CN220471895U

CN220471895U - Hanger and water heater

Info

Publication number: CN220471895U
Application number: CN202322038422.5U
Authority: CN
Inventors: 古志鹏; 荆彦涛; 田海燕; 张国庆; 胡常青; 杜志杰
Original assignee: Haier Smart Home Co Ltd; Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd
Current assignee: Haier Smart Home Co Ltd; Qingdao Economic and Technological Development Zone Haier Water Heater Co Ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2024-02-09
Anticipated expiration: 2033-07-31

Abstract

The utility model discloses a hanging rack and a water heater, wherein the hanging rack is used for carrying out top hanging type installation on a product, the hanging rack comprises a fixing seat and a telescopic part, the fixing seat is fixed on the ceiling of a space where the product to be hung is located, a slide way part is arranged in the fixing seat, a plurality of stop positions are formed on the slide way part, the telescopic part is a scissor-fork type telescopic frame, the top of the telescopic part is in sliding fit with the slide way part, the bottom of the telescopic part is provided with the product, the top of the telescopic part slides along the slide way part, the telescopic part contracts or stretches, the product moves upwards or downwards, and the top of the telescopic part is positioned at the stop positions so as to fix the position of the product. The scheme can realize the overhead hidden installation of the water heater, and the height position of the water heater after installation is adjustable, so that the water heater is convenient to install and use.

Description

Hanger and water heater

Technical Field

The utility model relates to the technical field of water heaters, in particular to a hanging frame and a water heater.

Background

The existing water heater is generally and fixedly arranged on an indoor wall, a hanging frame is arranged on the back side of the water heater, an expansion bolt hook is arranged on the wall, and the hanging frame of the water heater is hung on the hanging frame to be fixed. The disadvantage of this fixing is that: after-sales master is very laborious when aiming at the hanging rack and the hanging hook, and because the fixing mode needs a large space for installation, hidden installation is difficult to achieve; in addition, the installation position of the water heater is fixed once, so that the water heater is difficult to readjust, and holes are left in the wall when different models are installed next time.

The above information disclosed in this background section is only for enhancement of understanding of the background section of the application and therefore it may not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

Aiming at the problems pointed out in the background art, the utility model provides a hanging frame and a water heater, which realize the overhead hidden installation of the water heater, and the height position of the water heater after the installation is adjustable, thereby being convenient for installation and use.

In order to achieve the aim of the utility model, the utility model is realized by adopting the following technical scheme:

the utility model provides a hanging frame, which is used for carrying out top hanging type installation on products, and comprises the following components:

the fixing seat is fixed on the shed roof of the space where the product to be hung is located, a slide way part is arranged in the fixing seat, and a plurality of stop positions are formed on the slide way part;

the telescopic part is a scissor fork type telescopic frame, the top of the telescopic part is in sliding fit with the slideway part, and the bottom of the telescopic part is provided with the product;

the top of the telescopic part slides along the slideway part, the telescopic part contracts or stretches, and the product moves upwards or downwards;

the top of the telescopic part is positioned at the stop position so as to fix the position of the product.

In some embodiments of the present application, the telescopic portion includes a first folding rod portion and a second folding rod portion, the first folding rod portion includes a plurality of first connecting rods, the plurality of first connecting rods are connected in a head-to-tail rotation manner in sequence, the second folding rod portion includes a plurality of second connecting rods, the plurality of second connecting rods are connected in a head-to-tail rotation manner in sequence, and the corresponding first connecting rods are connected in a rotation manner with the second connecting rods at the intersection positions;

the top of one of the first folding rod part and the second folding rod part is in sliding connection with the slideway part, the top of the other one of the first folding rod part and the second folding rod part is in rotary connection with the slideway part, and the bottom of any one of the first folding rod part and the second folding rod part is provided with the product.

In some embodiments of the present application, the slide portion includes first slide and second slide, first slide the second slide is in the orientation respectively have uncovered at the bottom side of fixing base, the top of first folding pole portion is passed through uncovered stretch into in the first slide, with first slide sliding connection, second folding pole portion is passed through uncovered stretch into in the second slide, with the second slide rotates to be connected.

In some embodiments of the present application, a protruding portion is disposed on an inner side wall surrounding the first slideway, the protruding portion protrudes toward another opposite inner side wall surrounding the first slideway, the protruding portion forms a protruding portion and a recessed portion on a top edge of a top wall facing the first slideway, and the protruding portion and the recessed portion are plural and are sequentially arranged at intervals;

the top of the first folding rod part slides along the first gap, and the top of the first folding rod part is positioned in the concave part in a stopping position.

In some embodiments of the present application, one end of the protruding portion along the length direction thereof is connected with a side end wall of the first slideway far away from the second slideway, a second gap is formed between the other end of the protruding portion along the length direction thereof and a side end wall of the first slideway near the second slideway, and the first gap is communicated with the second gap;

the bottom side opening of the first slideway comprises a first opening and a second opening which are communicated, the width of the first opening is smaller than that of the second opening, the first opening is communicated with the first gap, and the second opening is communicated with the second gap;

the top of the first folding rod part extends into the first gap through the second opening so as to slide along the first gap.

In some embodiments of the present application, the second gap is provided with a limiting portion, and the limiting portion is used for preventing the first folding rod portion from being separated from the second opening.

In some embodiments of the present application, a rolling portion is disposed on top of the first folding lever portion, and the rolling portion moves along the first gap.

In some embodiments of the present application, the top of the second folding bar portion is rotatably disposed on a side of the second slide away from the first slide.

In some embodiments of the present application, two fixing seats are provided, and a first fixing rod is connected between the two fixing seats;

and one telescopic part is arranged below each fixed seat, and a second fixed rod is connected between the two telescopic parts.

The utility model also provides a water heater, which comprises a water heater body and the hanging frame, wherein the fixing seat is fixed on the shed roof of the space where the water heater body is positioned, the telescopic part is arranged at the top of the water heater body, the telescopic part is contracted or stretched, and the water heater body moves upwards or downwards.

Compared with the prior art, the utility model has the advantages and positive effects that:

the hanging rack is fixedly arranged at the top of the water heater body, and the water heater body is fixed to the ceiling of the space where the water heater body is located through the hanging rack, so that the top hanging type installation of the water heater body is realized.

The hanging rack has a telescopic function. The hanging frame is contracted in the up-down direction, so that the upward movement of the water heater body is realized, and the water heater body moves upwards. The hanging frame stretches in the up-down direction to realize the downward movement of the water heater body, and the water heater body descends. According to user's user demand, through the flexible of stores pylon, with the water heater body regulation to suitable high position department, the user of being convenient for uses.

When the water heater body is installed, the hanging frame is fixedly installed on the shed roof, then the hanging frame is in a stretching state, the bottom of the hanging frame is in a low position, and finally the water heater body is fixedly installed on the bottom of the hanging frame, so that the installation is convenient.

Other features and advantages of the present utility model will become apparent upon review of the detailed description of the utility model in conjunction with the drawings.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic view of a water heater according to an embodiment;

FIG. 2 is a side view of a water heater according to an embodiment;

FIG. 3 is a structural view of a hanger according to an embodiment;

FIG. 4 is a schematic view of the structure of the hanger from the bottom side in accordance with the embodiment;

FIG. 5 is a cross-sectional view of a hanger according to an embodiment;

FIG. 6 is a schematic structural view of a fixing base according to an embodiment;

FIG. 7 is a cross-sectional view of a holder according to an embodiment;

FIG. 8 is a schematic diagram of an assembled structure of a top portion of a first folding lever portion and a rolling portion according to an embodiment;

reference numerals:

10. a water heater body;

20. a hanging rack;

100. a fixing seat; 110. a slideway section; 111. a first slideway, 112, a second slideway; 120. a protruding portion; 121. a boss; 122. a recessed portion; 130. an opening; 131. a first opening, 132, a second opening; 141. a first gap, 142, a second gap; 150. a limit part; 151. a mounting hole;

200. a telescopic part; 210. a first folding lever portion; 211. a first link; 212. a rolling part; 220. a second folding bar portion; 221. a second link;

300. a first fixing rod;

400. a second fixing rod;

500. and (5) mounting a frame.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify 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 therefore should not be construed as limiting the present application.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, 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, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments, or examples, for implementing different features of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the utility model. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present utility model provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

In some embodiments of the present application, a water heater is disclosed, referring to fig. 1 and 2, including a water heater body 10 and a hanger 20, and top hanging type installation of the water heater body 10 is realized through the hanger 20.

The water heater body 10 is an electric water heater, and the specific structure of the electric water heater is not limited in this embodiment.

The hanging frame 20 is fixedly arranged at the top of the water heater body 10, and the water heater body 10 is fixed to the ceiling of the space where the water heater body 10 is arranged through the hanging frame 20, so that the top hanging type installation of the water heater body 10 is realized.

The hanger 20 has a telescopic function. The hanger 20 is contracted in the up-down direction to realize the upward movement of the water heater body 10, and the water heater body 10 moves upward. The hanger 20 is stretched in the up-down direction to realize the downward movement of the water heater body 10, and the water heater body 10 descends.

When the water heater body 10 is installed, the hanging frame 20 is fixedly installed on the roof, then the hanging frame 20 is in a stretching state, the bottom of the hanging frame 20 is in a low position, and finally the water heater body 10 is fixedly installed on the bottom of the hanging frame 20, so that the installation is convenient.

After the water heater body 10 is installed in place, the water heater body 10 is adjusted to a proper height position through the extension and retraction of the hanging frame 20 according to the use requirement of a user, so that the water heater is convenient for the user to use.

In some embodiments of the present application, referring to fig. 3 to 5, the hanger 20 includes a fixing base 100, a telescopic portion 200, and the like. The hanger 20 shown in fig. 3 includes two fixing bases 100 and two telescopic portions 200, and fig. 4 and 5 show one fixing base 100 and one telescopic portion 200.

Referring to fig. 6 and 7, the fixing base 100 is fixedly installed on the ceiling of the space where the product to be hung is located, and in this embodiment, the fixing base 100 is fixedly installed on the ceiling of the space where the water heater body 10 is located. The whole external contour of the fixing seat 100 is in a strip-shaped structure, a slide way part 110 is arranged in the fixing seat 100, and the slide way part 110 extends along the length direction of the fixing seat 100. A plurality of stop positions are formed in the slide portion 110.

The structure of the expansion and contraction part 200 referring to fig. 5 and 6, the expansion and contraction part 200 is a scissors-type expansion and contraction frame, and can be contracted and stretched in the up-down direction. The top of the telescopic part 200 is in sliding fit with the slideway part 110, and the bottom of the telescopic part 200 is provided with the water heater body 10. When the expansion and contraction portion 200 is deformed by contraction or stretching, the top portion of the expansion and contraction portion 200 slides along the slide portion 110.

When the telescopic part 200 is contracted, the top of the telescopic part 200 slides along the slideway part 110, and the telescopic part 200 is contracted and deformed upwards due to the fixed position of the slideway part 110, the water heater body 10 moves upwards along with the telescopic part, and the position of the water heater body 10 is adjusted to be higher.

When the telescopic part 200 stretches, the top of the telescopic part 200 slides along the slideway part 110, and the telescopic part 200 stretches downwards to deform due to the fixed position of the slideway part 110, the water heater body 10 moves downwards along with the telescopic part, and the position of the water heater body 10 is regulated down.

After the telescopic part 200 is contracted or stretched in place, the top end of the telescopic part 200 is positioned in the stop position, the top end of the telescopic part 200 is stopped, and the sliding along the slideway part 110 is stopped, so that the position of the water heater body 10 is fixed.

Through the motion of the top of the telescopic part 200 along the slideway part 110, the telescopic part 200 can shrink or stretch and deform in the up-down direction, so that the height position of the water heater body 10 is adjusted, and the deformed stop position is realized through the stop position, so that the stop position of the water heater body 10 after the height position adjustment is fixed.

In some embodiments of the present application, referring to fig. 4 and 5, the telescoping portion 200 includes a first folding bar portion 210 and a second folding bar portion 220. The first folding lever portion 210 includes a plurality of first links 211, and the plurality of first links 211 are connected in turn in a head-to-tail rotation manner. The second folding bar 220 includes a plurality of second links 221, and the plurality of second links 221 are connected in turn in a head-to-tail rotation manner. The corresponding first link 211 is rotatably connected to the second link 221 at the junction position.

The top of one of the first folding bar portion 210 and the second folding bar portion 220 is slidably connected with the slideway portion 110, the top of the other one is rotatably connected with the slideway portion 110 or the fixing seat 100, and the bottom of either one of the first folding bar portion 210 and the second folding bar portion 220 is provided with the water heater body 10.

In the embodiment shown in fig. 5, the top of the first folding bar portion 210 is slidably connected to the slideway portion 110, the top of the second folding bar portion 220 is rotatably connected to the slideway portion 110, and the bottom of the first folding bar portion 210 is provided with the water heater body 10.

In the structural state shown in fig. 5, the telescopic portion 200 is in a contracted state, and at this time, the top of the first folding bar portion 210 and the top of the second folding bar portion 220 are located at opposite ends of the slideway portion 110, and the two are far apart. The telescoping portion 200 stretches downward as the top of the first folding bar portion 210 moves along the chute portion 110 toward the top near the second folding bar portion 220.

In some embodiments of the present application, referring to fig. 5 to 7, the slide portion 110 includes a first slide 111 and a second slide 112, and the first slide 111 and the second slide 112 have openings 130 at bottom sides facing the fixing base 100, respectively. The first slide 111 and the second slide 112 are independent from each other, and are hollow structures with an opening 130 at the bottom formed in the fixing base 100.

The top of the first folding rod portion 210 extends into the first slideway 111 from bottom to top through the opening 130 and is in sliding connection with the first slideway 111, and the top of the second folding rod portion 220 extends into the second slideway 112 from bottom to top through the opening 130 and is in rotating connection with the second slideway 112.

The first slideway 111 and the second slideway 112 are arranged, so that the first folding rod part 210 and the second folding plate part can be independently installed; on the other hand, the first sliding way 111 and the second sliding way 112 are of a solid structure, which is helpful for ensuring the structural strength of the fixing base 100.

In some embodiments of the present application, referring to fig. 7, a protruding portion 120 is disposed on an inner side wall surrounding the first slideway 111, the protruding portion 120 protrudes toward another opposite inner side wall surrounding the first slideway 111, the protruding portion 120 forms a protruding portion 121 and a recessed portion 122 on a top edge of a top wall facing the first slideway 111, and the protruding portion 121 and the recessed portion 122 are plural and are sequentially arranged at intervals.

The protruding portion 120 and the top wall surrounding the first slideway 111 have a first gap 141 therebetween, and the top of the first folding rod portion 210 slides along the first gap 141, and the top of the first folding rod portion 210 is located in the recess 122.

The protruding portion 121 and the recessed portion 122 are in arc transitional connection, that is, a wave-shaped structure is formed at the top of the protruding portion 120, so that the top of the first folding rod portion 210 is clamped into the recessed portion 122 and is separated from the recessed portion 122, and the clamping phenomenon is avoided.

When the height of the water heater body 10 needs to be adjusted, the water heater body 10 is lifted upwards, the top of the first folding rod portion 210 moves upwards and is separated from the concave portion 122, at this time, the top of the first folding rod portion 210 is located in the first gap 141, then the water heater body 10 is pushed (or pulled) along the extending direction of the first slideway 111, the top of the first folding rod portion 210 slides along the first slideway 111, shrinkage or stretching deformation of the telescopic portion 200 is synchronously caused, further the height position of the water heater body 10 is adjusted, and after the water heater body 10 is adjusted in place, the water heater body 10 is loosened.

The whole adjusting process can be operated by one user, so that the using convenience is improved.

The protrusion 120 is disposed, first, by forming a first gap 141 between the protrusion and the top wall of the first slideway 111, to increase the movement space for the first folding bar 210 to slide along the first slideway 111; secondly, the protruding portion 120 also plays a role of stopping and limiting the top of the first folding rod portion 210, so that the top of the first folding rod portion 210 can be limited in the first gap 141 and cannot be separated from the first slideway 111; finally, by forming the recess 122 on the top edge of the protrusion 120, the adjusted stop of the telescopic part 200 is achieved.

In some embodiments of the present application, with continued reference to fig. 7, one end of the protruding portion 120 along the length direction thereof is connected to a side end wall of the first sliding track 111 away from the second sliding track 112, and a second gap 142 is formed between the other end of the protruding portion 120 along the length direction thereof and a side end wall of the first sliding track 111 close to the second sliding track 112, and the first gap 141 is in communication with the second gap 142.

Referring to fig. 6, the bottom side opening 130 of the first slideway 111 includes a first opening 131 and a second opening 132 which are communicated, the width of the first opening 131 is smaller than that of the second opening 132, the first opening 131 is communicated with the first gap 141 up and down, and the second opening 132 is communicated with the second gap 142 up and down.

The top of the first hinge portion 210 extends into the first gap 141 from bottom to top through the second opening 132 to slide along the first gap 141. Specifically, the top of the first folding rod 210 extends into the second gap 142 from bottom to top through the second opening 132, and then the top of the first folding rod 210 is moved horizontally into the first gap 141, so as to facilitate the installation between the first folding rod 210 and the first slideway 111.

In some embodiments of the present application, the second gap 142 is provided with a limiting portion 150, and the limiting portion 150 is configured to prevent the first folding rod portion 210 from being separated from the second opening 132, so as to limit the first folding rod portion 210.

In this embodiment, the stop pin is not installed when the first folding bar portion 210 is installed, so as to allow the top of the first folding bar portion 210 to be installed into the first gap 141 through the second gap 142, and after the installation, the stop pin is installed, so as to stop the first folding bar portion 210. Referring to fig. 7, a mounting hole 151 for mounting the stopper pin is provided in the first slide 111.

In some embodiments of the present application, referring to fig. 8, a rolling portion 212 is disposed at the top of the first folding bar portion 210, and the rolling portion 212 moves along the first gap 141, so as to improve the smoothness of movement.

In this embodiment, the rolling portion 212 is two rollers disposed on two sides of the first link 211 at the top, one of the rollers is matched with the recess 122 on the corresponding side, the other roller is matched with the recess 122 on the corresponding side, and the first link 211 at the top extends out from the first opening 131.

In some embodiments of the present application, referring to fig. 5, the top of the second folding bar portion 220 is rotatably disposed on a side of the second sliding track 112 away from the first sliding track 111. This maximizes the distance between the top of the first folding bar portion 210 and the bottom of the second folding bar portion 220, which contributes to an increase in the amount of expansion and contraction deformation of the expansion and contraction portion 200.

In some embodiments of the present application, referring to fig. 2 and 4, a mounting frame 500 is provided at the bottom of the first folding bar portion 210, and the mounting frame 500 is fixedly mounted to the top of the water heater body 10 by a fastener such as a screw to connect the water heater body 10 with the telescopic portion 200.

In some embodiments of the present application, referring to fig. 3, two fixing bases 100 are provided, and a first fixing rod 300 is connected between the two fixing bases 100. A telescopic part 200 is arranged below each fixing seat 100, and a second fixing rod 400 is connected between the two telescopic parts 200.

The arrangement of the two fixing seats 100 and the two telescopic parts 200 is beneficial to improving the structural reliability of the hanger 20 and realizing the reliable hanging of the water heater body 10.

The arrangement of the first fixing rod 300 and the second fixing rod 400 forms an integral device structure of the fixing seat 100 and the telescopic part 200 at two sides, which is helpful for improving the structural reliability; on the other hand, the two holders 100 are also easily aligned.

In the description of the above embodiments, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. A hanger for top hanging installation of a product, the hanger comprising:

2. The hanger according to claim 1, wherein,

the telescopic part comprises a first folding rod part and a second folding rod part, the first folding rod part comprises a plurality of first connecting rods, the first connecting rods are sequentially connected in a head-to-tail rotation mode, the second folding rod part comprises a plurality of second connecting rods, the second connecting rods are sequentially connected in a head-to-tail rotation mode, and the corresponding first connecting rods are rotationally connected with the second connecting rods at the junction positions;

3. The hanger according to claim 2, wherein,

the slide way part comprises a first slide way and a second slide way, the first slide way and the second slide way are respectively provided with an opening towards the bottom side of the fixing seat, the top of the first folding rod part extends into the first slide way through the opening and is in sliding connection with the first slide way, and the second folding rod part extends into the second slide way through the opening and is in rotating connection with the second slide way.

4. The hanger according to claim 3, wherein,

the inner side wall surrounding the first slideway is provided with a protruding part protruding towards the other opposite inner side wall surrounding the first slideway, the protruding part forms a protruding part and a recessed part on the top edge of the top wall facing the first slideway, and the protruding part and the recessed part are arranged at intervals in sequence;

5. The hanger according to claim 4, wherein,

one end of the protruding part along the length direction of the protruding part is connected with the side end wall of the first slideway far away from the second slideway, a second gap is arranged between the other end of the protruding part along the length direction of the protruding part and the side end wall of the first slideway near the second slideway, and the first gap is communicated with the second gap;

6. The hanger according to claim 5, wherein,

the second gap is provided with a limiting part, and the limiting part is used for preventing the first folding rod part from being separated from the second opening.

7. The hanger according to claim 4, wherein,

the top of the first folding rod part is provided with a rolling part, and the rolling part moves along the first gap.

8. The hanger according to claim 3, wherein,

the top of the second folding rod part is rotationally arranged on one side, far away from the first slide way, of the second slide way.

9. The hanger according to any of claims 1 to 8, wherein,

the two fixing seats are connected with a first fixing rod;

10. A water heater is characterized in that,

the water heater comprises a water heater body and the hanging frame as claimed in any one of claims 1 to 9, wherein the fixing seat is fixed on a shed roof of a space where the water heater body is located, the telescopic part is arranged at the top of the water heater body, the telescopic part is contracted or stretched, and the water heater body moves upwards or downwards.