CN114057133A

CN114057133A - Lifting device

Info

Publication number: CN114057133A
Application number: CN202111425030.3A
Authority: CN
Inventors: 闫文君; 狄美华; 李阳; 韩晓昆; 马永松; 李佳蔚; 于泽洋; 沈彦波; 霍岩
Original assignee: Tianjin Huadian Electric Power Equipment Co ltd; State Grid Corp of China SGCC; State Grid Beijing Electric Power Co Ltd
Current assignee: Tianjin Huadian Electric Power Equipment Co ltd; State Grid Corp of China SGCC; State Grid Beijing Electric Power Co Ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-02-18

Abstract

The invention provides a lifting device, which is used for lifting a part to be transported to a preset position of an electric pole and comprises a base; the operation platform is movably arranged along the vertical direction and is used for bearing the part to be transported; the lifting assembly is arranged between the base and the operating platform and is provided with a first connecting part connected with the base and a second connecting part connected with the operating platform; the distance between the first connecting part and the second connecting part is adjustably set, so that the operating platform drives the part to be transported to reach the preset position by increasing the distance between the first connecting part and the second connecting part.

Description

Lifting device

Technical Field

The invention relates to the field of power distribution network operation, in particular to a lifting device.

Background

The bypass operation method is an operation method in distribution network live-line operation, and is an operation method for realizing power failure maintenance of equipment to be maintained by constructing temporary loops on two sides of the equipment to be maintained by using equipment such as a bypass cable, a bypass switch, a cable connector and the like and bearing load current. The bypass operation method can quickly realize equipment maintenance in a large range on the premise of not influencing rear users, and is an important live working means.

However, in the conventional bypass operation method and process, an operator needs to install the bypass switch on the electric pole, and after the bypass switch is transported to the site, the operator needs to use the small crane of the insulated bucket arm vehicle to hoist the bypass switch to a certain height and then fasten the bypass switch on the electric pole. In the whole process, the processes of carrying, supporting, hoisting, fixing and the like need 3-4 workers for matching, the time consumption is about half an hour, and the time and the labor are wasted.

Disclosure of Invention

The invention mainly aims to provide a lifting device to solve the problem that the working efficiency of live working of a power distribution network in the prior art is low.

In order to achieve the above object, according to one aspect of the present invention, there is provided a lifting device for lifting a to-be-transported member to a predetermined position of an electric pole, the lifting device including: a base; the operation platform is movably arranged along the vertical direction and is used for bearing the part to be transported; the lifting assembly is arranged between the base and the operating platform and is provided with a first connecting part connected with the base and a second connecting part connected with the operating platform; the distance between the first connecting portion and the second connecting portion is adjustably set, so that the operating platform drives the part to be transported to reach the preset position by increasing the distance between the first connecting portion and the second connecting portion.

Furthermore, the first connecting parts are multiple and are connected with the base at intervals; and/or the second connecting parts are multiple and are connected with the operating platform at intervals.

Furthermore, the lifting assembly comprises a first connecting part, one end of the first connecting part is provided with a first connecting part, and the other end of the first connecting part is provided with a second connecting part; first connecting portion are connected with the base relatively rotationally, and second connecting portion are connected with operation platform relatively rotationally.

Further, the first connecting member includes: the first connecting part is arranged at one end of the first connecting rod; and one end of the second connecting rod and one end of the first connecting rod, which is far away from the first connecting part, are relatively and rotatably connected, and the second connecting part is arranged at one end of the second connecting rod, which is far away from the first connecting rod.

Furthermore, first connecting part is two, and two first connecting parts set up with the looks interval, is provided with first dead lever between two first connecting parts, and the head rod and the second connecting rod of two first connecting parts all articulate mutually through first dead lever.

Further, the lift assembly includes a second link member, the second link member including: one end of the third connecting rod is provided with a first connecting part; one end of the fourth connecting rod is relatively rotatably connected with one end of the third connecting rod, which is far away from the first connecting part, and a second connecting part is arranged at one end of the fourth connecting rod, which is far away from the third connecting rod; the base is provided with a first guide rail, the third connecting rod is arranged in the first guide rail in a sliding mode, the operating platform is provided with a second guide rail, and the fourth connecting rod is arranged in the second guide rail in a sliding mode.

Further, the second connecting parts are two, the two second connecting parts are arranged at intervals, a second fixing rod is arranged between the two second connecting parts, and the third connecting rod and the fourth connecting rod of the two second connecting parts are hinged to each other through the second fixing rod.

Further, two second connecting parts are provided in one-to-one correspondence with the two first connecting parts, and the lifting assembly includes: the third fixing rod is arranged between the first connecting part and the second connecting part, and the first connecting rod and the third connecting rod are hinged through the third fixing rod; and the fourth fixing rod is arranged between the first connecting part and the second connecting part, and the second connecting rod and the fourth connecting rod are hinged through the fourth fixing rod.

Further, the lifting device comprises a driving cylinder body, the driving cylinder body is arranged on the base, a piston rod of the driving cylinder body is connected with the base in a relatively rotating mode, the cylinder body of the driving cylinder body is connected with the third connecting rod, and the piston rod is made to stretch and retract to drive the third connecting rod to move.

Further, the lifting device includes: the first driving rod is positioned on one side of the base, which is far away from the lifting assembly, and one end of the first driving rod is connected with the driving cylinder body; the second driving rod is positioned on one side of the base, which is far away from the lifting assembly, and one end of the second driving rod is connected with one end of the first driving rod, which is far away from the driving cylinder body; the operating component is connected with the second driving rod; the second driving rod is rotatably arranged relative to the base, so that the second driving rod is rotated by operating the operating part, and the first driving rod is driven to drive the piston rod to stretch.

Further, the lifting device includes: the pushing handle is connected with the base; the pressure release handle, the pressure release handle sets up on promoting the handle, and the pressure release handle is connected with the drive cylinder body to release the pressure in the drive cylinder body through operating the pressure release handle.

Further, operation platform includes the intercommunication groove, and the intercommunication groove is the rectangle structure, and the lifting device still includes a plurality of installation component that are used for with waiting to transport the part and be connected, and a plurality of installation component encircle the intercommunication groove and set up.

Further, the lifting device still includes fastening structure, and fastening structure sets up on operation platform, and fastening structure includes: one end of the first fastening part is rotatably arranged opposite to the operating platform; the other end of the first fastening part is provided with a winding part; a second fastening member disposed spaced apart from the first fastening member; the winding part surrounds the electric pole and is connected with the second fastening part so as to fix the position of the operating platform.

Further, the lifting device further comprises two positioning components, the two positioning components are arranged between the first fastening component and the second fastening component and are arranged at intervals, and the two positioning components are used for being abutted to the electric pole.

By applying the technical scheme of the invention, the lifting device is used for lifting the part to be transported to the preset position of the electric pole and comprises a base; the operation platform is movably arranged along the vertical direction and is used for bearing the part to be transported; the lifting assembly is arranged between the base and the operating platform and is provided with a first connecting part connected with the base and a second connecting part connected with the operating platform; the distance between the first connecting portion and the second connecting portion is adjustably set, so that the operating platform drives the part to be transported to reach the preset position by increasing the distance between the first connecting portion and the second connecting portion. By adopting the arrangement, when the transportation part to be transported is lifted to the preset position of the electric pole to implement operation, the transportation part to be transported is placed on the operation platform, the operation platform is pushed to move away from the base through the lifting assembly, the transportation part to be transported is pushed to a preset height, manpower is saved in the process, and the problem of low working efficiency of live working of the power distribution network in the prior art is solved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

figure 1 shows a schematic view of an embodiment of a lifting device according to the invention in connection with an electric pole; and

figure 2 shows a schematic mechanical diagram of an embodiment of the lifting device of the present invention.

Wherein the figures include the following reference numerals:

10. a component to be transported; 20. an electric pole;

1. a base; 2. an operating platform; 21. a communicating groove; 22. a mounting member; 3. a lifting assembly; 31. a first connecting member; 311. a first connecting rod; 312. a second connecting rod; 32. a second connecting member; 321. a third connecting rod; 322. a fourth connecting rod; 41. a first fixing lever; 42. a second fixing bar; 43. a third fixing bar; 44. a fourth fixing bar; 5. a drive cylinder; 51. a piston rod; 61. a first drive lever; 62. a second drive lever; 63. an operating member; 7. pushing the handle; 8. a pressure relief handle; 9. a fastening structure; 91. a first fastening member; 92. a winding member; 93. a second fastening member; 94. and a positioning member.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1 and 2, the lifting device of the present embodiment is used for lifting a component to be transported 10 to a predetermined position of an electric pole 20, and the lifting device includes: a base 1; the operation platform 2 is movably arranged along the vertical direction, and the operation platform 2 is used for bearing the component 10 to be transported; the lifting assembly 3 is arranged between the base 1 and the operating platform 2, and the lifting assembly 3 is provided with a first connecting part connected with the base 1 and a second connecting part connected with the operating platform 2; wherein, the distance between the first connecting part and the second connecting part is adjustably set, so that the operating platform 2 drives the component 10 to be transported to reach the preset position by increasing the distance between the first connecting part and the second connecting part. By adopting the arrangement, when the transportation part 10 to be transported needs to be lifted to the preset position of the electric pole 20 for operation, the transportation part 10 to be transported is placed on the operation platform 2, and the operation platform 2 is pushed to move away from the base 1 through the lifting assembly 3, so that the transportation part 10 to be transported is pushed to a preset height, the labor is saved in the process, and the problem of low working efficiency of live working of the power distribution network in the prior art is solved.

In order to stabilize the pushing action of the lifting assembly 3, in the lifting device of the present embodiment, referring to fig. 1 and 2, a plurality of first connecting portions are provided, and the plurality of first connecting portions are connected to the base 1 at intervals; and/or the second connecting parts are multiple and are connected with the operating platform 2 at intervals.

Referring to fig. 1 and 2, in the lifting device of the present embodiment, the lifting assembly 3 includes a first connecting part 31, one end of the first connecting part 31 is provided with a first connecting portion, and the other end of the first connecting part 31 is provided with a second connecting portion; the first connecting part is relatively rotatably connected with the base 1, and the second connecting part is relatively rotatably connected with the operating platform 2. In this way, the purpose of pushing the operation platform 2 upward can be achieved by rotating the first connecting member 31.

In the lifting device of the present embodiment, referring to fig. 1 and 2, the first connecting member 31 includes: a first connection rod 311 disposed at one end of the first connection rod 311; and one end of the second connecting rod 312 is relatively rotatably connected with one end of the first connecting rod 311 far away from the first connecting part, and the second connecting part is arranged at one end of the second connecting rod 312 far away from the first connecting rod 311. In this way, by the folding effect of the first connecting rod 311 and the second connecting rod 312, the operation platform 2 can be enabled to realize a lifting movement of a larger distance in a limited space.

In order to stabilize the pushing action of the lifting assembly 3, referring to fig. 1 and 2, in the lifting device of the present embodiment, there are two first connection parts 31, two first connection parts 31 are disposed at an interval, a first fixing rod 41 is disposed between the two first connection parts 31, and the first connection rod 311 and the second connection rod 312 of the two first connection parts 31 are hinged to each other by the first fixing rod 41.

In order to stabilize the pushing action of the lifting assembly 3, in the lifting device of the present embodiment, referring to fig. 1 and 2, the lifting assembly 3 includes a second connecting member 32, and the second connecting member 32 includes: a third connecting rod 321, one end of the third connecting rod 321 being provided with a first connecting portion; one end of the fourth connecting rod 322 is relatively rotatably connected with one end of the third connecting rod 321 far away from the first connecting part, and one end of the fourth connecting rod 322 far away from the third connecting rod 321 is provided with a second connecting part; wherein the base 1 has a first guide rail in which the third connecting rod 321 is slidably disposed, the operation platform 2 has a second guide rail in which the fourth connecting rod 322 is slidably disposed.

In order to stabilize the pushing action of the lifting assembly 3, referring to fig. 1 and 2, in the lifting device of the present embodiment, there are two second connection members 32, two second connection members 32 are disposed at an interval, a second fixing rod 42 is disposed between the two second connection members 32, and the third connection rod 321 and the fourth connection rod 322 of the two second connection members 32 are hinged to each other through the second fixing rod 42.

In the lifting device of the present embodiment, referring to fig. 1 and 2, two second connection members 32 are provided in one-to-one correspondence with two first connection members 31, and the lifting assembly 3 includes: a third fixing lever 43, the third fixing lever 43 being disposed between the first connecting part 31 and the second connecting part 32, the first connecting rod 311 and the third connecting rod 321 being hinged by the third fixing lever 43; and a fourth fixing bar 44, the fourth fixing bar 44 being disposed between the first and

second connection parts

31 and 32, the second and fourth connection bars 312 and 322 being hinged by the fourth fixing bar 44. In this way, the structure of the lift assembly 3 can be made more robust.

Specifically, when the lifting assembly 3 of this embodiment is manufactured, the first connecting part 31 and the second connecting part 32 are formed by rolling high-quality steel, so that the firmness of the overall structure is ensured, and the bearing capacity is enhanced. The gap between the first and

second coupling parts

31 and 32 is widened to prevent accidental clamping to other objects.

Referring to fig. 1 and 2, in the lifting device of the present embodiment, the lifting device includes a driving cylinder 5, the driving cylinder 5 is disposed on the base 1, a piston rod 51 of the driving cylinder 5 is rotatably connected to the base 1, and a cylinder of the driving cylinder 5 is connected to a third connecting rod 321, so that the piston rod 51 is extended and contracted to drive the third connecting rod 321 to move. In this way, the first connecting part 31 and the second connecting part 32 can jointly push the operating platform 2 to move by pushing the third connecting rod 321 to move, and the operation is simple. In this way, the driving cylinder 5 can be conveniently controlled outside the base 1.

In the lifting device of the present embodiment, referring to fig. 1 and 2, the lifting device includes: the first driving rod 61, the first driving rod 61 is positioned on one side of the base 1 away from the lifting assembly 3, and one end of the first driving rod 61 is connected with the driving cylinder 5; a second driving rod 62, wherein the second driving rod 62 is positioned on one side of the base 1 away from the lifting assembly 3, and one end of the second driving rod 62 is connected with one end of the first driving rod 61 away from the driving cylinder 5; an operating member 63, the operating member 63 being connected to the second drive lever 62; the second driving rod 62 is rotatably disposed relative to the base 1, so that the second driving rod 62 is rotated by operating the operating member 63, and the first driving rod 61 is driven to drive the piston rod 51 to extend and retract.

Specifically, the lifting device in this embodiment adopts totally enclosed hydraulic pressure elevating gear, is furnished with overload protection device, can effectively prevent the overload use, eradicates the hydraulic oil and reveals the problem, and integral case, the leakproofness is good, the maintenance of being convenient for.

Referring to fig. 1 and 2, in the lifting device of the present embodiment, the lifting device includes: the pushing handle 7 is connected with the base 1; a pressure release handle 8, the pressure release handle 8 is arranged on the push handle 7, the pressure release handle 8 is connected with the driving cylinder 5, so as to release the pressure in the driving cylinder 5 by operating the pressure release handle 8.

Specifically, when the height of the lifting platform needs to be lowered, the operation platform 2 can be lowered by pressing the pressure relief handle 8. The descending mode of the knob can accurately control the table top to descend.

In the lifting device of the present embodiment, referring to fig. 1 and 2, the operation platform 2 includes a communication groove 21, the communication groove 21 has a rectangular structure, and the lifting device further includes a plurality of mounting members 22 for connecting with the component to be transported 10, and the plurality of mounting members are disposed around the communication groove 21. By arranging the communicating groove 21, when weather such as rain is met, rainwater cannot be stored on the operating platform 2.

Referring to fig. 1 and 2, in the lifting device of the present embodiment, the lifting device further includes a fastening structure 9, the fastening structure 9 is disposed on the operation platform 2, and the fastening structure 9 includes: a first fastening member 91, one end of the first fastening member 91 being rotatably provided opposite to the operation platform 2; the other end of the first fastening member 91 is provided with a winding member 92; a second fastening member 93, the second fastening member 93 being provided spaced apart from the first fastening member 91; the winding member 92 surrounds the electric pole 20 and is connected with the second fastening member 93 to fix the position of the operation platform 2.

In the lifting device of the present embodiment, referring to fig. 1 and 2, the lifting device further includes two positioning members 94, the two positioning members 94 are disposed between the first fastening member 91 and the second fastening member 93, and the two positioning members 94 are spaced apart from each other, and the two positioning members 94 are configured to abut against the electric pole 20.

The bypass switch (the part to be transported 10) is fixed to the operation platform 2 by a dedicated positioning part 94. Thereby accomplishing the stable lifting of the bypass switch. Specifically, the positioning member 94 is made of a material having a good surface finish, wear resistance, and corrosion resistance.

The lifting device of this embodiment still has the platform truckle, and the platform truckle sets up on base 1, and platform truckle configuration high strength polyurethane wheel, and the walking is light, intensity is high, toughness is good, stand wear and tear, and life is more permanent, when being applicable to highway, meadow, has fine guard action to the terrace.

The lifting device of the embodiment is used as follows:

the bypass switch (the part 10 to be transported) is fixed on a platform of the bypass switch quick-assembly device through a fixture (a mounting part 22).

The whole device is pushed to the working site, and the platform is lifted to the height of 1.2 m by the pedals (operation part 63).

The pole is pressed close to, through fastening structure 9 with the integrated device fastening on the pole, then also fasten bypass switch on the pole, complete bypass switch's the quick installation in scene.

The dismantling method comprises the following steps:

the bypass switch and the fastening structure 9 of the device are released and separated from the pole.

The pressure relief handle 8 is pinched to enable the operation platform 2 to fall back to the lowest point, so that the mobile transportation is convenient.

In the process of installing and dismantling the bypass switch quick-mounting device, the operating platform 2 is kept horizontal as much as possible, the surrounding environment is noticed in the using process, and foreign objects are prevented from entering the scissor fork (the lifting assembly 3).

The bypass switch is fixed to the device by the lifting device of this embodiment. The mobile mode is applicable to highway, meadow etc. and accessible hydraulic pressure shearing formula goes up and down to 1.2 meters height, has the self-locking function simultaneously. The labor efficiency of the workers is improved, and the labor intensity of the workers is reduced.

The lifting device of this embodiment simple structure, easily carry are formed by steel preparation, and reasonable in design and structure, safe and stable reliable installs the relief valve in, and totally enclosed hydro-cylinder, manual control hydraulic system go up and down, and convenient operation is simple and direct. The nylon guide wheel is arranged to save the physical power of an operator and protect the loading wheel and the pallet loading wheel. The design of the unique hydraulic pump is simple and convenient in pump starting and is designed for keeping the height of 1.2 meters for the fastening operation of the bypass switch; the operation of the operator is comfortable. The device can quickly realize the installation and fixation work of the bypass switch on the premise of meeting the requirement of bypass operation.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

the lifting device is used for lifting a component 10 to be transported to a preset position of an electric pole 20 and comprises a base 1; the operation platform 2 is movably arranged along the vertical direction, and the operation platform 2 is used for bearing the component 10 to be transported; the lifting assembly 3 is arranged between the base 1 and the operating platform 2, and the lifting assembly 3 is provided with a first connecting part connected with the base 1 and a second connecting part connected with the operating platform 2; wherein, the distance between the first connecting part and the second connecting part is adjustably set, so that the operating platform 2 drives the component 10 to be transported to reach the preset position by increasing the distance between the first connecting part and the second connecting part. By adopting the arrangement, when the transportation part 10 to be transported needs to be lifted to the preset position of the electric pole 20 for operation, the transportation part 10 to be transported is placed on the operation platform 2, and the operation platform 2 is pushed to move away from the base 1 through the lifting assembly 3, so that the transportation part 10 to be transported is pushed to a preset height, the labor is saved in the process, and the problem of low working efficiency of live working of the power distribution network in the prior art is solved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting device for lifting a part (10) to be transported to a predetermined position of an electric pole (20), characterized in that the lifting device comprises:

a base (1);

the device comprises an operating platform (2), wherein the operating platform (2) is movably arranged along the vertical direction, and the operating platform (2) is used for bearing a component (10) to be transported;

a lifting assembly (3), the lifting assembly (3) being arranged between the base (1) and the operating platform (2), the lifting assembly (3) having a first connecting part connected with the base (1) and a second connecting part connected with the operating platform (2);

the distance between the first connecting portion and the second connecting portion is adjustably set, so that the operating platform (2) drives the component (10) to be transported to reach the preset position by increasing the distance between the first connecting portion and the second connecting portion.

2. Lifting device according to claim 1, characterised in that the first connecting portions are a plurality of which are connected to the base (1) at intervals; and/or the second connecting parts are multiple and are connected with the operating platform (2) at intervals.

3. Lifting device according to claim 1, characterised in that the lifting assembly (3) comprises a first connecting part (31), one end of which first connecting part (31) is provided with the first connecting part and the other end of which first connecting part (31) is provided with the second connecting part; the first connecting portion is connected with the base (1) in a relatively rotatable mode, and the second connecting portion is connected with the operating platform (2) in a relatively rotatable mode.

4. Lifting device according to claim 3, characterised in that the first connecting part (31) comprises:

a first connection rod (311) disposed at one end of the first connection rod (311);

one end of the second connecting rod (312) is relatively rotatably connected with one end, far away from the first connecting part, of the first connecting rod (311), and the second connecting part is arranged at one end, far away from the first connecting rod (311), of the second connecting rod (312).

5. The lifting device according to claim 4, characterised in that said first connecting elements (31) are two, two of said first connecting elements (31) being arranged at a distance, a first fixing bar (41) being arranged between two of said first connecting elements (31), the first connecting bar (311) and the second connecting bar (312) of both of said first connecting elements (31) being hinged by said first fixing bar (41).

6. Lifting device according to claim 5, characterised in that the lifting assembly (3) comprises a second connecting part (32), the second connecting part (32) comprising:

a third connecting rod (321), one end of the third connecting rod (321) being provided with the first connecting portion;

one end of the fourth connecting rod (322) is relatively rotatably connected with one end, far away from the first connecting part, of the third connecting rod (321), and the second connecting part is arranged at one end, far away from the third connecting rod (321), of the fourth connecting rod (322);

wherein the base (1) has a first guide rail in which the third connecting rod (321) is slidably arranged, the operating platform (2) has a second guide rail in which the fourth connecting rod (322) is slidably arranged.

7. The lifting device according to claim 6, wherein the number of the second connecting members (32) is two, two of the second connecting members (32) are arranged at intervals, a second fixing rod (42) is arranged between the two second connecting members (32), and the third connecting rod (321) and the fourth connecting rod (322) of the two second connecting members (32) are hinged by the second fixing rod (42).

8. Lifting device according to claim 7, characterised in that two second connecting members (32) are provided in one-to-one correspondence with two first connecting members (31), the lifting assembly (3) comprising:

a third fixing lever (43), the third fixing lever (43) being disposed between the first connecting part (31) and the second connecting part (32), the first connecting rod (311) and the third connecting rod (321) being hinged by the third fixing lever (43);

a fourth fixing rod (44), wherein the fourth fixing rod (44) is arranged between the first connecting part (31) and the second connecting part (32), and the second connecting rod (312) and the fourth connecting rod (322) are hinged through the fourth fixing rod (44).

9. The lifting device according to claim 8, characterised in that it comprises a driving cylinder (5), the driving cylinder (5) being arranged on the base (1), the piston rod (51) of the driving cylinder (5) being connected to the base (1) in a relatively rotatable manner, the cylinder of the driving cylinder (5) being connected to the third connecting rod (321) in such a way that the third connecting rod (321) is moved by extending and retracting the piston rod (51).

10. The lifting device of claim 9, wherein the lifting device comprises:

a first driving rod (61), wherein the first driving rod (61) is positioned on one side of the base (1) far away from the lifting assembly (3), and one end of the first driving rod (61) is connected with the driving cylinder (5);

a second driving rod (62), wherein the second driving rod (62) is positioned on one side of the base (1) far away from the lifting assembly (3), and one end of the second driving rod (62) is connected with one end of the first driving rod (61) far away from the driving cylinder (5);

an operating member (63), the operating member (63) being connected to the second drive lever (62);

the second driving rod (62) is rotatably arranged relative to the base (1) so as to enable the second driving rod (62) to rotate by operating the operating component (63), and therefore the first driving rod (61) is driven to drive the piston rod (51) to stretch and retract.

11. The lifting device of claim 9, wherein the lifting device comprises:

a push handle (7), the push handle (7) being connected to the base (1);

pressure release handle (8), pressure release handle (8) set up promote on handle (7), pressure release handle (8) with drive cylinder body (5) are connected, with through the operation pressure release handle (8) release pressure in the drive cylinder body (5).

12. Lifting device according to claim 1, characterised in that the operating platform (2) comprises a through-going channel (21), the through-going channel (21) being of rectangular configuration, and that the lifting device further comprises a number of mounting elements (22) for connection with the component (10) to be transported, which mounting elements are arranged around the through-going channel (21).

13. Lifting device according to claim 1, characterised in that it further comprises a fastening structure (9), which fastening structure (9) is provided on the operating platform (2), which fastening structure (9) comprises:

a first fastening member (91), one end of the first fastening member (91) being rotatably provided opposite to the operation platform (2); the other end of the first fastening part (91) is provided with a winding part (92);

a second fastening member (93), the second fastening member (93) being provided at a distance from the first fastening member (91); the winding member (92) surrounds the electric pole (20) and is connected with the second fastening member (93) to fix the position of the operation platform (2).

14. The lifting device according to claim 13, characterised in that it further comprises two positioning members (94), said positioning members (94) being arranged between said first fastening member (91) and said second fastening member (93), said positioning members (94) being arranged at a distance from each other, said two positioning members (94) being intended to abut against said electric pole (20).