Outdoor gas water heater fume cover and outdoor gas water heater

Abstract

The application relates to an outdoor gas water heater smoke hood and an outdoor gas water heater, wherein the outdoor gas water heater smoke hood comprises a smoke hood body, a smoke hood cavity is formed in the smoke hood body and is communicated with an exhaust pipe of the outdoor gas water heater, a circumferential side wall of the smoke hood cavity is provided with a plurality of smoke exhaust holes; a baffle is arranged below the smoke hood body and abuts against an end surface of an open end of the smoke hood body; a guide inclined surface is arranged on a side surface of the baffle facing the smoke hood cavity; at least one water drainage gap is arranged on the smoke hood body close to the open end, and the guide inclined surface extends obliquely towards the water drainage gap. The application aims to solve the technical problem that rainwater accumulates in the smoke hood, causing corrosion of the smoke hood.

Description

Technical Field

[0001] This application relates to the field of fume hood technology, and in particular to an outdoor gas water heater fume hood and an outdoor gas water heater. Background Technology

[0002] Existing outdoor gas water heaters typically have a fume hood installed at the exhaust pipe outlet. Its main function is to prevent backflow of exhaust gas caused by external wind and ensure that combustion exhaust gas is discharged smoothly. Specifically, the exhaust gas generated during the operation of the water heater enters the fume hood cavity through the exhaust pipe, and then diffuses into the atmosphere through the ventilation holes on the side wall or top of the fume hood.

[0003] However, current fume hood designs have the following problems: their ventilation holes easily become channels for rainwater intrusion during rainy weather. Due to the lack of an effective drainage structure, rainwater entering the fume hood cannot be discharged quickly, and long-term accumulation will corrode the inner wall of the fume hood, shortening its service life. Utility Model Content

[0004] This application provides an outdoor gas water heater hood and an outdoor gas water heater, wherein the outdoor gas water heater hood can solve the technical problem in the prior art of rainwater accumulating inside the hood, causing corrosion of the hood.

[0005] In a first aspect, this application provides an outdoor gas water heater fume hood, including a fume hood body, forming a fume hood cavity that communicates with the exhaust pipe of the outdoor gas water heater, and the circumferential sidewall of the fume hood cavity is provided with a plurality of exhaust holes.

[0006] A baffle is disposed below the smoke hood body and abuts against the end face of the opening end of the smoke hood body;

[0007] The baffle has a guide slope on the side surface facing the smoke hood cavity;

[0008] The smoke hood body has at least one drainage gap near the opening end, and the guide slope extends obliquely toward the drainage gap.

[0009] In one possible implementation, the opening extends radially outward to form a first extension, and the circumferential edge of the baffle extends radially outward to form a second extension, with the first extension and the second extension abutting against each other.

[0010] In one possible implementation, one end of the guide ramp is connected to the second extension, and the other end is connected to the surface.

[0011] In one possible implementation, the drainage gap is located in the first extension.

[0012] In one possible implementation, the top wall of the fume hood cavity is provided with a flow guiding structure, and the longitudinal section of the flow guiding structure is formed into a shape that is narrow at the top and wide at the bottom.

[0013] In one possible implementation, the smoke exhaust port includes an oblong hole and a round hole, wherein the oblong hole is inclinedly disposed on the side wall of the smoke hood cavity.

[0014] Secondly, this application provides an outdoor gas water heater, including a housing and an outdoor gas water heater hood as described above, wherein the outdoor gas water heater hood is installed on the upper outer side of the housing and such that the baffle abuts against the housing.

[0015] In one possible implementation, a seal is provided between the baffle and the housing.

[0016] In one possible implementation, a smoke exhaust pipe is also included, wherein the baffle has an axially penetrating smoke exhaust port, and the smoke exhaust pipe passes through the smoke exhaust port to communicate with the smoke hood cavity.

[0017] In one possible implementation, the exhaust pipe has a predetermined distance from the top surface of the smoke hood cavity.

[0018] The technical solutions provided in this application have the following advantages compared with the prior art:

[0019] The outdoor gas water heater hood provided in this embodiment allows exhaust gas to enter the hood cavity through the exhaust pipe during operation. Because the hood cavity has several exhaust holes on its circumferential sidewalls, the exhaust gas diffuses into the atmosphere through these holes, achieving normal exhaust while preventing backflow of exhaust gas due to external wind.

[0020] On rainy days, rainwater may enter the fume hood cavity through the smoke exhaust holes. At this time, the baffle located below the fume hood body and abutting against the end face of the opening of the fume hood body comes into play. The guide slope of the baffle facing the side surface of the fume hood cavity directs the rainwater entering the fume hood to the drainage opening located near the opening of the fume hood body, and the rainwater is discharged from the fume hood through the drainage opening.

[0021] This application can effectively drain rainwater that enters the fume hood, preventing rainwater accumulation from corroding the inner wall of the fume hood and extending the service life of the fume hood. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0025] Figure 1 A perspective view of an outdoor gas water heater hood provided in an embodiment of this application.

[0026] Figure 2 This is a cross-sectional structural diagram of an outdoor gas water heater hood provided in an embodiment of this application.

[0027] Figure 3 An exploded view of the outdoor gas water heater hood provided in an embodiment of this application.

[0028] Figure 4 This is a perspective view of an outdoor gas water heater provided in an embodiment of this application.

[0029] Figure 5 An exploded view of an outdoor gas water heater provided in an embodiment of this application.

[0030] Figure 6 This is a cross-sectional schematic diagram of an outdoor gas water heater provided in an embodiment of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Fume hood body; 101. Fume hood cavity; 102. Smoke exhaust hole; 1021. Waist-shaped hole; 1022. Round hole; 103. Drainage notch; 104. First extension; 105. Guide structure;

[0033] 2. Baffle; 201. Guide ramp; 202. Second extension section; 203. Smoke exhaust port;

[0034] 3. Sealing components;

[0035] 100. Outdoor gas water heater fume hood;

[0036] 300. Outdoor gas water heater; 301. Shell; 302. Exhaust pipe. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0039] For ease of description, spatial relative terms may be used in this text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the outdoor gas water heater hood during use or operation, in addition to the orientations depicted in the figure. For example, if the outdoor gas water heater hood in the figure undergoes a positional flip, orientation change, or movement change, then these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The outdoor gas water heater hood may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in this text will be interpreted accordingly.

[0040] To address the technical problem of rainwater accumulating inside the fume hood and causing corrosion in existing technologies, this application provides an outdoor gas water heater fume hood that can effectively drain rainwater entering the fume hood, prevent rainwater accumulation from corroding the inner wall of the fume hood, and extend the service life of the fume hood.

[0041] Firstly, please refer to Figures 1 to 3 , Figures 1 to 3 An outdoor gas water heater fume hood 100 provided in this application embodiment includes a fume hood body 1, forming a fume hood cavity 101 that communicates with the exhaust pipe 302 of the outdoor gas water heater, and a plurality of exhaust holes 102 are provided on the circumferential sidewall of the fume hood cavity 101.

[0042] Baffle 2 is located below the smoke hood body 1 and abuts against the end face of the opening end of the smoke hood body 1.

[0043] The side surface of the baffle 2 facing the smoke hood cavity 101 is provided with a guide slope 201;

[0044] The fume hood body 1 has at least one drainage notch 103 near the opening end, and the guide slope 201 extends inclined toward the drainage notch 103.

[0045] In the above technical solution, when the outdoor gas water heater is running, the exhaust gas generated by combustion enters the fume hood cavity 101 through the exhaust pipe 302. The circumferential sidewall of the fume hood cavity 101 is provided with several exhaust holes 102, through which the exhaust gas diffuses into the atmosphere, thereby achieving normal exhaust function. At the same time, the fume hood can also effectively block external wind force to prevent exhaust gas from flowing back into the water heater, ensuring the normal operation of the water heater.

[0046] On rainy days, rainwater may enter the fume hood cavity 101 through the smoke exhaust hole 102. At this time, the baffle 2, which is located below the fume hood body 1 and abuts against the end face of the opening of the fume hood body 1, comes into play. The surface of the baffle 2 facing the fume hood cavity 101 is provided with a guide slope 201. The rainwater entering the fume hood cavity 101 will fall on the baffle 2. Under the action of gravity, the rainwater will flow along the guide slope 201 towards the drainage gap 103 provided near the opening of the fume hood body 1, and finally be discharged from the fume hood cavity 101 through the drainage gap 103, thus preventing rainwater from accumulating in the fume hood cavity 101.

[0047] This application utilizes the guide slope 201 on the baffle 2 and the drainage notch 103 on the fume hood body 1 to quickly drain rainwater entering the fume hood cavity 101, preventing rainwater from accumulating in the fume hood cavity 101 for a long time. This avoids corrosion of the inner wall of the fume hood body 1 due to water accumulation, extends the service life of the fume hood, and reduces the maintenance and replacement costs incurred by users due to fume hood damage.

[0048] Compared to traditional fume hoods, the fume hood provided in this application has a relatively simple structure, making it easy to manufacture and install. It eliminates the need for complex components and processes, reducing production costs, and is also easy for users to install and maintain themselves, thus offering high practicality and economy.

[0049] In one possible implementation, the opening extends radially outward to form a first extension 104, and the circumferential edge of the baffle 2 extends radially outward to form a second extension 202, with the first extension 104 and the second extension 202 abutting against each other. During the installation of the fume hood, the opening of the fume hood body 1 extends radially outward to form the first extension 104, and the circumferential edge of the baffle 2 extends radially outward to form the second extension 202, with the first extension 104 and the second extension 202 abutting against each other during installation. This structure creates a tight connection between the baffle 2 and the smoke hood body 1. When rainwater enters the smoke hood cavity 101 from the smoke exhaust hole 102, the baffle 2 acts as a barrier, while the rainwater flows along the surface of the baffle 2. The abutting design of the first extension 104 and the second extension 202 can, to a certain extent, prevent rainwater from seeping deeper into the smoke hood body 1 through the gap between the baffle 2 and the opening of the smoke hood body 1. It also provides a structural basis for the subsequent guide slope 201 to guide the rainwater to the drainage gap 103, ensuring that the rainwater can be discharged according to the designed path.

[0050] Understandably, the first extension 104 and the second extension 202 abut against each other, increasing the contact area between the baffle 2 and the smoke hood body 1, improving the firmness and stability of the connection between the two, making the baffle 2 less likely to loosen or fall off during long-term use, and ensuring the reliability of the overall structure of the smoke hood.

[0051] Please refer to Figure 3 In this embodiment, one end of the guide slope 201 is connected to the second extension 202, and the other end is connected to the surface. On rainy days, rainwater enters the fume hood cavity 101 through the smoke exhaust hole 102 and falls onto the surface of the baffle 2. Since one end of the guide slope 201 is connected to the second extension 202 and the other end is connected to the surface of the baffle 2, the rainwater flows along the surface of the baffle 2 to the starting end of the guide slope 201 (where it connects to the surface of the baffle 2). Under the influence of gravity, the rainwater flows along the guide slope 201 from the starting end to the opposite end connected to the second extension 202. Finally, the guide slope 201 guides the rainwater to the drainage gap 103 located near the opening end of the fume hood body 1, allowing the rainwater to be smoothly discharged from the fume hood.

[0052] In other words, the connection design between the guide slope 201 and the second extension 202 and the surface of the baffle 2 provides a clear and smooth flow path for rainwater. This prevents rainwater from flowing or accumulating randomly on the surface of the baffle 2, ensuring that rainwater can be discharged from the fume hood quickly and efficiently, reducing the residence time of rainwater inside the fume hood, and reducing the possibility of corrosion of the inner wall of the fume hood.

[0053] Understandably, this connection method allows rainwater to flow directly along the guide slope 201, reducing obstruction and detours during flow and thus improving drainage efficiency. Even under heavy rainfall, it effectively prevents rainwater from accumulating inside the fume hood, ensuring its normal operation.

[0054] Please refer to this again. Figure 3 A drainage gap 103 is located in the first extension 104. When rainwater enters the fume hood cavity 101, it flows in a specific direction under the guidance of the guide slope 201 of the baffle 2. Since the drainage gap 103 is located in the first extension 104, the guide slope 201 guides the rainwater to the position of the first extension 104, allowing the rainwater to flow directly into the drainage gap 103 and then smoothly exit the fume hood. This design makes the path of rainwater from entering the fume hood cavity 101 to exiting the fume hood cavity 101 more direct and efficient, avoiding the rainwater from meandering or accumulating in the fume hood cavity 101.

[0055] Please refer to this again. Figure 2 In one possible implementation, the top wall of the fume hood cavity 101 is provided with a flow guiding structure 105, the longitudinal section of which is narrower at the top and wider at the bottom. When a small amount of rainwater or water vapor in the exhaust gas condenses on the top wall of the fume hood cavity 101, forming condensate, the flow guiding structure with its narrower-at-the-top-wider-at-the-bottom shape creates a slope on its surface. Under the influence of gravity, the condensate flows downward along the surface of the flow guiding structure 105, further assisting the rainwater or condensate to flow towards the side wall of the fume hood body 1, and finally discharges through the drainage opening 103.

[0056] Understandably, the flow guiding structure 105 can further enhance the drainage capacity, not only effectively draining rainwater, but also timely draining condensate from the top wall, preventing condensate from accumulating and corroding the inner wall of the fume hood body 1, and providing more comprehensive protection for the fume hood body 1.

[0057] Please refer to Figure 1 In one possible implementation, the exhaust port 102 includes an oblong hole 1021 and a round hole 1022, wherein the oblong hole 1021 is inclinedly disposed on the side wall of the fume hood cavity 101. When the outdoor gas water heater is running, the exhaust gas generated by combustion enters the fume hood cavity 101 through the exhaust pipe 302. Since the side wall of the fume hood cavity 101 has both oblong holes 1021 and round holes 1022, the exhaust gas will diffuse and be discharged to the outside atmosphere through these holes simultaneously. The oblong hole 1021 is inclinedly disposed on the side wall of the fume hood cavity 101. This inclination angle changes the direction of exhaust gas discharge, so that the exhaust gas is not discharged directly perpendicular to the side wall, but diffuses into the atmosphere at a certain inclination angle. The round hole 1022, on the other hand, discharges exhaust gas directly through its opening in a conventional manner.

[0058] In rainy weather, since the round hole 1022 is a conventional hole, rainwater may directly enter the fume hood cavity 101 through the hole. However, the obliquely shaped hole 1021, which is set at an angle, changes the path and angle of rainwater entry to a certain extent, making it difficult for rainwater to directly enter the interior of the fume hood cavity 101 through the obliquely shaped hole 1021, thus playing a certain role in rain protection.

[0059] The inclined setting of the waist-shaped hole 1021 increases the diffusion angle of exhaust gas, allowing the exhaust gas to mix more evenly with the outside air, improving the smoke exhaust efficiency, reducing the accumulation of exhaust gas around the fume hood, and reducing the impact of exhaust gas on the surrounding environment and personnel.

[0060] Meanwhile, the inclined waist-shaped hole 1021 has a significant blocking effect on rainwater. Compared with the vertical round hole 1022, it greatly reduces the amount of rainwater entering the fume hood cavity 101, reduces the risk of rainwater corrosion on the inner wall of the fume hood, extends the service life of the fume hood, and also reduces the water heater malfunctions that may be caused by rainwater entering the fume hood.

[0061] Specifically, in each sidewall, there are two circular holes 1022, and the diameters of the two circular holes 1022 are not the same. In this embodiment, the two circular holes 1022 are located in the middle of the sidewall, and waist-shaped holes 1021 are distributed on both sides of them.

[0062] Secondly, please refer to Figures 4 to 6 This application also provides an outdoor gas water heater 300, including a housing 301 and an outdoor gas water heater hood 100 as described above. The outdoor gas water heater hood 100 is installed on the upper outer part of the housing 301, such that the baffle 2 abuts against the housing 301. During installation, the outdoor gas water heater hood 100 is installed on the upper outer part of the housing 301, ensuring that the baffle 2 abuts against the housing 301.

[0063] When the water heater is running, the exhaust gas generated by combustion enters the fume hood cavity 101 through the exhaust pipe 302, which is connected to the fume hood cavity 101. The exhaust holes 102 (such as oblong holes 1021 and round holes 1022) on the circumferential sidewalls of the fume hood cavity 101 discharge the exhaust gas into the atmosphere, preventing exhaust gas from accumulating around the water heater and ensuring normal combustion and operation. At the same time, the fume hood's anti-backflow function prevents external wind from blowing exhaust gas back into the water heater, ensuring the stability of the combustion process.

[0064] On rainy days, rainwater may enter the fume hood cavity 101 through the exhaust port 102. The baffle acts as a barrier and guide, with its guide slope 201 directing the rainwater to the drainage opening 103 on the fume hood body 1, allowing the rainwater to exit the fume hood. Since the baffle 2 abuts against the housing 301, this structure further prevents rainwater from entering the water heater through the gap between the baffle 2 and the housing 301, protecting the electrical components and combustion system inside the water heater from rainwater corrosion.

[0065] Please refer to Figure 5 In one possible implementation, a seal 3 is provided between the baffle 2 and the housing 301. In an outdoor gas water heater, the baffle 2 is installed on the upper part of the outer side of the housing 301 and abuts against the housing 301, with the seal 3 provided between them. When the water heater is running, rainwater, dust, and other impurities in the external environment attempt to enter the water heater through the gap between the baffle 2 and the housing 301. At this time, the seal 3, due to its own material properties (such as elasticity and softness), tightly fills the gap between the baffle 2 and the housing 301, forming an effective barrier to prevent impurities from entering. At the same time, the seal also plays a certain role in isolating heat and sound that may be generated inside the water heater, reducing heat loss and noise transmission.

[0066] Understandably, seal 3 effectively prevents rainwater and dust from entering the water heater, protecting the electrical components, combustion system and other key parts inside the water heater from damage, reducing the risk of short circuits, corrosion and other malfunctions caused by impurities, and extending the service life of the water heater.

[0067] Please refer to Figure 6 The outdoor gas water heater 300 provided in this application also includes a flue pipe 302. A baffle 2 has an axially penetrating flue port 203, through which the flue pipe 302 passes to communicate with the fume hood cavity 101. When the outdoor gas water heater is running, the exhaust gas generated by combustion first enters the flue pipe 302. Because the baffle 2 has an axially penetrating flue port 203, and the flue pipe 302 passes through this flue port 203 and communicates with the fume hood cavity 101, the exhaust gas flows along the flue pipe 302 and finally enters the fume hood cavity 101. The exhaust holes 102 (such as oblong holes 1021 and round holes 1022) on the circumferential sidewalls of the fume hood cavity 101 provide a discharge channel for the exhaust gas, allowing it to diffuse into the atmosphere and complete the entire exhaust process.

[0068] The baffle 2 not only serves to prevent rain and guide rainwater, but its exhaust port 203 also provides an installation position for the exhaust pipe 302, allowing the exhaust pipe 302 to be reliably connected to the hood cavity 101. This design integrates the exhaust function with the baffle's rainproof function, achieving a compact layout and efficient operation of the water heater's exhaust system.

[0069] In one possible implementation, the exhaust pipe 302 is at a predetermined distance from the top surface of the fume hood cavity 101. When the water heater is running, the exhaust gas generated by combustion enters the fume hood cavity 101 through the exhaust pipe 302. Due to this predetermined distance, the exhaust gas forms a certain buffer space within the fume hood cavity 101 after entering. The exhaust gas does not directly impact the top surface of the fume hood cavity 101, but can diffuse and mix to a certain extent within this space before being discharged into the atmosphere through the exhaust holes 102 (such as the waist-shaped holes 1021 and the round holes 1022) on the circumferential sidewall of the fume hood cavity 101.

[0070] In other words, the preset distance prevents exhaust gas from directly impacting the top surface of the fume hood cavity 101, reducing the obstruction encountered by the airflow during the exhaust process, allowing the exhaust gas to flow more smoothly and improving exhaust efficiency. For example, without this distance, the exhaust gas directly impacting the top surface may generate eddies, increasing airflow resistance and leading to poor exhaust.

[0071] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0072] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the outdoor gas water heater hood or component 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 application.

[0073] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0074] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0075] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0076] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0077] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Since these modifications and variations fall within the scope of the claims and their equivalents, this application also intends to include these modifications and variations.

[0078] The above description describes specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An outdoor gas water heater hood, characterized in that, include: The smoke hood body has a smoke hood cavity that is connected to the exhaust pipe of the outdoor gas water heater, and the circumferential sidewall of the smoke hood cavity is provided with a number of exhaust holes. A baffle is disposed below the smoke hood body and abuts against the end face of the opening end of the smoke hood body; The baffle has a guide slope on the side surface facing the smoke hood cavity; The smoke hood body has at least one drainage gap near the opening end, and the guide slope extends obliquely toward the drainage gap.

2. The outdoor gas water heater hood according to claim 1, characterized in that, The opening extends radially outward to form a first extension, and the circumferential edge of the baffle extends radially outward to form a second extension, with the first extension and the second extension abutting against each other.

3. The outdoor gas water heater hood according to claim 2, characterized in that, One end of the guide slope is connected to the second extension portion, and the other end is connected to the surface.

4. The outdoor gas water heater hood according to claim 2, characterized in that, The drainage gap is located in the first extension.

5. The outdoor gas water heater hood according to claim 1, characterized in that, The top wall of the smoke hood cavity is provided with a flow guiding structure, and the longitudinal section of the flow guiding structure is formed into a shape that is narrow at the top and wide at the bottom.

6. The outdoor gas water heater hood according to claim 1, characterized in that, The smoke exhaust port includes an oblong hole and a round hole, wherein the oblong hole is inclinedly disposed on the side wall of the smoke hood cavity.

7. An outdoor gas water heater, characterized in that, The device includes a housing and an outdoor gas water heater hood as described in any one of claims 1-6, wherein the outdoor gas water heater hood is installed on the upper outer side of the housing and such that the baffle abuts against the housing.

8. The outdoor gas water heater according to claim 7, characterized in that, A sealing element is provided between the baffle and the housing.

9. The outdoor gas water heater according to claim 7, characterized in that, It also includes a smoke exhaust pipe, the baffle is provided with an axially penetrating smoke exhaust port, and the smoke exhaust pipe passes through the smoke exhaust port to communicate with the smoke hood cavity.

10. The outdoor gas water heater according to claim 9, characterized in that, The exhaust pipe is at a predetermined distance from the top surface of the smoke hood cavity.

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