CN219689253U - Fork truck - Google Patents

Abstract

The utility model discloses a forklift, which comprises a forklift body, a first fork assembly and a second fork assembly, wherein the first fork assembly is arranged on the forklift body and can lift relative to the forklift body, and the first fork assembly can contact a road surface to assist in supporting the forklift; the second fork assembly is arranged on the forklift body, is independent of the first fork assembly and can lift relative to the forklift body. In the circumstances of being different from the correlation technique, fork truck has two at least fork subassemblies, and two at least fork subassemblies can independently go up and down, and two at least fork subassemblies can be used for the goods to transport respectively from this, and then can improve the efficiency of fork truck transport goods.

Description

Fork truck

Technical Field

The utility model relates to the field of mechanical equipment, in particular to a forklift.

Background

Fork trucks are a common mechanical device in the field of cargo transportation. However, a forklift generally can only carry a pallet of goods at a time, and is low in efficiency, and is difficult to meet the requirements of scenes in which goods are required to be carried at high frequency and high efficiency.

Disclosure of Invention

The utility model mainly solves the technical problem of providing a forklift, and can solve the problem of lower efficiency of carrying goods by the existing forklift.

In order to solve the technical problems, the utility model adopts a technical scheme that: the forklift comprises a forklift body, a first fork assembly and a second fork assembly, wherein the first fork assembly is arranged on the forklift body and can lift relative to the forklift body, and the first fork assembly can contact a road surface to assist in supporting the forklift; the second fork assembly is arranged on the forklift body, is independent of the first fork assembly and can lift relative to the forklift body.

The beneficial effects of the utility model are as follows: in the circumstances of being different from the correlation technique, fork truck has two at least fork subassemblies, and two at least fork subassemblies can independently go up and down, and two at least fork subassemblies can be used for the goods to transport respectively from this, and then can improve the efficiency of fork truck transport goods. In addition, the first fork assembly can assist in supporting the forklift, so that the forklift is more stable in forking and transporting goods, and is not easy to incline or topple.

Drawings

FIG. 1 is a schematic plan view of an embodiment of a forklift of the present utility model;

fig. 2 is a schematic view of an application scenario of an embodiment of the forklift of the present utility model;

FIG. 3 is a schematic front view of a fork of an embodiment of the fork truck of the present utility model;

FIG. 4 is a schematic illustration of the operation of an embodiment of the fork lift truck of the present utility model;

FIG. 5 is a schematic view of another application scenario of an embodiment of the fork truck of the present utility model;

fig. 6 is a schematic diagram illustrating the operation of the forklift according to the embodiment of the present utility model in another application scenario.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The present inventors have long studied and found that in the related art, a forklift typically has one fork, in which case the forklift typically can only handle one pallet at a time. For some situations where high frequency handling of goods is required, the handling efficiency of forklifts is often low. Although the increase in the number of forklifts can effectively improve the efficiency of conveyance, there are also causes of increased cost and difficulty in path planning for a plurality of forklifts. In order to solve the above technical problems, the present utility model proposes the following embodiments.

The following embodiments of the forklift of the present utility model describe exemplary configurations of forklifts.

Referring to fig. 1 and 2, a forklift 1 may include a forklift body 10 and at least two fork assemblies 30. At least two fork assemblies 30 may be respectively provided to the fork truck body 10 and may be liftable and lowerable relative to the fork truck body 10 independently of each other.

The at least two fork assemblies 30 may include a first fork assembly 31 and a second fork assembly 32.

The first fork assembly 31 may be provided to the forklift body 10 and may be liftable with respect to the forklift body. The first fork assembly 31 is capable of contacting the road surface to assist in supporting the truck 1. The second fork assembly 32 may be provided to the forklift body 10 independently of the first fork assembly 31 and may be liftable with respect to the forklift body 10. In other examples, at least two of the fork assemblies 30 may further include a third fork assembly (not shown).

In contrast to the related art, the forklift 1 has at least two fork assemblies 30, and the at least two fork assemblies 30 can be independently lifted, so that the at least two fork assemblies 30 can be used for transporting goods, and further, the efficiency of transporting the goods by the forklift 1 can be improved. In addition, the first fork assembly can assist in supporting the forklift, so that the forklift is more stable in forking and transporting goods, and is not easy to incline or topple.

The truck body 10 may include a movement mechanism and a lifting mechanism. The moving mechanism may be used to drive the forklift 1 to move. The lifting mechanism may be used to drive the forklift mast 20 and at least two fork assemblies 30 to lift.

The movement mechanism may include a power system and steering wheel 101, among other things. The steering wheel 101 may be provided at the bottom of the forklift body 10 and contact the road surface. The power system can be used for driving the steering wheel 101 to rotate, so that the steering wheel 101 can move relative to the road surface on the road surface, and further the forklift 1 is driven to move. In addition, the forklift 1 may further comprise at least two driven wheels. Two driven wheels may be provided at the bottom of the truck body 10. The two driven wheels and the steering wheel 101 can be arranged in a non-collinear manner, so that the stability of the forklift 1 can be improved.

The lifting mechanism may include a drive mechanism and a transmission mechanism. The drive mechanism may be a motor. The drive mechanism may be in powered connection with the forklift mast 20 and the fork assembly 30 via a transmission. The transmission mechanism can be used for driving the forklift mast 20 and the fork assembly 30 to perform lifting motion relative to the forklift body 10 under the action of the driving mechanism.

Optionally, the forklift 1 may further comprise a forklift mast 20. The forklift mast 20 may be provided to the forklift body 10.

Alternatively, the forklift mast 20 may be a two-stage mast or a three-stage mast, or the like, as is common mast construction. In other words, the forklift mast 20 may include an outer mast 21 and an inner mast 22. The inner mast 22 is provided to the forklift body 10, and the outer mast 21 is slidably provided to the inner mast 22 so as to be slidable in the height direction of the forklift body 10 with respect to the inner mast 22.

In this case, the fork assembly 30 provided on the forklift mast 20 can be lifted along with the forklift mast 20 when the inner mast 22 and/or the outer mast 21 are lifted, and thus the lifting height of the fork assembly 30 can be increased.

In other examples, the forklift mast 20 may further include a middle mast (not shown) disposed between the outer mast 21 and the inner mast 22. The inner door 22 is slidably disposed to the inner door 22. The outer door frame 21 is slidably provided to the middle door frame. In this case, the fork assembly 30 of the forklift 1 can be further raised.

Optionally, the first fork assembly 31 and the second fork assembly 32 are slidably disposed on the forklift mast 20 so as to be capable of sliding with respect to the forklift mast 20 and thus capable of lifting with respect to the forklift body 10.

Alternatively, the first fork assembly 31 and the second fork assembly 32 are arranged in the height direction of the forklift body 10, and the second fork assembly 32 is located above the first fork assembly 31. In this case, the forklift 1 can be made to carry the goods of at least two pallets at a time while controlling the occupied area of the forklift 1, and further the carrying efficiency of the forklift 1 can be improved.

Alternatively, the first fork assembly 31 may be raised and lowered relative to the truck body 10 between a first lowermost position and a first uppermost position. The second fork assembly 32 is liftable and lowerable relative to the fork truck body 10 between a second lowermost position and a second uppermost position. Optionally, the second highest position is higher than the first highest position. The second lowest position is higher than the first lowest position.

It should be noted that, the first lowest position may refer to a limit position where the first fork assembly 31 is located at the lowest position during lifting. The first highest position may refer to an extreme position where the first fork assembly 31 is at the highest during lifting. The first fork assembly 31 can be raised and lowered between the two extreme positions. Likewise, the second lowest position may refer to an extreme position at which the second fork assembly 32 is located at a lowest position during lifting and lowering, and the second highest position may refer to an extreme position at which the second fork assembly 32 is located at a highest position during lifting and lowering. The second fork assembly 32 can be raised and lowered between the two extreme positions.

Alternatively, the first fork assembly 31 and the second fork assembly 32 may be configured to: when the first fork assembly 31 is at the first lowest position and the second fork assembly 32 is at the second lowest position, the second fork assembly 32 contacts and is supported on the first fork assembly 31. That is, the second fork assembly 32 may be placed on the first fork assembly 31 with both the first fork assembly 31 and the second fork assembly 32 in respective lowermost extreme positions.

When no cargo is placed on the first fork assembly 31, for example, the first fork assembly 31 is in an idle state, or when the first fork assembly 31 is not taking and placing cargo, only the second fork assembly 32 is in the second lowest position and is carried on the first fork assembly 31 when the second fork assembly 32 is taking cargo, so that the possibility of injury to the user caused by the second fork assembly 32 can be reduced.

Optionally, the side of the first fork assembly 31 remote from the forklift mast 20 is provided with a leg assembly. The first fork assembly 31 may include a roller 301 that contacts and supports the road surface when the first fork assembly 31 is in the first lowermost position. In this case, the roller 301 may be used to carry part of the weight of the first fork assembly 31 and the cargo, so as to protect the first fork assembly 31. That is, the roller 301 may increase the pivot of the forklift 1, so that the forklift 1 is more stable when forking and transferring the goods, and is not easy to incline or topple.

Compared with the situation that a pallet is carried each time, if the forklift 1 carries more than two pallets at a time, the gravity center of the forklift 1 may move forward, and at this time, if the first fork assembly 31 and the second fork assembly 32 are lifted higher, the forklift 1 may be inclined. In this case, the roller 301 may provide a supporting function at the front end of the forklift 1 to have an effect of increasing the stability of the forklift 1.

Optionally, the first fork assembly 31 includes a first fork carriage 311 and a first fork 312. The first fork 312 is fixedly connected to the first fork carriage 311. In addition, the first fork 312 may include two spaced apart prongs to thereby enable the fork and temporary load to be carried. The first fork carriage 311 is slidably disposed on the forklift mast 20. Optionally, the first fork assembly 31 is slidably disposed to the inner mast 22 to be slidable along the inner mast 22 in the height direction of the fork truck body 10. That is, the first fork carriage 311 is slidable relative to the inner mast 22 to move between the first lowermost position and the first uppermost position.

Optionally, the second fork assembly 32 includes a second fork carriage 321 and a second fork 322, and the second fork 322 is fixedly connected to the second fork carriage 321. In addition, the second fork 322 may include two spaced apart prongs to thereby enable the picking and temporary loading of cargo. The second fork carriage 321 is slidably disposed to the forklift mast 20. Optionally, the second fork assembly 32 is slidably arranged to the outer mast 21, being able to slide with the outer mast 21 relative to the inner mast 22, and being able to slide along the outer mast 21 in the height direction of the fork truck 1. That is, the second fork carriage 321 is slidable relative to the outer mast 21 and the outer mast 21 is slidable relative to the inner mast 22, thereby enabling the second fork assembly 32 to be moved between the second uppermost positions.

Referring to fig. 2, when the forklift 1 transfers the goods of at least two pallets simultaneously, for example, when the goods of at least two pallets are forked from the pallet 2 or when the goods of at least two pallets are placed on the pallet 2, the second fork assembly 32 may be lifted to be slightly higher than the second layer of the pallet 2, and the first fork assembly 31 may be lifted to be slightly higher than the first layer of the pallet 2, and then the goods of at least two pallets may be placed on the pallet 2 simultaneously or the goods of at least two pallets on the pallet 2 may be forked simultaneously.

In addition, when the forklift 1 forks the goods on the road surface, the goods of one pallet can be first fork-fetched by the second fork assembly 32, then the second fork assembly 32 is lifted, and then the first fork assembly 31 can be controlled to fork the goods of the other pallet. Similarly, when the two pallets are required to be placed on the road, the first fork assembly 31 can be controlled to put down the carried goods, then the fork truck 1 is controlled to be far away from the put down goods, and the second fork assembly 32 can be lowered to lower the carried goods on the second fork assembly 32. This enables efficient transportation of cargo in various scenes.

Optionally, the extending directions of the first fork 312 and the second fork 322 are parallel. For example, the prongs of the first fork 312 and the second fork 322 may both extend towards the front side of the fork truck 1, in which case the working spaces (lifting spaces) of the first fork assembly 31 and the second fork assembly 32 at least partially coincide, thereby enabling a more compact structure of the fork truck 1.

Optionally, the first fork 312 and the second fork 322 have the same extension length. In this case, when the first fork 312 and the second fork 322 are used to fork the goods, the edges of the goods may be substantially aligned, not easily inclined, and it can be advantageous to place the goods of the first fork 312 and the second fork 322 on the first layer and the second layer of the pallet 2 at the same time.

Considering that the primary implementation of the first fork assembly 31 carries the road surface or the first layer of cargo of the pallet 2, the elevation height (i.e., the difference between the first lowest position and the first highest position) of the first fork assembly 31 may be relatively short, e.g., 5-30 cm. Further, the first fork assembly 31 may be positioned 5-30 cm from the road surface when in the first uppermost position. The first fork assembly 31 is positioned at a first lowermost position and may contact the road surface, i.e., 0 cm from the road surface.

The second fork assembly 32 may be used to carry not only the road surface or the first tier of goods on the pallet 2, but also the second tier of goods on the pallet 2, so that the elevation height (i.e., the second lowest position and the second highest position) of the second fork assembly 32 may be longer, for example, 50-300 cm. Further, the second lowest location may be 5-20 cm from the road surface (i.e., about the thickness of the first fork 312), and the second highest location may be 55-320 cm from the road surface.

Optionally, the forklift 1 comprises cargo detection means for cargo detection. The cargo detecting device is disposed on the second fork frame 321 and ascends and descends along with the second fork frame 321. The cargo detection device may be a lidar. The laser radar can scan a scene and acquire point cloud data. In addition, the cargo detection device may be coupled to a processing system of the truck body 10. The processing system can analyze the point cloud data of the laser radar cargo to detect the cargo.

In addition, the processing system of the forklift body 10 can obtain scene information according to the point cloud data obtained by the laser radar, and determine the transporting sequence and the moving path of the forklift 1 according to the scene information, thereby realizing intelligent transporting of goods and further improving the efficiency of transporting the goods.

Alternatively, the forklift 1 includes a first obstacle detection device and a second obstacle detection device for obstacle detection. The first obstacle detecting device is disposed at the end of the first fork 312 away from the forklift body 10. The second obstacle detecting device is disposed at the end of the second fork 322 away from the forklift body 10. Wherein the first obstacle detecting device and the second obstacle detecting device may be photoelectric sensors. By providing the first obstacle detecting device and the second obstacle detecting device, the possibility of collision of the first fork 312 and the second fork 322 with the cargo or the pallet 2 can be reduced.

Referring to fig. 3, in some examples, each tier of shelves 2 may be capable of holding at least two pallet loads. Fig. 4 illustrates schematically, by means of a simplified top view, the process of transferring goods to the pallet 2 by the forklift 1.

Taking the example of transferring the goods a to the C area of the pallet 2, the forklift 1 may first scan the field by the goods detection device to identify the goods a and the goods B. Further, the forklift 1 can distinguish the goods a from the goods B according to the placement positions of the goods or the marking information of the goods. After identifying the goods a, if the space between the goods a and the goods shelf 2 is smaller, when the forklift 1 cannot directly turn the direction, the goods a can be first forked and moved to the goods middle turning area L, and then the forklift 1 can be turned to carry the goods a to the vicinity of the goods shelf 2. Further, the forklift 1 may transfer the goods a to the C area of the pallet 2 according to the preset position information.

In other examples, the cargo detection device may also be capable of scanning the racks to identify empty spaces of the racks, thereby transferring cargo a to empty spaces of the racks 2.

In other examples, the forklift 1 according to the forklift embodiment of the present utility model may be used for carrying goods in various other situations.

Referring to fig. 5, fig. 5 shows a schematic view of a forklift 1 placing a stack of goods a in the E area and goods B in the F area in the G area. In this case, the forklift 1 may move to the area E, and the cargo a is picked up by the second forks 322. The truck 1 may then move to zone F to lift the second fork 322 and then fork the load B through the first fork 312. After picking up the goods a and B, the forklift 1 moves to the area F, and during this process, the first fork 312 may also lift, so that the goods B maintain a predetermined distance from the ground during the movement (see fig. 6).

After moving to zone F, the truck 1 may first lower the first fork 312 to place the load B in zone F. The truck 1 may then control the second forks 322 to descend so that the load a is placed over the load B. After the goods a are stacked above the goods B, the forklift 1 can move out of the F area.

Further, in some examples, after goods a and goods B are stacked in region F, further movement may be required subsequently. In this case, the forklift 1 may lift the second fork 322 to be used for forking the goods a stacked on the upper side of the goods B, and after the second fork 322 forks the goods a, the second fork 322 may further drive the goods a to lift, so as to reserve an operation space for the first fork 312 to fork the goods B. The first fork 312 may then be used to fork the cargo B.

Of course, in other examples, the stacked cargo a and cargo B may also be handled at one time by a large tonnage forklift.

In summary, the forklift 1 has at least two fork assemblies 30, and at least two fork assemblies 30 can be lifted independently, so that at least two fork assemblies 30 can be used for transporting cargoes respectively, and further the efficiency of transporting cargoes by the forklift 1 can be improved. In addition, be provided with the landing leg subassembly on being close to the first fork subassembly of fork truck main part 10 bottom, can increase fork truck's fulcrum for fork truck is more stable when forking and getting and transporting the goods, is difficult to slope or emptys.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims (10)

1. A forklift truck, comprising:

the main body of the forklift is provided with a plurality of guide rails,

the first fork assembly is arranged on the forklift body and can lift relative to the forklift body, and the first fork assembly can contact a road surface to assist in supporting the forklift; and

the second fork assembly is arranged on the forklift body, is independent of the first fork assembly, and can lift relative to the forklift body.

2. The forklift of claim 1, wherein,

the first fork assembly and the second fork assembly are arranged in the height direction of the forklift body, and the second fork assembly is located above the first fork assembly.

3. A forklift as claimed in claim 2, wherein,

the first fork assembly can be lifted relative to the forklift body between a first lowest position and a first highest position, and the second fork assembly can be lifted relative to the forklift body between a second lowest position and a second highest position; the second highest position is higher than the first highest position, and the second lowest position is higher than the first lowest position.

4. A forklift as claimed in claim 3, wherein,

when the first fork assembly is positioned at the first lowest position and the second fork assembly is positioned at the second lowest position, the second fork assembly is contacted with and supported on the first fork assembly.

5. A forklift as claimed in claim 3, wherein,

the first fork assembly includes rollers that contact and support the road surface when the first fork assembly is in the first lowermost position.

6. A forklift as claimed in claim 2, wherein,

the forklift truck comprises a forklift truck main body, and is characterized by also comprising a forklift truck door frame, wherein the forklift truck door frame is arranged on the forklift truck main body;

the first fork assembly and the second fork assembly are slidably arranged on the forklift mast, so that the forklift mast can slide, and the forklift mast can be lifted and lowered relatively.

7. The forklift of claim 6, wherein,

the first fork assembly comprises a first fork frame and a first fork, the first fork is fixedly connected with the first fork frame, and the first fork frame is slidably arranged on the forklift mast;

the second fork assembly comprises a second fork frame and a second fork, the second fork is fixedly connected with the second fork frame, and the second fork frame is slidably arranged on the forklift mast.

8. The forklift of claim 7, wherein,

the extending directions of the first fork and the second fork are parallel.

9. The forklift of claim 7, wherein,

the forklift comprises a cargo detection device for detecting cargos, wherein the cargo detection device is arranged on the second fork frame and ascends and descends along with the second fork frame; and/or the number of the groups of groups,

the forklift comprises a first obstacle detection device and a second obstacle detection device, wherein the first obstacle detection device is used for detecting obstacles, the first fork is far away from the tail end of the forklift body, and the second obstacle detection device is arranged at the tail end of the forklift body, which is far away from the second fork.

10. The forklift of claim 6, wherein,

the forklift mast comprises an outer mast and an inner mast, the inner mast is arranged on the forklift main body, and the outer mast is slidably arranged on the inner mast so as to be capable of sliding in the height direction of the forklift main body relative to the inner mast;

the first fork assembly is slidably arranged on the inner door frame so as to be capable of sliding along the inner door frame in the height direction of the forklift body; the second fork assembly is slidably arranged on the outer door frame, can slide along the outer door frame relative to the inner door frame, and can also slide along the outer door frame in the height direction of the forklift.