CN213017806U

CN213017806U - Outdoor air valve

Info

Publication number: CN213017806U
Application number: CN202021597608.4U
Authority: CN
Inventors: 鲜成松
Original assignee: Ningbo Backpacker Outdoor Technology Co ltd
Current assignee: Ningbo Backpacker Outdoor Technology Co ltd
Priority date: 2020-08-03
Filing date: 2020-08-03
Publication date: 2021-04-20
Anticipated expiration: 2030-08-03

Abstract

The utility model provides an outdoor pneumatic valve belongs to outdoor stove accessory technical field, include: the valve comprises a valve body and a valve core, wherein a gas inlet interface, a gas outlet interface, a first channel, a second channel, a valve cavity and a third channel are formed in the valve body, the first channel is connected with the gas inlet interface, two ends of the second channel are respectively communicated with the first channel and the valve cavity, two ends of the third channel are respectively communicated with the valve cavity and the gas outlet interface, and the valve core is arranged in the valve cavity and can block the second channel. The utility model has the advantages that: the outdoor air valve has a very reliable structure and can prevent the gas in the air tank from leaking out of the air valve.

Description

Outdoor air valve

Technical Field

The utility model belongs to the technical field of outdoor stove accessory, a outdoor pneumatic valve is related to.

Background

An outdoor gas valve is an accessory on an outdoor stove, which can connect a gas tank with the stove and regulate the flow of gas.

The pneumatic valve of current outdoor stove, closing the state of not taking off the gas pitcher, the high-pressure gas of gas pitcher can exist and close the shutoff and be in between the sealing washer, and after long-time the use, the sealing washer can produce wearing and tearing, and under the high-pressure condition, the sealing washer can leak gas a little or leak gas between, produces the potential safety hazard very easily.

Disclosure of Invention

The utility model aims at the above-mentioned problem that prior art exists, provide an outdoor pneumatic valve.

The purpose of the utility model can be realized by the following technical proposal: an outdoor gas valve comprising: the valve comprises a valve body and a valve core, wherein a gas inlet interface, a gas outlet interface, a first channel, a second channel, a valve cavity and a third channel are formed in the valve body, the first channel is connected with the gas inlet interface, two ends of the second channel are respectively communicated with the first channel and the valve cavity, two ends of the third channel are respectively communicated with the valve cavity and the gas outlet interface, and the valve core is arranged in the valve cavity and can block the second channel.

Preferably, the valve core includes a valve rod and a sealing end, the valve rod is movably disposed in the valve cavity, the sealing end is disposed at an end of the valve rod, the sealing end is disposed in the second passage in a penetrating manner, and when the valve rod moves toward the second passage, the sealing end blocks the second passage.

Preferably, the sealing end is a conical shaft body structure, and the diameter of one end of the sealing end connected with the valve rod is large and the diameter of the other end is small.

Preferably, the valve rod is sleeved with at least one sealing ring, the sealing ring blocks the valve cavity and forms a sealing part in the valve cavity, and the sealing part is isolated from the air inlet interface through the sealing end.

Preferably, the end of the valve rod penetrates out of the valve cavity and forms a knob end.

Preferably, an internal thread is arranged in the valve cavity, an external thread block is arranged on the valve rod, and the external thread block is connected with the internal thread.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the outdoor air valve has a very reliable structure and can prevent the gas in the air tank from leaking out of the air valve.

2. When the air valve is closed, the valve core seals the second channel, so that the gas in the gas tank connected to the gas inlet interface cannot enter the valve cavity, and the valve cavity is in a zero-pressure state, so that the gas does not have a chance to bypass the sealing ring to escape from the right side of the valve cavity.

3. When the sealing end stretches into the second channel, the second channel can be blocked up due to the fact that the part with the large diameter of the sealing end penetrates into the second channel, and when the sealing end withdraws from the second channel, a gap for gas to flow out is formed between the second channel and the sealing end.

Drawings

Fig. 1 is a schematic structural view of the outdoor air valve of the present invention.

Fig. 2 is a schematic diagram of the outdoor air valve of the present invention in an open state.

Fig. 3 is a schematic structural diagram of the sealing end of the present invention.

Fig. 4 is a structural view of a conventional gas valve.

In the figure, 100, valve body; 110. an air inlet interface; 120. an air outlet interface; 130. a first channel; 140. a second channel; 150. a valve cavity; 151. an internal thread; 152. a sealing part; 160. a third channel; 200. a valve core; 210. a valve stem; 211. a knob end; 212. an external thread block; 220. sealing the end head; 230. and (5) sealing rings.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2 and 3, an outdoor gas valve comprises: the valve comprises a valve body 100 and a valve core 200, wherein the valve body 100 is provided with an air inlet interface 110, an air outlet interface 120, a first channel 130, a second channel 140, a valve cavity 150 and a third channel 160.

In a practical structure, the air inlet interface 110 is a hole-shaped structure and is positioned at the upper end or the lower end of the valve body 100, and the air inlet interface 110 is used for being butted with an air tank; the outlet interface 120 and the valve cavity 150 are both of a porous structure and are respectively located on two sides of the valve body 100, the first channel 130, the second channel 140 and the third channel 160 are also of a porous structure, the outlet interface 120 is connected with an air pipe, and the valve cavity 150 is used for accommodating the valve core 200.

It should be noted that the valve cavity 150 is an open structure, and the valve core 200 penetrates into the valve cavity 150 from the open end of the valve cavity 150, so in the conventional structure, gas can leak from the valve cavity 150, but the gas valve in the present embodiment can prevent gas leakage from the valve cavity 150.

The first passage 130 is connected to the air inlet interface 110, and two ends of the second passage 140 are respectively communicated with the first passage 130 and the valve chamber 150, preferably, the first passage 130 is connected to the second passage 140, the first passage 130 is in a vertical hole structure, the second passage 140 is in a transverse hole structure, and the air inlet interface 110 can be communicated with the valve chamber 150 through the first passage 130 and the second passage 140.

Both ends of the third channel 160 are respectively communicated with the valve cavity 150 and the outlet interface 120, preferably, the third channel 160 is actually a connecting hole between the valve cavity 150 and the outlet interface 120, and is communicated with the outlet interface 120 through the third channel 160 via the valve cavity 150.

The valve element 200 is disposed in the valve chamber 150 and can block the second passage 140, and preferably, the valve element 200 can move to block the second passage 140 when the valve element 200 moves toward the second passage 140, so that the air inlet interface 110 is isolated from the valve chamber 150.

As shown in fig. 4, it should be noted here that, in the prior art, the valve core 200 generally blocks the air outlet channel, at this time, one end of the air inlet is communicated with the valve cavity 150, the valve cavity 150 is actually an open structure, at this time, the valve cavity of the existing air valve is in a high-pressure state, in short, the air valve of the existing outdoor stove is in a state that the air tank is not taken down when being closed, the high-pressure air of the air tank exists between the sealing rings when the sealing ring is closed; after long-time use, the sealing ring can be worn, and after long-time use, the sealing ring can be worn, so that even if the valve core is closed, the defect of air leakage can be overcome. In the present embodiment, when the gas valve is closed, the valve core 200 seals the second passage 140, so that the gas in the gas tank connected to the gas inlet port 110 cannot enter the valve cavity 150, and at this time, the valve cavity 150 is in a zero-pressure state, so that the gas cannot escape from the valve cavity 150, and in short, the gas does not have a chance to escape from the right side of the valve cavity by bypassing the sealing ring.

As shown in fig. 1, 2 and 3, based on the above embodiment, the valve core 200 includes the valve rod 210 and the sealing end 220, the valve rod 210 is movably disposed in the valve cavity 150, and the sealing end 220 is disposed at the end of the valve rod 210, and preferably, the valve core 200 has a stepped shaft structure, so that the valve rod 210 and the sealing end 220 at the end of the valve rod 210 are provided, and the valve rod 210 can move along the valve cavity 150 with the sealing end 220.

The sealing tip 220 may be considered as a plug structure in nature, and the sealing tip 220 is disposed through the second channel 140 such that the sealing tip 220 blocks the second channel 140 when the valve stem 210 is moved toward the second channel 140.

Preferably, the stem 210 can seal the second channel 140 or open the second channel 140 by moving in the second channel 140, and the specific principle is that when the stem 210 is far away from the second channel 140, the openings formed between the first channel 130 and the second channel 140 and the valve cavity 150 become larger, so that the gas can enter the valve cavity 150 from the second channel 140, and the larger the distance of the stem 210 from the second channel 140 is, the larger the opening is, the larger the flow rate of the gas flowing into the valve cavity 150 is.

It should be noted that, with the above-mentioned structure, the second channel 140 can be blocked or opened, when the gas valve is closed, the gas is blocked in the first channel 130 and the gas inlet interface 110, and at this time, the gas cannot enter the valve cavity 150, so the gas pressure in the valve cavity 150 is relatively low, thereby preventing the gas from leaking out from the opening of the valve cavity 150, and when the second channel 140 is opened, the gas can enter the valve cavity 150 and then flow out from the gas outlet interface 120 along the third channel 160.

As shown in fig. 1, 2 and 3, in the above embodiment, the sealing head 220 has a tapered shaft structure, and one end of the sealing head 220 connected to the valve stem 210 has a large diameter and the other end has a small diameter.

It should be noted here that the sealing tip 220 has a small front end diameter and a large rear end diameter, and the diameter is gradually increased, so that a tapered structure can be formed, specifically, the sealing tip 220 has a tapered tip structure, when the sealing tip 220 extends into the second channel 140, since the larger diameter portion of the sealing tip 220 penetrates into the second channel 140, the second channel 140 can be blocked, and when the sealing tip 220 is withdrawn from the second channel 140, a gap for the gas to flow out is formed between the second channel 140 and the sealing tip 220.

For example, if the diameter of the second channel 140 is a, the diameter of the front end of the sealing tip 220 is smaller than a, and the diameter is gradually increased, so that a part of the sealing tip 220 has a diameter larger than a, thereby forming a conical structure, and thus, the effect of closing the second channel 140 or opening the second channel 140 is achieved.

As shown in fig. 1, on the basis of the above embodiment, at least one sealing ring 230 is sleeved on the valve stem 210, the sealing ring 230 seals the valve cavity 150 and forms a sealing part 152 in the valve cavity 150, and the sealing part 152 is isolated from the air inlet interface 110 by the sealing head 220.

It should be noted here that two sealing rings 230 may be sleeved on the valve stem 210, and the sealing ring 230 seals the bore-shaped valve cavity 150, so that a sealing portion 152 is formed between the sealing ring 230 and the end of the valve cavity 150, and the sealing portion 152 can prevent gas from flowing out of the valve cavity 150, thereby achieving the effect of preventing gas leakage.

Preferably, in the present embodiment, the sealing portion 152 has a zero-pressure cavity structure, so that there is no chance that gas will escape from the right side of the valve cavity by bypassing the sealing ring 230, thereby achieving the effect of preventing gas leakage.

As shown in fig. 1, in the above embodiment, the end of the valve stem 210 penetrates the valve cavity 150 and forms a knob end 211.

Preferably, axial movement of the valve stem 210 is achieved by rotation, i.e., rotation of the valve stem 210 causes the valve stem 210 to move within the valve cavity 150, and the rear end of the valve stem 210 extends through the valve cavity 150, such that turning the end of the knob causes the valve stem 210 to rotate.

As shown in fig. 1, in addition to the above embodiment, an internal thread 151 is provided in the valve chamber 150, and an external thread block 212 is provided on the valve stem 210, wherein the external thread block 212 is connected to the internal thread 151.

Preferably, the valve stem 210 is in threaded connection with the valve cavity 150, and the external thread block 212 is in a stepped annular protrusion structure and can be connected with the internal thread 151 through external threads, so that the valve stem 210 can be driven to move when the valve stem 210 is rotated.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. An outdoor gas valve, comprising: the valve comprises a valve body and a valve core, wherein a gas inlet interface, a gas outlet interface, a first channel, a second channel, a valve cavity and a third channel are formed in the valve body, the first channel is connected with the gas inlet interface, two ends of the second channel are respectively communicated with the first channel and the valve cavity, two ends of the third channel are respectively communicated with the valve cavity and the gas outlet interface, and the valve core is arranged in the valve cavity and can block the second channel.

2. An outdoor gas valve as claimed in claim 1, characterized in that: the valve core comprises a valve rod and a sealing end head, the valve rod is movably arranged in the valve cavity, the sealing end head is arranged at the end part of the valve rod, the sealing end head is arranged in the second channel in a penetrating mode, and when the valve rod moves towards the second channel, the sealing end head blocks the second channel.

3. An outdoor gas valve as claimed in claim 2, characterized in that: the sealing end is of a conical shaft body structure, and the diameter of one end, connected with the valve rod, of the sealing end is large, and the diameter of the other end of the sealing end is small.

4. An outdoor gas valve as claimed in claim 3, characterized in that: the valve rod is sleeved with at least one sealing ring, the valve cavity is blocked by the sealing ring, a sealing part is formed in the valve cavity, and the sealing part is isolated from the air inlet interface through the sealing end.

5. An outdoor gas valve as claimed in claim 2, characterized in that: the tail end of the valve rod penetrates out of the valve cavity and forms a knob end.

6. An outdoor gas valve according to claim 2 or 5, characterized in that: the valve cavity is internally provided with internal threads, the valve rod is provided with an external thread block, and the external thread block is connected with the internal threads.