Holding and clamping pressure control system of holding and clamping type forklift

Abstract

The utility model discloses an embracing clamp pressure control system of an embracing clamp type forklift. The embracing clamp pressure control system comprises a control box, an embracing clamp operation handle and an electric proportional overflow valve, wherein the embracing clamp operation handle is used for controlling whether an embracing clamp conducts clamping or not, and the electric proportional overflow valve is used for controlling the hydraulic pressure when the embracing clamp conducts clamping. A controller is arranged in the control box; the clamping operation handle is provided with at least two pressure control keys, and the controller is electrically connected with the pressure control keys and the electric proportional overflow valve. The utility model is convenient for users to use.

Description

Technical Field

[0001] This utility model relates to the field of forklifts, and in particular to a clamping pressure control system for a clamping forklift. Background Technology

[0002] Existing clamp-type forklifts are equipped with clamps for gripping goods. The clamps can be raised and lowered via a lifting handle, and the clamping status can be controlled via a clamp handle. To prevent excessive clamping force from damaging goods, the hydraulic pressure during clamping needs to be controlled. Currently, clamp-type forklifts are equipped with a mechanical 4-position pressure regulating valve to adjust the hydraulic pressure during clamping. This valve has four positions. When there are many types of goods to be clamped and different clamping forces are required, the user needs to frequently manually move the pressure switching handle of the mechanical 4-position pressure regulating valve, and then move their hand back to the clamp operating handle to operate the clamp and drive the clamp to grip the goods. This requires frequent hand movement and is inconvenient to use. In addition, if the pressure value corresponding to each position of the mechanical 4-position pressure regulating valve needs to be adjusted, it is necessary to manually use a wrench to tighten the valve core corresponding to that position on the mechanical 4-position pressure regulating valve, which is also inconvenient.

[0003] In view of the above problems, it is necessary to study a clamping pressure control system for a clamping forklift, which first solves the problem of inconvenience in use, and then eliminates the problem of inconvenient gear adjustment. Utility Model Content

[0004] The purpose of this utility model is to provide a clamping pressure control system for a clamping forklift, which first solves the problem of inconvenience in use, and then eliminates the problem of inconvenient gear adjustment.

[0005] To achieve the above objectives, the solution of this utility model is:

[0006] A clamping pressure control system for a clamping forklift includes a control box, a clamping operation handle for controlling whether the clamp is clamping, and an electric proportional relief valve for controlling the hydraulic pressure of the clamp during clamping. The control box contains a controller. The clamping operation handle has at least two pressure control buttons, and the controller is electrically connected to each pressure control button and the electric proportional relief valve.

[0007] The clamp operating handle is equipped with two pressure control buttons.

[0008] The control box contains a Bluetooth communication module that is electrically connected to the controller.

[0009] The controller is electrically connected to the electric proportional relief valve via a proportional relief valve driver.

[0010] With the above solution, this utility model has at least two pressure control buttons on the clamping operating handle. The controller can control the electric proportional overflow valve according to the instructions generated by each pressure control button to adjust the hydraulic pressure of the clamp during clamping. In this way, the user can directly operate each pressure control button on the clamping operating handle to directly control the hydraulic pressure of the clamp during clamping. Then, the user can directly operate the clamping operating handle to control the clamp to hold the goods. This reduces the movement of the user's hands and makes it more convenient for the user to operate. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0012] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0013] Figure 3 This is a circuit block diagram of the present invention.

[0014] Label Explanation:

[0015] Control box 1, controller 11, Bluetooth communication module 12,

[0016] Clamping operating handle 2, pressure control button 21,

[0017] Electric proportional relief valve 3

[0018] Proportional relief valve driver 4. Detailed Implementation

[0019] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0020] like Figures 1 to 3As shown, this utility model discloses a clamping pressure control system for a clamping forklift, which includes a control box 1, a clamping operation handle 2 for controlling whether the clamp is clamping, and an electric proportional relief valve 3 for controlling the hydraulic pressure of the clamp during clamping. The clamping operation handle 2 is provided with at least two pressure control buttons 21. The control box 1 contains a controller 11, which is electrically connected to each pressure control button 21 and the electric proportional relief valve 3 respectively. The controller 11 controls the electric proportional relief valve 3 according to the instructions generated by each pressure control button 21 to adjust the hydraulic pressure of the clamp during clamping. The controller 11 can be electrically connected to the electric proportional relief valve 3 through a proportional relief valve driver 4. The clamping operation handle controlling whether the clamp is clamping, the electric proportional relief valve 3 controlling the hydraulic pressure of the clamp during clamping, and the controller 11 controlling the electric proportional relief valve 3 are all prior art and will not be described in detail here.

[0021] This invention features at least two pressure control buttons 21 on the clamping operating handle 2. The controller 11 controls the electric proportional overflow valve 3 according to the commands generated by each pressure control button 21 to adjust the hydraulic pressure of the clamp during clamping. In this way, the user can directly operate each pressure control button 21 on the clamping operating handle 2 to directly control the hydraulic pressure of the clamp during clamping. The user can then directly operate the clamping operating handle 2 to control the clamp to hold the goods, thus reducing the need for the user's hand movement and making the operation more convenient.

[0022] In an embodiment of this utility model, the clamp operating handle 2 is provided with two pressure control buttons 21, which allows for four hydraulic pressure settings. Specifically, if neither pressure control button 21 is pressed, a first command is generated, causing the controller 11 to control the hydraulic pressure of the clamp during clamping to the first hydraulic pressure setting via the electric proportional relief valve 3. If the first pressure control button 21 is pressed and the second pressure control button 21 is not pressed, a second command is generated, causing the controller 11 to control the hydraulic pressure of the clamp during clamping to the second hydraulic pressure setting via the electric proportional relief valve 3. If the second pressure control button 21 is pressed and the first pressure control button 21 is not pressed, a third command is generated, causing the controller 11 to control the hydraulic pressure of the clamp during clamping to the third hydraulic pressure setting via the electric proportional relief valve 3. If both pressure control buttons 21 are pressed, a fourth command is generated, causing the controller 11 to control the hydraulic pressure of the clamp during clamping to the fourth hydraulic pressure setting via the electric proportional relief valve 3. The first to fourth gears can be set incrementally or incrementally.

[0023] In an embodiment of this utility model, the control box 1 is provided with a Bluetooth communication module 12 electrically connected to the controller 11. The Bluetooth communication module 12 enables the controller 11 to communicate with a smart terminal (such as a smartphone). This allows the user to program the controller 11 through the smart terminal, making it convenient for the user to directly modify the hydraulic pressure corresponding to each hydraulic gear.

[0024] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A clamping pressure control system for a clamping forklift, comprising a clamping operating handle for controlling whether the clamp is clamping, and an electric proportional relief valve for controlling the magnitude of the hydraulic pressure of the clamp during clamping; characterized in that: It also includes a control box, which contains a controller; the clamp operating handle has at least two pressure control buttons, and the controller is electrically connected to each pressure control button and the electric proportional relief valve respectively.

2. The clamping pressure control system for a clamping forklift as described in claim 1, characterized in that: The clamp operating handle is equipped with two pressure control buttons.

3. The clamping pressure control system for a clamping forklift as described in claim 1, characterized in that: The control box contains a Bluetooth communication module that is electrically connected to the controller.

4. The clamping pressure control system for a clamping forklift as described in claim 1, characterized in that: The controller is electrically connected to the electric proportional relief valve via a proportional relief valve driver.

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