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 shell and a water supply pipeline arranged in the shell. The water supply pipeline comprises two water supply pipelines which are arranged at an interval and a water tank body for communicating the two water supply pipelines; the water tank body is detachably and fixedly connected between the two water supply pipelines; a water flow cavity for communicating the two water supply pipelines is formed in the water tank body; a window is arranged on the shell and is opposite to the water tank body, so that a connecting structure between the water tank body and the water supply pipeline can be directly observed from the outside of the shell through the window. Therefore, the gas water heater capable of directly and quickly observing the water tank body is formed.

Description

Technical Field

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

[0002] A gas water heater, also known as a gas water heating furnace, refers to a gas appliance that uses gas as fuel and transfers heat to cold water flowing through a heat exchanger through combustion heating to achieve the purpose of preparing hot water. It includes a housing and a water supply pipeline installed inside the housing for water to circulate.

[0003] In actual use, a sensor needs to be provided in the water supply pipeline inside the gas water heater, such as a temperature sensor for monitoring the temperature of the water in the water supply pipeline. In order to facilitate the subsequent maintenance of the sensor during use, a detachable water tank body is provided in the water supply pipeline, and the sensor is placed in the water tank body to monitor the temperature of the water in the water supply pipeline. Since the water tank body is detachably arranged, its connection part is prone to leakage problems; and the existing structure of the gas water heater cannot directly and quickly observe the water tank body, resulting in a lag in maintenance actions when leakage occurs at the water tank body, and thus it is easy to have a situation where too much water leaks and corrodes other parts or other household appliances. Summary of the Utility Model

[0004] The purpose of the utility model is to provide, in view of the deficiencies of the prior art: a gas water heater that can directly and quickly observe the water tank body, so as to perform targeted maintenance more quickly when leakage occurs at the water tank body.

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

[0006] A gas water heater, comprising: a housing and a water supply pipeline placed inside the housing;

[0007] The water supply pipeline includes: two water supply pipes arranged at intervals, and a water tank body connecting the two water supply pipes;

[0008] The water tank body is detachably fixed between the two water supply pipes, and the water tank body has: a water flow cavity for the two water supply pipes to communicate with each other;

[0009] A window is provided on the housing, and the window is arranged opposite to the water tank body to achieve:

[0010] Through the window, the water tank body can be directly observed from the outside of the housing. So when leakage occurs at the water tank body, the leakage situation of the water tank body can be directly observed from the outside of the housing through the window (that is: observing whether there is leakage in the water tank body itself and the connection between the water tank body and the water supply pipeline).

[0011] Further as a preferred solution, the caliber of the water flow cavity is larger than the diameter of the water supply pipe.

[0012] Further as a preferred solution, for each water supply pipe, an insertion pipe is provided on the water tank body to match the water supply pipe, and the water supply pipe is inserted into the insertion pipe and communicated with the water flow cavity;

[0013] Moreover, the insertion pipe and the water supply pipe inserted into the insertion pipe are detachably connected through a buckling structure.

[0014] Further as a preferred solution, the buckling structure includes:

[0015] A first flange provided on the outer periphery of the insertion pipe;

[0016] A second flange provided on the outer periphery of the water supply pipe. When the water supply pipe is inserted into the insertion pipe, the second flange is fitted and attached to the first flange;

[0017] It further includes a detachable clip, which is configured to: limit the first flange and the second flange to fit together, so that the insertion pipe and the water supply pipe inserted into the insertion pipe are detachably connected.

[0018] Further as a preferred solution, the clip includes:

[0019] Two clamps respectively provided on both sides of the water supply pipe, and a connecting arm connecting the two clamps;

[0020] Each clamp is provided with a clamping hole, and the mutually attached first flange and second flange are jointly installed in the clamping hole, so that: the first flange and the second flange are restricted to fit together;

[0021] Moreover, the connecting arm has elasticity, so that: by driving the connecting arm to undergo an elongation deformation, the clip can be in a detachable state.

[0022] Further as a preferred solution, a seal is provided between the water supply pipe and the inner wall of the water tank body to fill the gap between the water supply pipe and the inner wall of the water tank body.

[0023] Further as a preferred solution, a support member is provided in the housing, which is fixed to the housing, and the water tank body is detachably fixed to the support member.

[0024] Further as a preferred solution, the corners of the side wall of the water flow cavity are arranged in a circular arc shape.

[0025] Further as a preferred solution, a number of reinforcing ribs are provided on the water tank body.

[0026] Further as a preferred solution, a protective plate which is transparent and covers the window is provided on the housing.

[0027] The main beneficial effects of the above technical solutions are as follows:

[0028] By providing a window on the housing that is aligned with the water tank body, it is possible to conveniently, directly, and quickly observe the water tank body, so as to perform targeted maintenance and repair more quickly when there is a water leak at the water tank body.

[0029] Further or more detailed beneficial effects will be described in combination with specific embodiments in the specific implementation manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The following further describes the present utility model with reference to the accompanying drawings:

[0031] Figure 1 It is a schematic diagram of the overall structure of a gas water heater.

[0032] Figure 2 It is a schematic diagram of the installation structure of the water tank body Figure 1 .

[0033] Figure 3 It is a schematic diagram of the installation structure of the water tank body Figure 2 .

[0034] Figure 4 It is a schematic diagram of the installation structure of the water tank body Figure 3 .

[0035] As shown in the figure: housing - 1, bottom shell - 1a, panel - 1b, window - 1.1, protective plate - 1.2, water supply pipeline - 2, water supply pipe - 2.1, second flange - 2.11, water tank body - 2.2, water flow cavity - 2.21, insertion pipe - 2.22, first flange - 2.23, reinforcing rib - 2.24, clip - 2.3, clamp - 2.31, connecting arm - 2.32, clamping hole - 2.33, seal - 2.4, heat exchanger - 3. SPECIFIC IMPLEMENTATION MANNER

[0036] The following specifically exemplifies the present utility model in combination with embodiments:

[0037] Embodiment:

[0038] A gas water heater, as shown in the attached Figure 1 to the attached Figure 4 figure, includes a housing 1 and a water circuit system disposed within the housing 1.

[0039] In this embodiment, the housing 1 includes a bottom shell 1a and a panel 1b. The bottom shell 1a has a receiving cavity with an opening on one side. The water circuit system is installed in the receiving cavity of the bottom shell 1a, and the panel 1b is fixedly connected to the bottom shell 1a, for example, by screws, to cover the opening of the receiving cavity, forming an outer shell with the water circuit system installed inside.

[0040] The water circuit system includes a water supply pipe 2 for the circulation of water supply. One end of the water supply pipe has a water inlet for the inflow of external water, and the other end has a water outlet for the outflow of water in the pipe.

[0041] Among them, the water supply pipe 2 generally also has a part of the pipe coiled around the heat exchanger 3 in the housing 1. When the water heater works, gas burns in the heat exchanger 3 to form high-temperature flue gas. Cold water enters the water supply pipe 2 from the water inlet of the water supply pipe 2. When flowing through the part of the pipe coiled around the heat exchanger 3, the high-temperature flue gas formed by the heat exchanger 3 heats the water to form hot water, and the hot water is discharged outward from the water outlet of the water supply pipe 2.

[0042] In order to monitor a certain state of the water in the water supply pipe 2, a sensor is usually set in the water supply pipe 2. For example, in order to monitor the temperature of the water in the water supply pipe 2 in real time, a temperature sensor is generally set in the water supply pipe 2.

[0043] Considering that the sensor is prone to problems during long-term use. Therefore, the sensor is generally installed in the detachable water tank body 2.2. By detaching the water tank body 2.2, the sensor can be more conveniently and easily detached from the water supply pipe 2 for maintenance or replacement.

[0044] Specifically, as shown in Appendix Figure 2 and Appendix Figure 3 As shown, the water supply pipe 2 in this embodiment includes: two water supply pipes 2.1 arranged at intervals, and a water tank body 2.2 connecting the two water supply pipes 2.1.

[0045] The water tank body 2.2 is detachably fixed between the two water supply pipes 2.1; and, a water flow cavity 2.21 for connecting the two water supply pipes 2.1 and accommodating the sensor is formed inside the water tank body 2.2 in a cavity shape. That is, when the water tank body 2.2 is installed between the two water supply pipes 2.1, the two water supply pipes 2.1 are connected through the water flow cavity 2.21; when a sensor is provided, the sensor is adaptively installed in the water flow cavity 2.21.

[0046] At this time, due to the detachable setting of the water tank body 2.2, it is easy to have a water leakage problem between the water tank body 2.2 and the water supply pipe 2.1. In order to facilitate the observation of the installation condition of the water tank body 2.2. As shown in Appendix Figure 1 As shown in the figure, in this embodiment, a window 1.1 is formed by opening a hole in the housing 1. The window 1.1 is arranged opposite to the water tank body 2.2, realizing that: through the window 1.1, the connection structure between the water tank body 2.2 and the water supply pipe 2.1 can be directly observed from outside the housing 1.

[0047] For example, Appendix Figure 1As shown in the figure, in this embodiment, a window 1.1 is provided on the panel 1b opposite to the water tank body 2.2.

[0048] In this way, without disassembling the housing 1 structure, the user can observe the water tank body 2.2 from the outside of the housing 1 through the window 1.1, so as to conveniently and directly observe whether the water tank body 2.2 itself leaks, and whether the installation structure between the water tank body 2.2 and the water supply pipe 2.1 is loose and leaks. When leakage occurs at the water tank body 2.2, targeted maintenance can be carried out more quickly.

[0049] Preferably, the diameter of the water flow chamber 2.21 is larger than the diameter of the water supply pipe 2.1. In this way, on the one hand, the sensor can have a larger accommodation space; on the other hand, placing the sensor in the water flow chamber 2.21 with a larger diameter and larger capacity enables the sensor to sense a larger amount of hot water to obtain more accurate detection results.

[0050] Among them, the water tank body 2.2 can be detachably fixed between the two water supply pipes 2.1 through a variety of detachable connection structures. For example, the water tank body 2.2 can be detachably fixed between the two water supply pipes 2.1 through common threaded structures or pipe joints for pipes.

[0051] In this embodiment, preferably, an insertion and snap connection structure is adopted to detachably fix the water tank body 2.2 between the two water supply pipes 2.1, ensuring convenient disassembly and assembly while improving the connection stability.

[0052] Specifically, as shown in the attached Figure 3 to the attached Figure 4 figure:

[0053] In this embodiment, for each water supply pipe 2.1, an insertion pipe 2.22 is provided on the water tank body 2.2 to match the water supply pipe 2.1. One end of the insertion pipe 2.22 is connected to the water flow chamber 2.21, and the other end is open for the water supply pipe 2.1 to be inserted. The water supply pipe 2.1 is inserted into the insertion pipe 2.22 and connected to the water flow chamber 2.21.

[0054] That is, as shown in the attached Figure 3 to the attached Figure 4 figure, at the upper end of the water tank body 2.2, an insertion pipe 2.22 is provided to match the upper water supply pipe 2.1. The upper water supply pipe 2.1 is inserted into the insertion pipe 2.22 at the upper end of the water tank body 2.2 and is connected to the water flow chamber 2.21. At the lower end of the water tank body 2.2, an insertion pipe 2.22 is provided to match the lower water supply pipe 2.1. The lower water supply pipe 2.1 is inserted into the insertion pipe 2.22 at the lower end of the water tank body 2.2 and is connected to the water flow chamber 2.21. Thus, the two water supply pipes 2.1 are connected through the water flow chamber 2.21.

[0055] At the same time, any plug-in tube 2.22 is detachably connected to the water supply pipe 2.1 inserted into the plug-in tube 2.22 via a buckle structure, so that the water tank body 2.2 is detachably fixed between the two water supply pipes 2.1.

[0056] In this embodiment, as shown in the attached Figure 3 To Attachment Figure 4 As shown, the buckle structure includes: a first flange 2.23 arranged on the outer periphery of the plug-in tube 2.22, a second flange 2.11 arranged on the outer periphery of the water supply pipe 2.1, and a detachable clip 2.3.

[0057] The first flange 2.23 is matched with the second flange 2.11, so that when the water supply pipe 2.1 is inserted into the plug-in pipe 2.22, the second flange 2.11 fits on the first flange 2.23. The clamp 2.3 is configured to restrict the first flange 2.23 and the second flange 2.11 from fitting together, so that the plug-in pipe 2.22 is detachably connected to the water supply pipe 2.1 inserted into the plug-in pipe 2.22.

[0058] Furthermore, as attached Figure 4 As shown, the clamp 2.3 in this embodiment includes: two clamps 2.31 arranged at intervals, and the two clamps 2.31 are respectively arranged on both sides of the water supply pipe 2.1; and also includes a connecting arm 2.32 connecting the two clamps 2.31.

[0059] Each clamp 2.31 is provided with a clamping hole 2.33, and the first flange 2.23 and the second flange 2.11 that fit together are embedded in the clamping hole 2.33. Figure 2 and attached Figure 3 As shown in the figure, the first flange 2.23 and the second flange 2.11 are fitted together in a restricted manner. Moreover, the connecting arm 2.32 is elastic so that the clamp 2.3 can be disassembled by driving the connecting arm 2.32 to stretch and deform. That is, by bending the two clamps 2.31 outwards, the connecting arm 2.32 is driven to stretch, so that the first flange 2.23 and the second flange 2.11 are separated from the clamping hole 2.33, and the clamp 2.3 can be disassembled, so that the water supply pipe 2.1 can be pulled out from the plug pipe 2.22, and the water tank body 2.2 can be disassembled.

[0060] A seal 2.4 may be provided between the water supply pipe 2.1 and the inner wall of the water tank 2.2 to fill the gap between the water supply pipe 2.1 and the inner wall of the water tank 2.2. The seal 2.4 is preferably a sealing ring made of silicone or rubber, etc., which is filled in the gap between the water supply pipe 2.1 and the inner wall of the water tank 2.2 to achieve sealing.

[0061] On the basis described above, a support member may also be provided inside the housing 1. The support member is fixed to the housing 1, and the water tank body 2.2 is detachably fixed to the support member by, for example, screws. At this time, the support member supports the water tank body 2.2 with a certain weight to improve the stability of the installation of the water tank body 2.2 and reduce the possibility of water leakage at the connection between the water tank body 2.2 and the water supply pipe 2.1.

[0062] Among them, the support member may be a support frame structure that is additionally fixed inside the housing 1 according to the support requirements for the water tank body 2.2. Alternatively, the support member may be the heat exchanger 3 accommodated in the housing 1. As shown in the appendix Figure 2 The water tank body 2.2 can be detachably fixed to the heat exchanger 3 by, for example, screws.

[0063] Further, the water flow cavity 2.21 is formed by surrounding several inner walls of the water tank body 2.2, and the several inner walls form the side walls of the water flow cavity 2.21. And for multiple adjacent side walls that are not in the same plane, there will be a clamping edge and an included angle formed between the adjacent side walls. In this embodiment, the corners of the side walls of the water flow cavity 2.21 are, for example, rounded by a rounding process to be arc-shaped, so that water can flow more smoothly in the water flow cavity 2.21 and reduce the possibility of eddy currents.

[0064] Furthermore, several reinforcing ribs 2.24 may also be provided on the water tank body 2.2 to enhance the structural strength of the water tank body 2.2 and reduce the possibility of damage during disassembly and assembly.

[0065] As shown in the appendix Figure 1 In this embodiment, a protective plate 1.2 may also be additionally provided on the housing 1. The protective plate 1.2 is a plate member made of, for example, transparent acrylic board, and it can cover the outer surface of the housing 1 as shown in the appendix Figure 1 and block and cover the window 1.1. To improve the sealing performance of the entire housing 1, it can improve the heating and heat preservation effect inside the housing 1 when the gas water heater is working properly and avoid heat escaping directly from the window 1.1.

[0066] The above are only the preferred embodiments of the present utility model, and do not limit the scope of the present utility model. In addition, in the embodiments of the present utility model, the terms "vertical", "horizontal", "front", "rear", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product is usually placed during use. It is only for the convenience of describing the present 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 should not be construed as a limitation to the present utility model. It should be further noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. 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 communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0067] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A gas water heater, characterized in that: include: A shell (1) and a water supply pipeline (2) disposed in the shell (1); The water supply pipeline (2) comprises: two water supply pipelines (2.1) arranged at intervals, and a water tank (2.2) connecting the two water supply pipelines (2.1); The water box body (2.2) is detachably fixed between the two water supply pipes (2.1), and the water box body (2.2) comprises: a water flow cavity (2.21) for connecting the two water supply pipes (2.1); The housing (1) is provided with a window (1.1), and the window (1.1) is arranged relative to the water tank body (2.2), so as to achieve: Through the window (1.1), the water tank body (2.2) can be directly observed from the outside of the housing (1).

2. The gas water heater according to claim 1, characterized in that: The diameter of the water flow cavity (2.21) is larger than the diameter of the water supply pipe (2.1).

3. The gas water heater according to claim 1, characterized in that: For each of the water supply pipes (2.1), a plug-in pipe (2.22) is provided on the water tank body (2.2) to match the water supply pipe (2.1), and the water supply pipe (2.1) is inserted into the plug-in pipe (2.22) to communicate with the water flow cavity (2.21); Furthermore, the plug-in tube (2.22) and the water supply pipe (2.1) inserted into the plug-in tube (2.22) are detachably connected via a buckle structure.

4. The gas water heater according to claim 3, characterized in that: The buckle structure comprises: A first flange (2.23) arranged on the outer periphery of the plug-in tube (2.22); a second flange (2.11) disposed on the outer periphery of the water supply pipe (2.1), wherein when the water supply pipe (2.1) is inserted into the plug pipe (2.22), the second flange (2.11) fits and abuts on the first flange (2.23); It also includes a detachable clip (2.3) configured to restrict the first flange (2.23) and the second flange (2.11) to fit together, so that the plug tube (2.22) and the water supply pipe (2.1) inserted into the plug tube (2.22) can be detachably connected.

5. The gas water heater according to claim 4, characterized in that: The clamp (2.3) comprises: Two clamps (2.31) respectively arranged on both sides of the water supply pipe (2.1), and a connecting arm (2.32) connecting the two clamps (2.31); Each of the clamps (2.31) is provided with a clamping hole (2.33), and the first flange (2.23) and the second flange (2.11) that fit together are embedded in the clamping hole (2.33) so that: the first flange (2.23) and the second flange (2.11) are fitted together in a restricted manner; Furthermore, the connecting arm (2.32) is elastic, so that the clip (2.3) can be put into a detachable state by driving the connecting arm (2.32) to stretch and deform.

6. The gas water heater according to claim 3, characterized in that: A sealing member (2.4) is provided between the water supply pipe (2.1) and the inner wall of the water tank body (2.2) to fill the gap between the water supply pipe (2.1) and the inner wall of the water tank body (2.2).

7. The gas water heater according to any one of claims 1 to 6, characterized in that: A support member is arranged inside the shell (1) and is fixed on the shell (1), and the water tank body (2.2) is detachably fixed on the support member.

8. The gas water heater according to any one of claims 1 to 6, characterized in that: The corners of the side walls of the water flow cavity (2.21) are arranged in an arc shape.

9. The gas water heater according to any one of claims 1 to 6, characterized in that: The water tank body (2.2) is provided with a plurality of reinforcing ribs (2.24).

10. The gas water heater according to claim 1, characterized in that: The housing (1) is provided with a transparent protective plate (1.2) that covers the window (1.1).

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