A gas valve for transferring gas from a single path to multiple paths

Abstract

This utility model relates to a single-path to multi-path gas distribution valve for gas valves, including a valve body with a gas outlet connected to a gas distribution pipe. The gas distribution pipe has several gas outlets, and a transfer chamber is provided in the gas distribution pipe at the corresponding positions of the gas outlets. The transfer chamber has an inlet and an outlet. The inlet is connected to the gas outlet through the gas distribution pipe, and the outlet is connected to the gas outlets. A movable valve is provided in the transfer chamber. A limiting structure is provided between the connecting chamber and the movable valve to limit the axial movement of the movable valve along the inlet. The movable valve has a gas guide channel. The conduction state of each gas outlet can be controlled individually through the movable valve. At the same time, the movable valve will not be accidentally displaced under the action of the limiting structure, ensuring that the movable valve can still control the conduction state of the gas outlet normally even if the pressure reducing valve fails, avoiding safety accidents caused by high-pressure gas being ejected from the gas outlet.

Description

Technical Field

[0001] This utility model relates to the technical field of gas equipment, specifically to a gas distribution valve for transferring gas from a single path to multiple paths. Background Technology

[0002] Patent document CN218000500U discloses a gas valve with adjustable air intake. Specifically, it includes "a gas valve with adjustable air intake, comprising a valve body, wherein a main air passage is provided in the valve body, and an air intake passage and an air outlet passage communicating with the main air passage are respectively provided on the valve body, wherein at least one air outlet pipe is connected to the air outlet passage."

[0003] There are no control valves installed at the positions of the gas outlet pipes on the gas outlet duct, so it is impossible to control the conduction status of each gas outlet pipe individually. Moreover, when the pressure reducing valve connected to the gas valve fails to reduce pressure, high-pressure gas may be directly ejected from the gas outlet pipe, which poses a certain safety hazard.

[0004] Therefore, further improvements are needed. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a single-path to multi-path gas distribution valve for gas valves. The conduction state of each gas distribution outlet can be controlled individually through the movable valve component. At the same time, the movable valve component will not be accidentally displaced under the action of the limiting structure, ensuring that the movable valve component can still control the conduction state of the gas distribution outlet normally even if the pressure reducing valve fails, thus avoiding safety accidents caused by high-pressure gas being ejected from the gas distribution outlet.

[0006] The purpose of this utility model is achieved as follows: A gas valve for transferring a single gas path to multiple gas paths includes a valve body with a gas outlet connected to a gas distribution pipe. The gas distribution pipe has several gas outlets, and a transfer chamber is provided in the gas distribution pipe at the corresponding positions of the gas outlets. The transfer chamber has an inlet and an outlet. The inlet is connected to the gas outlet through the gas distribution pipe, and the outlet is connected to the gas outlets. A movable valve is provided in the transfer chamber. A limiting structure is provided between the connecting chamber and the movable valve to limit the axial movement of the movable valve along the inlet. The movable valve has a gas guide channel.

[0007] The air outlet of the air guide channel is connected to the air inlet. The movable valve rotates to align or offset the air inlet of the air guide channel with the air inlet, thereby connecting or disconnecting the air inlet and the air outlet.

[0008] Alternatively, the air inlet end of the air guide channel is connected to the air inlet, and the movable valve rotates to align or offset the air outlet end of the air guide channel with the air outlet, thereby connecting or disconnecting the air inlet and the air outlet.

[0009] As a specific embodiment, a first sealing element is provided between the movable valve and the air inlet, and the first sealing element is in close contact with the outer side of the movable valve and the air inlet.

[0010] As a specific embodiment, the movable valve is spherical in shape, and a second sealing element is fixedly connected to the position of the movable valve on the other side of the first sealing element in the transition cavity. A limiting structure adapted to the shape of the movable valve is formed between the first sealing element and the second sealing element.

[0011] As a specific embodiment, the shape of the transition cavity matches the shape of the movable valve, and the movable valve is connected and fitted within the transition cavity to form a limiting structure.

[0012] As a specific embodiment, the movable valve is connected to a valve stem, and a connecting part is provided on the side of the valve stem near the movable valve. The connecting part is flat in shape, and a connecting groove corresponding to the shape of the connecting part is provided on the movable valve. The valve stem can drive the movable valve to rotate through the cooperation of the connecting part and the connecting groove.

[0013] As a specific embodiment, the gas distribution pipe is in the shape of a long pipe, and is placed horizontally on the outside of the gas outlet and connected and fixed to the valve body by a locking device.

[0014] As a specific embodiment, the gas distribution pipe is provided with a main gas outlet at the position corresponding to the gas outlet, and the main gas outlet is connected to the gas outlet.

[0015] As a specific embodiment, there are two gas outlets, which are located at the beginning and end of the gas distribution pipe respectively, and the main gas outlet is located in the middle of the gas distribution pipe.

[0016] As a specific embodiment, the number of gas distribution outlets is one, with the main gas outlet and the gas distribution outlet respectively located at the beginning and end of the gas distribution pipe.

[0017] The beneficial effects of this utility model are: The conduction status of each gas outlet can be controlled individually by the movable valve. At the same time, the movable valve will not be accidentally displaced under the action of the limiting structure, ensuring that the movable valve can still control the conduction status of the gas outlet normally even if the pressure reducing valve fails, thus avoiding safety accidents caused by high-pressure gas being ejected from the gas outlet. Attached Figure Description

[0018] Figure 1 This is a cross-sectional view of the first embodiment of the present invention. Figure 1 .

[0019] Figure 2 This is a cross-sectional view of the first embodiment of the present invention. Figure 2 .

[0020] Figure 3 This is a cross-sectional view of the first embodiment of the present invention. Figure 3 .

[0021] Figure 4 This is a cross-sectional view of the first embodiment of the present invention. Figure 4 .

[0022] Figure 5 This is a schematic diagram of the structure of the first embodiment of the present utility model.

[0023] Figure 6 This is a partially exploded view of the first embodiment of the present invention.

[0024] Figure 7 This is an enlarged view of section A in the first embodiment of this utility model.

[0025] Figure 8 This is an enlarged view of section B in the first embodiment of this utility model.

[0026] Figure 9 This is a schematic diagram of the structure of the second embodiment of the present utility model. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0028] First embodiment: See Figures 1-8 This gas valve is a single-path to multi-path gas distribution valve, including a valve body 1. The valve body 1 is provided with an outlet 11. The outlet 11 is connected to a gas distribution pipe 2. The gas distribution pipe 2 is provided with several gas distribution outlets 21. A transition cavity 22 is provided in the gas distribution pipe 2 at the position corresponding to the gas distribution outlets 21. The transition cavity 22 has an inlet 221 and an outlet 222. The inlet 221 is connected to the outlet 11 through the gas distribution pipe 2. The outlet 222 is connected to the gas distribution outlets 21. A movable valve 3 is provided in the transition cavity 22. A limiting structure is provided between the connecting cavity and the movable valve 3 to limit the axial movement of the movable valve 3 along the inlet 221. The movable valve 3 is provided with a gas guide channel 31.

[0029] The air outlet of the air guide channel 31 is connected to the air outlet 222. The movable valve 3 rotates to align or offset the air inlet of the air guide channel 31 with the air inlet 221, so that the air inlet 221 is connected to or disconnected from the air outlet 222.

[0030] like Figure 1 , Figure 2 As shown, the air inlet 221 and the air outlet 222 are interconnected, as... Figure 3 ,、 Figure 4 As shown, the air inlet 221 and the air outlet 222 are isolated from each other.

[0031] After the gas enters the gas distribution pipe 2, the user can control the conduction state of the gas distribution outlet 21 by adjusting the position of the movable valve 3, thereby improving the user's control accuracy over each gas distribution outlet 21.

[0032] When the pressure reducing valve that works with the gas valve fails to reduce pressure, the high-pressure gas enters the gas distribution pipe 2 and acts on the movable valve 3. The movable valve 3 will not be accidentally displaced under the action of the limiting structure, ensuring that the movable valve 3 can still control the conduction state of the gas distribution outlet 21 normally even when the pressure reducing valve fails, thus avoiding a safety accident caused by high-pressure gas being ejected from the gas distribution outlet 21.

[0033] In other different embodiments, the air inlet end of the air guide channel 31 may be connected to the air inlet 221, and the movable valve 3 may rotate to align or offset the air outlet end of the air guide channel 31 with the air outlet 222, thereby connecting or disconnecting the air inlet 221 and the air outlet 222.

[0034] Furthermore, a first sealing element 41 is provided between the movable valve 3 and the air inlet 221. The first sealing element 41 is in close contact with the outer side of the movable valve 3 and the air inlet 221 respectively. The first sealing element 41 can improve the airtightness of the movable valve 3 and the surrounding area of ​​the air inlet 221, and prevent gas from flowing from the outer side of the movable valve 3 to the air outlet 222.

[0035] Furthermore, the movable valve 3 is spherical in shape, and a second seal 42 is fixedly connected in the transition cavity 22 to the position of the movable valve 3 on the other side of the first seal 41. The second seal 42 can further improve the airtightness between the transition cavity 22 and the movable valve 3.

[0036] The first seal 41 and the second seal 42 form a limiting structure that is adapted to the shape of the movable valve 3. At the same time, the cooperation between the first seal 41 and the second seal 42 can also limit the movable valve 3, so that the movable valve 3 can remain in place without accidental displacement when subjected to high pressure gas from the direction of the air inlet 221.

[0037] Furthermore, the shape of the transition cavity 22 matches the shape of the movable valve 3. The movable valve 3 is connected and fitted within the transition cavity 22 to form a limiting structure. The transition cavity 22 can also provide a certain auxiliary limiting effect for the movable valve 3, thereby further reducing the chance of the movable valve 3 being accidentally displaced under the action of high-pressure gas.

[0038] Furthermore, the movable valve 3 is connected to a valve stem 5. The valve stem 5 has a connecting part 51 on the side near the movable valve 3. The connecting part 51 is flat. The movable valve 3 has a connecting groove 32 corresponding to the shape of the connecting part 51. The valve stem 5 can drive the movable valve 3 to rotate through the cooperation of the connecting part 51 and the connecting groove 32. The user can control the rotation of the movable valve 3 by controlling the rotation of the valve stem 5 from the outside, thereby controlling the conduction state between the air outlet 11 and the air distribution outlet 21.

[0039] Furthermore, the air distribution pipe 2 is in the shape of a long pipe. The air distribution pipe 2 is placed horizontally on the outside of the air outlet 11 and is connected and fixed to the valve body 1 through a locking device. The layout of the air distribution pipe 2 is more reasonable and can make better use of space.

[0040] Furthermore, a main air outlet 23 is provided on the gas distribution pipe 2 at the position corresponding to the air outlet 11, and the main air outlet 23 is connected to the air outlet 222.

[0041] Furthermore, there are two gas outlets 21, which are located at the beginning and end of the gas distribution pipe 2, respectively, and the main gas outlet 23 is located in the middle of the gas distribution pipe 2.

[0042] Second embodiment: See Figure 9 The difference between this embodiment and the first embodiment is that the number of gas outlets 21 of the gas valve that uses a single-path to multi-path gas distribution valve is one, and the main gas outlet 23 and the gas outlet 21 are respectively set at the beginning and end of the gas distribution pipe 2.

[0043] The remaining undescribed parts are the same as in the first embodiment and will not be repeated here.

[0044] The above embodiments are merely preferred embodiments of this utility model, and other implementations are also possible. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model, and all such equivalent modifications or substitutions are included within the scope set forth in the claims of this application.

Claims

1. A single-path transfer multi-path gas distribution valve for a gas valve, comprising a valve body (1), wherein an outlet (11) is arranged on the valve body (1), a gas distribution pipe (2) is connected to the outlet (11), and a plurality of gas distribution outlets (21) are arranged on the gas distribution pipe (2), characterized in that, The gas distribution pipe (2) is provided with a transition cavity (22) at the position corresponding to the gas distribution outlet (21). The transition cavity (22) has an air inlet (221) and an air outlet (222). The air inlet (221) is connected to the air outlet (11) through the gas distribution pipe (2), and the air outlet (222) is connected to the gas distribution outlet (21). The transition cavity (22) is provided with a movable valve (3). A limiting structure is provided between the connecting cavity and the movable valve (3) to limit the axial movement of the movable valve (3) along the air inlet (221). The movable valve (3) is provided with an air guide channel (31). The outlet end of the air guide channel (31) is connected to the outlet (222). The movable valve (3) rotates to align or offset the inlet end of the air guide channel (31) with the inlet (221), so that the inlet (221) and the outlet (222) are connected or disconnected. Alternatively, the air inlet end of the air guide channel (31) is connected to the air inlet (221), and the movable valve (3) rotates to align or offset the air outlet end of the air guide channel (31) with the air outlet (222), so that the air inlet (221) and the air outlet (222) are connected or disconnected.

2. The single path transfer multi-path gas valve for gas valve according to claim 1, characterized in that: A first seal (41) is provided between the movable valve (3) and the air inlet (221), and the first seal (41) is in close contact with the outer side of the movable valve (3) and the air inlet (221).

3. The single path diverting multi-path gas valve for gas valves according to claim 2, characterized in that: The movable valve (3) is spherical in shape. A second seal (42) is fixedly connected in the transition cavity (22) to the position on the other side of the movable valve (3) relative to the first seal (41). A limiting structure that is adapted to the shape of the movable valve (3) is formed between the first seal (41) and the second seal (42).

4. The single path diverting multi-path gas valve for gas valves according to claim 3, characterized in that: The shape of the transition cavity (22) matches the shape of the movable valve (3), and the movable valve (3) is connected and fitted in the transition cavity (22) to form a limiting structure.

5. The single path diverting multi-path gas valve for gas valves according to claim 1, characterized in that: The movable valve (3) is connected to a valve stem (5). The valve stem (5) has a connecting part (51) on one side near the movable valve (3). The connecting part (51) is flat. The movable valve (3) has a connecting groove (32) corresponding to the shape of the connecting part (51). The valve stem (5) can drive the movable valve (3) to rotate through the cooperation of the connecting part (51) and the connecting groove (32).

6. The single path diverting multi-path gas valve for gas valves according to claim 1, characterized in that: The gas distribution pipe (2) is long and is placed horizontally on the outside of the gas outlet (11) and connected and fixed to the valve body (1) by a locking member.

7. The single path diverting multi-path gas valve for gas valves according to any one of claims 1-6, characterized in that: The gas distribution pipe (2) is provided with a main gas outlet (23) at the position corresponding to the gas outlet (11), and the main gas outlet (23) is connected to the gas outlet (222).

8. The single path diverting multi-path gas valve for gas valves according to claim 7, characterized in that: There are two gas outlets (21), which are located at the beginning and end of the gas distribution pipe (2) respectively, and the main gas outlet (23) is located in the middle of the gas distribution pipe (2).

9. The gas valve for transferring gas from a single path to multiple paths according to claim 7, characterized in that: The number of gas distribution outlets (21) is one, and the main gas outlet (23) and the gas distribution outlet (21) are respectively located at the beginning and end of the gas distribution pipe (2).

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