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Middle cavity inner swing type quick opening and closing gate valve

A fast, pendulum technology, applied in the direction of lift valve, sliding valve, valve details, etc., can solve the problem of laborious operation of the runner, and achieve the effect of easy construction and installation, cost saving, and ensuring the sealing effect.

Active Publication Date: 2022-02-18
TIANJIN CARLS VALVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a fast opening and closing gate valve with a pendulum type in the middle cavity, which solves the problem of laborious operation of the runner, avoids collision or misoperation causing the runner to move, can be opened and closed quickly, and ensures the tightness

Method used

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  • Middle cavity inner swing type quick opening and closing gate valve
  • Middle cavity inner swing type quick opening and closing gate valve
  • Middle cavity inner swing type quick opening and closing gate valve

Examples

Experimental program
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Embodiment Construction

[0027] Such as figure 1 and 3 As shown in the figure, a fast opening and closing gate valve with a pendulum type in the middle chamber includes a valve seat 1, a gate plate 2, a valve stem 3 and a runner 4. The gate plate 2 is located in the valve seat 1, and the gate plate 2 and the valve stem 3 are linked. , the valve stem 3 is connected with the runner 4, and the opening and closing of the gate is controlled by the runner 4.

[0028] A booster handle 5 is hinged on the side of the runner 4. When the booster handle 5 is folded outwards, the moment arm increases, so that the runner 4 can be controlled to rotate with a small external force. After the starting operation is completed, the booster handle 5 is turned inward around the hinge point, and the state is as follows: figure 2 As shown, it does not take up space after being folded, and has a compact structure.

[0029] Such as image 3 As shown, a locking sleeve 6 is provided on the valve stem 3, and there is only an ...

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Abstract

The invention discloses a middle cavity inner swing type quick opening and closing gate valve which comprises a valve seat, a gate plate, a valve rod and a rotating wheel, opening and closing of the gate plate are controlled through the rotating wheel, a power-assisted handle is hinged to the side edge of the rotating wheel, a locking sleeve is arranged on the valve rod, the turning action of the power-assisted handle is linked with the locking sleeve, the top of the gate plate is hinged, one side of the gate plate is hinged with a connecting rod, the other end of the connecting rod is hinged to a nut, the nut is screwed to a threaded rod at the lower end of the valve rod, a wedge-shaped pressing block is arranged in a cavity of the valve seat, the hinged end of the gate plate is connected with a sliding block, the sliding block is arranged in a sliding groove of the valve seat, and a compression spring is arranged in the sliding groove. The power-assisted handle is capable of increasing arm force, the rotating wheel can be locked and fixed through the locking sleeve, valve action caused by accidental touch is avoided, traditional linear motion is replaced with overturning action, the size of the valve seat is effectively reduced, construction and installation are facilitated, gate closing comprises two actions of rotating closing and pushing, pressing and sealing, and the sealing effect is guaranteed.

Description

technical field [0001] The invention relates to the field of valves, in particular to a fast opening and closing gate valve with a swing type in a middle cavity. Background technique [0002] The opening and closing part of the gate valve is a gate, and the movement direction of the gate is perpendicular to the direction of the fluid to control the full opening and closing of the valve. It is widely used in water conservancy and oil and gas pipelines and other fields, and it is convenient and flexible to control the opening and closing of the connecting pipeline. The disadvantages of traditional gate valves include larger dimensions, a certain space is required for opening, and a long opening and closing time. The structure is more complicated. [0003] The publication number is CN110056665B, which discloses a fast opening and closing gate valve with a pendulum in the middle chamber, including a gate valve body, a gate valve cover, a driving valve rod and a gate valve middl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K3/02F16K3/18F16K3/30F16K3/314F16K3/316F16K31/50F16K31/60F16K35/00F16K1/20F16K1/32
CPCF16K3/0254F16K3/18F16K3/30F16K3/314F16K3/316F16K1/2007F16K1/2057F16K1/32F16K31/508F16K31/60F16K35/00Y02E10/20
Inventor 王志坚朱志强王伟杰朱绍艺王伟庆朱绍杰候万华王群增李智
Owner TIANJIN CARLS VALVE CO LTD