CN217482083U

CN217482083U - Self-closing valve for domestic pipeline gas

Info

Publication number: CN217482083U
Application number: CN202221450636.2U
Authority: CN
Inventors: 尹作海
Original assignee: Dongguan Dedean Technology Co ltd
Current assignee: Dongguan Dedean Technology Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-09-23
Anticipated expiration: 2032-06-10

Abstract

The utility model provides a household pipeline gas self-closing valve, which comprises an upper cover, wherein the bottom surface and the end surface of the upper cover are provided with a knob, a floating button which can slide relatively is embedded in the knob, and the floating button is connected with a pull rod; the base comprises an air inlet end, an air outlet section and an air chamber, the top surface of the air chamber is sealed by a leather membrane and covers the upper cover, a sealing flange matched with the sealing seat is arranged inside the air chamber, the air inlet end is provided with an over-flow protection device, and the air outlet section is provided with a ball valve; the top surface of the sealing seat is covered and sealed by a sealing cover, the bottom of the sealing seat is provided with a first valve port, the sealing seat is arranged in the air chamber and is matched and sealed with a sealing flange of the air chamber to separate the air chamber into an upper part and a lower part, the sealing cover is provided with a second valve port and a sliding hole, and an iron sheet is arranged on the end surface. The utility model discloses inner structure is simple, low in production cost, and long service life, security when having improved the user and using the gas.

Description

Self-closing valve for domestic pipeline gas

Technical Field

The utility model relates to a gas pipeline self-closing valve field, concretely relates to domestic pipeline gas self-closing valve.

Background

With the progress of society, natural gas gradually enters thousands of households, the use safety of the natural gas is the most concerned of people, particularly gas valves, most of the existing gas valve products only have basic functions of automatic closing of gas stopping, gas leakage and under-pressure, and some high-grade gas valve products have the functions of automatic closing of overpressure and over-flow, but have the problems of high failure rate, short service life and large volume. Therefore, the development of a household pipeline gas self-closing valve becomes a problem to be solved urgently by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model provides a solve above-mentioned not enough, provide domestic pipeline gas self-closing valve.

The above object of the present invention is achieved by the following technical solutions: the household pipeline gas self-closing valve comprises an upper cover, wherein a knob is arranged on the bottom surface and the end surface of the upper cover, a floating button capable of sliding relatively is embedded in the knob, and the floating button is connected with a pull rod; the base comprises an air inlet end, an air outlet section and an air chamber, the top surface of the air chamber is sealed by a leather membrane and covers the upper cover, a sealing flange matched with the sealing seat is arranged inside the air chamber, the air inlet end is provided with an over-flow protection device, and the air outlet section is provided with a ball valve; the top surface of the sealing seat is covered and sealed by a sealing cover, the bottom of the sealing seat is provided with a first valve port, the sealing seat is installed in the air chamber and is matched and sealed with a sealing flange of the air chamber to separate the air chamber into an upper part and a lower part, the sealing seat is provided with a second valve port and a sliding hole, the end surface of the sealing seat is provided with an iron sheet, and the sliding hole is provided with a sliding assembly which is composed of a magnet, a sliding block and a rubber plug.

Preferably, the pull rod penetrates through the membrane in a sealing mode and is connected with the sliding assembly.

Preferably, a rubber plug on the sliding assembly can close and open the first valve port, and the magnet and the iron sheet attract each other.

Preferably, a gap exists between the bottom surface of the sealing seat and the base.

Preferably, when the air chamber is under-pressure, the rubber diaphragm presses downwards to enable the rubber plug to close the first valve port.

Preferably, the knob is lifted up to enable the rubber plug to open the first valve port, and the floating knob is pressed down to enable the rubber plug to close the first valve port.

Preferably, the overflow protection device automatically closes the air inlet of the valve when the air pressure at the air inlet is too high.

Preferably, the ball valve can close or open the valve outlet.

Compared with the prior art, the utility model provides a domestic pipeline gas self-closing valve has following beneficial effect:

the utility model discloses the air chamber of base only is equipped with seal receptacle matched with sealing flange, and air chamber inner structure is simple, and first valve port setting is in the seal receptacle bottom, and the seal receptacle is independent part, and easily secondary operation increases the gas tightness and the life of first valve port in order to guarantee the precision.

Drawings

Fig. 1 is a schematic sectional view of the valve in the closed state.

Fig. 2 is a schematic sectional view of the open state of the valve of the present invention.

Fig. 3 is a schematic cross-sectional view of the over-current protection device of the present invention when triggered.

Fig. 4 is a schematic diagram of the explosion structure of the present invention.

Fig. 5 is a schematic structural diagram of the present invention.

The reference numbers in the figures: the valve comprises an upper cover 1, a floating button 11, a knob 12, a pull rod 13, a base 2, an air chamber 21, a sealing flange 212, an air inlet section 22, an air outlet section 23, a coating 24, an overflow protection device 25, a ball valve 26, a sealing seat 3, a first valve port 31, a sealing cover 32, a second valve port 321, an iron sheet 322, a sliding hole 323, a sliding component 324, a sliding block 3241, a magnet 3242 and a rubber plug 3243.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Referring to fig. 1 to 4, the household pipeline gas self-closing valve includes an upper cover 1, a knob 12 is disposed on a bottom surface and an end surface of the upper cover 1, a floating button 11 capable of sliding relatively is embedded in the knob 12, and the floating button 11 is connected to a pull rod 13; the base 2 comprises an air inlet end, an air outlet section 23 and an air chamber 21, the top surface of the air chamber 21 is sealed by a film 24 and covers the upper cover 1, a sealing flange 212 matched with the sealing seat 3 is arranged in the air chamber 21, the air inlet end is provided with an over-flow protection device 25, and the air outlet section 23 is provided with a ball valve 26; the top surface of the sealing seat 3 is covered and sealed by a sealing cover 32, the bottom of the sealing seat is provided with a first valve port 31, the sealing seat 3 is installed inside the air chamber 21 and is matched and sealed with the sealing flange 212 of the air chamber 21 to separate the air chamber 21 into an upper part and a lower part, the sealing cover 32 is provided with a second valve port 321 and a sliding hole 323, the end surface of the sealing seat is provided with an iron sheet 322, the sliding hole 323 is provided with a sliding assembly 324, and the sliding assembly 324 is composed of a magnet 3242, a sliding block 3241 and a rubber plug 3243.

In a preferred embodiment of the present invention, the pull rod 13 sealingly penetrates the skin 24 to connect the slide assembly 324.

In a preferred embodiment of the present invention, the rubber stopper 3243 of the sliding assembly 324 can close and open the first valve port 31, and the magnet 3242 and the iron piece 322 attract each other.

As a preferred embodiment of the present invention, there is a gap between the bottom surface of the sealing seat 3 and the base 2.

In a preferred embodiment of the present invention, when the air chamber 21 is under-pressurized, the rubber membrane 24 is pressed down to close the rubber stopper 3243 to close the first valve port 31.

In a preferred embodiment of the present invention, the knob 12 is lifted up to open the rubber stopper 3243 to open the first valve port 31, and the float 11 is pressed down to close the rubber stopper 3243 to close the first valve port 31.

As a preferred embodiment of the present invention, the overflow protection device 25 automatically closes the valve air inlet when the air pressure at the air inlet is too high.

As a preferred embodiment of the present invention, the ball valve 26 can close or open the valve outlet.

The utility model provides a domestic pipeline gas self-closing valve's theory of use does:

the self-closing valve is normally closed by manually pressing the float button 11, at this time, the magnet 3242 and the pull rod 13 are in an attraction state (as shown in fig. 2), and the maximum attraction force allows the rubber plug 3243 to firmly block the first valve port 31 so that air flow cannot pass through. When the valve is used, the knob 12 is lifted manually, and the magnet 3242 and the rubber plug 3243 are driven by the pull rod 13 to leave the first valve port 31 to be opened. At the moment, the gas valve pushes up the diaphragm by the air pressure acting force in the pipe network and is always maintained at the lifted position, and the self-closing valve is kept in an open state all the time (as shown in figure 2).

When the pipe network stops air supply and leaks air, the pressure in the valve cavity is reduced, the high-position state of the leather membrane 24 is not enough to be maintained, the valve cavity approaches to the direction of the first valve port 31, the distance between the magnet 3242 and the iron sheet 322 is rapidly reduced, the attraction force reaches the maximum, the rubber plug 3243 rapidly plugs the valve port, and the self-closing function is realized (as shown in figure 1).

When the air pressure of the pipe network is too high, the skin membrane can rapidly swell to the highest position, at this time, the pull rod drives the sliding assembly 324 to collide with the sealing cover 32, the sliding assembly 324 is separated from the pull rod, the magnet 3242 on the sliding assembly 324 is adsorbed on the iron sheet 322, the rubber plug 3243 blocks the first valve port 31, the self-closing valve is in a closed state at this time, and the pipe network air pressure enables the over-flow protection device 25 to be closed, so that the over-flow protection is realized (as shown in fig. 3).

The utility model provides a self-propelled leak hunting principle of domestic pipeline gas self-closing valve:

when the stove is in a closed state, the indoor main valve is opened first, then the self-closing valve is opened, and then the indoor main valve is closed. And observing whether the self-closing valve can be kept in an open state for a certain time by the gas filled in the indoor pipeline, wherein if the gas leakage valve is closed automatically, the faster the gas leakage valve is closed, the more serious the gas leakage is.

the utility model discloses base 2's air chamber 21 only be equipped with seal receptacle 3 matched with sealing flange 212, air chamber 21 inner structure is simple, and first valve port 31 sets up in seal receptacle 3 bottoms, and seal receptacle 3 is independent part, and easy secondary operation increases first valve port 31's gas tightness and life in order to guarantee the precision, the utility model discloses an inner structure is simple, has not only improved production efficiency, reduction in production cost, and when the product design, its outer body volume can be designed less, satisfies people's demand.

The above-mentioned only be the embodiment of the present invention, not consequently the restriction of the patent scope of the present invention, all utilize the equivalent structure or equivalent flow transform made of the content of the specification and the attached drawings, or directly or indirectly use in other relevant technical fields, all including in the same way the patent protection scope of the present invention.

Claims

1. A household pipeline gas self-closing valve is characterized by comprising:

the device comprises an upper cover (1), wherein a knob (12) is arranged on the bottom surface and the end surface of the upper cover (1), a floating button (11) capable of sliding relatively is embedded in the knob (12), and the floating button (11) is connected with a pull rod (13);

the base (2), the base (2) includes an air inlet end, an air outlet section (23) and an air chamber (21), the top surface of the air chamber (21) is sealed by a film (24) and covers the upper cover (1), a sealing flange (212) matched with the sealing seat (3) is arranged in the air chamber (21), the air inlet end is provided with an overflow protection device (25), and the air outlet section (23) is provided with a ball valve (26);

the sealing device comprises a sealing seat (3), the top surface of the sealing seat (3) is covered and sealed by a sealing cover (32), a first valve port (31) is arranged at the bottom of the sealing seat, the sealing seat (3) is installed inside the air chamber (21) and is matched and sealed with a sealing flange (212) of the air chamber (21) to separate the air chamber (21) into an upper part and a lower part, the sealing cover (32) is provided with a second valve port (321) and a sliding hole (323), an iron sheet (322) is installed on the end face of the sealing seat, a sliding assembly (324) is installed in the sliding hole (323), and the sliding assembly (324) is provided with a magnet (3242), a sliding block (3241) and a rubber plug (3243).

2. Household pipe gas self-closing valve according to claim 1, characterized in that said pull rod (13) is hermetically threaded through said membrane (24) in connection with said sliding assembly (324).

3. The household pipeline gas self-closing valve as recited in claim 1, wherein a rubber plug (3243) on the sliding assembly (324) can close or open the first valve port (31), and the magnet (3242) and the iron sheet (322) attract each other.

4. The household gas pipeline self-closing valve as recited in claim 1, characterized in that the bottom surface of the sealing seat (3) is separated from the base (2) by a gap.

5. The household pipeline gas self-closing valve as recited in any one of claims 1 to 2, wherein when the air chamber (21) is under-pressurized, the membrane (24) is pressed down to enable the rubber plug (3243) to close the first valve port (31).

6. The household pipeline gas self-closing valve as recited in any one of claims 1 to 2, wherein the rubber plug (3243) opens the first valve port (31) when the knob (12) is lifted up, and the rubber plug (3243) closes the first valve port (31) when the float button (11) is pressed down.

7. The household gas self-closing valve for pipelines according to claim 1, characterized in that the over-flow protection device (25) automatically closes the valve inlet when the air pressure at the inlet is too high.

8. The gas self-closing valve for household pipes according to claim 1, characterized in that the ball valve (26) can close or open the valve outlet.