Lifting and locking equipment

Abstract

The invention provides lifting and locking equipment, relates to the technical field of ocean engineering, and aims to solve the technical problem that position fixing and locking are difficult to effectively carry out when a lifting object is lifted to different heights. The lifting and locking equipment comprises a lifting object, a lifting device and a locking device used for locking the lifting object at a preset height. The lifting device comprises two lifting units, the two lifting units are arranged on the two sides of a lifting object correspondingly, and the lifting units are used for lifting the lifting object to a preset height; the locking device comprises at least one first locking unit and at least one second locking unit, and the first locking unit and the second locking unit are arranged on the two sides of a lifting object correspondingly. The number of the first locking units is two, and the two first locking units are arranged at the positions, close to the end, of the lifting object correspondingly. The number of the second locking units is two, and the two second locking units are arranged at the positions, close to the ends, of the lifting object correspondingly. According to the lifting locking equipment, the position stability of a lifted object during lifting is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of marine engineering, and in particular to a lifting and locking device. Background Art

[0002] In the fields of coastal engineering, marine engineering and ship engineering, waves, strong winds and ocean currents are the main loads on structures such as cross-sea bridges, oil platforms and offshore wind turbines. In order to more accurately evaluate the dynamic response characteristics of the lifting object in complex marine environmental factors, it is necessary to conduct wind and wave tests on the lifting object.

[0003] In related technologies, wind and wave tests require lifting the object to different heights to simulate different water depths. The lifting of common large equipment mainly provides vertical driving force, which makes it difficult to fix and lock the position of the lifting object. The instability of the lifting object will lead to inaccurate test performance indicators. Summary of the invention

[0004] The object of the present invention is to provide a lifting and locking device to solve the technical problem that it is difficult to effectively fix and lock the position of a lifting object when it is lifted to different heights.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] In a first aspect, the present invention provides a lifting and locking device, comprising a lifting object, a lifting device, and a locking device for locking the lifting object at a preset height;

[0007] The lifting device comprises two lifting units, which are respectively arranged on both sides of the lifting object, and the lifting units are used to lift the lifting object to the preset height;

[0008] The locking device comprises at least one first locking unit and at least one second locking unit, wherein the first locking unit and the second locking unit are respectively arranged on both sides of the lifting object.

[0009] According to at least one embodiment of the present invention, the number of the first locking units is two, and the two first locking units are respectively arranged at positions close to the ends of the lifting object.

[0010] According to at least one embodiment of the present invention, the number of the second locking units is two, and the two second locking units are respectively arranged at positions close to the ends of the lifting object.

[0011] According to at least one embodiment of the present invention, the first locking unit and the second locking unit are symmetrically arranged with respect to the lifting object.

[0012] According to at least one embodiment of the present invention, the first locking unit includes a first clamping block and a first plate cooperating with the first clamping block;

[0013] The first clamping block is disposed on a first side of the lifting object;

[0014] One end of the first plate is hinged on the ground and extends along the vertical direction.

[0015] According to at least one embodiment of the present invention, the second locking unit includes a second clamping block and a second plate cooperating with the second clamping block;

[0016] The second clamping block is disposed on a second side surface of the lifting object, the second side surface being opposite to the first side surface;

[0017] One end of the second plate is fixed on the ground and extends in a vertical direction.

[0018] According to at least one embodiment of the present invention, the first clamping block has a first groove extending along a vertical direction, and the first groove cooperates with the first plate.

[0019] According to at least one embodiment of the present invention, the second clamping block has a second groove extending along the vertical direction, and the second groove cooperates with the second plate.

[0020] According to at least one embodiment of the present invention, the first clamping block and the second clamping block are both located near the bottom of the lifting object.

[0021] According to at least one embodiment of the present invention, the lifting device includes a steel wire rope and a driving device, and the first clamping block and the second clamping block are both connected to the corresponding driving device through the corresponding steel wire rope.

[0022] Among the one or more technical solutions provided in the exemplary embodiments of the present invention, at least one of the following beneficial effects can be achieved.

[0023] The lifting and locking device provided by the exemplary embodiment of the present invention can be used for the position stability of large marine equipment at different water depths in a wind and wave impact environment. Compared with the bolt-type locking in the prior art, the lifting and locking device provided by the exemplary embodiment of the present invention does not require manual participation and is simple to install and disassemble. Specifically, the locking device includes a lifting device and a locking device. The lifting device is used to lift the lifting object to different heights, thereby simulating the marine environment of the lifting object at different water depths, and then various performance indicators of the wind and wave impact environment can be tested. The locking device includes a first locking unit and a second locking unit arranged on both sides of the lifting object. With the cooperation of the first locking unit and the second locking unit, the lifting object can be clamped from both sides after the lifting object reaches a preset height, thereby ensuring the position stability of the lifting object during the wind and wave test, and then the accuracy of various test data can be improved.

[0024] Furthermore, compared with the friction locking device in the prior art, the lifting and locking device provided by the exemplary embodiment of the present invention does not need to provide a large friction force, and is particularly suitable for large marine equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings illustrate exemplary embodiments of the present invention and together with the description serve to explain the principles of the present invention, and these drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification;

[0026] Figure 1 is an axonometric structural diagram of a lifting and locking device according to an embodiment of the present invention;

[0027] Figure 2 is an isometric structural schematic diagram of a lifting device and a locking device according to an embodiment of the present invention;

[0028] Figure 3 is a side structural schematic diagram of a lifting device and a locking device according to an embodiment of the present invention;

[0029] Figure 4 Schematic diagram of the isometric structure of a clamping block according to an embodiment of the present invention.

[0030] 1. Drawing reference numerals: 111, first plate; 111a, first rail; 112, first clamping block; 121, second plate; 121a, second rail; 122, second clamping block; 122a, ear plate; 13, electric cylinder; 141, first pipe; 142, second pipe; 20, lifting object; 30, lifting device; 31, wire rope; 321, first wheel; 322, second wheel; 41, bottom wall; 42, side wall; 421, third groove; 51, wave guide plate. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] Figure 1 2 is a schematic diagram of the axonometric structure of a lifting and locking device according to an embodiment of the present invention. Figure 1 As shown, the lifting and locking device of an exemplary embodiment of the present invention includes a water tank and a lifting object 20 arranged in the water tank, wherein the water in the water tank is used to simulate marine environments such as waves, strong winds, and currents, thereby performing wave simulation, flow field simulation, and wind field simulation, and the lifting object 20 is used to simulate cross-sea bridges, oil platforms, offshore wind power generation devices, etc. The lifting object 20 undergoes structural changes according to the actual needs of the simulation object.

[0033] In practical applications, in order to simulate different water level depths, the height of the lifting object 20 in the water tank should be continuously adjustable. Based on the lifting and locking device, the coupling properties and indicators of the lifting object 20 under the coupling of various environmental factors can be studied to avoid destructive events such as resonance.

[0034] For example, the direction of water flow in the water tank is as follows: Figure 1 As shown by the hollow arrow in the figure, the water flows from one end of the water tank to the other end of the water tank. In the direction of water flow, the lifting object 20 is located near the middle of the water tank, and the water tank includes a bottom wall 41 and two side walls 42, and the whole structure is U-shaped. The width of the lifting object 20 is less than or equal to the distance between the two side walls 42.

[0035] The lifting device 30 can lift the lifting object 20 to different water depths and lock the lifting object 20 at the preset height through the locking device, so that experiments in wave, strong wind and ocean current environments can be carried out stably; after the experiment is completed, the height of the lifting object 20 can be further raised or lowered to test various performance indicators at the next preset height.

[0036] like Figure 1 As shown, the lifting device 30 includes two lifting units, which are respectively arranged on both sides of the lifting object 20, and the lifting units are used to lift the lifting object 20 to a preset height.

[0037] Exemplarily, the power of the lifting unit can be a crane, a gantry or a drive cylinder (electric / hydraulic / pneumatic) to provide vertical driving force. The drive cylinder in the above-mentioned power device is not easy to arrange when used to lift the lifting object 20 in water and is difficult to operate for the lifting object 20 which is a large equipment. It is not easy for the crane and the gantry to fix and lock the position of the lifting object 20.

[0038] In some embodiments, the power of the lifting unit may be a winch, and a winch is respectively arranged on the ground on both sides outside the water tank. The winch is a double-drum winch, which drags two steel wire ropes 31 respectively, and the two steel wire ropes 31 pass through the side wall 42 of the water tank and are connected to one side of the lifting object 20. The double-drum winch can ensure the synchronous lifting of one side of the lifting object 20. The double-drum winches of the two lifting units both use servo drive motors, which ensures the synchronous lifting of the two winches, that is, it can ensure that both sides of the lifting object 20 are lifted synchronously, and the lifting process is relatively stable.

[0039] Figure 2 is an isometric structural diagram of a lifting device 30 and a locking device according to an embodiment of the present invention; Figure 3 2 is a side view of the structure of the lifting device 30 and the locking device according to an embodiment of the present invention. Figure 1-Figure 3 As shown, in the lifting locking device of the exemplary embodiment of the present invention, the first wheel 321 is respectively arranged on the outside and the second wheel 322 is arranged on the inside at the position where the wire rope 31 passes through the side wall 42, wherein the wire rope 31 of the second wheel 322 arranged on the inside is vertically arranged on the lifting object 20, thereby ensuring the stability of the lifting. It can be understood that the first wheel 321 and the second wheel 322 both use the side wall 42 as a fulcrum, and the wire rope 31 from the winch passes through the first wheel 321 and the second wheel 322 to enter the inside of the water tank and is connected to the side of the lifting object 20.

[0040] It should be noted that, in order to ensure the stability of the lifting equipment during the lifting process, the steel wire ropes 31 located on both sides of the water tank are symmetrically arranged with respect to the lifting object 20 .

[0041] Continue as Figure 1 In order to make the steel wire rope 31 be in a vertical state when connected to the lifting object 20, that is, in the water tank, a third groove 421 is respectively set at the position corresponding to the steel wire rope 31 on the side wall 42 of the water tank, and the third groove 421 is formed by the side wall 42 protruding to the outside of the water tank, wherein the first wheel 321 uses the outer wall surface of the groove bottom of the third groove 421 as a fulcrum, and the second wheel 322 uses the inner wall surface of the groove bottom of the third groove 421 as a fulcrum. The entire second wheel 322 and the bracket and the corresponding part of the steel wire rope 31 are all located in the third groove 421, that is, there is no protrusion on the inner wall surface of the side wall 42 of the water tank, so that the lifting object 20 can be smoothly lifted to the corresponding height without hindrance. Furthermore, the setting of the third groove 421 makes the steel wire rope 31 and the second wheel 322 etc. not affect the wind and wave test area in the water tank.

[0042] The hoisting method using the winches arranged on both sides of the water tank and the pulley and wire rope 31 arranged in the third groove 421 is more suitable for the arrangement of the lifting object 20 due to fewer components and less internal space occupied by the water tank, and will not damage the water flow environment in the water tank; the hoisting method using the winches and wire ropes 31 is applicable to both large and small lifting objects 20. At the same time, compared with cranes and trusses, it does not occupy too much height space, is more friendly to the construction of experimental plants, and has lower costs.

[0043] Considering the lifting method using the winch and the wire rope 31, it is difficult for a large lifting object 20 to remain stable under the impact of wind and waves. The locking device in the lifting locking device of the exemplary embodiment of the present invention includes at least one first locking unit and at least one second locking unit, and the first locking unit and the second locking unit are respectively arranged on both sides of the lifting object 20.

[0044] The number of the first locking units and the number of the second locking units can be determined according to actual needs. Considering the stability during the lifting process, the number of the first locking units is two, and the two first locking units are respectively arranged at positions close to the ends of the lifting object 20. The number of the second locking units is two, and the two second locking units are respectively arranged at positions close to the ends of the lifting object 20.

[0045] In some embodiments, the first locking unit and the second locking unit are symmetrically arranged with respect to the lifting object 20 .

[0046] For example, Figure 3 and Figure 4 As shown, the first locking unit includes a first clamping block 112, and the second locking unit includes a second clamping block 122. The first clamping block 112 and the second clamping block 122 have the same structure, wherein: Figure 4 Schematic diagram of the isometric structure of a clamping block according to an embodiment of the present invention.

[0047] Continue as Figure 4 As shown, in order to make the lifting object 20 fit closely with the side wall 42 of the water tank as much as possible and maintain the accuracy of the experimental data, two first clamping blocks 112 and two second clamping blocks 122 are respectively provided on both sides of the lifting object 20.

[0048] For example, two first clamping blocks 112 are disposed on the first side of the lifting object 20 and are located near the bottom of the lifting object 20; two second clamping blocks 122 are disposed on the second side of the lifting object 20 and are located near the bottom of the lifting object 20. The four clamping blocks are respectively protruded from the side of the lifting object 20, wherein at least a portion of the clamping blocks is located in the corresponding third groove 421.

[0049] For example, two ear plates 122a are arranged on the top surface of each clamping block, a pin is arranged between the two ear plates 122a, and the wire rope 31 is sleeved on the pin to form a connection with the clamping block.

[0050] Exemplarily, a first groove is provided on the side of each first clamping block 112 facing away from the lifting object 20, and the first groove extends in the vertical direction to the top and bottom surfaces of the first clamping block 112; a second groove is provided on the side of each second clamping block 122 facing away from the lifting object 20, and the second groove extends in the vertical direction to the top and bottom surfaces of the second clamping block 122.

[0051] For example, the first groove and the second groove are both wedge-shaped grooves, and the cross-section of the first groove decreases in size along the direction approaching the lifting object 20, that is, the first groove is in an expanding structure along the direction away from the lifting object 20; the second groove is also in an expanding structure in the direction away from the lifting object 20. Exemplarily, the cross-sections of the first groove and the second groove are both isosceles trapezoids and right-angled trapezoids. When the cross-sections of the first groove and the second groove are both isosceles trapezoids, the lifting process of the lifting object 20 is smoother and the positioning is more accurate.

[0052] like Figure 2 and Figure 3 As shown, the first locking unit also includes a first plate 111 that cooperates with the first clamping block 112, one end of the first plate 111 is hinged on the ground and extends along the vertical direction; the second locking unit also includes a second plate 121 that cooperates with the second clamping block 122, one end of the second plate 121 is hinged on the ground and extends along the vertical direction.

[0053] In actual application, one end of the first plate 111 is hinged on the bottom of the water tank and is located in the corresponding third groove 421; one end of the second plate 121 is fixed on the bottom of the water tank and is located in the corresponding third groove 421. The first plate 111 and the second plate 121 extend along the height direction of the third groove 421 to a position near the top of the water tank. A linear motion structure, such as a hydraulic cylinder, a cylinder or an electric cylinder 13, is also provided near the top of the third groove 421 where the first plate 111 is located. The servo electric cylinder 13 is used as an example for explanation below. The telescopic end of the servo electric cylinder 13 is hinged to the top of the first plate 111. The telescopic end of the linear motion structure moves in a direction perpendicular to the side wall 42 of the water tank.

[0054] When the lifting object 20 reaches the preset height position driven by the lifting device 30, the telescopic end of the servo electric cylinder 13 extends, pushing the top of the first plate 111 to move toward the inside of the water tank, and the middle part of the first plate 111 is gradually pressed in the first groove of the first clamping block 112, and the second groove of the second clamping block 122 is also pressed in the middle part of the second plate 121. Based on this, the first plate 111 is embedded in the first groove, and the second plate 121 is embedded in the second groove, so that the corresponding first plate 111 and the second plate 121 cooperate to clamp the lifting object 20, maintain its stability and can bear lateral loads, such as Figure 1 The force shown is from the side impact of wind and waves.

[0055] When the lifting object 20 needs to change the water depth in the water tank, the telescopic end of the servo electric cylinder 13 is shortened, driving the top of the first plate 111 to move outward from the water tank, the pressing force of the first plate 111 in the first groove is reduced, and the pressing force of the second plate 121 in the second groove is also reduced, and the first plate 111 and the second plate 121 lose the clamping of the lifting object 20. At this time, the lifting device 30 can drive the lifting object 20 to rise and fall to the corresponding water depth.

[0056] Exemplarily, the first plate 111 and the second plate 121 are plates of uniform thickness. Optionally, the first plate 111 also has a first rail 111a that cooperates with the first groove, and the second plate 121 has a second rail 121a that cooperates with the second groove, wherein the shape of the first rail 111a matches the first groove, and its cross-section is an isosceles trapezoid; the shape of the second rail 121a matches the second groove, and its cross-section is also an isosceles trapezoid.

[0057] In some embodiments, when the telescopic end of the servo electric cylinder 13 is fully retracted, the first rail 111a of the first plate 111 is still within the first groove of the first clamping block 112, that is, the first plate 111 and the first groove are not completely disengaged; the second rail 121a of the second plate 121 is still within the second groove of the second clamping block 122, that is, the second plate 121 and the second groove are not completely disengaged. Therefore, when the lifting object 20 needs to change the water depth in the water tank, the lifting object 20 will still move along the first plate 111 and the second plate 121 under the drive of the lifting device 30. At this time, the first plate 111 and the second plate 121 are used to guide the lifting object 20, avoiding the lifting object 20 from vigorous shaking due to the flexibility of the wire rope 31, preventing the heavy-load lifting object 20 from damaging the water tank and related equipment, and improving the safety of the experiment.

[0058] Considering that the first plate 111 is a movable plate and a long strip plate, for example, its length can be 3m to 5m, or longer, and in order to install the second wheel 322 and the wire rope 31 and other auxiliary components, the width of the third groove 421 of the water tank is much greater than the thickness of the first plate 111, therefore, the third groove 421 of the water tank cannot limit the movable first plate 111, and the first plate 111 may be misaligned during the movement due to its own rigidity. Therefore, a guide device is also provided in the third groove 421 where the first plate 111 is located, and the guide device includes a first guide unit provided on one groove wall of the third groove 421 and a second guide unit provided on another groove wall, and an activity space for the first plate 111 to move is formed between the first guide unit and the second guide unit, so as to maintain the movement accuracy of the first plate 111 and avoid deviation.

[0059] Exemplarily, the first card slot, the second card slot and the third card slot are respectively arranged on the wall surfaces opposite to the third groove 421, and the first card slot, the second card slot and the third card slot are arranged in a direction away from the lifting object 20, and all extend in a vertical direction, the first card slot extends downward from the top of the third groove 421 to 2 / 3 of the height of the third groove 421; the second card slot extends downward from the top of the third groove 421 to 1 / 3 of the height of the third groove 421, and the third card slot extends downward from the top of the third groove 421 to a position near the bottom of the third groove 421.

[0060] The locking device also includes a fixed sealing plate, a first movable sealing plate and a second movable sealing plate, wherein the two sides of the fixed sealing plate are fixedly arranged in the corresponding first card slot; the two sides of the first movable sealing plate are slidably arranged in the corresponding second card slot; and the two sides of the second movable sealing plate are slidably arranged in the corresponding third card slot.

[0061] In another optional embodiment, sliders are provided on both sides of the first movable sealing plate and the second movable sealing plate, and the first movable sealing plate and the second movable sealing plate are slidably disposed in the second slot and the third slot respectively through the sliders.

[0062] For example, the bottom end of the first movable sealing plate is further provided with a first hook portion facing the second movable sealing plate; the top end of the second movable sealing plate is further provided with a second hook portion facing the first movable sealing plate. The first movable sealing plate is attached to the fixed sealing plate, and the bottom ends of the first movable sealing plate and the second movable sealing plate can be arranged on the corresponding first clamping block 112 or the second clamping block 122.

[0063] When the lifting object 20 rises, it pushes the first movable sealing plate and the second movable sealing plate to move upward; when the lifting object 20 descends, the first movable sealing plate and the second movable sealing plate descend under the action of gravity. When the first movable sealing plate descends to the lowest position, the second movable sealing plate continues to descend until the second hook and the first hook overlap together. Based on this, during the entire lifting or descending process of the lifting object 20, the opening of the third groove 421 located above the bottom of the lifting object 20 can be sealed by the fixed sealing plate, the first movable sealing plate, and the second movable sealing plate, so that the inner wall surface of the side wall 42 of the water tank forms a roughly complete wall surface, thereby preventing the damage of the wave shape and improving the accuracy of the experimental data.

[0064] Furthermore, the first guide unit and the second guide unit are arranged on the two sides of the first plate 111, which ensures that the rotation direction of the first plate 111 is always perpendicular to the vertical direction. When the lifting object 20 is locked by the locking device, the cooperation between the first guide unit and the second guide unit and the first plate 111, and the second plate 121 is fixedly arranged at the bottom of the water tank, can bear the impact force of wind and waves from the side (such as Figure 1 As a result, the lifting object 20 of the exemplary embodiment of the present invention does not tilt or shake under the impact of wind and waves, and remains stable to ensure the accuracy of the test data.

[0065] For example, Figure 2 and Figure 3 As shown, the first guide unit is located on the outer side of the first plate 111 (the side where the two first plates 111 are facing away from each other), and the second guide unit is located on the inner side of the first plate 111 .

[0066] For example, the first guide unit is composed of a plurality of first tubes 141 disposed on the wall of the third groove 421 , wherein the axial direction of the first tube 141 is perpendicular to the first plate 111 , and the plurality of first tubes 141 are evenly disposed along the height direction of the wall of the third groove 421 .

[0067] The second guide unit is composed of a plurality of second tubes 142 arranged on another groove wall of the third groove 421 , wherein the axial direction of the second tubes 142 is parallel to the first plate 111 , and the plurality of second tubes 142 are evenly arranged along the height direction of the groove wall of the third groove 421 .

[0068] In some embodiments, the first tubes 141 and the second tubes 142 correspond to each other one by one, and the corresponding first tubes 141 and the second tubes 142 are located at the same position in the height direction of the third groove 421 .

[0069] It should be noted that the axial direction of the first tube 141 is set to be perpendicular to the first plate 111. According to the movable space required by the first plate 111, the axial length of the first tube 141 can be conveniently cut to maintain a certain distance with the second tube 142. When the axial directions of the first tube 141 and the second tube 142 are parallel to the first plate 111, the distance between the first tube 141 and the second tube 142 may be too large to cause the first plate 111 to shake in the incoming flow direction, and fail to lock the lifting object 20, thereby causing inaccurate experimental data.

[0070] In some embodiments, Figure 1 As shown, the lifting and locking device of the exemplary embodiment of the present invention further comprises a wave guide plate 51 hinged at one end of the incoming flow of the lifting object 20, and the hinge position of the wave guide plate 51 and the lifting object 20 is located at the top position of the lifting object 20. The width of the wave guide plate 51 is the same as the width of the lifting object 20, and the length thereof is substantially the same as the length of the lifting object 20.

[0071] The bottom wall 41 of the water trough is provided with a recessed portion on the inflow side of the lifting object 20. When the lifting object 20 is located at the lowest end of the water trough, the top surface of the wave guide plate 51 is on the same horizontal plane as the top surface of the lifting object 20, and the bottom surface of the wave guide plate 51 is attached to the recessed portion of the bottom wall 41 of the water trough.

[0072] It can be understood that the free end of the wave guide plate 51 can slide on the recessed portion. As the lifting object 20 rises, an angle is formed between the wave guide plate 51 and the lifting object 20, and the free end of the wave guide plate 51 gradually moves toward the lifting object 20. When wind and waves impact the side from the incoming flow direction, the wind and waves transition to the top surface of the lifting object 20 through the slope of the wave guide plate 51, which can prevent the wind and waves from directly hitting the side of the lifting object 20 and causing wave damage.

[0073] In other embodiments, the lifting and locking device of the exemplary embodiment of the present invention further includes a transition plate hinged to the bottom wall 41 of the water tank, the width of the transition plate is consistent with the width of the wave guide plate 51, and the length is determined according to actual conditions.

[0074] One end of the transition plate is hinged at a position where the bottom wall 41 of the water tank is adjacent to the recessed portion, and the free end of the transition plate is always overlapped on the top surface of the wave guide plate 51. When the wave guide plate 51 is tilted and displaced as the lifting object 20 is lifted, the transition plate overlapped on the wave guide plate 51 can form a smooth transition between the bottom wall 41 of the water tank and the free end of the wave guide plate 51, thereby minimizing the damage to the wave shape and ensuring the consistency and validity of the experimental data.

[0075] It should be understood by those skilled in the art that the above embodiments are only for the purpose of clearly illustrating the present invention, and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications may be made based on the above disclosure, and these changes or modifications are still within the scope of the present invention.

Claims

1. A lifting and locking device, characterized in that: It comprises a lifting object, a lifting device and a locking device for locking the lifting object at a preset height; The lifting device comprises two lifting units, which are respectively arranged on both sides of the lifting object, and the lifting units are used to lift the lifting object to the preset height; The locking device comprises at least one first locking unit and at least one second locking unit, wherein the first locking unit and the second locking unit are respectively arranged on both sides of the lifting object.

2. The locking device according to claim 1, characterized in that: The number of the first locking units is two, and the two first locking units are respectively arranged at positions close to the ends of the lifting object.

3. The locking device according to claim 2, characterized in that: The number of the second locking units is two, and the two second locking units are respectively arranged at positions close to the ends of the lifting object.

4. The locking device according to claim 3, characterized in that: The first locking unit and the second locking unit are symmetrically arranged with respect to the lifting object.

5. The locking device according to claim 4, characterized in that The first locking unit includes a first clamping block and a first plate matched with the first clamping block; The first clamping block is disposed on a first side of the lifting object; One end of the first plate is hinged on the ground and extends along the vertical direction.

6. The locking device according to claim 5, characterized in that The second locking unit includes a second clamping block and a second plate matched with the second clamping block; The second clamping block is disposed on a second side surface of the lifting object, the second side surface being opposite to the first side surface; One end of the second plate is fixed on the ground and extends in a vertical direction.

7. The locking device according to claim 6, characterized in that The first clamping block has a first groove extending along a vertical direction, and the first groove is matched with the first plate.

8. The locking device according to claim 7, characterized in that The second clamping block has a second groove extending along the vertical direction, and the second groove is matched with the second plate.

9. The locking device according to claim 6, characterized in that: The first clamping block and the second clamping block are both located near the bottom of the lifting object.

10. The locking device according to claim 6, characterized in that The lifting device includes a steel wire rope and a driving device, and the first clamping block and the second clamping block are both connected to the corresponding driving device through the corresponding steel wire rope.

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