Hydraulic lifting trolley for construction of tunnel with extra-large section

Abstract

The invention belongs to the technical field of tunnel construction, and particularly relates to a hydraulic lifting trolley for construction of an extra-large section tunnel. A movable frame is slidably connected to the fixed frame, a construction platform is fixedly connected to the top face of the movable frame, and a hydraulic oil cylinder for driving the movable frame to ascend is arranged on the bottom face of the connecting frame. When the supporting frame needs to be conveyed to the construction platform, the moving rod can be moved and adjusted according to the size of the supporting frame, so that the position of the placing block is adjusted, the supporting frame can be placed on the placing groove, and the device can adapt to supporting frames of different sizes to carry out lifting and conveying; when the supporting frame needs to be lifted to the construction platform, the connecting block is lifted by means of the chain set so that the supporting frame on the containing groove can be lifted to the construction platform, at the moment, a worker on the construction platform can carry the supporting frame to the construction platform, and therefore the work of transporting the supporting frame to the construction platform is completed.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel construction, in particular to a hydraulic lifting platform vehicle for construction of a tunnel with an extra-large section. Background Art

[0002] During the tunnel construction process, the hydraulic trolley is an important construction equipment. It has a lifting function, which allows workers to conveniently carry out tunnel construction work on the top construction platform of the hydraulic trolley. The design of this hydraulic trolley takes into account the safety and work efficiency of the construction workers. The lifting of the trolley is controlled by the hydraulic system to ensure that the height of the construction platform can be adjusted as needed to adapt to the construction environment of the extra-large section tunnel. In addition, the stability and carrying capacity of the hydraulic trolley have also been specially strengthened to support the heavy equipment and materials required in the construction process, ensuring the smooth progress of the construction process.

[0003] However, the above technology often has the following defects: a lifting device is provided on the hydraulic lifting trolley to lift the support frame required during the construction process to the construction platform. Since different types of support frames have different lengths, it is difficult to find a universal solution when selecting lifting equipment and lifting methods. For example, a short support frame is suitable for lifting tools with a smaller lifting radius, but a long support frame may require equipment with a larger lifting radius. Frequent replacement of lifting equipment is not only time-consuming and labor-intensive, but may also affect the construction progress due to connection problems during the equipment conversion process. For this reason, the present invention provides a hydraulic lifting trolley for extra-large cross-section tunnel construction. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0005] The technical solution adopted by the present invention to solve its technical problems is: the hydraulic lifting trolley for extra-large cross-section tunnel construction described in the present invention comprises a group of fixed frames; a mobile frame is slidably connected to the fixed frame, the top surface of the mobile frame is fixedly connected to a construction platform, and the bottom surface of the connecting frame is provided with a hydraulic cylinder for driving the mobile frame to rise; the side wall of the fixed frame is fixedly connected to the connecting frame, the inner wall of the connecting frame is slidably connected to a connecting block, and the connecting frame is provided with a chain group for lifting the connecting block; the side wall of the connecting block is provided with a fixed rod, the end of the fixed rod away from the connecting block is slidably connected to the mobile rod, and the end of the mobile rod away from the fixed rod is fixedly connected to a placement block, and the top surface of the placement block is provided with a placement groove.

[0006] Preferably, the interior of the fixed rod is a hollow structure, the movable rod is provided with a through slot, the interior of the movable rod is a hollow structure, the placement block is provided with a connecting slot connected to the through slot, the movable rod is sealingly and slidingly connected to the inner wall of the fixed rod, a first spring is fixedly connected between the end of the movable rod away from the placement block and the inner wall of the fixed rod, the bottom surface of the connecting block is fixedly connected to a first fixing plate, the bottom surface of the first fixing plate is fixedly connected to a hollow first elastic block, a connecting pipe is connected between the first elastic block and the connecting slot, a sealing assembly for sealing the connecting slot is provided in the placement block, and the side wall of the connecting frame is fixedly connected to a second fixing plate that pushes the first elastic block.

[0007] Preferably, the sealing component includes a movable groove opened in the placement block, the movable groove is connected to the connecting groove, the movable groove is sealingly and slidably connected with a sealing plate, the sealing plate can seal the connecting groove, and a movable component for driving the sealing plate to move is provided in the placement block.

[0008] Preferably, the movable component includes a slide groove with a bottom surface of the placement groove, the inner wall of the slide groove is sealed and slidably connected with a slider, a group of second springs are fixedly connected between the bottom surface of the slider and the inner wall of the slide groove, a third spring is fixedly connected between the top surface of the sealing plate and the inner wall of the movable groove, and a through hole is opened between the slide groove and the movable groove.

[0009] Preferably, the side wall of the placement block is fixedly connected with a cylinder extending into the placement groove, the end of the cylinder close to the slider is sealingly and slidably connected with a slide rod, the slide rod is fixedly connected with a clamp plate when moving away from the cylinder, a fourth spring is fixedly connected between the clamp plate and the inner wall of the placement groove, and a conduit is connected between the cylinder and the slide groove.

[0010] Preferably, a ring is fixedly connected to the surface of the fixing rod, and the ring is rotatably connected to the placement block. A positioning assembly for positioning the ring is provided on the placement block. The side wall of the ring is fixedly connected to a first connecting plate, and a push plate capable of pushing the first connecting plate is fixedly connected to the construction platform.

[0011] Preferably, the positioning assembly includes a hollow ring, a group of cylinders are slidably connected to the side of the ring close to the placement block, a ring is fixedly connected to the end of the cylinder close to the fixed rod, a groove for engaging with the cylinder is provided on the side of the placement block close to the fixed rod, and the placement block is provided with a moving mechanism for driving one end of the ring.

[0012] Preferably, the moving mechanism includes a hollow groove opened in the placement block, a magnetic ring is sealed and slidably connected in the hollow groove, the circular ring is made of magnetic material that repels the magnetic ring, a group of fifth springs are fixedly connected between the side of the circular ring away from the placement block and the sleeve ring, a sixth spring is fixedly connected between the side of the magnetic ring away from the fixed rod and the inner wall of the hollow groove, a rectangular plate is fixedly connected to the side of the placement block away from the fixed rod, a hollow second elastic block is fixedly connected to the top surface of the rectangular plate, a fixed tube is connected between the second elastic block and the hollow groove, and a pressure plate for the second elastic block is fixedly connected to the side wall of the connecting frame.

[0013] Preferably, the side wall of the ring close to the construction platform is fixedly connected to the first connecting plate, the side wall of the ring away from the first connecting plate is fixedly connected to the second connecting plate, the side of the placement block close to the second connecting plate is fixedly connected to the first positioning plate, the side of the placement block close to the first connecting plate is fixedly connected to the second positioning plate, and an arc-shaped elastic plate is fixedly connected between the first connecting plate and the second positioning plate.

[0014] Preferably, a side of the placement block close to the moving rod is fixedly connected to a clamping plate via a bracket, and the clamping plate is arc-shaped.

[0015] The beneficial effects of the present invention are as follows: 1. When the support frame in the present invention needs to be transported to the construction platform, the moving rod can be moved and adjusted according to the size of the support frame, so as to adjust the position of the placement block, so that the support frame can be placed on the placement groove, so that the device can adapt to support frames of different sizes for lifting and transportation, and then when the support frame needs to be raised to the construction platform, the connecting block is raised with the help of the chain group, so that the support frame on the placement groove is raised to the construction platform. At this time, the staff on the construction platform can move the support frame to the construction platform, thereby completing the work of transporting the support frame to the construction platform.

[0016] 2. When the placement block needs to be adjusted, the present invention can move the connecting block downward through the chain group, so that the first fixed plate squeezes the first elastic block, so that the gas in the first elastic block enters the connecting groove from the connecting pipe. At this time, the gas will push the placement block, so that the placement block drives the moving rod to move, so as to achieve the effect of adjusting the position of the placement block. After the placement block moves to the appropriate position, stop moving the connecting block, and then seal the connecting groove with the help of the sealing assembly. At this time, the through groove and the interior of the fixed rod are both closed spaces, so that the moving rod will no longer move, so as to position the placement block. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Figure 1It is a three-dimensional diagram of the hydraulic lifting platform vehicle of the present invention; Figure 2 It is a structural schematic diagram of the lifting mechanism in the present invention; Figure 3 It is a schematic diagram of the structure of the placement block, the fixing rod and the connection block in the present invention; Figure 4 It is a schematic diagram of the internal structure of the placement block, the fixing rod and the connection block in the present invention; Figure 5 The present invention Figure 4 Schematic diagram of the local structure; Figure 6 The present invention Figure 2 A magnified image of point A; Figure 7 The present invention Figure 4 Schematic diagram of the local structure; Figure 8 It is a structural schematic diagram of the arc plate and the placement block in the present invention.

[0019] In the figure: 1, fixed frame; 2, construction platform; 3, mobile frame; 4, hydraulic cylinder; 5, connecting block; 6, fixed rod; 7, mobile rod; 8, placement block; 9, placement groove; 10, first fixed plate; 11, second fixed plate; 12, first elastic block; 13, connecting pipe; 14, connecting groove; 15, through groove; 16, mobile groove; 17, sealing plate; 18, through hole; 19, slide groove; 20, slider; 21, clamping plate; 22, guide Tube; 23, round rod; 24, sliding rod; 25, collar; 25, collar; 26, first connecting plate; 27, circular ring; 28, cylinder; 29, slot; 30, hollow slot; 31, first positioning plate; 32, second connecting plate; 33, second positioning plate; 34, elastic plate; 35, rectangular plate; 36, second elastic block; 37, pressing plate; 38, fixing tube; 39, clamping plate; 40, connecting frame; 41, push plate; 42, magnetic ring. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0021] Embodiment 1: Figures 1 to 7As shown, a hydraulic lifting trolley for extra-large-section tunnel construction described in an embodiment of the present invention comprises a set of fixed frames 1; a mobile frame 3 is slidably connected to the fixed frame 1, a construction platform 2 is fixedly connected to the top surface of the mobile frame 3, and a hydraulic cylinder 4 for driving the mobile frame 3 to rise is arranged on the bottom surface of the connecting frame 40; a connecting frame 40 is fixedly connected to the side wall of the fixed frame 1, a connecting block 5 is slidably connected to the inner wall of the connecting frame 40, and a chain group for lifting the connecting block 5 is arranged on the connecting frame 40; a fixed rod 6 is arranged on the side wall of the connecting block 5, a mobile rod 7 is slidably connected to the end of the fixed rod 6 away from the connecting block 5, a placement block 8 is fixedly connected to the end of the mobile rod 7 away from the fixed rod 6, and a placement groove 9 is provided on the top surface of the placement block 8; In the present application, the side walls of the fixed frame 1 are provided with multiple groups of construction frames, which are connected by climbing frames. When the construction platform 2 needs to be adjusted, the entire fixed frame 1 can be raised by the hydraulic cylinder 4 to allow the construction platform 2 to meet the conditions for the construction of extra-large cross-section tunnels. When the support frame in the present application needs to be transported to the construction platform 2, the moving rod 7 can be first moved and adjusted according to the size of the support frame, so as to adjust the position of the placement block 8 so that the support frame can be placed on the placement groove 9, so that the device can adapt to support frames of different sizes for lifting and transportation, and then when the support frame needs to be raised to the construction platform 2, the connecting block 5 is raised with the help of the chain group, so that the support frame on the placement groove 9 can rise to the construction platform 2. At this time, the staff on the construction platform 2 can move the support frame to the construction platform 2, thereby completing the work of transporting the support frame to the construction platform 2.

[0022] The interior of the fixed rod 6 is a hollow structure, a through slot 15 is provided in the movable rod 7, the interior of the movable rod 7 is a hollow structure, a connecting slot 14 connected to the through slot 15 is provided in the placement block 8, the movable rod 7 is sealingly and slidably connected to the inner wall of the fixed rod 6, a first spring is fixedly connected between the end of the movable rod 7 away from the placement block 8 and the inner wall of the fixed rod 6, the bottom surface of the connecting block 5 is fixedly connected to a first fixed plate 10, the bottom surface of the first fixed plate 10 is fixedly connected to a hollow first elastic block 12, a connecting pipe 13 is connected between the first elastic block 12 and the connecting slot 14, a sealing component for sealing the connecting slot 14 is provided in the placement block 8, and a second fixed plate 11 for pushing the first elastic block 12 is fixedly connected to the side wall of the connecting frame 40; When the placement block 8 needs to be adjusted, the present application can move the connecting block 5 downward through the chain group, so that the first fixed plate 10 squeezes the first elastic block 12, so that the gas in the first elastic block 12 enters the connecting groove 14 from the connecting pipe 13. At this time, the gas will push the placement block 8, so that the placement block 8 drives the moving rod 7 to move, so as to achieve the effect of adjusting the position of the placement block 8. After the placement block 8 moves to the appropriate position, stop moving the connecting block 5, and then seal the connecting groove 14 with the help of the sealing assembly. At this time, the through groove 15 and the fixed rod 6 are both closed spaces, so that the moving rod 7 will not move anymore, so as to position the placement block 8.

[0023] The sealing assembly includes a moving groove 16 provided in the placement block 8, the moving groove 16 is communicated with the connecting groove 14, the moving groove 16 is sealingly and slidably connected with a sealing plate 17, the sealing plate 17 can seal the connecting groove 14, and a moving assembly for driving the sealing plate 17 to move is provided in the placement block 8; the present application can control the sealing plate 17 to move downward through the moving assembly, at which time the sealing plate 17 can seal the moving groove 16, and when the position of the placement block 8 needs to be moved, the sealing plate 17 can be driven to move upward by means of the moving assembly The sealing plate 17 moves so that the sealing plate 17 no longer seals the connecting groove 14, and then the first elastic block 12 can be squeezed through the connecting block 5. At this time, after the gas in the first elastic block 12 enters the connecting groove 14, the gas will drive the placement block 8 to move. When the sealing plate 17 does not seal the movable groove 16 and the first elastic block 12 does not contact the first fixed plate 10, the gas entering the connecting groove 14 will enter the first elastic block 12 from the connecting pipe 13, so that the first elastic block 12 is restored, and the moving rod 7 will be reset under the pull of the first spring.

[0024] The moving component includes a slide groove 19 provided on the bottom surface of the placement groove 9, and the inner wall of the slide groove 19 is sealed and slidably connected with a slider 20, a group of second springs are fixedly connected between the bottom surface of the slider 20 and the inner wall of the slide groove 19, a third spring is fixedly connected between the top surface of the sealing plate 17 and the inner wall of the moving groove 16, and a through hole 18 is provided between the slide groove 19 and the moving groove 16; after the placement block 8 in the present application is moved to a suitable position, the support frame will be placed in the placement groove 9, at this time, the support frame will push the slider 20, so that the slider 20 pushes the gas in the slide groove 19, and at this time, the gas will enter the moving groove 16 from the through hole 18, thereby pushing the sealing plate 17 to seal the connecting groove 14, when the support frame is removed from the placement groove 9, the second spring will push the slider 20 for sealing, and at the same time the third spring will pull the sealing plate 17 for sealing, so that the sealing plate 17 no longer seals the connecting groove 14, and the above-mentioned mechanism can achieve the effect of locking the moving rod 7 by placing the support frame.

[0025] The side wall of the placement block 8 is fixedly connected with a cylinder 28 extending into the placement groove 9, and the cylinder 28 is sealed and slidably connected with a slide rod 24 at one end close to the slider 20, and the slide rod 24 is fixedly connected with a clamping plate 21 for movement away from the cylinder 28, and a fourth spring is fixedly connected between the clamping plate 21 and the inner wall of the placement groove 9, and a conduit 22 is connected between the cylinder 28 and the slide groove 19; the elastic force of the fourth spring of the present application is smaller than that of the third spring. When the support frame is placed in the placement groove 9, the slide groove 20 will be pushed by the support frame. At this time, the gas in the slide groove 19 will first enter the moving groove 16 to push the sealing plate 17, so that the sealing plate 17 seals the connecting groove 14. When the sealing plate 17 cannot continue to move, the gas in the slide groove 19 will enter the round rod 23 from the conduit 22, and the slide rod 24 will be pushed, so that the clamping plate 21 clamps the support frame to improve the stability and safety of the support frame during the lifting process.

[0026] A ring 25 is fixedly connected to the surface of the fixing rod 6, and the ring 25 is rotatably connected to the placement block 8. The placement block 8 is provided with a positioning component for positioning the ring 25, and the side wall of the ring 25 is fixedly connected to a first connecting plate 26, and the construction platform 2 is fixedly connected with a push plate 41 that can push the first connecting plate 26; when the support frame in the present application rises to the construction platform 2, the positioning component no longer positions the ring 25, and the push plate 41 pushes the first connecting plate 26, so that the ring 25 drives the fixing rod 6 to rotate, and at this time the support frame on the placement table will tilt to the side close to the construction platform 2, so as to facilitate the staff to take away the support frame and improve safety.

[0027] The positioning assembly includes a hollow ring 25, and a group of cylinders 28 are slidably connected to the side of the ring 25 close to the placement block 8. The cylinder 28 is fixedly connected to a ring 27 at one end close to the fixing rod 6. A slot 29 that is engaged with the cylinder 28 is provided on the side of the placement block 8 close to the fixing rod 6. The placement block 8 is provided with a moving mechanism that drives one end of the ring 27. When the ring 25 needs to be rotated, the mobile mechanism can be used to control the movement of the ring 27 so that the cylinder 28 is disengaged from the slot 29, so that the ring 25 can be rotated. Then, after the support frame is removed, the fixing rod 6 can be rotated to reset the ring 25. At this time, the ring 27 is reset with the help of the mobile control ring 27 so that the cylinder 28 is engaged with the slot 29 to position the fixing rod 6.

[0028] The moving mechanism includes a hollow groove 30 opened in the placement block 8, a magnetic ring 42 is sealed and slidably connected in the hollow groove 30, the circular ring 27 is made of a magnetic material that repels the magnetic ring 42, a group of fifth springs are fixedly connected between the side of the circular ring 27 away from the placement block 8 and the collar 25, a sixth spring is fixedly connected between the side of the magnetic ring 42 away from the fixed rod 6 and the inner wall of the hollow groove 30, a rectangular plate 35 is fixedly connected to the side of the placement block 8 away from the fixed rod 6, and a hollow second elastic spring is fixedly connected to the top surface of the rectangular plate 35. Block 36, a fixing tube 38 is connected between the second elastic block 36 and the hollow groove 30, and the side wall of the connecting frame 40 is fixedly connected with a pressure plate 37 for the second elastic block 36; in the present application, when the placement block 8 moves upward, the pressure plate 37 will squeeze the second elastic block 36, so that the gas in the second elastic block 36 enters the hollow groove 30 from the fixing tube 38, and at this time, the gas will push the magnetic ring 42, so that the magnetic ring 42 synchronously drives the circular ring 27 to move, thereby driving the cylinder 28 to disengage from the slot 29, so that the fixing rod 6 can rotate normally.

[0029] The side wall of the collar 25 close to the construction platform 2 is fixedly connected with a first connecting plate 26, and the side wall of the collar 25 away from the first connecting plate 26 is fixedly connected with a second connecting plate 32. The side of the placement block 8 close to the second connecting plate 32 is fixedly connected with a first positioning plate 31, and the side of the placement block 8 close to the first connecting plate 26 is fixedly connected with a second positioning plate 33. An arc-shaped elastic plate 34 is fixedly connected between the first connecting plate 26 and the second positioning plate 33. When the cylinder 28 of the collar 25 in the present application is detached from the slot 29, the collar 25 will limit the second connecting plate 32 by the first positioning plate 31, so that the collar 25 will only drive the fixing rod 6 to rotate toward the side close to the construction platform 2. When the collar 25 rotates, the second positioning plate 33 will limit the first connecting plate 26 to prevent the fixing rod 6 from rotating too much. When the support frame is removed from the placement slot 9, the elastic plate 34 will push the first connecting plate 26, so that the first connecting plate 26 drives the collar 25 to reset.

[0030] Embodiment 2: Figure 8 As shown, compared with Example 1, another implementation of the present invention is: the side of the placement block 8 close to the moving rod 7 is fixedly connected with a clamping plate 39 through a bracket, and the clamping plate 39 is arc-shaped; some of the support frames in the present application are arc-shaped. When the arc-shaped support frame is lifted, the arch of the support frame can be placed upward so that the support frame contacts the side wall of the placement block 8, and then the moving rod 7 is controlled to move to one side of the connecting block 5. At this time, the clamping plate 39 will clamp the support frame to facilitate the arc-shaped support frame.

[0031] Working principle: In the present application, the side walls of the fixed frame 1 are provided with multiple groups of construction frames, which are connected by climbing frames. When the construction platform 2 needs to be adjusted, the entire fixed frame 1 can be raised by the hydraulic cylinder 4 to allow the construction platform 2 to meet the conditions for the construction of a tunnel with an extra-large section. When the support frame in the present application needs to be transported to the construction platform 2, the moving rod 7 can be first moved and adjusted according to the size of the support frame, thereby adjusting the position of the placement block 8 so that the support frame can be placed on the placement slot 9, so that the device can adapt to support frames of different sizes for lifting and transportation. Then, when the support frame needs to be raised to the construction platform 2, the connecting block 5 is raised with the help of the chain group, so that the support frame on the placement slot 9 rises to the construction platform 2. At this time, the staff on the construction platform 2 can move the support frame to the construction platform 2, thereby completing the work of transporting the support frame to the construction platform 2; When the placement block 8 needs to be adjusted, the present application can move the connecting block 5 downward through the chain group, so that the first fixed plate 10 squeezes the first elastic block 12, so that the gas in the first elastic block 12 enters the connecting groove 14 from the connecting pipe 13. At this time, the gas will push the placement block 8, so that the placement block 8 drives the moving rod 7 to move, so as to achieve the effect of adjusting the position of the placement block 8. After the placement block 8 moves to the appropriate position, stop moving the connecting block 5, and then seal the connecting groove 14 with the help of the sealing component. At this time, the through groove 15 and the fixed rod 6 are both closed spaces, so that the moving rod 7 will not move anymore, so as to position the placement block 8; the present application can control the sealing plate 17 to move downward through the moving component When the sealing plate 17 is moved, the sealing plate 17 can seal the movable groove 16. When the position of the placement block 8 needs to be moved, the sealing plate 17 can be driven to move upward by means of the moving assembly, so that the sealing plate 17 no longer seals the connection groove 14, and then the first elastic block 12 can be squeezed by the connection block 5. At this time, after the gas in the first elastic block 12 enters the connection groove 14, the gas will drive the placement block 8 to move. When the sealing plate 17 does not seal the movable groove 16 and the first elastic block 12 does not contact the first fixed plate 10, the gas entering the connection groove 14 will enter the first elastic block 12 from the connecting pipe 13, so that the first elastic block 12 is restored, and the moving rod 7 will be reset under the pull of the first spring; After the placement block 8 in the present application moves to the appropriate position, the support frame will be placed in the placement groove 9. At this time, the support frame will push the slider 20, so that the slider 20 pushes the gas in the slide groove 19. At this time, the gas will enter the movable groove 16 from the through hole 18, thereby pushing the sealing plate 17 to seal the connecting groove 14. When the support frame is removed from the placement groove 9, the second spring will push the slider 20 to seal, and the third spring will pull the sealing plate 17 to seal, so that the sealing plate 17 no longer seals the connecting groove 14. The above mechanism can be achieved by placing the support frame. The effect of locking the moving rod 7 is achieved; the elastic force of the fourth spring of the present application is smaller than that of the third spring. When the support frame is placed in the placement groove 9, the slider 20 will be pushed by the support frame. At this time, the gas in the slide groove 19 will first enter the moving groove 16 to push the sealing plate 17, so that the sealing plate 17 seals the connecting groove 14. When the sealing plate 17 cannot move further, the gas in the slide groove 19 will enter the round rod 23 from the conduit 22. At this time, the slide rod 24 will be pushed, so that the clamping plate 21 clamps the support frame to improve the stability and safety of the support frame during the lifting process; When the support frame in the present application rises to the construction platform 2, the positioning assembly will no longer position the collar 25, and at the same time the push plate 41 will push the first connecting plate 26, so that the collar 25 drives the fixed rod 6 to rotate. At this time, the support frame placed on the platform will tilt toward the side close to the construction platform 2, so that it is convenient for the staff to take away the support frame and improve safety. When the collar 25 needs to be rotated, the present application can control the movement of the ring 27 with the help of a moving mechanism, so that the cylinder 28 is disengaged from the slot 29, so that the collar 25 can be rotated. Then, after the support frame is removed, the fixed rod 6 can be rotated to reset the collar 25. At this time, the collar 25 is reset with the help of a moving control ring 27, so that the cylinder 28 is engaged with the slot 29 to position the fixed rod 6. When the placement block 8 in the present application moves upward, the pressure plate 37 will squeeze the second elastic block 36, so that the gas in the second elastic block 36 enters the hollow groove 30 from the fixing tube 38. At this time, the gas will push the magnetic ring 42, so that the magnetic ring 42 synchronously drives the circular ring 27 to move, thereby driving the cylinder 28 to disengage from the slot 29, so that the fixing rod 6 can rotate normally; when the cylinder 28 disengages from the slot 29 in the present application, the sleeve 25 will limit the second connecting plate 32 by the first positioning plate 31, so that the sleeve 25 will only drive the fixing rod 6 to rotate toward the side close to the construction platform 2. When the sleeve 25 rotates, the second positioning plate 33 will limit the first connecting plate 26 to prevent the fixing rod 6 from rotating too much. When the support frame is removed from the placement slot 9, the elastic plate 34 will push the first connecting plate 26, so that the first connecting plate 26 drives the sleeve 25 to reset.

[0032] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are 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 understood as limiting the scope of protection of the present invention.

[0034] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A hydraulic lifting platform for extra-large cross-section tunnel construction, comprising a set of fixed frames (1); Features: The fixed frame (1) is slidably connected to a movable frame (3), the top surface of the movable frame (3) is fixedly connected to a construction platform (2), and the bottom surface of the connecting frame (40) is provided with a hydraulic cylinder (4) for driving the movable frame (3) to rise; The side wall of the fixed frame (1) is fixedly connected to a connecting frame (40), the inner wall of the connecting frame (40) is slidably connected to a connecting block (5), and a chain group for lifting the connecting block (5) is provided on the connecting frame (40); A fixing rod (6) is provided on the side wall of the connecting block (5); an end of the fixing rod (6) away from the connecting block (5) is slidably connected to a moving rod (7); an end of the moving rod (7) away from the fixing rod (6) is fixedly connected to a placement block (8); and a placement groove (9) is provided on the top surface of the placement block (8).

2. The hydraulic lifting platform for extra-large cross-section tunnel construction according to claim 1 is characterized in that: The interior of the fixed rod (6) is a hollow structure, a through slot (15) is provided in the movable rod (7), the interior of the movable rod (7) is a hollow structure, a connecting slot (14) connected to the through slot (15) is provided in the placement block (8), the movable rod (7) is sealingly and slidably connected to the inner wall of the fixed rod (6), a first spring is fixedly connected between the end of the movable rod (7) away from the placement block (8) and the inner wall of the fixed rod (6), the bottom surface of the connection block (5) is fixedly connected to a first fixed plate (10), the bottom surface of the first fixed plate (10) is fixedly connected to a hollow first elastic block (12), a connecting pipe (13) is connected between the first elastic block (12) and the connecting slot (14), a sealing component for sealing the connecting slot (14) is provided in the placement block (8), and a second fixed plate (11) for pushing the first elastic block (12) is fixedly connected to the side wall of the connection frame (40).

3. The hydraulic lifting platform for extra-large cross-section tunnel construction according to claim 2 is characterized in that: The sealing component comprises a movable groove (16) provided in the placement block (8), the movable groove (16) being in communication with the connection groove (14), the movable groove (16) being sealingly and slidably connected to a sealing plate (17), the sealing plate (17) being capable of sealing the connection groove (14), and a movable component for driving the sealing plate (17) to move is provided in the placement block (8).

4. The hydraulic lifting platform for extra-large cross-section tunnel construction according to claim 3 is characterized by: The moving assembly comprises a slide groove (19) provided on the bottom surface of the placement groove (9); the inner wall of the slide groove (19) is sealed and slidably connected to a slider (20); a group of second springs are fixedly connected between the bottom surface of the slider (20) and the inner wall of the slide groove (19); a third spring is fixedly connected between the top surface of the sealing plate (17) and the inner wall of the moving groove (16); and a through hole (18) is provided between the slide groove (19) and the moving groove (16).

5. The hydraulic lifting platform vehicle for extra-large cross-section tunnel construction according to claim 4 is characterized in that: The side wall of the placement block (8) is fixedly connected to a cylinder (28) extending into the placement groove (9); one end of the cylinder (28) close to the slider (20) is sealed and slidably connected to a slide rod (24); the slide rod (24) is fixedly connected to a clamping plate (21) when it moves away from the cylinder (28); a fourth spring is fixedly connected between the clamping plate (21) and the inner wall of the placement groove (9); and a conduit (22) is connected between the cylinder (28) and the slide groove (19).

6. The hydraulic lifting platform for extra-large cross-section tunnel construction according to claim 2 is characterized in that: A collar (25) is fixedly connected to the surface of the fixing rod (6), the collar (25) is rotatably connected to the placement block (8), a positioning assembly for positioning the collar (25) is provided on the placement block (8), a first connecting plate (26) is fixedly connected to the side wall of the collar (25), and a push plate (41) capable of pushing the first connecting plate (26) is fixedly connected to the construction platform (2).

7. The hydraulic lifting platform for extra-large cross-section tunnel construction according to claim 6 is characterized by: The positioning assembly comprises a hollow collar (25), a side of the collar (25) close to the placement block (8) being slidably connected to a group of cylinders (28), an end of the cylinder (28) close to the fixed rod (6) being fixedly connected to a ring (27), a side of the placement block (8) close to the fixed rod (6) being provided with a slot (29) for engaging with the cylinder (28), and the placement block (8) being provided with a moving mechanism for driving one end of the ring (27).

8. The hydraulic lifting platform vehicle for extra-large cross-section tunnel construction according to claim 7 is characterized in that: The moving mechanism comprises a hollow groove (30) provided in a placement block (8), a magnetic ring (42) being sealed and slidably connected in the hollow groove (30), the circular ring (27) being made of a magnetic material that repels the magnetic ring (42), a group of fifth springs being fixedly connected between a side of the circular ring (27) away from the placement block (8) and a sleeve ring (25), a sixth spring being fixedly connected between a side of the magnetic ring (42) away from the fixing rod (6) and an inner wall of the hollow groove (30), a rectangular plate (35) being fixedly connected to a side of the placement block (8) away from the fixing rod (6), a hollow second elastic block (36) being fixedly connected to a top surface of the rectangular plate (35), a fixing pipe (38) being connected between the second elastic block (36) and the hollow groove (30), and a pressing plate (37) for the second elastic block (36) being fixedly connected to a side wall of the connecting frame (40).

9. The hydraulic lifting platform vehicle for extra-large cross-section tunnel construction according to claim 8 is characterized in that: The side wall of the collar (25) close to the construction platform (2) is fixedly connected to a first connecting plate (26), the side wall of the collar (25) away from the first connecting plate (26) is fixedly connected to a second connecting plate (32), the side of the placement block (8) close to the second connecting plate (32) is fixedly connected to a first positioning plate (31), the side of the placement block (8) close to the first connecting plate (26) is fixedly connected to a second positioning plate (33), and an arc-shaped elastic plate (34) is fixedly connected between the first connecting plate (26) and the second positioning plate (33).

10. The hydraulic lifting platform vehicle for extra-large cross-section tunnel construction according to claim 4 is characterized in that: A side of the placement block (8) close to the moving rod (7) is fixedly connected to a clamping plate (39) via a bracket, and the clamping plate (39) is arc-shaped.

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