Flat gate valve

A technology of flat gate valves and gates, which is applied in the direction of sliding valves, valve details, valve devices, etc., can solve the problems of easy opening of flat gate valves and weak anti-theft performance of flat gate valves, and achieve the effect of strong anti-theft performance

Active Publication Date: 2018-03-09
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem that the slab gate valve is easy to open in the related art, criminals can easily open the slab gate valve by rotating the handwheel and ste

Method used

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] figure 1 It is a structural schematic diagram of a slab gate valve shown in an embodiment of the present invention. The slab gate valve can include:

[0033] Valve body 11, flashboard 12, leading screw 13 and connecting rod 14.

[0034] The shutter 12 is disposed inside the valve body 11 .

[0035] The connecting rod 14 is screwed to the gate plate 12 and the length direction of the connecting rod 14 is parallel to the surface of the gate plate 12 .

[0036] The lead screw 13 is provided with a through hole 131 along the length direction of the lead screw 13 , the lead screw 13 is sleeved on the outside of the connecting rod 14 through the through hole 131 and threadedly connected with the connecting rod 14 .

[0037] Wherei...

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Abstract

The invention discloses a flat gate valve and belongs to the field of equipment for oil extraction in oilfields. The flat gate valve comprises a valve body, a gate plate, a leads crew and a connectingrod, wherein the gate plate is arranged in the valve body; the connecting rod is in threaded connection with the gate plate; the length direction of the connecting rod is parallel to the plate surface of the gate plate; a through hole along the length direction of the lead screw is formed in the lead screw; the lead screw sleeves the connecting rod through the through hole and is in threaded connection with the connecting rod; and after the flat gate valve is closed, the connecting rod is separated from the flat gate valve by rotating the connecting rod. According to the flat gate valve disclosed by the invention, the gate plate and the lead screw are connected through the connecting rod, the connecting rod is in threaded connection with both the gate plate and the lead screw, and the flat gate valve is hard to open or close after the connecting rod is dismounted; accordingly, the problems that in the relevant arts, a conventional flat gate valve is easy to open, a lawbreaker can easily open the conventional flat gate valve by rotating a hand wheel and steal crude oil from an oilfield pipeline, and the anti-theft performance of the conventional flat gate valve is relatively poor are solved; and the flat gate valve disclosed by the invention achieves the effect of being relatively strong in anti-theft performance.

Description

technical field [0001] The invention relates to the field of oil production equipment in oil fields, in particular to a flat gate valve. Background technique [0002] The slab gate valve is a sliding valve that closes the pipeline through the ram, and the slab gate valve is widely used in oilfield pipelines. [0003] There is a slab gate valve in the related art. The slab gate valve generally includes a valve body, a handwheel, a screw and a gate. The gate is located inside the valve body. The screw and the gate are fixedly connected. The lever is threaded, and the ram can be raised or lowered by rotating the hand wheel, thereby opening or closing the pipeline. [0004] In the process of realizing the present invention, the inventor has found that the prior art has at least the following problems: the above-mentioned flat gate valve is easy to open, criminals can easily open the flat gate valve by rotating the handwheel and steal crude oil from the oil field pipeline, and t...

Claims

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Application Information

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IPC IPC(8): F16K3/02F16K3/314F16K35/00
CPCF16K3/0281F16K3/314F16K35/00
Inventor 李明李秉军郭自强郭栋谢楠
Owner PETROCHINA CO LTD
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