CN212338332U

CN212338332U - Natural gas emergency cut-off valve convenient to connect

Info

Publication number: CN212338332U
Application number: CN202022083138.6U
Authority: CN
Inventors: 张利
Original assignee: Sichuan Yicheng Precision Machinery Co ltd
Current assignee: Sichuan Yicheng Precision Machinery Co ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-01-12
Anticipated expiration: 2030-09-22

Abstract

The utility model discloses a natural gas emergency cut-off valve convenient for connection, which comprises a valve body and a mounting port arranged on the upper end surface of the valve body and used for mounting a throttling component, wherein a flow cavity for fluid to pass through is arranged inside the valve body, a first connecting pipe communicated with the flow cavity is arranged on the left side of the valve body, a second connecting pipe communicated with the flow cavity is arranged on the right side of the valve body, inner channels corresponding to the first connecting pipe and the second connecting pipe are respectively arranged on the left side and the right side of the flow cavity, splicing channels convenient for inserting an inserting pipe to realize pre-connection are arranged inside the first connecting pipe and the second connecting pipe, sealing components matched with the inserting pipe are arranged at the end parts of the first connecting pipe and the second connecting pipe, the utility model is designed aiming at the defect of the existing threaded connection, the whole connecting part is divided into a locking area and a sealing area, thus a rotating, need not to beat and glue yet, help improving the efficiency of work, the practicality is strong.

Description

Natural gas emergency cut-off valve convenient to connect

Technical Field

The utility model relates to a natural gas line jointing equipment technical field specifically is a natural gas emergency cut-off valve convenient to connect.

Background

Natural gas is one of the safer fuel gases, does not contain carbon monoxide, is lighter than air, immediately diffuses upwards once leaked, is not easy to accumulate to form explosive gas, and has higher safety than other fuel gases. The natural gas is adopted as energy, so that the consumption of coal and petroleum can be reduced, and the problem of environmental pollution is greatly improved; as a clean energy, the natural gas can reduce the emission of sulfur dioxide and dust by nearly 100 percent, reduce the emission of carbon dioxide by 60 percent and reduce the emission of nitrogen oxide by 50 percent, is favorable for reducing the formation of acid rain, slows down the global greenhouse effect and fundamentally improves the environmental quality. Natural gas as automobile fuel has the advantages of high unit heat value, small exhaust pollution, reliable supply, low price and the like, and has become the development direction of the world clean fuel for automobiles, while natural gas automobiles have become new energy automobiles which are fastest in development and most in use amount.

The pipeline is needed to be used to the natural gas when the transmission, and the trip valve need be set up on the pipeline for controlling the air current to flow, and current trip valve adopts threaded connection when connecting, because the restriction of pipeline length and weight, this kind of threaded connection mode is very inconvenient, to above-mentioned problem, provides the natural gas emergency trip valve convenient to connect now.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a natural gas emergency cut-off valve convenient to connect to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a natural gas emergency cut-off valve convenient to connect, includes the valve body and sets up the installing port that is used for installing throttling element at its up end, the inside flow chamber that is used for the fluid to pass through that is equipped with of valve body, the valve body left side is equipped with the first connecting pipe with flow chamber intercommunication, the valve body right side is equipped with the second connecting pipe with flow chamber intercommunication, flow chamber left and right sides is equipped with an interior passageway corresponding with first connecting pipe, second connecting pipe respectively, the inside grafting passageway that is convenient for the intubate to insert in order to realize the pre-connection that all is equipped with of first connecting pipe and second connecting pipe, first connecting pipe or second connecting pipe and intubate are connected fixedly through the retaining member;

the locking piece comprises a polygonal locking surface which is formed by forcibly pressing the first connecting pipe or the second connecting pipe and the insertion pipe through a hydraulic tool.

As a further aspect of the present invention: the inner channel is coaxially arranged with the first connecting pipe and the second connecting pipe.

As a further aspect of the present invention: the diameter of the insertion channel is smaller than that of the inner channel.

As a further aspect of the present invention: and metal aluminum layers with good ductility are arranged on the inner walls of the first connecting pipe and the second connecting pipe.

As a further aspect of the present invention: the polygonal locking surface is preferably hexagonal.

As a further aspect of the present invention: sealing member is including setting up the bulge loop in first connecting pipe or second connecting pipe tip, and the bulge loop outer end is equipped with the port that matches with grafting passageway diameter, and the effect that blocks of this kind of arcwall face is better, is favorable to preventing extruding of sealing washer, and the bulge loop inside packing has the sealing washer with intubate outer wall matched with.

As a further aspect of the present invention: the inner wall of one side of the protruding ring close to the inserting channel is a conical surface, and the inner wall of the protruding ring close to the port is an arc-shaped surface.

As a further aspect of the present invention: the outer end of the sealing ring is flush with the port.

As a further aspect of the present invention: the end of the sealing ring at the port is provided with a chamfer which is convenient for inserting the insertion tube.

As a further aspect of the present invention: the inner end of the sealing ring extends to the interior of the plug channel.

As a further aspect of the present invention: the sealing ring is made of elastic materials.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses drawback to current threaded connection designs, falls into locking region and sealed area with whole coupling part, just so need not rotating device when using, also need not to beat and glue, helps improving the efficiency of work, and the practicality is strong.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a left side view of the structure of the present invention.

Wherein: the valve comprises a valve body 11, a first connecting pipe 12, a mounting port 13, an inner channel 14, a second connecting pipe 15, a sealing part 16, a port 17, a plug-in channel 18 and a sealing ring 19.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, in the embodiment of the present invention, an easy-to-connect emergency shut-off valve for natural gas comprises a valve body 11 and a mounting port 13 disposed on an upper end surface of the valve body for mounting a throttling component, a flow chamber for fluid to pass through is disposed inside the valve body 11, a first connecting pipe 12 communicated with the flow chamber is disposed on a left side of the valve body 11, a second connecting pipe 15 communicated with the flow chamber is disposed on a right side of the valve body 11, inner passages 14 corresponding to the first connecting pipe 12 and the second connecting pipe 15 are disposed on a left side and a right side of the flow chamber, respectively, the inner passages 14 are disposed coaxially with the first connecting pipe 12 and the second connecting pipe 15, insertion passages 18 for facilitating insertion of insertion pipes to achieve pre-connection are disposed inside the first connecting pipe 12 and the second connecting pipe 15, a diameter of the insertion passages 18 is smaller than a diameter of the inner passages 14, end portions of the first connecting pipe 12 and the second connecting pipe 15 are provided, the first connecting pipe 12 or the second connecting pipe 15 is fixedly connected with the intubation tube through a locking piece;

the locking piece comprises a polygonal locking surface which is formed by forcibly extruding the first connecting pipe 12 or the second connecting pipe 15 and the insertion pipe through a hydraulic tool, the connecting pipe and the insertion pipe are tightly pressed and locked to realize connection in a locking mode, and the connection is not involved in sealing and is only used for fixing the two pipe fittings;

the inner walls of the first connecting pipe 12 and the second connecting pipe 15 are provided with metal aluminum layers with good ductility, so that after the first connecting pipe 12 or the second connecting pipe 15 and the insertion pipe are extruded and formed, the sealing performance between the two pipe fittings is better;

the polygonal locking surface is preferably hexagonal;

sealing member 16 is including setting up the protruding ring at first connecting pipe 12 or second connecting pipe 15 tip, and protruding ring outer end is equipped with the port 17 that matches with grafting passageway 18 diameter, protruding ring one side inner wall that is close to grafting passageway 18 is the conical surface, the inner wall that protruding ring is close to port 17 is the arcwall face, and the effect that blocks of this kind of arcwall face is better, is favorable to preventing extruding of sealing washer 19, and protruding ring inside packing has the sealing washer 19 with intubate outer wall matched with, sealing washer 19 inner extends to inside the grafting passageway 18, because sealing washer 19 is made for elastic material, extends to like this and can flow to protruding ring inside when inserting the inside part of passageway 18 and receiving the extrusion, will make the inside 16 extrusion of protruding ring inseparabler like this, the effectual sealed effect that has improved.

The utility model discloses a theory of operation is: this application is through inserting the intubate in grafting passageway 18, then with first connecting pipe 12 or the extrusion deformation of second connecting pipe 15, it is fixed to make first connecting pipe 12 or second connecting pipe 15 and sticiss between the grafting pipe, the extrusion deformation here becomes the polygon, just so prevent to peg graft and rotate between pipe and the connecting pipe, the reliability of connecting has been guaranteed, utilize seal part to guarantee the leakproofness between grafting pipe and the connecting pipe, this kind of connected mode is simple and convenient, reliability, the drawback that current connected mode exists has been eliminated.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A natural gas emergency shut-off valve convenient to connect comprises a valve body (11) and a mounting port (13) arranged on the upper end face of the valve body and used for mounting a throttling component, wherein a flow cavity used for fluid to pass through is formed in the valve body (11), and a first connecting pipe (12) communicated with the flow cavity is arranged on the left side of the valve body (11);

the valve is characterized in that a second connecting pipe (15) communicated with a flow cavity is arranged on the right side of the valve body (11), inner channels (14) corresponding to the first connecting pipe (12) and the second connecting pipe (15) are respectively arranged on the left side and the right side of the flow cavity, inserting channels (18) convenient for inserting insertion pipes to realize pre-connection are arranged in the first connecting pipe (12) and the second connecting pipe (15), sealing parts (16) matched with the insertion pipes are arranged at the end parts of the first connecting pipe (12) and the second connecting pipe (15), and the second connecting pipe (15) or the first connecting pipe (12) and the insertion pipes are fixedly connected through locking parts;

the locking piece comprises a polygonal locking surface which is formed by forcibly pressing the first connecting pipe (12) or the second connecting pipe (15) and the insertion pipe through a hydraulic tool.

2. The natural gas quick action valve easy to connect as claimed in claim 1, wherein the inner channel (14) is arranged coaxially with the first connecting pipe (12) and the second connecting pipe (15).

3. The quick disconnect valve for natural gas as claimed in claim 1, wherein the diameter of the plug channel (18) is smaller than the diameter of the inner channel (14).

4. The natural gas quick action valve easy to connect as claimed in claim 1, wherein the inner walls of the first connecting pipe (12) and the second connecting pipe (15) are provided with a ductile metallic aluminum layer.

5. The easy-to-connect natural gas quick emergency valve according to claim 1, wherein the polygonal locking surface is hexagonal.

6. The natural gas emergency shut-off valve convenient to connect of claim 1, wherein the sealing component (16) comprises a raised ring arranged at the end of the first connecting pipe (12) or the second connecting pipe (15), the outer end of the raised ring is provided with a port (17) with a diameter corresponding to that of the plugging channel (18), the inner part of the raised ring is filled with a sealing ring (19) matched with the outer wall of the plugging pipe, and the sealing ring (19) is made of elastic material.

7. The natural gas emergency shut-off valve convenient to connect of claim 6, characterized in that, the inner wall of one side of the raised ring close to the plugging channel (18) is a conical surface, and the inner wall of the raised ring close to the port (17) is an arc surface.

8. The quick disconnect natural gas emergency valve of claim 6 wherein the outer end of the seal ring (19) is flush with the port (17).

9. The natural gas quick action valve easy to connect as claimed in claim 8, wherein the end of the sealing ring (19) at the port (17) is provided with a chamfer for inserting the insertion tube.

10. The quick disconnect valve for natural gas convenient to connect of claim 6, characterized in that the inner end of the sealing ring (19) extends to the inside of the plug channel (18).