CN210065083U

CN210065083U - Lifting device

Info

Publication number: CN210065083U
Application number: CN201920943833.XU
Authority: CN
Inventors: 杜善玉
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2020-02-14
Anticipated expiration: 2029-06-21

Abstract

The utility model provides a lifting device, including last connecting seat, lower connecting seat, elevating system and actuating mechanism. The lifting mechanism comprises a plurality of frames, each frame comprises an upper frame, a lower frame and side frames, the upper frame and the lower frame are respectively provided with an upper fixed pulley and a lower fixed pulley, and the adjacent frames are connected in a sliding manner through the side frames; the lifting mechanisms which are oppositely arranged are connected between the lower connecting seat and the upper connecting seat; the driving mechanism comprises steel wire ropes wound on the lower fixed pulley and the upper fixed pulley on each frame in sequence, and the steel wire ropes are wound and unwound to drive the lifting mechanism to lift. The utility model discloses elevating gear can solve the structure complicacy that current elevating gear exists, the cost is high and maintain inconvenient scheduling problem.

Description

Lifting device

Technical Field

The utility model relates to a conveying equipment technical field, concretely relates to lifting device.

Background

The lifting device is a hoisting machine for vertically transporting people or objects, the existing lifting device is generally driven by hydraulic pressure, the structure is complex, the manufacturing cost is high, the stroke is limited, and when a hydraulic system fails, a failure point is difficult to find, so that the technical level requirement on maintenance personnel is high.

Disclosure of Invention

An object of the utility model is to provide a lifting device to solve the complicated, the cost height of structure and the inconvenient scheduling problem of maintenance that current lifting device exists.

In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:

a lifting device, comprising:

an upper connecting seat;

the lifting mechanism comprises a plurality of frames, each frame comprises an upper frame, a lower frame and side frames, the upper frame and the lower frame are respectively provided with an upper fixed pulley and a lower fixed pulley, and the adjacent frames are connected in a sliding manner through the side frames;

the lifting mechanisms are oppositely arranged and connected between the lower connecting seat and the upper connecting seat;

and the driving mechanism comprises steel wire ropes wound on the lower fixed pulley and the upper fixed pulley on each frame in sequence, and drives the lifting mechanism to lift by retracting and releasing the steel wire ropes.

Further, the lifting device includes:

the folding ladder comprises a plurality of ladder sections which are sequentially hinged and configured to ascend and descend along with the lifting mechanism.

Furthermore, the upper connecting seat is provided with a hanging hole, the folding ladder is provided with a hook, and the folding ladder is connected with the upper connecting seat in a hanging fit mode through the hook and the hanging hole.

Furthermore, the bench is the H type, and is adjacent the bench passes through hinge connection.

Furthermore, the driving mechanism comprises a winding wheel for winding and unwinding the steel wire rope and a handle or a motor for driving the winding wheel to rotate.

Furthermore, the lower connecting seat is provided with a support for supporting the rolling wheel to rotate.

Furthermore, a reinforcing structure is connected between the oppositely arranged lifting mechanisms.

Further, the reinforcing structure comprises a rope disc and at least three ropes wound on the rope disc, and the ropes are used for connecting the oppositely arranged lifting mechanisms in a tensioning manner by connecting the frame.

Further, the frame comprises a connecting block connected with the side frames, and the side frames adjacent to the frame are slidably arranged through the connecting block.

Furthermore, the lower connecting seat is provided with a traveling wheel, and the upper connecting seat is provided with a protective guard.

Compared with the prior art, the utility model discloses an advantage and beneficial effect are:

the utility model discloses at last connecting seat, be connected with elevating system down between the connecting seat, utilize elevating system to drive the connecting seat and realize going up and down, frame quantity among the elevating system can adjust according to the required stroke of last connecting seat, and adjacent frame guarantees the stability of going up and down through side frame sliding connection. In order to realize the reduction of manufacturing cost and the simplification of structure, an upper fixed pulley and a lower fixed pulley are respectively arranged on an upper frame and a lower frame of each frame, after a steel wire rope in a driving mechanism is sequentially wound on the lower fixed pulley and the upper fixed pulley on each frame, because the distance between the upper fixed pulley and the lower fixed pulley on each frame is fixed, when the upper connecting seat needs to be lifted, the frame which is not directly connected with the lower connecting seat is pulled by contracting the steel wire rope, so that relative sliding is generated between the adjacent frames so as to drive the upper connecting seat to be lifted, when the upper connecting seat needs to be lowered, the pulling of the lifted frame is stopped by releasing the steel wire rope, and the lifting of the upper connecting seat can be lowered by utilizing the self weight of the upper connecting seat and the lifted frame.

To sum up, the utility model discloses simple structure, easily make, be favorable to reducing the cost, simultaneously because the shallow understandability that shows of lifting principle, so not high to the technical merit requirement of dimension personnel, be favorable to realizing quick maintenance, maintenance.

Other features and advantages of the present invention will become more apparent from the following detailed description of embodiments of the invention, which is to be read in connection with the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of a lifting device without a folding ladder according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a folding ladder according to an embodiment of the present invention;

description of reference numerals:

an upper connecting seat 100;

a lower connecting seat 200;

a lifting mechanism 300; a frame 310; an upper bezel 311; a lower rim 312; side frames 313; an upper fixed pulley 314; a lower fixed sheave 315; a connection block 316;

a drive mechanism 400; a wire rope 410; a reel 420; a support 430;

a reinforcing structure 500; a rope reel 510; a cord 520;

a folding ladder 600; the ladder section 610.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention.

As shown in fig. 1, the embodiment provides a lifting device, which includes an upper connection seat 100, a lower connection seat 200, a lifting mechanism 300, and a driving mechanism 400 for driving the lifting mechanism 300 to lift, wherein the lifting mechanism 300 is connected between the upper connection seat 100 and the lower connection seat 200, in order to simplify the structure of the lifting mechanism 300 and facilitate manufacturing and maintenance, the lifting mechanism 300 includes a plurality of frames 310 connected in sequence in a sliding manner, each frame 310 includes an upper frame 311, a lower frame 312, and a side frame 313, an upper fixed pulley 314 is installed on the upper frame 311, a lower fixed pulley 315 is installed on the lower frame 312, the upper fixed pulley 314 and the lower fixed pulley 315 are aligned in the vertical direction and are specifically located in the middle of the frame 310, the side frames 313 on adjacent frames 310 are connected in a sliding manner, specifically, the frame 310 in the embodiment is rectangular, the side frames 313 are respectively disposed on two opposite sides of the upper frame 311 and the, in order to better support the upper connecting seat 100 and improve the stability of the overall structure, two sets of lifting mechanisms 300 are connected between the upper connecting seat 100 and the lower connecting seat 200, and the two sets of lifting mechanisms 300 are respectively located at two opposite sides of the upper connecting seat 100 and the lower connecting seat 200.

The driving mechanism 400 includes a steel wire rope 410 wound and matched with the upper fixed pulley 314 and the lower fixed pulley 315, and the steel wire rope 410 is contracted to drive the lifting mechanism 300 to ascend so as to drive the upper connecting seat 100 to ascend, and the steel wire rope 410 is released to drive the lifting mechanism 300 to descend so as to drive the upper connecting seat 100 to descend.

In one embodiment, the two sets of lifting mechanisms 300 may be driven by two steel cables 410, as shown in fig. 1, the steel cables 410 sequentially wind the lower fixed pulley 315 and the upper fixed pulley 314 of each frame 310 from the frame 310 connected to the lower connecting base 200 to the adjacent frame 310, after the steel cables 410 wind the upper fixed pulley 314 of the frame 310 connected to the upper connecting base 100, one end of the steel cable 410 may be fixed to the upper connecting base 100 or the lower connecting base 200, and the operator may retract or release the steel cable 410 by pulling the other end of the steel cable 410.

In order to improve the synchronization of the two sets of lifting mechanisms 300, the two sets of lifting mechanisms 300 in this embodiment are controlled by using a steel cable 410, as shown in fig. 1, in one set of lifting mechanisms 300, from the frame 310 connected with the lower connecting seat 200 to the adjacent frame 310, the steel cable 410 is sequentially wound around the lower fixed pulley 315 and the upper fixed pulley 314 on each frame 310, after the steel cable 410 is wound around the upper fixed pulley 314 of the frame 310 connected with the upper connecting seat 100, then, the steel cable 410 is wound around the upper fixed pulley 314 and the lower fixed pulley 315 on the frame 310 connected with the upper connecting seat 100 in the other set of lifting mechanisms 300, after the steel cable 410 is wound around the lower fixed pulley 315 of the frame 310 connected with the lower connecting seat 200, both ends of the steel cable 410 are located at the lower connecting seat 200, the operator can pull both ends of the wire rope 410 to synchronously control the two sets of lifting mechanisms 300.

In order to conveniently store and release the wire rope 410, the driving mechanism 400 of the present embodiment includes a winding wheel 420, the wire rope 410 is stored and released by rotating the winding wheel 420, and in order to fully utilize the space between the two sets of lifting mechanisms 300, a support 430 for supporting the winding wheel 420 to rotate is specifically installed on the lower connection base 200. In order to rotate the winding wheel 420 conveniently, a handle or a motor may be installed to rotate the winding wheel 420 (not shown in the drawings) to achieve manual lifting or electric lifting, and when the handle is used to rotate the winding wheel 420, a stop structure may be installed to ensure that the rotation of the winding wheel 420 is effectively blocked after the steel cable 410 is wound and unwound in place.

As shown in fig. 1, the frame 310 of the present embodiment includes a connection block 316 connected to the side frame 313, and the connection block 316 may be welded to the side frame 313, so that in order to facilitate assembly and improve reliability of the sliding connection, a through hole is formed in the connection block 316 for the side frame 313 of the adjacent frame 310 to pass through. In order to increase the distance that the adjacent frames 310 can be staggered, the connecting block 316 is fixed between the lower frame 312 and the upper frame 311 at a position adjacent to the upper frame 311.

In order to better support each other by using the two sets of lifting mechanisms 300, the stability of the lifting device is improved, the embodiment of the present invention is that the reinforcing structure 500 can be connected between the two sets of lifting mechanisms 300, the reinforcing structure 500 can be a bar-shaped reinforcing rod connected between the two sets of lifting mechanisms 300, in one embodiment, the reinforcing rod can be welded between two connecting blocks 316 which are highly synchronously changed and located in different lifting mechanisms 300, in one embodiment, the reinforcing rod can be detachably connected between two side frames 313 of different lifting mechanisms 300, due to the sliding connection between the adjacent side frames 313, the reinforcing rod can be detached so as not to cause interference in the lifting process of the lifting mechanism 300, and after the upper connecting seat 100 is lifted to a certain height, the reinforcing rod is horizontally or obliquely connected between two side frames 313 of different lifting mechanisms 300.

In order to reduce the occupied space of the reinforcing structure 500 in an idle state, the reinforcing structure 500 in this embodiment includes a rope reel 510 and four ropes 520 capable of being wound on the rope reel 510, one end of each rope 520 is fixed on the rope reel 510, and a hook (not shown in the drawings) hooked and matched with the side frame 313 is fixed at the other end of each rope 520, after the upper connecting seat 100 is lifted to a certain height, the other ends of the four ropes 520 are respectively hooked on the side frames 313 of the two sets of lifting mechanisms 300 through the hooks, as shown in fig. 1, the four ropes 520 extend in four directions to form mutual locking, so that the stability of the lifting device can be maintained, and the ropes can be wound on the rope reel 510 in an idle state to facilitate storage.

In order to facilitate the climbing up and down of the operator after the upper connecting seat 100 is fixed at a certain height, the lifting device of the embodiment further includes a foldable ladder 600, as shown in fig. 2, the conventional foldable ladder 600 generally includes two sections of ladders which can be opened or folded in half, and although the two sections of ladders can form a support for each other after being opened for the operator to go up and down, the foldable ladder still has a longer length after being folded, is inconvenient to carry, and occupies more space when being stored. In order to occupy less space after folding, this embodiment folding ladder 600 is including a plurality of ladders 610 of articulated in proper order, ladders 610 is the H type, realize articulatedly through the hinge between the adjacent ladders 610, every ladder 610 all has a foot bar and two limit poles, also drive folding ladder 600 and go up and down simultaneously when elevating system 300 drives connecting seat 100 and goes up and down, for this reason, can be connected last connecting seat 100 with folding ladder 600's one end, when going up of last connecting seat 100, folding ladder 600 is driven and rises and expand, when going down of last connecting seat 100, folding ladder 600 is driven and descends and folds.

In order to conveniently disassemble and assemble the folding ladder 600, the upper connecting seat 100 is provided with two hanging holes, one end of the folding ladder 600 is provided with two corresponding hooks (the hooks and the hanging holes are not shown in the attached drawing), and when the folding ladder 600 needs to be driven to lift simultaneously, the hooks only need to be hooked into the hanging holes.

In addition, in one embodiment, a traveling wheel may be installed at a lower portion of the lower connection holder 200, and a braking mechanism may be installed on the traveling wheel, so as to rapidly move the lifting device as needed or safely park it somewhere. In one embodiment, a guard rail may be installed at an upper portion of the upper connector holder 100 to improve safety when a worker stands on the upper connector holder 100 for work.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A lifting device, comprising:

an upper connecting seat;

2. The lifting device as claimed in claim 1, comprising:

3. The lifting device as claimed in claim 2, wherein the upper connecting seat is provided with a hanging hole, the folding ladder is provided with a hook, and the folding ladder is connected to the upper connecting seat through the hanging fit of the hook and the hanging hole.

4. The lift device of claim 2, wherein said ladder sections are H-shaped, adjacent ladder sections being connected by hinges.

5. The lifting device as claimed in claim 1, wherein the driving mechanism comprises a reel for winding and unwinding the steel wire rope and a handle or a motor for driving the reel to rotate.

6. The lifting device as claimed in claim 5, wherein the lower connecting base is provided with a support for supporting the reel to rotate.

7. Lifting device as claimed in claim 1, characterized in that a reinforcing structure is connected between the oppositely arranged lifting mechanisms.

8. Lifting device as claimed in claim 7, characterized in that the reinforcing structure comprises a rope drum and at least three ropes windable about the rope drum, which ropes connect the oppositely arranged lifting mechanisms taut by connecting the frames.

9. The lift device of claim 1, wherein the frame includes a connection block connected to the side frame, the side frame adjacent the frame slidably disposed through the connection block.

10. The lifting device as claimed in claim 1, wherein the lower connecting base is provided with a road wheel, and the upper connecting base is provided with a guard rail.