CN115789308A - Gas safety breaker - Google Patents

Abstract

The present invention is a gas safety breaker, which includes: a main body, a blocking part and an elastic return part. The present invention is installed on the pipeline for transporting gas. If the flow of gas is too large, it can block the flow of gas. If the pipeline breaks, a strong air pressure will be generated instantly in the pipeline, so the present invention will act to block to stop the gas from continuing to leak, and this feature can also prevent other conditions from causing air pressure in the pipeline. If it is too strong, it will damage the gas equipment.

Description

Gas Safety Breaker

technical field

The invention relates to a gas safety interrupter, which is installed on a pipeline for conveying gas, and can block the flow of gas if the flow of gas is too large.

Background technique

Gas refers to gas that can be used as fuel (for example: gas, coal gas), which can generate a large amount of heat energy after combustion, so it is widely used in daily life, such as water heaters, gas stoves, etc., which are commonly used as fuel in daily life equipment.

If the home is not equipped with a natural gas pipeline, it must be purchased additionally. Due to its flammable characteristics, the storage of gas needs to be quite rigorous. Storage in metal drums is a more common practice, so the more common way of purchasing is to buy refills There are gas barrels with liquefied gas. Although the gas barrels are very convenient to use, there are still some problems. For example, when a new gas barrel is just connected, there will be a burst of gas with strong pressure when the gas valve is opened. And this kind of gas with higher pressure value is very likely to cause damage to the back-end pipeline (the pipeline between the gas equipment and the gas barrel), or damage to the gas equipment.

In addition, there is another common problem, that is, it is difficult to find the rupture of the back-end pipeline if it is closer to the gas equipment (for example, the part of the back-end pipeline close to the kitchen gas stove is easily blocked by the cabinet of the system kitchen utensils), so it is convenient It will cause a large amount of gas leakage to cause waste and even danger.

Contents of the invention

The main technical problem to be solved by the present invention is to overcome the above-mentioned defects in the prior art, and provide a gas safety breaker, which is installed on the pipeline for transporting gas, and can block the flow of gas if the gas flow rate is too large. It is known that if the pipeline for conveying gas breaks, a strong air pressure will be generated in the pipeline instantly, so the present invention will act to block to stop the continuous leakage of gas, and this feature can also avoid other situations The situation that the air pressure in the pipeline is too strong and damages the gas equipment occurs.

The technical solution adopted by the present invention to solve its technical problems is:

A gas safety breaker, comprising: a main body with an air inlet and an air outlet on the outside, a first chamber and a second chamber inside the main body, the first chamber and the air inlet communicated, the second chamber communicates with the air outlet, the first chamber and the second chamber are connected by a through hole; a blocking member, which is located in the main body and has a connected body section and a head section, The body part passes through the through hole, the head part cannot pass through the through hole and is located in the first chamber; and an elastic return part is partly located in the first chamber and connected to the head part of the blocking part.

Further, a groove is recessed on the side of the head section facing the elastic return member, the groove has a groove opening, and the elastic return member is partially located in the groove.

Further, the groove has a connected wide diameter section and a narrow diameter section, the wide diameter section of the groove is connected with the opening of the groove, and the elastic return part is partially clamped in the narrow diameter section.

Further, the main body has a setting hole, the setting hole is connected to the first chamber, and an adjustment component is set in the setting hole, the adjustment component has a positioning groove, and the adjustment component can be operated to make the positioning groove away from, Close to the head section, one end of the elastic return member is connected to the head section, the other end of the elastic return member is fastened to the positioning groove, and a first leak-proof ring is sandwiched between the adjustment component and the main body.

Further, wherein the adjusting component extends a rod body from the bottom of the positioning groove towards the head section, and the adjusting component is operated to make the rod body push against the head section.

There is further a ventilation component, and the main body has an assembly hole, the assembly hole communicates with the second chamber, the ventilation component is arranged in the assembly hole, the operation of the ventilation component can make the head section of the blocking member away from the through hole.

Further, there is a second anti-leakage ring sandwiched between the ventilation component and the main body.

Further, wherein the ventilation component includes a cap, a control rod, an elastic body, and a combination block, the ventilation component is arranged in the assembly hole with the combination block, a through hole passes through the combination block, and the control rod passes through the assembly hole. In the through hole, the end of the control rod part exposed to the combination block is connected to the cap, and the inner wall of the through hole extends to the center with an annular rib, and the annular rib circles around the control rod, and one end of the elastic body is elastic. Arresting against the annular rib, the other end of the elastic body springs against the cap.

Further, an auxiliary groove is recessed at one end of the control rod facing the body, and the body part is located in the auxiliary groove.

Furthermore, a third anti-leakage ring is encased in the body part of the blocking member, and the third anti-leakage ring is located in the first chamber and abuts against the head section.

The beneficial effect of the present invention is that it is installed on the pipeline for transporting gas. If the flow of gas is too large, the flow of gas can be blocked. It should be known that if the pipeline for transporting gas breaks, a strong burst will be generated in the pipeline instantly. In this way, the present invention will act to block to stop the continuous leakage of gas. Similarly, this feature can also prevent other conditions from causing excessive air pressure in the pipeline and damaging the gas equipment.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is an exploded schematic view of the present invention.

Fig. 3 is a schematic cross-sectional view of line segment III-III shown in Fig. 1 .

Fig. 4 shows the blocking function of the blocking element triggered by excessive air pressure.

Fig. 5 is a schematic diagram of operating the ventilation assembly.

Fig. 6 is a first schematic diagram of the operation adjustment assembly.

Fig. 7 is a second schematic diagram of the operation adjustment assembly.

Explanation of symbols in the figure:

1 subject

11 air inlet

12 air outlet

13 The first chamber

14 Second chamber

15 through holes

16 Setting holes

17 Assembly holes

2 interrupter

21 figure

22 header

221 Groove

2211 wide diameter section

2212 narrow diameter section

222 slot opening

3 elastic return pieces

4 Adjustment components

41 positioning slot

42 rod body

5 1st O-ring

6 Second O-ring

7 Third stop ring

8 Vent assembly

81 cap

82 joystick

83 auxiliary slot

84 elastomers

85 combination blocks

86 through holes

87 ring rib

Detailed ways

For a more detailed understanding of the embodiment of the present invention, please look at it with the accompanying drawings. As shown in Figures 1 to 4, it is a gas safety breaker, which includes: a main body 1 with an air inlet 11 on its outside, An air outlet 12, the main body 1 has a first chamber 13 and a second chamber 14 inside, the first chamber 13 communicates with the air inlet 11, and the second chamber 14 communicates with the air outlet 12 , the first chamber 13 and the second chamber 14 are connected by a through hole 15; a blocking member 2, which is located in the main body 1 and has a connected body section 21 and a head section 22, the body section 21 is worn on The through hole 15, the head section 22 cannot pass through the through hole 15 and is located in the first chamber 13; and an elastic return member 3, part of which is located in the first chamber 13 and connected (fixed) to the blocking member 2 headers 22.

Continuing the above content, the embodiment of the present invention is further described in detail. The air inlet 11 of the present invention is used to connect the gas source (direct connection or pipeline), and the gas outlet 12 is used to connect (with pipeline) to the gas equipment. Among the examples, the elastic return member 3 is an example in the form of a spring, and the initial position 2 of the blocking member is as shown in FIG. When the driving force generated when the gas flows out) is greater than the return force of the elastic return member 3 (the return force can be the pulling force produced when the spring returns to its original state), it will appear as shown in Figure 4. The head section 22 Displacement toward the through hole 15, the elastic return member 3 deforms (the spring is pulled), and when the thrust on the side of the head section 22 away from the through hole 15 disappears, the elastic return member 3 returns to its original shape and returns to its original shape. The prototyping process will drive the head section 22 away from the through hole 15 .

From the above content, we can know the conditions for the displacement of the blocking member 2, that is to say, when the air pressure flowing through the present invention generates a thrust greater than the return force of the elastic return member 3, the first section will appear as shown in Figure 4. 22 is pushed, thereby causing the through hole 15 to be closed, and the air inlet 11 and the air outlet 12 are in a disconnected state, completely blocking the flow of gas from the air outlet 12. With this structure, when the gas flow is too large, the gas can be blocked. Generally speaking, if the gas pipeline is broken, a strong air pressure will be generated instantly in the pipeline, so the invention will act to block the gas to stop the gas from leaking. This feature can also prevent other conditions from causing excessive air pressure in the pipeline and damage to the gas equipment. From this we can see that the present invention is really inventive and novel.

Further shown in FIG. 3 , wherein the head section 22 is concavely provided with a groove 221 toward the side of the elastic return member 3 , the groove 221 has a slot opening 222 , and the elastic return member 3 is partly located in the groove 221 , the setting of the groove 221 facilitates the air pressure to push against the head section 22 .

Further provide a connection method between the elastic return member 3 and the head section 22, as shown in FIG. Connected with the groove opening 222 , the elastic return member 3 is partly fixed in the narrow-diameter section 2212 . This structure not only retains the function of the groove 221 but also effectively connects the elastic return member 3 to the head section 22 .

2 to 6, wherein the main body 1 has a setting hole 16, the setting hole 16 is connected to the first chamber 13, and an adjusting component 4 is set in the setting hole 16, and the adjusting component 4 has a Positioning groove 41, the adjustment assembly 4 is operated to make the positioning groove 41 away from and close to the head section 22, one end of the elastic return member 3 is connected to the head section 22, and the other end of the elastic return member 3 is fastened to the positioning groove 41 There is a first anti-leak ring 5 sandwiched between the adjustment assembly 4 and the main body 1 . The advantage of this structure is that the air pressure thrust required to push the head section 22 can be adjusted by operating the adjustment assembly 4 .

As shown in Figures 2 to 7, the adjusting component 4 extends a rod body 42 at the bottom of the positioning groove 41 towards the head section 22, and the adjusting component 4 is operated so that the rod body 42 pushes against the head section 22, thereby achieving The effect of forcibly closing the through hole 15, in addition, it is known from the foregoing content and the accompanying drawings that the elastic return member 3 is in the form of a spring as an example, and the rod body 42 of this embodiment passes through the elastic return member 3, so that the elastic return member 3. In the process of deformation, it will be limited by the guidance of the rod body 42, and then it will expand and contract stably.

As shown in Figures 1 to 3, there is further a ventilation assembly 8, and the main body 1 has an assembly hole 17, the assembly hole 17 communicates with the second chamber 14, the ventilation assembly 8 is arranged in the assembly hole 17, and the operation of the The ventilation assembly 8 can keep the head section 22 of the blocking member 2 away from the through hole 15. Because when the air pressure is too high and the head section 22 is pushed to close the through hole 15, the high-pressure gas will accumulate in the first chamber 13 and must be vented. Press down (such as removing the present invention) to restore the communication of the air inlet 11 and the air outlet 12, and the setting of the ventilation assembly 8 can be presented as shown in Figure 5. After pressing down, the communication of the air inlet 11 and the air outlet 12 can be restored to This quickly and easily unblocks the gas.

As shown in FIGS. 1 to 3 , a second anti-leakage ring 6 is interposed between the ventilation component 8 and the main body 1 to reduce the possibility of gas leakage from between the ventilation component 8 and the main body 1 .

Further provide a kind of pattern of ventilation assembly 8, as shown in Fig. 1 to Fig. 3, wherein this ventilation assembly 8 comprises a cap 81, a control rod 82, an elastic body 84, a combination block 85, this ventilation assembly 8 Therefore, the assembly block 85 is arranged in the assembly hole 17, a through hole 86 passes through the assembly block 85, the control rod 82 passes through the through hole 86, and the end of the control rod 82 partially exposed on the assembly block 85 is connected to the cap Cover 81, the inner wall of the through hole 86 extends toward the center with an annular rib 87, the annular rib 87 circles around the control rod 82, one end of the elastic body 84 bounces against the annular rib 87, and the elastic body 84 The other end bounces against the cap 81, the cap 81 is designed to make the control rod 82 easier to press, and the control rod 82 is used to push the body part 21 of the blocking member 2, and the design of the elastic body 84 can help the control rod 82 to be pressed. Reset after pressing.

As shown in FIG. 3 , an auxiliary groove 83 is recessed toward the end of the control rod 82 toward the body 21 , and the body 21 is partially located in the auxiliary groove 83 . The auxiliary groove 83 has the function of limiting the displacement path of the elastic return member 3 .

As shown in Fig. 3 and Fig. 4, there is a third anti-leakage ring 7 on the body of the blocking member 2, and the third anti-leakage ring 7 is located in the first chamber 13 and abuts against the head section 22. This structure is the main When the section 22 closes the through hole 15 , it can effectively prevent gas from leaking from the first chamber 13 to the gas outlet 12 .

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still belong to within the scope of the technical solutions of the present invention.

Claims (10)

1. A gas safety breaker, characterized in that it comprises: A main body has an air inlet and an air outlet on the outside, a first chamber and a second chamber inside the main body, the first chamber communicates with the air inlet, and the second chamber communicates with the air inlet. The air outlet is connected, and the first chamber and the second chamber are connected by a through hole; a blocking piece, which is located in the main body and has a connected body and a head, the body passes through the through hole, and the head cannot pass through the through hole and is located in the first chamber; and an elastic return part, which is partly located in the first chamber and connected to the head section of the blocking part. 2. The gas safety interrupter according to claim 1, wherein a groove is recessed on the side of the head section facing the elastic return member, the groove has a slot opening, and the elastic return member is partially located in this groove. 3. The gas safety interrupter according to claim 2, characterized in that, the groove has a connected wide diameter section and a narrow diameter section, the wide diameter section of the groove is connected with the opening of the groove, and the elastic The return part is partially clamped in the narrow diameter section. 4. The gas safety interrupter according to claim 1, wherein the main body has a setting hole, the setting hole is connected to the first chamber, and an adjusting component is set in the setting hole, the adjusting component There is a positioning slot, the adjustment assembly is operated to make the positioning slot away from and close to the head section, one end of the elastic return member is connected to the head section, and the other end of the elastic return member is fastened to the positioning slot, the adjustment assembly and the A first anti-leakage ring is sandwiched between the main bodies. 5 . The gas safety interrupter according to claim 4 , wherein a rod extends from the bottom of the positioning groove toward the head section, and the adjustment assembly is operated to make the rod push against the head section. 5 . 6. The gas safety interrupter according to claim 1, characterized in that, there is further a vent assembly, and the main body has an assembly hole, the assembly hole communicates with the second chamber, the vent assembly is arranged in the assembly hole, The vent assembly is operated to keep the head section of the shutter away from the through hole. 7. The gas safety interrupter according to claim 6, characterized in that, a second leak-proof ring is sandwiched between the vent assembly and the main body. 8. The gas safety interrupter according to claim 6, wherein the vent assembly includes a cap, a control rod, an elastic body, and a combination block, and the vent assembly is arranged on the assembly block The assembly hole has a through hole through the combination block, the control rod passes through the through hole, and the control rod part is exposed at one end of the combination block to connect with the cap, and the inner wall of the through hole extends to the center with an annular rib, The annular rib is wound around the control rod, one end of the elastic body bounces against the annular rib, and the other end of the elastic body bounces against the cap. 9. The gas safety interrupter according to claim 8, wherein an auxiliary groove is recessed at one end of the control rod facing the body, and the body part is located in the auxiliary groove. 10. The gas safety interrupter according to claim 1, characterized in that, a third anti-leakage ring is wrapped around the body of the interrupter, and the third anti-leakage ring is located in the first chamber and abuts against the head part.

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