatably connected to the first end of the second rotating rod (28). The second end of the second rotating rod (28) is rotatably connected to the first end of the first moving rod (29). The first moving rod (29) is slidably connected to the mounting plate (2). The second end of the first moving rod (29) is connected to the first arc-shaped support plate (210); The first rotating rod (27) drives the second support mechanisms to work through rotation.

3. The support device for tunnel construction according to claim 2, characterized in that: The second support mechanism includes a second arc-shaped support plate (3), a third rotating rod (31), a first slider (32), a first sliding column (33), a V-shaped rod (34), a third rotating shaft (35), a second sliding column (36), a second moving rod (37), a second slider (38), and a third moving rod (39). The second end of the first rotating rod (27) is rotatably connected to the first end of the third rotating rod (31). The second end of the third rotating rod (31) is rotatably connected to the top of the first slider (32). The first slider (32) is slidably connected to the mounting plate (2). The front side of the first slider (32) is connected to the first sliding column (33); On both sides of the mounting plate (2) on both sides of the first slider (32), the first ends of the third rotating shafts (35) are rotatably connected. The second ends of the third rotating shafts (35) are connected with V-shaped rods (34). Through first sliding grooves are provided on the inner rods of the two V-shaped rods (34). The first sliding columns (33) are slidably arranged in the two first sliding grooves. Through second sliding grooves are provided on the outer rods of the two V-shaped rods (34); On both sides of the mounting plate (2) on both sides of the first moving rod (29), second sliders (38) are inclined and slidably arranged. The bottom of the second slider (38) is hinged to the first end of the second moving rod (37). The second end of the second moving rod (37) is vertically connected with the second sliding column (36). The second sliding column (36) is slidably arranged in the second sliding groove. The top of the second slider (38) is connected with the first end of the third moving rod (39). The second end of the third moving rod (39) is connected with the second arc-shaped support plate (3); The first slider (32) drives the third support mechanism and the driving fixing mechanism to work through movement respectively.

4. The support device for tunnel construction according to claim 3, characterized in that: The third support mechanism includes a support side plate (4), a gear (41), a fourth rotating shaft (42), a fourth rotating rod (43), a fifth rotating rod (44) and a moving plate (45). Rack teeth are provided on both sides of the first slider (32). The first ends of the fourth rotating shafts (42) are rotatably connected to the mounting plates (2) on both sides of the first slider (32). The second ends of the fourth rotating shafts (42) are sleeved with gears (41). The gears (41) are meshed with the rack teeth. The second end of the fourth rotating shaft (42) penetrates through the gear (41) and is vertically connected with the first end of the fourth rotating rod (43). The second end of the fourth rotating rod (43) is rotatably connected to the first end of the fifth rotating rod (44). The second end of the fifth rotating rod (44) is hinged to the moving plate (45). The moving plate (45) is slidably connected to the mounting plate (2). The outer side of the moving plate (45) is connected with the support side plate (4).

5. The support device for tunnel construction according to claim 3, characterized in that: The fixing mechanism includes a stabilizing plate (5), a fourth moving rod (51), a telescopic rod (52) and a telescopic plate (53). A through groove is provided under the bottom plate (1). The first end of the fourth moving rod (51) is connected to the bottom of the first slider (32). The second end of the fourth moving rod (51) slidably penetrates through the bottom plate (1) and is vertically connected with the stabilizing plate (5); A through third sliding groove is provided on the bottom plate (1) below the moving plate (45). The first end of the telescopic rod (52) is vertically connected under the moving plate (45). The second end of the telescopic rod (52) slidably penetrates through the third sliding groove and is vertically connected to the upper side of the telescopic end of the telescopic plate (53). The fixed ends of the two telescopic plates (53) are respectively connected to both sides of the same stabilizing plate (5).

6. The support device for tunnel construction according to claim 2, characterized in that: A first T-shaped groove is provided on the mounting plate (2) behind the first moving rod (29). A first T-shaped protrusion (211) matching the first T-shaped groove is provided on the first moving rod (29). The first T-shaped protrusion (211) is slidably arranged in the first T-shaped groove.

7. The support device for tunnel construction according to claim 3, wherein: A second T-shaped groove is provided on the mounting plate (2) at the rear side of the first slider (32), a second T-shaped projection (310) matching the second T-shaped groove is provided on the first slider (32), and the second T-shaped projection (310) is slidably connected and arranged in the second T-shaped groove.

8. The support device for tunnel construction according to claim 3, characterized in that: A third T-shaped groove is provided on the mounting plate (2) at the rear side of the second slider (38), a third T-shaped projection (311) matching the third T-shaped groove is provided on the second slider (38), and the third T-shaped projection (311) is slidably connected and arranged in the third T-shaped groove.

9. The support device for tunnel construction according to claim 4, wherein: A fourth T-shaped groove is provided on the mounting plate (2) at the rear side of the moving plate (45), a fourth T-shaped projection (46) matching the fourth T-shaped groove is provided on the moving plate (45), and the fourth T-shaped projection (46) is slidably connected and arranged in the fourth T-shaped groove.

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