Vault supporting device for reinforcing hydraulic engineering tunnel

Abstract

The invention belongs to the technical field of tunnel vault supporting, and particularly relates to a vault supporting device for reinforcing a hydraulic engineering tunnel. Comprising two supporting mechanisms symmetrically arranged along the radian of a tunnel. The supporting mechanism comprises a jacking assembly, an adjusting assembly and a bearing connecting assembly. The jacking assembly comprises a supporting pipe and an arc-shaped supporting plate. The two ends of the arc-shaped supporting plate are slidably connected with a rectangular connecting plate and an arc-shaped connecting plate. The rotating angles of the arc-shaped connecting plate and the arc-shaped supporting plate are controlled through the supporting pipe, so that adjustment is carried out according to the radian of the tunnel vault, the arc-shaped connecting plate and the arc-shaped supporting plate are attached, and the supporting effect is improved; the rectangular connecting plate is controlled to extend out through the bearing connecting assembly, so that top sealing is facilitated; and the rectangular connecting blocks on the two sides are connected, so that the middle part is prevented from being broken due to overlarge weight, and the connecting effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel vault support, in particular to a vault support device for reinforcing a water conservancy engineering tunnel. Background Art

[0002] A hydraulic engineering tunnel refers to a tunnel project built for water conservancy purposes such as water conveyance, drainage, and water supply; hydraulic engineering tunnels are usually used to cross mountains, cross rivers, connect reservoirs and irrigation areas, and play functions such as water conveyance, drainage, and water diversion; engineering tunnel reinforcement refers to a series of measures taken to improve the structural stability, safety, and service life of the tunnel; during operation, the tunnel may be affected by geological conditions, hydrological conditions, traffic loads and other factors, resulting in cracks, deformation, settlement and other problems, which require reinforcement; tunnel vault support devices are usually supported by steel structures, which need to be welded and combined with concrete to ensure effective support for the tunnel vault; however, welding steel takes a lot of time, which may increase the risk of tunnel collapse during welding; in addition, concrete needs time to solidify, and the supporting capacity may be insufficient before the concrete is completely dry; therefore, the above problems need to be improved. Summary of the invention

[0003] The present invention overcomes the shortcomings of the prior art and proposes a vault support device for reinforcing a water conservancy engineering tunnel; the present invention is achieved through the following technical solutions: A vault support device for reinforcing a water conservancy engineering tunnel comprises two sets of support mechanisms symmetrically arranged along the curvature of the tunnel; the support mechanisms comprise a jacking assembly, an adjustment assembly and a supporting connection assembly; The jacking assembly comprises a support tube and an arc-shaped support plate; a jacking drive mechanism is connected to the bottom of the support tube, and the upper end of the support tube is hinged to the bottom surface of the arc-shaped support plate; the arc-shaped support plates of the two groups of jacking assemblies are provided with storage grooves at their far ends, and the arc-shaped support plates of the two groups of jacking assemblies are provided with slide grooves at their proximal ends, an arc-shaped connecting plate is slidably connected in the storage groove, a rectangular connecting plate is slidably connected in the slide groove, and rectangular connecting blocks are fixedly connected to the proximal ends of the two rectangular connecting plates; the arc-shaped support plate is moved upward by the jacking drive mechanism to abut against the corresponding tunnel wall; The adjustment assembly includes a moving seat and a support rod, the moving seat is connected to a driving assembly, and the moving seat is horizontally moved in a direction perpendicular to the axial direction of the tunnel through the driving assembly; a first lifting driving mechanism is provided on the moving seat, the first lifting driving mechanism is connected to the support rod, and the upper end of the support rod is movably hinged to the arc-shaped connecting plate; The supporting connection assembly includes a third screw; the third screw is rotatably connected inside the supporting tube, and the third screw is connected to a second lifting drive mechanism; a moving block is provided inside the supporting tube, the moving block is threadedly connected to the third screw, a first connecting rod is provided on one side of the moving block, one end of the first connecting rod is movably hinged to the moving block, and the other end of the first connecting rod is movably hinged to the bottom surface of the rectangular connecting plate; installation grooves are provided at the proximal ends of the two rectangular connecting blocks, and connecting hooks and a third spring are provided in the two installing grooves, the connecting hooks are rotatably connected in the corresponding installing grooves, a third spring is fixedly connected between the front end of the connecting hook on one side and the inner wall of the corresponding installing groove, and a third spring is fixedly connected between the rear end of the connecting hook on the other side and the inner wall of the corresponding installing groove; the two rectangular connecting blocks are indirectly abutted against each other through the second lifting drive mechanism, and one end of the connecting hook is pressed inward. At this time, the third spring is in a compressed state, so that the other ends of the two connecting hooks are clamped with each other.

[0004] Furthermore, the front and rear ends of the moving block are both provided with second connecting rods, one ends of the two second connecting rods are both movably hinged to the moving block, and the other ends of the two second connecting rods are both movably hinged to an arc-shaped connecting block; a rectangular notch is provided at one end of the arc-shaped connecting block, and an arc-shaped notch is provided at the other end of the arc-shaped connecting block; a first guide rod is slidably connected in the rectangular notch, one end of the first guide rod is placed in the rectangular notch, and a first spring is provided in the rectangular notch, the first spring is sleeved on the outside of the first guide rod, and one end of the first spring is fixedly connected to the first guide rod, and the other end is fixedly connected to the inner wall of the rectangular notch; the other end of the first guide rod is fixedly connected to the first positioning block, and the bottom surface of the first positioning block is longitudinally fixedly connected to the first positioning rod; A second guide rod and a second spring are arranged in the arc-shaped slot, the second spring is sleeved on the outside of the second guide rod, one end of the second spring is fixedly connected to the second guide rod, and the other end is fixedly connected to the inner wall of the arc-shaped slot; a second positioning block is fixedly connected to the end of the second guide rod, and a second positioning rod is longitudinally fixedly connected to the bottom surface of the second positioning block; The proximal ends of the two first positioning rods are respectively slidably connected to the through openings opened at the lower end of the rectangular connecting block, and the proximal ends of the two second positioning rods are slidably connected to the through openings opened at the lower end of the arc-shaped connecting plate; two third positioning rods and two fourth positioning rods are longitudinally arranged between the two first positioning rods and the two second positioning rods; the distal ends of the two third positioning rods are respectively fixed to the bottom surfaces of the arc-shaped connecting blocks on both sides, and the proximal ends of the two third positioning rods are slidably connected to a through opening opened at the lower end of the arc-shaped supporting plate; the distal ends of the two fourth positioning rods are respectively fixed to the bottom surfaces of the arc-shaped connecting blocks on both sides, and the proximal ends of the two fourth positioning rods are slidably connected to another through opening opened at the lower end of the arc-shaped supporting plate; Protective cloth is arranged on both sides of the arc-shaped support plate, and the protective cloth is arranged on the upper ends of the first positioning rod, the second positioning rod, the third positioning rod and the fourth positioning rod; one side of the protective cloth is connected to the side of the arc-shaped connecting block, the first positioning block and the second positioning block, and the other side of the protective cloth is connected to the side of the arc-shaped support plate, the arc-shaped connecting plate and the rectangular connecting block.

[0005] Furthermore, the jacking drive mechanism includes a fixed seat, a jacking box, a jacking hydraulic cylinder and a jacking plate; the jacking box is installed on the top surface of the fixed seat, and jacking hydraulic cylinders are installed at both ends inside the jacking box. The top surfaces of the output shafts of the two jacking hydraulic cylinders are longitudinally fixed with jacking plates, the jacking plate is placed in the jacking box, and a support pipe is vertically installed in the middle of the top surface of the jacking plate; the lower end of the support pipe is placed in the jacking box, and the upper end of the support pipe is located outside the jacking box.

[0006] Furthermore, the driving assembly includes a supporting shell, a first servo motor and a first screw; the first servo motor is installed inside the supporting shell, the output shaft of the first servo motor is connected to the first screw through a coupling, and the end of the first screw away from the supporting shell is rotatably connected to the fixed seat; the movable seat is arranged between the fixed seat and the supporting shell on the same side, and the movable seat is threadedly connected to the first screw.

[0007] Furthermore, guide rods are laterally sleeved at both ends of the movable seat, and both ends of the guide rods are fixedly connected to the support shell and the fixed seat respectively.

[0008] Furthermore, the supporting mechanism also includes a base; the supporting shell and the fixing seat are both arranged on the base.

[0009] Furthermore, the side wall of the support shell abuts against the inner wall of the tunnel.

[0010] Furthermore, the second lifting drive mechanism includes a second worm gear, a second worm and a second servo motor; the second worm gear is horizontally fixedly connected to the lower end of the third screw, a through opening is opened at the lower end of the support tube, and a second worm gear is longitudinally arranged on the other side of the second worm gear, and the second worm gear is meshed and connected with the second worm gear at the through opening of the support tube; the front end of the second worm gear is connected to the output shaft of the second servo motor through a coupling, and the second servo motor is installed on the top surface of the lifting plate.

[0011] Furthermore, the first lifting drive mechanism includes a transmission box, a guide tube and a second screw; the transmission box is installed on the top surface of the moving seat, and a guide tube is vertically provided inside the transmission box, the guide tube is installed in the middle of the top surface of the moving seat, and a support rod is provided at the upper end of the guide tube, an internal thread groove is provided on the bottom surface of the support rod, and a second screw is vertically rotatably connected inside the guide tube, and the second screw is threadedly connected to the support rod; a first worm gear is horizontally fixed to the lower end of the second screw, the first worm gear is placed at the lower end of the guide tube, and a through opening is provided on one side of the guide tube; a first worm is longitudinally provided on one side of the first worm gear, and the first worm is meshed and connected with the first worm gear at the through opening of the guide tube; the first worm is rotatably connected to the transmission box.

[0012] Furthermore, a hand wheel is fixedly connected to the front end of the first worm, and the hand wheel is placed outside the transmission box.

[0013] The beneficial effects of the present invention compared with the prior art are as follows: The present invention facilitates controlling the rotation angles of the arc-shaped connecting plate and the arc-shaped supporting plate through the cooperation of the supporting tube and the supporting rod, so as to adjust them according to the curvature of the tunnel vault to make them fit, thereby improving the supporting effect; through the cooperation of the moving seat and the supporting rod, it is convenient to control the extension of the arc-shaped connecting plate, so as to support the side wall and increase the supporting area; through the cooperation of the moving block and the first connecting rod, it is convenient to control the extension of the rectangular connecting plate to facilitate capping; through the cooperation of the moving block and the second connecting rod, it is convenient to control the movement of the arc-shaped connecting block, so as to facilitate the deployment of the protective cloth and thereby increase the protective area; through the cooperation of the connecting hook and the third spring, it is convenient to connect the rectangular connecting blocks on both sides to avoid the middle part from bearing too much weight and breaking, thereby improving the connection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of a rectangular connecting block of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of one set of supporting mechanisms of the present invention; Figure 4 It is a schematic diagram of the internal three-dimensional structure of the jacking box and the transmission box of the present invention; Figure 5 It is a cross-sectional three-dimensional structural schematic diagram of the support mechanism of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the arc-shaped support plate and the arc-shaped connecting plate of the present invention; Figure 7 It is a bottom-up three-dimensional structural schematic diagram of the arc-shaped support plate and the arc-shaped connecting plate of the present invention; Figure 8 It is a schematic diagram of the cross-sectional three-dimensional structure of the arc-shaped support plate and the arc-shaped connecting plate of the present invention; Fig. 9 For the present invention Figure 2 A schematic diagram of the enlarged structure of the middle A part; Fig.10 For the present invention Figure 8 A schematic diagram of the structure of the middle B part; Fig.11 For the present invention Figure 8 A magnified schematic diagram of the structure of the middle C part; The serial numbers in the figure are: 1, base; 2, support shell; 3, first servo motor; 4, first screw; 5, fixed seat; 6, movable seat; 7, guide rod; 8, lifting box; 9, lifting hydraulic cylinder; 10, lifting plate; 11, support pipe; 12, arc support plate; 13, arc connecting plate; 14, support rod; 15, guide pipe; 16, second screw; 17, first worm gear; 18, first worm; 19, hand wheel; 20, transmission box; 21, third screw; 22, second worm gear; 23, second worm ; 24. Second servo motor; 25. Moving block; 26. First connecting rod; 27. Rectangular connecting plate; 28. Rectangular connecting block; 29. ​​Second connecting rod; 30. Arc-shaped connecting block; 31. First guide rod; 32. First positioning block; 33. First spring; 34. First positioning rod; 35. Second guide rod; 36. Second spring; 37. Second positioning block; 38. Second positioning rod; 39. Third positioning rod; 40. Fourth positioning rod; 41. Protective cloth; 42. Connecting hook; 43. Third spring. DETAILED DESCRIPTION

[0015] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is further described in detail in conjunction with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. The technical solutions of the present invention are described in detail below in conjunction with the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0016] See also Figures 1 to 11 The present embodiment proposes a vault support device for reinforcing a tunnel of a water conservancy project, comprising two sets of support mechanisms symmetrically arranged along the curvature of the tunnel; the support mechanism comprises a base 1, the bases 1 of the two sets of support mechanisms are respectively installed on both sides of the inner bottom surface of the tunnel, a driving assembly is installed on the base 1, and the driving assembly comprises a support shell 2, a first servo motor 3 and a first screw 4; the support shell 2 is installed at the far ends of the top surfaces of the two bases 1, and the far surfaces of the two support shells 2 abut against the inner wall of the tunnel to play the role of supporting the wall; the support shell 2 is installed inside A first servo motor 3 is installed, and the output shaft of the first servo motor 3 is connected to the first screw 4 through a coupling. A fixed seat 5 is installed at the proximal end of the top surface of the two bases 1, and the distal ends of the two fixed seats 5 are rotatably connected to the first screw 4 on the same side. A movable seat 6 is provided between the fixed seat 5 and the support shell 2 on the same side. The movable seat 6 is threadedly connected to the first screw 4, and guide rods 7 are transversely sleeved at both ends of the movable seat 6. The two ends of the guide rod 7 are respectively fixed to the support shell 2 and the fixed seat 5 on the same side, and the movement and guidance of the movable seat 6 are controlled by the guide rod 7.

[0017] A lifting assembly, an adjusting assembly and a supporting connection assembly are arranged above the base 1.

[0018] The jacking assembly includes a support tube 11, an arc-shaped support plate 12 and a jacking drive mechanism. The bottom of the support tube 11 is connected to the jacking drive mechanism, and the jacking drive mechanism includes a fixed seat 5, a jacking box 8, a jacking hydraulic cylinder 9 and a jacking plate 10; the jacking box 8 is installed on the top surface of the fixed seat 5, and the jacking hydraulic cylinders 9 are installed at both ends inside the jacking box 8, and the top surfaces of the output shafts of the two jacking hydraulic cylinders 9 are longitudinally fixed with the jacking plates 10, the jacking plates 10 are placed in the jacking box 8, and the support tube 11 is vertically installed in the middle of the top surface of the jacking plate 10, and the arc-shaped support plate 12 is connected through the support tube 11; the lower end of the support tube 11 is placed in the jacking box 8, and the upper end of the support tube 11 is located outside the jacking box 8, and the upper end of the support tube 11 is provided with an arc-shaped support plate 12, and the arc-shaped connecting plate 13 and the rectangular connecting plate 27 are connected through the arc-shaped support plate 12; the middle part of the bottom surface of the arc-shaped support plate 12 is movably hinged with the support tube 11. Figure 3 , Figure 4 , Figure 5 As shown, the arc-shaped support plates 12 above the two bases 1 have storage grooves at their far ends, and the two arc-shaped support plates 12 have sliding grooves at their proximal ends, the storage grooves are slidably connected with an arc-shaped connecting plate 13, the sliding grooves are slidably connected with a rectangular connecting plate 27, and the proximal ends of the two rectangular connecting plates 27 are longitudinally fixed with a rectangular connecting block 28. The arc-shaped support plates 12 can be more fully abutted against the corresponding tunnel wall through the jacking assembly.

[0019] The adjustment assembly includes a moving seat 6 and a support rod 14, and the moving seat 6 is provided with a first lifting drive mechanism, which includes a transmission box 20, a guide tube 15 and a second screw 16; the transmission box 20 is installed on the top surface of the moving seat 6, and a guide tube 15 is vertically provided inside the transmission box 20, and the guide tube 15 is installed in the middle of the top surface of the moving seat 6, and a support rod 14 is provided at the upper end of the guide tube 15, and an internal thread groove is provided on the bottom surface of the support rod 14, and the upper end of the support rod 14 is movably hinged with the arc-shaped connecting plate 13; the guide tube 15 is vertically rotatably connected to the second screw 16, and the support rod 1 is controlled by the second screw 16 4 lifting; the second screw 16 is threadedly connected to the support rod 14, and the lower end of the second screw 16 is horizontally fixed with a first worm wheel 17, and the second screw 16 is controlled to rotate by the first worm wheel 17; the first worm wheel 17 is placed at the lower end of the guide tube 15, and a through opening is opened on one side of the guide tube 15; a first worm 18 is longitudinally arranged on one side of the first worm wheel 17, and the first worm 18 is meshed and connected with the first worm wheel 17 at the through opening of the guide tube 15; the first worm 18 is rotatably connected in the transmission box 20, and a hand wheel 19 is fixed at the front end of the first worm 18, and the first worm 18 is controlled to rotate by the hand wheel 19; the hand wheel 19 is placed outside the transmission box 20. By adjusting the forward and backward and up and down movement of the assembly, the arc-shaped connecting plate 13 can be more fully abutted against the corresponding tunnel wall.

[0020] The supporting connection assembly includes a third screw 21 vertically arranged at the upper end of the base 1, and the third screw 21 is connected to a second lifting drive mechanism; the third screw 21 is used to control the lifting of the moving block 25; the second lifting drive mechanism includes a second worm gear 22, a second worm 23 and a second servo motor 24; the third screw 21 is rotatably connected inside the support tube 11, and the lower end of the third screw 21 is horizontally fixed with the second worm gear 22, and the rotation of the third screw 21 is controlled by the second worm gear 22; a through opening is opened on the other side of the lower end of the support tube 11, and a second worm 23 is longitudinally arranged on the other side of the second worm gear 22, and the second worm 23 is meshed and connected with the second worm gear 22 at the through opening of the support tube 11; the front end of the second worm 23 is connected to the output shaft of the second servo motor 24 through a coupling, and the rotation of the second worm 23 is controlled by the second servo motor 24; the second servo motor 24 is installed on the top surface of the jacking plate 10. The front, rear and side parts of the upper end of the support tube 11 are vertically provided with sliding openings, and a moving block 25 is provided at the upper end inside the support tube 11, the moving block 25 is threadedly connected to the third screw rod 21, and a first connecting rod 26 is provided on one side of the moving block 25, one end of the first connecting rod 26 is movably hinged to the moving block 25, and the other end of the first connecting rod 26 is movably hinged to the bottom surface of the rectangular connecting plate 27; installation grooves are provided at the proximal ends of the two rectangular connecting blocks 28, and connecting hooks 42 and third springs 43 are provided in the two installing grooves, the rectangular connecting blocks 28 on both sides are connected and fixed by the connecting hooks 42, and the third springs 43 facilitate the falling off of the connecting hooks 42 on both sides; the connecting hooks 42 are rotatably connected in the corresponding installing grooves, a third spring 43 is fixedly connected between the front end of the connecting hook 42 on one side and the inner wall of the corresponding installing groove, and a third spring 43 is fixedly connected between the rear end of the connecting hook 42 on the other side and the inner wall of the corresponding installing groove.

[0021] The moving block 25 is provided with a second connecting rod 29 at the front and rear ends, one end of the two second connecting rods 29 is movably hinged with the moving block 25, and the other ends of the two second connecting rods 29 are movably hinged with an arc-shaped connecting block 30; a rectangular notch is provided at one end of the arc-shaped connecting block 30, and an arc notch is provided at the other end of the arc-shaped connecting block 30; a first guide rod 31 is slidably connected in the rectangular notch, one end of the first guide rod 31 is placed in the rectangular notch, and a first spring 33 is provided in the rectangular notch, the first spring 33 is sleeved on the outside of the first guide rod 31, and one end of the first spring 33 is fixedly connected to the first guide rod 31, and the other end is fixedly connected to the inner wall of the rectangular notch; the retraction of the first guide rod 31 is controlled by the first spring 33; a first positioning block 32 is fixedly connected to the other end of the first guide rod 31, and a first positioning rod 34 is longitudinally fixedly connected to the bottom surface of the first positioning block 32, and the movement and guidance of the first positioning block 32 is controlled by the first positioning rod 34.

[0022] A second guide rod 35 and a second spring 36 are provided in the arc-shaped slot. The second spring 36 is sleeved on the outside of the second guide rod 35, and one end of the second spring 36 is fixedly connected to the second guide rod 35, and the other end is fixedly connected to the inner wall of the arc-shaped slot. The retraction of the second guide rod 35 is controlled by the second spring 36. A second positioning block 37 is fixedly connected to the end of the second guide rod 35, and a second positioning rod 38 is longitudinally fixedly connected to the bottom surface of the second positioning block 37. The movement and guidance of the second positioning block 37 are controlled by the second positioning rod 38.

[0023] The proximal ends of the two first positioning rods 34 on the same side are respectively slidably connected in the through openings opened at the lower end of the rectangular connecting block 28, and the proximal ends of the two second positioning rods 38 on the same side are slidably connected in the through openings opened at the lower end of the arc-shaped connecting plate 13; two third positioning rods 39 and two fourth positioning rods 40 are longitudinally arranged between the two first positioning rods 34 and the two second positioning rods 38 on the same side; the distal ends of the two third positioning rods 39 are respectively fixed to the bottom surfaces of the arc-shaped connecting blocks 30 on both sides, and the proximal ends of the two third positioning rods 39 are slidably connected in a through opening opened at the lower end of the arc-shaped support plate 12; similarly, the distal ends of the two fourth positioning rods 40 are respectively fixed to the bottom surfaces of the arc-shaped connecting blocks 30 on both sides, and the proximal ends of the two fourth positioning rods 40 are slidably connected in another through opening opened at the lower end of the arc-shaped support plate 12.

[0024] Protective cloth 41 is provided on both sides of the arc-shaped support plate 12, and the protective cloth 41 is provided on the upper ends of the first positioning rod 34, the second positioning rod 38, the third positioning rod 39 and the fourth positioning rod 40, and the protective area is increased by the protective cloth 41. One side of the protective cloth 41 is connected to the side of the arc-shaped connecting block 30, the first positioning block 32 and the second positioning block 37, and the other side of the protective cloth 41 is connected to the side of the arc-shaped support plate 12, the arc-shaped connecting plate 13 and the rectangular connecting block 28.

[0025] The rectangular connecting blocks 28 on both sides can be clamped and fixed by the supporting connecting assembly, and the protective area can also be increased by the unfolded protective cloth 41.

[0026] In this embodiment, a method for using a vault support device for reinforcing a water conservancy engineering tunnel includes the following steps: Step 1: Install two bases 1 on the bottom surfaces on both sides of the tunnel, then install the support shell 2 at the far ends of the two bases 1, so that the outer side of the support shell 2 abuts against the wall, then install all components on the base 1 in turn, and then connect all electrical equipment to the wires and power on. Start the lifting hydraulic cylinder 9, push the lifting plate 10 upward through the lifting hydraulic cylinder 9, thereby pushing the support pipe 11 upward, and control the arc support plate 12 to move upward through the upper end of the support pipe 11 and the arc support plate 12. At this time, the position of the support rod 14 remains unchanged. When the arc support plate 12 moves upward, the arc connecting plate 13 will tilt as it moves upward. When the top surface of the arc support plate 12 abuts against the tunnel wall, stop the lifting hydraulic cylinder 9.

[0027] Step 2, start the first servo motor 3, and control the first screw 4 to rotate through the first servo motor 3. Since the first screw 4 is threadedly connected to the moving seat 6, and the guide rod 7 is sleeved with the moving seat 6, the first screw 4 rotates to control the moving seat 6 to move, thereby controlling the movement of the transmission box 20 and the support rod 14 at the upper end. When the support rod 14 moves outward, the outer side of the arc-shaped connecting plate 13 is controlled to move upward; when the moving seat 6 can no longer move, and the top surface of the arc-shaped connecting plate 13 is not fully in contact with the tunnel wall, turn the hand wheel 19 to control the first screw 4 to move upward. A worm 18 rotates, the first worm 18 controls the first worm wheel 17 to rotate, and the first worm wheel 17 controls the second screw 16 to rotate; since the second screw 16 is threadedly connected to the support rod 14, when the second screw 16 rotates, the support rod 14 is controlled to rise and fall, and when the support rod 14 rises, the arc-shaped connecting plate 13 is pushed upward, and then the top surface of the arc-shaped connecting plate 13 is abutted against the tunnel wall; in this process, since the arc-shaped connecting plate 13 moves outward, the second positioning block 37 is moved outward through the second guide rod 35, and the second spring 36 is in a compressed state.

[0028] Step three, when the top surfaces of the arc-shaped support plate 12 and the arc-shaped connecting plate 13 are both in contact with the tunnel wall, the second servo motor 24 is started, and the second worm 23 is controlled to rotate by the second servo motor 24, thereby controlling the second worm wheel 22 to rotate, and then controlling the third screw 21 to rotate. Since the third screw 21 is threadedly connected to the moving block 25, when the third screw 21 rotates, the moving block 25 is controlled to move. Since the two ends of the first connecting rod 26 are movably hinged with the moving block 25 and the rectangular connecting plate 27 respectively, when the moving block 25 rises, the rectangular connecting plate 27 will be pushed outward by the first connecting rod 26, thereby pushing the rectangular connecting block 28 outward, and the rectangular connecting plates 27 on both sides are close to each other, thereby controlling the two rectangular connecting blocks 28 to be close to each other. When the rectangular connecting blocks 28 on both sides are in contact with each other, one end of the connecting hook 42 is pressed inward. At this time, the third spring 43 is in a compressed state. Since the connecting hook 42 is rotatably connected to the rectangular connecting block 28, the other ends of the two connecting hooks 42 are clamped with each other. During this process, the first positioning block 32 is moved outward by the first positioning rod 34 , and at this time, the first guide rod 31 moves outward, and the first spring 33 is in a compressed state.

[0029] Step four, since the second connecting rod 29 is movably hinged with the movable block 25 and the arc-shaped connecting block 30 respectively, when the movable block 25 moves upward, the arc-shaped connecting blocks 30 at both ends of the same side are pushed outward. At this time, the first positioning rod 34, the second positioning rod 38, the third positioning rod 39 and the fourth positioning rod 40 move outward; when the arc-shaped connecting block 30 moves outward, the protective cloth 41 will unfold as the arc-shaped connecting block 30 moves outward; at this time, all components are installed.

[0030] The above content is a further detailed description of the present invention in combination with a specific preferred embodiment. It cannot be determined that the specific embodiments of the present invention are limited to this. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the present invention, which should be regarded as belonging to the present invention and the scope of patent protection determined by the submitted claims.

Claims

1. A vault support device for reinforcing a water conservancy engineering tunnel, characterized in that: It comprises two groups of supporting mechanisms symmetrically arranged along the curvature of the tunnel; the supporting mechanisms comprise a jacking assembly, an adjusting assembly and a supporting connection assembly; The jacking assembly comprises a support tube (11) and an arc-shaped support plate (12); a jacking drive mechanism is connected to the bottom of the support tube (11), and the upper end of the support tube (11) is hinged to the bottom surface of the arc-shaped support plate (12); storage grooves are provided at the far ends of the arc-shaped support plates (12) of the two groups of jacking assemblies, and sliding grooves are provided at the proximal ends of the arc-shaped support plates (12) of the two groups of jacking assemblies, an arc-shaped connecting plate (13) is slidably connected in the storage groove, a rectangular connecting plate (27) is slidably connected in the sliding groove, and rectangular connecting blocks (28) are fixedly connected to the proximal ends of the two rectangular connecting plates (27); the arc-shaped support plates (12) are moved upward by the jacking drive mechanism until they abut against the corresponding tunnel wall surface; The adjustment assembly comprises a moving seat (6) and a support rod (14); the moving seat (6) is connected to a driving assembly, and the driving assembly enables the moving seat (6) to move horizontally in a direction perpendicular to the axial direction of the tunnel; a first lifting driving mechanism is provided on the moving seat (6), and the first lifting driving mechanism is connected to the support rod (14); the upper end of the support rod (14) is movably hinged to the arc-shaped connecting plate (13); The supporting connection assembly comprises a third screw rod (21); the third screw rod (21) is rotatably connected inside the supporting tube (11), and the third screw rod (21) is connected to a second lifting drive mechanism; a moving block (25) is provided inside the supporting tube (11), the moving block (25) is threadedly connected to the third screw rod (21), a first connecting rod (26) is provided on one side of the moving block (25), one end of the first connecting rod (26) is movably hinged to the moving block (25), and the other end of the first connecting rod (26) is movably hinged to the bottom surface of a rectangular connecting plate (27); two rectangular connecting blocks (28) are provided with mounting grooves at their proximal ends, and the two connecting grooves are connected to the moving block (25). Each installation groove is provided with a connecting hook (42) and a third spring (43). The connecting hook (42) is rotatably connected in the corresponding installation groove. A third spring (43) is fixedly connected between the front end of the connecting hook (42) on one side and the inner wall of the corresponding installation groove, and a third spring (43) is fixedly connected between the rear end of the connecting hook (42) on the other side and the inner wall of the corresponding installation groove. The two rectangular connecting blocks (28) are indirectly abutted against each other through the second lifting drive mechanism, and one end of the connecting hook (42) is pressed inward. At this time, the third spring (43) is in a compressed state, so that the other ends of the two connecting hooks (42) are mutually clamped.

2. The arch support device for reinforcing a water conservancy engineering tunnel according to claim 1, characterized in that: The moving block (25) is provided with a second connecting rod (29) at the front and rear ends, one end of each of the two second connecting rods (29) is movably hinged to the moving block (25), and the other end of each of the two second connecting rods (29) is movably hinged to an arc-shaped connecting block (30); a rectangular notch is provided at one end of the arc-shaped connecting block (30), and an arc notch is provided at the other end of the arc-shaped connecting block (30); a first guide rod (31) is slidably connected in the rectangular notch, one end of the first guide rod (31) is placed in the rectangular notch, and a first spring (33) is provided in the rectangular notch, the first spring (33) is sleeved on the outside of the first guide rod (31), one end of the first spring (33) is fixedly connected to the first guide rod (31), and the other end is fixedly connected to the inner wall of the rectangular notch; the other end of the first guide rod (31) is fixedly connected to a first positioning block (32), and a first positioning rod (34) is longitudinally fixedly connected to the bottom surface of the first positioning block (32); A second guide rod (35) and a second spring (36) are provided in the arc-shaped slot. The second spring (36) is sleeved on the outside of the second guide rod (35). One end of the second spring (36) is fixedly connected to the second guide rod (35), and the other end is fixedly connected to the inner wall of the arc-shaped slot. A second positioning block (37) is fixedly connected to the end of the second guide rod (35), and a second positioning rod (38) is longitudinally fixedly connected to the bottom surface of the second positioning block (37). The proximal ends of the two first positioning rods (34) are respectively slidably connected to the through openings opened at the lower end of the rectangular connecting block (28), and the proximal ends of the two second positioning rods (38) are slidably connected to the through openings opened at the lower end of the arc-shaped connecting plate (13); two third positioning rods (39) and two fourth positioning rods (40) are longitudinally arranged between the two first positioning rods (34) and the two second positioning rods (38); the distal ends of the two third positioning rods (39) are respectively fixed to the bottom surfaces of the arc-shaped connecting blocks (30) on both sides, and the proximal ends of the two third positioning rods (39) are slidably connected to a through opening opened at the lower end of the arc-shaped supporting plate (12); the distal ends of the two fourth positioning rods (40) are respectively fixed to the bottom surfaces of the arc-shaped connecting blocks (30) on both sides, and the proximal ends of the two fourth positioning rods (40) are slidably connected to another through opening opened at the lower end of the arc-shaped supporting plate (12); Protective cloth (41) is provided on both sides of the arc-shaped support plate (12), and the protective cloth (41) is provided on the upper ends of the first positioning rod (34), the second positioning rod (38), the third positioning rod (39) and the fourth positioning rod (40); one side of the protective cloth (41) is connected to the side surfaces of the arc-shaped connecting block (30), the first positioning block (32) and the second positioning block (37), and the other side of the protective cloth (41) is connected to the side surfaces of the arc-shaped support plate (12), the arc-shaped connecting plate (13) and the rectangular connecting block (28).

3. The arch support device for reinforcing a water conservancy engineering tunnel according to claim 1, characterized in that: The jacking drive mechanism comprises a fixed seat (5), a jacking box (8), a jacking hydraulic cylinder (9) and a jacking plate (10); the jacking box (8) is mounted on the top surface of the fixed seat (5), the jacking hydraulic cylinders (9) are mounted at both ends inside the jacking box (8), the top surfaces of the output shafts of the two jacking hydraulic cylinders (9) are longitudinally fixedly connected with the jacking plates (10), the jacking plates (10) are placed in the jacking box (8), and a support pipe (11) is vertically mounted in the middle of the top surface of the jacking plate (10); the lower end of the support pipe (11) is placed in the jacking box (8), and the upper end of the support pipe (11) is located outside the jacking box (8).

4. The vault support device for reinforcing a water conservancy engineering tunnel according to claim 3, characterized in that: The driving assembly comprises a supporting shell (2), a first servo motor (3) and a first screw (4); the first servo motor (3) is installed inside the supporting shell (2); the output shaft of the first servo motor (3) is connected to the first screw (4) via a coupling; one end of the first screw (4) away from the supporting shell (2) is rotatably connected to a fixed seat (5); a movable seat (6) is arranged between the fixed seat (5) and the supporting shell (2) on the same side; the movable seat (6) is threadedly connected to the first screw (4).

5. The arch support device for reinforcing a water conservancy engineering tunnel according to claim 4, characterized in that: The two ends of the movable seat (6) are laterally sleeved with guide rods (7), and the two ends of the guide rod (7) are respectively fixedly connected to the support shell (2) and the fixed seat (5).

6. The arch support device for reinforcing a water conservancy engineering tunnel according to claim 5, characterized in that: The support mechanism also comprises a base (1); the support shell (2) and the fixing seat (5) are both arranged on the base (1).

7. The vault support device for reinforcing a water conservancy engineering tunnel according to claim 6, characterized in that: The side wall of the support shell (2) abuts against the inner wall of the tunnel.

8. The arch support device for reinforcing a water conservancy engineering tunnel according to claim 3, characterized in that: The second lifting drive mechanism comprises a second worm gear (22), a second worm (23) and a second servo motor (24); the second worm gear (22) is horizontally fixedly connected to the lower end of the third screw (21); a through opening is provided at the lower end of the support tube (11); a second worm gear (23) is longitudinally provided on the other side of the second worm gear (22); the second worm gear (23) is meshingly connected to the second worm gear (22) at the through opening of the support tube (11); the front end of the second worm gear (23) is connected to the output shaft of the second servo motor (24) via a coupling; the second servo motor (24) is mounted on the top surface of the lifting plate (10).

9. The arch support device for reinforcing a water conservancy engineering tunnel according to claim 1, characterized in that: The first lifting drive mechanism comprises a transmission box (20), a guide tube (15) and a second screw rod (16); the transmission box (20) is mounted on the top surface of the moving seat (6), and a guide tube (15) is vertically arranged inside the transmission box (20), the guide tube (15) is mounted in the middle of the top surface of the moving seat (6), and a support rod (14) is arranged at the upper end of the guide tube (15), an internal thread groove is provided on the bottom surface of the support rod (14), and the second screw rod (16) is vertically rotatably connected inside the guide tube (15). ), the second screw (16) is threadedly connected to the support rod (14); the lower end of the second screw (16) is horizontally fixedly connected to a first worm wheel (17), the first worm wheel (17) is placed at the lower end of the guide tube (15), and a through opening is opened on one side of the guide tube (15); a first worm (18) is longitudinally provided on one side of the first worm wheel (17), and the first worm (18) is meshedly connected to the first worm wheel (17) at the through opening of the guide tube (15); the first worm (18) is rotationally connected to a transmission box (20).

10. The vault support device for reinforcing a water conservancy engineering tunnel according to claim 9, characterized in that: A hand wheel (19) is fixedly connected to the front end of the first worm (18), and the hand wheel (19) is placed outside the transmission box (20).

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