CN216997529U

CN216997529U - Lifting device and carrier

Info

Publication number: CN216997529U
Application number: CN202220298356.8U
Authority: CN
Inventors: 陈宽; 李铭
Original assignee: Zhejiang Huaray Technology Co Ltd
Current assignee: Zhejiang Huaray Technology Co Ltd
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-07-19
Anticipated expiration: 2032-02-14

Abstract

The utility model relates to a lifting device and a carrier, wherein the lifting device comprises a lifting platform, a supporting seat, a first lifting assembly and a second lifting assembly; first lifting unit and second lifting unit interval set up in the supporting seat to can drive lift platform lift jointly, wherein: the first lifting assembly comprises a first lifting unit which can drive the lifting platform to lift together, and the first lifting unit is connected with one side face of the lifting platform; the second lifting assembly comprises a second lifting unit which can drive the lifting platform to lift together, and the second lifting unit is connected with the bottom surface of the lifting platform; one side of the lifting platform, which is far away from the first lifting component, is provided with an insertion end. The first lifting assembly and the second lifting assembly can ensure the stability of the lifting device when lifting goods, and prevent the lifting device from toppling due to unstable gravity center; meanwhile, the supporting seat can support one side of the lifting device, which is far away from the insertion end, so that the stability of the lifting device during loading and unloading goods is kept.

Description

Lifting device and carrier

Technical Field

The utility model relates to the technical field of cargo handling, in particular to a lifting device and a handling vehicle.

Background

The lifting device in the prior art mostly depends on unilateral lifting, but when the center distance of the carried cargo load is large, the lifting device is prone to toppling, the stability is poor, and the load capacity is small.

A larger balancing weight is added at the rear part of the lifting device or the lifting device adopts double-side lifting to increase the capacity of lifting goods. However, the weight of the entire device is large due to the weight balancing block, and the device is inconvenient to carry; and the lifting on both sides can affect the loading and unloading of goods by the lifting device.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a lifting device and a carrier, which can stably lift and load/unload a load having a large center distance between loads.

The utility model provides a lifting device, which comprises a lifting platform, a supporting seat, a first lifting component and a second lifting component, wherein the first lifting component is arranged on the supporting seat; the first lifting assembly and the second lifting assembly are arranged on the supporting seat at intervals and can drive the lifting platform to lift together, wherein: the first lifting assembly comprises a first lifting unit capable of driving the lifting platforms to lift together, and the first lifting unit is connected with one side face of the lifting platform; the second lifting component comprises a second lifting unit which can drive the lifting platform to lift together, the second lifting unit is connected with the bottom surface of the lifting platform and is arranged at an interval on one side of the lifting platform far away from the first lifting component, so that an insertion end is formed on one side of the lifting platform.

In the lifting device, the first lifting component and the second lifting component are arranged at intervals and can drive the lifting platform to lift through the first lifting unit and the second lifting unit, so that even if the lifting platform needs to lift goods with larger load center distance, the stability of the lifting device during lifting the goods can be ensured, and the lifting device is prevented from toppling due to unstable gravity; simultaneously, need load and unload finished tray goods when elevating gear, during stack and short distance transportation operation, because second lifting unit and lifting platform keep away from the interval setting between one side of first lifting unit, make lifting platform be formed with the end of inserting between the goods that can insert the stack on this one side, be convenient for load and unload the goods, and simultaneously, when inserting the end and insert the goods bottom and carry out the handling operation, the supporting seat can also play the supporting role to one side that elevating gear kept away from to insert the end, avoid inserting the end atress too big and lead to elevating gear to insert the end and empty towards inserting, thereby stability when keeping elevating gear loading and unloading goods.

In one embodiment, the first lifting assembly further comprises a first driving member for driving the first lifting unit to lift, and the second lifting assembly further comprises a second driving member for driving the second lifting unit to lift.

So set up, first driving piece and second driving piece can drive first lift unit and second lift unit respectively as required to drive lift platform through first lift unit and second lift unit jointly and rise or descend to preset height.

In one embodiment, the first driving part and the second driving part are both hydraulic oil cylinders, and the two hydraulic oil cylinders are connected to a hydraulic circuit together through a flow dividing and combining valve.

So set up, the setting up of reposition of redundant personnel collecting valve makes two hydraulic cylinder's of input control fluid match in the hydraulic circuit to make two pneumatic cylinders can keep synchronous flexible comparatively accurately, and then make first lifting unit and second lifting unit can synchronous drive lift platform, guarantee that lift platform remains the level throughout, improve lift platform's stability when going up and down.

In one embodiment, the first driving member includes a first fixed portion and a first movable portion extending and retracting relative to the first fixed portion, and the first lifting unit includes a chain wheel and a chain; the chain wheel is arranged on the first movable part and can rotate relative to the first movable part, the chain is wound on the chain wheel, and two ends of the chain are respectively fixed relative to the supporting seat and the lifting platform.

By the arrangement, the stroke of the lifting platform can be enlarged by the matching mode of the chain wheel and the chain; and, the frictional force between chain and the sprocket is great, is difficult to skid to can guarantee conveying efficiency.

In one embodiment, the number of the chain wheels is two, the number of the chains is corresponding to the number of the chain wheels, and the two chain wheels are symmetrically arranged on two sides of the first driving part.

So set up, every group of sprocket and the power that the chain bore can be reduced to two sets of sprockets and chains, improve the stability of first lift unit when drive lift platform, prolong the life of first lift unit.

In one embodiment, the lifting device further comprises a connecting member, and the chain and the lifting platform are fixedly connected through the connecting member.

So set up, lift platform and first lift unit lug connection can be avoided to the connecting piece, and even influence first lift unit when preventing lift platform from damaging.

In one embodiment, the supporting seat comprises a first supporting frame and a second supporting frame which are fixed with each other, the first supporting frame is vertically arranged, and the second supporting frame is horizontally arranged; the first lifting assembly is arranged on the first support frame and can drive the lifting platform to lift along the first support frame; the second lifting assembly is arranged on the second supporting frame and can support the lifting platform.

So set up, first support frame can keep elevating gear's stability when inserting the end goods handling, and the second support frame can be in the lifting platform plays the supporting role when minimum initial plane.

In one embodiment, the first support frame is provided with a guide rail, and the lifting device further comprises a sliding block which can slide along the guide rail and is fixedly connected with the lifting platform.

So set up, the guide rail can play the guide effect to the slider to guarantee that lift platform can follow vertical direction and go up and down.

In one embodiment, the second lifting unit is configured as a scissor lifting unit.

Due to the arrangement, the scissor type lifting unit is lower in height in a folded state, so that the height of the initial plane of the lifting platform can be reduced; and, the support body stability of scissors formula is higher to can guarantee lift platform's stability.

The utility model also provides a carrier which comprises the lifting device and the carrier body, wherein the supporting seat is detachably connected with the carrier body.

Drawings

FIG. 1 is a schematic perspective view of a lifting device according to an embodiment of the present invention;

FIG. 2 is an enlarged view of the utility model at A in FIG. 1;

FIG. 3 is an enlarged view at B of FIG. 1 in accordance with the present invention;

fig. 4 is a schematic perspective view of a cart according to an embodiment of the present invention.

Description of the main elements

1. A lifting platform; 11. an insertion end; 2. a supporting seat; 21. a first support frame; 211. a guide rail; 212. a top plate; 213. a side plate; 214. a support plate; 22. a second support frame; 3. a first lifting assembly; 31. a first lifting unit; 311. a sprocket; 312. a chain; 313. a first connecting seat; 314. a second connecting seat; 32. a first driving member; 321. a first movable portion; 322. a first fixed part; 4. a second lifting assembly; 41. a second lifting unit; 42. a second driving member; 5. a connecting member; 6. a slider; 7. a vehicle body; 8. and a roller.

The present invention is described in further detail with reference to the drawings and the detailed description.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Among the elevating gear of relevant prior art, rely on unilateral lift mostly, when the cargo load centre-to-centre spacing of transport is great, can lead to elevating gear to take place easily and topple over, stability is relatively poor, and the loading capacity is less. Therefore, the rear part of the partial lifting device can be added with a larger counterweight to increase the capacity of lifting goods, but the installation process of the counterweight is complicated, and the weight of the whole device is larger, so that the device is inconvenient to carry. Also there is some elevating gear to adopt two side to go up and down, but, when needs load and unload, stack and short distance transportation operation to finished pallet goods, the portal of two sides can block between the goods that lift platform inserted the stack, consequently need just can place the goods on lift platform with the help of other instruments, leads to the process of goods handling comparatively complicated.

In order to solve the above problems, as shown in fig. 1 to 4, the present invention provides a lifting device capable of stably lifting and loading and unloading a load having a large center distance of load.

As shown in fig. 1, specifically, the lifting device includes a lifting platform 1, a supporting base 2, a first lifting assembly 3 and a second lifting assembly 4; first lifting unit 3 and second lifting unit 4 interval set up in supporting seat 2 to can drive lift platform 1 jointly and go up and down, wherein: the first lifting assembly 3 comprises a first lifting unit 31 which can drive the lifting platform 1 to lift together, and the first lifting unit 31 is connected with one side surface of the lifting platform 1; the second lifting component 4 comprises a second lifting unit 41 capable of driving the lifting platform 1 to lift together, the second lifting unit 41 is connected with the bottom surface of the lifting platform 1 and is arranged at an interval with one side of the lifting platform 1 far away from the first lifting component 3, so that an insertion end 11 is formed at the side of the lifting platform 1.

As described above, the lifting device that lifts and lowers on one side in the related art is prone to toppling when transporting a load having a large center distance between loads, and is poor in stability and small in load capacity. In the lifting device provided by the embodiment of the utility model, the first lifting component 3 and the second lifting component 4 are arranged at intervals and can drive the lifting platform 1 to lift through the first lifting unit 31 and the second lifting unit 41 together, so that even if the lifting platform 1 needs to lift cargos with large load center distance, the stability of the lifting device during lifting the cargos can be ensured, and the lifting device is prevented from toppling due to unstable gravity. Moreover, the first lifting assembly 3 and the second lifting assembly 4 do not cause the weight of the whole lifting device to be too large, so that the lifting device is convenient to carry. Meanwhile, when the lifting device needs to carry out loading, unloading, stacking and short-distance transportation operation on finished pallet goods, because the second lifting component 4 and one side of the lifting platform 1, which is far away from the first lifting component 3, are arranged at intervals, the insertion end 11 which can be inserted into the stacked goods is formed on the side of the lifting platform 1, so that the loading and unloading of the goods are facilitated, and meanwhile, when the insertion end 11 is inserted into the bottom of the goods for loading and unloading operation, the first lifting component 3 and the second lifting component 4 cannot influence the lifting platform 1 to load and unload the goods, so that the lifting device can realize active goods carrying without manually carrying the goods onto the lifting platform 1; and, the supporting seat 2 can also play the supporting role to the one side that elevating gear kept away from inserting the end 11, avoids inserting end 11 atress too big and leads to elevating gear to insert end 11 and topple over towards to stability when keeping elevating gear loading and unloading goods.

As shown in fig. 2 to 3, the first lifting assembly 3 further includes a first driving member 32 for driving the first lifting unit 31 to lift, and the second lifting assembly 4 further includes a second driving member 42 for driving the second lifting unit 41 to lift. The first driving member 32 and the second driving member 42 can respectively drive the first lifting unit 31 and the second lifting unit 41 as required, and the lifting platform 1 is driven to ascend or descend to a preset height by the first lifting unit 31 and the second lifting unit 41.

In one embodiment, first drive member 32 and second drive member 42 are hydraulic cylinders, and both hydraulic cylinders are commonly connected to a hydraulic circuit by a combining and diverting valve. The flow distributing and collecting valve can enable control oil liquid of two hydraulic oil cylinders input in a hydraulic circuit to be equivalent through automatically adjusting the pressure and the flow inside the flow distributing and collecting valve, so that the two hydraulic oil cylinders can accurately keep synchronous telescopic motion, the first lifting assembly 3 and the second lifting assembly 4 can synchronously drive the lifting platform 1, the lifting platform 1 is guaranteed to be always kept horizontal, and the stability of the lifting platform 1 during lifting is improved. In other embodiments, the first driving unit 32 and the second driving unit 42 may be other elements capable of driving the first lifting unit 31 and the second lifting unit 41 to lift, such as an air cylinder and an electric push rod, as long as the first driving unit 32 and the second driving unit 42 can drive the first lifting unit 31 and the second lifting unit 41 to lift synchronously.

As shown in fig. 3, in an embodiment, the second lifting unit 41 is configured as a scissor type lifting unit, the second driving member 42 includes a second fixed portion and a second movable portion extending and retracting relative to the second fixed portion, the second driving member 42 is horizontally disposed, when the second movable portion extends, the frame body of the scissor type lifting unit is expanded and drives the lifting platform 1 to ascend, and when the second movable portion contracts, the frame body of the scissor type lifting unit is folded and drives the lifting platform 1 to descend. The scissor type lifting unit is lower in height in a folded state, and the height of the lowest initial plane of the lifting platform 1 can be reduced when the scissor type lifting unit is arranged at the bottom of the lifting platform 1; and, the support body stability of scissors formula is higher to can guarantee lift platform 1's stability. In another embodiment, the second driving member 42 is vertically disposed, and the second lifting unit 41 is disposed as a connecting member for connecting the top of the second movable portion and the bottom surface of the lifting platform 1, and the second movable portion can directly drive the lifting platform 1 to ascend or descend when extending or contracting. Of course, in other embodiments, the second lifting unit 41 may be another mechanical structure capable of driving the lifting platform 1 to lift.

As shown in fig. 1 to 2, in one embodiment, the first driving member 32 includes a first fixed portion 322 and a first movable portion 321 extending and contracting with respect to the first fixed portion 322, and the first lifting unit 31 includes a sprocket 311 and a chain 312; the sprocket 311 is disposed on the first movable portion 321 and can rotate relative to the first movable portion 321, and the chain 312 is wound around the sprocket 311, and two ends of the chain are fixed relative to the supporting base 2 and the lifting platform 1. The engagement between the chain wheel 311 and the chain 312 can increase the stroke of the lifting platform 1 to twice that of the first movable portion 321, and the chain 312 and the chain wheel 311 are engaged with each other through the gap between the teeth of the chain wheel 311 and the chain 312 to realize transmission, so that the chain 312 and the chain wheel 311 are not easy to slip even if the weight of the goods on the lifting platform 1 is large, and the transmission efficiency can be ensured.

The lifting device also comprises a connecting piece 5 which is fixedly connected with one side surface of the lifting platform 1 close to the first lifting component 3 by welding, screws, gluing and the like. The connecting piece 5 can avoid the lifting platform 1 and the first lifting unit 31 direct connection, and prevent to influence the first lifting unit 31 when damaging the lifting platform 1 because the goods weight on the lifting platform 1 is great. The first lifting unit 31 further includes a first connecting seat 313 and a second connecting seat 314. The first connecting seat 313 is fixedly mounted on the first fixing portion 322 or the supporting seat 2 by welding, screws, gluing, or the like, so as to ensure the firmness of the connection between the first connecting seat 313 and the first fixing portion 322 or the supporting seat 2, and one end of the chain 312 is connected to the first connecting seat 313. The second connecting seat 314 is fixedly mounted on the connecting member 5 by welding, screwing, gluing, etc. to ensure the firmness of the connection between the second connecting seat 314 and the connecting member 5, and the other end of the chain 312 is connected to the second connecting seat 314.

As shown in fig. 2, the number of the chain wheels 311 is two, the number of the chains 312 is corresponding to the number of the chain wheels 311, and the two chain wheels 311 are symmetrically arranged on both sides of the first driving element 32. The two sets of sprockets 311 and chains 312 can reduce the force borne by each set of sprockets 311 and chains 312, improve the stability of the first lifting unit 31 when driving the lifting platform 1, and prolong the service life of the first lifting unit 31.

In another embodiment, the first lifting unit 31 may also be a connecting member connecting the top of the first movable portion 321 and a side surface of the lifting platform 1, and the first movable portion 321 can directly drive the lifting platform 1 to ascend or descend when extending or contracting. Of course, in other embodiments, the first lifting unit 31 may also be configured as a scissor-type lifting unit or other mechanical structure capable of lifting the lifting platform 1.

As shown in fig. 1, the supporting seat 2 includes a first supporting frame 21 and a second supporting frame 22 fixed to each other, the first supporting frame 21 is vertically disposed, and the second supporting frame 22 is horizontally disposed; the first lifting component 3 is arranged on the first support frame 21 and can drive the lifting platform 1 to lift along the first support frame 21; the second lifting assembly 4 is disposed on the second supporting frame 22 and can support the lifting platform 1. The first support frame 21 can maintain the stability of the lifting device when the insertion end 11 loads and unloads goods, and the second support frame 22 can support the lifting platform 1 when the lifting platform 1 is at the lowest initial position. The first support frame 21 includes a top plate 212 and two side plates 213 fixed to each other in a U shape, the top plate 212 is used for connecting the two side plates 213 and improving the stability of the side plates 213, the first support frame 21 further includes a support plate 214 disposed between the two side plates 213, the second support frame 22 is erected on the support plate 214, and the first driving member 32 is disposed in the middle of the support plate 214.

As shown in fig. 1, the side plate 213 of the first support frame 21 is provided with a guide rail 211, and the lifting device further includes a slider 6 which can slide along the guide rail 211 and is fixedly connected with the connecting member 5 by welding, screws, gluing, or the like. The guide rail 211 can guide the sliding block 6, so as to further ensure that the lifting platform 1 can lift along the vertical direction.

As shown in fig. 4, the present invention further provides a transportation vehicle, which includes the above-mentioned lifting device and a vehicle body 7, wherein the first support frame 21 of the support base 2 is detachably connected to the vehicle body 7. The bottom of the second support frame 22 is provided with a roller 8, so that the vehicle body 7 can drive the lifting device to move synchronously when moving. The rollers 8 may be disposed on two sides of the second lifting assembly 4, so as to support the second supporting frame 22 and the second lifting assembly 4, thereby further improving the stability of the lifting device.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

Claims

1. A lifting device is characterized by comprising a lifting platform (1), a supporting seat (2), a first lifting component (3) and a second lifting component (4); first lifting unit (3) and second lifting unit (4) interval set up in supporting seat (2) to can drive jointly lift platform (1) goes up and down, wherein:

the first lifting assembly (3) comprises a first lifting unit (31) capable of driving the lifting platform (1) to lift together, and the first lifting unit (31) is connected with one side face of the lifting platform (1);

the second lifting component (4) comprises a second lifting unit (41) capable of driving the lifting platform (1) to lift together, the second lifting unit (41) is connected with the bottom surface of the lifting platform (1), and is arranged at one side of the lifting platform (1) far away from the first lifting component (3) at intervals, so that an insertion end (11) is formed at one side of the lifting platform (1).

2. The lifting device as claimed in claim 1, characterized in that the first lifting assembly (3) further comprises a first drive member (32) for driving the first lifting unit (31) to lift, and the second lifting assembly (4) further comprises a second drive member (42) for driving the second lifting unit (41) to lift.

3. The lift device of claim 2, wherein the first drive member (32) and the second drive member (42) are each hydraulic rams, and both of the hydraulic rams are commonly connected to a hydraulic circuit by a combining and diverting valve.

4. The lifting device according to claim 2, characterized in that the first driving member (32) comprises a first fixed part (322) and a first movable part (321) which extends and retracts relative to the first fixed part (322), and the first lifting unit (31) comprises a chain wheel (311) and a chain (312);

the chain wheel (311) is arranged on the first movable part (321) and can rotate relative to the first movable part (321), the chain (312) is wound on the chain wheel (311), and two ends of the chain wheel are fixed relative to the supporting seat (2) and the lifting platform (1) respectively.

5. The lifting device according to claim 4, characterized in that the number of the chain wheels (311) is two, the number of the chains (312) is corresponding to the number of the chain wheels (311), and the two chain wheels (311) are symmetrically arranged on both sides of the first driving member (32).

6. The lifting device according to claim 5, characterized in that it further comprises a connecting piece (5), the chain (312) and the lifting platform (1) being fixedly connected by means of the connecting piece (5).

7. The lifting device according to claim 1, characterized in that the support base (2) comprises a first support frame (21) and a second support frame (22) fixed to each other, the first support frame (21) being arranged vertically and the second support frame (22) being arranged horizontally;

the first lifting assembly (3) is arranged on the first support frame (21) and can drive the lifting platform (1) to lift along the first support frame (21); the second lifting assembly (4) is arranged on the second supporting frame (22) and can support the lifting platform (1).

8. Lifting device according to claim 7, characterized in that the first support frame (21) is provided with a guide rail (211), the lifting device further comprising a slide (6) which is slidable along the guide rail (211) and fixedly connected to the lifting platform (1).

9. Lifting device according to claim 1, characterized in that the second lifting unit (41) is arranged as a scissor lifting unit.

10. A trolley, characterized in that it comprises a lifting device according to any one of claims 1 to 9 and a trolley body (7), said support (2) being removably connected to said trolley body (7).