A steel corrugated plate jacking lifting device

Abstract

The present application belongs to the technical field of tunnel construction lifting equipment, solves the inconvenience of lifting the steel corrugated plate in the tunnel to the jacking device in the prior art, and provides a steel corrugated plate jacking and lifting device, which comprises a movable rack, a first lifting assembly arranged on both sides of the rear end of the movable rack, and a second lifting assembly arranged on both sides of the top of the movable rack. The first lifting assembly can lift the steel corrugated plate on the ground upward to a height that can be lifted by the second lifting assembly, and the second lifting assembly is used for lifting the steel corrugated plate to the installation position. The first lifting assembly comprises a first rotary body and a plurality of first protrusions arranged equidistantly on the first rotary body. The second lifting assembly comprises a second rotary body and a plurality of pairs of second protrusions arranged equidistantly on the second rotary body. An adjustable-width channel is arranged between each pair of second protrusions. The first lifting assembly of the device cooperates with the second lifting assembly, and the steel corrugated plate can be efficiently and conveniently transferred to the installation position.

Description

A corrugated steel plate lifting and supporting device Technical Field

[0001] This invention relates to the field of tunnel construction lifting equipment technology, specifically to a corrugated steel plate lifting and supporting device. Background Technology

[0002] Corrugated steel sheets are a multi-functional "prefabricated" building material used in tunnel construction. Their applications are mainly concentrated in four scenarios: new support structures, internal formwork, central partition walls, and reinforcement. Their core advantages are fast construction speed and strong adaptability. Currently, the construction of corrugated steel sheets in tunnels is primarily carried out through factory prefabrication and on-site assembly.

[0003] In the installation of corrugated steel sheets inside tunnels, the two main methods for lifting corrugated steel sheets are as follows:

[0004] The first method involves using a crane to lift the corrugated steel sheet. During construction, the two sides of the corrugated steel sheet are tied together with steel strands and attached to the crane boom. The crane operator primarily controls the position and orientation of the sheet. Ground workers then assist by manning a trolley or temporary platform to guide the sheet to the predetermined installation position before installation and securing it. This method is not only inefficient and costly in terms of labor, but also severely limited by tunnel construction space and poses certain safety hazards.

[0005] The second method involves using a lifting device on a trolley to lift the corrugated steel sheet. During construction, the sheet is transferred to the lifting device, and the trolley moves longitudinally along the tunnel to adjust the work position. The lifting device, positioned longitudinally on the trolley, precisely adjusts the sheet to the pre-set installation position. Compared to the first method, which uses a crane to directly lift the sheet, this method alleviates some of the inconvenience and high labor costs associated with crane operation. However, this method does not solve the problem of how the sheet reaches the lifting device. Currently, the mainstream method still involves using a crane to first lift the sheet onto the lifting device. While this reduces the use of cranes, the confined space of a tunnel still presents challenges in crane turning, lifting the sheet, and aligning it with the lifting device. Summary of the Invention

[0006] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this disclosure provides a steel corrugated plate lifting and supporting device.

[0007] To achieve the aforementioned objective, the present invention provides a corrugated steel sheet lifting and supporting device, including a movable platform, a first lifting component disposed on both sides of the rear end of the movable platform, and a second lifting component disposed on both sides of the top of the movable platform. The first lifting component is capable of lifting the corrugated steel sheet on the ground upward to a height that can be lifted by the second lifting component, and the second lifting component is used to lift the corrugated steel sheet to the installation position.

[0008] The first lifting assembly includes a first rotating body and a plurality of first protrusions equidistantly arranged on the first rotating body, the first rotating body being able to support itself on the inner surface of the corrugated steel plate.

[0009] The second lifting assembly includes a second rotating body and a plurality of pairs of second protrusions equidistantly arranged on the second rotating body. The second rotating body can be supported on the inner surface of the corrugated steel plate, and an adjustable-width channel is provided between each pair of second protrusions.

[0010] Both the first and second protrusions can be inserted into the grooves of the corrugated steel plate. At the opposite ends of the first and second lifting components, the channel and the first protrusion are both in a state where the top width is greater than the bottom width. When the first rotating body transfers the corrugated steel plate to the second rotating body by rotating clockwise, the first protrusion can pass over the second protrusion through the channel. When the first rotating body rotates counterclockwise, it pushes the second protrusion to make the second rotating body rotate clockwise.

[0011] Optionally, both the first and second rotating bodies have a rectangular structure;

[0012] The first lifting assembly also includes a first rotating wheel, a forward and reverse motor, and a first rotating rod. One of the first rotating wheels is provided at each of the four corners of the first rotating body. The forward and reverse motor is connected to one of the first rotating wheels. The first rotating rod is evenly arranged on the inner surface of the first rotating body along the circumference of the first rotating body to support the first rotating body.

[0013] The second lifting component also includes a second rotating wheel, with one of the two rotating wheels located at each of the four corners of the second rotating body.

[0014] Optionally, the distance between two adjacent second protrusions is twice the distance between two adjacent first protrusions, the length of the longitudinal portion of the first rotating body is greater than the length of the longitudinal portion of the second rotating body, and the length difference between the longitudinal portion of the first rotating body and the longitudinal portion of the second rotating body is less than the distance between two adjacent first protrusions.

[0015] Optionally, the first lifting assembly further includes a first housing, a first movable frame, a first screw lift, and a first longitudinal drive mechanism. The first rotating body is rotatably disposed within the first housing. The first housing is slidably mounted on the first movable frame in the height direction. The first screw lift is mounted on the first movable frame and is used to drive the first lifting assembly to move up and down. The first movable frame is slidably mounted on the bottom of the movable platform. The first longitudinal drive mechanism is mounted on the bottom of the movable platform and is used to drive the first movable frame to move longitudinally along the tunnel on the movable platform.

[0016] Optionally, the second rotating body includes two belts spaced apart, and the second lifting assembly further includes a mounting frame, a movable frame, a support spring, and an inner top spring. The two ends of the mounting frame are fixedly connected to the two belts respectively via shafts. The movable frame is slidably mounted in the mounting frame. The support spring is disposed between the mounting frame and the movable frame. The second protrusion is slidably disposed on both sides inside the movable frame, and the inner top spring is disposed between the second protrusion and the movable frame.

[0017] Optionally, the second lifting assembly further includes a second rotating rod, a second housing, and a displacement groove. The second rotating rod passes between the two belts, and a plurality of second rotating rods are evenly arranged along the circumference of the belts. The second rotating rod is fixedly connected to the two belts. The belts are rotatably disposed within the second housing. The displacement grooves are disposed on the inner walls of both sides of the second housing. The two ends of the second rotating rod pass through the two belts respectively, and when the belts rotate, the ends of the second rotating rods pass through the displacement grooves and the top and bottom of the second housing.

[0018] Preferably, the second lifting assembly further includes a locking assembly, with one set of locking assemblies on each side of the second housing. The locking assembly includes two locking frames and a locking spring. The locking frames are fork comb frames, and the two locking frames are arranged vertically opposite each other. One end of the locking spring is connected to the second housing, and the other end of the locking spring is connected to the locking frame. The elastic force of the locking spring allows the locking frame to be inserted into the gap between the second rotating rods at the top and bottom of the belt body. When the second lifting assembly rejoins the first lifting assembly, the first lifting assembly squeezes the locking frame, causing the locking frame to be pulled out from the gap between the two second rotating rods.

[0019] Optionally, the locking assembly includes a synchronization plate, a rotating plate, and an unlocking rod. One rotating plate is provided on each side of the second housing. Two rotating plates are rotatably mounted on the middle and front end of the synchronization plate. The opposite ends of the two rotating plates are rotatably connected to the ends of the two lock frames, respectively. The unlocking rod is fixed to the top of the synchronization plate. The first lifting assembly pushes the unlocking rod forward, causing the synchronization plate to pull the lock frame out of the gap between the two second rotating rods.

[0020] Optionally, the second lifting assembly further includes a second movable frame, a second screw lift, and a second longitudinal drive mechanism. The second movable frame is slidably mounted on the top of the movable platform, the second screw lift is mounted on the second movable frame, the second housing is fixedly mounted on the top of the second screw lift, and the second longitudinal drive mechanism is mounted on the top of the movable platform for driving the second movable frame to move longitudinally along the tunnel on the movable platform.

[0021] Optionally, the top of the movable platform is provided with a through groove, the second lifting assembly further includes a slide rod, the top end of the slide rod is fixedly connected to both sides of the bottom of the second housing, the second screw lift includes a second screw sleeve, a second screw and a second motor, the second screw sleeve is rotatably mounted on the second movable frame, the second screw is threaded through the second screw sleeve, the top end of the second screw is fixedly connected to the bottom of the second housing, and the bottom ends of the slide rod and the second screw sleeve both penetrate the through groove.

[0022] The technical solution provided in this disclosure has the following advantages compared with the prior art:

[0023] 1. By setting up a first lifting component and a second lifting component that can be connected, the first lifting component can lift the corrugated steel sheet on the ground to a height that can be supported by the second lifting component. Then, through the connection between the second lifting component and the first lifting component, combined with the first rotating body, the first protrusion, the second rotating body and the second protrusion, the corrugated steel sheet on the first lifting component can be directly transferred to the second lifting component. The second lifting component then lifts the corrugated steel sheet to the installation position. Thus, during the transfer of the corrugated steel sheet, there is no need to use an external crane to lift the corrugated steel sheet onto the jacking device. This avoids the inconvenience of lifting, turning and aligning the corrugated steel sheet with the jacking device in the confined space of the tunnel, thereby improving the construction efficiency and safety of the corrugated steel sheet.

[0024] 2. By setting a channel within the second protrusion, the first protrusion can pass through the channel and cross the second protrusion when rotating clockwise, while the first protrusion can push the second protrusion and cause the second rotating body to move when rotating counterclockwise. Thus, the first lifting component can drive the second lifting component to adjust the position of the corrugated steel plate, ensuring that the second lifting component can support the corrugated steel plate in the middle position, thereby providing more balanced support and lifting of the corrugated steel plate and improving the stability and safety of the corrugated steel plate construction. Attached Figure Description

[0025] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 is a schematic diagram of the first and second lifting components of the steel corrugated plate lifting and supporting device of the present invention when they are about to be connected.

[0027] Figure 2 is a schematic diagram of the structure of the first lifting component of the present invention;

[0028] Figure 3 is a schematic diagram of the first housing of the present invention after being cut open;

[0029] Figure 4 is a structural schematic diagram of the second lifting component of the present invention;

[0030] Figure 5 is a partial schematic diagram of the second lifting component of the present invention;

[0031] Figure 6 is a schematic diagram of the structure of the second housing of the present invention;

[0032] Figure 7 is a schematic diagram of the present invention with the second housing removed from Figure 5;

[0033] Figure 8 is a schematic diagram of the installation of the second protrusion in Figure 7 of the present invention.

[0034] Wherein, 1-movable platform; 2-first lifting assembly; 21-first rotating body; 22-first protrusion; 23-first rotating wheel; 24-forward and reverse motor; 25-first rotating rod; 26-first housing; 27-first moving frame; 28-first screw lift; 281-first screw sleeve; 282-first screw; 283-first motor; 29-first longitudinal drive mechanism; 291-first lead screw; 292-first power motor; 3-second lifting assembly; 31-second rotating body; 32-second protrusion; 33-channel; 34-second rotating wheel; 35-mounting frame 36-Moveable frame; 37-Support spring; 38-Inner top spring; 39-Second rotating rod; 310-Second housing; 311-Displacement groove; 312-Locking frame; 313-Locking spring; 314-Synchronizing plate; 315-Rotating plate; 316-Unlocking rod; 317-Second moving frame; 318-Second screw lift; 3181-Second screw sleeve; 3182-Second screw; 3183-Second motor; 319-Second longitudinal drive mechanism; 3191-Second lead screw; 3192-Second power motor; 320-Slide rod; 321-Receiving groove; 4-Through groove. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should fall within the scope of the technical content disclosed in the present invention. It should be noted that in this specification, relational terms such as "first" and "second" are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0037] As shown in Figure 1, this application discloses a corrugated steel sheet lifting and supporting device, including a mobile platform 1, a first lifting component 2 disposed on both sides of the rear end of the mobile platform 1, and a second lifting component 3 disposed on both sides of the top of the mobile platform 1. The first lifting component 2 can lift the corrugated steel sheet on the ground to a height that can be lifted by the second lifting component 3, and the second lifting component 3 is used to lift the corrugated steel sheet to the installation position.

[0038] As shown in Figure 2, the first lifting component 2 includes a first rotating body 21 and a plurality of first protrusions 22 equidistantly arranged on the first rotating body 21. The first rotating body 21 can be supported on the inner surface of the corrugated steel plate.

[0039] As shown in Figures 4 and 5, the second lifting assembly 3 includes a second rotating body 31 and several pairs of second protrusions 32 equidistantly arranged on the second rotating body 31. The second rotating body 31 can be supported on the inner surface of the corrugated steel plate, and an adjustable-width channel 33 is provided between each pair of second protrusions 32.

[0040] Both the first protrusion 22 and the second protrusion 32 can be inserted into the groove of the corrugated steel plate. At the opposite ends of the first lifting assembly 2 and the second lifting assembly 3, the channel 33 and the first protrusion 22 are both in a state where the top width is greater than the bottom width. When the first rotating body 21 transfers the corrugated steel plate to the second rotating body 31 by rotating clockwise, the first protrusion 22 can pass over the second protrusion 32 through the channel 33. When the first rotating body 21 rotates counterclockwise, it pushes the second protrusion 32 to make the second rotating body 31 rotate clockwise.

[0041] When installing the corrugated steel sheet, the corrugated steel sheet is hoisted onto the ground at the rear end of the mobile platform 1. Then, the corrugated steel sheet is lifted to the top of the mobile platform 1 by the first lifting assembly 2, and then connected to the front end of the first lifting assembly 2 by the second lifting assembly 3. When the first rotating body 21 rotates clockwise, it cooperates with the first protrusion 22 to transfer the corrugated steel sheet to the top of the second rotating body 31. During this process, at the docking end of the first lifting assembly 2 and the second lifting assembly 3, when the first protrusion 22 passes through the channel 33 in the second protrusion 32, the corrugated steel sheet can avoid the second rotating body 31 from rotating counterclockwise under the obstruction of the first protrusion 22. As a result, the channel 33 is squeezed and widened by the first protrusion 22, so that the first protrusion 22 passes over the second protrusion 32.

[0042] When the two ends of the corrugated steel plate are respectively located on the first rotating body 21 and the second rotating body 31, the first protrusion 22 and the second protrusion 32 are both inserted into the groove of the corrugated steel plate. During the subsequent transfer of the corrugated steel plate, the first protrusion 22 pushes the corrugated steel plate to move, and the corrugated steel plate pushes the second protrusion 32 to make the second rotating body 31 rotate synchronously.

[0043] Specifically, the first rotating body 21 and the second rotating body 31 are set to have the same length.

[0044] At this time, when the width of the corrugated steel plate is greater than the length of the first rotating body 21 and the second rotating body 31, the corrugated steel plate can be completely moved onto the second lifting assembly 3 by directly using the first rotating body 21 and the first protrusion 22, and the second rotating body 31 can be supported in the middle of the corrugated steel plate, ensuring the stability of the second lifting assembly 3 when lifting the corrugated steel plate.

[0045] Furthermore, when the width of the corrugated steel plate is less than the length of the first rotating body 21 and the second rotating body 31, after the corrugated steel plate is separated from the first rotating body 21, the first protrusion 22 pushes the second protrusion 32 to make the second rotating body 31 rotate clockwise by the reversal of the first rotating body 21, so that the corrugated steel plate continues to be transferred onto the second rotating body 31, and the second rotating body 31 can be supported in the middle of the corrugated steel plate.

[0046] Therefore, through the cooperation of the first lifting component 2 and the second lifting component 3, it is no longer necessary to use hoisting equipment to lift the corrugated steel sheet onto the second lifting component 3. This solves the inconvenience of using hoisting equipment when lifting corrugated steel sheets in the narrow space of the tunnel, and can improve the installation efficiency and construction safety of the corrugated steel sheet.

[0047] As shown in Figures 3 and 7, both the first rotating body 21 and the second rotating body 31 have a rectangular structure, making the longitudinal parts of the first rotating body 21 and the second rotating body 31 straight. This allows the first rotating body 21 to pass through the channel 33 more effectively when rotating clockwise, and when rotating counterclockwise, the wider side of the first protrusion 22 can better push the narrower side of the second protrusion 32 corresponding to the channel 33, thus improving the effect of the first rotating body 21 driving the second rotating body 31 to rotate clockwise.

[0048] As shown in Figures 2, 3, 5 and 7, the first lifting assembly 2 also includes a first rotating wheel 23, a forward and reverse motor 24 and a first rotating rod 25. One first rotating wheel 23 is provided at each of the four corners of the first rotating body 21. The forward and reverse motor 24 is connected to one of the first rotating wheels 23. The first rotating rod 25 is evenly arranged on the inner surface of the first rotating body 21 along the circumference of the first rotating body 21 to support the first rotating body 21.

[0049] The first rotating wheel 23 and the first rotating rod 25 can keep the first rotating body 21 stable in a rectangular state, and the first rotating rod 25 can better support the first rotating body 21, thereby improving the stability of the first rotating body 21 in supporting the corrugated steel plate.

[0050] The second lifting component 3 also includes a second rotating wheel 34, one of which is provided at each of the four corners of the second rotating body 31.

[0051] As shown in Figures 3 and 5, the distance between two adjacent second protrusions 32 is twice the distance between two adjacent first protrusions 22. The length of the longitudinal portion of the first rotating body 21 is greater than the length of the longitudinal portion of the second rotating body 31, and the length difference between the longitudinal portion of the first rotating body 21 and the longitudinal portion of the second rotating body 31 is less than the distance between two adjacent first protrusions 22.

[0052] As shown in Figures 3 and 5, the first rotating body 21 has two first protrusions 22 on its longitudinal portion at the same time, and the second rotating body 31 has one second protrusion 32 on its longitudinal portion at the same time. During the process of the second lifting component 3 actively engaging with the front end of the first lifting component 2, only one second protrusion 32 is pushed downward at the docking end, causing the second rotating body 31 to rotate counterclockwise. This reduces the interference of the second protrusion 32 on the first lifting component 2 and the second lifting component 3.

[0053] As shown in Figures 2 and 3, the first lifting assembly 2 also includes a first housing 26, a first movable frame 27, a first screw lift 28, and a first longitudinal drive mechanism 29. The first rotating body 21 is rotatably disposed inside the first housing 26. The first housing 26 is slidably mounted on the first movable frame 27 in the height direction. The first screw lift 28 is mounted on the first movable frame 27 and is used to drive the first lifting assembly 2 to move up and down. The first movable frame 27 is slidably mounted on the bottom of the movable platform 1. The first longitudinal drive mechanism 29 is mounted on the bottom of the movable platform 1 and is used to drive the first movable frame 27 to move longitudinally along the tunnel on the movable platform 1.

[0054] The top and front ends of the first housing 26 are open. The first rotating wheel 23 and the first rotating rod 25 are installed inside the first housing 26. The forward and reverse motor 24 is installed on the surface of the first housing 26. The upper surface of the first rotating body 21 is located above the first housing 26.

[0055] As shown in Figure 2, the first screw lift 28 includes a first screw sleeve 281, a first screw 282 and a first motor 283. The first housing 26 is fixedly connected to the first screw sleeve 281. The first screw sleeve 281 is slidably engaged with the first moving frame 27 in the height direction. The first screw 282 is threadedly engaged with the first screw sleeve 281. The first motor 283 is mounted on the first moving frame 27.

[0056] As shown in Figure 2, the first longitudinal drive mechanism 29 includes a first lead screw 291 and a first power motor 292. The first lead screw 291 is threadedly engaged with the first movable frame 27. The first power motor 292 is installed at the bottom of the movable platform 1 and can drive the first lead screw 291 to rotate.

[0057] As shown in Figures 5 and 8, the second rotating body 31 includes two belts spaced apart. The second lifting assembly 3 also includes a mounting frame 35, a movable frame 36, a support spring 37, and an inner top spring 38. The two ends of the mounting frame 35 are fixedly connected to the two belts respectively through shafts. The movable frame 36 is slidably mounted inside the mounting frame 35. The support spring 37 is disposed between the mounting frame 35 and the movable frame 36. The second protrusion 32 is slidably disposed on both sides inside the movable frame 36, and the inner top spring 38 is disposed between the second protrusion 32 and the movable frame 36.

[0058] The support spring 37 supports the movable frame 36 at its furthest position from the bottom of the mounting frame 35, allowing the second protrusion 32 to extend out of the mounting frame 35 and insert into the groove of the corrugated steel plate. The gap between the two belts provides space for the mounting frame 35, the movable frame 36, and the second protrusion 32 to rotate. The inner top spring 38 keeps the channel 33 in its narrowest state initially. When the first protrusion 22 passes through the channel 33, it can push the second protrusion 32 to displace and compress the inner top spring 38.

[0059] When the width of the corrugated steel plate is greater than that of the first rotating body 21 and the second rotating body 31, when the second lifting assembly 3 moves towards the first lifting assembly 2 for docking, the second lifting assembly 3 is first moved from bottom to top near the front end of the first lifting assembly 2 to a position that matches the height of the first lifting assembly 2. During this process, if the second protrusion 32 located on the top of the second rotating body 31 is not aligned with the groove of the corrugated steel plate, it can be pressed downward by the groove of the corrugated steel plate, causing the movable frame 36 to drive the second protrusion 32 to move downward within the mounting frame 35 and compress the support spring 37. Then, the second lifting assembly 3 moves towards the first lifting assembly 2, completing the docking of the second lifting assembly 3 and the first lifting assembly 2.

[0060] During the subsequent transfer of the corrugated steel plate, when the groove of the corrugated steel plate moves above the top protrusion of the second rotating body 31, the support spring 37 automatically resets and drives the second protrusion 32 to insert upward into the groove of the corrugated steel plate through the movable frame 36.

[0061] As shown in Figures 5 to 7, the second lifting assembly 3 also includes a second rotating rod 39, a second housing 310, and a displacement groove 311. The second rotating rod 39 passes between the two belts, and multiple second rotating rods 39 are evenly arranged along the circumference of the belts. The second rotating rod 39 is fixedly connected to the two belts. The belts are rotatably disposed inside the second housing 310. The displacement grooves 311 are disposed on the inner walls of both sides of the second housing 310. The two ends of the second rotating rod 39 pass through the two belts respectively, and when the belts rotate, the ends of the second rotating rod 39 will pass through the displacement grooves 311 and the top and bottom of the second housing 310.

[0062] The second rotating rod 39 not only connects the two belts into a whole, greatly improving the stability of the second rotating body 31, but also enhances the stability of the second rotating body 31 when supporting the corrugated steel plate by supporting it on top of the second housing 310. Part of the second rotating rod 39 is located within the displacement groove 311, and part is located at the bottom of the second housing 310. This arrangement improves the stability of the second rotating body 31 when maintaining a rectangular shape.

[0063] As shown in Figure 6, the top and rear ends of the second housing 310 are open, the front end of the first housing 26 is open, and the docking point of the first lifting component 2 and the second lifting component 3 is located at the front end of the first housing 26 and the rear end of the second housing 310.

[0064] The gap between the two belts is wider than the width of the first rotating body 21, and the opening width at the rear end of the second housing 310 is wider than the front end width of the first housing 26. When the first lifting assembly 2 and the second lifting assembly 3 are docked, the front end of the first housing 26 enters the rear end of the second housing 310.

[0065] As shown in Figures 5 and 7, the second lifting assembly 3 also includes a locking assembly. A set of locking assemblies is provided on both sides of the second housing 310. The locking assembly includes two locking frames 312 and a locking spring 313. The locking frame 312 is a comb frame. The two locking frames 312 are distributed vertically opposite each other. One end of the locking spring 313 is connected to the second housing 310, and the other end of the locking spring 313 is connected to the locking frame 312. The elastic force of the locking spring 313 allows the locking frame 312 to be inserted into the gap between the second rotating rods 39 at the top and bottom of the belt. When the second lifting assembly 3 is connected to the first lifting assembly 2, the first lifting assembly 2 causes the locking frame 312 to be pulled out from the gap between the two second rotating rods 39 by squeezing the locking frame 312.

[0066] As shown in Figure 6, the inner wall of the second housing 310 is provided with a receiving groove 321 for accommodating the lifting movement of the locking frame 312. The locking frame 312 is slidably mounted on the second housing 310. When the first lifting assembly 2 and the second lifting assembly 3 are not in the docking state, the locking frame 312, in conjunction with the second rotating rod 39, locks the second rotating body 31. At this time, the second rotating body 31 will not rotate, thus stably supporting the corrugated steel plate.

[0067] During the docking process of the first lifting component 2 and the second lifting component 3, the first lifting component 2 can automatically unlock the locking component, so that the second rotating body 31 can automatically switch to a state in which it can perform rotational motion.

[0068] As shown in Figures 5 and 7, the locking assembly also includes a synchronizing plate 314, a rotating plate 315, and an unlocking rod 316. One rotating plate 315 is provided on each side of the second housing 310. Two rotating plates 315 are rotatably installed in the middle and front end of the synchronizing plate 314. The opposite ends of the two rotating plates 315 are rotatably connected to the ends of the two locking frames 312 respectively. The unlocking rod 316 is fixed to the top of the synchronizing plate 314. The first lifting assembly 2 pushes the unlocking rod 316 forward, causing the synchronizing plate 314 to drive the locking frame 312 to be pulled out from the gap between the two second rotating rods 39.

[0069] The synchronization plate 314 is L-shaped, and the top of the synchronization plate 314 extends to the rear end of the top of the second housing 310. The height of the unlocking rod 316 is less than the height of the upper surface of the second rotating body 31, so that the unlocking rod 316 will not touch the corrugated steel plate.

[0070] During the docking process of the first lifting assembly 2 and the second lifting assembly 3, the front end of the first housing 26 presses the unlocking rod 316, the unlocking rod 316 moves forward and drives the synchronizing plate 314 to move forward, the locking spring 313 is compressed, and the synchronizing plate 314 causes the two locking frames 312 located on the same side of the second housing 310 to move relative to each other through the rotating plate 315, thereby unlocking the second rotating body 31 and switching the second rotating body 31 to a state in which it can perform rotational motion.

[0071] As shown in Figure 4, the second lifting assembly 3 also includes a second movable frame 317, a second screw lift 318, and a second longitudinal drive mechanism 319. The second movable frame 317 is slidably mounted on the top of the movable platform 1. The second screw lift 318 is mounted on the second movable frame 317. The second housing 310 is fixedly mounted on the top of the second screw lift 318. The second longitudinal drive mechanism 319 is mounted on the top of the movable platform 1 and is used to drive the second movable frame 317 to move longitudinally along the tunnel on the movable platform 1.

[0072] As shown in Figure 4, the second longitudinal drive mechanism 319 includes a second lead screw 3191 and a second power motor 3192. The second lead screw 3191 is threadedly engaged with the second movable frame 317. The second power motor 3192 is connected to the second lead screw 3191 and is mounted on the top of the movable platform 1. The second power motor 3192 can drive the second lead screw 3191 to rotate.

[0073] As shown in Figure 1, the top of the movable platform 1 is provided with a through groove 4. The second lifting assembly 3 also includes a slide rod 320. The top end of the slide rod 320 is fixedly connected to both sides of the bottom of the second housing 310. The second screw lift 318 includes a second screw sleeve 3181, a second screw 3182, and a second motor 3183. The second screw sleeve 3181 is rotatably mounted on the second movable frame 317. The second screw 3182 is threaded through the second screw sleeve 3181. The top end of the second screw 3182 is fixedly connected to the bottom of the second housing 310. The bottom ends of the slide rod 320 and the second screw sleeve 3181 both pass through the through groove 4.

[0074] The second screw 3182 lifts the corrugated steel plate and lowers the second lifting assembly 3 by performing lifting and lowering movements. Combined with the through slot 4, the second screw lift 318 allows the second lifting assembly 3 to be at a very low height in the initial state, thereby reducing the lifting height of the first screw lift 28 and better accommodating the docking of the first lifting assembly 2 and the second lifting assembly 3.

[0075] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A steel corrugated plate lifting and supporting device, characterized in that, The system includes a mobile platform (1), a first lifting assembly (2) disposed on both sides of the rear end of the mobile platform (1), and a second lifting assembly (3) disposed on both sides of the top of the mobile platform (1). The first lifting assembly (2) can lift the corrugated steel plate on the ground to a height that can be lifted by the second lifting assembly (3), and the second lifting assembly (3) is used to lift the corrugated steel plate to the installation position. The first lifting assembly (2) includes a first rotating body (21) and a plurality of first protrusions (22) equidistantly disposed on the first rotating body (21). The first rotating body (21) can be supported on the inner surface of the corrugated steel plate. The second lifting assembly (3) includes a second rotating body (31) and a plurality of pairs of second protrusions (32) equidistantly disposed on the second rotating body (31). The second rotating body (31) can be supported on the inner surface of the corrugated steel plate. An adjustable channel (33) is provided between each pair of second protrusions (32). The first protrusion (22) and the second protrusion (32) can both be inserted into the groove of the corrugated steel plate. At the opposite ends of the first lifting assembly (2) and the second lifting assembly (3), the channel (33) and the first protrusion (22) are both in a state where the top width is greater than the bottom width. When the first rotating body (21) transfers the corrugated steel plate to the second rotating body (31) by rotating clockwise, the first protrusion (22) can pass over the second protrusion (32) through the channel (33). When the first rotating body (21) rotates counterclockwise, it pushes the second protrusion (32) to make the second rotating body (31) rotate clockwise.

2. The corrugated steel plate lifting and supporting device according to claim 1, characterized in that, The first rotating body (21) and the second rotating body (31) are both rectangular in shape; the first lifting assembly (2) also includes a first rotating wheel (23), a forward and reverse motor (24) and a first rotating rod (25). The first rotating wheel (23) is provided at each of the four corners of the first rotating body (21). The forward and reverse motor (24) is connected to one of the first rotating wheels (23). Multiple first rotating rods (25) are evenly arranged on the inner surface of the first rotating body (21) along the circumference of the first rotating body (21) to support the first rotating body (21); the second lifting assembly (3) also includes a second rotating wheel (34). The second rotating wheel (34) is provided at each of the four corners of the second rotating body (31).

3. The corrugated steel plate lifting and supporting device according to claim 2, characterized in that, The distance between two adjacent second protrusions (32) is twice the distance between two adjacent first protrusions (22). The length of the longitudinal portion of the first rotating body (21) is greater than the length of the longitudinal portion of the second rotating body (31), and the length difference between the longitudinal portion of the first rotating body (21) and the longitudinal portion of the second rotating body (31) is less than the distance between two adjacent first protrusions (22).

4. The corrugated steel plate lifting and supporting device according to claim 1, characterized in that, The first lifting assembly (2) further includes a first housing (26), a first movable frame (27), a first screw lift (28), and a first longitudinal drive mechanism (29). The first rotating body (21) is rotatably disposed inside the first housing (26). The first housing (26) is slidably mounted on the first movable frame (27) in the height direction. The first screw lift (28) is mounted on the first movable frame (27) and is used to drive the first lifting assembly (2) to move up and down. The first movable frame (27) is slidably mounted on the bottom of the movable platform (1). The first longitudinal drive mechanism (29) is mounted on the bottom of the movable platform (1) and is used to drive the first movable frame (27) to move longitudinally along the tunnel on the movable platform (1).

5. The corrugated steel plate lifting and supporting device according to claim 1, characterized in that, The second rotating body (31) includes two belts spaced apart. The second lifting assembly (3) also includes a mounting frame (35), a movable frame (36), a support spring (37), and an inner top spring (38). The two ends of the mounting frame (35) are fixedly connected to the two belts respectively by shafts. The movable frame (36) is slidably mounted in the mounting frame (35). The support spring (37) is disposed between the mounting frame (35) and the movable frame (36). The second protrusion (32) is slidably disposed on both sides in the movable frame (36), and the inner top spring (38) is disposed between the second protrusion (32) and the movable frame (36).

6. A steel corrugated plate lifting and supporting device according to claim 5, characterized in that, The second lifting assembly (3) further includes a second rotating rod (39), a second housing (310), and a displacement groove (311). The second rotating rod (39) passes between the two belts. Multiple second rotating rods (39) are evenly arranged along the circumference of the belts. The second rotating rod (39) is fixedly connected to the two belts. The belts are rotatably disposed in the second housing (310). The displacement groove (311) is disposed on the inner walls of both sides of the second housing (310). The two ends of the second rotating rod (39) pass through the two belts respectively. When the belts rotate, the ends of the second rotating rod (39) will pass through the displacement groove (311) and the top and bottom of the second housing (310).

7. A corrugated steel plate lifting and supporting device according to claim 6, characterized in that, The second lifting assembly (3) also includes a locking assembly. A set of locking assemblies is provided on both sides of the second housing (310). The locking assembly includes two locking frames (312) and a locking spring (313). The locking frame (312) is a comb frame. The two locking frames (312) are arranged vertically opposite each other. One end of the locking spring (313) is connected to the second housing (310), and the other end of the locking spring (313) is connected to the locking frame (312). The elastic force of the locking spring (313) allows the locking frame (312) to be inserted into the gap between the second rotating rod (39) at the top and bottom of the belt body. When the second lifting assembly (3) is rearward connected to the first lifting assembly (2), the first lifting assembly (2) squeezes the locking frame (312) to make the locking frame (312) withdraw from the gap between the two second rotating rods (39).

8. A steel corrugated plate lifting and supporting device according to claim 7, characterized in that, The locking assembly includes a synchronization plate (314), a rotating plate (315), and an unlocking rod (316). One rotating plate (315) is provided on each side of the second housing (310). Two rotating plates (315) are rotatably installed in the middle and front end of the synchronization plate (314). The opposite ends of the two rotating plates (315) are rotatably connected to the ends of the two lock frames (312). The unlocking rod (316) is fixed at the top of the synchronization plate (314). The first lifting assembly (2) pushes the unlocking rod (316) forward, causing the synchronization plate (314) to pull the lock frame (312) out of the gap between the two second rotating rods (39).

9. A steel corrugated plate lifting and supporting device according to claim 6, characterized in that, The second lifting assembly (3) further includes a second movable frame (317), a second screw lift (318), and a second longitudinal drive mechanism (319). The second movable frame (317) is slidably mounted on the top of the movable platform (1). The second screw lift (318) is mounted on the second movable frame (317). The second housing (310) is fixedly mounted on the top of the second screw lift (318). The second longitudinal drive mechanism (319) is mounted on the top of the movable platform (1) and is used to drive the second movable frame (317) to move longitudinally along the tunnel on the movable platform (1).

10. A steel corrugated plate lifting and supporting device according to claim 9, characterized in that, The top of the mobile platform (1) is provided with a through groove (4). The second lifting assembly (3) also includes a slide rod (320). The top of the slide rod (320) is fixedly connected to both sides of the bottom of the second housing (310). The second screw lift (318) includes a second screw sleeve (3181), a second screw (3182), and a second motor (3183). The second screw sleeve (3181) is rotatably mounted on the second mobile frame (317). The second screw (3182) is threaded through the second screw sleeve (3181). The top of the second screw (3182) is fixedly connected to the bottom of the second housing (310). The bottom ends of the slide rod (320) and the second screw sleeve (3181) both penetrate the through groove (4).

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