Electric pallet truck running device based on intelligent handle control

Abstract

The utility model relates to the technical field of pallet truck motion control, in particular to an electric pallet truck running device based on intelligent handle control, which can comprise a power supply, a power supply main switch, a controller and an intelligent handle, the intelligent handle comprises a key switch, a function switch group, a stepless speed regulation input unit, a display unit and a grounding end; according to the operation device, the intelligent handle is arranged to be connected with the controller, the electric pallet truck is driven and controlled through the controller, corresponding unit elements are prevented from being in a working state all the time so as not to be damaged, accurate control is achieved, the display unit is arranged to display various data information of the electric pallet truck, observation and regulation are facilitated, and the operation efficiency is improved. And the reliability and the safety of the electric pallet truck are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motion control of pallet trucks, and in particular to an electric pallet truck operating device based on intelligent handle control. Background Art

[0002] At present, the requirements for safe use of pallet trucks in the field of pallet trucks at home and abroad have been raised. The existing control method of pallet trucks is to power on the whole vehicle after the key switch is turned on, and the lifting, lowering, walking and other movement directions of the electric pallet truck are controlled by the handle; however, the electric pallet truck is in an unsafe state during the lifting, lowering and walking movements. For example, if the control button is always operated, the button is directly connected to the operating device, causing the pallet truck to be in operation all the time, which will damage the corresponding unit components; in the walking state, there is no distinction between the environmental state and the speed, and there is no difference in the control of the speed, which may lead to improper vehicle speed under special circumstances, posing certain safety hazards. Utility Model Content

[0003] In order to overcome the above technical problems, the utility model provides an electric pallet truck operating device based on intelligent handle control; the operating device connects the controller through the intelligent handle, thereby avoiding the corresponding unit components being in a working state all the time, realizing precise control, and a functional switch group is arranged in the intelligent handle to adjust different working modes of the pallet truck, realize the regulation of different functions, and improve the operating reliability and safety of the electric pallet truck.

[0004] In order to achieve the above-mentioned purpose, the utility model provides, on the one hand, an electric pallet truck operation device based on intelligent handle control, comprising:

[0005] power supply;

[0006] A main power switch, one end of which is connected to the positive electrode of the power supply;

[0007] A controller, wherein a first end of the controller is connected to the other end of the main power switch, and a second end of the controller is connected to the negative electrode of the power supply;

[0008] Smart handle, including:

[0009] A key switch, one end of which is connected to the first end of the controller;

[0010] A function switch group, one end of which is connected to the signal pin of the controller, and the other end of which is connected to the other end of the key switch group;

[0011] A stepless speed regulation input unit, one end of which is connected to the stepless speed regulation signal pin of the controller, and the other end of which is connected to the other end of the key switch group;

[0012] A display unit connected to the other end of the key switch;

[0013] A ground terminal is connected to the second terminal of the controller.

[0014] Preferably, the function switch group includes:

[0015] A lifting switch, one end of which is connected to the lifting signal pin of the controller, and the other end of which is connected to the other end of the key switch;

[0016] A down switch, one end of which is connected to a down signal pin of the controller, and the other end of which is connected to the other end of the key switch;

[0017] A safety switch, one end of which is connected to the safety signal pin of the controller, and the other end of which is connected to the other end of the key switch;

[0018] A slow switch, one end of which is connected to the slow control signal pin of the controller, and the other end of which is connected to the other end of the key switch;

[0019] A mode switch, one end of the slow switch is connected to the mode signal pin of the controller, and the other end of the mode switch is connected to the other end of the key switch;

[0020] A brake switch, one end of which is connected to a brake signal pin of the controller, and the other end of which is connected to the other end of the key switch.

[0021] Preferably, the safety switch further comprises a photoelectric switch, an OUT end of the photoelectric switch is connected to a safety signal pin of the controller, and a positive end of the photoelectric switch is connected to one end of the safety switch.

[0022] Preferably, the operating device further comprises a positioning module, which is arranged at the boundary of a preset working area and is used for cooperating with the photoelectric switch to determine whether the electric pallet truck is located in the working area when the electric pallet truck passes through the boundary.

[0023] Preferably, the controller includes a lifting unit, the positive terminal of the lifting unit is connected to the first end of the controller, and the OUT end of the lifting unit is connected to the lifting pin of the controller to receive a lifting signal to complete the fork lifting action of the electric pallet truck.

[0024] Preferably, the controller includes a descending unit, the positive terminal of the descending unit is connected to the positive terminal of the lifting unit, the negative terminal of the descending unit is connected to the negative terminal of the lifting unit, and the OUT terminal of the descending unit is connected to the descending pin of the controller to receive a descending signal to complete the lowering action of the fork of the electric pallet truck.

[0025] Preferably, the controller further comprises a driving unit, one end of which is connected to a driving pin of the controller to receive a driving signal to complete the walking action of the electric pallet truck.

[0026] Preferably, the driving unit further comprises a braking unit, one end of the braking unit is connected to the other end of the driving unit, and the other end of the braking unit is connected to a braking pin of the controller to receive a braking signal to complete the braking action of the electric pallet truck.

[0027] Through the above technical solution, the operating device is connected to the controller by setting an intelligent handle, and drives and controls the electric pallet truck through the controller, so as to avoid the corresponding unit components being in a working state all the time to avoid damage, realize precise control, and set a display unit to display various data information of the electric pallet truck for easy observation and control; at the same time, the operating device sets a functional switch group to determine the working area range of the electric pallet truck, cooperates with the driving unit, lifting unit and lowering unit of the controller, etc., to realize the function switching of the electric pallet truck, regulate the lifting, lowering and walking status of the electric pallet truck, reduce the probability of safety accidents, and improve the operating reliability and safety of the electric pallet truck. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural connection diagram of an electric pallet truck operating device based on intelligent handle control according to one embodiment of the utility model.

[0029] Description of Reference Numerals

[0030] 1. Power supply 2. Main power switch

[0031] 3. Controller 4. Smart handle

[0032] 5. Key switch 6. Function switch group

[0033] 7. Stepless speed regulation input unit 8. Display unit

[0034] 9. Ground terminal 10. Lifting switch

[0035] 11. Down switch 12. Safety switch

[0036] 13. Slow speed switch 14. Mode switch

[0037] 15. Brake switch 16. Photoelectric switch

[0038] 17. Positioning module 18. Lifting unit

[0039] 19. Descending unit 20. Driving unit

[0040] 21. Braking unit 301, first end of controller

[0041] 302. Second end of the controller 303. Signal pin

[0042] 304, lifting signal pin 305, descending signal pin

[0043] 306, safety switch pin 307, slow speed control signal

[0044] 308, mode signal pin 309, brake signal pin

[0045] 310, stepless speed regulation signal pin 311, lifting pin

[0046] 312, drop pin 313, drive pin

[0047] 314, brake pin DETAILED DESCRIPTION

[0048] The specific implementation of the embodiment of the utility model is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the utility model, and is not used to limit the embodiment of the utility model.

[0049] like Figure 1 The figure shows a structural connection diagram of an electric pallet truck operating device based on intelligent handle control according to an embodiment of the utility model. Figure 1In the embodiment, the operating device may include a power supply 1, a main power switch 2, a controller 3 and an intelligent handle 4; specifically, the positive pole of the power supply 1 is connected to one end of the main power switch 2, the first end 301 of the controller can be connected to the other end of the main power switch 2, and the second end 302 of the controller can be connected to the negative pole of the power supply 1; the intelligent handle 4 may include a key switch 5, a function switch group 6, a stepless speed regulation input unit 7, a display unit 8 and a grounding terminal 9, one end of the key switch 5 can be connected to the first end 301 of the controller, one end of the function switch group 6 can be connected to the signal pin 303 of the controller 3, the other end of the function switch group 5 can be connected to the other end of the key switch 5, one end of the stepless speed regulation input unit 7 can be connected to the signal pin of the controller 3, the other end of the stepless speed regulation input unit 7 can be connected to the other end of the key switch 5, the display unit 8 can be connected to the other end of the key switch 5, and the grounding terminal 9 can be connected to the second end 302 of the controller. The key switch 5 on the smart handle 4 controls the power on and off of the electric pallet truck; the function switch group 6 can adjust the functions of the electric pallet truck; the stepless speed regulation input unit 7 can control the running direction of the electric pallet truck by adjusting the front and rear directions, and control its running speed by adjusting the front and rear input angles; the display unit 8 can display the running speed, working time, braking status and fault information of the entire vehicle.

[0050] Through the above technical solution, the operating device is connected to the controller by setting an intelligent handle, and then drives and controls the electric pallet truck through the controller, so as to avoid the corresponding unit components being in a working state all the time to avoid damage, realize precise control, and set a display unit to display various data information of the electric pallet truck, which is convenient for observation and regulation.

[0051] exist Figure 1In order to realize the control and switching of multiple functional modes of the electric pallet truck, in one embodiment of the utility model, the functional switch group may include a lifting switch 10, a lowering switch 11, a safety switch 12, a slow switch 13, a mode switch 14 and a brake switch 15. One end of the lifting switch 10 can be connected to the lifting signal pin 304 of the controller 3, and the other end of the lifting switch 10 is connected to the other end of the key switch 5. One end of the lowering switch 11 can be connected to the lowering signal pin 305 of the controller 3, and the other end of the lowering switch 11 is connected to the other end of the key switch 5. The safety switch 13 is connected to the lowering signal pin 306 of the controller 3. One end of the safety switch 12 can be connected to the safety signal pin 306 of the controller 3, the other end of the safety switch 12 is connected to the other end of the key switch 5, one end of the slow switch 13 can be connected to the slow control signal pin 307 of the controller 3, the other end of the slow switch 13 is connected to the other end of the key switch 5, one end of the mode switch 14 can be connected to the mode signal pin 308 of the controller 3, one end of the mode switch 14 is connected to the other end of the key switch 5, one end of the brake switch 15 is connected to the brake signal pin 309 of the controller 3, and the other end of the brake switch 15 is connected to the other end of the key switch 5. The lifting switch 10 is used to control the fork of the electric pallet truck to lift, and the lowering switch 11 is used to control the fork of the electric pallet truck to lower. The safety switch 12 is used to limit the working mode of the electric pallet truck. The specific control method of the safety switch 12 for the working environment can be a variety of forms known to those skilled in the art. For example, within a certain working area, the electric pallet truck functions normally and can be lifted, lowered, traveled, and braked, while within the non-working area, the function of the electric pallet truck is limited and cannot be lifted, lowered, or traveled at high speed. The slow switch is used to limit the travel speed of the electric pallet truck. The specific control mode of the slow switch 13 for the working environment can be various forms known to those skilled in the art. For example, the slow switch 13 cooperates with the safety switch 12. In the non-working area, the electric pallet truck cannot be lifted or lowered, and can only travel and brake at a slow speed. A short press of the slow switch 13 will generate a short signal. At this time, the mode signal pin 308 of the controller 3 receives the short signal and controls the travel speed of the electric pallet truck to a preset speed. A long press of the slow switch 13 will generate a long signal. At this time, the mode signal pin 308 of the controller 3 receives the long signal and controls the travel speed of the electric pallet truck to half of the preset speed, thereby avoiding safety accidents. The mode switch 14 is used to switch the travel mode of the electric pallet truck. The specific control mode of the mode switch 14 for the working environment can be various forms known to those skilled in the art. For example, the mode switch can adjust the mode of the electric pallet truck. The mode is divided into a first mode and a second mode. The maximum travel speed of the electric pallet truck in different modes is different, thereby avoiding safety hazards to a certain extent.The brake switch 15 is used to brake the electric pallet truck during travel. The specific control method of the brake switch 15 for the working environment can be various forms known to those skilled in the art. For example, the braking conditions of the electric pallet trucks in different travel directions under the control of the stepless speed regulation input unit 7 are different. When braking during forward travel, that is, the whole vehicle moves toward the fork, the brake switch 15 is activated and immediately controls the execution of the whole vehicle braking action; and when braking during reverse travel, that is, the whole vehicle moves toward the operator, the brake switch 15 is activated and the electric pallet truck immediately completes the braking of the whole vehicle, and the whole vehicle shifts toward the fork, thereby preventing the cargo on the electric pallet truck from tilting and collapsing and crushing the operator, thereby improving the safety of the operation of the electric pallet truck.

[0052] exist Figure 1 In order to improve the sensitivity of the safety switch and improve the reliability of the electric pallet truck during operation, in one embodiment of the utility model, the safety switch 12 also includes a photoelectric switch 16, the OUT end of the photoelectric switch 12 can be connected to the safety signal pin 306 of the controller 3, and the positive end of the photoelectric switch 16 is connected to one end of the safety switch 12.

[0053] exist Figure 1 In order to distinguish the working area of ​​the electric pallet truck and improve the reliability of the electric pallet truck during operation, in one embodiment of the utility model, the operating device may also include a positioning module, which cooperates with the photoelectric switch 16 and is set at the boundary of the preset working area, and is used to cooperate with the photoelectric switch 16 when the electric pallet truck passes through the boundary to determine whether the electric pallet truck is located in the working area. In this example, the positioning module can be, for example, an electronic fence, and a reflective surface for triggering the photoelectric switch 16 can be set at the entrance and exit of the electronic fence. When the electric pallet truck enters the entrance and exit, the photoelectric switch 16 is triggered by the reflective surface, and the working state of the electric pallet truck can be triggered at this time. If the electric pallet truck is in a slow state before the trigger, then after the trigger, the electric pallet truck is switched to a normal running state, thereby determining that the electric pallet truck has entered the working area. Conversely, if the electric pallet truck is in a running state before the trigger, then after the trigger, the electric pallet truck is switched to a slow state, thereby determining that the electric pallet truck has entered the working area.

[0054] exist Figure 1 In order to complete the lifting operation of the electric pallet truck and improve the reliability of the electric pallet truck during operation, in one embodiment of the utility model, the controller 3 may include a lifting unit 18, the positive end of the lifting unit 18 is connected to the first end 301 of the controller, and the OUT end of the lifting unit 18 is connected to the lifting pin 311 of the controller 3 to receive the lifting signal to complete the fork lifting action of the electric pallet truck.

[0055] exist Figure 1 In order to complete the lowering operation of the electric pallet truck, cooperate with the electric pallet truck to complete the lowering after lifting, and improve the reliability of the electric pallet truck during operation, in one embodiment of the utility model, the controller 3 may include a lowering unit 19, the positive end of the lowering unit 19 is connected to the positive end of the lifting unit 18, the negative end of the lowering unit 19 is connected to the negative end of the lifting unit 18, and the OUT end of the lowering unit 19 is connected to the lowering pin 312 of the controller 3 to receive the lowering signal to complete the lowering action of the fork of the electric pallet truck.

[0056] exist Figure 1 In order to regulate the travel operation of the electric pallet truck and improve the reliability of the electric pallet truck during operation, in one embodiment of the utility model, the controller 3 also includes a drive unit 20, one end of the drive unit 20 is connected to the drive pin 313 of the controller 3 to receive a drive signal to complete the travel action of the electric pallet truck, and the drive unit 20 includes a drive motor, which is used to drive the travel operation of the electric pallet truck.

[0057] exist Figure 1 In consideration of the fact that the electric pallet truck can brake in time when it is driven by the driving unit to avoid safety accidents, in one embodiment of the utility model, the driving unit 20 may further include a braking unit 21, one end of the braking unit 21 is connected to the other end of the driving unit 20, and the other end of the braking unit 21 is connected to the braking pin 314 of the controller 3 to receive the braking signal to complete the braking action of the electric pallet truck.

[0058] In addition, in this embodiment, both the lifting unit 18 and the lowering unit 19 can be electrically connected to the lifting mechanism of the electric pallet truck, so as to display the lifting or lowering state of the lifting mechanism. The lifting mechanism can be in various forms known to those skilled in the art. In one example of the present invention, considering that the lifted fork needs to maintain the stability of lifting, the top of the lifting mechanism can be provided with a lifting limit assembly for limiting the lifting height. Similarly, the bottom of the lifting mechanism can also be provided with a lowering buffer assembly to prevent the fork from descending too fast.

[0059] Through the above technical solution, the operating device is connected to the controller by setting an intelligent handle, and drives and controls the electric pallet truck through the controller, so as to avoid the corresponding unit components being in a working state all the time to avoid damage, thereby achieving precise control, and setting a display unit to display various data information of the electric pallet truck for easy observation and regulation; at the same time, the operating device sets a functional switch group to determine the working area range of the electric pallet truck, cooperates with the driving unit, lifting unit and lowering unit of the controller, etc., to realize the function switching of the electric pallet truck, regulate the lifting, lowering and walking states of the electric pallet truck, reduce the probability of safety accidents, and improve the operating reliability and safety of the electric pallet truck.

[0060] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention. It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0061] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. An electric pallet truck operating device based on intelligent handle control, characterized in that: include: power supply; A main power switch, one end of which is connected to the positive electrode of the power supply; A controller, wherein a first end of the controller is connected to the other end of the main power switch, and a second end of the controller is connected to the negative electrode of the power supply; Smart handle, including: A key switch, one end of which is connected to the first end of the controller; A function switch group, one end of which is connected to the signal pin of the controller, and the other end of which is connected to the other end of the key switch group; A stepless speed regulation input unit, one end of which is connected to the stepless speed regulation signal pin of the controller, and the other end of which is connected to the other end of the key switch group; A display unit connected to the other end of the key switch; A ground terminal is connected to the second terminal of the controller.

2. The operating device according to claim 1, characterized in that: The functional switch group includes: A lifting switch, one end of which is connected to the lifting signal pin of the controller, and the other end of which is connected to the other end of the key switch; A down switch, one end of which is connected to a down signal pin of the controller, and the other end of which is connected to the other end of the key switch; A safety switch, one end of which is connected to the safety signal pin of the controller, and the other end of which is connected to the other end of the key switch; A slow switch, one end of which is connected to the slow control signal pin of the controller, and the other end of which is connected to the other end of the key switch; A mode switch, one end of the slow switch is connected to the mode signal pin of the controller, and the other end of the mode switch is connected to the other end of the key switch; A brake switch, one end of which is connected to a brake signal pin of the controller, and the other end of which is connected to the other end of the key switch.

3. The operating device according to claim 2, characterized in that: The safety switch further comprises a photoelectric switch, an OUT end of the photoelectric switch is connected to a safety signal pin of the controller, and a positive end of the photoelectric switch is connected to one end of the safety switch.

4. The operating device according to claim 3, characterized in that: The operating device also includes a positioning module, which is arranged at the boundary of a preset working area and is used to cooperate with the photoelectric switch to determine whether the electric pallet truck is located in the working area when the electric pallet truck passes through the boundary.

5. The operating device according to claim 2, characterized in that: The controller includes a lifting unit, a positive terminal of the lifting unit is connected to a first terminal of the controller, and an OUT terminal of the lifting unit is connected to a lifting pin of the controller to receive a lifting signal to complete the fork lifting action of the electric pallet truck.

6. The operating device according to claim 5, characterized in that: The controller includes a descending unit, a positive terminal of the descending unit is connected to the positive terminal of the lifting unit, a negative terminal of the descending unit is connected to the negative terminal of the lifting unit, and an OUT terminal of the descending unit is connected to the descending pin of the controller to receive a descending signal to complete the fork lowering action of the electric pallet truck.

7. The operating device according to claim 2, characterized in that: The controller also includes a driving unit, one end of which is connected to a driving pin of the controller to receive a driving signal to complete the walking action of the electric pallet truck.

8. The operating device according to claim 7, characterized in that: The driving unit further includes a braking unit, one end of which is connected to the other end of the driving unit, and the other end of which is connected to a braking pin of the controller to receive a braking signal to complete the braking action of the electric pallet truck.

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