CN223424786U - An intelligent gas safety valve - Google Patents

Abstract

The present application discloses an intelligent gas safety valve, comprising a first valve seat, a second valve seat, a valve body, and a drive assembly. The valve body is disposed within a valve cavity and divides the valve cavity into a transition cavity and an air outlet cavity. The transition cavity communicates with an air inlet channel, and the air outlet cavity communicates with an air outlet channel. The valve body further defines a valve port communicating with the transition cavity and the air outlet cavity. The drive assembly comprises a push rod and a membrane connected to the push rod. The membrane can be driven by the push rod to move toward or away from the valve port to open and close the communication between the transition cavity and the air outlet cavity. The transition cavity is disposed within the first seat. The split seat design facilitates the processing of the valve cavity formed after the two are connected. After the valve body is installed within the valve cavity, the valve cavity is divided, so that gas can be retained in the transition cavity after entering from the air inlet channel to disperse the pressure within the valve cavity. Furthermore, before the gas enters the air outlet channel, an air outlet cavity can be provided to provide a buffer, thereby reducing the impact of the instantaneous opening pressure on the valve seat and improving the service life of the entire safety valve.

Description

Intelligent gas safety valve

Technical Field

The application relates to the technical field of gas valves, in particular to an intelligent gas safety valve.

Background

The gas safety valve plays a role in safety protection in a gas system, and can cut off the communication of the pipelines to reduce safety accidents when the pressure in the gas pipeline is too large or too small. The traditional gas safety valve basically adopts a mechanical self-closing valve, and the gas pressure in the valve body acts on the leather membrane to drive the cam sliding block structure to act so as to play a role in opening and closing.

However, the mechanical self-closing valve has a single function, and cannot meet the use requirements of modern users, so that an intelligent gas valve appears in the market. For example, an intelligent gas safety monitoring system and a monitoring method are disclosed in Chinese patent publication No. CN105889616A, which can realize multifunctional detection of pressure, temperature, harmful gas and the like of a gas pipeline and realize data intercommunication with a user through the technology of the Internet of things. However, electronic components such as a circuit board and the like are required to be installed in the valve body, so that the design of a gas pipeline in the valve body is compact, the volume of an inlet cavity of the valve body is small, the pressure of the gas entering the cavity is easily overlarge due to accumulation of the gas in the inlet cavity after the valve core closes the pipeline, and the instantaneous release pressure is easy to cause abrasion of parts in the safety valve after long-term use when the valve core is opened, so that the service life is reduced.

Disclosure of utility model

In order to improve the service life of the safety valve, the application provides an intelligent gas safety valve.

The intelligent gas safety valve provided by the application adopts the following technical scheme:

an intelligent gas safety valve comprising:

The first valve seat comprises a first seat body and an air inlet pipe connected with the first seat body, and the air inlet pipe is provided with an air inlet channel;

The second valve seat comprises a second seat body and an air outlet pipe connected with the second seat body, the air outlet pipe is provided with an air outlet channel, and the first seat body is connected with the second seat body and encloses a valve cavity communicated with the air inlet channel and the air outlet channel;

the valve body is arranged in the valve cavity and separates the valve cavity to form a transition cavity and an air outlet cavity, the transition cavity is communicated with the air inlet channel, the air outlet cavity is communicated with the air outlet channel, the valve body is also provided with a valve port communicated with the transition cavity and the air outlet cavity, and

The driving assembly is arranged on the first seat body and comprises a push rod and a leather membrane connected with the push rod, and the leather membrane can be driven by the push rod to move to one side close to or far from the valve port for communicating the transition cavity with the air outlet cavity;

Wherein, the transition chamber is arranged in the first seat.

Through adopting above-mentioned technical scheme, at first split type pedestal is convenient for process the shape and the volume of valve pocket after both are connected, and the valve body separates the valve pocket after installing in the valve pocket, inlet channel and outlet channel are not direct intercommunication, inlet channel intercommunication transition chamber, outlet channel intercommunication air cavity, make the in-process of admitting air and giving vent to anger all have certain buffer space, especially when the valve port of valve body is stopped up by the involucra, gas enters into the transition intracavity through the inlet channel, because the transition chamber has certain volume to increase the detention space of gas after the inlet end gets into, alleviate the pressure in the valve when the relief valve is closed, simultaneously after the valve port is opened, gas enters into the outlet chamber earlier and is flowing through the outlet channel, a slow flow effect has been realized, reduce the impact of instantaneous opening pressure to the valve inner part, the life of whole relief valve has been improved.

Preferably, the transition cavity encloses the outer surface of the valve body.

By adopting the technical scheme, the volume of the valve body is reduced, the volume of the transition cavity can be further increased, the surface pressure of the valve body is more uniform when fuel gas stays in the transition cavity, and the service life of the valve body is prolonged.

Preferably, the valve body is connected with the second seat body, and a first sealing element is arranged between the end face of the valve body and the second seat body.

By adopting the technical scheme, the first sealing piece improves the tightness between the valve body and the second seat body, and reduces the possibility of conducting the air outlet cavity and the transition cavity.

Preferably, the first seat body comprises a clamping ring extending outwards from the end face, a clamping groove for clamping the clamping ring is formed in the end face of the second seat body, a second sealing element is arranged in the clamping groove, and the end part of the clamping ring is abutted against the second sealing element.

By adopting the technical scheme, the second sealing piece improves the tightness between the first seat body and the second seat body, so that the whole seat body can be blocked from the outside.

Preferably, the first seat body further comprises a driving seat, the driving seat is provided with a mounting opening communicated with the transition cavity, and the leather film is clamped in the mounting opening.

By adopting the technical scheme, the leather membrane is clamped in the mounting port after being connected with the push rod, so that the limiting degree of the leather membrane is improved, and secondly, the driving seat is connected with the first seat body and can be independently used for processing and producing the first seat body, so that the production efficiency is improved.

Preferably, the leather membrane comprises a plug and a ripple compensation part connected with the plug, one end of the push rod is connected with the plug, an annular groove is formed in the outer edge of the mounting opening of the driving seat, and the ripple compensation part comprises a convex ring clamped in the annular groove.

Through adopting above-mentioned technical scheme, the bulge loop is established in the card of annular for the outer fringe of whole involucra obtains further spacing and can also play the sealed effect between drive seat and the external world, and the end cap is in by push rod drive in-process, and ripple compensation portion takes place elastic deformation helping hand in the reset of end cap.

Preferably, the corrugated compensation device further comprises a pressing ring, the pressing ring is connected in the mounting opening, the pressing ring is provided with a containing groove and a guide hole communicated with the containing groove, one end of the push rod penetrates through the guide hole to extend to one side of the containing groove, the corrugated compensation part further comprises a corrugated section, the corrugated section is arranged in the containing groove, and the end part of the pressing ring is abutted against the convex ring.

Through adopting above-mentioned technical scheme, the setting of clamping ring, the slip of push rod in the guiding hole at first improves the guidance quality to the end cap removal. Secondly, through the jump of the pressing ring in the annular groove of the abutting limiting convex ring of the convex ring, the fixation of the leather membrane at the mounting port is better ensured, and the opening and closing stability of the whole safety valve is improved.

Preferably, a third sealing element is further arranged between the pressing ring and the convex ring.

By adopting the technical scheme, the third sealing piece is used as the second seal between the driving seat and the outside to improve the tightness between the leather membrane and the driving seat and reduce the leakage of fuel gas from the joint between the leather membrane and the mounting port.

Preferably, one end of the air inlet pipe is connected with a threaded joint, and the threaded joint is rotationally connected with a butt nut.

Through adopting above-mentioned technical scheme, the setting of docking nut uses as the connecting piece of being connected with external gas pipeline, makes things convenient for the piping connection.

Preferably, the battery pack further comprises a shell, wherein the first valve seat and the second valve seat are both arranged in the shell, a display panel is arranged on the shell, and a battery module is detachably connected in the shell.

Through adopting above-mentioned technical scheme, battery module can supply the power supply of the electronic component in the relief valve to adopt detachable construction to realize the quick detach between battery module and the casing, the whole maintenance operation of being convenient for.

In summary, the present application includes at least one of the following beneficial technical effects:

1. The split type seat body is convenient for processing a valve cavity formed after the split type seat body is connected, the valve cavity is divided after the valve body is arranged in the valve cavity, so that the fuel gas can stay in the transition cavity to disperse the pressure in the valve cavity after entering from the air inlet channel, and the buffer of the air outlet cavity can be realized before the fuel gas enters the air outlet channel, so that the impact of instantaneous opening pressure on the valve seat is reduced, and the service life of the whole safety valve is prolonged;

2. The convex ring clamp with the annular groove in the driving seat for the leather membrane is arranged to play a role in improving the installation stability of the leather membrane, the convex ring is tightly pressed by the combination of the arrangement of the compression ring and the third sealing piece, the installation of the leather membrane in the installation opening is completely limited, and the sealing effect between the driving seat and the outside is improved better.

Drawings

FIG. 1 is a diagram of the external configuration of an intelligent gas safety valve;

FIG. 2 is a cross-sectional view of the intelligent gas safety valve;

FIG. 3 is an exploded view of the intelligent gas safety valve at a viewing angle;

FIG. 4 is an exploded schematic view of the intelligent gas safety valve at another view angle;

FIG. 5 is a schematic view of the structure of the valve body;

Fig. 6 is a schematic view of the installation between a battery module and a case.

The reference numerals are 1, a first valve seat, 11, a first seat body, 111, a transition cavity, 112, a clamping ring, 12, an air inlet pipe, 121, an air inlet channel, 13, a driving seat, 131, an installation hole, 2, a second valve seat, 21, a second seat body, 211, a clamping groove, 22, an air outlet pipe, 221, an air outlet channel, 3, a valve body, 31, an air outlet cavity, 32, a valve port, 4, a driving component, 41, a push rod, 42, a coating, 421, a plug, 422, a corrugated section, 423, a convex ring, 5, a threaded joint, 51, a threaded section, 52, an optical axis section, 53, a compression section, 6, a butt nut, 61, a limiting ring, 7, a first sealing piece, 8, a second sealing piece, 9, a clamping ring, 91, a guide hole, 92, a containing groove, 10, a third sealing piece, 20, a shell, 201, a sliding groove, 30, a display panel, 40, a battery, 50, a retainer, 501, an installation groove, 502 and a clamping block.

Detailed Description

The present application will be described in further detail with reference to the accompanying drawings.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Fig. 1 and 2 show a structure of an intelligent gas safety valve, which comprises a casing 20, a first valve seat 1 and a second valve seat 2 installed in the casing 20, wherein a display panel 30 is arranged on one side surface of the casing 20 for displaying the working state of the safety valve.

Referring to fig. 3 to 5, the first valve seat 1 includes a first seat body 11 and an air inlet pipe 12, in this embodiment, the first seat body 11 and the air inlet pipe 12 are in an integrated structure, the air inlet pipe 12 has an air inlet channel 121, the first seat body 11 is provided with an opening at one side and has a groove with a certain depth, and the air inlet channel 121 is communicated with the groove. The second valve seat 2 includes a second seat body 21 and an air outlet pipe 22, in this embodiment, the second seat body 21 and the air outlet pipe 22 are also in an integrated structure, an air outlet channel 221 is disposed in the air outlet pipe 22, and the first seat body 11 is connected with the second seat body 21, and after the two are connected, a valve cavity is formed to communicate the air inlet channel 121 with the air outlet channel 221.

The intelligent gas safety valve further comprises a valve body 3, wherein the valve body 3 is connected with the second seat body 21 through a fastener and is arranged in the valve cavity, and meanwhile, the valve cavity is divided into a transition cavity 111 and an air outlet cavity 31 by the valve body 3. The transition cavity 111 is disposed in the first seat 11, the air outlet cavity 31 is formed in the valve body 3, the transition cavity 111 is communicated with the air inlet channel 121, the air outlet cavity 31 is communicated with the air outlet channel 221, the valve body 3 is further provided with a valve port 32 for communicating the transition cavity 111 with the air outlet cavity 31, the transition cavity 111 is enclosed at the outer surface of the valve body 3, the cross-sectional area of the transition cavity 111 is larger than the cross-sectional areas of the air inlet channel 121 and the air outlet channel 221, and particularly, after fuel gas enters the transition cavity 111 from the air inlet channel 121, the fuel gas can be rapidly diffused to reduce pressure concentration.

It should be noted that, the valve port 32 is disposed at a position offset from the inlet channel 121 and the outlet channel 221, so that the flow path of the fuel gas is S-shaped to reduce the kinetic energy of the fuel gas and reduce the impact on the components in the valve.

In order to improve the tightness of the connection between the first valve seat 1 and the second valve seat 2, a first seal 7 is provided between the valve body 3 and the second seat body 21. The first seat body 11 extends outwards to be provided with a snap ring 112 at the terminal surface, and the draw-in groove 211 has been seted up in terminal surface department to the second seat body 21, realizes being connected between first disk seat 1 and the second disk seat 2 through the block of snap ring 112 and draw-in groove 211, still is provided with second sealing member 8 in the draw-in groove 211 simultaneously, and the tip of snap ring 112 is contradicted on second sealing member 8, improves the leakproofness between two disk seats and the external world through the twice seal.

The intelligent gas safety valve further comprises a driving assembly 4, a driving seat 13 is integrally arranged on the first seat body 11, a mounting opening 131 communicated with the transition cavity 111 is formed in the driving seat 13, and the driving assembly 4 is arranged in the mounting opening 131. Further, the driving assembly 4 includes a push rod 41 and a film 42 connected to the push rod 41, wherein one end of the push rod 41 extends from the mounting opening 131 toward the valve port 32.

The coating 42 comprises a plug 421 and a ripple compensation part connected with the plug 421, one end of the push rod 41 is connected with the plug 421, the plug 421 can be driven by the push rod 41 to move away from or close to one side of the valve port 32, and the valve port 32 can be opened or closed so as to realize the communication between the transition cavity 111 and the air outlet cavity 31.

The driving seat 13 is also provided with an annular groove, the ripple compensation part comprises a ripple section 422 and a convex ring 423 connected with the ripple section 422, and the convex ring 423 is clamped in the annular groove so as to seal the communication between the transition cavity 111 and the outside of the driving seat 13. The bellows 422 provides a certain elastic deformability of the plug 421 such that the plug 421 provides a certain restoring force when moving away from the valve port 32. The intelligent gas safety valve further comprises a pressing ring 9 and a third sealing piece 10, wherein the pressing ring 9 is in threaded connection with the mounting opening 131, the pressing ring 9 comprises a guide hole 91 arranged in the middle and a containing groove 92 communicated with the guide hole 91, the push rod 41 is in sliding connection with the guide hole 91, and the corrugated section 422 is arranged in the containing groove 92 to limit horizontal movement of the corrugated section 422. The third sealing element 10 is abutted against the convex ring 423, and meanwhile, the end part of the pressing ring 9 is abutted against the third sealing element 10 to further limit and seal the convex ring 423 in the ring groove. In this embodiment, the first seal 7, the second seal 8 and the third seal 10 are rubber seals.

This intelligent gas safety valve still includes a screwed joint 5 and a butt joint nut 6, screwed joint 5 and intake pipe 12 threaded connection, and screwed joint 5 is including screw thread section 51, optical axis section 52 and the section 53 that compresses tightly that connect gradually, and butt joint nut 6 has the spacing ring 61 of being connected with optical axis section 52 rotation, and spacing ring 61 contradicts with compressing tightly section 53 in order to spacing butt joint nut 6 axial float, when being connected with external gas pipeline, only need be connected with butt joint nut 6, through rotating the realization pipe connection that butt joint nut 6 can be convenient.

Referring to fig. 6, the intelligent gas safety valve further includes a battery 40 module, the battery 40 module includes a holder 50 and a plurality of batteries 40 mounted on the holder, the battery 40 in this embodiment is a dry battery 40, a plurality of mounting slots 501 for clamping the battery 40 are formed on the holder 50, two ends of the holder 50 extend outwards to form clamping blocks 502, a sliding groove 201 is formed at the inner surface of the housing 20, and the clamping blocks 502 are connected with the sliding groove 201, so that the battery 40 module and the housing 20 can be disassembled and assembled in a sliding manner.

In this embodiment, the axial driving manner of the push rod may be an electromagnetic push rod or an electric cylinder push rod.

The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.

Claims (10)

1. An intelligent gas safety valve, characterized by comprising:

the valve comprises a first valve seat (1), wherein the first valve seat (1) comprises a first seat body (11) and an air inlet pipe (12) connected with the first seat body (11), and the air inlet pipe (12) is provided with an air inlet channel (121);

the second valve seat (2), the second valve seat (2) comprises a second seat body (21) and an air outlet pipe (22) connected with the second seat body (21), the air outlet pipe (22) is provided with an air outlet channel (221), and the first seat body (11) is connected with the second seat body (21) and encloses a valve cavity which is communicated with the air inlet channel (121) and the air outlet channel (221);

The valve body (3) is arranged in the valve cavity and separates the valve cavity to form a transition cavity (111) and an air outlet cavity (31), the transition cavity (111) is communicated with the air inlet channel (121), the air outlet cavity (31) is communicated with the air outlet channel (221), the valve body (3) is also provided with a valve port (32) which is communicated with the transition cavity (111) and the air outlet cavity (31), and

The driving assembly (4) is arranged on the first seat body (11), the driving assembly (4) comprises a push rod (41) and a film (42) connected with the push rod (41), and the film (42) can be driven by the push rod (41) to move to the side close to or far from the valve port (32) for communicating the switching cavity with the air outlet cavity (31);

Wherein the transition cavity (111) is arranged in the first seat body (11).

2. An intelligent gas safety valve according to claim 1, characterized in that the transition chamber (111) encloses the outer surface of the valve body (3).

3. An intelligent gas safety valve according to claim 1, characterized in that the valve body (3) is connected with the second seat (21), and a first sealing member (7) is arranged between the end surface of the valve body (3) and the second seat (21).

4. An intelligent gas safety valve according to claim 1 or 3, wherein the first seat body (11) comprises a clamping ring (112) extending outwards from an end surface, the second seat body (21) is provided with a clamping groove (211) for clamping the clamping ring (112) at the end surface, a second sealing element (8) is arranged in the clamping groove (211), and the end part of the clamping ring (112) is abutted against the second sealing element (8).

5. The intelligent gas safety valve according to claim 1, wherein the first seat body (11) further comprises a driving seat (13), the driving seat (13) is provided with a mounting opening (131) communicated with the transition cavity (111), and the coating film (42) is clamped in the mounting opening (131).

6. The intelligent gas safety valve according to claim 5, wherein the coating film (42) comprises a plug (421) and a ripple compensation part connected with the plug (421), one end of the push rod (41) is connected with the plug (421), the driving seat (13) is provided with a ring groove at the outer edge of the mounting opening (131), and the ripple compensation part comprises a convex ring (423) clamped in the ring groove.

7. The intelligent gas safety valve according to claim 6, further comprising a pressing ring (9), wherein the pressing ring (9) is connected in the mounting opening (131), the pressing ring (9) is provided with a containing groove (92) and a guide hole (91) communicated with the containing groove (92), one end of the push rod (41) penetrates through the guide hole (91) to extend to one side of the containing groove (92), the ripple compensation part further comprises a ripple section (422), the ripple section (422) is arranged in the containing groove (92), and the end part of the pressing ring (9) is abutted against the convex ring (423).

8. The intelligent gas safety valve according to claim 7, wherein a third sealing member (10) is further arranged between the pressure ring (9) and the convex ring (423).

9. An intelligent gas safety valve according to claim 1, characterized in that one end of the gas inlet pipe (12) is connected with a threaded joint (5), and the threaded joint (5) is rotatably connected with a butt nut (6).

10. The intelligent gas safety valve according to claim 1, further comprising a housing (20), wherein the first valve seat (1) and the second valve seat (2) are both installed in the housing (20), a display panel (30) is arranged on the housing (20), and a battery (40) module is detachably connected in the housing (20).