An outdoor water heater

Abstract

The utility model discloses an outdoor water heater, including the body, water inlet joint, air inlet joint and water outlet joint, the body is equipped with the heat exchanger and combustor assembly of up and down arrangement, this water inlet joint is by the first input pipe and first output pipe of inside lead -through, and the first output pipe is connected with the water inlet end of heat exchanger, and the first input pipe is equipped with water inlet and is used for connecting the detachable first quick plug connector of water pump, this air inlet joint includes second input pipe and second output pipe, and the second output pipe is connected with combustor assembly, and the second input pipe is equipped with air inlet and is used for connecting the detachable second quick plug connector of gas jar, this water outlet joint includes third input pipe and third output pipe, and the third input pipe is connected with the water outlet end of heat exchanger, and the third output pipe is equipped with third quick plug connector and water outlet, is used for connecting the shower. The utility model discloses outdoor water heater, has solved the poor adaptability, the installation and removal of water heater in gas circuit, water circuit connection aspect are complicated and the problem such as layout space is limited.

Description

Technical Field

[0001] This utility model relates to the technical field of outdoor gas combustion appliances, specifically to an outdoor water heater. Background Technology

[0002] Existing portable water heaters generally suffer from poor compatibility, cumbersome installation, and large space occupation in terms of gas and water line connections. Current devices typically only support single-size gas cylinders, such as household liquefied petroleum gas (LPG) cylinders, and the connections mostly use threaded or fixed interfaces, requiring tools for disassembly and assembly. This makes them incompatible with various gas sources, such as small portable gas cylinders (e.g., high-altitude gas cylinders, 1-pound propane cylinders), resulting in poor flexibility. Regarding the water lines, the inlet is mostly a fixed interface, only suitable for municipal water pipes, making it difficult to connect to other water sources such as water pumps; the connection between the outlet and the shower head is also mostly threaded, cumbersome to disassemble and assemble.

[0003] Furthermore, the connection interfaces of traditional equipment are often vertically mounted on the body, which can be limited by wall or floor space during installation. The interfaces are also often concealed, making them difficult for users to observe and operate, thus affecting ease of use. Threaded connections require tools, making them inconvenient to carry outdoors, and frequent disassembly and assembly can cause thread wear, reducing sealing performance. The overall structure has low space utilization, especially in confined spaces (such as tents or vehicle interiors), making compact installation difficult and impacting the equipment's adaptability and practicality. Utility Model Content

[0004] In order to overcome the defects of the prior art, the present invention provides an outdoor water heater that solves the problems of poor compatibility, complicated installation and disassembly, and limited layout space in terms of gas and water circuit connections.

[0005] The technical solution adopted by this utility model to solve its problem is:

[0006] An outdoor water heater, comprising:

[0007] The engine body is equipped with heat exchangers and burner assemblies arranged vertically.

[0008] The water inlet connector includes a first input pipe and a first output pipe that are interconnected and internally connected. The first output pipe is connected to the water inlet of the heat exchanger. The first input pipe is provided with a water inlet and a first quick-connect connector that is detachable and used to connect to a water pump.

[0009] An air inlet connector includes a second input pipe and a second output pipe that are interconnected and internally connected. The second output pipe is connected to the burner assembly. The second input pipe is provided with an air inlet and a second quick-connect connector that is detachable and used for connection with a gas cylinder.

[0010] The water outlet connector includes a third input pipe and a third output pipe that are interconnected and internally connected. The third input pipe is connected to the water outlet of the heat exchanger. The third output pipe is provided with a third quick-connect connector for connecting to a shower head. The third quick-connect connector is provided with a water outlet.

[0011] The first input tube, the second input tube, and the third output tube are arranged horizontally, while the first output tube, the second output tube, and the third input tube are arranged vertically.

[0012] Furthermore, the first quick-connect fitting is provided with a first internal thread, and the first input pipe is provided with a first external thread for connection with the first internal thread or the external water inlet pipe thread.

[0013] The second quick-connector is provided with a second internal thread, and the second input pipe is provided with a second external thread for connection with the second internal thread or the external air intake pipe thread.

[0014] Furthermore, the water pump is provided with a first connecting sleeve that is inserted into the first quick-connect connector; the gas tank is connected to the second quick-connect connector through a pressure reducing valve, and the pressure reducing valve is provided with a second connecting sleeve that is inserted into the second quick-connect connector; the shower head is provided with a third connecting sleeve that is connected to the third quick-connect connector.

[0015] The first quick connector and the first connecting sleeve, and the third quick connector and the third connecting sleeve, all adopt a self-locking quick connector structure.

[0016] Furthermore, the first output tube and the first input tube, the second output tube and the second input tube, and the third input tube and the third output tube all have an L-shaped structure.

[0017] Furthermore, it also includes a thermostatic proportional valve, wherein the second output pipe is connected to the air inlet of the thermostatic proportional valve, and the air outlet of the thermostatic proportional valve is connected to the burner assembly.

[0018] Furthermore, the heat exchanger has a cold water inlet pipe at its inlet end and a hot water outlet pipe at its outlet end. The cold water inlet pipe is connected to the first output pipe, and the hot water outlet pipe is connected to the third input pipe.

[0019] Furthermore, it also includes a water flow sensor, the inlet of which is connected to the first output pipe, and the outlet of which is connected to the cold water inlet pipe.

[0020] Furthermore, the first output pipe is provided with a locking block, the locking block is fitted with a sealing ring, and the water flow sensor is provided with a slot;

[0021] The card block engages with the card slot, and the card block and the card slot press against the sealing ring to achieve a seal.

[0022] Furthermore, the first input pipe is also equipped with a filter screen for filtering foreign objects.

[0023] Furthermore, the machine body is also equipped with a controller and a user interaction panel electrically connected to the controller.

[0024] In summary, this utility model has the following technical effects:

[0025] 1. This utility model of outdoor water heater can quickly adapt to various types of gas tanks (such as high-altitude gas tanks, 1-pound propane gas tanks) and water sources (such as water pumps, municipal water pipes), improving the flexibility and versatility of the equipment. The application of quick-connect couplings eliminates the tool installation steps required for threaded interfaces, making it easy for users to quickly assemble and disassemble in outdoor environments, effectively solving the problem of cumbersome operation of traditional threaded connection structures.

[0026] 2. In this utility model of outdoor water heater, the first input pipe, the second input pipe and the third output pipe are arranged in a horizontal direction, and the first output pipe, the second output pipe and the third input pipe are arranged in a vertical direction, forming a compact "L" shaped structure layout, which optimizes the interface distribution and improves the installation flexibility and operation convenience.

[0027] 3. The outdoor water heater of this utility model adopts a vertical and horizontal staggered layout for each interface, which avoids the spatial interference problem of traditional vertical interfaces when installed close to the wall or ground. At the same time, it is convenient for users to see and operate intuitively, improving the ease of use. The overall structure is compact and reasonable, which enhances the convenience, flexibility and environmental adaptability of the equipment in outdoor use scenarios, and has good practical value and promotion prospects. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the outdoor water heater of this utility model;

[0029] Figure 2 This is a schematic diagram of the internal structure of the outdoor water heater of this utility model;

[0030] Figure 3 This is a schematic diagram of the air inlet structure in the outdoor water heater of this utility model;

[0031] Figure 4 This is a schematic diagram of the water inlet connector in the outdoor water heater of this utility model;

[0032] Figure 5 This is a schematic diagram of the air inlet connector in the outdoor water heater of this utility model;

[0033] Figure 6 This is a schematic diagram of the water outlet connector in the outdoor water heater of this utility model;

[0034] Figure 7 This is a schematic diagram of the structure adapted for use with the outdoor water heater of this utility model.

[0035] The meanings of the reference numerals in the attached figures are as follows:

[0036] 1. Body; 11. Heat exchanger; 111. Cold water inlet pipe; 112. Hot water outlet pipe; 1121. Outlet end; 1122. Fifth connecting plate; 1123. Second mounting hole; 12. Burner assembly; 13. Controller; 131. Power input end; 132. Power output end; 14. User interaction panel; 15. Handle; 2. Water flow sensor; 21. Slot; 3. Thermostatic proportional valve; 31. Air inlet end; 311. Fourth connecting plate; 312. First mounting hole; 4. Water inlet connector; 41. First input pipe; 411. First external thread; 4111. Water inlet; 412. Filter screen; 42. First output pipe; 421. Locking block; 422. First groove; 423. First connecting plate; 424. First passage. 425. Sealing ring; 5. Air inlet connector; 51. Second input pipe; 511. Second external thread; 5111. Air inlet; 52. Second output pipe; 521. First insert; 522. Second groove; 523. Second connecting plate; 524. Second through hole; 6. Water outlet connector; 61. Third input pipe; 611. Second insert; 612. Third groove; 613. Third connecting plate; 614. Third through hole; 62. Third output pipe; 621. Third quick connector; 6211. Water outlet; 7. Shower head; 71. Third connecting sleeve; 8. Air tank; 81. Pressure reducing valve; 82. Second connecting sleeve; 83. Second quick connector; 9. Water pump; 91. First connecting sleeve; 92. First quick connector; 93. Power connector. Detailed Implementation

[0037] 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.

[0038] 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.

[0039] 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.

[0040] like Figure 1-7 An outdoor water heater is shown, comprising a body 1, a water inlet connector 4, an air inlet connector 5, and a water outlet connector 6. The body 1 is equipped with a heat exchanger 11 arranged vertically and a burner assembly 12. The water inlet connector 4 includes a first input pipe 41 and a first output pipe 42 that are interconnected and internally connected. The first output pipe 42 is connected to the water inlet of the heat exchanger 11. The first input pipe 41 is provided with a water inlet 4111 and a detachable first quick-connect connector 92 for connection with a water pump 9. The air inlet connector 5 includes a second input pipe 51 and a second output pipe 52 that are interconnected and internally connected. The second output pipe 52 is connected to the burner assembly 12. The second input pipe 51 is provided with an air inlet 5111 and a second quick connector 83 that is detachable and used to connect with the air tank 8; the water outlet connector 6 includes a third input pipe 61 and a third output pipe 62 that are interconnected and internally connected. The third input pipe 61 is connected to the water outlet of the heat exchanger 11. The third output pipe 62 is provided with a third quick connector 621 for connecting with the shower head 7. The third quick connector 621 is provided with a water outlet 6211; wherein, the first input pipe 41, the second input pipe 51 and the third output pipe 62 are arranged in a horizontal direction, and the first output pipe 42, the second output pipe 52 and the third input pipe 61 are arranged in a vertical direction.

[0041] See Figure 4-6 The first output pipe 42 and the first input pipe 41, the second output pipe 52 and the second input pipe 51, and the third input pipe 61 and the third output pipe 62 are all arranged in an L-shape, which expands the positions of the water inlet 4111, the air inlet 5111, and the water outlet 6211, shortening the distance from the wall from the traditional 15cm to 5cm, saving installation space and making it convenient for use in confined environments (such as vehicles and tents); and the water inlet 4111, the air inlet 5111, and the water outlet 6211 are all exposed, so users can see the connection status directly, reducing the risk of misoperation; at the same time, the L-shaped layout, combined with the horizontal and vertical staggered pipe design, avoids the spatial interference problem of traditional vertical outlets in installation scenarios close to the wall or the ground, making it easier for users to see and operate, and improving the convenience of use.

[0042] Furthermore, the first input pipe 41 is provided with a first external thread 411 for connecting with the first quick connector 92 or an external water inlet pipe; the second input pipe 51 is provided with a second external thread 511 for connecting with the second quick connector 83 or an external air inlet pipe; through the compatible design of the threaded interface and quick connector, it supports both quick disassembly and assembly and can adapt to the needs of fixed pipe connection.

[0043] Furthermore, the water pump 9 is provided with a first connecting sleeve 91 that is inserted into the first quick connector 92; the gas tank 8 is connected to the second quick connector 83 through the pressure reducing valve 81, and the pressure reducing valve 81 is provided with a second connecting sleeve 82 that is inserted into the second quick connector 83; the shower head 7 or the hose is provided with a third connecting sleeve 71 that is connected to the third quick connector 621; the first quick connector 92 and the first connecting sleeve 91, and the third quick connector 621 and the third connecting sleeve 71 all adopt a self-locking quick connector structure, which can realize quick assembly of "one push and connect".

[0044] In this embodiment, the first quick-connect coupling 92 is provided with a first internal thread that mates with the first external thread 411, and both the first external thread 411 and the first internal thread are G1 / 2 threads. When using the water pump 9, the first quick-connect coupling 92 can be installed by threading it to the first input pipe 41. The water pump 9 is connected to the first quick-connect coupling 92 through the first connecting sleeve 91. The first quick-connect coupling 92 and the first connecting sleeve 91 adopt a "self-locking quick-connect coupling" (C-type structure). The inner side of the first connecting sleeve 91 is provided with a mating thread for the first quick-connect coupling 92. The first slot is equipped with an elastic hook on its inner wall. When inserted, the first quick-connect connector 92 squeezes the elastic hook to deform. After it is in place, the elastic hook springs back and locks in place, achieving plug-and-play functionality. The power connector 93 of the water pump 9 can be directly connected to the power output terminal 132 on the body 1 or to a vehicle power supply, etc. When using municipal water pipes, the municipal water pipes can be directly threaded to the first input pipe 41 to achieve water supply. Through the dual-mode interface design of threaded and quick-connect, it not only meets the stable connection requirements of fixed scenarios, but also supports quick installation and disassembly outdoors.

[0045] It should be noted that a hose can also be used for water outlet. The hose can be fitted with the same third connecting sleeve 71 as the shower head 7 and plugged into the third quick-connect fitting 621, facilitating the use of hot water through a water heater. Similarly, the inner side of the third connecting sleeve 71 has a third slot that matches the third quick-connect fitting 621; combined with the self-locking structure, this allows for quick assembly of the shower head 7 or the hose, further simplifying the user's operation.

[0046] See Figure 2-3It also includes a thermostatic proportional valve 3, with the second output pipe 52 connected to the air inlet 31 of the thermostatic proportional valve 3 and the air outlet of the thermostatic proportional valve 3 connected to the burner assembly 12, thereby realizing dynamic adjustment of gas flow and improving the stability and thermal efficiency of water temperature control. By monitoring the difference between the inlet water temperature and the set temperature in real time, the thermostatic proportional valve 3 can quickly adjust the gas supply, significantly improving the user experience.

[0047] In this embodiment, the second quick-connect connector 83 has a second internal thread that mates with the second external thread 511 on the second input pipe 51. It can be connected to the second input pipe 51 via a threaded connection, enabling rapid switching between multiple gas source modes. When using the portable gas canister 8, the second quick-connect connector 83 can be threadedly connected to the second input pipe 51. The pressure reducing valve 81 on the gas canister 8 has a second connecting sleeve 82, which has a second slot and can be quickly inserted into the second quick-connect connector 83, thereby completing the gas supply connection between the gas canister 8 and the water heater.

[0048] When using a household gas cylinder, the second external thread 511 is compatible with the UNF5 / 8 internal thread standard of CSA-certified low-pressure hoses, allowing for direct thread connection without adapters. This enables quick connection to traditional household gas pipelines, enhancing the versatility of the interface and installation efficiency.

[0049] To enhance compatibility with multiple gas sources, this utility model adopts a detachable gas interface module, integrating three commonly used gas source interfaces: a UNF5 / 8 threaded interface suitable for household gas cylinders, a snap-fit ​​interface for 1-pound propane cylinders via a second quick-connect connector 83, and a high-altitude gas cylinder plug-in interface. It is compatible with large / small gas cylinders / municipal gas, expanding the application scenarios. Moreover, the three interface modules can be quickly replaced without tools, allowing users to select the corresponding gas source according to the actual scenario, thus improving the flexibility of equipment use.

[0050] When matching the small portable gas canister 8, the second connecting sleeve 82 of the pressure reducing valve 81 and the second quick-connect fitting 83 adopt a "plug-slot + locking" structure design. The second quick-connect fitting 83 has a cylindrical plug with an annular protrusion on its outer wall. The second connecting sleeve 82 has a matching second slot with a spiral groove on its inner wall. When inserted, the protrusion on the plug slides along the spiral groove and achieves mechanical locking, ensuring a secure connection and preventing loosening during outdoor shaking or bumping, thus improving safety.

[0051] One end of the air inlet connector 5 is connected to the gas inlet end 31 of the thermostatic proportional valve 3, and the other end is connected to the detachable gas interface module, forming an L-shaped gas passage. The gas passage forms a 90° bend, so that the interface faces the outside of the equipment, making it easy for users to observe, connect, and maintain, thus improving the problems of traditional interfaces being hidden and inconvenient to operate. It also achieves multi-source water / gas adaptation, making the water inlet compatible with municipal water / water pumps, and the air inlet compatible with large / small gas tanks / municipal gas, expanding the application scenarios: when camping in the wild, it can be connected to a water pump to obtain water and a small gas tank; at home, it can be connected to municipal water / gas tanks, realizing "one machine for multiple uses".

[0052] Furthermore, the heat exchanger 11 has a cold water inlet pipe 111 at its inlet end and a hot water outlet pipe 112 at its outlet end. The cold water inlet pipe 111 is connected to the first output pipe 42, and the hot water outlet pipe 112 is connected to the third input pipe 61.

[0053] To monitor the water inlet status, a water flow sensor 2 is also provided. The inlet end of the water flow sensor 2 is connected to the first output pipe 42, and the outlet end of the water flow sensor 2 is connected to the cold water inlet pipe 111. A locking block 421 is provided on the first output pipe 42, and the locking block 421 has a first groove 422. A fluororubber sealing ring 425 with a temperature resistance of -40℃ to 200℃ is fitted on the first groove 422 and cooperates with the locking groove 21 on the water flow sensor 2. The locking block 421 is inserted into the locking groove 21 and presses the sealing ring 425 to achieve a reliable seal and prevent leakage. This design can monitor the water inlet flow in real time to ensure that the burner assembly 12 matches the water inlet flow and avoid the risk of dry burning. At the same time, the high temperature resistance of the fluororubber sealing ring 425 ensures the reliability of the water heater in extreme environments.

[0054] See also Figure 4-6 In this embodiment, in order to achieve reliable fixing and sealing connection of each connector assembly, the water inlet connector 4, the air inlet connector 5 and the water outlet connector 6 are respectively installed on the body 1 and related functional components by means of snap-fit ​​and screw connection.

[0055] Specifically, the first output pipe 42 is provided with a first connecting plate 423, and the first connecting plate 423 has a first through hole 424, on which a screw hole can be provided at a corresponding position on the body 1. By passing a fastener through the first through hole 424 and tightening it into the screw hole, the water inlet connector 4 can be securely installed to the body 1, and at the same time, it can be connected to the water flow sensor 2. This structure is easy to disassemble and assemble, and the installation process is accurate, which improves the stability of the water system connection and the convenience of maintenance.

[0056] The thermostatic proportional valve 3 has a first insertion hole on its air inlet end 31, and a first insertion block 521 on its second output pipe 52 for insertion and mating. The first insertion block 521 has a second groove 522 on its outer periphery for installing a sealing ring 425 to ensure interface sealing. Simultaneously, the second output pipe 52 has a second connecting plate 523 with a second through hole 524; the thermostatic proportional valve 3 has a fourth connecting plate 311 on its air inlet end 31, with a first mounting hole 312 corresponding to the second through hole 524. This first mounting hole 312 can be a threaded hole or a through hole. By passing a fastener through the second through hole 524 and screwing it into the first mounting hole 312 or by using a nut to tighten it, a reliable connection between the air inlet connector 5 and the thermostatic proportional valve 3 can be achieved, ensuring airtightness while providing good vibration resistance, making it suitable for outdoor mobile applications.

[0057] Similarly, the outlet end 1121 of the hot water outlet pipe 112 is provided with a second insertion hole, and the third input pipe 61 is provided with an insertable second insertion block 611. The second insertion block 611 is provided with a third groove 612 for installing a sealing ring 425 to ensure the sealing effect at the interface. The third input pipe 61 is also provided with a third connecting plate 613, which is provided with a third through hole 614; the outlet end 1121 is provided with a fifth connecting plate 1122, which is provided with a second mounting hole 1123 (screw hole or through hole). By fastening fasteners passing through the third through hole 614 and screwing them into the second mounting hole 1123 or fixing them with nuts, a stable connection between the water outlet connector 6 and the hot water outlet end 1121 is achieved. The insertion limiting fit and screw connection auxiliary fixation improve the installation stability and meet the requirements of interface sealing.

[0058] In addition, a filter screen 412 is provided inside the first input pipe 41 to block foreign objects and protect the internal components of the water system from contamination. The main body 1 is also provided with a power input terminal 131 and / or a power output terminal 132, as well as a controller 13 and a user interaction panel 14 electrically connected thereto, for realizing various function control and operation feedback.

[0059] In this embodiment, the body 1 is also provided with a handle 15 for easy carrying and moving of the device by the user. The handle 15 is located on the top or side of the body, has a sturdy structure and is comfortable to hold, which not only improves the portability of the whole device, but is also particularly suitable for temporary deployment and flexible use in mobile scenarios such as outdoor camping and vehicle travel. It also helps to achieve safe and convenient operation during storage, installation or maintenance.

[0060] In summary, this utility model of outdoor water heater can quickly adapt to various types of gas tanks 8 (such as high-altitude gas tanks, 1-pound propane gas tanks) and water sources (such as water pumps 9, municipal water pipes), improving the flexibility and versatility of the equipment. The application of quick-connect couplings eliminates the tool installation steps required for threaded interfaces, making it convenient for users to quickly assemble and disassemble in outdoor environments, effectively solving the problem of cumbersome operation of traditional threaded connection structures.

[0061] The outdoor water heater of this utility model has a first input pipe 41, a second input pipe 51 and a third output pipe 62 arranged in a horizontal direction, and a first output pipe 42, a second output pipe 52 and a third input pipe 61 arranged in a vertical direction, forming a compact "L" shaped structure layout, which optimizes the interface distribution and improves the installation flexibility and operation convenience.

[0062] This utility model of outdoor water heater features a staggered layout of horizontal and vertical interfaces, avoiding the spatial interference problem of traditional vertical interfaces when installed near walls or the ground. It also facilitates intuitive viewing and operation for users, improving ease of use. The overall structure is compact and reasonable, enhancing the convenience, flexibility, and environmental adaptability of the equipment in outdoor use scenarios, and has good practical value and promotion prospects.

[0063] 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.

[0064] 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.

[0065] Furthermore, in the description of this utility model, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0066] 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. An outdoor water heater, characterized in that, include: The engine body is equipped with heat exchangers and burner assemblies arranged vertically. The water inlet connector includes a first input pipe and a first output pipe that are interconnected and internally connected. The first output pipe is connected to the water inlet of the heat exchanger. The first input pipe is provided with a water inlet and a first quick-connect connector that is detachable and used to connect to a water pump. An air inlet connector includes a second input pipe and a second output pipe that are interconnected and internally connected. The second output pipe is connected to the burner assembly. The second input pipe is provided with an air inlet and a second quick-connect connector that is detachable and used for connection with a gas cylinder. The water outlet connector includes a third input pipe and a third output pipe that are interconnected and internally connected. The third input pipe is connected to the water outlet of the heat exchanger. The third output pipe is provided with a third quick-connect connector for connecting to a shower head. The third quick-connect connector is provided with a water outlet. The first input tube, the second input tube, and the third output tube are arranged horizontally, while the first output tube, the second output tube, and the third input tube are arranged vertically.

2. The outdoor water heater according to claim 1, characterized in that, The first quick-connect fitting is provided with a first internal thread, and the first input pipe is provided with a first external thread for connection with the first internal thread or the external water inlet pipe thread. The second quick-connector is provided with a second internal thread, and the second input pipe is provided with a second external thread for connection with the second internal thread or the external air intake pipe thread.

3. The outdoor water heater according to claim 1, characterized in that, The water pump is provided with a first connecting sleeve that is inserted into the first quick-connect fitting; the gas tank is connected to the second quick-connect fitting through a pressure reducing valve, and the pressure reducing valve is provided with a second connecting sleeve that is inserted into the second quick-connect fitting; the shower head is provided with a third connecting sleeve that is connected to the third quick-connect fitting. The first quick connector and the first connecting sleeve, and the third quick connector and the third connecting sleeve, all adopt a self-locking quick connector structure.

4. The outdoor water heater according to claim 1, characterized in that, The first output tube and the first input tube, the second output tube and the second input tube, and the third input tube and the third output tube are all L-shaped.

5. The outdoor water heater according to claim 1, characterized in that, It also includes a thermostatic proportional valve, the second output pipe is connected to the air inlet of the thermostatic proportional valve, and the air outlet of the thermostatic proportional valve is connected to the burner assembly.

6. The outdoor water heater according to claim 5, characterized in that, The heat exchanger has a cold water inlet pipe at its inlet end and a hot water outlet pipe at its outlet end. The cold water inlet pipe is connected to the first output pipe, and the hot water outlet pipe is connected to the third input pipe.

7. The outdoor water heater according to claim 6, characterized in that, It also includes a water flow sensor, the inlet of which is connected to the first output pipe and the outlet of which is connected to the cold water inlet pipe.

8. The outdoor water heater according to claim 7, characterized in that, The first output tube is provided with a locking block, the locking block is fitted with a sealing ring, and the water flow sensor is provided with a slot; The card block engages with the card slot, and the card block and the card slot press against the sealing ring to achieve a seal.

9. The outdoor water heater according to claim 1, characterized in that, The first input tube is also equipped with a filter screen for filtering foreign objects.

10. The outdoor water heater according to claim 1, characterized in that, The machine body is also equipped with a controller and a user interaction panel electrically connected to the controller.

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