JP2011064449A - Water tank including airtightness holding part - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water tank including an airtightness holding part capable of facilitating the cleaning of a water tank interior, positively carrying out the holding of airtightness, having high insulating performance, and capable of minimizing energy consumption for heating or cooling the water tank interior. <P>SOLUTION: The water tank including the airtightness holding part 400 includes a body 10 opened at one side and holding water, a cover 300 finishing the body 10 and attached with a temperature controller 301 heating or cooling water held in the body 10 by a heat source supplied from the outside, and the airtightness holding part 400 combining the body 10 and the cover 300 to maintain airtightness. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to a water tank provided with an airtight holding portion, and in particular, the water tank can be easily assembled, the airtight holding power can be improved by various embodiments, and the water tank can be cleaned. It is related with the water tank provided with the airtight holding | maintenance part.

A device that heats or cools water supplied from the outside, such as a chiller / heater, water purifier, vending machine, etc., so that it can be drunk into water or beverage at a desired temperature is usually equipped with a water tank. The above-described water tank is usually made of a metal material such as stainless steel or aluminum for heat resistance, corrosion resistance, impact resistance, durability and molding convenience.

Such a water tank is generally composed of a body part and a cover, and may be welded to maintain airtightness between the body part and the cover, but occurs along the welded part between the body part and the cover. There is a risk that cracks and water leakage may occur due to brittleness, and if used for a long time, harmful substances may be generated in the human body due to corrosion of the corresponding part. Further, when the water tank is used for a long time, fines may propagate inside or foreign substances such as scale may be generated, so it is necessary to clean the inside of the water tank.

And since the water tank is often made of a metal material and heat release to the outside with high thermal conductivity is easily performed, even if the water in the water tank is heated or cooled to a desired temperature, Since the water temperature immediately became room temperature, it was not possible to avoid exhaustion of energy for subsequently heating or cooling the water in the water tank.

In addition, the water tank is accompanied by work that takes time and effort, such as covering it with a flame-retardant or non-flammable heat insulating material separately provided on the outside in order to minimize heat loss, and the effect of the heat insulating material is expected. There was also the disadvantage of not.

The present invention devised to improve the above-described problems and the like has an object to provide a water tank provided with an airtight holding portion that ensures secure airtight holding.

Another object of the present invention is to provide a water tank provided with an airtight holding portion that facilitates cleaning of the water tank and ensures that airtightness is maintained.

Furthermore, the present invention has another object to provide a water tank provided with an airtight holding part that enhances heat insulation performance and minimizes energy consumption for heating or cooling water in the water tank. There is.

In order to achieve the above-mentioned object, a water tank equipped with an airtight holding part according to the present invention has a body part that is open on one side, accommodates water, finishes the body part, and is heated by an externally supplied heat source. It has a structure including a cover to which a temperature control tool for heating or cooling water contained in the body part is attached, and an airtight holding part for keeping the body part and the cover in combination and maintaining airtightness.

According to a preferred embodiment, the hermetic holding portion is inserted into an inner wall of an expanded tube portion formed along an open side edge portion of the trunk portion having a cylindrical shape, and forms a valley portion juxtaposed to the inner wall. The first bent portion formed along the edge of the cover, and extended from the first bent portion, coupled with the tube expansion portion by curling, and crimped along the outer wall of the body portion A structure including the second bent portion to be applied can be applied.

According to a preferred embodiment, the body portion includes an inner cylinder that stores water, and an outer cylinder that surrounds the inner cylinder while forming a space between the outer surface of the inner cylinder and the cover. Finishes the inner cylinder and the outer cylinder, and the airtight holding portion is attached between the inner cylinder and the cover or between the outer cylinder and the cover, and the sealed state of the inner cylinder and the outer cylinder The outer cylinder is integrally coupled with an open edge of the inner cylinder, and a structure can be applied in which a vacuum state is maintained between the inner surface of the outer cylinder and the outer surface of the inner cylinder. .

The water tank provided with the airtight holding part according to the present invention has the following advantages. First, since the curling process is performed in a state in which the cover and the body portion are firmly fixed without wobbling in the processing process, the hermetic holding force can be improved.

Moreover, since the trunk | drum consists of the double structure of the inner cylinder and outer cylinder which have a vacuum space part, heat insulation improves and it can reduce the power consumption for heating or cooling water.

Further, the water tank can be easily cleaned by adopting a structure of an airtight holding part in which the cover and the body part are detachable from each other.

In addition, by adopting a structure in which a vacuum space is provided between the inner cylinder and the outer cylinder, there is no need to add a separate heat insulating material. Reduction can be achieved.

1 is a perspective view illustrating an overall structure of a water tank provided with an airtight holding unit according to an embodiment of the present invention. It is a perspective view which shows the whole structure of the water tank provided with the airtight holding | maintenance part by the other Example of this invention. FIG. 3 is a conceptual cross-sectional view of FIG. 2. FIG. 4 is an enlarged view of part A of FIG. 3. FIG. 4 is an enlarged view of part A of FIG. 3. FIG. 3 is a conceptual diagram illustrating an overall structure of a water tank provided with an airtight holding unit according to various embodiments of the present invention. FIG. 3 is a conceptual diagram illustrating an overall structure of a water tank provided with an airtight holding unit according to various embodiments of the present invention. FIG. 3 is a conceptual diagram illustrating an overall structure of a water tank provided with an airtight holding unit according to various embodiments of the present invention. FIG. 3 is a conceptual diagram illustrating an overall structure of a water tank provided with an airtight holding unit according to various embodiments of the present invention. FIG. 3 is a conceptual diagram illustrating an overall structure of a water tank provided with an airtight holding unit according to various embodiments of the present invention. FIG. 3 is a conceptual diagram illustrating an overall structure of a water tank provided with an airtight holding unit according to various embodiments of the present invention. FIG. 3 is a conceptual diagram illustrating an overall structure of a water tank provided with an airtight holding unit according to various embodiments of the present invention. FIG. 3 is a conceptual diagram illustrating an overall structure of a water tank provided with an airtight holding unit according to various embodiments of the present invention. FIG. 3 is a conceptual diagram illustrating an overall structure of a water tank provided with an airtight holding unit according to various embodiments of the present invention. It is a conceptual diagram which shows the airtight holding | maintenance part of the important part of the water tank provided with the airtight holding | maintenance part by various Example of this invention. It is a conceptual diagram which shows the airtight holding | maintenance part of the important part of the water tank provided with the airtight holding | maintenance part by various Example of this invention. It is a conceptual diagram which shows the airtight holding | maintenance part of the important part of the water tank provided with the airtight holding | maintenance part by various Example of this invention. It is a conceptual diagram which shows the airtight holding | maintenance part of the important part of the water tank provided with the airtight holding | maintenance part by various Example of this invention. It is a conceptual diagram which shows the airtight holding | maintenance part of the important part of the water tank provided with the airtight holding | maintenance part by various Example of this invention. It is a conceptual diagram which shows the airtight holding | maintenance part of the important part of the water tank provided with the airtight holding | maintenance part by various Example of this invention. It is a conceptual diagram which shows the airtight holding | maintenance part of the important part of the water tank provided with the airtight holding | maintenance part by various Example of this invention. It is a conceptual diagram which shows the airtight holding | maintenance part of the important part of the water tank provided with the airtight holding | maintenance part by various Example of this invention. It is a conceptual diagram which shows the airtight holding | maintenance part of the important part of the water tank provided with the airtight holding | maintenance part by various Example of this invention. It is a conceptual diagram which shows the airtight holding | maintenance part of the important part of the water tank provided with the airtight holding | maintenance part by various Example of this invention. It is a conceptual diagram which shows the airtight holding | maintenance part of the important part of the water tank provided with the airtight holding | maintenance part by various Example of this invention. It is a conceptual diagram which shows the use condition of the water tank provided with the airtight holding | maintenance part by the other Example of this invention. It is a conceptual diagram which shows the airtight holding | maintenance part of the important part of the water tank provided with the airtight holding | maintenance part by various Example of this invention. It is a conceptual diagram which shows the airtight holding | maintenance part of the important part of the water tank provided with the airtight holding | maintenance part by various Example of this invention. It is a conceptual diagram which shows the airtight holding | maintenance part of the important part of the water tank provided with the airtight holding | maintenance part by various Example of this invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

This is for the purpose of explaining in detail to such an extent that a person having ordinary knowledge in the technical field to which the present invention belongs can easily carry out the invention, and this limits the technical idea and category of the present invention. It does not mean that.

It should be noted that the size and shape of the components shown in the drawings can be exaggerated for the sake of clarity and convenience of description, and special justice is taken into account in view of the configuration and operation of the present invention. The terminology used depends on the intention or practice of the user or operator, and the justice for such terminology should be based on the contents of this specification as a whole.

FIG. 1 is a perspective view illustrating an overall structure of a water tank provided with an airtight holding unit according to an embodiment of the present invention, and FIG. 2 is provided with an airtight holding unit according to another embodiment of the present invention. Fig. 3 is a perspective view showing the overall structure of the water tank, and Fig. 3 is a conceptual diagram of a cut portion of Fig. 2.

According to an embodiment of the present invention, an aquarium equipped with an airtight holding unit includes a body part 10 and a cover 300 as a whole, and the body part 10 and the cover 300 are combined with each other by an airtight holding part 400 to maintain airtightness. It can be seen that it consists of a structure.

The body portion 10 is a portion where one side is opened and water is accommodated, and is also a portion that provides a space for mounting a cover 300 and an airtight holding portion 400, which will be described later.

In the body part 10, reference numeral 101 which is not explained is a drain pipe.

The cover 300 serves to finish the body part 10, and a temperature control tool 301 that heats or cools water stored in the body part 10 by a heat source supplied from the outside, and a water temperature controlled by the temperature control tool 301. It is also a part to which a thermostat (hereinafter not shown) for holding is attached.

The temperature control tool 301 is a heater (see the left side of FIG. 26) that heats the water contained in the body portion 10 with a power source supplied from the outside, or a refrigerant in a cooling cycle that is supplied from the outside and circulates. It is a cooling pipe (refer the right figure of Drawing 26) for fluid to flow.

The thermostat is usually attached to the fixed frame 160 on the outer surface of the body 10 shown in FIG. 2 and can adjust the temperature of the water to be stored, and will be described through various embodiments to be described later. However, it is desirable that the cover 300 is attached to hermetically maintain the space 900 provided in the body 10 to create a vacuum state.

In the cover 300, reference numeral 303 denotes a fixing bracket, 304 denotes a water inlet pipe, 305 denotes a water outlet pipe, and 306 denotes a temperature sensor.

The airtight holding part 400 serves to maintain the airtightness by mutually combining the body part 10 and the cover 300, and will be described in more detail with respect to various applicable embodiments in the latter half of the specification. become.

The present invention can be applied to the above-described embodiments, and the main part of the present invention will be described in detail below for more detailed explanation.

First, the airtight holding part 400 is for mutually combining the body part 10 and the cover 300 as described above to keep the airtight state in the body part 10, and the first folding as shown in FIGS. A structure including the part 401 and the second bent part 405 can be applied.

Therefore, the sealed other side of the body portion 10 and the wall surface portion are integrally formed by a drawing method, but this causes leakage of water from the joint portion when joining by a method such as welding. This is because there is a risk that the edible water is contaminated due to corrosion of the joints.

The expanded pipe portion 140 is a portion in which the opened one side edge portion of the body portion 10 is bent outward and is connected to the second bent portion 405 of the cover 300.

The first bent portion 401 is inserted into the inner wall of the expanded tube portion 140 formed along the open-side edge of the cylindrical body portion 10, and the cover 300 is formed so as to form a valley portion 307 juxtaposed with the inner wall. It is a part which the 2nd bending part 405 extends along the periphery of the.

The second bent portion 405 extends from the first bent portion 401, is coupled to the pipe expanding portion 140 by curling, and maintains the airtight state of the trunk portion 10 while being crimped along the outer wall of the trunk portion 10. It will be.

Therefore, the first bent portion 401 has a structure including the other side wall 402, the bottom portion 403, and the one side wall 404 so as to form the valley portion 307, and the other side wall 402 extends along the edge of the cover 300. 10, the bottom portion 403 extends from the end of the other side wall 402 toward the inner wall of the body portion 10 in parallel with the cover 300, and the one side wall 404 extends from the edge portion of the bottom portion 403. It is a structure that can be bent so as to contact the inner wall of the portion 10.

At this time, the second bent portion 405 extends from the one side wall 404 and is coupled to the expanded tube portion 140, and forms a circular cross section along the outer wall of the body portion 10 as shown in FIG. As described above, it can be formed in close contact with the outer wall of the body portion 10, or can be manufactured from a structure in which the second bent portion 405 covers the end portion of the tube expansion portion 140 as shown in FIG.

Further, the first bent portion 401 is forcibly fitted to the inner wall of the body portion 10 by the above-described structure, and the other side wall 402 formed to be inclined is an edge portion of the cover 300, that is, the body portion. 10 has a strong repulsive force against the pressure applied from the edge of the outer wall.

Therefore, when one side wall 404 of the first bent portion 401 is forcibly fitted to the inner wall of the body portion 10, the body portion 10 and the cover 300 are securely fixed. Therefore, the airtight holding part 400 including the high-quality second bent part 405 can be formed without causing the pipe expansion part 140 to be loosened or protruded during the curling process.

On the other hand, it is preferable that the packing material P is interposed along a portion where the body portion 10 and the cover 300 are in contact with each other, that is, along the formation direction of the airtight holding portion 400, and the packing material P is composed of the body portion 10 and the cover 300. Sealing up to a minute gap that can occur between and prevents water leakage.

The packing material P can usually be made of a material such as silicone. For example, the operator fixes the body part 10 and the cover 300 and then fixes the second bent part 405 and the expansion pipe 140. When the silicone is applied between them and the silicone is dried, the hermetic holding portion 400 can be formed by a method of curling.

On the other hand, the embodiments shown in FIGS. 6 to 14 can be applied to the present invention.
As shown in the figure, the body portion 10 of the present embodiment has a double wall structure including an inner cylinder 100 and an outer cylinder 200. The inner cylinder 100 and the outer cylinder 200 are made of a metal material such as aluminum or stainless steel.

The inner cylinder 100 usually has a substantially cylindrical shape, one side is opened, and the water storage space is provided inside.

The outer cylinder 200 has a larger diameter than that of the inner cylinder 100 and is usually formed in a cylindrical shape, and is disposed so as to accommodate the inner cylinder 100 therein.

That is, the outer cylinder 200 is disposed so as to surround the outer side of the inner cylinder 100, and an interval corresponding to a difference in diameter between the inner cylinder 100 and the outer cylinder 200 is formed between the inner cylinder 100 and the outer cylinder 200.

The open side end portions of the inner cylinder 100 and the outer cylinder 200 are joined and integrated with each other, so that the sealed space portion 900 having the above-described interval is formed between the inner cylinder 100 and the outer cylinder 200.

As a joining method between the end portions of the inner cylinder 100 and the outer cylinder 200, a method such as welding is used.

The sealed space portion 900 serves as a heat insulating layer in order to keep the warm water stored in the inner cylinder 100 warm.

In this way, an air layer can be formed in the space portion 900 so as to function as a heat insulating layer. Preferably, the space portion 900 is vacuumed so as to maximize the heat retention efficiency of the hot water stored in the hot water tank. The space 900 can be filled with a heat insulating material.

Various vacuum forming methods can be used to make the space portion 900 in a vacuum state, but in one example, a hole for vacuum release is formed in the outer cylinder 200, and the holes are integrated by joining. The inner cylinder 100 and the outer cylinder 200 are placed in a vacuum heating furnace and subjected to a vacuum heat treatment, and when a predetermined degree of vacuum is reached, a vacuum state can be achieved by sealing the vacuum vent hole.

In another example, it is possible to form a vacuum state by connecting a vacuum release device to the vacuum release hole, performing vacuum release, and sealing the vacuum release hole when a predetermined degree of vacuum is reached. is there.

The space 900 can be filled with a heat insulating material (not shown). At this time, as the heat insulating material, a heat insulating material excellent in heat insulation, such as styrofoam or foamed urethane, or a heat insulating material considering flame retardancy. Etc. can be used.

Filling the heat insulating material first forms a heat insulating material in close contact with the outer surface of the inner tube 100, and the inner tube 100 and the heat insulating material in this state are accommodated in the outer tube 200. In this state, the inner cylinder 100 and the cut portion of the outer cylinder 200 are joined and integrated together, and the space 900 is filled with a heat insulating material. Means that

The cover 300 is also made of a metal material such as aluminum or stainless steel. The cover 300 covers one side of the body portion 10 that is opened, specifically, one side of the inner cylinder 100 that is opened, and a water storage space inside the inner cylinder 100 is formed. It will be sealed.

The cover 300 can be combined with the body portion 10 by combining the edge portion of the cover 300 with the open side edge portion of the body portion 10 through a method such as curling or welding.

FIG. 6 shows an example of a curling process. First, the open side edge of the body part 10, specifically, the outer cylinder 200 and the inner cylinder 100 are joined and integrated so that the curling process is easily performed. In this example, the portion is bent outward from the body portion 10 and the edge of the cover 300 covers the folded edge of the body 10 and is crimped.

Examples of the curling process form are not limited to the above-described examples, and the curling process can be performed in various forms as shown in FIGS.

Specifically, in FIG. 7, the edge portion of the cover 300 is wound around the edge portion on the open side of the body portion 10 and then curled, and the end surface of the mutual coupling portion of the body portion 10 and the cover 300 is substantially circular. The example of the form curled so that it may have is shown.

8, in the example of the curling processing mode shown in FIG. 6, an example of the curling processing mode in which the mutual coupling portion of the cover 300 and the body portion 10 is bent one more downward and closely contacts the outer surface of the outer cylinder 200. Is shown.

On the other hand, the cover 300 can be joined to the body portion 10 by welding the edge portion of the cover 300 to the open side edge portion of the body portion 10. As such, various forms of examples can be presented.

For example, in FIG. 9, the open side edge of the body part 10, specifically, the part where the outer cylinder 200 and the inner cylinder 100 are joined and integrated is bent outwardly of the body part 10, and the cover 300 is formed. The edge portion of the inner cylinder 100 is bent so as to be in close contact with the inner peripheral surface of the upper end of the inner cylinder 100 and the upper surface of the bent portion, and the open side of the body portion 10 is arranged so that the cover 300 is inserted into the body portion 10. An example is shown in which the edge of the cover 300 and the edge on the open side of the body 10 are brought into contact with each other and then welded and joined together.

As another example, in FIG. 10, as shown in FIG. 9, a portion that is bent outward is formed at the opening side edge of the body part 10, and the cover 300 is placed on the opening side of the body part 10. An example of covering the open side of the body part 10 as described above, contacting the edge of the cover 300 so as to be adjacent to the edge of the open side of the body part 10, and then welding and joining the edge parts Show.

As described above, the packing P is interposed between the mutually coupled cover 300 and the body portion 10.

The packing P is included in order to maintain the airtightness of the water storage space in the hot water tank, and is made of synthetic rubber or silicone material.

The curling process or welding is performed in a state where the packing P is interposed at the mutual coupling portion between the body part 10 and the cover 300.

On the other hand, the body portion 10 is provided with various heating means for heating water stored therein, and in FIGS. 6 to 10, the water storage space of the body portion 10 is specifically shown by this heating means. 5 shows an example of a temperature control tool 301 such as a pipe heater that is through-coupled from one side of the cover 300 so as to be connected to the water storage space in the inner cylinder 100.

In addition, a temperature sensor 306 for measuring the temperature of water stored in the body 10 is provided, and in the figure, the temperature sensor 306 is provided on the surface of the cover 300.

However, the position where the temperature control tool 301 and the temperature sensor 306 are provided in the water tank including the body part 10 and the cover 300 is not limited to the illustrated example, and can be provided at various positions.

And the water tank which consists of such a structure can be attached by the fixed bracket 303 in the inside of a cooling / heating device, a water purifier, or a vending machine.

In the figure, an example is shown in which the cover 300 is provided with the fixing bracket 303 in a state where the opened one side of the body portion 10 faces upward.

However, the installation location of the fixing bracket 303 and the direction in which the opened one side of the body part 10 is not limited to the illustrated example, and the cover 300 is in a state in which the opened one side of the body part 10 faces downward. The fixing bracket 303 can also be provided at various positions as required.

In the above description, reference numerals 304 and 305, which are not described in detail, respectively indicate a water inlet pipe and a water outlet pipe provided in a general hot water tank, and 101 indicates a drain pipe. .

On the other hand, the embodiment as shown in FIG. 11 can be applied to the present invention.

That is, unlike the above embodiment, the present invention is not a structure in which the body part 10 and the cover 300 are coupled, but a hot water tank is configured by a structure in which the upper body part 10u and the lower body part 10d are coupled. .

In the following, the structure of the upper and lower body parts will be mainly described. Of the reference numerals and the like in the drawings, those not described will be replaced with the description of the embodiment.

The present embodiment includes a cylindrical upper body part 10u whose lower side is opened, and a cylindrical lower body part 10d whose upper side is opened and whose upper edge is joined to the lower side edge of the upper body part 10u by welding. . And packing P intervenes in the joint part of upper body part 10u and lower body part 10d.

In particular, the upper body portion 10u and the lower body portion 10d have a double-wall structure, similar to the body portion 10 of the above-described embodiment.

That is, each of the upper body part 10u and the lower body part 10d is open on one side (the lower side in the inner cylinder 100u included in the upper body part 10u and the upper side in the inner cylinder 100d included in the lower body part 10d). The cylindrical inner cylinders 100u and 100d and the cylindrical outer cylinders 200u and 200d arranged so as to surround the inner cylinders.

Therefore, the end portions of the inner cylinders 100u and 100d and the outer cylinders 200u and 200d are joined and integrated to form a sealed space 900 between the inner cylinders 100u and 100d and the outer cylinders 200u and 200d.

As in the first embodiment, the sealed space 900 can be in a vacuum state or filled with a heat insulating material for efficient heat insulation of the hot water tank.

FIG. 11 shows a state in which the peripheral portions of the upper body portion 10u and the lower body portion 10d are combined with each other by welding, and this coupling method is not particularly limited. Thus, they can be combined by curling processes having various forms.

On the other hand, the present invention can be applied to the embodiments as shown in FIGS.

Unlike the embodiment described above, this embodiment has a structure of a hot water tank in which the body portion 10 and the cover 300 are combined so as to be separable from each other.

Specifically, the body portion 10 included in the present embodiment includes the body portion 10 having the same double wall structure as in the above-described embodiment in FIGS. 6 to 10.

At this time, the space portion 900 between the inner cylinder 100 and the outer cylinder 200 in the body portion 10 is filled with a heat insulating material excellent in heat insulation, such as styrofoam or urethane foam, or a heat insulating material considering flame retardancy. Can be done.

However, it further includes a fuselage coupling portion 10c formed along the circumferential direction on the outer peripheral surface on the open side of the fuselage portion 10, and a screw thread 100s is formed on the outer peripheral surface of the fuselage coupling portion 10c.

And the cover 300 couple | bonded so that the open side of the trunk | drum 10 may be covered is further formed along the circumferential direction in the outer peripheral surface, and further includes the cover coupling | bond part 300c which can be screwed together with the trunk | drum coupling | bond part 10c, A screw groove 300s is formed on the inner peripheral surface of the cover coupling portion 300c to be screwed into the thread 100s of the body coupling portion 10c.

As described above, the body coupling portion 10c and the cover coupling portion 300c are respectively formed on the body portion 10 and the cover 300 of this embodiment, and the body portion 10 and the cover 300 are coupled so as to be separable from each other by screwing together. be able to.

Further, a packing P is interposed between the open side edge portion of the body portion 10 and the edge portion of the cover 300 that are close to each other when they are coupled to each other, in order to maintain the airtightness in the body portion 10. Can.

At this time, a bent portion that is bent outward in an arc shape so that an area to pressurize the packing P may be formed at each edge portion of the body portion 10 and the cover 300.

In the packing P, as shown in FIG. 12, a plurality of protrusions 300p are formed along the circumferential direction on the outer peripheral surface of the packing P, and the airtightness between the body 10 and the cover 300 is further improved. it can.

In addition, the packing P is formed with a locking piece 300h that is bent twice at a right angle downward along the circumferential direction, and can be coupled so as to be hooked to the edge of the body part 10, This facilitates the coupling or separation of the packing P during disassembly and assembly.

As described above, the structure according to the present embodiment further includes a separable structure, specifically, the body coupling part 10c and the cover coupling part 300c, so that the body part 10 and the cover 300 are shown in FIGS. Since it does not need to be joined by mutual curling or welding as in the embodiment, it is not limited to metal materials. That is, it can be made of a metal material and can be made of a ceramic material.

Assuming that the body part 10 and the cover 300 are made of a metal material, when the body connection part 10c and the cover connection part 300c are made of a plastic material, the body connection part 10c and the cover connection part 300c are made of the body part 10. As a method of coupling to the cover 300 and the cover 300, an insert injection method or a forced press-fitting method is used.

At this time, each of the outer peripheral surface of the trunk portion 10 and the outer peripheral surface of the cover 300 has a protruding shape so that the trunk coupling portion 10c and the cover coupling portion 300c can be firmly coupled to the trunk portion 10 and the cover 300 without floating. Can be provided.

Although not shown, when the body part 10 and the cover 300 are made of a ceramic material, the body joint part 10c and the cover joint part 300c are also made of a ceramic material and can be integrally formed.

And the inner cylinder 100 and the outer cylinder 200 of the body part 10 are not integrally joined to each other by welding or the like, as in the embodiment shown in FIGS. While being formed, the inner cylinder 100 and the outer cylinder 200 can be molded to have a space 900.

Further, although this embodiment is not shown in FIG. 12, as shown in FIG. 13, the loss of heat energy held by the water contained in the body 10 toward the cover 300 is minimized. Accordingly, the heat insulating material 300i having excellent flame retardancy and heat insulation properties, which is covered by the upper portion of the cover 300, may be further included.

On the other hand, the present invention can be applied to the structure shown in FIG. That is, this embodiment has a structure of a hot water tank in which the cover 300 and the body portion 10 are detachably combined by a screw coupling method, as in the embodiment shown in FIGS.

The structure of the cover 300 is the same as that of the third embodiment. However, since the structure of the body portion 10 is different from that of the third embodiment, the structure of the body portion 10 having different points will be described below. In the drawings, those not described in the drawings are replaced with the description of the above-described embodiment.

The body portion 10 of this embodiment is similar to the embodiment shown in FIGS. 6 to 13 and has a double wall structure, that is, an inner cylinder 100 and an outer cylinder 200, but each end of the inner cylinder 100 and the outer cylinder 200. The parts are mutually joined and not integrated, and the outer cylinder 200 is inserted and coupled to the body coupling part 10 c formed on the outer peripheral surface of the inner cylinder 100.

Specifically, on the outer peripheral surface on the open side of the inner cylinder 100, a body coupling portion 10c having the same function as the embodiment shown in FIGS. 12 and 13 is formed.

At this time, one side of the body coupling portion 10c, as a specific example, a fitting portion 100sb extending vertically downward is formed along the circumferential direction of the body coupling portion 10c at the lower end portion of the outer peripheral surface of the body coupling portion 10c. The

The outer cylinder 200 is coupled to the insertion portion 100 sb while the outer peripheral surface of the insertion portion 100 sb is in surface contact with the inner peripheral surface of the open side end portion of the outer cylinder 200.

At this time, at least one fitting protrusion 100sbp is provided along the circumferential direction on the outer peripheral surface of the fitting portion 100sb (in FIG. 14, two fitting protrusions 100spb separated in the vertical direction on the outer peripheral surface of the fitting portion 100sb. A fitting groove 100g can be formed on the inner peripheral surface of the end of the outer cylinder 200 corresponding to the fitting protrusion 100sbp. .

The outer cylinder 200 and the fitting portion 100sb can easily find the original position of the outer cylinder 200 by the fitting groove 100g and the fitting protrusion 100sbp fitted into the fitting groove 100g, and are robust and stable. Can be fitted.

A space 900 between the outer cylinder 200 and the inner cylinder 100 is formed only in a gap between the fitting groove 100sb and the inner cylinder 100, and the space 900 is in a vacuum state or the space 900 is kept warm. Can be filled with material.

On the other hand, the packing P is interposed along the edge of the inner cylinder 100 that is bent outwardly from the edge of the inner cylinder 100 and the edge of the cover 300 into an arc shape.

On the other hand, as shown in FIGS. 15 to 26, the body portion 10 can be applied with a double structure for improving heat insulation performance. Specifically, the body portion 10 has a structure including the inner cylinder 100 and the outer cylinder 200. Can be applied.

The inner cylinder 100 is a space for containing water, and the outer cylinder 200 has a structure that surrounds the inner cylinder 100 while forming a space portion 900 between the outer cylinder 200 and the cover 300, which will be described later. The inner cylinder 100 and the outer cylinder 200 are finished, and the airtight holding part 400 is mounted between the inner cylinder 100 and the cover 300 or between the outer cylinder 200 and the cover 300. It is a structure that maintains a sealed state.

Here, the outer cylinder 200 is integrally coupled to an opened edge of the inner cylinder 100, and a vacuum is formed between the inner surface of the outer cylinder 200 and the outer surface of the inner cylinder 100 in order to improve the heat insulation performance. It is desirable to maintain the state.

At this time, the inner cylinder 100 and the outer cylinder 200 can be made of a metal material such as stainless steel or aluminum in consideration of the convenience and durability of molding.

Furthermore, the inner cylinder 100 and the outer cylinder 200 can be made of various materials such as glass, ceramics, and jars.

Moreover, since the space part 900 maintains the vacuum state, the outer surface of the outer cylinder 200 has the lowest thermal conductivity, so that the water stored in the inner cylinder 100 can be kept warm or cold. .

On the other hand, the airtight holding part 400 is a body part 10 having a double structure of the inner cylinder 100 and the outer cylinder 200 as shown in the figure, and as shown in FIGS. 15 and 16, the first combined body 406, the second combined body 407, A structure including packing 408 can be applied.

That is, the first coupling body 406 is coupled to the outer edge of the outer cylinder 200, and a screw portion 406s is formed along the outer peripheral surface. The second coupling body 407 is coupled to the outer surface of the cover 300, and A screw portion 407 s is formed along the inner peripheral surface so as to be screwed with the coupling body 406, and the packing 408 is interposed between the end portion of the body portion 10 and the inner edge portion of the cover 300, and It plays a role to make it sealed.

Therefore, the outer cylinder 200 is formed with a support protrusion 200p along the outer peripheral surface of the outer cylinder 200 so as to support one side of the first combined body 406, and the cover 300 has one side of the second combined body 407. A structure in which a support protrusion 300p is formed so as to protrude along the outer peripheral surface of the cover 300 is applied.

At this time, when the cover 300 and the body portion 100 are coupled, the second coupling body 407 is screwed between the screw sections 406 s and 407 s while covering the first coupling body 406.

In addition, the packing 408 can be made of rubber or silicone material, and can have various shapes including an O-ring whose longitudinal section is O-shaped.

A third bent portion 15 that is bent outward so that the packing 408 is coupled can be formed at the end of the body portion 10. In FIG. An example is shown in which the third bent portion 15 is formed by integrally bending the opened one end.

The cover 300 is preferably formed with a fourth bent portion 35 that is bent to face the third bent portion 15 so that the packing 408 is crimped and fixed along the edge portion. A structure in which a protruding portion protruding toward the packing 408 is further applied to one side or one side of each of the bent portion 15 and the fourth bent portion 35 in FIG. The structure of protrusion part 15 'protruded from the 3rd bending part 15 is shown.

15 and 16, the packing 408 has a substantially U-shaped longitudinal section so that the outer end of the third bent portion 15 is coupled to the lower side. Since the fitting is performed while covering the upper surface of the third bent portion 15, the packing 408 can be easily attached and detached when the body portion 10 is washed.

The packing 408 has a ring-shaped protruding line along a surface facing the third or fourth bent portion 15, 35 toward the third bent portion 15 or the fourth bent portion 35. At least one or more 409 protrudes, and a plurality of small protrusions 408 ′ protrude from the inner side or the outer side of the protrusion line 409 along the surface facing the third bent portion 15 or the fourth bent portion 35. Thus, the fastening force between the body portion 10 and the cover 300 can be strengthened.

In addition, an extension 409 ′ extending upward and downward is integrally formed at the inner end of the packing 408 in order to maintain the airtightness while being in contact with the body 10 and the inner edge of the cover 300. It is desirable.

Therefore, as the area where the fourth bent portion 35 is pressed against the packing 408 is increased, the sealing performance of the body portion 10 is enhanced.

On the other hand, as shown in FIGS. 17 and 18, the hermetic holding part 400 may be configured to include a locking part 406 ′, a fastening part 407 ′, and a packing 408.

That is, the locking portion 406 ′ is combined with the outer edge of the outer cylinder 200, and a locking protrusion 406 ′ p is formed to protrude on one side, and the fastening portion 407 ′ includes the fixed body 407 ′ a and the locking piece 407 ′. h including a blade body 407 ′ b formed therein and coupled to the locking portion 406 ′, and the packing 408 is interposed between the end portion of the body portion 10 and the inner edge portion of the cover 300, and Serves to ensure that the interior is sealed.

Among these, the fixing body 407′a of the fastening portion 407 ′ is attached to the outer surface of the cover 300, and the blade body 407′b extends so as to be rotatable along the edge of the fixing body 407′a. Thus, a locking piece 407 ′ h that engages with the locking protrusion 406 ′ p protrudes toward the outer surface side of the outer cylinder 200.

For the connection between the fixed body 407′a and the blade body 407′b, various connection methods such as hinge connection (not shown) by a hinge pin are used.

However, in the figure, the fastening portion 407 ′ is made of a plastic material or the like, and the fixed body 407′a and the blade body 407′b are thin at the connecting portion so that they can be rotated upward and downward. Is shown.

The locking piece 407'h is coupled while being hooked on the locking projection 406'p as the blade body 407'b rotates toward the body part 10, and then the outer surface of the body part 10, more specifically, the outer cylinder. As the distance from the outer surface of 200 increases, the bond is disassembled.

At this time, the linear distance from the connecting portion of the fixed body 407′a and the blade body 407′b to the locking piece 407′h is formed outside the lower portion of the locking portion 406 ′ on the horizontal line at the same point. Since the distance to the lower end of the locking projection 406'p is slightly shorter, the locking piece 223 is hooked by exceeding the lower end of the locking projection 406'p.

When the locking piece 407′h is hooked on the locking projection 406′p in this way, the cover 200 is bonded to the body portion 10 while being crimped.

Here, it is desirable that at least two fastening portions 407 ′ are formed along the edge of the cover 300, which provides convenience in the rotation of the blade body 407 ′ b, along the outer surface of the outer cylinder 200. It is desirable that another fastening portion 407 ′ is provided at a position facing one fastening portion 407 ′ so that the crimping force by the fastening portion 407 ′ is provided in a balanced manner.

On the other hand, the structure as shown in FIG. 10 can be applied to the third bent portion 15 and the fourth bent portion 35.

That is, grooves 15 ″ and 35 ″ are formed in the third and fourth bent portions 15 and 35, respectively, and both side edges of the grooves 15 ″ and 35 ″ are protruded. It has a shape.

Since the third and fourth bent portions 15 and 35 have the shape described above, when the packing 408 is interposed, the packing 408 is concentrated on both sides of the grooves 15 ″ and 35 ″ due to the protruding portions. Can be pressed automatically, and this further improves the sealing performance.

On the other hand, in addition to the embodiment described above, the airtight holding portion 400 is assembled between the inner cylinder 100 and the cover 300 or between the outer cylinder 200 and the cover 300 as shown in FIGS. Including a finished surface and a seal member.

Another embodiment to be described below relates to an airtight holding portion 400 including a finish surface and a sealing member, and the finish surface is extended along the edge of the cover 300 and combined with the inner tube 100 or the outer tube 200. In addition, the seal member is attached to the finished surface and plays a role of maintaining an airtight state while contacting the inner cylinder 100 or the outer cylinder 200.

In the following description, terms used will be briefly described.

First, the “outer edge portion” and the “inner edge portion” refer to inner and outer portions close to the edge portion based on the edge portions of the inner cylinder 100 and the outer cylinder 200 that are integrally formed by welding. The site | part which the sealing member to perform closely_contact | adheres is shown.

And, “the inner surface on the end portion side” and “the outer surface on the end portion side” are bonded to each other on the inner surface or the outer surface of the inner cylinder 100 and the outer cylinder 200 which are integrally formed by welding, facing a finished surface described later. The inner or outer surface.

First, as shown in FIG. 20, a structure in which the finish surface 410 of the cover 300 is screwed with the outer cylinder 200 and the seal member 420 is in contact with the outer edge of the outer cylinder 200 can be applied.

That is, the cover 300 is formed between the shielding plate 310 that seals the opened side of the inner cylinder 100 and the shielding plate 310 and the finish surface 410 along the edge of the shielding plate 310. It can be made to include a contact groove 320 that faces the inner edge.

The contact groove 320 is formed for the purpose of reinforcement to appropriately distribute the load and stress caused by the temperature control tool 301 and the thermostat 302 attached to the cover 300.

Here, the finished surface 410 is screwed with the outer surface on the end portion side of the outer cylinder 200, and the seal member 420 is interposed between the contact groove 320 and the finished surface 410, and the edge of the inner cylinder 100 and the outer cylinder are disposed. By being in close contact with the outer edge of 200, airtightness can be maintained.

On the other hand, in the present invention, a structure in which the finish surface of the cover 300 is screwed into the inner cylinder 100 and the seal member is in contact with the inner side of the inner cylinder 100 can be applied. Will be described.

First, as shown in FIG. 21, the cover 300 is formed between the shielding plate 310 that seals the opened side of the inner cylinder 100 and the shielding plate 310 and the finish surface 430 along the edge of the shielding plate 310. Then, the contact groove 330 that faces the inner edge of the inner cylinder 100 and the finishing sleeve 340 that extends from the end of the finishing surface 430 and is bent, is attached with the seal member 440, and covers the outer cylinder and the inner cylinder 100 edge. It can produce in the form containing.

The contact groove 330 is formed for the purpose of reinforcing the load and stress appropriately distributed by the temperature control tool 301 and the thermostat 302 attached to the cover 300, and the finish surface sleeve 340 is attached with the seal member 440. It is provided to provide a space.

Therefore, the finishing surface 430 extends from the edge of the contact groove 330 and faces the inner surface on the end side of the inner cylinder 100 so as to be screwed together. The seal member 440 has one side on the inner cylinder 100 and the outer cylinder. By being in close contact with the edge portion of 200 and the other side in close contact with the inner edge portion of the inner cylinder 100, airtightness can be maintained.

Then, as shown in FIG. 22, the cover 300 extends from the end portion of the finish surface 450 and the shielding plate 310 that seals the opened side of the inner cylinder 100, and is fitted with the seal member 460. And a finishing sleeve 350 that covers the edge of the inner cylinder 100.

The finishing sleeve 350 is provided to provide a space for mounting the seal member 460.

Therefore, the finishing surface 450 faces the inner surface on the end side of the inner cylinder 100 and is screwed together, and the seal member 460 is in close contact with the edge of the inner cylinder 100 and the outer cylinder 200 and the other side is the inner cylinder. By tightly contacting the inner edge of 100, airtightness can be maintained.

Then, as shown in FIG. 23, the cover 300 extends from the end of the finished surface 470 and the shielding plate 310 that seals the opened side of the inner cylinder 100, and is bent, and the edges of the outer cylinder 200 and the inner cylinder 100. And a valley 370 that is formed along the outer surface of the finish surface 470 and into which the seal member 480 is fitted.

The finishing sleeve 360 is provided in order to protect welded portions such as edges of the inner cylinder 100 and the outer cylinder 200 which are integrally formed from external physical and chemical impacts.

The trough 370 is provided to provide a space for the seal member 480 to be mounted.

Here, the finishing surface 470 faces the inner surface on the end side of the inner cylinder and is screwed together, and the seal member 480 is attached to the valley portion 370 and is in close contact with the inner surface on the end side of the inner cylinder 100. Thus, airtightness can be maintained.

Then, as shown in FIG. 24, the cover 300 extends from the end portion of the finishing plate 470 and the shielding plate 310 that seals the opened one side of the inner cylinder 100, and is bent to the outer cylinder 200 and the edge of the inner cylinder 100. , And a trough 370 formed along the outer surface of the finished surface 470.

The finishing sleeve 360 and the valley 370 are provided to provide a space for mounting the seal member 480, respectively.

Here, the finishing surface 470 faces the inner surface of the inner cylinder 100 on the end portion side and is screwed together, and the seal member 480 is in close contact with the edges of the inner cylinder 100 and the outer cylinder 200, so that the end of the inner cylinder 100 is Airtightness can be maintained by the method of closely contacting the inner surface on the part side.

At this time, the seal member 480 is attached to the finishing sleeve 360, and one side closely contacts the edge of the inner cylinder 100 and the outer cylinder 200, and the other side closely contacts the inner edge of the inner cylinder 100, A structure including a ring-shaped second sealing tool 484 that is attached to the valley portion 370 and is in close contact with the inner surface on the end portion side of the inner cylinder 100 can be applied.

On the other hand, in the present invention, as shown in FIG. 25, a structure in which a seal member 490 ′ is interposed between the edge of the inner cylinder 100 and the outer cylinder 200 integrated by welding and the finished surface 490 can be applied.

The cover 300 is formed between the shielding plate 310 that seals the opened one side of the inner cylinder 100 and the shielding plate 310 and the finish surface 490 along the edge of the shielding plate 310. And a contact groove 380 facing the inner edge.

Here, the finishing surface 490 extends in parallel to the shielding plate 310 from the edge of the contact groove 380, and the seal member 490 'is joined by welding, and the edges of the inner cylinder 100 and the outer cylinder 200 forming an integral shape. It is possible to maintain airtightness in such a manner that the curved surface 490 ″ extending from the portion and facing the finish surface 490 is in close contact.

At this time, the cover 300 is connected to the inner side of the cover 300 by the sealing ring block 600 having one side coupled to the contact groove 380 and the finished surface 490 and the other side coupled between the folding surface 490 ″ and the outer surface of the outer cylinder 200. The cylinder 100 and the outer cylinder 200 are configured to be sealed, and the sealing ring block 600 includes a first ring block 610 and a second ring block 620.

The first ring block 610 has a ring shape as a whole, is provided with a ring protrusion 612 having a shape corresponding to the contact groove 380, extends from the ring protrusion 612, and finishes for receiving the finish surface 490. The groove 614 is provided.

The second ring block 620 also has an overall ring shape like the first ring block 610, and is provided with an attachment step 622 for attaching the folding surface 490 ″, and the first ring block 610 is provided. It consists of a structure that comes to join.

The first ring block 610 and the second ring block 620 are desirably connected to each other by a plurality of fixing bolts 630 that are mounted to be separated along the direction in which the ring blocks 610 and 620 are formed.

Meanwhile, it is desirable that one side of the outer cylinder 200 further includes a vacuum holding unit 500 for discharging residual air between the inner cylinder 100 and the outer cylinder 200. This is necessary for maintaining the space 900 in a vacuum state after the edges of the outer cylinder 200 are welded together and are integrally formed, and is also necessary for maintenance.

It can be seen that the vacuum holding unit 500 has a structure including an air discharge pipe 510 provided outside the outer cylinder 200 and a protective cover 520 that is coupled to one side of the outer cylinder 200 and protects the air discharge pipe 510.

Further, according to the present invention, as shown in FIGS. 27 to 29 together with FIG. 1, the pressure-resistant tool is formed on the outer surface of the outer cylinder 200, and the airtight holding portion 400 is formed by curling and welding or filler P or the like. It goes without saying that the embodiment to be applied is applied.

That is, on the outer surface of the outer cylinder 200, when residual air is exhausted through the air exhaust pipe 510 as shown in the drawing, the pressure inside and outside the space portion 900 balances and the shapes of the inner cylinder 100 and the outer cylinder 200 are maintained. It is desirable that a pressure-resistant tool is formed.

The pressure-resistant tool is provided in order to maintain the balance between the inner and outer pressures of the space 900 and to maintain the shape of the inner and outer cylinders 100, 200. The pressure-proof tool includes the first protrusion ring 210 and the second protrusion. The structure includes a ring 534.

The pressure-resistant tool is formed in the shape of the inner and outer cylinders 100 and 200 due to the imbalance of the pressure inside and outside the space portion 900 in the process of discharging the residual air to keep the space portion 900 in a vacuum state through the vacuum holding portion 500 described later. In addition to the purpose of preventing the deformation, it is also provided to improve the overall structural strength.

The first protruding ring 210 is protruded in the form of a ring along at least one outer peripheral surface in the vertical direction on the outer surface of the outer cylinder 200, and the second protruding ring 534 is a bottom surface of the inner cylinder 100. A drain tube 101 communicating from the center of the tube is provided on the bottom surface 530 of the outer cylinder 200 penetrating the center, and at least one or more concentrically projecting from the drain tube 101 as a center.

The first and second protrusion rings 210 and 534 do not have the same protruding structure or pleats (creases) per unit area, and have a substantial area increased by a pleat structure compared to a smooth and flat panel. Are provided on the outer peripheral surface and the bottom surface of the outer cylinder 200, respectively, due to higher structural strength.

On the other hand, the cover 300 is for finishing the body part 10 as described above. As shown in FIGS. 1, 27 and 28, the cover 300 is recessed toward the inside of the body part 10 along the edge part. 307 is formed in a ring shape, and an airtight holding part 400 described later extends from the edge of the valley part 307, and after the valley part 307 is fitted and joined to the edge part of the body part 10, the curling process and the packing material P The airtight state is firmly maintained by a method such as filling or welding.

The trough portion 307 firmly fastens the cover 300 and the body portion 10 in the process of first joining them, and efficiently supports and supports loads of various members mounted on the cover 300 such as the pressure-resistant device. It is provided in order to improve the structural strength, and includes one side wall 307 ′, a bottom portion 307 ″, and another side wall 307 ″ ″.

The one side wall 307 ′ extends from the edge of the cover 300 and is bent at a right angle with the cover 300 inside the body portion 10, and the bottom 307 ″ extends from the end of the one side wall 307 ′ to the cover 300. The other side wall 307 ″ ′ is formed by extending from the bottom portion 307 ″ and being bent in parallel to the one side wall 307 ′.

Here, the airtight holding portion 400 described later extends from the edge of the other side wall 307 ″ ″, and the outer surface of the other side wall 307 ″ ″ contacts the inner wall of the inner cylinder 100.

At this time, it is desirable that the steam vent pipe 308 penetrates the cover 300. When the body portion 10 is used as a hot water tank, the steam vent pipe 308 generates steam generated by heating water in the inner cylinder 100. It is provided to forcibly discharge steam upward so as to prevent mixing into the water pipe 305 or backflow.

On the other hand, the airtight holding part 400 is provided for maintaining the airtight state between the body part 100 and the cover 300 as described above. As shown in FIG. A structure including the sixth bent portion 65 and the welded joint portion W and the packing material P can be applied.

In the fifth bent portion 45, a joint surface formed by abutting the open side edge portion of the inner cylinder 100 and the open side edge portion of the outer tube 200 is bent in a flange shape toward the outside of the outer tube 200. It is a part provided.

The sixth bent portion 65 extends from the edge of the cover 300, that is, the edge of the other side wall 307 ″ ″ of the valley 307. It is a part formed so as to cover the shape, and is also a part that maintains a substantially airtight state.

The weld joint W is a portion provided by welding along the end of the fifth bent portion 45, that is, the portion where the ends of the inner cylinder 100 and the outer cylinder 200 are in contact with each other. It is formed to prevent the outside air from flowing into.

The packing material P is packed between the upper surface of the coupling surface and the sixth bent portion 65, and normally a material such as silicone is used, but in detail, the sixth bent portion is used. 65 and silicone are applied along the forming direction of the bonding surface, respectively, and when hardened, the cover 300 and the body portion 10 are mutually bonded, and then the sixth bent portion 65 is formed through a method such as curling. become.

Then, as shown in FIG. 28, the hermetic holding part 400 combines another reinforcing piece 55 with the first coupling part 46, then welds and fills the packing material P, and then forms the sixth bent part 65. Structure embodiments can be applied.

That is, the first coupling portion 46 is a portion formed by a coupling surface formed by abutting the open side edge portion of the inner cylinder 100 and the open side edge portion of the outer cylinder 200, and a reinforcing piece 55 described later. It is also a part where the weld joint W is formed.

The reinforcing piece 55 has a ring shape that is coupled along the outer edge portion of the coupling surface, and it is desirable to apply the same material as that of the inner cylinder 100 and the outer cylinder 200 so that welding is easily performed. .

The weld joint portion W is a portion provided by performing welding in a ring shape along a portion where the first joint portion 46 and the reinforcing piece 55 abut, and is a space along the direction in which the first joint portion 46 is formed. It is formed so that the reinforcing piece 55 that blocks the outside air from flowing into the portion 900 and provides a space for forming a sixth bent portion 65 to be described later is combined.

The sixth bent portion 65 extends from the edge of the cover 300 that is in contact with the inner surface of the coupling surface, that is, the edge of the other side wall 307 ″ ″ of the valley 307, and the end of the coupling surface. A packing material P is packed between the upper portion of the reinforcing piece 55 and the second bent portion 65.

Therefore, in FIG. 27 (see the dotted phantom line extending from the upper surface of the cover 300) and the upper surface of the second bent portion 65 shown in FIG. 28, water leaks on the basis of the valley portion 307. Also, it is formed in the same manner or lower than the upper surface of the cover 300 on which the electric device such as the temperature sensor 306 is mounted so that water does not hit the electric device mounted on the upper surface of the cover 300. It is desirable to do so.

Moreover, the airtight holding | maintenance part 400 can apply the Example formed by couple | bonding the reinforcement piece 55 with the 1st coupling | bond part 46 and welding with the edge part of the cover 300 like FIG.

That is, the first coupling portion 46 is a portion formed by a coupling surface formed by abutting the open side edge portion of the inner cylinder 100 and the open side edge portion of the outer cylinder 200 with each other. It is also a part where the coupling part W is formed.

The reinforcing piece 55 is a ring-shaped member that is coupled along the outer edge of the coupling surface. Usually, the same material as the inner tube 100 and the outer tube 200 is applied so that welding can be performed. Is desirable.

The second coupling portion 66 is a portion formed by surface contact between the edge portion of the cover 300 and the reinforcing piece 55, and is welded in a ring shape along a portion where the first coupling portion 46 and the reinforcing piece 55 abut. By carrying out, the first weld joint W1 is provided, welding is performed in a ring shape along the ends of the first joint 46 and the second joint 65, and the second weld joint W2 is provided. .

The first weld joint portion W1 blocks outside air from flowing into the space portion 900 along the direction in which the first joint portion 46 is formed, and a space where a sixth bent portion 65 described later is formed. It is formed so that the reinforcing pieces 55 to be provided are combined.

At this time, the second weld joint portion W2 is formed in order to maintain an airtight state by finally sealing between the body portion 10 and the cover 300.

Further, a structure in which a reinforcing ring protrusion 308 protruding along the inner edge of the reinforcing piece 55 for forming the second coupling portion 66 is formed on the upper surface of the cover 300 can be applied. The ring protrusion 308 is provided for the purpose of improving the structural strength like the valley 307.

On the other hand, in order to maintain the heat insulating effect continuously as described above, it is most important for the vacuum holding unit 500 to reduce the thermal conductivity of the body unit 10 to the maximum. Since it is necessary to make 900 close to a vacuum state, it can be said that it was provided.

In addition, referring to FIG. 1 and FIG. 27, the protective cover 520 preferably discharges the residual air in the space portion 900 through the air discharge pipe 510 and the air discharge pipe 510 with another finishing tool (not shown). After sealing, the air exhaust pipe 510 is covered with the following structure.

That is, the protective cover 520 is attached to the outer surface of the outer cylinder 200 from the outer surface of the outer cylinder 200, and from the lower end edge of the cylindrical wall 521 toward the drain pipe 101 connected from the center of the bottom surface of the inner cylinder 100. A bottom surface 521 ′ that is extended through the center and a contact angle that extends from the edge of the center through which the bottom surface 521 ′ extends toward the bottom surface 530 of the outer cylinder 200 and is in close contact with the bottom surface 530 of the outer cylinder 200 ( One structure including horn) 523 can be applied.

That is, the structure of the protective cover 520 is attached / detached when it is necessary to discharge the residual air in the space 900 with a vacuum pump or the like through the air discharge pipe 510 when the vacuum state of the space 900 is weakened by long-term use. It is a structure that can be combined.

Here, the edge portion of the contact angle 523 is preferably fixed in close contact with the contact ring protrusion 532 protruding in a ring shape from the bottom surface 530 of the outer cylinder 200 around the drain pipe 101.

At this time, when the structure of the protective cover 520 is described in detail, it can be seen that the protective cover 520 is detachably coupled to the coupling step surface 220 formed with a step along the outer surface on the lower side of the outer cylinder 200.

In FIG. 27, reference numeral 230 not described indicates a finishing sleeve provided to couple the bottom surface 530 of the outer cylinder 200 on which the second projecting ring 534 is formed to the outer peripheral surface of the outer cylinder 200.

The cylindrical wall 521 of the protective cover 520 is provided with a first locking ring groove 522 that is recessed along the outer peripheral surface toward the coupling step surface 220, and the coupling step surface 220 has a first locking ring. A second locking ring groove 222 that is recessed toward the inner cylinder 100 is provided at a position corresponding to the ring groove 522, and the first and second locking ring grooves 522 and 222 are connected to each other to be sealed. Is the structure.

As described above, the present invention facilitates cleaning of the water tank and ensures airtightness, enhances heat insulation performance, and minimizes energy consumption for heating or cooling the water in the water tank. It can be seen that the basic technical idea is to provide a water tank provided with an airtight holding portion that can be suppressed to the limit.

The embodiments according to the present invention have been described above. However, these embodiments are merely illustrative, and various modifications and embodiments within the equivalent scope can be used by those having ordinary knowledge in the technical field. You will understand that is possible.

Therefore, the technical protection scope of the present invention should be determined by the appended claims.

10 body part 15 3rd bending part 15 'protrusion part 15'',35''groove 35 4th bending part 45 5th bending part 46 1st connection part 55 reinforcement piece 65 6th folding Curved portion 66 Second connecting portion 100 Inner tube 101 Drain tube 140 Expanded portion 160 Fixed frame 200 Outer tube 210 First protruding ring 220 Connecting step surface 222 Second locking ring groove 230 Finishing sleeve 300 Cover 301 Temperature control tool 302 Thermostat 303 Fixing bracket 304 Water inlet pipe 305 Water outlet pipe 306 Temperature sensor 307 Valley 307 ′ One side wall 307 ″ Bottom side 307 ″ ″ Other side wall 310 Shielding plates 320, 330, 380 Contact grooves 340, 350, 360 Finishing sleeve 370 Valley portion 400 Airtight holding portion 401 First bent portion 402 Other side wall 403 Bottom portion 404 One side wall 405 Second bent portion 406 First combined body 06s Screw part 407 Second combined body 407s Screw part 408 Packing 408 ′ Small protrusion 409 Projection line 409 ′ Extension part 406 ′ Locking part 406′p Locking protrusion 407 ′ Fastening part 407′a Fixed body 407′b Blade body 407'h Locking piece 410, 430, 450, 470, 490 Finished surface 420, 440, 460, 480, 490 'Seal member 482 First shilling tool 484 Second shilling tool 490''Folding surface 500 Vacuum holding part 510 Air discharge pipe 520 Protective cover 521 Cylinder wall 521 ′ Bottom surface 522 First locking ring groove 523 Contact angle
530 Bottom surface 532 Contact ring protrusion 534 Second protrusion ring 600 Sealing ring block 610 First ring block 620 Second ring block 630 Fixing bolt 900 Space

Claims (38)

A body part where one side is opened and water is accommodated;
Finishing the body part, and a cover on which a temperature control tool for heating or cooling water stored in the body part by a heat source supplied from the outside is mounted;
A water tank provided with an airtight holding part, including an airtight holding part that combines the body part and the cover and maintains airtightness. The airtight holding part is
Inserted into the inner wall of the expanded tube portion formed along the open side edge of the cylindrical body portion, and formed along the edge of the cover so as to form a valley along the inner wall. 1 bent part,
2. The airtight holding according to claim 1, further comprising: a second bent portion that extends from the first bent portion, is combined with the expanded portion by curling, and is crimped along an outer wall of the trunk portion. A tank equipped with a section. The first bent portion is
The other side wall bent obliquely to the inner wall of the body part along the edge of the cover;
A bottom portion extending in parallel to the cover from an end portion of the other side portion toward an inner wall of the body portion;
A side wall extending from the edge of the bottom portion and bent so as to contact the inner wall of the body portion;
The trough is composed of the one side wall, the other side wall, and the bottom,
The water tank provided with the airtight holding part according to claim 2, wherein the second bent part extends from the one side wall and is combined with the expanded pipe part. The airtight holding part according to claim 3, wherein the second bent part is combined with the pipe expansion part to form a circular cross section along the outer wall of the body part or to be molded in close contact. Aquarium. It consists of a cylindrical inner cylinder opened on one side and a cylindrical outer cylinder arranged so as to surround the inner cylinder, and the end portions of the inner cylinder and the outer cylinder are mutually joined and integrated, A body part in which a sealed space is formed between the inner cylinder and the outer cylinder;
A cover whose edge is coupled to the edge on the open side of the body by curling or welding; and
Including a packing interposed at an interconnection site between the body part and the cover,
The water tank provided with an airtight holding part, wherein the space part is filled with a heat insulating material or maintained in a vacuum state. A cylindrical upper body with an open bottom;
A cylindrical lower body part whose upper side is opened and whose upper edge part is joined to the lower edge part of the upper body part by curling or welding;
Including a packing interposed in an interconnection site between the upper body part and the lower body part,
Each of the upper body part and the lower body part is composed of a cylindrical inner cylinder opened on one side and a cylindrical outer cylinder arranged so as to surround the inner cylinder, and the inner cylinder and the outer cylinder, respectively. The end portions of each other are integrated and integrated, and a sealed space portion is formed between the inner cylinder and the outer cylinder,
The said space part is a water tank provided with the airtight holding | maintenance part with which a heat insulating material is filled or maintained in a vacuum state. A cylindrical inner cylinder open on one side;
A fuselage coupling portion formed along the circumferential direction from the outer peripheral surface on the open side of the inner cylinder, formed with a thread on the outer peripheral surface, and formed with a fitting portion extending vertically along the circumferential direction on one side. When,
A cylindrical shape in which an inner circumferential surface of the end portion is fitted and joined to the fitting portion so as to be in contact with an outer circumferential surface of the fitting portion, is disposed so as to surround the inner cylinder, and a sealed space portion is formed between the cylindrical portion and the cylinder. An outer cylinder,
A cover covering the open side of the inner cylinder;
A cover coupling portion that is formed along the circumferential direction from the outer peripheral surface of the cover, a screw groove is formed on the inner peripheral surface to correspond to the screw thread, and can be screwed together with the body coupling portion;
A packing interposed between edges on the side where the inner cylinder and the cover are mutually coupled,
The said space part is a water tank provided with the airtight holding | maintenance part with which a heat insulating material is filled or maintained in a vacuum state. The fitting projection is formed to protrude on the outer peripheral surface of the fitting portion, and the fitting groove for fitting the fitting projection is formed on the inner peripheral surface of the end portion of the outer cylinder. A water tank provided with the airtight holding part described. In hot water tanks installed in cold water heaters, water purifiers, or vending machines,
It consists of a cylindrical inner cylinder opened on one side and a cylindrical outer cylinder arranged so as to surround the inner cylinder, and the end portions of the inner cylinder and the outer cylinder are mutually joined and integrated, A body part in which a sealed space is formed between the inner cylinder and the outer cylinder;
A heat insulating material filled in the space;
A fuselage coupling portion formed along the circumferential direction from the outer peripheral surface of the body portion, and a screw thread formed on the outer peripheral surface;
A cover covering the open side of the body part;
It is formed along the circumferential direction from the outer peripheral surface of the body portion, and a screw groove corresponding to a screw thread is formed on the inner peripheral surface, so that it can be screwed together with the body coupling portion. A cover joint,
A water tank provided with an airtight holding part, including a packing interposed between edges on the side where the body part and the cover are mutually coupled. A body part including an outer cylinder that surrounds the inner cylinder while forming a space between an inner cylinder that is open on one side and contains water and an outer surface of the inner cylinder;
A cover to finish the inner cylinder and the outer cylinder, and to which a temperature control tool for heating or cooling water stored in the body part by a heat source supplied from the outside is mounted,
An airtight holding portion that is mounted between the inner cylinder and the cover or between the outer cylinder and the cover and maintains a sealed state of the inner cylinder and the outer cylinder;
The outer cylinder is integrally coupled with an open edge of the inner cylinder.
A water tank provided with an airtight holding portion that is maintained in a vacuum state between the inner surface of the outer tube and the outer surface of the inner tube. The airtight holding part is
A first combined body combined with an outer edge of the outer cylinder and having a screw portion formed along an outer peripheral surface;
A second combined body that is combined with an outer surface of the cover and has a thread portion formed along an inner peripheral surface so as to be screwed with the first combined body;
A packing that is interposed between an end of the body part and an inner edge of the cover, and seals the inside of the body part;
A support protrusion is formed to protrude along the outer peripheral surface of the outer cylinder so that one side of the first combined body is supported on the outer cylinder.
The water tank provided with the airtight holding part according to claim 10, wherein a support protrusion is formed to protrude along the outer peripheral surface of the cover so that one side of the second combined body is supported on the cover. The airtight holding part is
A locking part that is combined with the outer edge of the outer cylinder and has a locking projection protruding on one side;
A fixed body fixed to the outer surface of the cover, and a locking piece that extends rotatably along an edge of the fixed body and engages with the locking projection toward the outer surface side of the outer cylinder. A fastening portion including a protruded blade body, wherein the cover is coupled to or dismantled from the body portion;
The water tank provided with the airtight holding part according to claim 10, comprising a packing that is interposed between an end of the body part and an inner edge part of the cover and seals the inside of the body part. At the end of the body part, a third bent part bent outward for the packing to be coupled,
The airtight according to claim 11 or 12, wherein a fourth bent portion that is bent facing the third bent portion is formed so that the packing is crimped and fixed along an edge portion of the cover. A water tank equipped with a holding part. The airtight holding according to claim 13, wherein one of the third bent portion and the fourth bent portion further includes a protruding portion that protrudes toward the packing side. A tank equipped with a section. The packing is
At least one ring-shaped protrusion line protrudes along the surface facing the third bent portion or the fourth bent portion toward the third bent portion or the fourth bent portion,
A plurality of small projections are formed on the inner side or the outer side of the projection line along the surface facing the third bent portion or the fourth bent portion,
The airtight holding part according to claim 13, wherein an extension part extending upward and downward and contacting the body part and the inner edge part of the cover is integrally formed at an inner end part of the packing. Aquarium. The airtight holding part is
A finishing surface extending along an edge of the cover and coupled to the inner cylinder or the outer cylinder;
The water tank provided with the airtight holding part according to claim 10, comprising a seal member that is mounted on the finished surface and maintains an airtight state while being in contact with the inner cylinder or the outer cylinder. The airtight holding part according to claim 16, wherein a finish surface of the cover is screwed with the outer cylinder coupled to the inner cylinder, and the seal member is in contact with an outer edge of the outer cylinder. Aquarium. The airtight holding part according to claim 16, wherein the finish surface of the cover is screwed with the inner cylinder coupled to the outer cylinder, and the seal member is in contact with an inner edge of the inner cylinder. Aquarium. The said sealing member is a water tank provided with the airtight holding | maintenance part of Claim 16 interposed between the edge part of the said inner cylinder and the said outer cylinder, and the said finish surface which are integrated by welding coupling | bonding. The cover is
A shielding plate for sealing the opened one side of the inner cylinder;
A contact groove formed between the shielding plate and the finished surface along the edge of the shielding plate and facing the inner edge of the inner cylinder;
The finished surface is screwed with the outer surface on the end side of the outer cylinder,
The airtight holding part according to claim 17, wherein the seal member is interposed between the contact groove and the finished surface, and is provided in close contact with an edge part of the inner cylinder and an outer edge part of the outer cylinder. A water tank equipped with. The cover is
A shielding plate for sealing the opened one side of the inner cylinder;
A contact groove formed between the shielding plate and the finished surface along the edge of the shielding plate and facing the inner edge of the inner cylinder;
A finish sleeve extending from an end portion of the finish surface, bent, the seal member is mounted, and covering an edge of the outer cylinder and the inner cylinder;
The finishing surface extends from the edge of the contact groove, faces the inner surface of the inner cylinder on the end side, and is screwed together.
The water tank provided with the airtight holding part according to claim 18, wherein the seal member is provided in close contact with an edge of the inner cylinder and the outer cylinder and an inner edge of the inner cylinder. The cover is
A shielding plate for sealing the opened one side of the inner cylinder;
A finish sleeve extending from an end portion of the finish surface, bent, the seal member is mounted, and covering the outer cylinder and an edge of the inner cylinder;
The finished surface faces the inner surface on the end side of the inner cylinder and is screwed together,
The water tank provided with the airtight holding part according to claim 18, wherein the seal member is provided in close contact with an edge of the inner cylinder and the outer cylinder and an inner edge of the inner cylinder. The cover is
A shielding plate for sealing the opened one side of the inner cylinder;
A finishing sleeve that extends from the end of the finishing surface and is bent and covers the outer cylinder and the edge of the inner cylinder;
A trough that is formed along the outer surface of the finished surface and to which the ring-shaped seal member is attached;
The finished surface faces the inner surface on the end side of the inner cylinder and is screwed together,
The water tank provided with the airtight holding part according to claim 18, wherein the seal member is provided in close contact with an inner surface on an end side of the inner cylinder. The cover is
A shielding plate for sealing the opened one side of the inner cylinder;
A finishing sleeve that extends from the end of the finishing surface and is bent and covers the outer cylinder and the edge of the inner cylinder;
A trough formed along the outer surface of the finished surface,
The finished surface faces the inner surface on the end side of the inner cylinder and is screwed together,
The water tank provided with the airtight holding part according to claim 18, wherein the sealing member is provided in close contact with an edge of the inner cylinder and the outer cylinder and an inner edge of the inner cylinder. The sealing member is
A first sealing tool mounted on the finishing sleeve and provided in close contact with an edge of the inner cylinder and the outer cylinder and an inner edge of the inner cylinder;
The water tank provided with the airtight holding part according to claim 24, including a ring-shaped second sealing tool attached to the valley part and provided in close contact with an inner edge of the inner cylinder. The cover is
A shielding plate for sealing the opened one side of the inner cylinder;
A contact groove formed between the shielding plate and the finished surface along the edge of the shielding plate and facing the inner edge of the inner cylinder;
The finishing surface extends in parallel to the shielding plate from the edge of the contact groove,
The airtight holding part according to claim 19, wherein the seal member is provided in close contact with a folded curved surface extending from an edge of the inner cylinder and the outer cylinder which are integrated by welding and facing the finished surface. A water tank provided. The cover includes
The contact groove and the finished surface are combined with one side, and the other side is combined between the folding surface and the outer surface of the outer cylinder, and further includes a sealing ring block that seals the cover, the inner cylinder, and the outer cylinder. The water tank provided with the airtight holding part according to claim 26. The sealing ring block is
A ring protrusion having a shape corresponding to the contact groove, a first ring block extending from the ring protrusion and provided with a finishing groove for accommodating the finishing surface;
An attachment step for attaching the folding surface, and a second ring block coupled to the first ring block;
28. The first ring block and the second ring block are combined with each other by a plurality of fixing bolts mounted separately from each other in a direction in which the ring block or the like is formed. A water tank equipped with an airtight holding part. The water tank provided with an airtight holding part according to claim 10, further comprising a vacuum holding part for discharging residual air between the inner cylinder and the outer cylinder on one side of the outer cylinder. . The vacuum holding unit is an air discharge pipe provided on one side of the outer cylinder,
30. A water tank equipped with an airtight holding part according to claim 29, comprising a protective cover which is combined with one side of the outer cylinder and protects the air discharge pipe. The airtight maintaining part is formed by bending a joint surface formed by mutual contact between the open side edge of the inner cylinder and the open side edge of the outer cylinder into a flange shape toward the outside of the outer cylinder. A first bent portion provided;
A second bent portion extending from the edge of the cover and covering the upper and lower portions of the coupling surface;
A weld joint provided along an end of the first bent portion;
The water tank provided with the airtight holding part according to claim 10, comprising a packing material packed between an upper surface of the coupling surface and the bent part. The airtight maintaining part is
A first coupling portion formed with a coupling surface formed by abutting the open side edge portion of the inner cylinder and the open side edge portion of the outer cylinder;
A ring-shaped reinforcing piece coupled along the outer edge of the coupling surface;
A weld joint provided in a ring shape along a portion where the first joint and the reinforcing piece are in contact with each other;
A second bent portion that extends from an edge of the cover that contacts the inner side surface of the coupling surface and is formed so as to cover the end of the coupling surface and the upper and lower portions of the reinforcing piece;
The water tank provided with the airtight holding part according to claim 10, comprising a packing material packed between an end of the first coupling part and an upper part of the reinforcing piece and the second bent part. The hermeticity maintaining portion includes an opening side edge portion of the inner cylinder and a first coupling portion formed with a coupling surface formed by abutting the opening side edge portion of the outer cylinder.
A ring-shaped reinforcing piece coupled along the outer edge of the coupling surface;
A second coupling part formed by contact between the edge of the cover and the reinforcing piece;
A first weld joint provided in a ring shape along a portion where the first joint and the reinforcing piece are in contact with each other;
The water tank provided with the hermetic holding portion according to claim 10, comprising a second welded joint portion provided in a ring shape along the end portions of the first and second joint portions. 34. The airtight holding part according to claim 33, wherein a reinforcing ring protrusion is formed on the upper surface of the cover so as to protrude along an inner edge part of the reinforcing piece on which the second coupling part is formed. Aquarium. The airtight holding part according to claim 10, wherein after the residual air is discharged, a pressure-resistant tool for maintaining the shape of the inner cylinder and the outer cylinder is formed on the outer surface of the outer cylinder. Aquarium. The pressure resistant tool is:
A first protruding ring protruding in a ring shape along the outer peripheral surface in the vertical direction on the outer surface of the outer cylinder;
A drain pipe communicating from the center of the bottom surface of the inner cylinder is provided on the bottom surface of the outer cylinder passing through the center, and at least one second projection projecting concentrically around the drain pipe The water tank provided with the airtight holding part according to claim 35 including a ring. The protective cover is
A cylindrical wall that is detachably coupled to the outer surface of the lower side of the outer cylinder;
From the lower end edge of the cylindrical wall, extended toward the drain tube side communicating from the center of the bottom surface of the inner cylinder, and the bottom surface through which the center passes,
A contact angle (one) that extends from the center edge of the bottom surface penetrating toward the bottom surface of the outer cylinder and closely contacts the bottom surface of the outer cylinder;
31. The airtight holding according to claim 30, wherein an edge portion of the contact angle is closely fixed to a contact ring protrusion protruding in a ring shape from the bottom surface of the outer cylinder around the drain pipe. A tank equipped with a section. The protective cover is
It is detachably coupled to a coupling step surface formed with a step along the outer surface on the lower side of the outer cylinder,
The protective cover is provided with a first locking ring groove recessed along the outer peripheral surface toward the coupling step surface side,
The coupling step surface is provided with a second locking ring groove recessed toward the inner cylinder side at a position corresponding to the first locking ring groove,
The water tank provided with the airtight holding part according to claim 30, wherein the first and second locking ring grooves are sealed by mutual coupling.

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