Gas water heater air inlet joint and gas water heater

Abstract

The utility model discloses a kind of gas water heater air inlet connector and gas water heater, including connector body, first check valve assembly and second check valve assembly, connector body is equipped with with gas water heater connection's air outlet pipe, with the first air inlet channel and second air inlet channel of air outlet pipe intercommunication;First check valve assembly is arranged in first air inlet channel;Second check valve assembly is arranged in second air inlet channel.When first connector air intake, air pressure promotes first valve core to open and compresses second sealing ring to close second air inlet channel;When second connector air intake, air pressure promotes second valve core to open and compresses first sealing ring to close first air inlet channel.Therefore, by setting double air inlet interface on the same connector body and cooperating check valve assembly, the direct compatibility of different specifications gas tank is realized, without adapter can switch to use, satisfy family and multiple scene needs such as outdoor, improve the multifunctionality and safety of water heater.

Description

Technical Field

[0001] This utility model relates to the field of gas water heaters, specifically to an inlet connector for a gas water heater and a gas water heater. Background Technology

[0002] Existing gas water heaters typically connect to a gas cylinder via a single type of inlet connector to achieve gas input and combustion. However, in practical applications, users may use gas cylinders of different specifications or with different interface types in different scenarios. For example, mountain gas cylinders are commonly used in outdoor camping or portable scenarios, while common gas cylinders are more often used in homes or fixed locations. Due to the inconsistent interface types of different gas cylinders, existing technologies generally require the installation of adapters or additional gas connection pipes to achieve compatibility. For instance, when a one-pound gas cylinder needs to be matched with a mountain gas cylinder interface, a corresponding adapter must be installed at the gas inlet of the water heater.

[0003] However, these existing solutions still have several shortcomings: First, gas water heaters are usually only equipped with a fixed type of gas inlet connector when they leave the factory, and users can only choose the type of gas tank according to the connector provided, which lacks flexibility; Second, when users need to change the usage scenario or adapt to different gas tanks, they often have to purchase adapters or connecting pipes, which not only increases the cost of use but also reduces convenience; Third, the installation process of additional connectors increases the number of connection points, which may lead to a decrease in sealing or leakage, thereby affecting the safety and reliability of the water heater. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides an inlet connector for a gas water heater and a gas water heater. By setting two inlet ports on the same connector body and arranging check valve components in their respective inlet channels, direct compatibility with gas tanks of different specifications is achieved. One inlet connector can simultaneously connect two different gas tanks. Users can flexibly switch between them without purchasing or replacing adapters, thereby meeting the usage needs of various scenarios such as home and outdoor use, and improving the multifunctionality and adaptability of gas water heaters.

[0005] The technical solution adopted by this utility model to solve its problem is: A gas inlet connector for a gas water heater, comprising: The connector body includes a gas outlet pipe connected to a gas water heater, a first connector and a second connector communicating with the gas outlet pipe, wherein the first connector is provided with a first air inlet channel and the second connector is provided with a second air inlet channel. The first check valve assembly is disposed in the first air intake channel and includes a first valve core, a first elastic element connected to one end of the first valve core, and a first sealing ring located at the other end of the first valve core. The second check valve assembly is disposed in the second air intake channel and includes a second valve core, a second elastic element connected to one end of the second valve core, and a second sealing ring located at the other end of the second valve core. When air enters the first connector, the air pressure drives the first valve core to overcome the elastic force of the first elastic element and open, while simultaneously pushing the second valve core to seal the second air intake channel with the second sealing ring. When air enters the second connector, the intake pressure drives the second valve core to overcome the elastic force of the second elastic element and open, while simultaneously pushing the first valve core to seal the first air intake channel closed by the first sealing ring.

[0006] Furthermore, the first valve core and the first air intake channel are in clearance fit, and the first valve core is provided with a first through hole that allows gas to pass through; the second valve core and the second air intake channel are in clearance fit, and the second valve core is provided with a second through hole that allows gas to pass through.

[0007] Furthermore, a first protrusion is provided in the first air intake channel away from the air outlet pipe, and a first vent hole is provided on the first protrusion. When the second connector is inlet, the inlet pressure drives the first valve core to move toward the first protrusion so that the first sealing ring abuts against the first protrusion to seal the first vent hole. The second air intake channel has a second protrusion away from the air outlet pipe. The second protrusion has a second vent hole. When the first connector is inlet, the inlet pressure drives the second valve core to move toward the second protrusion, so that the second sealing ring abuts against the second protrusion to seal the second vent hole.

[0008] Furthermore, a third protrusion is provided in the first air intake channel near the air outlet pipe. The third protrusion has a third vent hole that communicates with the first through hole. The first valve core has a first cavity that communicates with the first through hole. One end of the first elastic member is engaged in the first cavity, and the other end abuts against the third protrusion. The second air intake channel has a fourth protrusion near the air outlet pipe. The fourth protrusion has a fourth vent hole that communicates with the second through hole. The second valve core has a second cavity that communicates with the second through hole. One end of the second elastic member is engaged in the second cavity, and the other end abuts against the fourth protrusion.

[0009] Furthermore, the first connector is also provided with a threaded joint for threaded connection with a gas pipe having a threaded interface.

[0010] Furthermore, the second connector is also provided with a quick-connect fitting for quick connection with gas cylinders and / or gas tanks having a quick-connect structure.

[0011] Furthermore, the first connector and the second connector are arranged perpendicularly.

[0012] Furthermore, the first connector or the second connector is on the same plane as the air outlet pipe.

[0013] Furthermore, the outer wall of the gas outlet pipe is provided with an annular groove, and a third sealing ring is embedded in the annular groove to form a seal when the gas outlet pipe is connected to the gas inlet of the gas water heater.

[0014] A gas water heater, characterized in that it includes the aforementioned gas inlet connector for a gas water heater.

[0015] In summary, this utility model has the following technical effects: 1. This utility model relates to an inlet connector for gas water heaters and a gas water heater. By setting two inlet ports on the same connector body and arranging check valve components in their respective inlet channels, it achieves direct compatibility with gas tanks of different specifications. One inlet connector can simultaneously connect two different gas tanks. Users can flexibly switch between them without purchasing or replacing adapters, thereby meeting the usage needs of various scenarios such as home and outdoor use, and improving the multifunctionality and adaptability of gas water heaters.

[0016] 2. The present invention relates to an inlet connector for a gas water heater and a gas water heater. The inlet connector has a built-in check valve structure. When gas enters through one inlet channel, the other inlet channel will automatically close and form a seal under the action of gas pressure. This can prevent the risk of gas leakage caused by users forgetting to close the valve after changing different gas cylinders. Thus, while improving the convenience of operation, it also significantly improves the safety and reliability of use. Attached Figure Description

[0017] Figure 1 This is a cross-sectional schematic diagram of the gas inlet connector for the gas water heater of this utility model; Figure 2 This is a cross-sectional schematic diagram of the first connector in the gas inlet connector of the gas water heater of this utility model when air is being introduced; Figure 3 This is a cross-sectional schematic diagram of the second connector in the gas inlet connector of the gas water heater of this utility model when air is being introduced; Figure 4 This is a schematic diagram of the structure of the gas inlet connector for quick connection of the gas water heater to the gas tank according to this utility model; Figure 5 This is a schematic diagram of the structure of the gas inlet connector for the gas water heater of this utility model, which is used to connect the gas pipe. Figure 6 This is a schematic diagram of the structure of the gas inlet connector for the gas water heater of this utility model, which connects the atmospheric gas tank to the gas water heater via a gas pipe. Figure 7 This is a schematic diagram of the structure of the gas inlet connector for the gas water heater of this utility model, which connects the gas tank to the gas water heater via a quick connector.

[0018] The meanings of the reference numerals in the attached figures are as follows: 1. Connector body; 2. First connector; 21. First air inlet channel; 22. First protrusion; 221. First vent hole; 23. Third protrusion; 231. Third vent hole; 24. Quick connector; 3. Second connector; 31. Second air inlet channel; 32. Second protrusion; 321. Second vent hole; 33. Fourth protrusion; 331. Fourth vent hole; 34. Threaded connector; 4. First valve core; 41. First cavity; 42. First through hole; 43. First elastic element; 44. First sealing ring; 5. Second valve core; 51. Second cavity; 52. Second through hole; 53. Second elastic element; 54. Second sealing ring; 6. Gas outlet pipe; 61. Groove; 7. Gas cylinder; 71. Pressure reducing valve; 72. Connecting sleeve; 8. Large gas tank; 81. Connector; 82. Gas pipe; 83. Threaded interface; 9. Gas water heater. Detailed Implementation

[0019] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0020] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0022] like Figure 1-7As shown, this embodiment discloses an air inlet connector for a gas water heater, including a connector body 1, a first check valve assembly, and a second check valve assembly. The connector body 1 includes an air outlet pipe 6 connected to the gas water heater, and a first connector 2 and a second connector 3 communicating with the air outlet pipe 6; the first connector 2 is provided with a first air inlet channel 21, and the second connector 3 is provided with a second air inlet channel 31.

[0023] The first check valve assembly is disposed within the first air intake channel 21 and includes a first valve core 4, a first elastic element 43 connected to one end of the first valve core 4, and a first sealing ring 44 located at the other end of the first valve core 4. The second check valve assembly is disposed within the second air intake channel 31 and includes a second valve core 5, a second elastic element 53 connected to one end of the second valve core 5, and a second sealing ring 54 located at the other end of the second valve core 5. With the above structure, unidirectional flow and automatic reverse sealing can be achieved when gas is input from different connectors, thereby effectively preventing gas backflow and improving safety during use.

[0024] When air enters through the first connector 2, the intake pressure drives the first valve core 4 to open against the elastic force of the first elastic element 43, simultaneously pushing the second valve core 5 to seal the second intake passage 31 with the second sealing ring 54. When air enters through the second connector 3, the intake pressure drives the second valve core 5 to open against the elastic force of the second elastic element 53, simultaneously pushing the first valve core 4 to seal the first intake passage 21 with the first sealing ring 44. This bidirectional adaptive sealing control method not only ensures the uniformity of gas input but also simplifies the operation steps, eliminating the need for users to manually adjust when switching gas sources.

[0025] Furthermore, the first valve core 4 and the first air intake channel 21 are in a clearance fit, and the first valve core 4 is provided with a first through hole 42 that allows gas to pass through; the second valve core 5 and the second air intake channel 31 are also in a clearance fit, and the second valve core 5 is provided with a second through hole 52 that allows gas to pass through. Through this clearance fit and through hole design, the flow resistance can be reduced while ensuring the flexible movement of the valve core, thereby improving the gas transmission efficiency.

[0026] Furthermore, a first protrusion 22 is provided in the first air intake channel 21 at a location away from the air outlet pipe 6, and a first vent hole 221 is opened on the first protrusion 22. When air enters the second connector 3, the intake pressure drives the first valve core 4 to move towards the first protrusion 22, so that the first sealing ring 44 abuts against the first protrusion 22, thereby sealing the first vent hole 221. A second protrusion 32 is provided in the second air intake channel 31 at a location away from the air outlet pipe 6, and a second vent hole 321 is opened on the second protrusion 32. When air enters the first connector 2, the intake pressure drives the second valve core 5 to move towards the second protrusion 32, so that the second sealing ring 54 abuts against the second protrusion 32, thereby sealing the second vent hole 321. Through the above structural arrangement, the sealing action can be made more reliable, avoiding the risk of leakage caused by airflow turbulence.

[0027] Furthermore, a third protrusion 23 is provided in the first air intake channel 21 near the air outlet pipe 6, and a third vent hole 231 is opened on the third protrusion 23; the first valve core 4 is provided with a first cavity 41 connecting the first through hole 42 and the third vent hole 231, one end of the first elastic member 43 is engaged in the first cavity 41, and the other end abuts against the third protrusion 23. Correspondingly, a fourth protrusion 33 is provided in the second air intake channel 31 near the air outlet pipe 6, and a fourth vent hole 331 is opened on the fourth protrusion 33; the second valve core 5 is provided with a second cavity 51 connecting the second through hole 52 and the fourth vent hole 331, one end of the second elastic member 53 is engaged in the second cavity 51, and the other end abuts against the fourth protrusion 33. This protrusion and cavity matching design can achieve stable positioning of the elastic member and avoid displacement of the elastic member during long-term pressure or vibration, thereby ensuring the opening and closing sensitivity of the valve core.

[0028] See Figure 2 When the first connector 2 is inlet, the inlet pressure in the first inlet channel 21 drives the first valve core 4 to overcome the elastic force of the first elastic element 43 and open the first vent hole 221. The gas passes through the first vent hole 221, the gap between the first valve core 4 and the first inlet channel 21, the first through hole 42, the first concave cavity 41 and the third vent hole 231 in sequence, and pushes the second valve core 5 to make the second sealing ring 54 abut against the second protrusion 32, thereby sealing and closing the second inlet channel 31. At this time, the gas is stably introduced into the gas water heater 9 through the gas outlet pipe, ensuring the unidirectional and stable gas supply.

[0029] See Figure 3Similarly, when the second connector 3 is inlet, the inlet pressure in the second inlet channel 31 drives the second valve core 5 to overcome the elastic force of the second elastic element 53 and open the second vent 321. The gas passes through the second vent 321, the gap between the second valve core 5 and the second inlet channel 31, the second through hole 52, the second concave cavity 51 and the fourth vent 331 in sequence, and pushes the first valve core 4 to make the first sealing ring 44 abut against the first protrusion 22, thereby sealing and closing the first inlet channel 21. At this time, the gas can also enter the gas water heater 9 through the gas outlet pipe, thereby realizing the rapid switching of the gas source without affecting the continuity of gas supply.

[0030] Therefore, the air inlet connector has a built-in check valve structure. When one air inlet channel is supplied with gas, the other air inlet channel will automatically close and form a seal under the action of air pressure. No manual operation is required by the user. This can effectively avoid the risk of gas leakage caused by the user forgetting to close the valve after changing to a different gas cylinder. This not only improves the convenience of operation, but also enhances the safety and reliability of the overall use process through the automated sealing control method.

[0031] See Figure 4 and Figure 7 The first connector 2 is equipped with a quick-connect fitting 24 for rapid connection to a gas cylinder or tank 7 with a quick-connect structure. A pressure reducing valve 71 is connected to the gas cylinder or tank 7, and the inlet end of the pressure reducing valve 71 has a connecting sleeve 72 that matches the quick-connect fitting 24. This structural design allows for plug-and-play installation of the gas cylinder or tank 7, significantly improving the efficiency of connector installation and disassembly. It is particularly suitable for applications requiring frequent gas source changes, not only enhancing operational convenience but also reducing the risk of poor sealing due to repeated installation and disassembly, thereby further improving overall safety and reliability.

[0032] See Figure 5 and Figure 6 The second connector 3 is equipped with a threaded connector 34 for threaded connection with the gas pipe 82, which has a threaded interface 83, to achieve a reliable connection with the gas tank 8 or gas cylinder. The threaded engagement ensures a firm and stable connection, making it particularly suitable for long-term continuous use.

[0033] It should be noted that the threaded connector 34 is compatible with the threaded interface 83 at one end of the gas pipe 82 commonly found in household gas cylinders, while the other end of the gas pipe 82 is connected to the gas cylinder via a connector 81. Therefore, the gas inlet connector can be directly matched with commonly used household gas sources without the need for additional adapters. This design not only expands the applicability of the gas inlet connector but also improves the overall assembly's versatility and compatibility. Users can easily complete installation in different usage scenarios, effectively reducing operating costs and operational difficulty, while simultaneously enhancing the practicality and adaptability of the gas water heater 9.

[0034] Furthermore, the first connector 2 and the second connector 3 are arranged perpendicular to each other, or either the first connector 2 or the second connector 3 is located on the same plane as the gas outlet pipe 6, and the first connector 2 and the second connector 3 are arranged perpendicular to each other. This structural design makes the overall layout of the connector more compact, which is beneficial for reasonable arrangement in space-constrained installation environments and avoids mutual interference when connecting gas cylinders or gas cylinders 7 to different interfaces, thereby improving the connector's installation adaptability and ease of use.

[0035] Furthermore, the outer wall of the gas outlet pipe 6 is provided with an annular groove 61, and a third sealing ring (not shown in the figure) is embedded in the annular groove 61. When the gas outlet pipe 6 is connected to the gas inlet of the gas water heater 9, a reliable seal can be formed, thereby preventing gas leakage and improving the sealing performance and safety of the overall device.

[0036] In addition, this embodiment also provides a gas water heater 9, which includes the gas inlet connector described above. By integrating the gas inlet connector into the gas water heater 9, it is possible to directly adapt to gas tanks of different specifications, and it also avoids the cumbersome operation of users installing additional adapters, thereby significantly improving the applicability and ease of use of the gas water heater 9 in multiple scenarios.

[0037] In summary, this utility model of a gas water heater inlet connector and gas water heater achieves direct compatibility with different specifications of gas tanks by setting two inlet interfaces on the same connector body 1 and arranging check valve components in their respective inlet channels. One inlet connector can simultaneously connect two different types of gas tanks, and users can flexibly switch between them without purchasing or replacing adapters, thereby meeting the usage needs of various scenarios such as home and outdoor use, and improving the multifunctionality and adaptability of the gas water heater 9.

[0038] This utility model relates to an inlet connector for a gas water heater and a gas water heater. The inlet connector has a built-in check valve structure. When gas enters through one inlet channel, the other inlet channel will automatically close and form a seal under the action of gas pressure. This can prevent the risk of gas leakage caused by users forgetting to close the valve after changing different gas cylinders. Thus, while improving the convenience of operation, it also significantly improves the safety and reliability of use.

[0039] This utility model relates to an inlet connector for gas water heaters and a gas water heater, which breaks through the limitations of traditional single inlet interfaces and realizes the multi-functional expansion of dual-purpose connectors. It also replaces the traditional switch valve design with the automatic sealing function of a check valve, taking into account safety, flexibility and economy. It is a substantial improvement on the existing gas water heater inlet structure.

[0040] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0041] It should be understood that the terms "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] Furthermore, in the description of this utility model, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0043] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A gas inlet connector for a gas water heater, characterized in that, include: The connector body includes a gas outlet pipe connected to a gas water heater, a first connector and a second connector communicating with the gas outlet pipe, wherein the first connector is provided with a first air inlet channel and the second connector is provided with a second air inlet channel. The first check valve assembly is disposed in the first air intake channel and includes a first valve core, a first elastic element connected to one end of the first valve core, and a first sealing ring located at the other end of the first valve core. The second check valve assembly is disposed in the second air intake channel and includes a second valve core, a second elastic element connected to one end of the second valve core, and a second sealing ring located at the other end of the second valve core. When air enters the first connector, the air pressure drives the first valve core to overcome the elastic force of the first elastic element and open, while simultaneously pushing the second valve core to seal the second air intake channel with the second sealing ring. When air enters the second connector, the intake pressure drives the second valve core to overcome the elastic force of the second elastic element and open, while simultaneously pushing the first valve core to seal the first air intake channel closed by the first sealing ring.

2. The gas inlet connector for a gas water heater according to claim 1, characterized in that, The first valve core and the first air intake channel are in clearance fit, and the first valve core is provided with a first through hole that allows gas to pass through; the second valve core and the second air intake channel are in clearance fit, and the second valve core is provided with a second through hole that allows gas to pass through.

3. The gas inlet joint for a gas water heater according to claim 2, wherein The first air intake channel has a first protrusion away from the air outlet pipe. The first protrusion has a first vent hole. When the second connector is inlet, the inlet pressure drives the first valve core to move toward the first protrusion so that the first sealing ring abuts against the first protrusion to seal the first vent hole. The second air intake channel has a second protrusion away from the air outlet pipe. The second protrusion has a second vent hole. When the first connector is inlet, the inlet pressure drives the second valve core to move toward the second protrusion, so that the second sealing ring abuts against the second protrusion to seal the second vent hole.

4. The gas inlet joint for a gas water heater according to claim 3, characterized in that, The first air intake channel has a third protrusion near the air outlet pipe. The third protrusion has a third vent hole that communicates with the first through hole. The first valve core has a first cavity that communicates with the first through hole. One end of the first elastic member is engaged in the first cavity, and the other end abuts against the third protrusion. The second air intake channel has a fourth protrusion near the air outlet pipe. The fourth protrusion has a fourth vent hole that communicates with the second through hole. The second valve core has a second cavity that communicates with the second through hole. One end of the second elastic member is engaged in the second cavity, and the other end abuts against the fourth protrusion.

5. The gas inlet joint for a gas water heater according to claim 1, wherein The first connector is also provided with a threaded joint for threaded connection with a gas pipe having a threaded interface.

6. The gas inlet joint for a gas water heater according to claim 1, wherein The second connector is also equipped with a quick-connect fitting for quick connection with gas cylinders and / or gas tanks that have a quick-connect structure.

7. The gas inlet joint for a gas water heater according to claim 1, wherein The first connector and the second connector are arranged perpendicularly.

8. The gas inlet joint for a gas water heater according to claim 1, wherein The first connector or the second connector is on the same plane as the air outlet pipe.

9. The gas inlet connector for a gas water heater according to claim 1, characterized in that, The outer wall of the gas outlet pipe is provided with an annular groove, and a third sealing ring is embedded in the annular groove to form a seal when the gas outlet pipe is connected to the gas inlet of the gas water heater.

10. A gas water heater, characterized in that, The gas inlet connector for a gas water heater includes any one of claims 1-9.

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