Water heater shell structure and gas water heater

Abstract

The utility model relates to the technical field of kitchen appliances, and discloses a water heater shell structure which comprises a bottom plate, a front panel and side plates connected to the edge of the bottom plate in a surrounding mode. The bottom plate and the side plates jointly form an accommodating cavity; the side plates extend outwards from the bottom plate to define a packaging opening communicated with the containing cavity. The front panel is detachably connected to the packaging opening; the side plate is provided with a maintenance opening which is laterally communicated with the accommodating cavity; the opening and closing assembly comprises a window frame installed on the side plate and a sealing plate slidably connected to the window frame, the window frame is provided with a window opening communicating with the maintenance opening in an aligned mode, and the sealing plate slides relative to the window frame to open or close the window opening. By arranging the maintenance opening, the opening degree of the containing cavity can be further increased, so that maintenance personnel can laterally access the containing cavity through the maintenance opening, part interference is effectively avoided, water heater elements installed in the deep position of the containing cavity are maintained and disassembled, and maintenance difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a water heater shell structure and a gas water heater. Background Technique

[0002] A gas water heater is a water heater that uses gas as an energy source. It generates heat by burning gas and then heats water to provide hot water for households or commercial places. It is currently the most convenient and economical device for quickly heating water.

[0003] The following problems exist in the current application process of gas water heaters: The burner structure of gas water heaters is complex, and compared with components, the probability of failure is relatively high. Therefore, in the actual application process, the frequency of regular maintenance and inspection of the burners of gas water heaters is relatively high. In this regard, although the front panels of the existing gas water heater shells are usually detachable, during the maintenance of the burners of gas water heaters, it is usually necessary to disassemble and open the side sealing plates on the sides of the burners. However, due to the compact internal structure of the existing gas water heaters, there are part interferences, which are not conducive to maintenance personnel opening the side sealing plates of the burners from the side, thus increasing the maintenance difficulty of the burners. Summary of the Utility Model

[0004] The utility model aims to provide a water heater shell structure and a gas water heater to solve the above technical problems.

[0005] To achieve the above object, the following technical solutions are provided:

[0006] In a first aspect, the utility model provides a water heater shell structure, including: a bottom plate, a front panel, and side plates that are surrounded and connected to the edge of the bottom plate; a receiving cavity is formed jointly by the bottom plate and the side plates; the side plates extend outward from the bottom plate to enclose and form a packaging opening that communicates with the receiving cavity; the front panel is detachably connected to the packaging opening; a maintenance opening that laterally communicates with the receiving cavity is provided on the side plates; an opening and closing assembly, which includes a window frame installed on the side plates and a sealing plate slidably connected to the window frame, the window frame is provided with a window that is aligned and communicated with the maintenance opening, and the sealing plate opens or closes the window by sliding relative to the window frame.

[0007] As an optional solution of the water heater shell structure provided by the utility model, a sliding groove is provided on the inner wall of the window, the sealing plate is slidably connected and received in the sliding groove, a blocking block is provided on the edge of the sealing plate, and a first limiting surface for abutting against the blocking block is provided on the movement path of the sealing plate sliding relative to the sliding groove.

[0008] As an optional solution of the water heater shell structure provided by the utility model, it further includes a limiting block, the limiting block is detachably connected to the sliding groove by a threaded fastener, and the first limiting surface is formed on the limiting block.

[0009] As an alternative solution for the water heater housing structure provided by the present utility model, the sliding groove extends longitudinally through the bottom of the window frame. The sealing plate slides downward relative to the sliding groove to open the maintenance opening, and the bottom end of the sealing plate is detachably connected to the side plate.

[0010] As an alternative solution for the water heater housing structure provided by the present utility model, the bottom end of the sealing plate is connected to the side plate by a threaded fastener.

[0011] As an alternative solution for the water heater housing structure provided by the present utility model, an activity groove is provided at the bottom end of the sealing plate. A connection knob is rotatably and movably inserted through the activity groove. One end of the connection knob close to the side plate is provided with a connection plug, and a limit groove for the connection plug to fit through is formed on the side plate.

[0012] As an alternative solution for the water heater housing structure provided by the present utility model, a second limit surface is formed in the activity groove. The second limit surface can limit the rotation trajectory of the connection knob by circumferentially abutting against the connection knob.

[0013] As an alternative solution for the water heater housing structure provided by the present utility model, a sealing strip is provided on the window frame. The sealing strip surrounds the window in a closed loop for sealingly abutting against the sealing plate.

[0014] As an alternative solution for the water heater housing structure provided by the present utility model, an installation groove is formed by inward depression at one end of the sealing plate close to the side plate. The installation groove substantially covers the maintenance opening, and a heat insulation layer is installed in the installation groove.

[0015] In a second aspect, the present utility model further provides a gas water heater, including the water heater housing structure as described above. A blower assembly, a burner and a heat exchange assembly are installed in the accommodation cavity. One end of the burner has a detachable side sealing plate, and the maintenance opening is aligned with the side sealing plate.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. Through the maintenance opening, the opening degree of the accommodation cavity can be further increased, so that maintenance personnel can access the accommodation cavity laterally through the maintenance opening, thereby effectively avoiding part interference and performing maintenance and disassembly operations on the water heater components installed deep in the accommodation cavity, reducing the maintenance difficulty;

[0018] 2. An opening and closing assembly is provided. By sliding the sealing plate relative to the window frame, the maintenance opening can be selectively opened or closed, which is convenient for maintenance and ensures the sealing performance and safety of the water heater;

[0019] 3. The window frame is provided with a sealing structure, which can form a sealing barrier, improve the connection sealing performance between the sealing plate and the window, and also play a sound insulation effect, reducing the vibration and noise transmitted during the operation of the water heater. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments of the present invention. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the content of the embodiments of the present invention and these drawings.

[0021] Figure 1 is a schematic structural diagram of the water heater housing structure before improvement;

[0022] Figure 2 is a schematic structural diagram of the interior of the water heater before improvement;

[0023] Figure 3 is a schematic structural diagram of the main housing of the water heater housing structure after improvement when the opening and closing assembly is not installed;

[0024] Figure 4 is a schematic structural diagram of the main housing of the water heater housing structure after improvement when the opening and closing assembly is installed;

[0025] Figure 5 is a three-dimensional structural diagram of the window frame;

[0026] Figure 6 is a sectional view of the window frame;

[0027] Figure 7 is a schematic structural diagram of the front of the sealing plate;

[0028] Figure 8 is a schematic structural diagram of the connection knob;

[0029] Figure 9 is a schematic structural diagram of the back of the sealing plate.

[0030] In the figure:

[0031] 1. Main housing; 11. Bottom plate; 12. Side plate; 13. Accommodation cavity; 14. Encapsulation port; 15. Maintenance port;

[0032] 16. Limit groove; 2. Opening and closing assembly; 21. Window frame; 211. Window opening; 212. Sliding groove; 213. Sealing strip; 22. Sealing plate; 221. Stopper; 222. Movable groove; 223. Connecting knob; 224. Connecting plug; 225. Second limiting surface; 226. Installation groove; 227. Heat insulation layer; 23. First limiting surface; 24. Limiting block; 3. Front panel; 4. Burner; 5. Fan assembly; 6. Heat exchanger assembly; 7. Side sealing plate. Detailed implementation mode

[0033] To make the technical problems solved by the present utility model, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the embodiments of the present utility model will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present utility model.

[0034] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. 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 thus cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0035] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside 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 situations.

[0036] Embodiment 1

[0037] Reference Figure 1 , Figure 2, a water heater housing structure, including a main housing 1 and a front panel 3. The main housing 1 includes a bottom plate 11 and several side plates 12. The several side plates 12 are enclosed and connected to one end edge of the bottom plate 11, and cooperate with the bottom plate 11 to form an accommodation cavity 13. This accommodation cavity 13 can be used to install various internal components of the water heater, such as a burner 4, a fan assembly 5, a heat exchanger assembly 6, etc. One end of the side plate 12 away from the bottom plate 11 extends outward from the bottom plate 11 to enclose and form a packaging opening 14 communicating with the accommodation cavity 13. The front panel 3 can be detachably connected to the packaging opening 14 by means of clamping, bolts, etc., for forwardly opening or closing at least part of the packaging opening 14.

[0038] Reference Figure 1 , Figure 2 and Figure 3 , the improvement of this application lies in: on the basis of setting the packaging opening 14, a maintenance opening 15 is additionally provided on the side plate 12 of the main housing 1 that laterally communicates with the accommodation cavity 13. When it is necessary to open the front panel 3 to repair and detect the internal water heater components installed in the accommodation cavity 13, due to the existence of the maintenance opening 15, the opening degree of the accommodation cavity 13 is further increased, enabling maintenance personnel to access the accommodation cavity 13 laterally through the maintenance opening 15, thereby effectively avoiding part interference and performing maintenance and disassembly operations on the water heater components (such as the burner 4) installed deep in the accommodation cavity 13, thus reducing the maintenance difficulty.

[0039] Reference Figures 4 to 9 , in addition, to prevent dust and impurities from entering the accommodation cavity 13 due to the maintenance opening 15 being in an open state for a long time, in this embodiment, an opening and closing assembly 2 is also provided on the main housing 1 for opening or closing the maintenance opening 15. The opening and closing assembly 2 includes a window frame 21 installed on the side plate 12. The window frame 21 forms a window 211 that communicates with the maintenance opening 15 in alignment. A sealing plate 22 is slidably connected to the window frame 21. When maintenance is required, maintenance personnel can act on the sealing plate 22 to make the sealing plate 22 slide relative to the window frame 21, easily opening the maintenance opening 15. When maintenance is not being carried out, the sealing plate 22 can be slid in the reverse direction to close the maintenance opening 15, ensuring the sealing performance and safety of the water heater.

[0040] Specifically, in this embodiment, a chute 212 is formed on the inner wall of the window 211. The edge of the sealing plate 22 is received in the chute 212 and is slidably connected to the chute 212. A stop block 221 is provided on the edge of the sealing plate 22. A first limiting surface 23 is provided on the moving path of the sealing plate 22 sliding relative to the chute 212. The first limiting surface 23 can limit the sealing plate 22 by abutting against the stop block 221 when the sealing plate 22 slides to the limit position, preventing the sealing plate 22 from further sliding and disengaging from the window frame 21.

[0041] Reference Figure 6, in this embodiment, a limiting block 24 is detachably connected in the sliding groove 212 through a threaded fastener, and the first limiting surface 23 is formed on the limiting block 24. During actual production, the sealing plate 22 can be first slidably clamped into the sliding groove 212 of the window 211, and then the limiting block 24 is inserted into the sliding groove 212, and the limiting block 24 is tightly connected to the window frame 21 through a threaded fastener, so as to facilitate the installation and disassembly of the sealing plate 22 during actual production.

[0042] Considering that the kitchen layout of current households is becoming more and more compact, and water heaters are generally installed at a higher position. In this regard, on the basis of the design of "the sealing plate 22 slides relative to the window frame 21 to open and close the window 211", this embodiment further limits the sliding direction and opening and closing orientation of the sealing plate 22. Specifically: the sliding groove 212 extends longitudinally on the inner wall of the window 211 and penetrates the bottom of the window frame 21, and the sealing plate 22 slides downward relative to the sliding groove 212 to open the maintenance port 15. Through the above technical solution, when the water heater is installed at a high place, the downward sliding design makes it easier for maintenance personnel to operate, without having to lift or laterally move the sealing plate 22 with effort, and the sealing plate 22 can continuously stay at a lower position under its own gravity, keeping the window 211 open and avoiding accidental closing of the window 211. On the contrary, to ensure that the sealing plate 22 can be stably fixed at a higher position to close the window 211, in this embodiment, the bottom end of the sealing plate 22 is detachably connected to the side plate 12.

[0043] Of course, the implementation structure of the detachable connection between the bottom end of the sealing plate 22 and the side plate 12 is diverse. For example, threaded fasteners such as bolts and screws can pass through the bottom end of the sealing plate 22 and the side plate 12 to tightly and detachably connect the sealing plate 22 to the side plate 12, so that the sealing plate 22 can be stably positioned at the upstream of the sliding track of the sliding groove 212 to close the window 211. Although the detachable connection of the sealing plate 22 and the side plate 12 through threaded fasteners has a simple structure and low production cost, since the water heater is usually installed at a high position, it is inconvenient to install and disassemble during the maintenance process.

[0044] In this regard, this embodiment provides another preferred implementation structure for "detachably connecting the bottom end of the sealing plate 22 to the side plate 12", specifically: a movable groove 222 is provided at the bottom end of the sealing plate 22, and a connection knob 223 is rotatably movably inserted in the movable groove 222. A connection plug 224 is provided at one end of the connection knob 223 close to the side plate 12, and a limiting groove 16 is formed on the side plate 12 for the connection plug 224 to fit through. When the water heater does not need to be repaired, the maintenance personnel only need to rotate the connection knob 223 to align the connection plug 224 with the limiting groove 16, and then apply a thrust to the connection knob 223 to drive the connection knob 223 to slide relative to the movable groove 222, so that the connection plug 224 is inserted through the limiting groove 16, and the outer wall of the connection knob 223 abuts against the limiting groove 16 to support and position the sealing plate 22, so that the sealing plate 22 can be continuously positioned at a higher position of the sliding groove 212 to close the window 211. During this period, by continuously rotating the connection knob 223, the connection plug 224 can be deviated from the limiting groove 16 and abuts against the inner wall of the side plate 12, thereby limiting the connection knob 223 to prevent the connection knob 223 from accidentally disengaging from the limiting groove 16. Correspondingly, during maintenance, only need to rotate the connection knob 223 again to align the connection plug 224 with the limiting groove 16 again, and then pull out the connection knob 223 outward so that the connection plug 224 passes through the limiting groove 16, and the sealing plate 22 can be detached from the side plate 12 and restored to the slidable state, and can slide downward to open the window 211.

[0045] Reference Figure 7 、 Figure 8 , to achieve the rapid alignment of the connection plug 224 and the limiting groove 16, in this embodiment, the movable groove 222 is formed with a second limiting surface 225. During use, the second limiting surface 225 can circumferentially abut against the connection knob 223 to limit the rotation trajectory of the connection knob 223, so that the connection plug 224 can be quickly and accurately aligned with the limiting groove 16, facilitating the insertion or passing through of the connection plug 224 into or out of the limiting groove 16, and facilitating the maintenance personnel to complete the fixing and disassembly operations of the sealing plate 22 in a short time, improving the maintenance convenience. In this embodiment, the second limiting surface 225 is integrally formed on the inner wall of the movable groove 222. Of course, the second limiting surface 225 can also be independently formed on the sealing plate 22.

[0046] Reference Figure 5 、 Figure 6, In addition, in this embodiment, a sealing strip 213 is provided on the window frame 21. The sealing strip 213 is closed-loop around at least part of the window 211 and is used to seal and abut against the sealing plate 22. By providing the sealing strip 213 on the window frame 21 and forming a sealing barrier by the closed-loop seal abutting against the sealing plate 22, the connection sealing performance between the sealing plate 22 and the window 211 can be greatly improved, preventing the water vapor and gas inside the water heater from leaking out through the maintenance opening 15. At the same time, the good sealing performance helps to reduce the heat loss inside the water heater and prevent external impurities such as dust and moisture from entering the water heater through the maintenance opening 15, causing corrosion and damage to the internal components of the equipment. It can also play a sound insulation effect, reducing the vibration and noise transmitted during the operation of the water heater.

[0047] In this embodiment, the sealing strip 213 is preferably made of materials such as rubber, silica gel, and TPE, which have good elasticity and can be well abutted against the outer wall surface of the sealing plate 22 during installation, so as to form an almost seamless sealing interface and effectively prevent water, gas or other liquids from leaking through the gap between the cover plate and the maintenance opening 15.

[0048] In addition, referring to Figure 9 , to further prevent the heat inside the water heater from diffusing outwards, in this embodiment, one end of the sealing plate 22 close to the side plate 12 is recessed inward to form an installation groove 226. The area of the installation groove 226 basically covers the maintenance opening 15, and a heat insulation layer 227 is installed in the installation groove 226. The sealing plate 22 is recessed inward to form the second installation groove 226, which helps to enhance the structural strength of the sealing plate 22 while providing a installation space for the heat insulation layer 227. The heat insulation layer 227 is made of heat insulation materials such as foam and ceramic fiber, which can reduce the heat transfer through the sealing plate 22 to the outside and improve the thermal efficiency.

[0049] Embodiment Two:

[0050] A gas water heater includes the water heater housing structure as in Embodiment One. A burner 4, a blower assembly 5 and a heat exchanger assembly 6 are installed in its accommodation cavity 13. One end of the burner 4 has a detachable side sealing plate 7, and the maintenance opening 15 is aligned with the side sealing plate 7. Through the above solution, when performing maintenance and detection on the gas water heater, the window 211 can be opened by sliding the sealing plate 22 to open the maintenance opening 15, and the maintenance personnel can directly access the burner 4 laterally through the maintenance opening 15 to disassemble the side sealing plate 7 of the burner 4, improving the maintenance efficiency.

[0051] Note that the above is only the preferred embodiment of the present utility model and the applied technical principles. Those skilled in the art will understand that the present utility model is not limited to the specific embodiments here, and various obvious changes, re-adjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present utility model. Therefore, although the present utility model has been described in more detail through the above embodiments, the present utility model is not limited to the above embodiments only. Without departing from the concept of the present utility model, more other equivalent embodiments can be included, and the scope of the present utility model is determined by the scope of the appended claims.

Claims

1. A water heater housing structure, characterized in that: include: A bottom plate (11), a front panel (3), and a side plate (12) surrounding and connected to the edge of the bottom plate (11); The bottom plate (11) and the side plate (12) together form a receiving cavity (13); The side plate (12) extends outward from the bottom plate (11) to enclose a sealing opening (14) connected to the accommodating cavity (13); The front panel (3) is detachably connected to the sealing opening (14); The side plate (12) is provided with a maintenance port (15) connected to the accommodating cavity (13); An opening and closing assembly (2) comprises a window frame (21) mounted on the side panel (12) and a sealing plate (22) slidably connected to the window frame (21); the window frame (21) is provided with a window (211) aligned and connected to the maintenance port (15); the sealing plate (22) slides relative to the window frame (21) to open or close at least a portion of the window (211).

2. The water heater housing structure according to claim 1, characterized in that: The window frame (21) is provided with a slide groove (212), the sealing plate (22) is slidably connected to the slide groove (212), a stopper (221) is provided at the edge of the sealing plate (22), and a first limiting surface (23) for abutting against the stopper (221) is provided on the movement path of the sealing plate (22) sliding relative to the slide groove (212).

3. The water heater housing structure according to claim 2, characterized in that: It also includes a limit block (24), wherein the limit block (24) is detachably connected to the slide groove (212) via a threaded fastener, and the first limit surface (23) is formed on the limit block (24).

4. The water heater housing structure according to claim 2, characterized in that: The slide groove (212) extends longitudinally through the bottom of the window frame (21); the sealing plate (22) slides downward relative to the slide groove (212) to open the maintenance opening (15); and the bottom end of the sealing plate (22) is detachably connected to the side plate (12).

5. The water heater housing structure according to claim 4, characterized in that: The bottom end of the sealing plate (22) is connected to the side plate (12) via a threaded fastener.

6. The water heater housing structure according to claim 4, characterized in that: A movable groove (222) is provided at the bottom end of the sealing plate (22), a connecting knob (223) is rotatably provided in the movable groove (222), a connecting plug (224) is provided at one end of the connecting knob (223) close to the side plate (12), and a limiting groove (16) is formed on the side plate (12) for the connecting plug (224) to fit through.

7. The water heater housing structure according to claim 6, characterized in that: The movable groove (222) is formed with a second limiting surface (225), and the second limiting surface (225) can limit the rotation trajectory of the connecting knob (223) by circumferentially abutting against the connecting knob (223).

8. The water heater housing structure according to claim 1, characterized in that: The window frame (21) is provided with a sealing strip (213), the sealing strip (213) surrounds at least a portion of the window (211) in a closed loop and is in sliding contact with the sealing plate (22).

9. The water heater housing structure according to claim 1, characterized in that: One end of the sealing plate (22) close to the side plate (12) is recessed inward to form a mounting groove (226), and a heat insulation layer (227) is installed in the mounting groove (226).

10. A gas water heater, characterized in that: It comprises a water heater shell structure as shown in any one of claims 1 to 9, wherein a burner (4), a fan assembly (5) and a heat exchanger assembly (6) are installed in the accommodating cavity (13), one end of the burner (4) has a detachable side sealing plate (7), and the maintenance port (15) is aligned with the side sealing plate (7).

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