CN219868544U - Water heater - Google Patents

Abstract

The utility model discloses a water heater, which comprises an electricity-proof wall cover, a water heater and a water heater, wherein the electricity-proof wall cover is buckled on a shell; the hiding cover is buckled on the electricity-proof wall cover, and a containing cavity is formed between the hiding cover and the electricity-proof wall cover and used for hiding a water inlet pipe and a water outlet pipe of the water heater; the electric wall cover is characterized in that a first mounting structure and a second mounting structure are arranged at the joint of the electric wall cover and the hidden cover and along the two sides of the extending direction of the shell, and the first mounting structure and the second mounting structure are used for fixing the hidden cover on the electric wall cover. According to the utility model, the first mounting structure and the second mounting structure are arranged at the joint of the electric wall cover and the hiding cover along the two sides of the extending direction of the shell, so that after the hiding cover and the electric wall cover are assembled, the water inlet and outlet pipe can be hidden, the aesthetic property of the water heater is improved, the waterproof effect is improved, meanwhile, the complexity of connecting the hiding cover and the electric wall cover is reduced, and the mounting process is simplified.

Description

Water heater

Technical Field

The utility model belongs to the field of water heaters, and particularly relates to a water heater.

Background

The electric-proof wall cover is a plastic piece arranged at the front end of a barrel in a water heater shell and mainly has two functions, on one hand, the electric-proof wall cover is used for hiding a connecting component connected with a water inlet pipe and a water outlet pipe, and on the other hand, the electric-proof wall cover is used for fixing a display board and controlling an operation panel. In order to increase aesthetic property, what prevent electric wall cover had in the current scheme hides the cover, prevents electric wall cover and hide when cover the installation, has established a row of through-hole on preventing electric wall cover, then hides the link of cover and be used for fixing above the through-hole, prevents electric wall cover both ends and has two oval buckles to block the rear end of hiding the cover.

The Chinese patent with the application number of CN204593885U discloses an electric water heater with an anti-electricity wall cover, which comprises a shell middle barrel and the anti-electricity wall cover, wherein a plurality of clamping claws are arranged at the upper edge of the inner wall of a front side plate of the anti-electricity wall cover, a plurality of clamping claws are arranged at the lower edge of the inner wall of a bottom side plate, clamping holes which are arranged in one-to-one correspondence with the clamping claws are arranged on the shell middle barrel, 1 or 2 screw holes are also arranged on the bottom side plate, and screw holes are correspondingly arranged on the shell middle barrel; the anti-electricity wall cover and the barrel in the shell are matched and fixed by the clamping claw and the clamping hole, and are fixed by the screw at the screw hole. The utility model can reduce the number of the fixing screws, is easy to install, improves the production efficiency, ensures the fit clearance between the electricity-proof wall cover and the barrel in the shell, and can improve the appearance effect of the water heater by reducing the number of the screws. However, the through hole is communicated with the inside of the electricity-proof wall cover, so that the inside of the electricity-proof wall cover is easy to enter water, and meanwhile, the structure is complex, the disassembly is inconvenient, and the electricity-proof wall cover is easy to damage.

The present utility model has been made in view of this.

Disclosure of Invention

The utility model aims to solve the technical problem of overcoming the defects of the prior art, and provides the water heater, wherein the first mounting structure and the second mounting structure are arranged at the joint of the electric wall cover and the hidden cover along the two sides of the extending direction of the shell, so that the effect of hiding the inlet and outlet pipe assembly is achieved after the hidden cover is mounted, the attractiveness of the water heater is improved, the waterproof effect is improved, meanwhile, the complexity of connecting the hidden cover and the electric wall cover is reduced, and the mounting process is simplified.

In order to solve the technical problems, the utility model adopts the basic conception of the technical scheme that: a water heater comprises a shell and a liner arranged in the shell, wherein the shell has a certain extension length, and the liner is arranged in the shell in an extending way;

the electricity-proof wall cover is buckled on the shell;

the hiding cover is buckled on the electricity-proof wall cover, and a containing cavity is formed between the hiding cover and the electricity-proof wall cover and used for hiding a water inlet pipe and a water outlet pipe of the water heater;

the electric wall cover is characterized in that a first mounting structure and a second mounting structure are arranged at the joint of the electric wall cover and the hidden cover and along the two sides of the extending direction of the shell, and the first mounting structure and the second mounting structure are used for fixing the hidden cover on the electric wall cover.

Further, the first mounting structure comprises a first mounting part and a second mounting part which are rotatably connected;

the first installation department sets up on preventing electric wall cover, the second installation department sets up on hiding the cover, the rotatable support of second installation department is on the third installation department.

Further, the first mounting part comprises a first limiting protrusion, and the first limiting protrusion is arranged on the electricity-proof wall cover in a protruding manner along the extending direction of the shell;

the second installation part comprises a rotation part, is recessed or penetrates through two side walls of the hiding cover along the extending direction of the shell, and is rotatably installed on the first limiting protrusion.

Further, the first limiting protrusion is a limiting column, and the rotating part is provided with a rotating protrusion extending from the two side walls of the hiding cover to the end face of the electricity-proof wall cover, which is close to the electricity-proof wall cover, towards the electricity-proof wall cover; the rotating part is also provided with a mounting hole, and the limit post is rotatably arranged in the mounting hole.

Further, the second mounting structure comprises a third mounting part and a fourth mounting part, and the third mounting part and the fourth mounting part are detachably and fixedly connected;

the third installation department sets up on preventing electric wall cover, the fourth installation department sets up on hiding the cover, but the third installation department joint is in on the fourth installation department.

Further, the second mounting portion includes,

the second limiting protrusion is arranged on the electricity-proof wall cover along the extending direction of the shell;

and the limiting grooves are arranged on two side walls of the hiding cover along the extending direction of the shell and are matched with the second limiting protrusions.

Further, the second limiting protrusion is a buckle, the limiting groove is a clamping groove, and after the buckle and the clamping groove are assembled by the first mounting structure, the buckle is clamped in the clamping groove.

Further, the anti-electricity wall cover is buckled at the lower part of the shell, the hidden cover is transversely extended and buckled on the bottom wall of the anti-electricity wall cover, the rear side of the hidden cover is provided with an opening,

the first installation part and the second installation part are close to the opening, and the third installation part and the fourth installation part are far away from the opening.

Further, a concave part is arranged on the bottom wall of the electricity-proof wall cover, and the hidden cover is buckled in the concave part;

the first installation part and the third installation part are arranged on the two side walls of the concave part in a protruding way towards the inside of the concave part.

Further, the concave part comprises a concave part,

the first concave part is concavely arranged on the bottom wall of the electricity-proof wall cover;

the second concave part is concavely arranged in the first concave part;

the first concave part and the second concave part are in a ladder shape, and the first installation part and the third installation part are convexly arranged on two side walls of the first concave part along the extending direction of the shell;

the first concave part and the second concave part are provided with step surfaces, the step surfaces are provided with avoidance grooves, and the rotating parts extend into the avoidance grooves and can rotate.

By adopting the technical scheme, compared with the prior art, the utility model has the following beneficial effects.

(1) According to the utility model, the first mounting structure and the second mounting structure are arranged at the joint of the electricity-proof wall cover and the hidden cover along the extending direction of the shell, so that the effect of hiding the inlet and outlet pipe assembly after the hidden cover is mounted is achieved, the aesthetic property of the water heater is improved, the waterproof effect is improved, meanwhile, the complexity of connecting the hidden cover and the electricity-proof wall cover is reduced, and the mounting process is simplified.

(2) The first installation part and the second installation part in the first installation structure can be rotatably installed; and the third installation part and the fourth installation part in the second installation structure are clamped, so that a user can more conveniently install and detach the hidden cover.

The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:

FIG. 1 is a schematic view of a waterproof wall cover and a hidden cover of a water heater according to the present utility model;

FIG. 2 is a schematic view of the utility model at another angle to FIG. 1;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2 in accordance with the present utility model;

FIG. 4 is a schematic view of the hidden cover structure of the present utility model;

FIG. 5 is a schematic view of the structure of the anti-electricity wall cover of the present utility model.

In the figure: 1. an electricity-proof wall cover; 11. a first concave portion; 111. an avoidance groove; 12. a second concave portion; 13. a limit part; 14. opening holes; 15. a fixing part; 2. a concealing cover; 21. reinforcing ribs; 3. a first mounting structure; 31. a first mounting portion; 311. a limit column; 32. a second mounting portion; 321. a rotating part; 3211. a mounting hole; 4. a second mounting structure; 41. a third mounting portion; 411. a buckle; 42. a fourth mounting portion; 421. a clamping groove; 5. an opening.

It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 5, a water heater according to the present utility model includes a housing (not shown), a liner (not shown), a power-proof wall cover 1 and a hidden cover 2.

The inner container is arranged in the shell, the shell has a certain extension length, and the inner container is arranged in the shell in an extending way.

The electricity-proof wall cover 1 is buckled on the shell.

The hidden cover 2 is buckled on the electricity-proof wall cover 1, and a containing cavity is formed between the hidden cover 2 and the electricity-proof wall cover 1 and used for hiding water inlet and outlet pipes of the water heater.

The connection part of the electricity-proof wall cover 1 and the hidden cover 2 is provided with a first mounting structure 3 and a second mounting structure 4 along two sides of the extending direction of the shell, and the first mounting structure and the second mounting structure are used for fixing the hidden cover 2 on the electricity-proof wall cover 1.

According to the utility model, the first mounting structure 3 and the second mounting structure 4 are arranged at the joint of the electricity-proof wall cover 1 and the hidden cover 2 along the two sides of the extending direction of the shell, so that the effect of hiding the inlet and outlet pipe assembly after the hidden cover 2 is mounted is achieved, the aesthetic property of the water heater is improved, the waterproof effect is improved, meanwhile, the complexity of connecting the hidden cover 2 and the electricity-proof wall cover 1 is reduced, and the mounting process is simplified.

Further, the first mounting structure 3 includes a first mounting portion 31 and a second mounting portion 32, and the first mounting portion 31 and the second mounting portion 32 are rotatably connected.

The first mounting part 31 is arranged on the electricity-proof wall cover 1, the second mounting part 32 is arranged on the hidden cover 2, and the second mounting part 32 is rotatably supported on the first mounting part 31.

As shown in fig. 2 to 5, the first mounting structure 3 is divided into the first mounting part 31 and the second mounting part 32, and the first mounting part 31 is arranged on the electricity-proof wall cover 1 and the second mounting part 32 is arranged on the hidden cover 2 to be rotatably connected, when the hidden cover 2 is buckled on the electricity-proof wall cover 1, the second mounting part 32 is rotatably supported and mounted on the first mounting part 31, so that the better support of the hidden cover 2 is fixed on the electricity-proof wall cover 1, and the hidden cover is convenient to install and detach.

As shown in fig. 3 to 5, further, the first mounting portion 31 includes a first limit protrusion protruding on the electricity-proof wall cover 1 along the extending direction of the housing.

The second mounting portion 32 includes a rotating portion 321, which is recessed or penetrating through two sidewalls of the hiding cover 2 along an extending direction of the housing, and is rotatably mounted on the first limiting protrusion.

The first mounting part 31 is provided as the first limiting protrusion, the second mounting part 32 is provided as the rotating part 321, and the rotating part 321 is arranged on the hiding cover 2 in a penetrating way, so that the first limiting protrusion can penetrate into the rotating part 321 when the rotating part 321 is matched with the first limiting protrusion, the rotating part 321 is rotatably supported on the first limiting protrusion, and the first limiting protrusion limits the rotating part 321.

As shown in fig. 3, specifically, the first limiting protrusion is a limiting post 311, and the rotating portion 321 has a rotating protrusion extending from the end surface of the two side walls of the hidden cover 2, which is close to the electricity-proof wall cover 1, toward the electricity-proof wall cover 1. The rotating portion 321 is further provided with a mounting hole 3211, and the limiting post 311 is rotatably mounted in the mounting hole 3211. By setting the first limiting protrusion to be in the shape of the limiting post 311, the first limiting protrusion is convenient to be matched with the mounting hole 3211 on the rotating portion 321, so that the hidden cover 2 can rotate relative to the electricity-proof wall cover 1.

When the anti-electricity wall cover is installed, firstly, the hidden cover 2 is buckled on the anti-electricity wall cover 1, the limit post 311 is connected with the installation hole 3211 in a matched mode, the limit post 311 penetrates out of the installation hole 3211 and then is buckled on the anti-electricity wall cover 1 in a rotating mode, meanwhile, after the first installation structure 3 is installed in place, the second installation structure 4 fixes the hidden cover 2 on the anti-electricity wall cover 1, and installation and fixation of the hidden cover 2 are achieved.

Further, the second mounting structure 4 includes a third mounting portion 41 and a fourth mounting portion 42.

The third mounting portion 41 and the fourth mounting portion 42 are detachably and fixedly connected.

The third mounting portion 41 is disposed on the electricity-proof wall cover 1, the fourth mounting portion 42 is disposed on the hiding cover 2, and the third mounting portion 41 may be clamped to the fourth mounting portion 42.

Through divide into third installation department 41, fourth installation department 42 with second mounting structure 4, and will third installation department 41 sets up on preventing electric wall cover 1, fourth installation department 42 sets up on hiding cover 2, but third installation department 41 joint is in on the fourth installation department 42, but third installation department 41, fourth installation department 42 dismantle fixed connection, the front end that solves among the prior art prevents electric wall cover 1 sets up one row of through-hole, sets up mounting structure for both sides instead, prevents that water from entering into the inside of preventing electric wall cover 1.

Further, the third mounting portion includes a second limiting protrusion, and the fourth mounting portion 42 includes a limiting groove.

The second limiting protrusion is arranged on the electricity-proof wall cover 1 along the extending direction of the shell.

The limiting grooves are formed in the two side walls of the hiding cover 2 along the extending direction of the shell and are matched with the second limiting protrusions.

According to the utility model, the second limiting protrusion is arranged on the anti-electricity wall cover 1, the second limiting protrusion and the first limiting protrusion are both arranged along the extending direction of the shell, the clamping groove 421 is simultaneously arranged on the hiding cover 2 along the extending direction of the shell, the hiding cover 2 and the anti-electricity wall cover 1 are convenient to be matched and installed, meanwhile, when the hiding cover 2 is installed, the first installation structure 3 is firstly assembled, after the limiting post 311 of the first installation part 31 is assembled with the installation hole 3211 on the rotating part 321 of the second installation part 32, the hiding cover 2 is rotatably installed on the anti-electricity wall cover 1, and the second limiting protrusion and the limiting groove are used for fixing, so that the stability of the hiding cover 2 installed on the anti-electricity wall cover 1 is improved.

Specifically, the second limiting protrusion is a buckle 411, the limiting groove is a clamping groove 421, and after the buckle 411 and the clamping groove 421 are assembled by the first mounting structure 3, the buckle 411 is clamped in the clamping groove 421.

In the utility model, when the hidden cover 2 is installed, the first installation structure 3 is installed, and the second installation structure 4 is installed, specifically, the rotating part 321 on the hidden cover 2 is rotatably supported and installed on the limiting post 311 through the installation hole 3211, so that the hidden cover 2 can rotate relative to the electricity-proof wall cover 1, and then the buckle 411 is clamped in the clamping groove 421 in the rotating process, so that the hidden cover 2 is installed.

As shown in fig. 1 to 2, further, the electricity-proof wall cover 1 is fastened to the lower portion of the housing, the hiding cover 2 is transversely extended and fastened to the bottom wall of the electricity-proof wall cover 1, and an opening 5 is provided at the rear side of the hiding cover 2.

The first and second mounting portions 31, 32 are disposed near the opening 5, and the third and fourth mounting portions 41, 42 are disposed away from the opening 5.

Through detaining the electricity-proof wall cover 1 and establishing the lower part of shell sets up opening 5 in hiding the rear side of cover 2, is hiding outlet pipe and inlet tube on the water heater, conveniently stretches out from opening 5 direction to with external connection, be close to first installation department 31, second installation department 32 set up on the opening 5, third installation department 41, four installation department principles opening 5 sets up, conveniently hides cover 2 and installs on electricity-proof wall cover 1, and cancel the through-hole that is used for installing hiding cover 2 of a row that electricity-proof wall cover 1 is relative with opening 5, prevent that water from getting into inside the electricity-proof wall cover 1.

Further, a concave part is arranged on the bottom wall of the electricity-proof wall cover 1, and the hidden cover 2 is buckled in the concave part.

The first mounting portion 31 and the third mounting portion 41 are provided on both side walls of the recess so as to protrude into the recess.

The utility model improves the hiding effect of the hiding cover 2 mounted on the anti-electricity wall cover 1 by arranging the concave part on the bottom wall of the anti-electricity wall cover 1 and buckling the hiding cover 2 in the concave part, and simultaneously, the first mounting part 31 and the third mounting part 41 are arranged on the two side walls of the concave part in a protruding way towards the inside of the concave part, so that the second mounting part 32 and the fourth mounting part 42 on the two side walls of the hiding cover 2 are convenient to be matched with the first mounting part 31 and the second mounting part 32.

As shown in fig. 3 to 5, specifically, when the bottom wall of the electricity-proof wall cover 1 is provided with a recess, and the hidden cover 2 is fastened in the recess, when the hidden cover 2 is installed, first, the first mounting portion 31 on the electricity-proof wall cover 1 and the second mounting portion 32 on the hidden cover 2 are rotatably arranged in a matching manner, that is, the rotating portion 321 on the hidden cover 2 is assembled together through the mounting hole 3211, the limit post 311 on the electricity-proof wall cover 1 is assembled together, the hidden cover 2 is rotatable relative to the electricity-proof wall cover 1, then, in the rotating process of the hidden cover 2, the fourth mounting portion 42 clamping groove 421 on the hidden cover 2 and the third mounting portion 41 clamping groove 411 on the electricity-proof wall cover 1 are fastened together, so that the hidden cover 2 is fixed on the electricity-proof wall cover 1, and the aesthetic property of the water heater is increased.

Further, the concave parts comprise a first concave part 11 and a second concave part 12.

The first concave part 11 is concavely arranged on the bottom wall of the electricity-proof wall cover 1.

The second recess 12 is concavely disposed in the first recess 11.

The first and second concave portions 11, 12 are stepped, and the first and third mounting portions 31, 41 are disposed on two sidewalls of the first concave portion 11 along the extending direction of the housing.

The first recess 11 and the second recess 12 are formed with step surfaces, the step surfaces are provided with avoiding grooves 111, and the rotating portion 321 extends into the avoiding grooves 111 to rotate.

As shown in fig. 5, the first recess 11 is formed in the bottom wall of the anti-electricity wall cover 1 by setting the recess on the anti-electricity wall cover 1 to be a first recess 11, the second recess 12 is formed in the first recess 11, and the hiding cover 2 is fastened to the first recess 11, so that a containing cavity is formed between the first recess 11 and the hiding cover 2, and other components are convenient to be hidden and mounted.

Specifically, through setting up first depressed part 11, 12 layers of ladder of second depressed part, the diapire of first depressed part 11 forms the step face, first installation department 31, the protruding setting of third installation department 41 first depressed part 11 is followed on the both sides wall of the extending direction of shell, the convenience with second installation department 32 on hiding cover 2 both sides wall, the cooperation installation of fourth installation department 42 to through set up dodging groove 111 on the step face, make rotating part 321 on hiding cover 2 and spacing post 311 swivelling joint back, avoid the step to cause to block when being equivalent to spacing post 311 swivelling in the face of rotating part 321, improve the installation convenience and the rotatory effect of hiding cover 2.

The mounting structure in the utility model is suitable for two cases of covering 2 with a hidden cover and covering 2 without a hidden cover.

The step surface is also provided with a limiting part 13, and the limiting part 13 extends from the step surface to the direction of the hiding cover 2; the first mounting structure 3 and the second mounting structure 4 are arranged on two sides of the limiting part 13, so that the mounting stability of the hidden cover 2 is further improved.

Further, an opening 14 is further provided on the bottom wall of the second recess 12 for installing a water inlet and outlet pipe. The electricity-proof wall cover 1 is provided with a plurality of fixing parts 15 for installing the electricity-proof wall cover 1 on the water heater shell.

The inner peripheral wall of the hiding cover 2 is also provided with a plurality of reinforcing ribs 21, so that the strength of the hiding cover 2 is increased, the hiding cover 2 is prevented from being deformed in the long-time use or frequent disassembly process, and the attractiveness and the use effect of the hiding cover 2 are improved.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited to the above-mentioned embodiment, but is not limited to the above-mentioned embodiment, and any simple modification, equivalent change and modification made by the technical matter of the present utility model can be further combined or replaced by the equivalent embodiment without departing from the scope of the technical solution of the present utility model.

Claims (10)

1. A water heater, characterized in that: the device comprises a shell and an inner container arranged in the shell, wherein the shell has a certain extension length, and the inner container is arranged in the shell in an extending way;

the electricity-proof wall cover is buckled on the shell;

the hiding cover is buckled on the electricity-proof wall cover, and a containing cavity is formed between the hiding cover and the electricity-proof wall cover and used for hiding a water inlet pipe and a water outlet pipe of the water heater;

the electric wall cover is characterized in that a first mounting structure and a second mounting structure are arranged at the joint of the electric wall cover and the hidden cover and along the two sides of the extending direction of the shell, and the first mounting structure and the second mounting structure are used for fixing the hidden cover on the electric wall cover.

2. A water heater as defined in claim 1, wherein: the first mounting structure comprises a first mounting part and a second mounting part, and the first mounting part and the second mounting part are rotatably connected;

the first installation department sets up on preventing electric wall cover, the second installation department sets up on hiding the cover, the rotatable support of second installation department is on first installation department.

3. A water heater as claimed in claim 2, wherein: the first mounting part comprises a first limiting protrusion, and the first limiting protrusion is arranged on the electricity-proof wall cover in a protruding manner along the extending direction of the shell;

the second installation part comprises a rotation part, is recessed or penetrates through two side walls of the hiding cover along the extending direction of the shell, and is rotatably installed on the first limiting protrusion.

4. A water heater as claimed in claim 3, wherein: the first limiting protrusion is a limiting column, and the rotating part is provided with a rotating protrusion which is arranged to extend from the end face, close to the electricity-proof wall cover, of the two side walls of the hiding cover to the electricity-proof wall cover; the rotating part is also provided with a mounting hole, and the limit post is rotatably arranged in the mounting hole.

5. A water heater as defined in claim 1, wherein: the second installation structure comprises a third installation part and a fourth installation part which are detachably and fixedly connected;

the third installation department sets up on preventing electric wall cover, the fourth installation department sets up on hiding the cover, but the third installation department joint is in on the fourth installation department.

6. A water heater as defined in claim 5, wherein: the third installation part comprises a second limiting protrusion which is arranged on the electricity-proof wall cover along the extending direction of the shell;

the fourth installation department includes the spacing groove, follows the extending direction setting of shell is in on hiding the both sides wall of cover, with the spacing protruding cooperation setting of second.

7. A water heater as defined in claim 6, wherein: the second limiting protrusion is a buckle, the limiting groove is a clamping groove, and the buckle and the clamping groove are clamped in the clamping groove after the first mounting structure is assembled.

8. A water heater as claimed in any one of claims 2 to 7, wherein: the electricity-proof wall cover is buckled at the lower part of the shell, the hidden cover is transversely extended and buckled on the bottom wall of the electricity-proof wall cover, the rear side of the hidden cover is provided with an opening,

the first installation part, the second installation part are close to the opening setting, and the third installation part, the fourth installation part are kept away from the opening setting.

9. A water heater as defined in claim 8, wherein: the bottom wall of the electricity-proof wall cover is provided with a concave part, and the hidden cover is buckled in the concave part;

the first installation part and the third installation part are arranged on the two side walls of the concave part in a protruding way towards the inside of the concave part.

10. A water heater as defined in claim 9, wherein: the recess portion may comprise a portion of a metal,

the first concave part is concavely arranged on the bottom wall of the electricity-proof wall cover;

the second concave part is concavely arranged in the first concave part;

the first concave part and the second concave part are in a ladder shape, and the first installation part and the third installation part are convexly arranged on two side walls of the first concave part along the extending direction of the shell;

the first concave part and the second concave part are provided with step surfaces, the step surfaces are provided with avoidance grooves, and the rotating parts extend into the avoidance grooves and can rotate.