Accurate control valve

A control valve and precision technology, applied in the direction of valve device, function valve type, fluid distribution valve, etc., can solve the problem that the valve has only switch function, no measurement function, etc.

Inactive Publication Date: 2007-05-02
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The flow control in the irrigation process is generally realized by controlling the valve. At present, there are two types of valves: manual and automatic. The valve is opened or closed by manual or automatic control. Generally, the valve only has the switch function and has no measurement function.

Method used

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Embodiment Construction

[0018] Please refer to accompanying drawings 1, 2, 3, 4, 5, 6, 7, 8, 9, the structure of the precision control valve of the present invention includes: a main body seat 1 and a main body cover 10, the figure of the main body seat 1 is shown in Fig. 2 A water inlet 3 is provided between the main body seat 1 and the main body cover 10, and an impeller 2 is arranged at the water inlet 3; the impeller 2 is fixed on the main body seat by the main body seat 1 and the first fixed tray 4 (Fig. 1, the impeller 2 is provided with a first gear 5, the first gear 5 and the impeller 2 are fixed as a whole, the impeller 2 and the first gear 5 can rotate around the impeller shaft 29; the first gear 5 and the first fixed tray 4 The reduction gear set 6 meshes (Fig. 8, 9), the reduction gear set 6 is fixed by the first fixed pallet 4 and the second fixed pallet 7 (Fig. 3b) through the first gear shaft 30 and the second gear shaft 31, the reduction gear set 6 The second gear 8 is arranged on the...

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Abstract

This invention discloses a precision measurement control valve. It is mainly consisted by a main body seat and main body cover, blade wheel, gear, fixed salver underdriving gear set, cam, control cylinder body, spring, handle and other components. Through underdriving gear set, flow velocity and speed reducing ratio of underdriving gear set is matched to realize precision measurement. When underdriving gear set rotates to setting position, valve closed signal is transferred by cam driven by underdriving gear set, then interval channel is closed through valve part to realize precision measurement control.

Description

technical field [0001] The invention relates to a valve and measuring equipment frequently used in agricultural irrigation, in particular to a precision control valve. Background technique [0002] The flow control in the irrigation process is generally realized by controlling the valve. At present, there are two types of valves: manual and automatic. The valve is opened or closed by manual or automatic control. Generally, the valve only has the switch function and has no measurement function. Therefore, it is a very practical irrigation equipment to develop a precision control valve that can be measured and automatically controlled without additional power. Contents of the invention [0003] The purpose of the present invention is to provide a precision control valve, which combines the measurement technology of water quantity and the automatic closing technology of flow channel to realize precise measurement and con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K21/16
Inventor 牛文全吴普特陈泽沛朱俊平范兴科
Owner NORTHWEST A & F UNIV
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