Height adjusting device of forklift pedal

Abstract

The utility model relates to the technical field of forklifts, and discloses a height adjusting device of a forklift pedal, which comprises a driving mechanism and a pressure sensing mechanism, the driving mechanism comprises a driving part and a telescopic part, the driving part is arranged on a bottom plate, the input end of the telescopic part is electrically connected with the output end of the driving part, the output end of the telescopic part is connected with the bottom of the pedal, and the pressure sensing mechanism is arranged on the pedal. The pressure sensing mechanism is used for sensing pressure information acting on the pedal plate, the control panel is used for acquiring a control instruction, and the controller is used for receiving information of the control panel and the pressure sensing mechanism and controlling the driving mechanism to drive the pedal plate to move up and down. The pressure signal is transmitted to the controller to adapt to leg space requirements of drivers with different heights, so that foot and leg muscle strain is reduced, driving comfort is improved, the system is particularly suitable for long-time operation scenes, the controller adaptively adjusts the height of the pedal according to the pressure signal, and system flexibility is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of forklift technology, and in particular to a height adjustment device for forklift foot pedals. Background Technology

[0002] Currently, the legroom in the passenger compartment of ride-on pallet trucks is a fixed value, which cannot accommodate drivers of different heights. This affects the driver's comfort and increases safety risks during driving. For example, for taller drivers, the low height between the seat and the floor forces their legs to be cramped, which can lead to leg fatigue and reduced work efficiency over long periods. Conversely, shorter drivers may have difficulty reaching the foot pedals, increasing the risk of accidents.

[0003] In view of this, we propose a height adjustment device for forklift foot pedals. Utility Model Content

[0004] The purpose of this invention is to provide a height adjustment device for forklift foot pedals to solve the problems in the prior art. It can change the height of the foot pedals to meet the leg space needs of drivers of different heights.

[0005] This utility model provides a height adjustment device for a forklift foot pedal, including a base plate and a foot pedal disposed on the base plate. The height adjustment device includes:

[0006] A drive mechanism includes a drive unit and a telescopic unit. The drive unit is disposed on the base plate. The input end of the telescopic unit is electrically connected to the output end of the drive unit. The output end of the telescopic unit is connected to the bottom of the foot pedal.

[0007] A pressure sensing mechanism is provided on the foot pedal for sensing pressure information applied to the foot pedal;

[0008] The control panel is used to obtain control commands;

[0009] The controller is electrically connected to the drive mechanism, the pressure sensing mechanism, and the control panel, respectively, and is used to receive information from the control panel and the pressure sensing mechanism and control the drive mechanism to move the foot pedal up and down.

[0010] In the forklift foot pedal height adjustment device described above, preferably, a support mechanism for synchronous movement with the telescopic part is provided at the bottom of the foot pedal on the side away from the telescopic part.

[0011] As described above, in a height adjustment device for a forklift foot pedal, preferably, the support mechanism includes a pin, a sleeve, and an elastic element. The pin is connected to the foot pedal, the sleeve is disposed on the base plate and is disposed opposite to the pin, at least a portion of the pin is inserted into the sleeve, and the elastic element is sleeved on the pin and the sleeve.

[0012] In the forklift foot pedal height adjustment device described above, preferably, the control panel includes a first adjustment button and a second adjustment button, the output end of the first adjustment button is connected to the input end of the controller, and the output end of the second adjustment button is connected to the input end of the pressure sensing mechanism.

[0013] In the forklift foot pedal height adjustment device described above, preferably, the first adjustment button includes a lift level, a lower level, and a stop level. When the controller obtains the lift level, it controls the drive unit to operate and causes the telescopic part to lift the foot pedal. When the controller obtains the lower level, it controls the drive unit to operate and causes the telescopic part to lower the foot pedal. When the controller obtains the stop level, it controls the drive unit to de-energize.

[0014] In the forklift foot pedal height adjustment device described above, preferably, the second adjustment button includes an on level and an off level. When the controller receives the on level, the controller controls the pressure sensing mechanism to open, and the pressure sensing mechanism inputs pressure information to the controller, thereby the controller controls the drive unit to run to drive the telescopic part to rise or fall. When the controller receives the off level, the controller controls the pressure sensing mechanism to close.

[0015] In the forklift foot pedal height adjustment device described above, preferably, the controller further includes a delay module, which, after a delay, triggers the controller to perform a corresponding action when the pressure signal changes.

[0016] In the forklift foot pedal height adjustment device described above, preferably, the pressure sensing mechanism employs a pressure sensor.

[0017] Compared with the prior art, this utility model drives the foot pedal to rise and fall through a drive mechanism, thereby changing the distance between the foot pedal and the base plate to adapt to the leg space needs of drivers of different heights, thereby reducing foot and leg muscle strain and improving driving comfort, especially suitable for long-term work scenarios.

[0018] Control commands are sent to the controller via the control panel. By setting a pressure sensing mechanism on the foot pedal, the controller adaptively adjusts the foot pedal height according to the pressure signal, enhancing the system's flexibility. The two adjustment modes are independent of each other and do not interfere with each other. Attached Figure Description

[0019] Figure 1 This is a front view of the forklift foot pedal height adjustment device provided in an embodiment of this utility model;

[0020] Figure 2 This is an enlarged view of the forklift foot pedal height adjustment device provided in an embodiment of this utility model;

[0021] Figure 3 This is a front view of the support mechanism provided in an embodiment of this utility model;

[0022] Figure 4 This is a top view of the control panel provided in an embodiment of this utility model;

[0023] Figure 5 This is a flowchart of the first adjustment button control drive mechanism of this utility model;

[0024] Figure 6 This is a flowchart of the second adjustment button control drive mechanism of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 10-Drive mechanism, 11-Drive unit, 12-Telescopic unit;

[0027] 20 - Pressure sensing mechanism;

[0028] 30 - Control panel, 31 - First adjustment button, 32 - Second adjustment button;

[0029] 40 - Controller, 41 - Delay module;

[0030] 50-Support mechanism, 51-Insertion post, 52-Sleeve, 53-Elastic element;

[0031] 60 - Base plate, 61 - Foot pedal. Detailed Implementation

[0032] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0033] See Figure 1-4 As shown, a height adjustment device for a forklift foot pedal 61 includes a base plate 60 and a foot pedal 61 disposed opposite to the base plate 60. A receiving space exists between the base plate 60 and the foot pedal 61. The height adjustment device is disposed within this receiving space and is used to adjust the height between the foot pedal 61 and the base plate 60. The height adjustment device includes a drive mechanism 10, a pressure sensing mechanism 20, a control panel 30, and a controller 40, wherein:

[0034] The drive mechanism 10 includes a drive unit 11 and a telescopic unit 12. The drive unit 11 is mounted on the base plate 60. The input end of the telescopic unit 12 is electrically connected to the output end of the drive unit 11, and the output end of the telescopic unit 12 is connected to the bottom of the foot pedal 61. The drive unit 11 drives the telescopic unit 12 to extend and retract, thereby raising and lowering the foot pedal 61. In the embodiments provided in this application, the drive mechanism 10 can be a hydraulic drive device or an electric push rod drive device, etc. When a hydraulic drive device is used, the drive unit 11 is a hydraulic pump and the telescopic unit 12 is a hydraulic cylinder. When an electric push rod drive device is used, the drive unit 11 is a motor and the telescopic unit 12 is a push rod. In this embodiment, an electric push rod drive device is preferably used, and the model can be selected from JC35W1, etc.

[0035] A pressure sensing mechanism 20 is disposed on the foot pedal 61 to sense the pressure information acting on the foot pedal 61. The specific location of the pressure sensing mechanism 20 on the foot pedal 61 is not limited, but it is preferably located near the brake pedal or within the foot's foot pressure range. In this embodiment, the pressure sensing control drive mechanism 10 drives the foot pedal 61 to rise and fall, effectively solving the problem of driver comfort for drivers of different body types.

[0036] The control panel 30 is used to acquire control commands. The drive mechanism 10 is controlled to perform actions via the control panel 30. In this embodiment, the control panel 30 is the same as the control panel that comes with the forklift, with corresponding control buttons added to it. The output of the control buttons is connected to the input of the controller 40. The connection circuit is existing technology and is not limited here.

[0037] The controller 40 is electrically connected to the drive mechanism 10, the pressure sensing mechanism 20, and the control panel 30. It receives information from the control panel 30 and the pressure sensing mechanism 20 and controls the drive mechanism 10 to move the foot pedal 61 up and down. The control panel 30 sends control signals to the controller 40. Based on the received signals, the controller 40 controls the drive mechanism 10 to perform corresponding actions, namely, controlling the foot pedal 61 to move up and down, thereby changing the height distance between the foot pedal 61 and the base plate 60 to meet the legroom needs of drivers of different heights. In this embodiment, the controller 40 is the forklift's built-in controller 40; its other internal power supply or control modules are not described in detail here.

[0038] In this embodiment, the pressure sensing mechanism 20 uses a pressure sensor, and the model can be a six-component force sensor such as FS55, K6D80 or 6KA50.

[0039] To increase the support for the foot pedal 61, in this embodiment, see... Figure 1As shown, a support mechanism 50 for synchronous movement with the telescopic part 12 is provided on the bottom side of the foot pedal 61 away from the telescopic part 12. The output end of the telescopic part 12 is connected to the bottom of the foot pedal 61, and there is only one support point. During the lifting and lowering process of the foot pedal 61, uneven force may cause the foot pedal 61 to tilt. Therefore, this application provides a support mechanism 50 at the bottom of the foot pedal 61, which, together with the telescopic part 12, forms a double support point, which can form a balanced force distribution, significantly reduce the risk of lateral deflection, and ensure a smooth lifting and lowering process. As a preferred embodiment, the telescopic part 12 and the support mechanism 50 are respectively located at the corresponding positions of the two feet.

[0040] See Figure 2-3 As shown, the support mechanism 50 includes a pin 51, a sleeve 52, and an elastic element 53. The pin 51 is connected to the foot pedal 61. The sleeve is disposed on the base plate 60 and is opposite to the pin 51. At least a portion of the pin 51 is inserted into the sleeve 52. The elastic element 53 is sleeved on the pin 51 and the sleeve 52. The sleeve 52 constrains and guides the movement trajectory of the pin 51. The length of the sleeve 52 is greater than the length of the pin 51. When the telescopic part 12 moves, the pin 51 moves within the sleeve 52, and the elastic element 53 is compressed. This support mechanism 50 not only provides support but also has a certain shock absorption effect, making the lifting process more stable. In the embodiment provided in this application, the elastic element 53 is a spring. In order to provide good support for the foot pedal 61, the length of the spring in its natural state should be greater than or equal to the distance between the foot pedal 61 and the base plate 60 when the telescopic part 12 is extended to its limit.

[0041] See Figure 4 As shown, the control panel 30 includes a first adjustment button 31 and a second adjustment button 32. The output of the first adjustment button 31 is connected to the input of the controller 40, and the output of the second adjustment button 32 is connected to the input of the pressure sensing mechanism 20. The first adjustment button 31 is electrically connected to the input of the controller 40, allowing direct control of the drive mechanism 10's movement. The second adjustment button 32 is electrically connected to the input of the pressure sensing mechanism 20, which in turn is connected to the input of the controller 40. The second adjustment button 32 controls the opening and closing of the pressure sensing mechanism 20. When the pressure sensing mechanism 20 is open, it feeds back a pressure signal to the controller 40. The controller 40 controls the drive mechanism 10 to perform corresponding actions based on different pressure signals. This application employs two adjustment methods: active adjustment and adaptive adjustment. These two methods are independent and do not interfere with each other. The driver can choose according to their needs. Furthermore, if one adjustment method malfunctions, the driver can use the other adjustment method without affecting usability. In addition, the two adjustment methods can be prioritized to avoid conflicts. The prioritization can be achieved using existing technology, which will not be elaborated on again.

[0042] join Figure 5 As shown, the first adjustment button 31 includes an up level, a down level, and a stop level. When the controller 40 receives the up level, it controls the drive unit 11 to run and causes the telescopic unit 12 to lift the foot pedal 61. When the controller 40 receives the down level, it controls the drive unit 11 to run and causes the telescopic unit 12 to lower the foot pedal 61. When the controller 40 receives the stop level, it de-energizes the drive unit 11. In this embodiment, an electric push rod drive device is used as an example. When the controller 40 receives the up level signal, it starts the motor to rotate forward, and the push rod lifts the foot pedal 61. When the controller 40 receives the down level signal, it starts the motor to rotate in reverse, and the push rod lowers the foot pedal 61. When the controller 40 receives the stop level signal, the motor stops, and the foot pedal 61 stops at that position. The level signals are achieved by manually pressing the first adjustment button 31.

[0043] See Figure 6 As shown, the second adjustment button 32 includes an on level and an off level. When the controller 40 receives the on level, the controller 40 controls the pressure sensing mechanism 20 to open, and the pressure sensing mechanism 20 inputs pressure information to the controller 40, thereby the controller 40 controls the drive unit 11 to run, driving the telescopic part 12 to rise or fall. When the controller 40 receives the off level, the controller 40 controls the pressure sensing mechanism 20 to close. The second adjustment button 32 is used to open and close the pressure sensing mechanism 20. When the controller 40 receives the on level signal, the pressure sensing mechanism 20 starts. When the pressure sensing mechanism 20 receives a pressure signal of 0, that is, there is no pressure on the foot pedal 61, the controller 40 controls the motor to rotate forward, and the push rod raises the foot pedal 61. When it contacts the foot, the pressure sensing mechanism 20 receives a pressure signal of 1, then the controller 40 controls the motor to rotate in reverse, and the push rod lowers the foot pedal 61. When it lowers to a suitable position for the driver, the second adjustment button 32 is closed. When the controller 40 receives the off level signal, it stops the motor rotation, and the foot pedal 61 stays in that position.

[0044] See Figure 6As shown, when the pressure signal from the pressure sensor is 1, the foot has just touched the foot pedal 61. At this time, the foot pedal 61 is not yet fully in contact with the foot. If the controller 40 immediately controls the drive mechanism 10 to lower the foot pedal 61 after receiving the pressure signal, the driver will not have enough time to close the second adjustment button 32. Since the foot pedal 61 has already lowered, the height of the foot pedal 61 may not meet the driver's optimal needs. Therefore, the controller 40 also includes a delay module 41. When the pressure signal changes, the delay module 41 triggers the controller 40 to perform the corresponding action after a delay. The delay module 41 can be integrated into the controller 40. The method of setting the delay is existing technology and will not be elaborated here. When the controller 40 detects a change in the pressure signal, it transmits the execution signal to the drive mechanism 10 after the delay by the delay module 41. During the delay time, the telescopic part 12 continues to raise the foot pedal 61, allowing the foot pedal 61 to fully contact the foot, thereby achieving the optimal foot pedal height. The driver also has enough time to close the second adjustment button 32. The delay time is preferably 1-3 seconds.

[0045] It should be noted that the drive mechanism 10, pressure sensing device 20, control panel 30 and controller 40 used in this application can be existing compatible models. The improvement of this application lies in the connection relationship between the modules. As for the connection relationship between the internal circuits and power supply structures, it will not be elaborated here.

[0046] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this utility model. The above description is only a preferred embodiment of this utility model, but the scope of implementation of this utility model is not limited to what is shown in the drawings. Any changes made in accordance with the concept of this utility model, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, shall be within the protection scope of this utility model.

Claims

1. A height adjustment device for a forklift foot pedal, comprising a base plate and a foot pedal disposed opposite to the base plate, characterized in that, include: A drive mechanism includes a drive unit and a telescopic unit. The drive unit is disposed on the base plate. The input end of the telescopic unit is electrically connected to the output end of the drive unit. The output end of the telescopic unit is connected to the bottom of the foot pedal. A pressure sensing mechanism is provided on the foot pedal to sense the pressure information applied to the foot pedal; The control panel is used to receive control commands; The controller is electrically connected to the drive mechanism, the pressure sensing mechanism, and the control panel, respectively, and is used to receive information from the control panel and the pressure sensing mechanism and control the drive mechanism to move the foot pedal up and down.

2. The height adjustment device for forklift foot pedals according to claim 1, characterized in that, The foot pedal has a support mechanism at its bottom on the side away from the telescopic part for moving synchronously with the telescopic part.

3. The height adjustment device for forklift foot pedals according to claim 2, characterized in that, The support mechanism includes a plug, a sleeve, and an elastic element. The plug is connected to the foot pedal, the sleeve is disposed on the base plate and is opposite to the plug, at least a portion of the plug is inserted into the sleeve, and the elastic element is sleeved on the plug and the sleeve.

4. The height adjustment device for forklift foot pedals according to claim 1, characterized in that, The control panel includes a first adjustment button and a second adjustment button. The output of the first adjustment button is connected to the input of the controller, and the output of the second adjustment button is connected to the input of the pressure sensing mechanism.

5. The height adjustment device for forklift foot pedals according to claim 4, characterized in that, The first adjustment button includes an up level, a down level, and a stop level. When the controller receives the up level, it controls the drive unit to run and causes the telescopic part to lift the foot pedal. When the controller receives the down level, it controls the drive unit to run and causes the telescopic part to lower the foot pedal. When the controller receives the stop level, it controls the drive unit to de-energize.

6. The forklift foot pedal height adjustment device according to claim 4, characterized in that, The second adjustment button includes an on level and an off level. When the controller receives the on level, the controller controls the pressure sensing mechanism to open, and the pressure sensing mechanism inputs pressure information to the controller, thereby the controller controls the drive unit to run to drive the telescopic part to rise or fall. When the controller receives the off level, the controller controls the pressure sensing mechanism to close.

7. The height adjustment device for forklift foot pedals according to claim 1, characterized in that, The controller also includes a delay module, which triggers the controller to perform corresponding actions after a delay when the pressure signal changes.

8. The height adjustment device for forklift foot pedals according to claim 1, characterized in that, The pressure sensing mechanism employs a pressure sensor.

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