Electric carrier with lifting limiting function

Abstract

The utility model relates to the technical field of forklifts, in particular to an electric truck with a lifting limiting function. Comprising two parallel pallet forks, a frame arranged at one ends of the pallet forks, a hydraulic assembly arranged on one side of the frame, an operation assembly arranged above the hydraulic assembly and driving wheels arranged below the hydraulic assembly, and further comprises a power assembly arranged on the other side of the frame, and the lifting limiting assembly is arranged at the bottom end of the frame and is used for stopping the hydraulic assembly from lifting. The electric carrier with the lifting limiting function has the advantages of being long in service life, capable of controlling the forklift quickly and accurately, simple in structure, convenient to disassemble and assemble, easy to operate and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of forklifts, in particular to an electric pallet truck with a lifting limit. Background Art

[0002] A forklift is an industrial handling vehicle, referring to various wheeled handling vehicles for loading, unloading, stacking, and short-distance transportation operations of palletized goods.

[0003] Chinese Patent CN110357005B discloses a driving system of an electric pallet truck with a lifting limit and an automatic limit electric forklift. The driving system includes a driving base and driving wheels arranged below the driving base. A bearing structure is provided on the upper part of the driving base for connecting with the vehicle body of the automatic limit electric forklift. It also includes a first driving motor and a handle rod. A resistance strain pressure sensor is provided at the bottom end of the handle rod, and the lower part of the resistance strain pressure sensor is hinged and arranged on the driving base. After the handle rod is pulled, the resistance strain pressure sensor converts the pulling force into an electric signal and controls the output power of the first driving motor. By introducing the resistance strain pressure sensor, the pulling force of the worker on the handle rod is converted into an electric signal for adjusting the output power of the first driving motor, realizing the adjustment of the output power of the driving system at different motion stages of the automatic limit electric forklift, and improving the utilization efficiency of power.

[0004] However, this technical solution controls the start, stop, lifting, and lowering of the forklift manually, and the control is not precise enough. There is a high possibility of operation errors in manual operation. Moreover, this solution does not have a limit mechanism, which may cause the forklift to fail to stop rising in time, making the control inconvenient, resulting in damage to the forklift and affecting its service life. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an electric pallet truck with a lifting limit for the deficiencies of the prior art. By using a lifting limit component to control the rising of the hydraulic component, the function of protecting the forklift is realized, and the problem of inconvenient lifting control of the forklift caused by the lack of a limit mechanism in the prior art is solved.

[0006] To achieve the above purpose, the utility model provides the following technical solution:

[0007] An electric pallet truck with a lifting limit includes: two parallel forks, a vehicle frame arranged at one end of the forks, a hydraulic component arranged on one side of the vehicle frame, an operation component arranged above the hydraulic component, and driving wheels arranged below the hydraulic component. It is characterized in that it further includes a lifting limit component arranged at the bottom end of the vehicle frame for limiting the rising of the forks.

[0008] As an improvement, the hydraulic component includes:

[0009] The oil cylinder is arranged inside the vehicle frame;

[0010] The connecting seat is arranged below the oil cylinder;

[0011] The driving wheel seat is arranged below the connecting seat; and

[0012] The swing rods, two groups of swing rods are arranged on both sides of the connecting seat, and one end of each swing rod is hinged to the connecting seat.

[0013] As an improvement, the other end of the swing rod is fixedly connected to the connecting shaft of the vehicle frame, and the lifting limit component is arranged below the connecting shaft.

[0014] As an improvement, an extending block for abutting against the lifting limit component is arranged at one end of the swing rod.

[0015] As an improvement, the lifting limit component includes: a mounting seat fixedly connected to the vehicle frame and a limiting member fixedly connected to the mounting seat.

[0016] As an improvement, the limiting member is a position sensor.

[0017] As an improvement, the limiting member is arranged opposite to the extending block.

[0018] As an improvement, the operating component includes: a connecting plate detachably connected to the oil cylinder, a receiving seat connected to the connecting plate, and a handle connected to the receiving seat.

[0019] As an improvement, a power component is further included and arranged on one side of the vehicle frame.

[0020] As an improvement, the power component includes: a driving power source connected to the vehicle frame and a controller arranged on one side of the driving power source.

[0021] The beneficial effects of the present utility model are as follows:

[0022] (1) By respectively installing the power component and the hydraulic component on both sides of the vehicle frame, the present utility model ensures the compactness of the overall structure of the forklift, reduces the floor area of the forklift, saves space, and is also convenient for disassembly and assembly.

[0023] (2) The present utility model automatically senses the lifting process of the forklift forks through the limiting member in the lifting limit component, and controls the lifting oil cylinder to stop operating through signal transmission, achieving the purpose of lifting limit, with a simple structure.

[0024] (3) By connecting the handle to the oil cylinder detachably through the receiving seat, the present utility model is convenient for disassembly and transportation.

[0025] In summary, the utility model has the advantages of long service life, being able to quickly and accurately control a forklift, simple structure, convenient disassembly and assembly, and simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0027] Figure 2 is Figure 1 an enlarged view of part A of

[0028] Figure 3 is a schematic diagram of the installation of the lifting limit component of the utility model;

[0029] Figure 4 is Figure 3 an enlarged view of part B of

[0030] Figure 5 is a side view of the utility model;

[0031] Figure 6 is Figure 5 an enlarged view of part C of

[0032] Reference numerals: 1 - fork; 2 - vehicle frame; 21 - connecting shaft; 3 - hydraulic component; 31 - extending block; 32 - oil cylinder; 33 - connecting seat; 34 - driving wheel seat; 35 - swing rod; 4 - operating component; 41 - receiving seat; 42 - handle; 5 - driving wheel; 6 - power component; 61 - driving power supply; 62 - controller; 7 - lifting limit component; 71 - mounting seat; 72 - limiting member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0034] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0035] Embodiment

[0036] As Figures 1-6 shown, this embodiment provides an electric forklift with a lifting limit, including: two parallel forks 1, a vehicle frame 2 provided at one end of the forks 1, a hydraulic component 3 provided on one side of the vehicle frame 2, an operation component 4 provided above the hydraulic component 3, and a driving wheel 5 provided below the hydraulic component 3. It further includes: a power component 6 provided on the other side of the vehicle frame 2, and a lifting limit component 7 provided at the bottom end of the vehicle frame 2 for blocking the upward movement of the forks 1. The maximum lifting height of the forks 1 is controlled by the lifting limit component 7 to avoid damage to the forklift caused by excessive height, ensuring the service life of the forklift. Moreover, the power component 6 and the hydraulic component 3 are respectively provided on both sides of the vehicle frame 2, ensuring the compactness of the overall structure of the forklift, making the floor area of the forklift small, saving space, and being convenient for disassembly and assembly.

[0037] Among them, the lifting limit component 7 includes: a mounting seat 71 fixedly connected to the vehicle frame 2 and a limiting member 72 fixedly connected to the mounting seat 71. The limiting member 72 is preferably a position sensor.

[0038] At the same time, the limiting member 72 is disposed opposite to the protruding block 31 on the hydraulic component 3. When the forks 1 rise to a certain height and the protruding block 31 rotates and touches the limiting member 72, a signal is sent to stop the lifting action of the forks 1, thereby limiting the lifting height of the forks 1, avoiding interference with other parts caused by continuous lifting of the forks, and thus achieving the limiting effect, which is convenient to use.

[0039] In this embodiment, the hydraulic component 3 includes: an oil cylinder 32 disposed within the vehicle frame 2, a connecting seat 33 disposed below the oil cylinder 32, a driving wheel seat 34 disposed below the connecting seat 33, and swing rods 35 respectively hinged on both sides of the connecting seat 33. The oil cylinder 32 is disposed between the vehicle frame 2 and the driving wheel 5, and the operating component 4 is disposed on the oil cylinder 32. The lifting of the forklift forks 1 is controlled by the oil cylinder 32. The structure of the hydraulic component 3 is simple, convenient for disassembly and assembly, and has a low cost.

[0040] In this embodiment, the oil cylinder 32 outputs power through a gear pump at its bottom to drive the lifting of the oil cylinder 32.

[0041] In this embodiment, the other end of the swing rod 35 is fixedly connected to the connecting shaft 21 of the vehicle frame 2, that is, one end of the swing rod 35 rises and falls together with the connecting shaft 21, and the other end rotates around the hinge point on the connecting seat 33. When the forklift forks are lifted to a certain height, the protruding block 31 touches the limiting member 72, and the limiting member 72 emits a signal to stop the lifting of the forklift forks.

[0042] In this embodiment, the protruding block 31 is disposed at one end of the swing rod 35. Through the rotation of the swing rod 35, the protruding block 31 can slowly approach the limiting member 72. The limiting member 72 is a sensor. After the limiting member 72 approaches the sensor, the sensor emits a signal to stop the hydraulic component from operating.

[0043] Certainly, the operating component 4 includes: a connecting plate 43 detachably connected to the oil cylinder 32, a receiving seat 41 connected to the connecting plate 43, and a handle 42 fixedly connected to the receiving seat 41, enabling the handle 42 to be quickly disassembled.

[0044] Meanwhile, the power component 6 includes: a driving power source 61 fixedly connected to the vehicle frame 2 and a controller 62 disposed on one side of the driving power source 61. The driving power source 61 provides power, and then the lifting of the forklift is controlled through the controller 62. The combination of the two makes the working efficiency of the forklift higher. The driving power source 61 is preferably a lithium battery because the lithium battery has a high energy density, can provide more electric energy, has a long service life, does not need to be frequently replaced, can be charged and reused, is convenient to use, and has a small volume, light weight, low use cost, and strong adaptability.

[0045] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An electric transport vehicle with lifting limit, comprising: Two parallel forks, a frame arranged at one end of the forks, a hydraulic component arranged on one side of the frame, an operating component arranged above the hydraulic component and a driving wheel arranged below the hydraulic component, characterized in that it also includes: a lifting limit component arranged at the bottom end of the frame for limiting the rise of the forks.

2. The electric transport vehicle with lifting limit according to claim 1, characterized in that: The hydraulic assembly comprises: An oil cylinder is arranged in the frame; A connecting seat, arranged below the oil cylinder; A driving wheel seat, arranged below the connecting seat; and Swing rods, two groups of swing rods are arranged on both sides of the connecting seat, and one end is hinged to the connecting seat.

3. The electric transport vehicle with lifting limit according to claim 2, characterized in that: The other end of the swing rod is fixedly connected to the connecting shaft of the frame, and the lifting limit assembly is arranged below the connecting shaft.

4. The electric transport vehicle with lifting limit according to claim 2, characterized in that: One end of the swing rod is provided with a protruding block for abutting against the lifting limit assembly.

5. The electric transport vehicle with lifting limit according to claim 4, characterized in that: The lifting limit assembly comprises: a mounting seat fixedly connected to the frame and a limit member fixedly connected to the mounting seat.

6. The electric transport vehicle with lifting limit according to claim 5, characterized in that: The limiting component is a position sensor.

7. The electric transport vehicle with lifting limit according to claim 5, characterized in that: The limiting member is arranged opposite to the extending block.

8. The electric transport vehicle with lifting limit according to claim 4, characterized in that: The operating assembly comprises: a connecting plate detachably connected to the oil cylinder, a receiving seat connected to the connecting plate, and a handle connected to the receiving seat.

9. The electric transport vehicle with lifting limit according to claim 1, characterized in that: It also includes a power assembly arranged on one side of the frame.

10. The electric transport vehicle with lifting limit according to claim 9, characterized in that: The power assembly includes: a driving power supply connected to the frame and a controller arranged on one side of the driving power supply.

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