CN217382548U - Pipe-off leakage-proof valve - Google Patents

Abstract

The utility model belongs to the technical field of leak protection gas device, a takeoff leak protection valve is provided, including valve body, sealing plug, opening piece and driving piece, air duct and air channel have been seted up to the valve body, and the sealing plug holding exposes outside the valve body in the air duct, and the second end of opening piece is worn to locate in the air channel, and the one end butt of opening piece is kept away from with the cell wall and the sealing plug of air duct respectively at the both ends of driving piece. The application provides a takeoff pipe leak protection valve has adopted the opening piece, driving piece and sealing plug cooperation, under normal gas state, the opening piece can push down the passageway of ventilating that the valve body was kept away from to the sealing plug under ordering about of air cock, realize the gas circulation, and under the condition that the gas-supply pipe accident drops, the opening that the sealing plug will be connected with the air channel is closed in the driving piece can order about, the realization cuts off the passageway of gas circulation, gas has prevented from the end output of giving vent to anger of gas-supply pipe, thereby the rubber tube of having solved connection gas device effectively drops and can arouse the technical problem that the liquefied gas leaked.

Description

Pipe-off leakage-proof valve

Technical Field

The application belongs to the technical field of leak protection gas device, more specifically says, relates to a take off a tub leak protection valve.

Background

Liquefied gas is a common fuel and is widely used in thousands of households, so that the safety of use of the liquefied gas directly affects the life and property safety of people.

In people's daily life, because the rubber tube of connecting with gas device drops, lead to liquefied gas to leak, and then the condition that causes accidents such as explosion, conflagration, burn takes place occasionally, how to prevent liquefied gas leakage when the rubber tube drops is the problem that present liquefied gas trade is waited to solve urgently.

SUMMERY OF THE UTILITY MODEL

The application aims to provide a pipe-off leakage-proof valve, which comprises but is not limited to solve the technical problem that liquefied gas leakage is caused by the falling off of a rubber pipe of a connecting gas device.

In order to achieve the above object, the present application provides a pipe-removal leakage-proof valve for use in a gas system for fuel gas, the pipe-dropping leakage-proof valve comprises a valve body, a sealing plug, an opening piece and a driving piece, wherein the valve body is provided with a vent groove and a vent channel and is fixedly arranged in a pipe cavity of the gas pipe, and the gas passing through the tube cavity is output after passing through the vent groove and the vent channel in sequence, the sealing plug is accommodated in the vent groove, the first end of the opening piece is exposed out of the valve body, the second end of the opening piece is arranged in the vent channel in a penetrating way, the sealing plug can penetrate through the ventilation channel and then extend into the ventilation groove, two ends of the driving piece are respectively abutted against the groove wall of the ventilation groove and one end of the sealing plug far away from the opening piece, to drive the sealing plug to move along the length direction of the vent groove until the vent channel is closed.

The application provides a take off tub leak protection valve's beneficial effect: the utility model discloses a valve body, including the valve body, the gas supply pipe is equipped with the sealing plug, the valve body is equipped with the opening, the sealing plug is equipped with the opening, the opening is equipped with the sealing plug, the sealing plug is equipped with the opening, the sealing plug is equipped with the sealing plug, the sealing plug is equipped with the sealing plug.

In some embodiments, a transition cavity is arranged between the vent groove and the vent channel, the cross-sectional area of the transition cavity is gradually reduced from one side of the vent groove to one side of the vent channel, and one end, away from the driving piece, of the sealing plug can extend into the transition cavity and block the transition cavity.

The difficulty of the sealing plug for sealing the vent passage is reduced, and the air tightness of the sealing plug for sealing the vent passage is improved.

In some embodiments, the sealing plug comprises a plug body and a sealing ring, the sealing ring is sleeved on the periphery of the plug body, and the outer diameter of the sealing ring is larger than the inner diameter of the vent channel.

Therefore, the plug body can be connected with the driving piece and abutted against the opening piece, and the air tightness of the sealing plug when the vent channel is closed can be ensured through the sealing ring.

In some embodiments, the plug body is provided with an annular groove and a first positioning protrusion, the annular groove extends along the circumferential direction of the plug body and is used for accommodating the sealing ring, and the first positioning protrusion is located on the end face, away from the opening piece, of the plug body and is fixedly connected with one end of the driving piece.

Thereby can realize the fixed connection of sealing washer and cock body through the ring channel, the one end of driving piece cup joints on first location is protruding for sealing plug and driving piece fixed connection, and can follow the flexible length direction removal along the air channel of driving piece.

In some embodiments, the plug body is welded, bonded, threaded or integrally formed with the second end of the opener.

That is, the plug body can be fixedly connected with the second end of the opening member by welding, bonding, screwing or integral molding.

In some embodiments, a wall of the vent groove away from the vent channel is provided with a second positioning protrusion, and the second positioning protrusion is fixedly connected with one end of the driving member.

One end of the driving piece is sleeved on the second positioning protrusion, so that the driving piece is fixedly connected in the vent groove, and the driving piece can be prevented from being separated from the vent groove in the stretching process.

In some embodiments, the opening member is provided with a through groove extending along the length direction of the opening member.

Thereby can communicate air channel and external environment through logical groove, be favorable to reducing the hindrance to the circulation of gas when opening the piece and wear to establish in the air channel, increase the flow of the gas process of taking off a tub leak protection valve in the trachea effectively.

In some embodiments, the first end of the opener is provided with a contact for contacting the air tap, and the widest part of the contact has a width greater than the inner diameter of the vent channel.

Can ensure that the contact can't stretch into in the ventilation channel to by spacing in the outside of valve body, can ensure simultaneously that the terminal surface butt of contact and air cock, and drive about the opening piece and remove along length direction under the ejection of air cock.

In some embodiments, the outer wall of the valve body is provided with a tower-shaped anti-slip structure.

The pipeline anti-leakage valve is convenient for the valve body to be installed in the pipeline cavity of the air inlet pipe through the tower-shaped anti-sliding structure, and is beneficial to increasing the resistance of the valve body to slide out of the pipeline cavity of the air inlet pipe, so that the pipeline anti-leakage valve is more firmly installed in the pipeline cavity of the air inlet pipe.

In some embodiments, the driver is a compression spring.

So that the sealing plug can be driven to move along the vent groove towards the vent channel by the elastic force of the driving piece.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

FIG. 1 is a perspective view of a pipe-release leak-proof valve provided in an embodiment of the present application;

FIG. 2 is a schematic longitudinal section of a pipe-disconnecting leakage-proof valve provided by the embodiment of the application;

FIG. 3 is a schematic view of a use state of the pipe-removal leakage-prevention valve provided by the embodiment of the application.

Wherein, in the figures, the various reference numbers:

1-pipe-removal leakage-proof valve, 11-valve body, 12-sealing plug, 13-opening piece, 14-driving piece, 111-vent groove, 112-vent channel, 113-transition cavity, 114-second positioning projection, 115-tower-shaped anti-skid structure, 121-plug body, 122-sealing ring, 131-through groove, 132-contact, 1211-annular groove, 1212-first positioning projection and X-length direction;

2, a gas conveying pipe;

3-air using device, 30-air nozzle.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.

It should be noted that: when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected" to another element, it can be directly or indirectly connected to the other element. The terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience of description only and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular orientation, and therefore are not to be construed as limiting the patent, the particular meaning of which terms will be understood by those skilled in the art as appropriate. Furthermore, the terms "first", "second" and "first" 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" or "second" may explicitly or implicitly include one or more of that feature. The term "plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 and 2 together, the present application provides a pipe-release leakage-proof valve 1, which is used in a gas system for fuel gas, the pipe-release leakage-proof valve 1 includes a valve body 11, a sealing plug 12, an opening member 13 and a driving member 14, wherein the valve body 11 is provided with a vent groove 111 and a vent channel 112, the valve body 11 is used for being fixedly installed in a pipe cavity of a gas pipe 2 (see fig. 3), and gas passing through the pipe cavity passes through the vent groove 111 and the vent channel 112 in sequence and is then output; the sealing plug 12 is accommodated in the vent groove 111; a first end of the opener 13 is exposed out of the valve body 11, a second end of the opener 13 is arranged in the ventilation channel 112 in a penetrating way, and can penetrate through the ventilation channel 112 and extend into the ventilation groove 111 to push the sealing plug 12 to the side of the driving piece 14; both ends of the driving member 14 abut against the wall of the vent groove 111 and the end of the sealing plug 12 away from the opener 13, respectively, to drive the sealing plug 12 to move along the length direction X of the vent groove 111 until the vent passage 112 is closed. It is to be understood that "fuel gas" refers to liquefied petroleum gas, natural gas, or the like, and "gas system for fuel gas" refers to a system using fuel gas as fuel, such as: a gas stove and a liquefied gas cylinder, or a water heater and a natural gas pipeline.

Specifically, the vent groove 111 is preferably a through groove penetrating through two side walls of the valve body 11 arranged oppositely, which is beneficial to reducing obstruction of gas through the valve body 11, and the vent channel 112 penetrates through one end wall of the valve body 11 and is communicated with the vent groove 111; the sealing plug 12 is connected in the vent groove 111 in a sliding way; the opening piece 13 is arranged in the vent passage 112 in a penetrating way, the first end of the opening piece extends out of one side of the vent passage 112 and is exposed outside the valve body 11, and the second end of the opening piece is connected in the vent passage 112 in a sliding way and can slide into the vent groove 111 along the vent passage 112; the driving member 14 is preferably a compression spring, however, the driving member 14 and the sealing plug 12 may be magnetic members according to specific situations and needs, and two magnetic poles of the same magnetism of the driving member 14 and the sealing plug 12 are oppositely arranged, so that the driving member 14 can drive the sealing plug 12 to move along the vent groove 111 towards the vent passage 112 by a repulsive force between the two magnetic poles of the same magnetism.

Referring to fig. 3, in practical application, the pipe-off leakage-proof valve 1 is integrally installed in the cavity of the air outlet end of the air pipe 2. When the pipe-off leakage-proof valve 1 is installed, one end of the valve body 11 far away from the opening piece 13 is pushed into the pipe cavity of the gas pipe 2, then the whole valve body 11 is pushed into the pipe cavity of the gas pipe 2 until the opening piece 13 is also pushed into the pipe cavity of the gas pipe 2, then the gas outlet end of the gas pipe 2 is sleeved on the gas nozzle 30 of the gas device 3, in the sleeving process, the gas nozzle 30 can be abutted against the first end of the opening piece 13, and the pushing opening piece 13 moves towards one side close to the valve body 11, at the moment, the second end of the opening piece 13 can push the sealing plug 12 to be far away from the ventilation channel 112, so that the ventilation channel 112 is communicated with the ventilation groove 111, gas circulation is realized, then when the first end of the opening piece 13 is abutted against the end surface of the valve body 11 or the sealing plug of the ventilation channel 111 is abutted against the groove wall of the ventilation channel 112, the opening piece 13 can drive the valve body 11 to continue to move towards the pipe cavity of the gas pipe 2 under the pushing of the gas nozzle 30, until the air outlet end of the air pipe 2 is sleeved with the air nozzle 30. Once gas pipe 2 and air cock 30 break away from taking place, the first end of opening 13 can break away from with air cock 30, and the external force that acts on opening 13 at this moment is removed, and driving piece 14 can drive sealing plug 12 and remove towards the one side that is close to ventilation channel 112, and the opening that ventilation channel 112 and air channel 111 are connected is sealed up to sealing plug 12, realizes cutting off the passageway of gas circulation, prevents that gas from the output of the end of giving vent to anger of gas pipe 2.

The utility model provides an anticreep valve 1 of takeing off pipe, an opening 13 has been adopted, driving piece 14 and sealing plug 12 cooperation, under normal gas state, opening 13 can push down the ventilation channel 112 that sealing plug 12 kept away from valve body 11 under ordering about of air cock 30, realize the gas circulation, and under the condition that gas pipe 2 accident drops, driving piece 14 can order about the opening that sealing plug 12 will ventilate channel 112 and air channel 111 and be connected and seal, the realization cuts off the passageway of gas circulation, gas is prevented from the output of the end of giving vent to anger of gas pipe 2, thereby solved effectively that the rubber tube of connecting gas appliances drops and can arouse the technical problem that the liquefied gas leaked, be favorable to promoting the safety in utilization of liquefied gas.

Alternatively, referring to fig. 2, as an embodiment of the pipe-disconnecting leakage-preventing valve provided by the present application, a transition cavity 113 is provided between the vent groove 111 and the vent channel 112, a cross-sectional area of the transition cavity 113 gradually decreases from one side of the vent groove 111 to one side of the vent channel 112, and an end of the sealing plug 12 away from the driver 14 can extend into the transition cavity 113 and block the transition cavity 113. That is, the valve body 11 is further provided with a transition cavity 113, the transition cavity 113 is a cavity body communicating the vent groove 111 and the vent channel 112, specifically, the transition cavity 113 is in a circular truncated cone shape as a whole, an opening with a larger cross-sectional area of the transition cavity 113 is communicated with the vent groove 111, and an opening with a smaller cross-sectional area of the transition cavity 113 is communicated with the vent channel 112. When the vent passage 112 needs to be closed, only the outer wall of the sealing plug 12 needs to be abutted against the wall of the transition cavity 113, and the end face of the sealing plug 12 is not required to be abutted against the end face of the vent passage 112, so that the difficulty of closing the vent passage 112 by the sealing plug 12 is favorably reduced, and the abutting area of the outer wall of the sealing plug 12 and the wall of the transition cavity 113 is larger than that of the end face of the sealing plug 12 and the end face of the vent passage 112, so that the air tightness of the sealing plug 12 when the vent passage 112 is closed is favorably improved.

Optionally, referring to fig. 2, as an embodiment of the present disclosure, the sealing plug 12 includes a plug body 121 and a sealing ring 122, wherein the sealing ring 122 is sleeved on an outer circumference of the plug body 121, and an outer diameter of the sealing ring 122 is larger than an inner diameter of the vent passage 112. So that the plug body 121 can be connected to the driver 14 and abut against the opener 13, and the sealing ring 122 can ensure the airtightness when the vent passage 112 is closed by the sealing plug 12.

Optionally, referring to fig. 2, as an embodiment of the present application, the plug body 121 is provided with an annular groove 1211 and a first positioning protrusion 1212, wherein the annular groove 1211 extends along a circumferential direction of the plug body 121 for accommodating the sealing ring 122, and the first positioning protrusion 1212 is located on an end surface of the plug body 121 away from the opener 13 and is fixedly connected to an end of the driving member 14. Specifically, the inner ring portion of the sealing ring 122 is accommodated in the annular groove 1211 and is fixedly connected with the plug body 121; first location arch 1212 is from the terminal surface that the cock body 121 kept away from opening 13 to keeping away from one side protrusion of opening 13, and driving piece 14 is compression spring, and compression spring's one end cup joints on first location arch 1212 for sealing plug 12 and compression spring fixed connection, and can follow compression spring's flexible and move along the length direction of air channel 111.

Alternatively, referring to fig. 2, as an embodiment of the present disclosure, the plug body 121 is welded, bonded, screwed or integrally formed with the second end of the opener 13. That is, in this embodiment, the plug body 121 may be fixedly connected to the second end of the opener 13 by welding, bonding, screwing or integrally forming.

Optionally, referring to fig. 2, as an embodiment of the pipe-dropping leakage-preventing valve provided by the present application, a groove wall of the vent groove 111 away from the vent channel 112 is provided with a second positioning protrusion 114, and the second positioning protrusion 114 is fixedly connected to an end of the driving member 14. Specifically, the second positioning protrusion 114 protrudes from a wall of the vent groove 111 far from the vent channel 112 to a side close to the through cavity channel 112, the driving member 14 is a compression spring, and one end of the compression spring far from the sealing plug 12 is sleeved on the second positioning protrusion 114, so that the compression spring is fixedly connected in the vent groove 111, and the compression spring can be prevented from being separated from the vent groove 111 in the telescoping process.

Optionally, referring to fig. 1 and 2, as an embodiment of the pipe-releasing leakage-preventing valve provided by the present application, the opening member 13 is provided with a through groove 131 extending along a length direction thereof. A plurality of through groove 131 has been seted up promptly on the outer wall of opening 13, every through groove 131 runs through opening 13 along the length direction X of opening 13, every through groove 131 extends to the second end of opening 13 from the first end of opening 13 promptly, thereby can communicate air channel 111 and external environment through groove 131, be favorable to reducing the hindrance to gas flow when opening 13 wears to establish in ventilation channel 112, increase the flow of the gas process in the gas-supply pipe 2 through taking off tub leak protection valve 1 effectively.

Alternatively, referring to fig. 1 and 2, as an embodiment of the pipe disconnection leakage prevention valve provided in the present application, the first end of the opener 13 is provided with a contact 132 for contacting the air tap 30, and the widest part of the contact 132 has a width larger than the inner diameter of the vent passage 112. Specifically, the contact 132 is integrally formed with the body of the opener 13, the cross-sectional area of the body of the opener 13 is smaller than the cross-sectional area of the vent channel 112, the cross-sectional area of the contact 132 is larger than the cross-sectional area of the body of the opener 13, the contact 132 may be in a regular geometric shape or an irregular geometric shape, the width of the widest part of the contact 132 is larger than both the inner diameter of the vent channel 112 and the inner diameter of the air passage of the air faucet 30, it is ensured that the contact 132 cannot extend into the vent channel 112 and is limited outside the valve body 11, at the same time, the contact 132 is ensured to abut against the end face of the air faucet 30, and the opener 13 is driven to move along the length direction X under the pushing of the air faucet 30. It will be appreciated that the through slots 131 extend through the contacts 132, effectively preventing the contacts 132 from obstructing the flow of gas in the gas delivery conduit 2.

Optionally, referring to fig. 1 and 2, as an embodiment of the pipe-dropping leakage-proof valve provided by the present application, the outer wall of the valve body 11 is provided with a tower-shaped anti-slip structure 115. That is, the outer wall of the valve body 11 is provided with a plurality of pagoda-shaped steps, the cross-sectional area of the steps is gradually reduced from one side of the opening piece 13 to one side of the driving piece 14, so that the valve body 11 is conveniently installed in the pipe cavity of the air conveying pipe 2, and the resistance of the valve body 11 to slide out of the pipe cavity of the air conveying pipe 2 is increased, and the pipe-off leakage-proof valve 1 is more firmly installed in the pipe cavity of the air conveying pipe 2.

Optionally, in this application, valve body 11, cock body 121 and opening 13 are the plastic part, low in production cost, and the processing of being convenient for, corrosion resisting property is good, is favorable to using in the lumen of gas-supply pipe 2 for a long time.

The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. A pipe-removal leakage-proof valve used in a gas system for fuel gas is characterized in that: the pipe-dropping leakage-proof valve comprises a valve body, a sealing plug, an opening piece and a driving piece, wherein the valve body is provided with a vent groove and a vent channel, the valve body is fixedly installed in a pipe cavity of a gas conveying pipe and enables gas passing through the pipe cavity to sequentially pass through the vent groove and the vent channel and then be output, the sealing plug is accommodated in the vent groove, the first end of the opening piece is exposed out of the valve body, the second end of the opening piece penetrates through the vent channel and can penetrate through the vent channel and then extend into the vent groove, and two ends of the driving piece are respectively abutted against the wall of the vent groove and one end, far away from the opening piece, of the sealing plug so as to drive the sealing plug to move along the length direction of the vent groove until the vent channel is closed.

2. The pipe-release leak-proof valve of claim 1, wherein: a transition cavity is arranged between the vent groove and the vent channel, the cross-sectional area of the transition cavity is gradually reduced from one side of the vent groove to one side of the vent channel, and one end, far away from the driving piece, of the sealing plug can extend into the transition cavity and block the transition cavity.

3. The tube-removal leakage-proof valve as recited in claim 1, wherein: the sealing plug comprises a plug body and a sealing ring, the sealing ring is sleeved on the periphery of the plug body, and the outer diameter of the sealing ring is larger than the inner diameter of the ventilation channel.

4. The tube-removal leakage-prevention valve as claimed in claim 3, wherein: the cock body is equipped with ring channel and first location arch, the ring channel is followed the circumference of cock body extends, is used for supplying the sealing washer holding, first location arch is located the cock body is kept away from on the terminal surface of opening, and with the one end fixed connection of driving piece.

5. The tube-removal leakage-prevention valve as claimed in claim 3, wherein: the plug body and the second end of the opening piece are welded, bonded, in threaded connection or integrally formed.

6. The pipe-release leak-proof valve of claim 1, wherein: and a second positioning bulge is arranged on the wall of the ventilation groove far away from the ventilation channel, and the second positioning bulge is fixedly connected with one end of the driving piece.

7. The tube-removal leakage-proof valve as recited in claim 1, wherein: the opening piece is provided with a through groove extending along the length direction of the opening piece.

8. The tube-removal leakage-prevention valve as claimed in claim 7, wherein: the first end of the opening piece is provided with a contact for contacting with the air faucet, and the width of the widest part of the contact is larger than the inner diameter of the ventilation channel.

9. The tube-removal leakage-proof valve as recited in claim 1, wherein: the outer wall of the valve body is provided with a tower-shaped anti-skidding structure.

10. The pipe-release leakage prevention valve of any one of claims 1 to 9, wherein: the driving piece is a compression spring.

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