Gas safety self-closing valve with filtering function

Abstract

The utility model discloses a gas safety self-closing valve with a filtering function, which comprises a self-closing valve, the top end of the self-closing valve is provided with a lifting button, one side of the self-closing valve is provided with a gas inlet pipe, the other side of the self-closing valve is provided with an external thread joint, the bottom end of the gas inlet pipe is provided with a ball core valve, and the bottom end of the ball core valve is provided with an external thread joint. And an internal thread connector is arranged at the bottom end of the ball center valve, and a butt joint is installed on one side of the air inlet pipe. According to the safety valve, the sealing plug, the butt joint, the filter screen, the connecting column, the circular ring and the first sealing ring are arranged, the gas filtering function is achieved, the first sealing ring is filled between the gas inlet pipe and the circular ring, gas is prevented from entering the safety valve from an edge gap, the filter screen can filter impurities in the gas, and the safety valve is convenient to use. Impurities in fuel gas are prevented from entering the self-closing valve and the gas stove, the blocking phenomenon is avoided, and meanwhile the sealing plug is in threaded connection with the butt joint, so that the circular ring and the filter screen are conveniently taken out and installed.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas safety self -closing valve technical field, concretely is a kind of gas safety self -closing valve with filtering function. BACKGROUND

[0002] Gas safety self -closing valve is an important device to guarantee the safety of gas use, and gas safety self -closing valve mainly relies on mechanical principle to work.When gas is normally circulated, valve is in open state, and gas can pass smoothly, and once abnormal situation of underpressure, overpressure or overcurrent occurs, valve will be automatically closed, in actual use, gas is affected by external factors in transportation, and a small amount of impurities can be mixed, and the impurities can be attached in the valve body or the gas passage of combustion equipment, and serious can cause the phenomenon of combustion equipment gas passage blockage, affect the use of combustion equipment, therefore, the present application provides a kind of gas safety self -closing valve with filtering function. SUMMARY

[0003] The utility model discloses a kind of gas safety self -closing valve with filtering function, to solve the problem raised in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of gas safety self -closing valve with filtering function, including self -closing valve, the top of the self -closing valve is provided with pull button, one side of the self -closing valve is provided with inlet pipe, the other side of the self -closing valve is provided with external thread joint, the bottom of the inlet pipe is installed with ball core valve, and the bottom of ball core valve is provided with internal thread joint, one side of the inlet pipe is installed with butt joint, and the inside of butt joint is installed with sealing plug, one side of the sealing plug is installed with connecting column, and one side of connecting column is installed with circular ring, one side of the circular ring is installed with filter screen.

[0005] Preferably, the inside of the butt joint is provided with internal thread, the outside of the sealing plug is provided with external thread, and the sealing plug and the butt joint are threadedly connected.

[0006] Preferably, the connecting column is provided with three groups, and the connecting column is annularly distributed on the side of the sealing plug.

[0007] Preferably, the outside wall of the circular ring is provided with groove, and the inside of the groove is installed with first sealing ring.

[0008] Preferably, the outside of the butt joint is installed with sealing cover, and one side of the sealing cover is installed with second sealing ring.

[0009] Preferably, the inside wall of the sealing cover is provided with internal thread, the outside of the butt joint is provided with external thread, and the butt joint and the sealing cover are threadedly connected.

[0010] Compared with the prior art, the utility model has the advantages of

[0011] (1) through being provided with sealing plug, butt joint, filter screen, connecting column, circular ring and first sealing ring, realize to the gas filter function, first sealing ring fills in the air inlet pipe and circular ring between, avoid the gas from the edge gap into the safety valve inside, and filter screen can filter the impurity in the gas, block the impurity in the gas into the self-closing valve and gas stove, avoid causing the phenomenon of blockage, simultaneously sealing plug and butt joint's thread connection, convenient for circular ring and filter screen are taken out and installation;

[0012] (2) through being provided with sealing cover, butt joint and second sealing ring, realized the sealing function of butt joint, butt joint and sealing cover between form the thread connection, sealing cover can be installed in sealing plug and butt joint's outside, cover the gap between sealing plug and butt joint, cooperate the setting of second sealing ring, seal the gap, avoid the gas from the inside of butt joint to leak outward, thereby improved the security of use. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description is some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0014] Figure 1 It is the front view structural schematic diagram of the utility model;

[0015] Figure 2 It is the side view structural schematic diagram of the utility model;

[0016] Figure 3 It is the air inlet pipe front view partial section structural schematic diagram of the utility model;

[0017] Figure 4 It is the butt joint front view partial section structural schematic diagram of the utility model;

[0018] Figure 5 It is the sealing plug front view partial section structural schematic diagram of the utility model.

[0019] Explanation of reference numerals in the drawing:

[0020] 1, self-closing valve;2, air inlet pipe;3, inner thread joint;4, ball center valve;5, sealing cover;6, knob;7, outer thread joint;8, sealing plug;9, butt joint;10, filter screen;11, connecting column;12, circular ring;13, first sealing ring;14, second sealing ring. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] In the description of the utility model, it should be noted that unless explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0023] Please refer to Figures 1-5 The utility model provides an embodiment: a gas safety self -closing valve with filter function, including self -closing valve 1, the top of self -closing valve 1 is provided with knob 6, one side of self -closing valve 1 is provided with inlet pipe 2, the other side of self -closing valve 1 is provided with external thread joint 7, the bottom of inlet pipe 2 is installed with ball core valve 4, and the bottom of ball core valve 4 is provided with internal thread joint 3, one side of inlet pipe 2 is installed with butt joint 9, and butt joint 9 is installed with sealing plug 8 in the inside, one side of sealing plug 8 is installed with connecting column 11, and one side of connecting column 11 is installed with circular ring 12, one side of circular ring 12 is installed with filter screen 10;

[0024] The inside of butt joint 9 is provided with internal thread, the outside of sealing plug 8 is provided with external thread, and the thread connection is formed between sealing plug 8 and butt joint 9, connecting column 11 is provided with three groups, and connecting column 11 is annularly distributed on one side of sealing plug 8, recess is provided on the outside wall of circular ring 12, and first sealing ring 13 is installed in the inside of recess, first sealing ring 13 is filled between inlet pipe 2 and circular ring 12, to avoid the gas from the edge gap into the safety valve inside;

[0025] Specifically, as shown in the figure, in use, through the installation of filter screen 10, the impurities in the gas can be filtered, the impurities in the gas are blocked from entering self -closing valve 1 and gas stove, to avoid the phenomenon of blockage, at the same time, the thread connection of sealing plug 8 and butt joint 9 is convenient for taking out and installing circular ring 12 and filter screen 10, which is convenient for cleaning later;

[0026] The sealing cover 5 is installed on the outer side of the joint 9, one side of the sealing cover 5 is provided with a second sealing ring 14, the inner side wall of the sealing cover 5 is provided with an internal thread, the outer side of the joint 9 is provided with an external thread, and the joint 9 and the sealing cover 5 are threadedly connected, and the sealing cover 5 can be installed on the outer side of the sealing plug 8 and the joint 9;

[0027] Specifically, as shown in the figure, in use, the gap between the sealing plug 8 and the joint 9 can be covered by the installation of the sealing cover 5, and the gap is sealed by the second sealing ring 14, so as to prevent gas from leaking out of the inside of the joint 9.

[0028] Working principle: in use, first, the gas safety self-closing valve is taken out, carried to the target area, and the inner thread joint 3 and the outer thread joint 7 are connected with the corresponding gas pipeline, in the process of use, the gas is transported from the inlet pipe 2 to the inside of the self-closing valve 1, and then to the combustion equipment, the filter screen 10 in the inlet pipe 2 can filter the impurities in the gas, block the impurities in the gas from entering the self-closing valve 1 and the gas stove, and avoid the phenomenon of blockage, when it is necessary to clean and maintain the filter screen 10, rotate and take off the sealing cover 5, and rotate the sealing plug 8, take out the sealing plug 8 from the inside of the joint 9, control the filter screen 10 to be taken out from the inside of the inlet pipe 2, and then clean the impurities on the filter screen 10, after cleaning, the filter screen 10 is installed back into the inside of the inlet pipe 2, at the same time, the joint 9 and the sealing cover 5 are threadedly connected, the sealing cover 5 can be installed on the outer side of the sealing plug 8 and the joint 9, the gap between the sealing plug 8 and the joint 9 is covered, and the gap is sealed by the second sealing ring 14, so as to prevent gas from leaking out of the inside of the joint 9, and finally complete the use of the gas safety self-closing valve.

[0029] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A gas safety self-closing valve provided with a filtering function, comprising a self-closing valve (1), characterized in that: The top end of the self-closing valve (1) is provided with a knob (6), one side of the self-closing valve (1) is provided with an air inlet pipe (2), the other side of the self-closing valve (1) is provided with a male joint (7), the bottom end of the air inlet pipe (2) is installed with a ball valve (4), the bottom end of the ball valve (4) is provided with a female joint (3), one side of the air inlet pipe (2) is installed with a butt joint (9), the inside of the butt joint (9) is installed with a sealing plug (8), one side of the sealing plug (8) is installed with a connecting column (11), one side of the connecting column (11) is installed with a circular ring (12), one side of the circular ring (12) is installed with a filter screen (10).

2. A gas safety self-closing valve with filtering function according to claim 1, characterized in that: The inside of the butt joint (9) is provided with internal threads, the outside of the sealing plug (8) is provided with external threads, and the sealing plug (8) and the butt joint (9) are threadedly connected.

3. A gas safety self-closing valve with filtering function according to claim 1, characterized in that: The connecting column (11) is provided with three groups, and the connecting column (11) is annularly distributed on one side of the sealing plug (8).

4. A gas safety self-closing valve with filtering function according to claim 1, characterized in that: The outside wall of the circular ring (12) is provided with a groove, and the inside of the groove is installed with a first sealing ring (13).

5. A gas safety self-closing valve with filtering function according to claim 1, characterized in that: The outside of the butt joint (9) is installed with a sealing cover (5), and one side of the sealing cover (5) is installed with a second sealing ring (14).

6. A gas safety self-closing valve with filtering function according to claim 5, characterized in that: The inside wall of the sealing cover (5) is provided with internal threads, the outside of the butt joint (9) is provided with external threads, and the butt joint (9) and the sealing cover (5) are threadedly connected.

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