CN118561164A - Cover plate assembly lifting device - Google Patents

Abstract

The application provides a cover plate assembly lifting device, and relates to the technical field of lifting equipment. The cover plate component hoisting device comprises a frame body, pulleys, a winch and a connecting rope; the pulley is arranged at the top of the frame body in a sliding way; the winch is fixed on the frame body, one end of the connecting rope is wound on the winch, and the other end of the connecting rope is wound on the pulley and is connected with the cover plate component; the winch is driven to rotate in a clockwise direction or a counterclockwise direction to adjust the connecting rope to lower or raise the cover plate assembly. The cover plate assembly lifting device obtained through the design is simple and convenient to operate, the length of the connecting rope can be controlled through the winch, and the height position and the balance degree of the cover plate assembly connected through the connecting rope can be further controlled, so that lifting and overturning of the cover plate assembly are realized, the lifting efficiency is improved, and the lifting time is shortened.

Description

Cover plate assembly lifting device

Technical Field

The application relates to the technical field of hoisting equipment, in particular to a hoisting device for a cover plate assembly.

Background

The machine equipment consists of an equipment cavity and a cover plate component assembled above the equipment cavity. In the assembly process of the existing cover plate assembly, a worker is required to manually turn over the cover plate, and then screws are fixed at the bottom of the cover plate assembly so as to complete the assembly of the cover plate assembly; and then, lifting the assembled cover plate assembly onto the equipment cavity by workers to complete the whole assembly.

However, because the cover plate assembly is heavy, the manual overturning and lifting processes of the cover plate assembly by workers are difficult, personnel injury is easily caused, and potential safety hazards exist; if the cover plate assembly is hoisted by adopting a crane, the hoisting difficulty is increased and the hoisting time is prolonged easily due to the influence of the station of the base station.

Disclosure of Invention

The application provides a cover plate assembly hoisting device, which can control the length of a connecting rope through a winch, and further control the height position and levelness of the cover plate assembly connected by the connecting rope, so as to realize hoisting and overturning of the cover plate assembly, improve hoisting efficiency and shorten hoisting time.

Embodiments of the present application are implemented as follows:

In one aspect of the embodiment of the application, a cover plate assembly lifting device is provided, which comprises a frame body, pulleys, a winch and a connecting rope; the pulley is arranged at the top of the frame body in a sliding way; the winch is fixed on the frame body, one end of the connecting rope is wound on the winch, and the other end of the connecting rope is wound on the pulley and is connected with the cover plate component; the winch is driven to rotate in a clockwise direction or a counterclockwise direction to adjust the connecting rope to lower or raise the cover plate assembly.

Optionally, the frame body comprises a plurality of support frames and a plurality of connecting frames which are parallel to each other, and the connecting frames are arranged between any two adjacent support frames and are vertically connected with the support frames; a plurality of connecting frames are enclosed to form a rectangular frame and are fixed at the top end of the supporting frame; one surface of the connecting frame facing the winch is provided with a sliding rail, and the pulley is arranged in the sliding rail in a sliding way.

Optionally, the pulleys comprise four pulleys which are respectively connected with the connecting frame in a sliding way, so that one pulley is arranged in each sliding rail; the winch comprises two connecting ropes, one end of each connecting rope is wound on the winch, the other end of each connecting rope extends to form two sub connecting ropes, the two sub connecting ropes are sequentially wound on two adjacent pulleys and are respectively connected with the same one cover plate assembly, and the winch is driven to rotate clockwise or anticlockwise so as to synchronously adjust the two sub connecting ropes to enable one side of the cover plate assembly to descend or ascend.

Optionally, the two sub-connecting ropes are respectively a first sub-connecting rope and a second sub-connecting rope, the length of the first sub-connecting rope is larger than that of the second sub-connecting rope, the first sub-connecting rope is wound on a pulley far away from the winch, the second sub-connecting rope is wound on a pulley close to the winch, and when the first sub-connecting rope and the second sub-connecting rope are respectively connected with the same side of the cover plate assembly, the connecting point of the cover plate assembly and the first sub-connecting rope and the connecting point of the cover plate assembly and the second sub-connecting rope are located at the same horizontal height.

Optionally, the two winches are respectively and oppositely arranged at the same side of the frame body.

Optionally, the pulleys comprise four pulleys which are respectively connected with the connecting frame in a sliding way, so that one pulley is arranged in each sliding rail; the winch includes four, and the rope of connecting includes four, all winds on every winch and is equipped with one and connects the rope, and every one end that the rope was kept away from the winch is around locating in arbitrary pulley and can be connected with the arbitrary angle of apron subassembly, and drive winch rotates along clockwise or anticlockwise to adjust the rope of connecting makes the angle of apron subassembly descend or rise.

Optionally, one end of the connecting rope, which is away from the winch, is further provided with a hanging ring, and the hanging ring is used for being connected with the connecting part of the cover plate assembly.

Optionally, the frame body further comprises a fixing frame, wherein the fixing frame is vertically arranged between two adjacent supporting frames and is positioned at one end of the supporting frames, which is away from the connecting frame.

Optionally, the frame body further comprises a reinforcing part, wherein the reinforcing part is arranged at the joint of any support frame and the fixing frame, so that one side of the reinforcing part is fixedly connected with the support frame, and the other side of the reinforcing part is fixedly connected with the fixing frame; and/or the reinforcing part is arranged at the joint of any support frame and the connecting frame, so that one side of the reinforcing part is fixedly connected with the support frame, and the other side of the reinforcing part is fixedly connected with the connecting frame.

Optionally, the cover plate assembly lifting device further comprises a universal wheel, and the universal wheel is arranged on one side, away from the pulley, of the frame body.

The beneficial effects of the embodiment of the application at least comprise:

The application provides a cover plate component hoisting device, which comprises a frame body, pulleys, a winch and a connecting rope; the pulley is arranged at the top of the frame body in a sliding way; the winch is fixed on the frame body, one end of the connecting rope is wound on the winch, and the other end of the connecting rope is wound on the pulley and is connected with the cover plate component; the winch is driven to rotate clockwise or anticlockwise so as to adjust the connecting rope to enable the cover plate assembly to descend or ascend; the cover plate assembly lifting device can be matched with cover plate assemblies with various sizes through the pulleys arranged in a sliding manner; the winch and the pulley are matched together to adjust the length of the connecting rope, so that the height position of the cover plate assembly is adjusted, and meanwhile, the balance degree of the cover plate assembly can be standardized, so that the effect of overturning the cover plate assembly is achieved. The cover plate assembly lifting device obtained through the design is simple and convenient to operate, the length of the connecting rope can be controlled through the winch, and the height position and the balance degree of the cover plate assembly connected through the connecting rope can be further controlled, so that lifting and overturning of the cover plate assembly are realized, the lifting efficiency is improved, and the lifting time is shortened.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a lifting device for a cover plate assembly according to an embodiment of the present application;

FIG. 2 is a second schematic structural diagram of a lifting device for a cover assembly according to an embodiment of the present application;

FIG. 3 is an enlarged detail view at A;

fig. 4 is a third schematic structural diagram of a lifting device for a cover assembly according to an embodiment of the present application.

Icon: 100-a cover plate assembly hoisting device; 110-a frame body; 111-supporting frames; 112-a connecting frame; 113-a fixing frame; 114-reinforcement; 120-pulleys; 130-winch; 140-connecting ropes; 141-a first sub-connecting rope; 142-a second sub-connecting string; 143-hanging rings; 150-universal wheels.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some, but not all, embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

In the description of the present application, it should be understood that the terms "orientation" or "positional relationship" are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection or signal connection; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In one aspect of the embodiment of the present application, there is provided a cover assembly lifting device 100 including a frame 110, a pulley 120, a winch 130, and a connection rope 140; the pulley 120 is slidably disposed at the top of the frame 110; the winch 130 is fixed on the frame 110, one end of the connecting rope 140 is wound on the winch 130, and the other end is wound on the pulley 120 and is connected with the cover plate component; the winch 130 is driven to rotate in a clockwise direction or a counterclockwise direction to adjust the connection rope 140 to lower or raise the deck assembly.

Specifically, referring to fig. 1, the present application provides a cover assembly lifting device 100. The cover plate assembly lifting device 100 comprises a frame body 110, and the frame body 110 can play a supporting role for the whole cover plate assembly lifting device 100. The frame 110 is a rectangular frame structure, and the top of the frame is provided with a pulley 120 in a sliding manner; the cover plate assembly lifting device 100 further comprises a winch 130 and a connecting rope 140, wherein the winch 130 is fixedly connected to the frame 110, one end of the connecting rope 140 is wound on the winch 130, the other end of the connecting rope is wound in the pulley 120, and the connecting rope extends out of the pulley 120 so as to be connected with the cover plate assembly.

The winch 130 is provided with a handle, and a worker can raise or lower the deck assembly by rotating the handle in a counterclockwise direction or a clockwise direction to adjust the connection rope 140.

It should be noted that, in the first embodiment of the present application, since the cover plate assembly is heavy, the connecting rope 140 needs to have a certain strength, and preferably, the connecting rope 140 is a steel rope.

Second, as shown in fig. 1, the cover plate assembly lifting device 100 further includes a universal wheel 150, where the universal wheel 150 is disposed on a side of the frame 110 away from the pulley 120, and the cover plate assembly lifting device 100 is more flexible in use through the arrangement of the universal wheel 150. The staff can remove apron subassembly hoist device 100 through universal wheel 150 to the position of apron subassembly, wait to adjust connecting rope 140 through capstan winch 130 in order to make apron subassembly hoist to suitable position after, rethread universal wheel 150 removes apron subassembly hoist device 100 to the equipment cavity to adjust the length of connecting rope 140 through capstan winch 130 again so that the apron subassembly is placed on the equipment cavity, in order to accomplish the whole assembly of apron subassembly and equipment cavity.

Third, as shown in fig. 4, an end of the connection rope 140 facing away from the winch 130 is further provided with a hanging ring 143, and the hanging ring 143 is used for being connected with the connection part of the cover plate assembly. The lifting hook can be arranged at the corresponding position of the cover plate assembly, and the lifting ring 143 is arranged in the lifting hook through clamping so that the connecting rope 140 is fixedly connected with the cover plate assembly, so that the lifting efficiency of the lifting device 100 of the cover plate assembly is further improved.

The application provides a cover plate component hoisting device 100, which comprises a frame 110, a pulley 120, a winch 130 and a connecting rope 140; the pulley 120 is slidably disposed at the top of the frame 110; the winch 130 is fixed on the frame 110, one end of the connecting rope 140 is wound on the winch 130, and the other end is wound on the pulley 120 and is connected with the cover plate component; the winch 130 is driven to rotate in a clockwise direction or a counterclockwise direction to adjust the connection rope 140 to lower or raise the cover assembly; the cover plate assembly lifting device 100 can be matched with cover plate assemblies with various sizes through the pulleys 120 which are arranged in a sliding way; the winch 130 and the pulley 120 are matched together to adjust the length of the connecting rope 140, so that the height position of the cover plate assembly is adjusted, and meanwhile, the balance degree of the cover plate assembly can be standardized, so that the effect of overturning the cover plate assembly is achieved. The cover plate assembly lifting device 100 is simple and convenient to operate, the connecting rope 140 can be adjusted through the winch 130, and the height position and the balance degree of the cover plate assembly connected by the connecting rope 140 are further controlled, so that lifting and overturning of the cover plate assembly are realized, the lifting efficiency is improved, and the lifting time is shortened.

Further, the frame 110 includes a plurality of parallel supporting frames 111 and a plurality of connecting frames 112, and the connecting frames 112 are disposed between any two adjacent supporting frames 111 and are vertically connected with the supporting frames 111; a plurality of connecting frames 112 are enclosed to form a rectangular frame and are fixed at the top end of the supporting frame 111; the connecting frame 112 is provided with a slide rail towards one side of the winch 130, and the pulley 120 is slidably disposed in the slide rail.

Specifically, as shown in fig. 2, the frame 110 has a rectangular frame structure, which includes a plurality of support frames 111, and the plurality of support frames 111 are vertically arranged and parallel to each other; the device further comprises a plurality of connecting frames 112, wherein a connecting frame 112 is arranged between any two supporting frames 111, and the connecting frames 112 are perpendicular to the two adjacent supporting frames 111 and are arranged at the top of the supporting frames 111. A plurality of connecting frames 112 are enclosed to form a rectangular frame, a slide rail is arranged on one surface of the connecting frame 112 facing the winch 130, and a pulley 120 can be arranged in the slide rail in a sliding manner; the winch 130 is fixedly connected to the supporting frame 111.

Through the arrangement of the connecting frame 112 and the supporting frame 111, supporting force is provided for the cover plate assembly lifting device 100; meanwhile, the sliding rail of the connecting frame 112 enables the pulley 120 to slide flexibly, and the connecting rope 140 can be driven to flexibly connect cover plate assemblies with different sizes, so that the flexibility and adaptability of the cover plate assembly lifting device 100 are improved.

Preferably, the frame 110 further includes a fixing frame 113, and the fixing frame 113 is vertically disposed between two adjacent supporting frames 111 and is located at one end of the supporting frame 111 away from the connecting frame 112.

Specifically, as shown in fig. 2, the frame 110 further includes a fixing frame 113, where the fixing frame 113 is disposed between two adjacent supporting frames 111 and is fixed perpendicular to the two supporting frames 111. The fixed frame 113 is arranged at one end of the supporting frame 111 deviating from the connecting frame 112, and the number of the fixed frames 113 is not more than three, and through the arrangement, the fixed frames 113 are not connected between at least two adjacent supporting frames 111, so that the cover plate assembly lifting device 100 can be conveniently slid above the cover plate assembly to be lifted, and the efficiency and the reliability of the lifting process are improved. By the arrangement of the fixing member, the stability and reliability of the frame 110 can be further improved.

Preferably, as shown in fig. 2 and 3, the frame 110 further includes a reinforcing portion 114, where the reinforcing portion 114 is disposed at a connection position between any support 111 and the fixing frame 113, so that one side of the reinforcing portion 114 is fixedly connected with the support 111, and the other side is fixedly connected with the fixing frame 113; and/or, the reinforcement part 114 is disposed at the connection position between any support 111 and the connection frame 112, so that one side of the reinforcement part 114 is fixedly connected with the support 111, and the other side is fixedly connected with the connection frame 112.

Specifically, the frame 110 further includes a reinforcing portion 114, where the reinforcing portion 114 is disposed at a connection between any support 111 and an adjacent fixing frame 113, and one side of the reinforcing portion 114 is fixedly connected to the support 111, and the other side is fixedly connected to the fixing frame 113; in addition, the reinforcing portion 114 may be disposed at a connection portion between any support 111 and an adjacent connection frame 112, and one side of the reinforcing portion 114 is fixedly connected to the support 111, and the other side is fixedly connected to the connection frame 112.

In a preferred embodiment of the present application, the reinforcement part 114 is provided in a right triangle structure, which has excellent stability, and can be tightly connected to the connection between the support 111 and the fixing frame 113 and/or the connection between the support 111 and the connection frame 112. Of course, the reinforcement portion 114 may be provided in other shapes, such as a rectangular shape. The present application can further improve the stability and reliability of the frame 110 by providing the reinforcement portion 114.

In one embodiment of the present application, the pulleys 120 comprise four pulleys 120, and the pulleys 120 are slidably connected to the connecting frame 112 respectively, so that one pulley 120 is disposed in each sliding rail; the winch 130 includes two connecting ropes 140, one end of each connecting rope 140 is wound on the winch 130, the other end of each connecting rope 140 extends to form two sub connecting ropes 140, the two sub connecting ropes 140 are sequentially wound on two adjacent pulleys 120 and are respectively connected with the same one of the cover plate assemblies, and the winch 130 is driven to rotate clockwise or anticlockwise so as to synchronously adjust the two sub connecting ropes 140 to enable one side of the cover plate assemblies to descend or ascend.

Specifically, as shown in fig. 1, the cover plate assembly lifting device 100 provided by the application may include four pulleys 120, where the four pulleys 120 are respectively corresponding to the four connecting frames 112 and slidably disposed, and each pulley 120 can move left and right along the connecting frame 112 to adjust the position.

The number of the winches 130 is two, the number of the connecting ropes 140 is also two, and each winch 130 is wound with one connecting rope 140; one end of the connection rope 140 is wound on the winch 130, the other end of the connection rope extends to form two sub-connection ropes 140, and the two sub-connection ropes 140 are wound on the two adjacent pulleys 120 and connected to any one side of the cover plate assembly.

By rotating the winch 130 clockwise or counterclockwise, a worker can simultaneously drive the cover assembly to descend or ascend around the two sub-connection ropes 140 on the winch 130, so as to further control the levelness of the cover assembly.

When the worker needs to turn over the cover plate assembly, the two winches 130 are only needed to control the heights of the two opposite sides of the cover plate assembly respectively, so that the heights of the two sides of the cover plate assembly are different, and the effect of turning over the cover plate assembly is achieved.

Further, the two sub-connection ropes 140 are a first sub-connection rope 141 and a second sub-connection rope 142, the length of the first sub-connection rope 141 is greater than that of the second sub-connection rope 142, the first sub-connection rope 141 is wound on the pulley 120 far away from the winch 130, and the second sub-connection rope 142 is wound on the pulley 120 near the winch 130, so that when the first sub-connection rope 141 and the second sub-connection rope 142 are connected with the same side of the cover plate assembly, the connection point of the cover plate assembly and the first sub-connection rope 141, and the connection point of the cover plate assembly and the second sub-connection rope 142 are located at the same level.

Specifically, the two sub-connecting ropes 140 are a first sub-connecting rope 141 and a second sub-connecting rope 142, the length of the first sub-connecting rope 141 is greater than that of the second sub-connecting rope 142, the first sub-connecting rope 141 is wound on the pulley 120 far away from the winch 130, and the second sub-connecting rope 142 is wound in the pulley 120 near the winch 130, so that when the first sub-connecting rope 141 and the second sub-connecting rope 142 are connected with the same side of the cover plate assembly, the connection point of the cover plate assembly and the first sub-connecting rope 141 and the connection point of the cover plate assembly and the second connecting rope 140 are all located at the same horizontal height.

Through such setting mode, can guarantee that the cover plate assembly is the same with the height of one side all the time, this cover plate assembly of upset of being more convenient for has improved the efficiency and the stability of hoist and mount process.

Further, the two winches 130 are respectively disposed at the same side of the frame 110.

Specifically, the two winches 130 are disposed on the same side of the frame 110 and are disposed on the two supporting frames 111. Through the setting that is equipped with for this apron subassembly hoist device 100's overall operation is simpler and more convenient, and single can accomplish the operation, can be convenient for more through the both sides of the capstan winch 130 control apron subassembly of both sides high, in order to realize upset and hoist and mount.

In one embodiment of the present application, the pulleys 120 comprise four pulleys 120, and the pulleys 120 are slidably connected to the connecting frame 112, such that one pulley 120 is disposed in each sliding rail; the winch 130 includes four connection ropes 140, each winch 130 is provided with one connection rope 140 in a winding manner, one end, away from the winch 130, of each connection rope 140 is arranged in any pulley 120 in a winding manner and can be connected with any corner of the cover plate assembly, and the winch 130 is driven to rotate clockwise or anticlockwise so as to adjust the connection rope 140 to enable the corner of the cover plate assembly to descend or ascend.

Specifically, the cover plate assembly lifting device 100 provided by the application may include four pulleys 120, where the four pulleys 120 are respectively corresponding to the four connecting frames 112 and slidably disposed, and each pulley 120 can move left and right along the connecting frame 112 to adjust the position.

The winch 130 comprises four connecting ropes 140, and each winch 130 is wound with one connecting rope 140; one end of each connecting rope 140 is wound on the winch 130, and the other end is wound on any one of the pulleys 120, and is connected to one corner of the cover assembly.

By rotating each winch 130 clockwise or counterclockwise, a worker can independently control the connecting rope 140 wound on the winch 130 to drive the cover plate assembly to descend or ascend, so as to further control the levelness of the cover plate assembly.

When the worker needs to turn over the cover plate assembly, the levelness of each angle of the cover plate assembly is controlled independently only through the corresponding winch 130 of the required turning angle, so that the height of each angle of the cover plate assembly is different, and the effect of turning over the cover plate assembly is achieved.

Through setting up four winches 130 and four connecting ropes 140, the height of four angles of apron subassembly can be controlled alone to the levelness of apron subassembly is adjusted more accurately, the reliability of upset process has been improved.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and variations will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. The cover plate assembly lifting device is characterized by comprising a frame body (110), pulleys (120), a winch (130) and a connecting rope (140); the pulley (120) is arranged at the top of the frame body (110) in a sliding manner; the winch (130) is fixed on the frame body (110), one end of the connecting rope (140) is wound on the winch (130), and the other end of the connecting rope is wound on the pulley (120) and connected with the cover plate assembly; the winch (130) is driven to rotate in a clockwise direction or a counterclockwise direction to adjust the connection rope (140) to lower or raise the cover plate assembly.

2. The cover plate assembly lifting device according to claim 1, wherein the frame body (110) comprises a plurality of mutually parallel supporting frames (111) and a plurality of connecting frames (112), and the connecting frames (112) are arranged between any two adjacent supporting frames (111) and are vertically connected with the supporting frames (111); a plurality of connecting frames (112) are enclosed to form a rectangular frame and are fixed at the top end of the supporting frame (111); the one side of link (112) towards capstan winch (130) is provided with the slide rail, pulley (120) slip set up in the slide rail.

3. The cover plate assembly lifting device according to claim 2, wherein the pulleys (120) comprise four pulleys, and the pulleys (120) are respectively and slidably connected with the connecting frame (112), so that one pulley (120) is arranged in each sliding rail; the winch (130) comprises two, the connecting ropes (140) comprise two, one ends of the connecting ropes (140) are wound on the winch (130), two sub-connecting ropes (140) extend from the other ends of the connecting ropes, the two sub-connecting ropes (140) are sequentially wound on two adjacent pulleys (120) and are respectively connected with the same one cover plate assembly, the winch (130) is driven to rotate in the clockwise direction or the anticlockwise direction, and one sides of the cover plate assemblies are lowered or raised by synchronously adjusting the two sub-connecting ropes (140).

4. A hoisting device for a cover plate assembly according to claim 3, wherein the two sub-connecting ropes (140) are a first sub-connecting rope (141) and a second sub-connecting rope (142) respectively, the length of the first sub-connecting rope (141) is greater than that of the second sub-connecting rope (142), the first sub-connecting rope (141) is wound around a pulley (120) far away from the winch (130), and the second sub-connecting rope (142) is wound around the pulley (120) near the winch (130), so that when the first sub-connecting rope (141) and the second sub-connecting rope (142) are respectively connected with the same side of the cover plate assembly, the connection point of the cover plate assembly and the first sub-connecting rope (141) and the connection point of the cover plate assembly and the second sub-connecting rope (142) are located at the same level.

5. A lifting device for a cover plate assembly according to claim 3, wherein two winches (130) are respectively arranged on the same side of the frame body (110) in an opposite manner.

6. The cover plate assembly lifting device according to claim 2, wherein the pulleys (120) comprise four pulleys, and the pulleys (120) are respectively and slidably connected with the connecting frame (112), so that one pulley (120) is arranged in each sliding rail; the winch (130) comprises four connecting ropes (140), each winch (130) is provided with one connecting rope (140) in a winding mode, one end, away from the winch (130), of each connecting rope (140) is arranged in any pulley (120) in a winding mode and can be connected with any corner of the cover plate assembly, the winch (130) is driven to rotate in the clockwise direction or the anticlockwise direction, and one corner of the cover plate assembly is enabled to descend or ascend through the connecting ropes (140) in a winding mode.

7. The lifting device for the cover plate assembly according to claim 1,3 or 6, wherein one end of the connecting rope (140) facing away from the winch (130) is further provided with a lifting ring (143), and the lifting ring (143) is used for being connected with the connecting part of the cover plate assembly.

8. The cover plate assembly lifting device according to claim 2, wherein the frame body (110) further comprises a fixing frame (113), and the fixing frame (113) is vertically arranged between two adjacent supporting frames (111) and is positioned at one end of the supporting frames (111) deviating from the connecting frame (112).

9. The cover plate assembly lifting device according to claim 8, wherein the frame body (110) further comprises a reinforcing part (114), and the reinforcing part (114) is arranged at the joint of any support frame (111) and the fixing frame (113), so that one side of the reinforcing part (114) is fixedly connected with the support frame (111), and the other side is fixedly connected with the fixing frame (113); and/or the reinforcing part (114) is arranged at the joint of any supporting frame (111) and the connecting frame (112), so that one side of the reinforcing part (114) is fixedly connected with the supporting frame (111), and the other side is fixedly connected with the connecting frame (112).

10. The cover assembly lifting device of claim 1, wherein the cover assembly lifting device (100) further comprises a universal wheel (150), the universal wheel (150) being disposed on a side of the frame (110) remote from the pulley (120).