Connecting valve device and gas appliance

Abstract

The utility model discloses a connecting valve device and a gas appliance. The connecting valve device comprises a valve body used for being connected with a gas cylinder to input gas; one end of the communication pipeline is connected with the valve main body; the switching structure is connected to the other end of the communicating pipeline to output fuel gas and comprises an adapter and a valve core assembly arranged in the adapter, the adapter is used for being connected between an external structure and the communicating pipeline, and the valve core assembly is installed in the adapter and used for being matched with an ejector pin of the external structure; and a channel for communicating the adapter with the communicating pipeline is opened or closed. According to the connecting valve device, the situation that air leakage occurs when the adapter is not connected with a kitchen range and the valve main body is in an open state can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gas equipment, in particular to a connecting valve device and a gas appliance. Background Art

[0002] When a gas cylinder is delivering gas to a stove, for example, when delivering gas to an outdoor stove, a connecting valve device is required to deliver and shut off the gas. That is, the connecting valve device needs to be connected to both the gas cylinder and the stove.

[0003] In the prior art, when a connecting valve device is used to connect a gas cylinder to a stove, the gas supply from the gas cylinder is closed or opened by means of a valve at one end of the gas cylinder. However, the end connected to the stove is always in a conducting state, which results in gas leakage when the end of the connecting valve device connected to the stove is not connected to the stove and the handle at the end of the gas cylinder is forgotten to close the valve. Utility Model Content

[0004] In order to solve at least one of the problems existing in the above-mentioned prior art, according to one aspect of the present invention, a connecting valve device is provided, comprising:

[0005] The valve body is used to connect the gas cylinder to input gas;

[0006] a communication pipe, one end of which is connected to the valve body;

[0007] An adapter structure is connected to the other end of the connecting pipe to output gas, and includes an adapter and a valve core assembly provided in the adapter. The adapter is used to connect between the external structure and the connecting pipe. The valve core assembly is installed in the adapter and is used to cooperate with the ejector pin of the external structure to open or close the channel connecting the adapter and the connecting pipe.

[0008] In some embodiments, the valve core assembly includes:

[0009] a first mounting sleeve, the first mounting sleeve being mounted in the adapter;

[0010] a push rod slidably disposed in the first mounting sleeve and configured to cooperate with the ejector pin to open or close the passage opening between the first mounting sleeve and the communicating pipe;

[0011] An elastic member is arranged in the first mounting sleeve and sleeved outside the push rod, and is respectively abutted against the first mounting sleeve and the push rod to apply elastic force to the push rod.

[0012] In some embodiments, the valve core assembly further includes a sealing gasket, which is disposed outside the push rod and is used to abut against the end of the first mounting sleeve when the push rod closes the channel opening to achieve sealing of the first mounting sleeve.

[0013] In some embodiments, the first mounting sleeve includes a first sub-sleeve and a second sub-sleeve that are independently arranged, one end of the first sub-sleeve is sleeved outside one end of the second sub-sleeve, the first sub-sleeve and the second sub-sleeve are both connected to the adapter, and the second sub-sleeve is provided with the passage opening.

[0014] In some embodiments, the valve core assembly further includes a second mounting sleeve, which is disposed outside an end of the push rod facing the communicating pipe and is sleeved outside the sealing gasket.

[0015] In some embodiments, the communicating pipe is a stainless steel braided tube.

[0016] In some embodiments, the valve body comprises:

[0017] A body, used to connect to the gas cylinder, and connected to one end of the connecting pipe. The body is provided with an air inlet and a flow channel connected to the connecting pipe, and the air inlet can be connected to or disconnected from the flow channel;

[0018] A knob is movably mounted on the body and is used to open or close the port connecting the flow channel to the air inlet.

[0019] In some embodiments, the valve body further includes a limit rod, which is provided at one end of the body connected to the knob and is located in the channel of the body for installing the knob. A notch is provided on the knob, and the limit rod can move relative to the knob in the notch to limit the movement of the knob in the opening direction or closing direction of the port.

[0020] In some embodiments, the limiting rod is disposed through two opposite side walls of the body.

[0021] Another aspect of the present invention provides a gas appliance comprising the connecting valve device described above.

[0022] In summary, the connecting valve device and the gas appliance provided by the present invention have the following technical effects:

[0023] The gas is input by connecting the valve body and the gas cylinder, transported through the connecting pipe, and connected to the external structure through the adapter in the adapter structure, such as connecting to a stove or a secondary flow device, to output the gas. Since a valve core assembly is provided in the adapter structure, the output of the gas in the connecting pipe can be realized only when the adapter and the external structure are in a connected state and the ejector pin in the external structure pushes open the valve core assembly, thereby avoiding gas leakage when the adapter structure is not connected to the external structure and the valve body is in an open state. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of a connecting valve device according to an embodiment of the present utility model;

[0025] Figure 2 for Figure 1 A schematic diagram of the structure of the transfer structure in FIG.

[0026] Figure 3 for Figure 2 Schematic diagram of the cross section along the AA direction;

[0027] Figure 4 for Figure 2 The adapter structure in the figure hides the exploded diagram of the adapter;

[0028] Figure 5 for Figure 3 A schematic structural diagram of the valve core assembly;

[0029] Figure 6 for Figure 1 A three-dimensional schematic diagram of the valve body;

[0030] Figure 7 for Figure 6 Schematic diagram of the structure of the valve body;

[0031] Figure 8 for Figure 7 Schematic diagram of the cross section along the BB direction.

[0032] Figure: 100-connecting valve device, 10-valve body, 11-body, 111-flow channel, 1111-first section, 1112-second section, 112-port, 113-air inlet, 12-knob, 121-control section, 122-tapered section, 123-matching section, 124-notch, 13-limiting rod, 14-second bamboo head, 20-connecting pipe, 30-adapter structure, 31-adapter, 311-connecting sleeve, 312- Support sleeve, 3121-first bamboo head, 313-first sealing ring, 32-valve core assembly, 321-first mounting sleeve, 3211-first sub-sleeve, 3212-second sub-sleeve, 3213-channel opening, 322-push rod, 3221-main rod, 3222-plug, 3222a-reducing diameter section, 3222b-constant diameter section, 3223-support head, 323-elastic part, 324-sealing gasket, 325-second mounting sleeve, 40-sleeve. DETAILED DESCRIPTION

[0033] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0036] The present invention will be further described in detail below with reference to the accompanying drawings.

[0037] See also Figures 1 to 8 , a connecting valve device 100 provided in an embodiment of the present utility model includes a valve body 10, a connecting pipe 20 and a transition structure 30.

[0038] Among them, see Figure 1The valve body 10 is used to connect to the gas cylinder to input gas; one end of the connecting pipe 20 is connected to the valve body 10; the adapter structure 30 is connected to the other end of the connecting pipe 20 to output gas, including an adapter 31 and a valve core assembly 32 provided in the adapter 31. The adapter 31 is used to connect between the external structure and the connecting pipe 20. The valve core assembly 32 is installed in the adapter 31 and is used to cooperate with the ejector pin of the external structure to open or close the channel connecting the adapter 31 and the connecting pipe 20.

[0039] The above-mentioned connecting valve device 100 is connected to the gas cylinder through the valve body 10 to input gas, transports the gas through the connecting pipe 20, and is connected to the external structure through the adapter 31 in the adapter structure 30, such as being connected to a stove or a secondary flow device, to output the gas. Since a valve core assembly 32 is provided in the adapter structure 30, the output of the gas in the connecting pipe 20 can be realized only when the adapter 31 and the external structure are in a connected state and the ejector pin in the external structure pushes open the valve core assembly 32, thereby avoiding gas leakage when the adapter structure 30 is not connected to the external structure and the valve body 10 is in an open state.

[0040] Among them, the external structure can be a gas appliance or a secondary flow control device. The gas appliance and the flow control device are installed with the same docking joint, which is used to connect to the adapter 31. At the same time, the connector can push open the valve core assembly 32, so that the gas in the connecting pipe 20 can be discharged from the adapter 31.

[0041] Specifically, see Figures 2 to 4 The adapter 31 includes a supporting sleeve 312 and a connecting sleeve 311 which is sleeved on one end of the supporting sleeve 312. The connecting sleeve 311 is provided with an internal thread, which is used to be threadedly connected to the external thread on the docking head. The valve core assembly 32 is arranged in the supporting sleeve 312, and the docking head is provided with a ejector pin. When the docking head and the connecting sleeve 311 are connected, the ejector pin is inserted into the supporting sleeve 312 to push open the valve core assembly 32. At this time, the gas flows out through the channel in the supporting sleeve 312.

[0042] It can be understood that since the gas will flow out through the channel in the ejector pin on the adapter, in order to prevent the gas from flowing out from the gap between the outer wall of the ejector pin and the inner wall of the supporting sleeve 312 after the ejector pin pushes open the valve core assembly 32, the adapter 31 also includes a first sealing ring 313. The first sealing ring 313 is provided on the inner wall of the supporting sleeve 312, and is used to abut against the outer surface of the ejector pin when the ejector pin is inserted into the supporting sleeve 312, thereby achieving sealing.

[0043] Among them, the structure of the valve core component 32 is as follows Figures 3 to 5As shown, it includes a first mounting sleeve 321, a push rod 322, an elastic member 323 and a sealing gasket 324. The first mounting sleeve 321 is installed in the adapter 31, specifically, it is arranged in the abutting sleeve 312; the push rod 322 is slidably arranged in the first mounting sleeve 321, and is used to cooperate with the ejector pin to open or close the channel opening 3213 connecting the first mounting sleeve 321 and the connecting pipe 20, that is, the channel connecting the adapter 31 and the connecting pipe 20, the valve core assembly 32 is arranged in the channel, the first mounting sleeve 321 also has a channel opening 3213 connected to the channel, the elastic member 323 is arranged in the first mounting sleeve 321, and is sleeved on the outside of the push rod 322, respectively with the first mounting sleeve 321, The push rods 322 are pressed against each other to apply elastic force to the push rods 322. In this way, when the adapter 31 and the docking joint are gradually connected through threads, the ejector pin of the docking joint gradually moves toward the valve core assembly 32. When the ejector pin contacts the push rod 322, it pushes the push rod 322 toward the connecting pipe 20. At this time, the push rod 322 opens the channel opening 3213 connecting the first mounting sleeve 321 and the connecting pipe 20. At the same time, the movement of the push rod 322 compresses the elastic member 323. When the docking joint is removed, the push rod 322 is pushed back to its original position under the elastic force of the elastic member 323.

[0044] Among them, the structure of the push rod 322 is as follows Figure 5 As shown, the push rod 322 includes a main rod 3221 and a plug 3222 disposed at one end of the main rod 3221. The plug 3222 has an outer diameter larger than that of the push rod 322. The plug 3222 is used to cooperate with the first mounting sleeve 321 to close or open the passage opening 3213 of the first mounting sleeve 321. The plug 3222 includes a reducing section 3222a and a constant diameter section 3222b. The reducing section 3222a has a tapered outer diameter that gradually decreases in size away from the connecting pipe 20, while the constant diameter section 3222b is disposed toward the connecting pipe 20 and has a constant outer diameter. When closing the first mounting sleeve 321, the reducing section 3222a cooperates with the first mounting sleeve 321 to close the passage opening 3213. The reducing section 3222a serves as a guide. When the push rod 322 needs to close the passage opening 3213, the plug 3222, with its gradually changing outer diameter, slides conveniently into the first mounting sleeve 321.

[0045] Furthermore, in order to facilitate the installation of the elastic member 323, the push rod 322 also includes a supporting head 3223, which is arranged at the other end of the main rod 3221 and is used for the elastic member 323 to support it, so that it can cooperate with the inner wall of the first mounting sleeve 321 to achieve the installation of the elastic member 323 and the compression of the elastic member 323 when the push rod 322 slides relative to the first mounting sleeve 321.

[0046] Furthermore, when the push rod 322 is in a closed state relative to the first mounting sleeve 321, in order to ensure the sealing effect of the channel opening 3213 of the first mounting sleeve 321, the valve core assembly 32 also includes a sealing gasket 324, which is arranged on the outside of the push rod 322 and is used to abut against the end of the first mounting sleeve 321 when the push rod 322 closes the channel opening 3213, so as to achieve sealing of the first mounting sleeve 321.

[0047] It can be understood that the sealing gasket 324 is against the end of the first mounting sleeve 321, that is, the outer diameter of the sealing gasket 324 is larger than the outer diameter of the first mounting sleeve 321 toward the end of the sealing gasket 324, so that when the elastic member 323 drives the push rod 322 to return to its original position, the sealing gasket 324 is blocked on the end of the first mounting sleeve 321, and can also have a limiting effect on the movement of the push rod 322; at the same time, since it is blocked on the end of the first mounting sleeve 321 at this time, a sealing effect on the first mounting sleeve 321 is achieved.

[0048] Among them, since the elastic member 323 needs to be installed in the first mounting sleeve 321, in order to facilitate the installation of the push rod 322 and the elastic member 323 on the first mounting sleeve 321, the first mounting sleeve 321 includes an independently arranged first sub-sleeve 3211 and a second sub-sleeve 3212. One end of the first sub-sleeve 3211 is sleeved on the outside of one end of the second sub-sleeve 3212. The first sub-sleeve 3211 and the second sub-sleeve 3212 are both connected to the supporting sleeve 312, and the second sub-sleeve 3212 is provided with a channel opening 3213. In this way, by setting the first mounting sleeve 321 to include two parts, it is convenient to set the elastic member 323 inside the first sub-sleeve 3211 and the second sub-sleeve 3212.

[0049] The first sub-housing 3211 and the second sub-housing 3212 can be connected into a whole by riveting, thereby ensuring the stability of the connection.

[0050] See also Figures 3 to 5 In one embodiment of the present invention, since a sealing gasket 324 is provided on the outer sleeve of the push rod 322, the sealing gasket 324 is flexible. In order to ensure the sealing effect of the sealing gasket 324 on the end of the first mounting sleeve 321, the valve core assembly 32 also includes a second mounting sleeve 325. The second mounting sleeve 325 is provided at one end of the push rod 322 facing the connecting pipe 20 and is sleeved on the outside of the sealing gasket 324. In this way, the sealing gasket 324 is installed by providing the second mounting sleeve 325. The second mounting sleeve 325 is a rigid structure. When the sealing gasket 324 and the first mounting sleeve 321 are in contact with each other, the second mounting sleeve 325 limits the deformation tendency of the sealing gasket 324, thereby ensuring the sealing effect of the sealing gasket 324 on the first mounting sleeve 321.

[0051] Furthermore, since the push rod 322 moves toward the connecting pipe 20, it may hit the inner wall of the cavity of the abutment sleeve 312 of the adapter 31, which may cause wear. Therefore, the second mounting sleeve 325 of this embodiment is also mounted on the end of the push rod 322, thereby achieving the effect of protecting the end of the push rod 322. In other words, the second mounting sleeve 325 of this embodiment has a structure similar to a hat, which is mounted on the end of the push rod 322 and also accommodates the sealing gasket 324.

[0052] See also Figures 6 to 8 In one embodiment of the present invention, the valve body 10 includes a main body 11 and a knob 12 provided on the main body 11 .

[0053] Among them, the main body 11 is used to connect the gas cylinder, and the main body 11 is connected to one end of the connecting pipe 20. The main body 11 is provided with an air inlet 113 and a flow channel 111 connected to the connecting pipe 20. The air inlet 113 can be connected or disconnected with the flow channel 111; the knob 12 is movably installed on the main body 11, and is used to open or close the port 112 of the flow channel 111 connecting to the air inlet 113. In this way, through the movement of the knob 12 on the main body 11, such as rotation or extension, the port 112 of the flow channel 111 connecting to the air inlet 113 can be opened or closed, thereby realizing the control of the on and off of the air intake.

[0054] Specifically, the air inlet 113 of this embodiment is arranged on the side wall of the main body 11, the flow channel 111 is arranged along the axial direction of the main body 11, the knob 12 is arranged at the opposite end where the main body 11 and the connecting pipe 20 are connected, and is provided with an external thread, and an internal thread is provided in the main body 11. The knob 12 realizes the opening or closing of the port 112 of the flow channel 111 by rotation.

[0055] Specifically, the flow channel 111 includes a first section 1111 and a second section 1112. The diameter of the first section 1111 is larger than the diameter of the second section 1112. The connecting pipe 20 is arranged in the first section 1111. The second section 1112 is provided with a port 112 for cooperating with the knob 12 to realize the on and off of the gas or the adjustment of the flow rate.

[0056] Among them, the knob 12 includes a control section 121, a tapered section 122 and a matching section 123. The outer diameter of the control section 121 gradually increases toward the tapered section 122. The control section 121 is used to extend into the second section 1112 of the flow channel 111. As the control section 121 slowly leaves the second section 1112, more gas can flow into the second section 1112. The outer diameter of the tapered section 122 gradually increases toward the matching section 123, and the outer diameter is greater than the outer diameter of the control section 121. The matching section 123 is used to cooperate with the thread on the inner wall of the main body 11 to realize the switching function of the knob 12 after rotation.

[0057] Furthermore, since the knob 12 rotates relative to the body 11, in order to prevent the knob 12 from being stuck in the body 11 due to excessive forward rotation or falling out of the body 11 due to excessive reverse rotation, the valve body 10 further includes a limit rod 13. The limit rod 13 is provided at one end of the body 11 connected to the knob 12 and is located in the channel of the body 11 for mounting the knob 12. A notch 124 is provided on the knob 12. Specifically, a notch 124 is provided on the mating section 123. The limit rod 13 can move relative to the knob 12 in the notch 124 to limit the movement of the knob 12 in the opening direction or the closing direction of the port 112. In this way, by also providing a limit rod 13 on the body 11 When the knob 12 moves in the direction of opening the port 112, that is, when it moves in the direction away from the connecting pipe 20, after moving a certain distance, the side wall of the notch 124 and the limiting rod 13 are held against each other, and the knob 12 cannot continue to move. This avoids the knob 12 falling out of the main body 11. When the knob 12 moves in the direction of closing the port 112, that is, when it moves in the direction close to the connecting pipe 20, after moving a certain distance, the other side wall of the notch 124 and the limiting rod 13 are held against each other, and the knob 12 cannot continue to move. This prevents the knob 12 from extending too far into the main body 11 and getting stuck in the main body 11.

[0058] Among them, in order to facilitate the installation of the limit rod 13, the limit rod 13 is penetrated through the opposite side walls of the main body 11, that is, when the limit rod 13 is set, it penetrates from the side wall of the main body 11 into the channel for installing the knob 12, and passes out from the side wall on the other side, so that the limit rod 13 is convenient for installation by penetrating along the side wall, rather than directly setting the limit rod 13 on the side wall of the channel for installing the knob 12.

[0059] See also Figure 1 、 Figure 3 、 Figure 4 as well as Figure 8 The connecting pipe 20 of this embodiment is a stainless steel braided tube, one end of which is sleeved on the outer wall of the supporting sleeve 312, and the other end is mounted on the body 11. Specifically, the supporting sleeve 312 is provided with a first bamboo head 3121, and one end of the body 11 is provided with a second bamboo head 14. The two ends of the connecting pipe 20 are respectively sleeved on the first bamboo head 3121 and the second bamboo head 14. To ensure the installation stability of the connecting pipe 20, a sleeve 40 is further provided at each end of the connecting pipe 20. The sleeve 40 is sleeved on the outer wall of the connecting pipe 20. At the same time, the sleeve 40 is deformed during installation to further lock the connecting pipe 20 to the first bamboo head 3121 or the second bamboo head 14.

[0060] In another embodiment, the present invention further provides a gas appliance including the above-mentioned connecting valve device 100 .

[0061] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A connecting valve device (100), characterized in that: include: The valve body (10) is used for connecting to a gas cylinder to input gas; a communication pipe (20), one end of which is connected to the valve body (10); The adapter structure (30) is connected to the other end of the connecting pipe (20) to output the gas, and comprises an adapter (31) and a valve core assembly (32) arranged in the adapter (31). The adapter (31) is used to connect between the external structure and the connecting pipe (20). The valve core assembly (32) is installed in the adapter (31) and is used to cooperate with the ejector pin of the external structure to open or close the channel connecting the adapter (31) and the connecting pipe (20).

2. The connecting valve device (100) according to claim 1, characterized in that The valve core assembly (32) includes: a first mounting sleeve (321), the first mounting sleeve (321) being mounted in the adapter (31); a push rod (322), the push rod (322) being slidably disposed in the first mounting sleeve (321) and being used to cooperate with the ejector pin to open or close the passage opening (3213) between the first mounting sleeve (321) and the communicating pipe (20); An elastic member (323) is provided in the first mounting sleeve (321) and is sleeved outside the push rod (322), and is respectively abutted against the first mounting sleeve (321) and the push rod (322) to apply elastic force to the push rod (322).

3. The connecting valve device (100) according to claim 2, characterized in that The valve core assembly (32) further includes a sealing gasket (324), which is sleeved on the outside of the push rod (322) and is used to abut against the end of the first mounting sleeve (321) when the push rod (322) closes the channel opening (3213) to achieve sealing of the first mounting sleeve (321).

4. The connecting valve device (100) according to claim 2, characterized in that The first mounting sleeve (321) includes a first sub-sleeve (3211) and a second sub-sleeve (3212) that are independently arranged. One end of the first sub-sleeve (3211) is sleeved outside one end of the second sub-sleeve (3212). The first sub-sleeve (3211) and the second sub-sleeve (3212) are both connected to the adapter (31). The second sub-sleeve (3212) is provided with the passage opening (3213).

5. The connecting valve device (100) according to claim 3, characterized in that The valve core assembly (32) further includes a second mounting sleeve (325), which is arranged outside one end of the push rod (322) facing the communicating pipe (20) and is sleeved outside the sealing gasket (324).

6. The connecting valve device (100) according to any one of claims 1 to 5, characterized in that: The communicating pipe (20) is a stainless steel braided pipe.

7. The connecting valve device (100) according to any one of claims 1 to 5, characterized in that: The valve body (10) comprises: A body (11) is used to connect to a gas cylinder, and the body (11) is connected to one end of the communication pipe (20). The body (11) is provided with an air inlet (113) and a flow channel (111) communicating with the communication pipe (20), and the air inlet (113) can be connected to or disconnected from the flow channel (111); A knob (12) is movably mounted on the body (11) and is used to open or close the port (112) of the flow channel (111) connected to the air inlet (113).

8. The connecting valve device (100) according to claim 7, characterized in that The valve body (10) further includes a limiting rod (13), which is provided at one end of the body (11) connected to the knob (12) and is located in a channel of the body (11) for mounting the knob (12). A notch (124) is provided on the knob (12). The limiting rod (13) can move relative to the knob (12) in the notch (124) to limit the movement of the knob (12) in the opening direction or the closing direction with respect to the port (112).

9. The connecting valve device (100) according to claim 8, characterized in that The limiting rod (13) is provided through two opposite side walls of the body (11).

10. A gas appliance, characterized in that: The invention comprises a connecting valve device (100) according to any one of claims 1 to 9.

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