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Manual double-connecting-rod highly airtight valve for civil air defense

A technology of airtight valves and double connecting rods, which is applied in the direction of sealing devices, anti-war damage, etc., can solve the problems of poisonous gas entering the interior of the project, laborious opening of valves, and low airtight strength, so as to achieve standard airtightness, flexible opening and closing, and avoid The effect of air leakage

Inactive Publication Date: 2014-02-05
TIANJIN XIANGHAN CIVIL AIR DEFENSE ENG PROTECTIVE EQUIP
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AI Technical Summary

Problems solved by technology

[0003] However, at present, most of the existing civil air defense valves have a single-link transmission structure. This transmission structure makes the opening of the valve more laborious; moreover, the airtightness is not high, and it is easy to produce dead ends, which will cause poisonous gas to enter the interior of the project and cause losses.

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  • Manual double-connecting-rod highly airtight valve for civil air defense
  • Manual double-connecting-rod highly airtight valve for civil air defense

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Embodiment Construction

[0018] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. The following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0019] A manual double-link high-seal valve for civil air defense, including a valve body, on which a fixed arm 4 is arranged, a main shaft 2 is mounted on the fixed arm, and pins 6 pass through the main shaft on both sides of the fixed arm. The rotating arms 3 are respectively installed, and the rotating arms are rotatably connected with the rotating seat 7 through the first-stage connecting rod 8. The innovation is that a connecting fixed arm and the rotating seat are also arranged between the first-stage connecting rods. The secondary connecting rod 5 of the valve body, the valve plate 9 of the valve body and the inner wall of the valve body 1 are sealed and connected by a sealing rubber strip 10 .

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Abstract

The invention relates to a manual double-connecting-rod highly airtight valve for civil air defense. The highly airtight valve comprises a valve body, wherein a fixed arm is arranged on the valve body, a spindle is mounted on the fixed arm in a penetrating manner; and rotating arms are mounted respectively on the spindle on two sides of the fixed arm through pins, and in rotational connection with a rotating seat through primary connecting rods. The highly airtight valve is characterized in that secondary connecting rods for connecting the fixed arm and the rotating seat are arranged between the primary connecting rods; and a valve plate of the valve body is in sealing connection with the inner wall of the valve body through a sealing rubber strip. The manual double-connecting rod highly airtight valve for civil air defense is scientific and reasonable in structural design, has the advantages of easiness in realization, flexible and labor-saving operation, high airtightness, low probability of rusting and long service life, and has higher innovativeness.

Description

technical field [0001] The invention belongs to the field of civil air defense engineering equipment, in particular to an airtight valve, in particular to a manual double-link high airtight valve for civil air defense. Background technique [0002] With the continuous development of social science and technology, building materials and civil air defense products are constantly updated, and the requirements for civil air defense equipment are also increasing. In order to further protect people's lives and property safety, civil air defense equipment manufacturers must actively innovate. Airtight valves for civil air defense are necessary to prevent shock waves and toxic gases from entering the interior of civil air defense projects. It is necessary to improve their operational flexibility and enhance their airtightness. [0003] However, most of the existing civil air defense valves have a single-link transmission structure. This transmission structure makes the opening of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E06B5/12E06B7/22
Inventor 何建军
Owner TIANJIN XIANGHAN CIVIL AIR DEFENSE ENG PROTECTIVE EQUIP
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