WO2024051055A1 - High-efficiency unmanned forklift - Google Patents

Abstract

A high-efficiency unmanned forklift (100), comprising a body (10) and a fork assembly (20). The body (10) has two supporting arms (11) arranged opposite to each other and a main part (13) that connects the two supporting arms (11). The two supporting arms (11) and the main part (13) define an accommodating space (15). Part of the fork assembly (20) is provided in the accommodating space (15). The fork assembly (20) comprises upper forks (21) and lower forks (23) which are arranged vertically. Arms of the upper forks (21) and the lower forks (23) all extend forwards from the accommodating space (15) and are all arranged in a liftable/lowerable manner.

Description

High efficiency unmanned forklift

This application claims priority to the Chinese patent application with application number 202222372041.6 filed on September 6, 2022, the entire content of which is incorporated into this application by reference.

Technical field

This application relates to the technical field of forklifts, and in particular to a high-efficiency unmanned forklift.

Background technique

At present, existing forklifts generally only have one set of forks for lifting the vehicle, which results in low transportation efficiency. In addition, in order to increase the load, the volume of the forklift body will be increased, resulting in a larger forklift size, which is not conducive to narrow lanes. transportation.

technical problem

The main purpose of this application is to provide a high-efficiency unmanned forklift, aiming to increase the transportation efficiency of the forklift and reduce the size of the forklift.

Technical solutions

In order to achieve the above purpose, this application proposes a high-efficiency unmanned forklift, including:

A vehicle body, the vehicle body has two support arms arranged oppositely and a main body portion connecting the two support arms, and the two support arms and the main body portion are enclosed to form an accommodation space; and

Fork assembly, part of the fork assembly is provided in the accommodation space, the fork assembly includes an upper fork and a lower fork arranged up and down, the fork arms of the upper fork and the lower fork They all extend forward from the accommodation space and can be raised and lowered.

In one embodiment, the fork assembly further includes a mast structure. The mast structure is provided in the accommodation space and connected to the two support arms. The upper fork and the lower fork are both It can be lifted and lowered on the door frame structure.

In one embodiment, the gantry structure includes:

Upper mast, the upper door is installed between the two support arms and connected with the two support arms. The fork arm of the upper cargo fork is elevatingly provided on the upper mast and moves forward from the upper mast. extension; and

Lower mast, the lower door is erected between the two support arms and located below the upper mast, the lower mast is connected to the two support arms, and the fork arm of the lower fork can be lifted and lowered. on the lower mast and extending forward from the lower mast.

In one embodiment, the upper mast is slidingly connected to the two support arms to drive the upper fork in and out of the accommodation space from the front opening of the accommodation space;

And/or, the lower mast is slidably connected to the two support arms to drive the lower fork in and out of the accommodation space from the front opening of the accommodation space.

In one embodiment, the upper mast extends from the accommodating space to above the vehicle body, so that the upper fork can be raised and lowered in and out of the accommodating space.

In one embodiment, the fork assembly is further provided with a shock absorbing mechanism, and the shock absorbing mechanism is provided on the upper mast and is drivingly connected to the upper fork.

In one embodiment, an escape groove is provided at the bottom of the fork arm of the upper fork, and the fork arm of the lower fork can enter and exit the escape groove.

In one embodiment, the high-efficiency unmanned forklift also includes:

A steering wheel assembly, the steering wheel assembly is provided on the main body part, the steering wheel of the steering wheel assembly is protrudingly provided on the bottom of the main body part and can rotate in all directions; and

Two load-bearing wheels, each of which is respectively provided on one of the support arms and protrudes from the bottom of the support arm. The load-bearing wheels can rotate with the steering wheel assembly to control the moving direction of the vehicle body.

In one embodiment, the high-efficiency unmanned forklift further includes two driving members, each of which is drivingly connected to one of the load-bearing wheels to drive the corresponding load-bearing wheel to rotate.

In one embodiment, the high-efficiency unmanned forklift further includes a counterweight module, and the counterweight module is provided on the vehicle body.

beneficial effects

The high-efficiency unmanned forklift of this application is equipped with two sets of cargo forks arranged up and down in the forklift, so that both sets of cargo forks can be lifted and lowered to simultaneously pick up and transport two pallets of goods, thereby improving the transportation of the unmanned forklift. Efficiency; at the same time, some fork components are accommodated in the accommodation space of the vehicle body, which can not only reduce the size of high-efficiency unmanned forklifts, but also reduce the size of unmanned forklifts to meet the transportation needs of more use environments; It can also move the center of gravity of the high-efficiency unmanned forklift backward to balance the load when the high-efficiency unmanned forklift is carrying goods, improve the load-carrying capacity of the unmanned forklift, and can transport heavier goods at the same time, further improving transportation efficiency.

Description of the drawings

In order to explain the embodiments of the present application or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without exerting creative efforts.

Figure 1 is a structural diagram of an embodiment of a high-efficiency unmanned forklift according to the present application;

Figure 2 is a structural diagram of the fork retraction on the high-efficiency unmanned forklift in Figure 1;

Figure 3 is a structural diagram of the lower fork retraction of the high-efficiency unmanned forklift in Figure 2;

Figure 4 is a structural diagram of the fork sinking on the high-efficiency unmanned forklift in Figure 3;

Figure 5 is a bottom view of the high-efficiency unmanned forklift in Figure 4;

Figure 6 is a structural diagram of the high-efficiency unmanned forklift in Figure 4 when the upper fork and lower fork are extended;

Figure 7 is a structural diagram of the upper mast and upper fork of the high-efficiency unmanned forklift fork assembly in Figure 1;

Figure 8 is a structural diagram of the lower mast and lower fork of the high-efficiency unmanned forklift fork assembly in Figure 1.

Explanation of reference numbers:

label	name	label	name
100	High efficiency unmanned forklift	251	Upper door frame
10	car body	2511	avoidance space
11	support arm	253	Lower mast
111	chute	2531	Main body of the mast
13	Main part	2533	sliding frame
15	accommodation space	255	roller
20	Fork assembly	27	Connector
twenty one	Load forks	30	Drive components
211	avoidance slot	31	steering wheel assembly
twenty three	lower fork	33	Carrying wheel
25	Gantry structure	​	​

The realization of the purpose, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings.

Embodiments of the invention

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of this application are only used to explain the relationship between components in a specific posture (as shown in the drawings). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

In this application, unless otherwise clearly stated and limited, the terms "connection", "fixing", etc. should be understood in a broad sense. For example, "fixing" can be a fixed connection, a detachable connection, or an integral body; it can It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements or an interactive relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

In addition, descriptions such as "first", "second", etc. in this application are for descriptive purposes only and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions in various embodiments can be combined with each other, but it must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that such a combination of technical solutions does not exist. , nor is it within the scope of protection required by this application.

This application proposes a high-efficiency unmanned forklift 100.

Please refer to Figure 1. In some embodiments of the high-efficiency unmanned forklift 100 of the present application, the high-efficiency unmanned forklift 100 includes:

The vehicle body 10 has two opposite support arms 11 and a main body part 13 connecting the two support arms 11. The two support arms 11 and the main body part 13 enclose to form a receiving space 15; and

The fork assembly 20, part of the fork assembly 20 is provided in the accommodation space 15, the fork assembly 20 includes an upper fork 21 and a lower fork 23 arranged up and down, the upper fork 21 and the The fork arms of the forks 23 described below all extend forward from the accommodation space 15 and can be raised and lowered.

The high-efficiency unmanned forklift 100 proposed in this application can control the operation of the forklift with a manual remote control handle or directly set a control program in the forklift to operate autonomously. It does not need to set up a driving position and related driving components, etc., reducing space occupation, thereby reducing the area of the forklift body. . Specifically, the forklift includes a vehicle body 10 and a fork assembly 20. The bottom of the vehicle body 10 can be provided with a driving assembly 30 such as a driving wheel or a transmission crawler, so that the vehicle body 10 can be moved; the controller and the like are often provided in the vehicle body 10. And the remote communication component can be set up to communicate with the controller to receive external control signals so that the controller can control each component on the forklift to perform corresponding actions. Alternatively, a control program can be preset in the controller. When the forklift is started, it can run independently according to the control program. , without human control, positioning components, identification components, sensors and other devices can be installed on the forklift to communicate with the controller. Based on the signals recognized by different components, the controller executes corresponding control actions according to the preset program.

Further, the fork assembly 20 includes two sets of forks arranged one above the other. Both sets of forks can be lifted and lowered. It can be understood that when the forks pick up goods, the forks rise so that the goods are suspended in the air to move with the forklift. When the fork is placing goods, the fork descends so that the goods are placed on the placement surface. In this embodiment, two sets of forks are provided in the forklift, so that the upper fork 21 and the lower fork 23 can respectively pick up and transport a pallet of goods, so that the unmanned forklift can fork two pallets of goods at the same time, which improves the efficiency of the unmanned forklift. The transportation efficiency of the forklift achieves the purpose of high-efficiency transportation.

Furthermore, the vehicle body 10 includes two support arms 11 and a main body part 13. The two support arms 11 respectively extend forward from both sides of the main body part 13, thereby enclosing an accommodating space 15, and allowing some fork assemblies to 20 is arranged in the accommodation space 15. Such arrangement can reduce the volume of the high-efficiency unmanned forklift 100 and reduce the space occupation of the unmanned forklift, so that the unmanned forklift can be suitable for carrying goods in more environments; in addition, the fork Part of the component 20 is located in the vehicle body 10, which can move the overall center of gravity of the high-efficiency unmanned forklift 100 backward. This arrangement can balance the load when the unmanned forklift carries goods, and prevent the vehicle body 10 from tilting up, so as to improve the efficiency of the unmanned forklift. The load capacity of the forklift can transport heavier goods at the same time, further improving the transportation efficiency of unmanned forklifts.

It should be noted that in this embodiment, in order to make both the upper fork 21 and the lower fork 23 liftable, the upper fork 21 and the lower fork 23 may be directly connected to the support arm 11 by sliding, so that the upper fork 21 The lower fork 23 can be raised and lowered. At this time, the height of the support arm 11 needs to be set correspondingly according to the rising height of the upper fork 21; it is also possible to set the mast structure 25 for installing the fork in the following embodiment, which is not done here. Repeat.

Therefore, it can be understood that the high-efficiency unmanned forklift 100 of the present application is equipped with two sets of cargo forks arranged up and down in the forklift, so that both sets of cargo forks can be lifted and lowered to simultaneously fork and transport two pallets of goods. Thereby improving the transportation efficiency of the unmanned forklift; at the same time, some of the fork assemblies 20 are accommodated in the accommodation space 15 of the vehicle body 10, which can not only reduce the volume of the high-efficiency unmanned forklift 100, but also reduce the size of the unmanned forklift. Small, meeting the transportation needs of more use environments; it can also move the center of gravity of the high-efficiency unmanned forklift 100 backward to balance the load when the high-efficiency unmanned forklift 100 is carrying goods, improve the load-carrying capacity of the unmanned forklift, and can simultaneously Consign heavier goods to further improve transportation efficiency.

Please refer to Figure 1. In some embodiments of the high-efficiency unmanned forklift 100 of the present application, the fork assembly 20 also includes a mast structure 25. The mast structure 25 is disposed in the accommodation space 15 and connected with both sides. The support arm 11 is connected, and the upper fork 21 and the lower fork 23 are both elevatingly provided on the mast structure 25 .

In this embodiment, the fork assembly 20 includes a mast structure 25. The mast structure 25 is arranged in the accommodation space 15, so that both the upper fork 21 and the lower fork 23 can be lifted and lowered on the mast structure 25. The sliding connection method between the cargo fork 21 and the lower cargo fork 23 and the mast structure 25 can be provided with driving parts such as motors or cylinders, and provided with a guide rail slider structure, or can be a screw connection structure or a belt drive structure, etc. transmission connection, so that the upper fork 21 and the lower fork 23 can be raised and lowered on the mast structure 25. Among them, the lifting structures of the upper fork 21 and the lower fork 23 mostly adopt independent structures, that is, independent lifting structures are respectively provided to drive the The upper fork 21 and the lower fork 23 lift.

The arrangement of the mast structure 25 eliminates the need for the support arm 11 of the vehicle body 10 to extend to the rising height of the upper fork 21 , thereby reducing the processing difficulty of the vehicle body 10 and reducing the volume of the vehicle body 10 ; in addition, the mast structure 25 can be used as a counterweight , so that the center of gravity of the high-efficiency unmanned forklift 100 is further back and more stable, so that the high-efficiency unmanned forklift 100 can carry heavier goods and the transportation process is more stable.

In some embodiments, a driving assembly 30 such as a wheel hub structure is provided at the bottom of the vehicle body 10 to make the vehicle body 10 moveable. The driving assembly 30 includes a steering wheel assembly 31 and two load-bearing wheels 33 . The steering wheel assembly 31 is disposed on the main body. On the body 13, two load-bearing wheels 33 are respectively provided on the two support arms 11, and are located at one end of the support arm 11 away from the main body 13, so that the support force of the driving assembly 30 on the vehicle body 10 is balanced, ensuring high efficiency. The stability of the unmanned forklift 100; further, the mast structure 25 is always located in the area between the steering wheel assembly 31 and the load-bearing wheel 33, so that the mast structure 25 is arranged so that the center of gravity of the unmanned forklift is closer to the vehicle body. side, so as to make the transportation process of the high-efficiency unmanned forklift 100 more stable and reduce the risk of the high-efficiency unmanned forklift 100 overturning due to unstable center of gravity when carrying goods.

Please refer to Figures 1 and 2. In some embodiments of the high-efficiency unmanned forklift 100 of the present application, the mast structure 25 includes:

An upper mast 251 is provided between the two support arms 11 and is connected to the two support arms 11 . The fork arm of the upper cargo fork 21 is elevatingly disposed on the upper mast 251 , and Extends forward from the upper mast 251; and

Lower mast 253. The lower mast 253 is located between the two support arms 11 and below the upper mast 251. The lower mast 253 is connected to the two support arms 11. The lower fork The fork arm 23 is elevatingly provided on the lower mast 253 and extends forward from the lower mast 253 .

In this embodiment, the mast structure 25 includes a split upper mast 251 and a lower mast 253. The upper mast 251 and the lower mast 253 are individually connected and fixed to the vehicle body 10, and the upper mast 251 is used to carry the upper fork. 21. The lower mast 253 is used to carry the lower fork 23. This arrangement can prevent the mast structure 25 from carrying the load of the upper fork 21 and the lower fork 23 at the same time, so that the loads of the upper fork 21 and the lower fork 23 are respectively It is borne by different masts to reduce the risk of damage to the mast structure 25 .

1 to 3 , in some embodiments of the high-efficiency unmanned forklift 100 of the present application, the upper mast 251 is slidingly connected to the two support arms 11 to drive the upper fork 21 from the container. The front opening of the accommodation space 15 allows access to the accommodation space 15;

And/or, the lower mast 253 is slidably connected to the two support arms 11 to drive the lower fork 23 in and out of the accommodation space 15 from the front opening of the accommodation space 15 .

In this embodiment, at least one of the upper mast 251 and the lower mast 253 is slidably connected to the two support arms 11, so that at least one of the upper fork 21 and the lower fork 23 is disposed translatably in the housing. In the space 15, the goods can be forked and picked up without moving the vehicle body 10 when carrying the goods. In addition, when the upper fork 21 can be moved horizontally, the upper fork 21 can be raised and retreated after the upper fork 21 carries the goods, so as to avoid the action of the lower fork 23 and prevent the lower fork 23 from ascending when picking up the goods. The movement of the lower fork 23 is affected by interference between the fork 21 and the goods carried thereon and the surrounding environment; when the lower fork 23 can be moved horizontally, the lower fork 23 can be retracted to the accommodation space when the upper fork 21 picks up the goods. 15. It also avoids the movement of the upper fork 21 to prevent the upper and lower forks 23 from interfering with each other; and when the upper fork 21 and the lower fork 23 can be moved horizontally, the upper fork 21 can be retracted to the position when there is no need to carry goods. The accommodating space 15 protects the upper fork 21, and the lower fork 23 is retracted to the accommodating space 15 to protect the lower fork 23. When the upper fork 21 and the lower fork 23 are both retracted to the accommodating space 15, When the installation space is 15, it can reduce the overall size of the unmanned forklift and reduce the space occupied by the forklift.

Taking the upper door frame 251 as an example, it is slidable. In some embodiments, the surface of the support arm 11 facing the other support arm 11 is provided with a chute 111 , and the side of the upper door frame 251 facing the two support arms 11 is provided with a chute 111 such as The sliding part such as the slide block or the roller 255 is preferably the roller 255 to convert the sliding motion into the rolling of the roller 255, which can reduce the friction between the sliding process of the upper mast 251 and the support arm 11, reduce energy consumption, and make the upper fork 21 The panning is smoother. The sliding structure of the lower mast 253 may refer to the aforementioned implementation structure, or may be different from the aforementioned implementation. For example, the slide groove 111 is provided as a guide rail, and a corresponding slide block is provided to cooperate with the guide rail, which is not limited here.

Please refer to Figure 3. In some embodiments of the high-efficiency unmanned forklift 100 of the present application, the upper mast 251 extends from the accommodation space 15 to the top of the vehicle body 10, so that the upper fork 21 can Lift in and out of the accommodation space 15.

In this embodiment, the upper mast 251 extends from the accommodating space 15 toward the top of the vehicle body 10 so that the upper fork 21 can be raised and lowered in and out of the accommodating space 15. Such an arrangement can keep the upper fork 21 as far away from the lower fork 23 as possible. , to avoid the position of the lower fork 23 and improve the safety of use; and the upper fork 21 can meet the requirements for forking and placing goods at a higher position, improving the applicability.

In some embodiments of the high-efficiency unmanned forklift 100 of the present application, the fork assembly 20 is also provided with a shock-absorbing mechanism. The shock-absorbing mechanism is provided on the upper mast 251 and is drivingly connected to the upper fork 21 .

It can be understood that in the high-efficiency unmanned forklift 100 proposed in this application, the upper fork 21 needs to lift the goods to a certain height, and can be lifted to a position higher than the vehicle body 10. At this time, the vehicle body 10 carries the goods through potholes. When the road surface is uneven, the vehicle body 10 and the cargo tend to shake more severely, which can easily lead to the problem of the upper cargo fork 21 and the cargo falling due to loss of load. In this embodiment, a shock-absorbing mechanism is provided on the fork assembly 20 to provide buffering and absorb vibration energy for the upper fork 21, making the upper fork 21 more stable and preventing the upper fork 21 and the upper fork 21 from shaking when the vehicle body 10 vibrates. The cargo falls without load, improving the stability and safety of the transportation process.

The damping mechanism may be a cylinder damping mechanism, a spring damping mechanism, a cylinder damping mechanism or a combination of at least two damping mechanisms, which is not limited here.

Referring to FIGS. 4 to 6 , in some embodiments of the high-efficiency unmanned forklift 100 of the present application, an escape groove 211 is provided at the bottom of the fork arm of the upper fork 21 , and the fork arm of the lower fork 23 can enter and exit. The escape groove 211.

It can be understood that the high-efficiency unmanned forklift 100 proposed in this application improves the transportation efficiency of the unmanned forklift by setting up an upper and lower fork 21 and a lower fork 23 that can lift two pallets of goods at the same time. 21 and the lower fork 23 are arranged up and down. Such arrangement will cause the lower fork 23 to interfere with the descending height of the upper fork 21, causing the upper fork 21 to be unable to descend to the ground. In this embodiment, an escape groove 211 is provided at the bottom of the fork arm of the upper fork 21, and the escape groove 211 is directly facing the fork arm of the lower fork 23. With this arrangement, when the upper fork 21 is lowered, it can communicate with the lower fork through the escape groove 211. The cargo fork 23 avoids the position, so that the upper cargo fork 21 can be lowered to the ground to pick up the goods on the ground or place the goods smoothly on the ground. The setting of the avoidance groove 211 improves the movable distance and application range of the upper cargo fork 21 .

In some embodiments, when the upper fork 21 and the lower fork 23 are disposed on the upper mast 251 and the lower mast 253 respectively, the upper fork 21 can be configured as a structure including a connecting piece 27 and a fork arm. The connecting piece 27 The upper end of the fork is slidingly connected to the upper mast 251, and the fork arm is fixed at the lower end of the connector 27, so that the fork arm of the upper cargo fork 21 can sink to the front of the lower mast 253, and then the avoidance slot 211 allows loading of goods. The fork arms of fork 21 can sink to the ground.

In some embodiments, the lower mast 253 includes a mast body 2531 and a sliding frame 2533. The sliding frame 2533 is elevatingly provided on the mast body 2531 and is used to fix the lower fork 23. At this time, an opening is opened at the bottom of the upper mast 251. In the avoidance space 2511, when the lower mast 253 rises, the sliding frame 2533 enters the avoidance space 2511 to prevent the sliding frame 2533 from interfering with the rising height of the lower fork 23.

Please refer to Figure 5. In some embodiments of the high-efficiency unmanned forklift 100 of the present application, the high-efficiency unmanned forklift 100 also includes:

The steering wheel assembly 31 is provided on the main body part 13, and the steering wheel of the steering wheel assembly 31 is protruding from the bottom of the main body part 13; and

Two carrying wheels 33, each of which is respectively provided on one of the supporting arms 11 and protrudes from the bottom of the supporting arm 11. The carrying wheels 33 can rotate with the steering wheel assembly 31 to control all the functions. Describe the moving direction of the vehicle body 10.

It can be understood that the driving assembly 30 such as a wheel hub structure needs to be provided at the bottom of the vehicle body 10 to make the vehicle body 10 moveable. In this embodiment, the driving assembly 30 includes a steering wheel assembly 31 and two carrying wheels 33 , wherein the steering wheel assembly 31 is provided on the main body 13 , and the two carrying wheels 33 are respectively provided on the two supporting arms 11 and located on the support. The end of the arm 11 away from the main body 13 balances the support force of the driving assembly 30 on the vehicle body 10 and ensures the stability of the high-efficiency unmanned forklift 100 .

Specifically, the steering wheel assembly 31 includes a steering wheel, a steering structure and a driving structure. The driving structure is connected to the steering wheel to drive the steering wheel to rotate. The steering structure is connected to the steering wheel and the driving structure at the same time to drive the steering wheel and the driving structure to rotate and turn. Among them, the driving structure has many For the motor, a bracket is provided to fix the motor on the bracket, and the steering wheel is rotatably set on the bracket, so that the output shaft of the motor is connected to the steering wheel, and then the steering structure is connected to the bracket to drive the bracket to rotate to realize the steering of the steering wheel. The steering structure can Only a motor is provided, or a motor plus a gear transmission structure or a belt transmission structure can be provided. That is, in the high-efficiency unmanned forklift 100, the steering wheel drives the body 10 to drive and turn according to the route to transport the goods to a designated location. . At this time, the whole steering wheel assembly 31 can also be used as a counterweight, so that the center of gravity of the high-efficiency unmanned forklift 100 is rearward and more stable, so that the high-efficiency unmanned forklift 100 can carry heavier goods and the transportation process is more stable.

In some embodiments of the high-efficiency unmanned forklift 100 of the present application, the high-efficiency unmanned forklift 100 further includes two driving parts, each of which is drivingly connected to one of the load-bearing wheels 33 to drive the corresponding The carrying wheel 33 rotates.

In this embodiment, two driving parts are provided in the high-efficiency unmanned forklift 100. Each driving part is transmission connected with a carrying wheel 33 and is used to provide power for the rotation of the carrying wheel 33. With such an arrangement, the steering wheel and the two load-bearing wheels 33 in the driving assembly 30 are capable of self-rotating, and there is no need for the steering wheel assembly 31 to drive the entire vehicle to move alone. This allows the vehicle body 10 to move more smoothly and quickly, thereby improving transportation efficiency. Moreover, the setting of the driving parts can also be used as a counterweight, so that the center of gravity of the high-efficiency unmanned forklift 100 is closer to the side of the vehicle body 10 and is more stable, so that the high-efficiency unmanned forklift 100 can carry heavier goods and the transportation process is more stable. .

In some embodiments of the high-efficiency unmanned forklift 100 of the present application, the high-efficiency unmanned forklift 100 further includes a counterweight module, and the counterweight module is provided on the vehicle body 10 .

It can be understood that the high-efficiency unmanned forklift 100 proposed in this application is intended to enable the unmanned forklift to fork two pallets of goods at the same time. At this time, the high-efficiency unmanned forklift 100 has a higher load-bearing capacity to achieve the purpose of improving transportation efficiency; However, it is also necessary to prevent the vehicle body 10 from overloading and losing balance and overturning forward. In this embodiment, a counterweight structure is provided on the vehicle body 10 . The counterweight structure may be a counterweight block or other components of the unmanned forklift integrated into the vehicle body 10 , so that the center of gravity of the high-efficiency unmanned forklift 100 is close to the vehicle. The side of the body 10 is more stable, so that the high-efficiency unmanned forklift 100 can carry heavier goods and the carrying process is more stable.

In some embodiments, the counterweight structure is a counterweight block. In this case, multiple counterweight blocks can be provided and detachably connected to the vehicle body 10 , or a placement space can be provided on the vehicle body 10 for placement. Counterweight blocks; set in this way, a corresponding number of counterweight blocks can be placed on the vehicle body 10 according to the weight of the goods required to be transported by the high-efficiency unmanned forklift 100 to prevent the vehicle body 10 from losing balance and overturning forward, and improve the vehicle body 10 suitability and safety of use.

The above are only preferred embodiments of the present application, and do not limit the patent scope of the present application. Under the utility model concept of the present application, equivalent structural transformations made by using the contents of the description and drawings of the present application, or direct/indirect Application in other related technical fields is included in the scope of patent protection of this application.

Claims (10)

1. A high-efficiency unmanned forklift, including:

   A vehicle body, the vehicle body has two support arms arranged oppositely and a main body portion connecting the two support arms, and the two support arms and the main body portion are enclosed to form an accommodation space; and

   Fork assembly, part of the fork assembly is provided in the accommodation space, the fork assembly includes an upper fork and a lower fork arranged up and down, the fork arms of the upper fork and the lower fork They all extend forward from the accommodation space and can be raised and lowered.
2. The high-efficiency unmanned forklift of claim 1, wherein the fork assembly further includes a mast structure, the mast structure is disposed in the accommodation space and connected to the two support arms, and the upper Both the cargo fork and the lower cargo fork are elevatingly mounted on the mast structure.
3. The high-efficiency unmanned forklift as claimed in claim 2, wherein the mast structure includes:

   Upper mast, the upper door is installed between the two support arms and connected with the two support arms. The fork arm of the upper cargo fork is elevatingly provided on the upper mast and moves forward from the upper mast. extension; and

   Lower mast, the lower door is erected between the two support arms and located below the upper mast, the lower mast is connected to the two support arms, and the fork arm of the lower fork can be lifted and lowered. on the lower mast and extending forward from the lower mast.
4. The high-efficiency unmanned forklift of claim 3, wherein the upper mast is slidingly connected to the two support arms to drive the upper fork in and out of the accommodation space from the front opening of the accommodation space. ;

   And/or, the lower mast is slidably connected to the two support arms to drive the lower fork in and out of the accommodation space from the front opening of the accommodation space.
5. The high-efficiency unmanned forklift of claim 3, wherein the upper mast extends from the accommodating space to above the vehicle body, so that the upper fork can be lifted and lowered in and out of the accommodating space.
6. The high-efficiency unmanned forklift as claimed in claim 5, wherein the fork assembly is further provided with a shock absorbing mechanism, and the shock absorbing mechanism is provided on the upper mast and is drivingly connected to the upper fork.
7. The high-efficiency unmanned forklift of claim 1, wherein an escape groove is provided at the bottom of the fork arm of the upper fork, and the fork arm of the lower fork can enter and exit the escape groove.
8. The high-efficiency unmanned forklift as claimed in claim 1, wherein the high-efficiency unmanned forklift further includes:

   A steering wheel assembly, the steering wheel assembly is provided on the main body part, and the steering wheel of the steering wheel assembly is protrudingly provided on the bottom of the main body part; and

   Two load-bearing wheels, each of which is respectively provided on one of the support arms and protrudes from the bottom of the support arm. The load-bearing wheels can rotate with the steering wheel assembly to control the moving direction of the vehicle body.
9. The high-efficiency unmanned forklift as claimed in claim 8, wherein the high-efficiency unmanned forklift further includes two driving parts, each of the driving parts is provided on one of the support arms and is drivingly connected to one of the load-bearing wheels. , to drive the corresponding bearing wheel to rotate.
10. The high-efficiency unmanned forklift according to any one of claims 1 to 9, wherein the high-efficiency unmanned forklift further includes a counterweight module, and the counterweight module is provided on the vehicle body.