Novel gas self-closing valve

Abstract

The utility model discloses a novel gas self-closing valve which comprises a valve body, a first pipe body, a first shell and a second pipe body, wherein one end of the first pipe body is connected with a gas outlet of the valve body; one side of the first shell is connected with the other end of the first pipe body; one end of the second pipe body is connected with the other side of the first shell; the first shell is provided with an inner cavity, and the inner cavity communicates with the first pipe body and the second pipe body. A first opening communicated with the inner cavity is formed in the first shell; a first valve is arranged at the first opening; the first valve is attached to the inner wall of the first shell and can enter or be away from the inner cavity through the first opening. When the first valve enters the inner cavity, the first valve cuts off communication between the first pipe body and the second pipe body; and when the first valve is far away from the inner cavity, the first pipe body is communicated with the second pipe body. According to the gas self-closing valve, the technical problem that gas resources are wasted when the gas self-closing valve is replaced is solved, and the technical effect of reducing waste of the gas resources is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas valves, and particularly to a new type of gas self-closing valve. Background Technique

[0002] With the acceleration of the urbanization process, as an important energy source, gas plays a crucial role in residents' lives and industrial production. However, the safety issues of gas use also follow. Among them, gas leakage is one of the most common safety hazards. In order to prevent safety accidents caused by gas leakage, the gas self-closing valve, as an important safety device, has been widely used.

[0003] The gas self-closing valve is a safety device installed on the gas pipeline. When the gas pressure or flow in the pipeline is abnormal, it can automatically close the gas supply, thus preventing gas leakage and fire accidents. The gas self-closing valve has the characteristics of simple structure, convenient operation, safety and reliability, and is an important device to ensure the safety of gas use.

[0004] During daily use, usually the inlet of the gas self-closing valve is connected to the liquefied gas tank, and the outlet of the gas self-closing valve is connected to the gas stove. When the gas self-closing valve needs to be replaced, it is necessary to first close the switch of the liquefied gas tank, and then consume the gas in the pipeline by igniting and burning the gas stove before the gas self-closing valve can be removed for maintenance and replacement. This method causes a certain degree of waste of gas resources. Content of the Utility Model

[0005] This application provides a new type of gas self-closing valve to solve the technical problem of gas resource waste when replacing the gas self-closing valve.

[0006] A new type of gas self-closing valve provided by this application includes: a valve body, a first pipe body with one end connected to the outlet of the valve body, a first housing with one side connected to the other end of the first pipe body, and a second pipe body with one end connected to the other side of the first housing; the first housing is provided with an inner cavity, and the inner cavity communicates the first pipe body and the second pipe body; the first housing is provided with a first opening communicating with the inner cavity; a first valve is provided at the first opening; the first valve is arranged to fit the inner wall of the first housing, and the first valve can enter or move away from the inner cavity through the first opening; when the first valve enters the inner cavity, the first valve cuts off the communication between the first pipe body and the second pipe body; when the first valve moves away from the inner cavity, the first pipe body and the second pipe body are communicated.

[0007] Preferably, one end of the first valve entering the inner cavity is provided with a first sealing ring, and the first sealing ring surrounds the first valve and fits the inner wall of the first housing.

[0008] By adopting the above technical solution, a switchable first housing and a first valve are provided between the gas outlet of the gas self-closing valve body and the gas inlet pipe of the gas stove. By sliding the first valve to cut off the connection between the first pipe and the second pipe, the connection between the valve body and the gas stove is realized, so that when the gas self-closing valve is disassembled, the gas in the gas inlet pipe of the gas stove is retained, reducing the waste of gas resources.

[0009] Preferably, a plurality of first elastic members are provided on the first valve, and a plurality of first grooves adapted for the first elastic members to be embedded are provided on the inner wall of the first housing. When the first valve is far from the inner cavity to connect the first pipe and the second pipe, the first elastic members are embedded in the first grooves.

[0010] By adopting the above technical solution, a first elastic member is provided on the first valve, and a first groove is provided on the inner cavity at the first opening. When the first pipe and the second pipe are connected, the first sealing ring is fixed at the first opening, improving the use stability of the product.

[0011] Preferably, a second sealing ring is provided at one end of the first pipe connected to the gas outlet of the valve body. The second sealing ring surrounds the first pipe and fits the inner wall of the gas outlet of the valve body.

[0012] Preferably, a detachable third sealing ring is provided at one end of the second pipe far from the first housing. The third sealing ring surrounds the second pipe.

[0013] By adopting the above technical solution, a second sealing ring and a third sealing ring are respectively provided on the first pipe and the second pipe, improving the airtightness of the product during use, reducing the risk of gas leakage, and improving the use safety of the product.

[0014] Preferably, a plurality of second elastic members are provided at one end of the first pipe connected to the gas outlet of the valve body, and a plurality of second grooves adapted for the second elastic members to be embedded are provided on the inner wall of the gas outlet of the valve body. When the first pipe is connected to the gas outlet of the valve body, the second elastic members are embedded in the second grooves.

[0015] Preferably, a plurality of third elastic members are provided at one end of the second pipe far from the first housing.

[0016] By adopting the above technical solution, second elastic members and third elastic members are respectively provided on the first pipe and the second pipe, strengthening the connection between the first pipe and the valve body, strengthening the connection between the second pipe and the intake pipe, and improving the use stability of the product.

[0017] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0018] 1. A switchable first housing and a first valve are provided between the gas outlet of the gas self - closing valve body and the gas inlet pipe of the gas stove. By sliding the first valve to cut off the connection between the first pipe and the second pipe, the isolation between the valve body and the gas stove is achieved, so that when the gas self - closing valve is disassembled, the gas in the gas inlet pipe of the gas stove is retained, reducing the waste of gas resources;

[0019] 2. A first elastic member is provided on the first valve, and a first groove is provided on the inner cavity at the first opening. When the first pipe and the second pipe are connected, the first sealing ring is fixed at the first opening, improving the use stability of the product;

[0020] 3. A second sealing ring and a third sealing ring are respectively provided on the first pipe and the second pipe, improving the airtightness of the product during use, reducing the risk of gas leakage, and enhancing the use safety of the product;

[0021] 4. A second elastic member and a third elastic member are respectively provided on the first pipe and the second pipe, strengthening the connection between the first pipe and the valve body, and strengthening the connection between the second pipe and the inlet pipe, improving the use stability of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following - described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 Isometric view of a new type of gas self - closing valve provided by the present application;

[0024] Figure 2 Cross - sectional view of a new type of gas self - closing valve provided by the present application;

[0025] Figure 3 Cross - sectional view of the first housing and the first valve body of a new type of gas self - closing valve provided by the present application;

[0026] Figure 4 Isometric view of the connection state of the first housing, the first valve body, the first pipe and the second pipe of a new type of gas self - closing valve provided by the present application.

[0027] Description of the reference numerals: 1. Valve body; 11. Air outlet; 111. Second groove; 12. Air inlet; 2. First pipe body; 21. Second sealing ring; 22. Second elastic member; 3. First housing; 31. Inner cavity; 32. First opening; 33. First groove; 4. First valve; 41. First sealing ring; 42. First elastic member; 5. Second pipe body; 51. Third sealing ring; 52. Third elastic member. Detailed implementation manners

[0028] The present application provides a new type of gas self-closing valve, which is used to solve the technical problem of waste of gas resources when replacing the gas self-closing valve in the prior art.

[0029] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or server including a series of steps or units does not necessarily have to be limited to those clearly listed steps or units, but may include other steps or modules not clearly listed or inherent to these processes, methods, products or devices.

[0031] Embodiment 1

[0032] As Figures 1 to 4 shown, the embodiment of the present application provides a new type of gas self-closing valve, including: a valve body 1, a first pipe body 2 with one end connected to the air outlet 11 of the valve body 1, a first housing 3 with one side connected to the other end of the first pipe body 2, and a second pipe body 5 with one end connected to the other side of the first housing 3; the first housing 3 is provided with an inner cavity 31, and the inner cavity 31 communicates with the first pipe body 2 and the second pipe body 5; the first housing 3 is provided with a first opening 32 communicating with the inner cavity 31; a first valve 4 is provided at the first opening 32; the first valve 4 is arranged in contact with the inner wall of the first housing 3, and the first valve 4 can enter or move away from the inner cavity 31 through the first opening 32; when the first valve 4 enters the inner cavity 31, the first valve 4 cuts off the communication between the first pipe body 2 and the second pipe body 5; when the first valve 4 moves away from the inner cavity 31, the first pipe body 2 is communicated with the second pipe body 5.

[0033] More preferably, in the embodiments provided in the present application, the gas inlet 12 of the gas self-closing valve body 1 is connected to the liquefied gas tank. A first pipe body 2 is connected to the gas outlet 11 of the gas self-closing valve body 1. The first pipe body 2 is communicated with the inside of the valve body 1. The other end of the first pipe body 2 is connected to a first housing 3. The inner cavity 31 of the first housing 3 is communicated with the inside of the valve body 1 through the first pipe body 2. A second pipe body 5 communicated with the inner cavity 31 is provided on the other side of the first housing 3. The other end of the second pipe body 5 is communicated with the gas inlet pipe of the gas stove. A first opening 32 communicated with the inner cavity 31 is provided at the upper end of the first housing 3. A first valve 4 is inserted into the inner cavity 31 through the first opening 32. A first sealing ring 41 is provided at one end of the first valve 4 close to the bottom of the inner cavity 31. The first sealing ring 41 is sleeved on the first valve 4. The first sealing ring 41 fits against the inner wall of the inner cavity 31. The first sealing ring 41 is in interference fit with the inner cavity 31. The first valve 4 and the first sealing ring 41 cooperate to isolate the inner cavity 31 from the space outside the first opening 32. A handle is further provided at the end of the first valve 4 away from the inner cavity 31 for easy grasping.

[0034] During the use process, when it is necessary to disassemble the gas self-closing valve body 1, close the switch of the liquefied gas tank, fully push the first valve 4 into the inner cavity 31, disconnect the communication between the first pipe body 2 and the second pipe body 5 through the first valve 4, then remove the first pipe body 2 from the gas outlet 11 of the valve body 1, and finally separate the valve body 1 from the liquefied gas tank to complete the disassembly of the valve body 1; during installation, connect the gas inlet 12 of the valve body 1 to the liquefied gas tank, insert the first pipe body 2 into the gas outlet 11 of the valve body 1, pull the first valve 4 out of the inner cavity 31 so that the first sealing ring 41 is located near the first opening 32, and the first pipe body 2, the second pipe body 5 and the valve body 1 are communicated to realize the normal use of the gas.

[0035] In this embodiment, by providing a switchable first housing 3 and a first valve 4 between the gas outlet 11 of the gas self-closing valve body 1 and the gas inlet pipe of the gas stove, and disconnecting the communication between the first pipe body 2 and the second pipe body 5 by sliding the first valve 4, the isolation between the valve body 1 and the gas stove is realized, so that when the gas self-closing valve is disassembled, the gas in the gas inlet pipe of the gas stove is retained, reducing the waste of gas resources.

[0036] Embodiment 2

[0037] Further, on the basis of the above embodiments, two first elastic members 42 are symmetrically provided on the first valve 4 near the first sealing ring 41. The first elastic members 42 adopt a common positioning bead structure, and two first grooves 33 are symmetrically provided on the inner wall near the first opening 32. When the first valve 4 is pulled out of the inner cavity 31 during use, the first elastic members 42 are embedded in the first grooves 33 to achieve fixation. At this time, the first sealing ring 41 is located in the inner cavity 31 near the first opening 32, and the first pipe body 2 is communicated with the second pipe body 5.

[0038] In this embodiment, by providing the first elastic members 42 on the first valve 4 and the first grooves 33 on the inner cavity 31 at the first opening 32, when the first pipe body 2 is communicated with the second pipe body 5, the first sealing ring 41 is fixed at the first opening 32, improving the use stability of the product.

[0039] Embodiment 3

[0040] Further, on the basis of the above embodiments, a second sealing ring 21 is provided at one end of the first pipe body 2 connected to the air outlet 11 of the valve body 1. The second sealing ring 21 is arranged around the first pipe body 2. When the first pipe body 2 is inserted into the air outlet 11, the second sealing ring 21 fits against the inner wall of the air outlet 11, and the second sealing ring 21 is in interference fit with the air outlet 11.

[0041] One end of the second pipe body 5 connected to the gas stove inlet pipe is provided with a detachable third sealing ring 51. The third sealing ring 51 is arranged around the second pipe body 5. After selecting a third sealing ring 51 with a suitable size according to the size of the inlet pipe, the second pipe body 5 is inserted into the inlet pipe, and the third sealing ring 51 fits against the inner wall of the inlet pipe, and the third sealing ring 51 is in interference fit with the inlet pipe.

[0042] In this embodiment, by respectively providing the second sealing ring 21 and the third sealing ring 51 on the first pipe body 2 and the second pipe body 5, the airtightness of the product during use is improved, the risk of gas leakage is reduced, and the use safety of the product is improved.

[0043] Embodiment 4

[0044] Further, on the basis of the above embodiments, a second elastic member 22 is provided on the first pipe body 2, and a third elastic member 52 is provided between the third sealing ring 51 and the first housing 3 on the second pipe body 5. A second groove 111 adapted to the second elastic member 22 to be embedded is provided on the inner wall of the air outlet 11 of the valve body 1. When the first pipe body 2 is inserted into the air outlet 11 for installation, the second elastic member 22 is embedded in the second groove 111 to complete the fixation of the first pipe body 2. When the second pipe body 5 is inserted into the inlet pipe of the gas stove, the third elastic member 52 abuts against the inner wall of the inlet pipe to strengthen the connection between the second pipe body 5 and the inlet pipe.

[0045] Among them, both the second elastic member 22 and the third elastic member 52 adopt common positioning bead structures.

[0046] In this embodiment, by respectively arranging the second elastic member 22 and the third elastic member 52 on the first pipe body 2 and the second pipe body 5, the connection between the first pipe body 2 and the valve body 1 is strengthened, the connection between the second pipe body 5 and the air inlet pipe is strengthened, and the use stability of the product is improved.

[0047] It should be noted that the above sequence of embodiments of the present application is only for description and does not represent the superiority or inferiority of the embodiments. And the above specific embodiments of this specification have been described. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve the desired result. Additionally, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired result. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0048] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

[0049] This specification and the drawings are only exemplary descriptions of the present application and are considered to have covered any and all modifications, variations, combinations, or equivalents within the scope of the present application. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the present application and its equivalent technologies, the present application is intended to include these changes and modifications.

Claims

1. A new type of gas self-closing valve, characterized by: The invention comprises a valve body (1), a first tube body (2) having one end connected to an air outlet (11) of the valve body (1), a first shell (3) having one side connected to the other end of the first tube body (2), and a second tube body (5) having one end connected to the other side of the first shell (3); the first shell (3) is provided with an inner cavity (31), and the inner cavity (31) communicates with the first tube body (2) and the second tube body (5); the first shell (3) is provided with a first opening (32) communicated with the inner cavity (31); a first valve (4) is provided at the first opening (32); the first valve (4) is arranged to fit the inner wall of the first shell (3), and the first valve (4) can enter or leave the inner cavity (31) through the first opening (32); when the first valve (4) enters the inner cavity (31), the first valve (4) blocks the communication between the first tube body (2) and the second tube body (5); when the first valve (4) leaves the inner cavity (31), the first tube body (2) is communicated with the second tube body (5).

2. A new type of gas self-closing valve as claimed in claim 1, characterized in that: A first sealing ring (41) is provided at one end of the first valve (4) entering the inner cavity (31); the first sealing ring (41) surrounds the first valve (4) and fits against the inner wall of the first shell (3).

3. A new type of gas self-closing valve as claimed in claim 2, characterized in that: The first valve (4) is provided with a plurality of first elastic members (42), and the inner wall of the first shell (3) is provided with a plurality of first grooves (33) suitable for the first elastic members (42) to be embedded. When the first valve (4) is away from the inner cavity (31) to connect the first tube body (2) and the second tube body (5), the first elastic members (42) are embedded in the first grooves (33).

4. A novel gas self-closing valve as claimed in claim 3, characterized in that: A second sealing ring (21) is provided at one end of the first tube body (2) connected to the air outlet (11) of the valve body (1); the second sealing ring (21) surrounds the first tube body (2) and fits against the inner wall of the air outlet (11) of the valve body (1).

5. A new type of gas self-closing valve as claimed in claim 3, characterized in that: A detachable third sealing ring (51) is provided at one end of the second tube body (5) away from the first shell body (3), and the third sealing ring (51) surrounds the second tube body (5).

6. A novel gas self-closing valve as claimed in claim 4, characterized in that: A plurality of second elastic members (22) are provided at one end of the first tube body (2) connected to the air outlet (11) of the valve body (1); a plurality of second grooves (111) suitable for embedding the second elastic members (22) are provided on the inner wall of the air outlet (11) of the valve body (1); when the first tube body (2) is connected to the air outlet (11) of the valve body (1), the second elastic members (22) are embedded in the second grooves (111).

7. A novel gas self-closing valve as claimed in claim 5, characterized in that: A plurality of third elastic members (52) are provided at one end of the second tube (5) away from the first shell (3).

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