Gas water heater

Abstract

The utility model relates to the technical field of water heaters, in particular to a gas water heater, which comprises a burner casing, a gas inlet pipe, a gas outlet pipe, a gas inlet pipe, a gas outlet pipe and a gas outlet pipe, a smoke exhaust pipe is inserted into the smoke exhaust pipe mounting hole and exhausts smoke in the accommodating cavity outwards; a mounting gap is formed between the inner wall of the smoke exhaust pipe mounting hole and the smoke exhaust pipe; the periphery of the smoke exhaust pipe is sleeved with a blocking sleeve, and the blocking sleeve covers the installation gap so as to block noise in the containing cavity. Therefore, the gas water heater capable of weakening noise transmission is formed.

Description

Technical Field

[0001] The utility model relates to the technical field of water heaters, and more specifically to a gas water heater. Background Art

[0002] The gas water heater is one of the commonly used household appliances at present, which includes a burner housing, a burner assembly placed in the burner housing, a heat exchanger and a fan assembly.

[0003] When the gas water heater is working, the smoke generated by the internal burner assembly needs to be discharged outward in a directional manner, so an exhaust pipe is provided, which is generally inserted into the exhaust pipe installation hole of the gas water heater; and in order to allow the exhaust pipe to be smoothly inserted into the exhaust pipe installation hole, the diameter of the exhaust pipe installation hole is often larger than the outer diameter of the exhaust pipe, resulting in a large gap between the exhaust pipe and the wall of the exhaust pipe installation hole after the exhaust pipe is installed. When the gas water heater is working, the noise generated by the operation of its internal burner assembly, heat exchanger and fan assembly is easy to be transmitted outward from the gap between the exhaust pipe and the wall of the exhaust pipe installation hole, resulting in a bad user experience. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies of the prior art and to provide a gas water heater capable of reducing noise emission to optimize the user experience.

[0005] The technical solutions of the utility model are as follows:

[0006] Gas water heater, including:

[0007] A burner housing having a receiving cavity and a smoke exhaust pipe mounting hole;

[0008] A smoke exhaust pipe is inserted into the smoke exhaust pipe installation hole to discharge smoke in the accommodating cavity to the outside;

[0009] There is an installation gap between the inner wall of the exhaust pipe installation hole and the exhaust pipe;

[0010] A blocking sleeve is sleeved on the outer periphery of the smoke exhaust pipe, which covers the installation gap to block the noise in the accommodating cavity.

[0011] As a further preferred solution, the blocking sleeve is placed outside the burner housing and covers the installation gap from the outside.

[0012] As a further preferred solution, the outer surface of the blocking sleeve has a guide surface, and the guide surface is inclined so as to guide the material falling on the blocking sleeve to fall downward.

[0013] As a further preferred solution, a positioning portion is provided on the burner housing, and a docking portion is provided on the blocking sleeve, and in the insertion direction of the smoke exhaust pipe, the docking portion is plugged into the positioning portion.

[0014] As a further preferred solution, the positioning portion is: a protrusion arranged on the outer surface of the burner housing;

[0015] The docking portion is a groove arranged on the blocking sleeve and adapted for the positioning portion to be inserted into.

[0016] As a further preferred solution, a surface of the blocking sleeve facing the burner housing includes a plane, and the positioning portion includes a portion that fits with the plane.

[0017] As a further preferred solution, the blocking sleeve has an inserting portion adapted to be inserted into the installation gap.

[0018] As a further preferred solution, the plug-in portion is an annular structure sleeved on the outer circumference of the smoke exhaust pipe.

[0019] As a further preferred solution, the plug-in portion has an end inserted into the installation gap, and the end is chamfered to form an inclined surface for guiding the plug-in portion to be inserted into the installation gap.

[0020] As a further preferred solution, the blocking sleeve is elastic.

[0021] The main beneficial effects of the above technical solution are:

[0022] By setting a blocking sleeve, the gap between the inner wall of the smoke exhaust pipe installation hole and the smoke exhaust pipe can be covered to block the noise generated in the accommodating cavity, thereby reducing the noise transmitted from the burner shell to the outside, thereby optimizing the user experience of the gas water heater.

[0023] Further or more detailed beneficial effects will be described in detail in conjunction with specific examples in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] Figure 1 It is a schematic diagram of the overall structure of a gas water heater.

[0026] Figure 2 This is a schematic diagram of the barrier sleeve installation structure.

[0027] Figure 3 Indication of a blocking sleeve Figure 1 .

[0028] Figure 4 Indication of a blocking sleeve Figure 2 .

[0029] As shown in the figure: burner shell-1, accommodating cavity-1.1, smoke exhaust pipe installation hole-1.2, positioning part-1.3, smoke exhaust pipe-2, blocking sleeve-3, insertion hole-3.1, docking part-3.2, docking part-3.3, plug-in part-3.4. DETAILED DESCRIPTION

[0030] The present invention is specifically described below with reference to the following embodiments:

[0031] Example:

[0032] Gas water heater, such as Figure 1 As shown in FIG. 1 , the burner housing 1 mainly comprises a burner housing 1 formed of a plate member, and an accommodating cavity 1.1 is formed inside the burner housing 1 for accommodating and installing components such as a burner, a heat exchanger and a smoke exhaust hood.

[0033] At the same time, a smoke exhaust pipe mounting hole 1.2 is provided on the burner housing 1, which is a through hole arranged on the burner housing 1, one end of the through hole extends to the outer surface of the burner housing 1 and is connected to the external space of the burner housing 1; the other end extends to the side wall of the accommodating chamber 1.1 and is connected to the accommodating chamber 1.1.

[0034] Moreover, the smoke exhaust pipe installation hole 1.2 is inserted with: a smoke exhaust pipe 2 for exhausting the smoke in the accommodating chamber 1.1 to the outside. Specifically, when the gas water heater is working, the burner in the accommodating chamber 1.1 works to generate high-temperature smoke, and the high-temperature smoke flows to the smoke exhaust hood that receives the smoke generated by the burner; one end of the smoke exhaust pipe 2 is connected to the smoke exhaust hood to receive the high-temperature smoke flowing into the smoke exhaust hood, and the other end extends from the smoke exhaust pipe installation hole 1.2 to the outside of the burner housing 1; so that the smoke in the smoke exhaust hood can be discharged to the outside.

[0035] Considering the overall precision requirements, production costs and production and assembly efficiency, the aperture size of the exhaust pipe installation hole 1.2 is generally slightly larger than the outer diameter size of the exhaust pipe 2, so that the exhaust pipe 2 can be smoothly inserted into the exhaust pipe installation hole 1.2 during installation; at this time, there is an installation gap between the inner wall of the exhaust pipe installation hole 1.2 and the exhaust pipe 2. This installation gap is produced based on normal installation requirements, and when the exhaust pipe 2 is actually inserted into the exhaust pipe installation hole 1.2, the installation gap left is not very large.

[0036] However, due to objective requirements such as production and assembly, there is an installation gap, which causes noise to be transmitted from the accommodating chamber 1.1 to the outside through the installation gap when the burner and other components in the accommodating chamber 1.1 are working, resulting in a poor user experience.

[0037] Based on this, in this embodiment, as shown in the attached Figure 2As shown in the figure, a blocking sleeve 3 can be mounted on the outer periphery of the smoke exhaust pipe 2, that is, the blocking sleeve 3 has an insertion hole 3.1, and the aperture size of the insertion hole 3.1 is adapted to the outer diameter size setting of the smoke exhaust pipe 2; so that after the blocking sleeve 3 is mounted on the outer periphery of the smoke exhaust pipe 2, it can cover the installation gap to block the noise in the accommodating cavity 1.1, and then reduce the noise transmitted from the burner housing 1 to the outside, thereby optimizing the user experience of the gas water heater.

[0038] The blocking sleeve 3 can be placed in the accommodating cavity 1.1. At this time, the blocking sleeve 3 is placed in the burner housing 1 and covers the installation gap from the inside of the burner housing 1.

[0039] Or, as attached Figure 2 As shown in the figure, in this embodiment, the blocking sleeve 3 is preferably placed outside the burner housing 1, and covers the installation gap from the outside of the burner housing 1. While covering the installation gap to block the noise from being transmitted, it can better prevent external dust and other impurities from entering the accommodating cavity 1.1 through the installation gap.

[0040] Further, in order to prevent dust and other impurities from accumulating on the outer surface of the blocking sleeve 3, the Figures 2 to 3 As shown in FIG, the outer surface of the blocking sleeve 3 may have a guide surface 3.2, and the guide surface 3.2 is arranged to be inclined so as to guide the materials falling on the blocking sleeve 3 to fall downward.

[0041] As attached Figure 2 As shown in , the burner housing 1 may also have a positioning portion 1.3, and the blocking sleeve 3 is provided with a docking portion 3.3, and in the insertion direction of the smoke exhaust pipe 2 (i.e., the direction in which the smoke exhaust pipe 2 is inserted into the smoke exhaust pipe installation hole 1.2), the docking portion 3.3 is plugged into the positioning portion 1.3. This can improve the installation stability of the blocking sleeve 3, so that the blocking sleeve 3 can stably cover the installation gap, thereby stably blocking the noise from being transmitted.

[0042] As attached Figure 2 As shown in , in this embodiment, the positioning portion 1.3 is preferably: a protrusion arranged on the outer surface of the burner housing 1. Matchingly, the docking portion 3.3 is: a groove arranged on the blocking sleeve 3 and adapted for the positioning portion 1.3 to be inserted.

[0043] At this time, if the attached Figure 2 As shown in the figure, the side of the blocking sleeve 3 facing the burner housing 1 includes a plane, and the positioning portion 1.3 has a portion that fits with the plane, increasing the contact area between the blocking sleeve 3 and the positioning portion 1.3; so as to further improve the positioning and supporting stability of the blocking sleeve 3 by the positioning portion 1.3.

[0044] On the basis of the above, as attached Figure 4As shown in the figure, the blocking sleeve 3 can also be provided with a plug-in portion 3.4, which is a protruding structure arranged on a side surface facing the burner housing 1, and its size is adapted to the installation gap between the inner wall of the smoke exhaust pipe mounting hole 1.2 and the smoke exhaust pipe 2, so that the blocking sleeve 3 can be mounted on the smoke exhaust pipe 2, and when the installation gap is covered, the plug-in portion 3.4 can be adapted to be inserted into the installation gap between the inner wall of the smoke exhaust pipe mounting hole 1.2 and the smoke exhaust pipe 2, so as to have a better noise blocking effect.

[0045] Furthermore, the plug-in portion 3.4 is preferably an annular structure sleeved on the outer circumference of the smoke exhaust pipe 2, so as to fill the installation gap between the inner wall of the smoke exhaust pipe installation hole 1.2 and the smoke exhaust pipe 2 with the maximum area, thereby further improving the noise blocking effect.

[0046] In this embodiment, the plug part 3.4 has one end inserted into the installation gap, which is chamfered to form an inclined surface to guide the plug part 3.4 into the installation gap, so that the plug part 3.4 can be inserted into the installation gap between the inner wall of the exhaust pipe installation hole 1.2 and the exhaust pipe 2 more smoothly.

[0047] According to actual needs, the blocking sleeve 3 can be made of a variety of materials, such as plastic or metal.

[0048] In this embodiment, the blocking sleeve 3 is preferably made of an elastic material such as rubber or silicone to have elasticity; in this way, the aperture size of the insertion hole 3.1 can be slightly smaller than the outer diameter size of the smoke exhaust pipe 2, so that the blocking sleeve 3 can be more tightly mounted on the outside of the smoke exhaust pipe 2, so as to better cover the installation gap between the inner wall of the smoke exhaust pipe mounting hole 1.2 and the smoke exhaust pipe 2, and thus better block the noise in the accommodating chamber 1.1 from being transmitted outward.

[0049] On the basis of the above, a sound absorbing member may be provided on the side surface of the blocking sleeve 3 facing the installation gap, and the sound absorbing member is preferably sound absorbing cotton, so as to further improve the noise blocking effect.

[0050] The above is only a preferred embodiment of the utility model, and does not limit the scope of the utility model. In addition, the terms "vertical", "horizontal", "front", "rear", etc. mentioned in the embodiments of the utility model indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the utility model. It should be further explained that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like in the description should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances. The utility model will be described in detail with reference to the drawings and in combination with the embodiments.

[0051] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A gas water heater, characterized in that: include: A burner housing (1) having a containing cavity (1.1) and a smoke exhaust pipe mounting hole (1.2); A smoke exhaust pipe (2) is inserted into the smoke exhaust pipe installation hole (1.2) to discharge smoke in the accommodating cavity (1.1) to the outside; There is an installation gap between the inner wall of the smoke exhaust pipe installation hole (1.2) and the smoke exhaust pipe (2); The smoke exhaust pipe (2) is sheathed with a blocking sleeve (3) on its outer periphery, which covers the installation gap to block the noise in the accommodating cavity (1.1).

2. The gas water heater according to claim 1, characterized in that: The blocking sleeve (3) is placed outside the burner housing (1) and covers the installation gap from the outside.

3. The gas water heater according to claim 2, characterized in that: The outer surface of the blocking sleeve (3) has a guide surface (3.2), and the guide surface (3.2) is arranged in an inclined manner so as to guide the material falling on the blocking sleeve (3) to fall downwards.

4. The gas water heater according to claim 1, characterized in that: The burner housing (1) has a positioning portion (1.3), and the blocking sleeve (3) is provided with a docking portion (3.3). In the insertion direction of the smoke exhaust pipe (2), the docking portion (3.3) is plugged into the positioning portion (1.3).

5. The gas water heater according to claim 4, characterized in that: The positioning portion (1.3) is: a protrusion arranged on the outer surface of the burner housing (1); The docking portion (3.3) is a groove arranged on the blocking sleeve (3) and adapted for the positioning portion (1.3) to be inserted into.

6. The gas water heater according to claim 5, characterized in that: The side of the blocking sleeve (3) facing the burner housing (1) comprises a plane, and the positioning portion (1.3) comprises a portion that fits the plane.

7. The gas water heater according to claim 1, characterized in that: The blocking sleeve (3) has an inserting portion (3.4) which is adapted to be inserted into the installation gap.

8. The gas water heater according to claim 7, characterized in that: The plug-in portion (3.4) is an annular structure sleeved on the outer circumference of the smoke exhaust pipe (2).

9. The gas water heater according to claim 7, characterized in that: The plug-in portion (3.4) has an end inserted into the installation gap, and the end is chamfered to form an inclined surface for guiding the plug-in portion (3.4) to be inserted into the installation gap.

10. The gas water heater according to any one of claims 1 to 9, characterized in that: The blocking sleeve (3) is elastic.

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