CN109612086B

CN109612086B - Novel closed water boiler

Info

Publication number: CN109612086B
Application number: CN201811519143.8A
Authority: CN
Inventors: 侯全舵; 曾艳; 洪壹辉; 李伟彬; 吴飞乐; 高月凤
Original assignee: Xiamen Zhongjiayuan Ecological Technology Co ltd
Current assignee: XIAMEN E-TEC ELECTRIC SHOWER CO.,LTD.
Priority date: 2018-12-12
Filing date: 2018-12-12
Publication date: 2021-02-19
Anticipated expiration: 2038-12-12
Also published as: CN109612086A; EP3667196A1; EP3667196B1

Abstract

The invention provides a novel closed water boiler, and relates to the technical field of water boiler equipment. The water boiler is provided with a water tank mechanism for storing water, wherein the water tank mechanism is provided with a lower tank body, an upper tank body arranged on the lower tank body and a matched sealing component for sealing the lower tank body and the upper tank body; the lower box body and the upper box body enclose a containing cavity for storing water, the sealing component is provided with a supporting piece, a first sealing piece and a second sealing piece, the supporting piece is an annular geometric body, and the supporting piece is provided with an annular vertical section and a horizontal section fixed on the peripheral surface of the vertical section; the horizontal section is clamped between the upper box body and the lower box body, the vertical section is supported in the accommodating cavity, the first sealing element and the second sealing element are respectively sleeved on the vertical section, the first sealing element is enabled to play a role in sealing the vertical section and the upper box body, the second sealing element is enabled to play a role in sealing the vertical section and the lower box body, and the effect that the upper box body and the lower box body are sealed without welding is achieved.

Description

Novel closed water boiler

Technical Field

The invention relates to the technical field of water boiler equipment, in particular to a novel closed water boiler.

Background

The water boiler is designed and developed for meeting the requirement of more people on drinking boiled water, and is drinking water equipment which is used for producing boiled water by converting electric energy or other fuels into heat energy through combustion. Most of the water boilers on the market today are open water boilers, which due to atmospheric pressure do not have a boiling point of more than 100 ℃.

In the prior art, a closed water boiler also exists, and the closed water boiler comprises a sealed water tank, wherein in the process of heating water, the boiling point of water in the water tank is larger than 100 ℃ by increasing the air pressure in the water tank, and the water tank is usually made of metal materials because the water tank needs to bear higher pressure. In view of the above, the inventors of the present invention have made a study of the prior art and then have made the present application.

Disclosure of Invention

The invention provides a novel closed water boiler, and aims to solve the problem that heavy metals are introduced due to welding in a water tank of a closed water boiler in the prior art.

In order to solve the technical problem, the invention provides a novel closed water boiler, which comprises: the water tank mechanism is used for storing water, the water inlet and outlet mechanism is used for inlet water and outlet water, and the heating mechanism is used for heating water in the water tank mechanism. The water tank mechanism is provided with a lower tank body, an upper tank body arranged on the lower tank body and a matched sealing assembly used for sealing the lower tank body and the upper tank body;

the lower box body and the upper box body enclose a containing cavity for storing water, the sealing assembly is provided with a supporting piece, a first sealing piece and a second sealing piece, the supporting piece is an annular geometric body and is provided with an annular vertical section and a horizontal section fixed on the peripheral surface of the vertical section, and the vertical section is matched with the containing cavity; the horizontal section is clamped between the upper box body and the lower box body so that the vertical section is supported in the accommodating cavity, and the first sealing element and the second sealing element are respectively sleeved on the vertical section so that the first sealing element is clamped between the vertical section and the upper box body and the second sealing element is clamped between the vertical section and the lower box body;

the first sealing element is used for sealing the matching between the vertical section and the upper box body, and the second sealing element is used for sealing the matching between the vertical section and the lower box body.

As a further optimization, the water inlet and outlet mechanism has a water inlet and outlet member, and the water inlet and outlet member includes: the water inlet section is used for feeding water, the first stretching-in section is arranged on the water inlet section and is inserted into the cavity, the second stretching-in section is sleeved on the first stretching-in section and is inserted into the cavity, the hot water outlet section is communicated with the second stretching-in section, the mixing section is arranged on the water inlet section, and the warm water outlet section is arranged on the mixing section;

the mixing section is provided with a cold water channel communicated with the water inlet section, a hot water channel communicated with the second extending section and a mixing channel used for communicating the cold water channel with the hot water channel, and the warm water outlet section is communicated with the mixing channel; the depth of the first extending section inserted into the cavity is larger than that of the second extending section inserted into the cavity;

the first section of stretching into is used for making external water leading-in hold the chamber, the second stretches into the section and is used for making the hot water in appearance chamber derives the external world, hot water goes out the water section and is used for flowing out hot water, the mixing section is used for mixing the water that comes from the section of intaking and coming from the second stretches into the hot water of section in order to form mixed water, warm water play water section is used for flowing out mixed water.

As a further optimization, the water inlet and outlet piece is provided with a limiting section which is arranged on the second extending section and supported on the upper box body; the water inlet and outlet mechanism is provided with a sealing gasket which is sleeved on the second stretching-in section and clamped between the limiting section and the upper box body, and a locking nut which is in threaded connection with the second stretching-in section and is positioned in the accommodating cavity, the locking nut is used for enabling the limiting section and the upper box body to respectively compress the sealing gasket, and the sealing gasket is used for sealing the matching of the water inlet and outlet piece and the upper box body.

As a further optimization, an upper support section is arranged on the end face of the upper box body in a horizontal arrangement, a lower support section is arranged on the end face of the lower box body in a horizontal arrangement, and the upper support section and the lower support section are configured together through bolts.

As a further optimization, the water tank mechanism has an upper bushing disposed at the upper support section, and a lower bushing disposed at the lower support section, and the bolts pass through the upper bushing, the upper support section, the horizontal section, the lower support section, and the lower bushing, respectively.

Preferably, the first sealing element is at least one sealing ring sleeved on the vertical section, and the second sealing element is at least one sealing ring sleeved on the vertical section.

As a further optimization, the water boiler is provided with a temperature measuring element inserted into the containing cavity, and the temperature measuring element is used for detecting the temperature of hot water in the containing cavity.

Preferably, the water inlet and outlet mechanism is provided with an electromagnetic valve arranged on the hot water outlet section, and the electromagnetic valve is used for controlling the connection and disconnection of the hot water outlet section.

As a further optimization, the water inlet section is provided with two communicated ends, one end is a water inlet end for water inlet, the other end is a safety end for connecting the pressure release valve, and the water inlet end and the safety end are both communicated with the first extending section; the water boiler is provided with a pressure relief valve arranged at the safety end.

By adopting the technical scheme, the invention can obtain the following technical effects:

the invention discloses a closed water boiler, which is provided with a water tank mechanism for storing water, wherein the water tank mechanism is provided with an upper tank body, a lower tank body and a sealing component, and the sealing component also comprises: support piece with vertical section and horizontal segment, first sealing member and second sealing member, the horizontal segment presss from both sides between last box and lower box, vertical section is located the appearance intracavity that box and lower box enclose, first sealing member is put on vertical section through the cover and is pressed from both sides the cooperation that reaches sealed support piece and last box between last box inner wall and vertical section, the second sealing member is put on vertical section through the cover and is pressed from both sides the cooperation that reaches sealed support piece and lower box between lower box inner wall and vertical section, promptly: the sealing assembly can seal the supporting piece and the upper box body and the matching between the supporting piece and the lower box body, and can prevent water in the cavity from flowing out of the matching position between the upper box body and the lower box body; through above technical scheme, seal assembly can play the effect of sealed upper box and lower box, has avoided letting the sealed configuration of upper box and lower box together through the welded mode among the prior art, leads to the water heavy metal after the boiler has been boiled excessive, influences drinker's healthy problem.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of an axial side configuration of a water boiler, in accordance with an embodiment of the present invention;

fig. 2 is a schematic cross-sectional view of a water boiler according to an embodiment of the present invention;

FIG. 3 is an exploded view of the water boiler, in accordance with one embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a water inlet/outlet member according to an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 2 at I;

the labels in the figure are: 1-a heating mechanism; 2, a water inlet section; 3-a mixing section; 4-temperature measuring parts; 5-warm water outlet section; 6-a water tank mechanism; 7-hot water outlet section; 8-a limiting section; 9-a sealing gasket; 10-locking a nut; 11-a cavity; 12-an upper support section; 13-a lower support section; 14-a solenoid valve; 15-water inlet end; 16-a safety terminal; 17-a first plug; 18-water inlet and outlet member; 19-an upper bushing; 20-loading the box body; 21-a first seal; 22-a second seal; 23-a support; 24-a seal assembly; 25-lower box body; 26-a lower bushing; 27-a heating element; 28-vertical section; 29-horizontal segment; 30-a cold water channel; 31-hot water channel; 32-a mixing channel; 33-a first stretch-in section; 34-second run-in section.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" 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 defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The invention is described in further detail below with reference to the following detailed description and accompanying drawings:

as shown in fig. 1, 2, 3 and 5, in this embodiment, a novel closed water boiler includes: the water tank mechanism 6 is used for storing water, the water inlet and outlet mechanism is used for inlet water and outlet water, and the heating mechanism 1 is used for heating water in the water tank mechanism 6. The tank mechanism 6 has a lower tank 25, an upper tank 20 disposed in the lower tank 25, and a fitting seal assembly 24 for sealing the lower tank 25 and the upper tank 20.

The lower box body 25 and the upper box body 20 enclose a containing cavity 11 for storing water, the sealing component 24 is provided with a supporting piece 23, a first sealing piece 21 and a second sealing piece 22, the supporting piece 23 is an annular geometric body with a cross section of a T shape on one side, the supporting piece 23 is provided with an annular vertical section 28 and a horizontal section 29 fixed on the outer peripheral surface of the vertical section 28, and the vertical section 28 is matched with the containing cavity 11; the horizontal section 29 is clamped between the upper box body 20 and the lower box body 25, so that the vertical section 28 is supported in the accommodating cavity 11, and the first sealing element 21 and the second sealing element 22 are respectively sleeved on the vertical section 28, so that the first sealing element 21 is clamped between the vertical section 28 and the upper box body 20, and the second sealing element 22 is clamped between the vertical section 28 and the lower box body 25; the first seal 21 is used to seal the fit between the vertical section 28 and the upper case 20, and the second seal 22 is used to seal the fit between the vertical section 28 and the lower case 25. In this embodiment, the upper box 20 and the lower box 25 are both made of titanium alloy and have an open tubular structure, the receiving cavity 11 is a cylindrical cavity, the supporting member 23 is a circular ring-shaped geometric body, and the outer peripheral surface of the vertical section 28 is provided with 4 grooves surrounding the vertical section 28. The first sealing element 21 and the second sealing element 22 are respectively 2O-rings sleeved on the annular supporting element 23. 4O type sealing washer are set respectively on 4 recesses. In this embodiment, the housing mechanism has a plurality of bolts passing through the upper housing 20, the horizontal section 29, and the lower housing 25, respectively, the plurality of bolts allowing the upper housing 20 and the lower housing 25 to firmly clamp the horizontal section 29 and the vertical section 28 to be supported in the receiving chamber 11.

As shown in fig. 2 and 5, the first sealing member 21 is sleeved on the vertical section 28 and clamped between the inner wall of the upper box 20 and the vertical section 28 to achieve the matching of the sealing support 23 and the upper box 20, and the second sealing member 22 is sleeved on the vertical section 28 and clamped between the inner wall of the lower box 25 and the vertical section 28 to achieve the matching of the sealing support 23 and the lower box 25, namely: the sealing assembly 24 may seal the engagement between the support 23 and the upper case 20 and between the support 23 and the lower case 25, and may prevent water in the receiving chamber 11 from flowing out from the engagement between the upper case 20 and the lower case 25. Through the technical scheme of this embodiment, the seal assembly 24 can play the role of sealing the upper box body 20 and the lower box body 25, and the problem that the health of a drinker is affected due to excessive heavy metals in water after the water boiler is boiled because the upper box body 20 and the lower box body 25 are hermetically arranged together in a welding manner in the prior art is solved. In another embodiment, the first sealing member 21 and the second sealing member 22 may be one or more O-rings respectively sleeved on the vertical section 28, and the outer circumferential surface of the vertical section 28 is provided with the same number of grooves as the O-rings.

As shown in fig. 1 to 4, in the present embodiment, the water inlet and outlet mechanism has a water inlet and outlet member 18, and the water inlet and outlet member 18 includes: the water inlet section 2 is used for feeding water, the first stretching-in section 33 is arranged on the water inlet section 2 and inserted into the cavity 11, the second stretching-in section 34 is sleeved on the first stretching-in section 33 and inserted into the cavity 11, the hot water outlet section 7 is communicated with the second stretching-in section 34, the mixing section 3 is arranged on the water inlet section 2, and the warm water outlet section 5 is arranged on the mixing section 3. As shown in FIG. 4, the mixing section 3 has a cold water passage 30 communicating with the water inlet section 2, a hot water passage 31 communicating with the second inlet section 34, and a mixing passage 32 for communicating the cold water passage 30 with the hot water passage 31, and the warm water outlet section 5 communicates with the mixing passage 32. As shown in fig. 3, the first protruding section 33 is inserted into the cavity 11 to a greater depth than the second protruding section 34 is inserted into the cavity 11; the first extending section 33 is used for guiding external water into the cavity 11, the second extending section 34 is used for guiding hot water in the cavity 11 out, the hot water outlet section 7 is used for flowing out hot water, the mixing section 3 is used for mixing the water from the water inlet section 2 and the hot water from the second extending section 34 to form mixed water, and the warm water outlet section 5 is used for flowing out the mixed water. As shown in fig. 2 and 4, the mixing section 3 is a pipe with two channels inside, the ends of the two channels are provided with through holes which are communicated with each other, the through holes are communicated with the outside, and the hot water outlet section is communicated with the through holes; in addition, the water inlet and outlet mechanism is also provided with a first plug 17 arranged in the through hole, the first plug 17 is in sealing fit with the through hole, and the first plug 17 can prevent water flowing through the mixing section 3 from flowing out of the outside. As shown in fig. 2 and 3, the heating mechanism 1 has a heating member 27 inserted into the cavity 11 through the upper case 20, and the heating member 27 is a resistive heating element; the heating mechanism 1 and the upper case 20 are welded together by Ni paste.

As shown in fig. 2 and 4, in the present embodiment, since the depth of the first extending section 33 inserted into the cavity 11 is greater than the depth of the second extending section 34 inserted into the cavity 11, the cold water from the first extending section 33 flows into the lower portion of the cavity 11, and the second extending section 34 is communicated with the upper portion of the cavity 11, so that the water flowing out of the second extending section 34 is the hot water heated by the heating mechanism 1. As shown in fig. 4, in this embodiment, a concentric structure is formed between the first extending section 33 and the second extending section 34, the second extending section 34 is sleeved on the first extending section 33, external cold water can flow into the accommodating cavity 11 through the water inlet section 2 and the first extending section 33, and heated hot water in the accommodating cavity 11 can flow into the hot water passage 31 of the hot water outlet section 7 and the mixing section 3 through a gap between the outer wall of the first extending section 33 and the inner wall of the second extending section 34. Through the structure, the water boiler disclosed by the invention can simultaneously have the functions of flowing out hot water and warm water, and in the embodiment, the temperature of mixed water flowing out of the warm water outlet section 5 is approximately 65 ℃, and the mixed water can directly provide warm water for washing for a user. The water inlet and outlet mechanism has a simple structure, directly has the function of flowing hot water and warm water, does not need to lead the hot water out of the water boiler and then mix the hot water with external cold water like the prior art, greatly simplifies the structure, and has higher safety because the hot water does not need to be led out.

As shown in fig. 2 to 4, in the present embodiment, the water inlet/outlet member 18 has a limiting section 8 disposed at the second extending section 34 and supported on the upper case 20; the water inlet and outlet mechanism is provided with a sealing gasket 9 which is sleeved on the second extending section 34 and clamped between the limiting section 8 and the upper box body 20, and a locking nut 10 which is in threaded connection with the second extending section 34 and is positioned in the accommodating cavity 11, the locking nut 10 is used for enabling the limiting section 8 and the upper box body 20 to respectively compress the sealing gasket 9, and the sealing gasket 9 is used for sealing the matching of the water inlet and outlet piece 18 and the upper box body 20. In this embodiment, the position-limiting section 8 is a circular plate-shaped body fixed on the second extending section 34.

As shown in fig. 3 and 5, in the present embodiment, the upper case 20 is provided with a horizontally disposed upper support section 12 on an end surface thereof, and the lower case 25 is provided with a horizontally disposed lower support section 13 on an end surface thereof. The water tank mechanism 6 further has an upper bushing 19 disposed on the upper support section 12, a lower bushing 26 disposed on the lower support section 13, and a plurality of bolt assemblies, wherein bolts respectively pass through the upper bushing 19, the upper support section 12, the horizontal section 29, the lower support section 13, and the lower bushing 26, so that the upper tank 20 and the lower tank 25 are disposed together, and the horizontal section 29 is firmly clamped. In this embodiment, the upper bushing 19 and the lower bushing 26 allow the upper case 20 and the lower case 25 to be more stably disposed together, and reduce the play between the upper case 20 and the lower case 25.

As shown in fig. 3, in the present embodiment, the water boiler has a temperature measuring member 4 inserted into the cavity 11, and the temperature measuring member 4 is used for detecting the temperature of the hot water in the cavity 11. The water inlet and outlet mechanism is provided with a solenoid valve 14 arranged at the hot water outlet section 7, and the solenoid valve 14 is used for controlling the connection and disconnection of the hot water outlet section 7. In addition, in this embodiment, the section 2 of intaking has the both ends that are linked together, one end is for being used for intaking the end 15 of intaking, the other end is for being used for connecting the safety end 16 of relief valve, it all is linked together with first section 33 of stretching into to intake end 15 and safety end 16, the boiler has the relief valve (not shown) of configuration at safety end 16, when the water that holds the intracavity 11 leads to holding the intracavity 11 when too big because of reasons such as the high temperature, the relief valve can play the effect of pressure release, guarantee the safe handling of boiler.

In another embodiment, the upper liner 19 and the lower liner can be omitted from the tank mechanism 6, and the upper support section 12, the lower support section 13, and the horizontal section 29 are directly bolted together.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel closed water boiler comprises: the water heater comprises a water tank mechanism (6) for storing water, a water inlet and outlet mechanism for inlet and outlet water, and a heating mechanism (1) for heating water in the water tank mechanism (6), and is characterized in that the water tank mechanism (6) is provided with a lower tank body (25), an upper tank body (20) arranged on the lower tank body (25), and a matched sealing component (24) for sealing the lower tank body (25) and the upper tank body (20);

the lower box body (25) and the upper box body (20) enclose a containing cavity (11) for storing water, the sealing assembly (24) is provided with a supporting piece (23), a first sealing piece (21) and a second sealing piece (22), the supporting piece (23) is an annular geometrical body, the supporting piece (23) is provided with an annular vertical section (28) and a horizontal section (29) fixed on the outer peripheral surface of the vertical section (28), and the vertical section (28) is matched with the containing cavity (11); the horizontal section (29) is clamped between the upper box body (20) and the lower box body (25) so that the vertical section (28) is supported in the accommodating cavity (11), and the first sealing piece (21) and the second sealing piece (22) are respectively sleeved on the vertical section (28) so that the first sealing piece (21) is clamped between the vertical section (28) and the upper box body (20) and the second sealing piece (22) is clamped between the vertical section (28) and the lower box body (25);

the first seal (21) being intended to seal the cooperation between the vertical section (28) and the upper box (20), the second seal (22) being intended to seal the cooperation between the vertical section (28) and the lower box (25);

wherein the water inlet and outlet mechanism is provided with a water inlet and outlet member (18), and the water inlet and outlet member (18) comprises: the water inlet device comprises a water inlet section (2) for feeding water, a first stretching-in section (33) which is configured on the water inlet section (2) and is inserted into the cavity (11), a second stretching-in section (34) which is sleeved on the first stretching-in section (33) and is inserted into the cavity (11), a hot water outlet section (7) communicated with the second stretching-in section (34), a mixing section (3) configured on the water inlet section (2), and a warm water outlet section (5) configured on the mixing section (3);

the mixing section (3) is provided with a cold water channel (30) communicated with the water inlet section (2), a hot water channel (31) communicated with the second extending section (34), and a mixing channel (32) used for communicating the cold water channel (30) with the hot water channel (31), and the warm water outlet section (5) is communicated with the mixing channel (32); the depth of the first extending section (33) inserted into the cavity (11) is larger than the depth of the second extending section (34) inserted into the cavity (11);

the first stretching-in section (33) is used for leading external water into the accommodating cavity (11), the second stretching-in section (34) is used for leading hot water in the accommodating cavity (11) out, the hot water outlet section (7) is used for flowing out hot water, the mixing section (3) is used for mixing the water from the water inlet section (2) and the hot water from the second stretching-in section (34) to form mixed water, and the warm water outlet section (5) is used for flowing out the mixed water.

2. A novel closed water boiler according to claim 1, characterized in that the water inlet and outlet member (18) has a limiting section (8) disposed at the second entering section (34) and supported on the upper tank (20); the water inlet and outlet mechanism is provided with a sealing gasket (9) which is sleeved on the second stretching-in section (34) and clamped between the limiting section (8) and the upper box body (20), and a locking nut (10) which is in threaded connection with the second stretching-in section (34) and is positioned in the accommodating cavity (11), the locking nut (10) is used for enabling the limiting section (8) and the upper box body (20) to respectively compress the sealing gasket (9), and the sealing gasket (9) is used for sealing the matching of the water inlet and outlet piece (18) and the upper box body (20).

3. A novel closed water boiler according to claim 1, characterized in that the end surface of the upper tank body (20) is provided with an upper support section (12) which is horizontally arranged, the end surface of the lower tank body (25) is provided with a lower support section (13) which is horizontally arranged, and the upper support section (12) and the lower support section (13) are configured together through bolts.

4. A novel closed water boiler according to claim 3, characterized in that the water tank mechanism (6) has an upper bushing (19) arranged on the upper support section (12) and a lower bushing (26) arranged on the lower support section (13), and the bolts pass through the upper bushing (19), the upper support section (12), the horizontal section (29), the lower support section (13) and the lower bushing (26), respectively.

5. A novel closed water boiler according to claim 1, characterized in that the first sealing element (21) is at least one sealing ring sleeved on the vertical section (28), and the second sealing element (22) is at least one sealing ring sleeved on the vertical section (28).

6. A novel closed water boiler according to claim 1, characterized in that the water boiler is provided with a temperature measuring element (4) inserted into the cavity (11), and the temperature measuring element (4) is used for detecting the temperature of the hot water in the cavity (11).

7. A novel closed water boiler according to claim 1, characterized in that the water inlet and outlet mechanism has a solenoid valve (14) arranged at the hot water outlet section (7), and the solenoid valve (14) is used for controlling the connection and disconnection of the hot water outlet section (7).

8. A novel closed water boiler according to claim 1, characterized in that the water inlet section (2) has two ends which are communicated with each other, one end is a water inlet end (15) for water inlet, the other end is a safety end (16) for connecting a pressure relief valve, and the water inlet end (15) and the safety end (16) are both communicated with the first extending section (33); the water boiler is provided with a pressure relief valve arranged at the safety end (16).