CN115465813A

CN115465813A - Small-size forklift

Info

Publication number: CN115465813A
Application number: CN202211045575.6A
Authority: CN
Inventors: 唐露; 吕朝顺; 陈文成
Original assignee: Multiway Robotics Shenzhen Co Ltd
Current assignee: Multiway Robotics Shenzhen Co Ltd
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2022-12-13
Also published as: WO2024045417A1

Abstract

The invention discloses a small-volume forklift, which comprises a forklift body, a portal frame and a pallet fork, wherein the forklift body comprises a frame, the frame is movably arranged, two ends of the frame are respectively connected with two supporting arms, the two supporting arms are oppositely arranged and form an installation space with the frame in a surrounding manner; the door frame is movably arranged in the mounting space along the front-back direction of the vehicle body so as to move close to or far away from the vehicle frame, and the door frame extends along the height direction of the vehicle body; the fork is arranged on the gantry in a lifting manner and is positioned on one side of the gantry departing from the frame. The technical scheme of the invention aims to improve the storage capacity rate by reducing the volume of the forklift.

Description

Small-size forklift

Technical Field

The invention relates to the technical field of forklifts, in particular to a forklift with a small volume.

Background

Fork truck is a vehicle that uses the fork as load handling device, can promote certain height with the goods, can transport. At present, a forklift usually arranges a forklift body and a fork on two sides of a portal frame in consideration of the counterweight of the forklift body, so that the gravity center of the forklift falls on the forklift body, and the counterweight balance of the forklift is realized.

However, the overall size of the forklift is too large due to the forklift layout of the two sides of the gantry with the forklift body and the fork arranged separately, and in the process of warehousing and transportation, a roadway space with wider width needs to be designed for the forklift for driving and steering. For storage and transportation, the increase of the roadway space can cause the reduction of the storage capacity rate, so that the storage space of the warehouse cannot be fully utilized.

Disclosure of Invention

The invention mainly aims to provide a forklift with small volume, and aims to improve the storage capacity rate by reducing the volume of the forklift.

In order to achieve the above object, the present invention provides a small-sized forklift, including:

the device comprises a vehicle body and a control device, wherein the vehicle body comprises a vehicle frame, the vehicle frame is movably arranged, two ends of the vehicle frame are respectively connected with two support arms, the two support arms are oppositely arranged and form an installation space with the vehicle frame in a surrounding manner;

the door frame is movably arranged in the mounting space along the front-back direction of the vehicle body so as to move close to or away from the vehicle frame, and the door frame extends along the height direction of the vehicle body; and

the fork is arranged on the door frame in a liftable mode and is located on one side, deviating from the frame, of the door frame.

In an embodiment of the invention, the frame comprises:

the two ends of the frame counterweight are respectively connected with the two support arms, a mounting cavity is formed in the frame counterweight, and a steering wheel is arranged at the bottom of the frame counterweight; and

the steering wheel driving piece is arranged in the installation cavity, the output end of the steering wheel driving piece penetrates through the frame counterweight piece and is connected with the steering wheel in a transmission mode to drive the steering wheel to rotate.

In an embodiment of the present invention, the support arm includes:

the support arm counterweight part is connected with one end of the frame counterweight part;

and the bearing wheel is arranged at the bottom of the support arm counterweight.

In an embodiment of the present invention, the load bearing wheel is disposed at an end of the arm weight member away from the frame.

In an embodiment of the present invention, the small-volume forklift further includes a gantry driving member, the gantry driving member is disposed on the frame counterweight member, and a movable end of the gantry driving member is connected to the gantry to drive the gantry to approach or move away from the frame;

and the bottom of the portal frame is provided with a roller.

In an embodiment of the present invention, one side of the mounting cavity facing the gantry is penetrated to the surface of the vehicle frame counterweight, and one side of the gantry driving member facing away from the gantry is inserted into the inner wall of the mounting cavity.

In an embodiment of the present invention, two sides of the door frame are slidably connected to the two support arms, respectively.

In an embodiment of the present invention, a sliding groove is disposed on one side of the support arm facing the gantry, and a sliding member is disposed on one side of the gantry facing the support arm, and the sliding member can slide in the sliding groove.

In an embodiment of the present invention, the slider includes:

one end of the bracket is connected with the door frame, and one side of the bracket, which is far away from the door frame, is provided with a pulley which is inserted into the sliding groove;

the peripheral surface of the pulley is abutted against the side wall of the sliding groove.

In an embodiment of the invention, the small-volume forklift further comprises a remote interaction module for remotely controlling the small-volume forklift to operate.

The small-volume forklift comprises a forklift body, a portal frame and a pallet fork, wherein the small-volume forklift only reduces the volume of the forklift, but does not specifically limit the size of the forklift. The automobile body includes mobilizable frame, and the frame both ends are equipped with the support arm respectively, and two support arms and frame enclose to close and form the installation space that is used for acceping portal and fork, and the portal can be relative frame back-and-forth movement in the installation space, drives the fork and stretches out the installation space fork and get the goods, or drives the fork and retract the whole volume when in order to reduce little volume fork truck operation in the installation space.

When the small-volume forklift moves, the portal frame drives the fork to retract into the installation space, and the two support arms of the forklift body and the fork are positioned on the same side of the portal frame, namely the forklift body and the fork are positioned on the same side of the portal frame.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of an embodiment of the small-volume forklift of the present invention;

FIG. 2 is another view from FIG. 1;

FIG. 3 is another view from FIG. 1;

fig. 4 is a cross-sectional view of the small-sized forklift of the present invention.

The reference numbers illustrate:

reference numerals	Name(s)	Reference numerals	Name(s)
				100	Small-size forklift	123	Sliding chute
10	Vehicle body	13	Installation space
				11	Vehicle frame	20	Door frame
111	Vehicle frame counterweight	21	Roller wheel
				1111	Mounting cavity	22	Sliding member
112	Steering wheel	221	Bracket
				12	Support arm	222	Pulley wheel
121	Support arm counterweight	30	Pallet fork
				122	Bearing wheel	40	Portal driving piece

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, descriptions such as "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a small-sized forklift 100, including:

the motorcycle comprises a motorcycle body 10, wherein the motorcycle body 10 comprises a frame 11, the frame 11 is movably arranged, two ends of the frame 11 are respectively connected with two support arms 12, the two support arms 12 are oppositely arranged and form an installation space 13 with the frame 11 in an enclosing manner;

a mast 20, the mast 20 being movably provided in the mounting space 13 in a front-rear direction of the vehicle body 10 so as to move closer to or away from the frame 11, the mast 20 being provided to extend in a height direction of the vehicle body 10; and

and the fork 30 is arranged on the portal frame 20 in a lifting manner, and is positioned on one side of the portal frame 20 departing from the frame 11.

The small-volume forklift 100 according to the technical scheme of the invention comprises a body 10, a mast 20 and a pallet fork 30, wherein the small-volume forklift 100 is only used for reducing the volume of the forklift, but the size of the forklift is not particularly limited. The vehicle body 10 comprises a movable vehicle frame 11, wherein two ends of the vehicle frame 11 are respectively provided with a support arm 12, the two support arms 12 and the vehicle frame 11 enclose an installation space 13 for accommodating a portal 20 and a fork 30, the portal 20 can move back and forth in the installation space 13 relative to the vehicle frame 11 to drive the fork 30 to extend out of the installation space 13 to fork goods, or drive the fork 30 to retract into the installation space 13 to reduce the overall size of the small-size forklift 100 during operation.

When the small-volume forklift 100 moves, the mast 20 drives the fork 30 to retract into the installation space 13, the two support arms 12 of the forklift body 10 and the fork 30 are positioned on the same side of the mast 20, namely the forklift body 10 and the fork 30 are positioned on the same side of the mast 20, and compared with the layout that the forklift body 10 and the fork 30 are respectively arranged on two sides of the mast 20, the layout of the small-volume forklift 100 can obviously reduce the overall volume of the small-volume forklift 100, so that a roadway space with a narrow width can be arranged, and the storage capacity of a warehouse is improved.

The mast 20 extends along the height direction of the small-sized forklift 100, the forks 30 are liftably disposed on the mast 20, the mast 20 is further provided with a fork driving member (not shown) for driving the forks 30 to ascend and descend, and the fork driving member may be a hydraulic cylinder, an air cylinder or an electric motor, which is not limited herein.

When the small-volume forklift 100 is unloaded, the door frame 20 and the fork 30 retract into the installation space 13, the storage occupation space of the small-volume forklift 100 is determined by the size of the forklift body 10, compared with the storage space occupied by the door frame 20 and the fork 30 in the existing small-volume forklift 100, the small-volume forklift 100 with smaller space occupancy rate can be designed to have a narrower roadway space for the small-volume forklift 100 to run and steer, thereby increasing the storage space of goods, improving the storage capacity and reducing the storage cost.

In order to ensure the counterweight balance of the small-volume forklift 100, a counterweight block is arranged in the forklift body 10 to balance the gravity of the fork 30 and the goods, so that the small-volume forklift 100 is prevented from overturning forwards.

When the small-sized forklift 100 picks up goods, the forks 30 descend to the bottom, and the mast 20 moves forward in the installation space 13 away from the frame 11, so as to drive the forks 30 to extend out of the installation space 13 to pick up the goods. After the fork 30 forks the goods, the goods are driven to rise. When the fork 30 drives the goods to be lifted to a certain height, the door frame 20 moves backwards in the mounting space 13 close to the frame 11, so as to drive the fork 30 with the goods to retract into the mounting space 13, and a goods taking process is realized.

Referring to fig. 1 to 4, in an embodiment of the present invention, the frame 11 includes:

the frame weight 111 is provided with two support arms 12 connected to two ends of the frame weight 111, a mounting cavity 1111 is formed inside the frame weight 111, and a steering wheel 112 is arranged at the bottom of the frame weight 111; and

steering wheel driving piece (not marked), steering wheel driving piece locates in installation cavity 1111, steering wheel driving piece's output wears to locate frame weight 111, and with steering wheel 112 transmission is connected, in order to drive steering wheel 112 rotates.

In the technical solution of an embodiment of the present invention, when the supporting arm 12, the fork 30 and the frame 11 are located on the same side of the frame 11, in order to balance the overall weight of the vehicle body 10 and prevent the small-sized forklift 100 from tipping forward due to the overweight of the cargo, the frame 11 includes a frame weight 111, a plurality of counterweights are installed in the frame weight 111, and the counterweights may be made of cast iron, concrete or polyvinyl chloride (PVC), and the material of the counterweights is not limited herein.

The bottom of the frame 11 is provided with a steering wheel 112, and a steering wheel driving member is used for driving the steering wheel 112 to rotate so as to drive the frame 11 to move. The number of the steering wheels 112 may be one, or may be two, three, or several, and the number of the steering wheels 112 is not limited herein.

The total weight of balancing weight is customized according to little volume fork truck 100 designing requirement, in order to guarantee the holistic stability of little volume fork truck 100, be fixed in frame counterweight 111 inside with the balancing weight usually, when needs increase little volume fork truck 100 balancing weight with the goods that fork over-loaded temporarily, can pack into installation cavity 1111 with a plurality of balancing weights in, with the whole weight that increases frame counterweight 111, thereby the counter weight that increases frame 11 is with the goods that fork over-loaded.

When the forks 30 lift the load, it is ensured that the center of gravity of the entire truck falls between the frame 11 and the mast 20, thereby preventing the small-sized forklift 100 from tipping toward the side of the mast 20 on which the forks 30 are provided. The total mass of the counterweight of the small-volume forklift 100 can be comprehensively optimized according to the upper limit of the cargo weight and the lifting height of the portal frame 20 so as to avoid the small-volume forklift 100 from overturning in the goods taking process. The arrangement of the frame weight 111 improves the structural stability of the small-size forklift 100 during operation.

Referring to fig. 1 to 4, in an embodiment of the present invention, the support arm 12 includes:

a boom weight 121, one end of the boom weight 121 being connected to an end of the frame weight 111;

and the bearing wheel 122 is arranged at the bottom of the support arm counterweight member 121.

In the technical scheme of the embodiment of the invention, the two ends of the frame weight 111 are connected with the arm weight 121, and the arm weight 121 is used for balancing the weight of the left side and the right side of the vehicle body 10, so that the phenomenon that when the small-volume forklift 100 moves or turns with goods, the weight of the small-volume forklift 100 is too large in the front and the back, the weights of the two sides are too light, and the small-volume forklift 100 overturns towards the left side and the right side is avoided.

Meanwhile, in the process that the small-volume forklift 100 forks to take goods and moves the fork 30 upwards, the fork 30 and the support arm weight part 121 are respectively located on the front side and the rear side of the portal frame 20, and the support arm weight part 121 can be used for assisting the frame weight part 111 to balance weight, so that the service life of the steering wheel 112 is prevented from being influenced by the overweight of the frame weight part 111.

The bearing wheel 122 at the bottom of the arm weight 121 can share the pressure on the steering wheel 112, and the service life of the steering wheel 112 is prolonged. The number of the bearing wheels 122 may be one or several, and the number of the bearing wheels 122 is not limited herein.

A plurality of balancing weights are installed in the support arm counterweight 121, and the balancing weights may be made of cast iron, concrete, or polyvinyl chloride (PVC), and the material of the balancing weights is not limited herein. The arrangement of the support arm counterweight 121 can increase the overall mass of the forklift body 10 and the mass of the forklift body uniformly distributed, and improve the stability of the structure when the forklift 100 with small volume runs.

Referring to fig. 1 to 4, in an embodiment of the present invention, the load bearing wheel 122 is disposed at an end of the arm weight 121 away from the frame 11.

In the solution of an embodiment of the present invention, the load-bearing wheel 122 is disposed at an end of the boom weight 121 far from the frame 11, and at this time, the center of gravity of the small-volume forklift 100 falls within a projection area formed by the connection of the steering wheel 112 and the two load-bearing wheels 122 located at the end of the boom weight 121. In the process that the fork 30 forks the goods to rise, the gravity center of the small-volume forklift 100 with the goods is still in the projection area through the arrangement of the support arm counterweight 121 and the counterweight blocks in the frame counterweight 111, so that the small-volume forklift 100 is prevented from overturning forwards. When the load wheel 122 is provided at the end of the arm weight 121, the stability of the structure of the small-sized forklift 100 can be improved.

In order to further improve the structural stability of the small-sized forklift 100, when the number of the steering wheels 112 is one, the steering wheels 112 may be disposed in the middle of the two ends of the frame weight 111 to form a stable supporting structure with the two load wheels 122.

Referring to fig. 1 to 4, in an embodiment of the present invention, the small-sized forklift 100 further includes a mast driving member 40, the mast driving member 40 is disposed on the frame weight 111, and a movable end of the mast driving member 40 is connected to the mast 20 to drive the mast 20 to approach or move away from the frame 11;

the bottom of the door frame 20 is provided with a roller 21.

In one embodiment of the present invention, the gantry drive member 40 can be a hydraulic cylinder, an air cylinder, or a motor, and the gantry drive member 40 is not limited thereto. The mast drive 40 may drive the mast 20 to move within the mounting space 13 to move toward or away from the frame 11. Thereby causing the forks 30 to extend or retract into the mounting space 13. Due to the design of the door frame driving part 40, the whole volume of the forklift 100 with small volume is reduced, and the storage capacity is improved.

The bottom of the gantry 20 is provided with rollers 21, and the number of the rollers 21 may be one, two or several, and the number of the rollers 21 is not limited herein. The roller 21 can distribute the pressure on the steering wheel 112 and the load wheel 122 to prolong the service life of the steering wheel 112 and the load wheel 122.

Referring to fig. 1 to 4, in an embodiment of the present invention, the mounting cavity 1111 penetrates to a surface of the frame weight 111 toward a side of the gantry 20, and a side of the gantry driving member 40 facing away from the gantry 20 is inserted into an inner wall of the mounting cavity 1111.

In the solution of the embodiment of the present invention, the side of the gantry driving component 40 facing away from the gantry 20 is inserted into the inner wall of the mounting cavity 1111, so that the overall volume of the vehicle body 10 can be reduced compared to the side directly provided on the surface of the frame weight 111. The installation cavity 1111 is uncovered setting towards one side of portal 20, makes installation cavity 1111 can hold portal 20's partial structure to further reduce the whole volume of automobile body 10, with the improvement storage capacity.

Referring to fig. 1 to 4, in an embodiment of the present invention, two sides of the gantry 20 are slidably connected to the two arms 12, respectively.

In the technical scheme of the embodiment of the invention, two sides of the portal frame 20 are respectively connected with the two support arms 12 in a sliding manner so as to improve the stability of the structure of the portal frame 20, and the support arms 12 play a role in guiding and auxiliary supporting, so that the portal frame 20 can be ensured to move back and forth only in the installation space 13, and the phenomenon that the fork 30 is positioned inaccurately due to lateral movement in the left and right directions in the moving process is avoided. Meanwhile, the portal 20 is connected with the support arm 12 in a sliding mode, the upper load limit of the portal 20 can be optimized, the cooperation between the portal 20 and the forklift body 10 is more stable, and the structural stability of the forklift 100 with small size is improved.

Referring to fig. 1 to 4, in an embodiment of the present invention, a sliding slot 123 is provided on a side of the arm 12 facing the gantry 20, a sliding member 22 is provided on a side of the gantry 20 facing the arm 12, and the sliding member 22 can slide in the sliding slot 123.

In the technical solution of an embodiment of the present invention, one end of the sliding member 22 is disposed on one side of the door frame 20 facing the arm 12, and the other end of the sliding member 22 is inserted into the sliding groove 123 and can slide in the sliding groove 123. The design of the sliding member 22 can reduce the frictional resistance between the mast 20 and the arm 12, so that the mast 20 can slide more smoothly, and the stability of the internal structure of the small-sized forklift 100 is improved.

Referring to fig. 1 to 4, in an embodiment of the present invention, the sliding member 22 includes:

one end of the bracket 221 is connected with the door frame 20, a pulley 222 is arranged on one side of the bracket 221, which is far away from the door frame 20, and the pulley 222 is inserted into the chute 123;

the peripheral surface of the pulley 222 abuts against the side wall of the chute 123.

In the technical solution of an embodiment of the present invention, one end of the bracket 221 is connected to the door frame 20, one end of the bracket 221 away from the door frame 20 is provided with a pulley 222, and the pulley 222 is inserted into the sliding groove 123 and can slide in the sliding groove 123. The circumferential surface of the pulley 222 abuts against the side wall of the chute 123, so that the shaking of the gantry 20 can be avoided, and the stability of the structure of the small-size forklift 100 during operation is improved.

Two brackets 221 are arranged on two sides of the portal frame 20, and in order to further improve the stability of the portal frame 20 during movement, the two brackets 221 can be connected, so that the stress and the counterweight between the portal frame 20 and the truck body 10 are more uniform, and the stability of the structure of the small-volume forklift 100 is further improved.

In an embodiment of the present invention, the small-volume forklift 100 further includes a remote interaction module (not shown) for remotely controlling the operation of the small-volume forklift 100.

In the technical scheme of the embodiment of the invention, the remote interaction module is arranged, so that the small-volume forklift 100 can operate through remote control, and unmanned driving at the small-volume forklift 100 end is realized. Unmanned small-size fork truck 100 can omit the artifical tiller design of current small-size fork truck 100 to remote control handle replaces artifical tiller, further reduces small-size fork truck 100's whole volume, and the reduction space occupies, has improved the storage capacity, makes small-size fork truck 100 be applicable to narrower tunnel.

Simultaneously, little volume fork truck 100 with remote interaction module can get the thing according to the route of marcing of procedure setting, realizes autopilot through the procedure, has reduced staff's the amount of labour, has improved the conveying efficiency.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A small-volume forklift, comprising:

the door frame is movably arranged in the mounting space along the front-back direction of the vehicle body so as to be close to or far away from the vehicle frame, and the door frame extends along the height direction of the vehicle body; and

2. A low-profile forklift as claimed in claim 1, wherein said frame comprises:

3. A low-volume forklift as claimed in claim 2, wherein said boom includes:

4. A low-profile forklift as claimed in claim 3, wherein said load wheels are provided at an end of said boom weights remote from said frame.

5. The small volume forklift of claim 2, further comprising a mast drive member provided to said frame weight member, a free end of said mast drive member being connected to said mast for driving said mast toward or away from said frame;

and rollers are arranged at the bottom of the portal frame.

6. A low profile lift truck as claimed in claim 5, wherein said mounting cavity is open to a surface of said frame counterweight on a side of said mast, and a side of said mast drive member facing away from said mast is inset on an inner wall of said mounting cavity.

7. A low-profile forklift truck as claimed in claim 1, wherein said mast is slidably connected on either side to said arms.

8. A low-profile forklift as claimed in claim 7, wherein said arm has a runner on a side thereof facing said mast, and said mast has a slider on a side thereof facing said arm, said slider being slidable in said runner.

9. A low-volume forklift as claimed in claim 8, wherein said slide comprises:

10. A small volume forklift as claimed in any one of claims 1 to 9, further comprising a remote interaction module for remotely controlling the operation of the small volume forklift.