一种叉车载荷稳定器的液压系统
By simplifying the hydraulic system of the forklift load stabilizer and adopting a hydraulic system composed of multi-way valves, solenoid valve blocks, and synchronous clamping valves, the problems of numerous components and complex circuits in the existing technology are solved, realizing multi-functional operation of the load stabilizer and ensuring the safety of goods.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI HELI CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-17
AI Technical Summary
Existing forklift load stabilizers have a large number of hydraulic system components and complex wiring, resulting in high retrofit costs and difficulty in effectively preventing goods from shifting or tipping over during handling.
A hydraulic system for a forklift load stabilizer is adopted. The system consists of a multi-way valve, a solenoid valve block, a synchronous clamping valve, and a hydraulically controlled check valve. This system enables the overall lateral movement of the load stabilizer, fork spacing adjustment, and clamping operation, simplifying the hydraulic system structure.
It achieves multi-functional operation of load stabilizer, is highly applicable, low in cost, and can effectively prevent goods from shifting or tipping over during handling, ensuring the safety of goods.
Smart Images
Figure CN224513137U_ABST
Abstract
Claims
1. Hydraulic system of a load stabilizer of a fork lift truck comprising a multi-way valve (1) connected to an oil tank, characterized in that, The working port A1 of the first main valve (1-1) in the multi-way valve (1) is connected to the left and right adjusting cylinders respectively through the solenoid valve block (2), driving the left and right adjusting cylinders to move sideways simultaneously or individually; the working port of the second main valve (1-2) in the multi-way valve (1) is connected to the left and right pressing cylinders respectively through the synchronous pressing valve (3), driving the left and right pressing cylinders to move up and down.
2. The hydraulic system of a forklift load stabilizer according to claim 1, characterized in that, The oil inlet P2 of the solenoid valve block (2) is connected to the working oil port A1 of the first main valve (1-1), the oil return port T2 is connected to the oil tank, the working oil port A21 is connected to the rodless chamber of the left adjusting cylinder (6), the working oil port A22 is connected to the rodless chamber of the right adjusting cylinder (7), and the working oil port B22 is connected to the rod chambers of the left and right clamping cylinders respectively.
3. The hydraulic system of a load stabilizer for a fork truck according to claim 2, wherein The solenoid valve block (2) is internally equipped with a first three-position four-way valve (2-1), a second three-position four-way valve (2-2), and a two-position four-way valve (2-3); the first three-position four-way valve (2-1) has its A41 end connected to the oil inlet P2, its A42 end connected to the oil return port T2, its A43 end connected to the two-position four-way valve (2-3), and its A44 end connected to the working oil port A21; The second three-position four-way valve (2-2) has its B41 end connected to the oil inlet P2, its B42 end connected to the oil return port T2, its B43 end connected to the working oil port A22, and its B44 end connected to the working oil port B22. The two-position four-way valve (2-3) has its C41 end connected to the return port T2, its C42 end connected to the A43 end of the first three-position four-way valve (2-1), its C43 end connected to the oil line between its B44 end and the working oil port B22, and its C44 end connected to the oil line between its B43 end and the working oil port A22.
4. The hydraulic system of a load stabilizer for a fork truck according to claim 1, wherein The B31 port of the synchronous clamping valve (3) is connected to the working port B2 of the second main valve (1-2), and the A31 port is connected to the working port A2 of the second main valve (1-2). The B32 and A32 ports of the synchronous clamping valve (3) are connected to the rod chamber and rodless chamber of the left clamping cylinder (4) respectively. The A31 and A33 ports of the synchronous clamping valve (3) are connected to the rod chamber and rodless chamber of the right clamping cylinder (5) respectively.
5. The hydraulic system of a load stabilizer for a fork truck according to claim 4, wherein The internal components of the synchronous pressing valve (3) include a flow divider / combiner valve (3-1) and a hydraulically controlled check valve (3-2). One end of the flow divider / combiner valve (3-1) is connected to port A31, and the other end has two ports connected to ports A32 and A33 respectively via a hydraulically controlled check valve (3-2). The pressure ends of the two hydraulically controlled check valves (3-2) are connected to ports A31 and B32 respectively.
6. The hydraulic system of a load stabilizer for a fork truck according to claim 1, wherein The oil inlet P of the multi-way valve (1) is connected to the oil tank via the oil pump (8), and the oil return port T is connected to the oil tank; the power supply terminals of the first main valve (1-1) and the second main valve (1-2) are each connected to an electro-proportional pressure reducing valve (1-3) to control the position of its valve core; the oil inlet terminals of the first main valve (1-1) and the second main valve (1-2) are each connected to the oil inlet P via a pressure compensator (1-4).
7. The hydraulic system of a load stabilizer for a fork truck according to claim 1, wherein The left and right distance adjusting oil cylinders are connected with the left and right forks respectively, and drive the left and right forks to move sideways simultaneously or individually; the left and right pressing oil cylinders are connected with the left and right pressing plates respectively, and drive the left and right pressing plates to move relative to the direction of the forks to press or release the goods.