Forklift multi-way valve operating mechanism with safety protecting function

A technology of safety protection and control mechanism, applied in valve devices, mechanical equipment, engine components, etc., can solve the problems of inability to realize batch matching of the whole machine, difficult for users to accept, immature technology, etc., to achieve simple structure, low cost, good craftsmanship

CN103910309AActive Publication Date: 2014-07-09ANHUI HELI CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-07-09

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Abstract

The invention relates to a forklift multi-way valve operating mechanism with a safety protecting function. The forklift multi-way valve operating mechanism comprises a safety protecting frame, a lifting manipulation handle, an inclined manipulation handle, a first accessory manipulation handle, a second accessory manipulation handle, a multi-way valve frame assembly and a frame type electromagnet, wherein the four manipulation handles are identical in structure and respectively mounted on the safety protecting frame. During working, in the condition that the frame type electromagnet is blackout, the safety protecting frame slides on a connection shaft under action of a reset spring, and the four manipulation handles are clamped by four pairs of upper and lower limiting pins on the safety protecting frame to enable the four manipulation handles to be incapable of manipulating freely, so that all actions of valve bodes of the multi-way valve are stopped; otherwise, when the frame type electromagnet is electrified, the four manipulation handles are unlimited by the upper and lower limiting pins and can turn on and turn off the valve bodies of the multi-way valve freely.
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Description

technical field

[0001] The invention belongs to the technical field of forklifts, and in particular relates to a multi-way valve control mechanism for loading and unloading operations of forklifts. Background technique

[0002] In order to further improve the safety performance of forklifts, an operator presence sensing system, namely OPS system, has been proposed internationally. The OPS system refers to a safety system that senses whether the driver is sitting on the driver's seat in the correct posture through the seat sensor installed in the driver's seat. If the driver does not sit on the driver's seat in the correct posture or leaves the seat, the sensor has no signal input, and the driving force is cut off (automatic transmission vehicles only), and all loading and unloading operations will be stopped at the same time, avoiding the forklift Continue to work in an out-of-control state, causing unnecessary safety accidents. Foreign forklifts are usually configured by...

Examples

Embodiment Construction

[0025] The present invention will be further described through the embodiments below in conjunction with the accompanying drawings.

[0026] see figure 1 and figure 2 , the forklift multi-way valve control mechanism with safety protection function includes safety protection frame 12, lifting control handle 1, tilt control handle 2, first attachment control handle 3, second attachment control handle 4, multi-way valve bracket assembly 10 and frame electromagnet 7.

[0027] see Figure 5 , The safety protection frame 12 includes four side plates 121 , a welding plate 122 , a connecting plate 124 and an L-shaped plate 125 . The four side plates 121 are strip-shaped short plates with the same structure, one end of the four side plates 121 is connected to one side of the welding plate 122, and is evenly distributed, and the lower part of one end of the other side of the welding plate 122 is connected to the L One side plate of the L-shaped plate 125, the other side plate of th...