阅读说明：本技术 一种自融式自动弹射紧急关闭阀门 (Self-melting type automatic ejection emergency closing valve ) 是由 徐斐 徐丽斌 牛嫚莉 于 2020-07-09 设计创作，主要内容包括：本发明属于阀门技术领域,具体涉及一种自融式自动弹射紧急关闭阀门,包括阀体、阀盖、第一弹射阀杆支架、弹射阀杆、阀瓣、弹射簧、阀门密封面、第二弹射阀杆支架、阀盖支架、磁力头、自融棒,所述阀体与阀盖通过丝扣固定连接,所述阀盖的下端设有阀门密封面,所述阀体内设有第一弹射阀杆支架,所述第一弹射阀杆支架上设有第一阀杆定位孔,所述弹射阀杆的一端穿过第一弹射阀杆支架上的第一阀杆定位孔,所述弹射阀杆上设有阀瓣,所述阀瓣通过弹射簧与第一弹射阀杆支架连接。本发明在发生火灾时自融棒熔化掉落,使阀瓣与阀盖的阀门密封面结合密封气体,防止管道内的天然气外漏。本发明用于在火灾时防止天然气的泄漏。(The invention belongs to the technical field of valves, and particularly relates to a self-melting type automatic ejection emergency closing valve which comprises a valve body, a valve cover, a first ejection valve rod support, an ejection valve rod, a valve clack, an ejection spring, a valve sealing surface, a second ejection valve rod support, a valve cover support, a magnetic head and a self-melting rod. The self-melting rod is melted and falls off when a fire disaster happens, so that the valve clack and the valve sealing surface of the valve cover are combined to seal gas, and natural gas in the pipeline is prevented from leaking. The invention is used for preventing natural gas leakage in case of fire.)

1. The utility model provides a from melting formula automatic ejection emergency shutdown valve which characterized in that: comprises a valve body (1), a valve cover (2), a first ejection valve rod support (3), a first valve rod positioning hole (4), an ejection valve rod (5), a valve clack (6), an ejection spring (7), a valve sealing surface (8), a second ejection valve rod support (9), a second valve rod positioning hole (10), a valve cover support (11), a magnetic head (12) and a self-melting rod (13), wherein the valve body (1) is fixedly connected with the valve cover (2) through screw threads, the lower end of the valve cover (2) is provided with the valve sealing surface (8), the valve body (1) is internally provided with the first ejection valve rod support (3), the first ejection valve rod support (3) is provided with the first valve rod positioning hole (4), one end of the ejection valve rod (5) penetrates through the first valve rod positioning hole (4) on the first ejection valve rod support (3), the valve clack (6) is arranged on the, valve clack (6) bottom is equipped with launches spring (7), valve clack (6) are connected with first ejection valve rod support (3) through launching spring (7), be equipped with second ejection valve rod support (9) on valve gap (2), be equipped with second valve rod locating hole (10) on second ejection valve rod support (9), the other end of launching valve rod (5) passes second valve rod locating hole (10) on second ejection valve rod support (9), the upper end fixedly connected with valve gap support (11) of valve gap (2), install magnetic head (12) on valve gap support (11), the other end of launching valve rod (5) is connected with magnetic head (12) through melting stick (13) certainly.

2. The self-fluxing automatic ejection emergency shut-off valve as claimed in claim 1, wherein: the valve sealing surface (8) at the lower end of the valve cover (2) is an inner conical surface, and the valve clack (6) is provided with a valve clack sealing surface (15) matched with the inner conical surface.

3. The self-fluxing automatic ejection emergency shut-off valve as claimed in claim 1, wherein: and a sealing ring (14) is arranged between the valve body (1) and the valve cover (2).

4. The self-fluxing automatic ejection emergency shut-off valve as claimed in claim 1, wherein: the self-melting rod (13) is made of polyvinyl chloride, and the melting point range of the polyvinyl chloride is 80-85 ℃.

5. The self-fluxing automatic ejection emergency shut-off valve as claimed in claim 1, wherein: the valve body (1) and the valve cover (2) are sleeved in the hose.

6. The self-fluxing automatic ejection emergency shut-off valve as claimed in claim 1, wherein: the magnetic head (12) adopts a permanent magnet or an electromagnet, and the ejection valve rod (5) is made of stainless iron.

Technical Field

The invention belongs to the technical field of valves, and particularly relates to a self-melting type automatic ejection emergency closing valve.

Background

At present, natural gas, coal gas and various liquid oil products used by residents, canteens, industrial production enterprises and service industries in China are delivered to be used or added to be used in a pipeline or gas tank mode, users use the natural gas, the coal gas and the various liquid oil products very conveniently and quickly, and the natural gas and the various liquid oil products are well received by people, but potential fire hazards exist in the use process, if a fire disaster occurs, the pipeline or the gas tank cannot be closed to open an air flow valve in an emergency at the first time, the fire fighting difficulty is increased, and meanwhile, greater fire loss is caused.

Disclosure of Invention

Aiming at the technical problem that fire hazards exist in the pipeline or the gas tank, the invention provides the self-melting type automatic ejection emergency closing valve which is convenient to use, strong in safety and high in efficiency.

In order to solve the technical problems, the invention adopts the technical scheme that:

a self-melting type automatic ejection emergency closing valve comprises a valve body, a valve cover, a first ejection valve rod support, a first valve rod positioning hole, an ejection valve rod, a valve clack, an ejection spring, a valve sealing surface, a second ejection valve rod support, a second valve rod positioning hole, a valve cover support, a magnetic head and a self-melting rod, wherein the valve body is fixedly connected with the valve cover through screw threads, the lower end of the valve cover is provided with the valve sealing surface, the valve body is internally provided with the first ejection valve rod support, the first ejection valve rod support is provided with the first valve rod positioning hole, one end of the ejection valve rod penetrates through the first valve rod positioning hole in the first ejection valve rod support, the ejection valve rod is provided with the valve clack, the bottom of the valve clack is provided with the ejection spring, the valve clack is connected with the first ejection valve rod support through the ejection spring, the valve cover is provided with, the other end of the ejection valve rod penetrates through a second valve rod positioning hole in a second ejection valve rod support, a valve cover support is fixedly connected to the upper end of the valve cover, a magnetic head is mounted on the valve cover support, and the other end of the ejection valve rod is connected with the magnetic head through a self-melting rod.

The valve sealing surface at the lower end of the valve cover is an inner conical surface, and the valve clack is provided with a valve clack sealing surface matched with the inner conical surface.

And a sealing ring is arranged between the valve body and the valve cover.

The self-melting rod is made of polyvinyl chloride, and the melting point range of the polyvinyl chloride is 80-85 ℃.

The valve body and the valve cover are sleeved in the hose.

The magnetic head adopts a permanent magnet or an electromagnet, and the ejection valve rod is made of stainless iron.

Compared with the prior art, the invention has the following beneficial effects:

when a fire disaster occurs, the self-melting rod is melted and falls off, the ejection spring pushes the ejection valve rod and drives the valve clack to bounce, so that the valve clack and the valve sealing surface of the valve cover are combined to seal gas or oil and the like, the natural gas and the like in the pipeline are prevented from leaking, the safety and the rapidity of fire fighting are improved, and potential hidden dangers are reduced for users.

Drawings

FIG. 1 is a schematic structural view of the present invention;

wherein: the valve comprises a valve body 1, a valve cover 2, a first ejection valve rod support 3, a first valve rod positioning hole 4, an ejection valve rod 5, a valve clack 6, an ejection spring 7, a valve sealing surface 8, a second ejection valve rod support 9, a second valve rod positioning hole 10, a valve cover support 11, a magnetic head 12, a self-melting rod 13, a sealing ring 14 and a valve clack sealing surface 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A self-melting type automatic ejection emergency closing valve is shown in figure 1 and comprises a valve body 1, a valve cover 2, a first ejection valve rod support 3, a first valve rod positioning hole 4, an ejection valve rod 5, a valve clack 6, an ejection spring 7, a valve sealing surface 8, a second ejection valve rod support 9, a second valve rod positioning hole 10, a valve cover support 11, a magnetic head 12 and a self-melting rod 13, wherein the valve body 1 is fixedly connected with the valve cover 2 through a screw thread, the lower end of the valve cover 2 is provided with the valve sealing surface 8, the valve body 1 is internally provided with the first ejection valve rod support 3, the first ejection valve rod support 3 is provided with the first valve rod positioning hole 4, one end of the ejection valve rod 5 penetrates through the first valve rod positioning hole 4 on the first ejection valve rod support 3, the ejection valve clack 6 is arranged on the ejection valve rod 5, the ejection spring 7 is assembled at the bottom of the valve clack 6, the ejection valve cla, a second valve rod positioning hole 10 is formed in the second ejection valve rod support 9, the other end of the ejection valve rod 5 penetrates through the second valve rod positioning hole 10 in the second ejection valve rod support 9, a valve cover support 11 is fixedly connected to the upper end of the valve cover 2, a magnetic head 12 is installed on the valve cover support 11, and the other end of the ejection valve rod 5 is connected with the magnetic head 12 through a self-melting rod 13. When a fire disaster happens, when the gas combustion temperature reaches, the self-melting rod 13 is self-ignited quickly and melted and falls, the ejection spring 7 in the valve body 1 is ejected quickly, the ejection valve rod 5 is pushed to push and drive the valve clack 6 to eject, the valve clack 6 and the valve sealing surface 8 of the valve cover 2 are combined to seal gas, meanwhile, the top of the ejection valve rod 5 and the magnetic head 12 on the valve cover 2 generate magnetic force adsorption, the ejection valve rod 5 is fixed to increase the sealing force, and the pressure of the gas in the pipeline pushes and presses the valve clack 6 to the back, so that the valve clack 6 and the valve sealing surface 8 of the valve cover 2.

Further, the valve sealing surface 8 at the lower end of the valve cover 2 is an inner conical surface, the valve flap 6 is provided with a valve flap sealing surface 15 matched with the inner conical surface to generate medium sealing, and the valve flap 6 and the valve sealing surface 8 of the valve cover 2 are combined to seal gas.

Further, a packing 14 is preferably provided between the valve body 1 and the bonnet 2 to prevent gas leakage between the valve body 1 and the bonnet 2.

Further, it is preferable that the material of the self-melting bar 13 is polyvinyl chloride, and the melting point of polyvinyl chloride is in the range of 80 to 85 ℃.

Further, the valve body 1 and the valve cover 2 are sleeved in the hose.

Further, the magnetic head 12 is made of a permanent magnet or an electromagnet, the ejection valve rod 5 is made of stainless iron, and when the self-melting rod is melted, the magnetic force generated by the magnetic head 12 adsorbs and fixes the ejection valve rod 5, so that the sealing force is increased.

The working process of the invention is as follows: the invention is installed at the outlet of the natural gas pipe, when the gas combustion temperature reaches in case of fire, the self-melting rod 13 is quickly self-ignited to melt and fall, the ejection spring 7 in the valve body 1 is quickly bounced to push the ejection valve rod 5 and drive the valve clack 6 to bounce, so that the valve clack 6 is combined with the valve sealing surface 8 of the valve cover 2 to seal gas, meanwhile, the top of the ejection valve rod 5 and the magnetic head 12 on the valve cover 2 generate magnetic adsorption to fix the ejection valve rod 5 to increase the sealing force, and the pressure of the gas in the pipeline pushes against the back of the valve clack 6, so that the valve clack 6 and the valve sealing surface 8 of the valve cover 2 generate better sealing effect, thereby preventing the natural gas in the pipeline from leaking outwards, improving the safety of fire fighting and extinguishing.

Although only the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, and all changes are encompassed in the scope of the present invention.