Heat preservation container and heat purification integrated water purifier

Abstract

The utility model discloses a heat preservation container and heat purification integrated water purifier which comprises a main body, a cover body and a locking piece, and the locking piece is connected with the main body and can be switched between an avoiding position and a locking position relative to the main body in a bending mode; the locking plate is bent to the avoiding position to avoid the cover body, so that the cover body can cover the opening end of the main body or be separated from the main body; and the locking plate is bent to the locking position, and the cover body is pressed and locked on the main body. According to the heat preservation container, the main body and the cover body can be detachably locked through the locking plate which can be bent and switched between the avoiding position and the locking position, the problem of high maintenance cost caused by overall replacement of the heat preservation container due to damage of internal accessories is solved, the heat preservation container can be maintained, impurities entering the heat preservation container can be regularly cleaned after the cover body is opened, and the service life of the heat preservation container is prolonged. According to the scheme, the main body and the cover body are small in disassembly and assembly difficulty, and the practicability is high.

Description

Technical Field

[0001] This application relates to the field of water purifier technology, specifically to a water purifier with an insulated tank and integrated heat and purification. Background Technology

[0002] Integrated water purifiers and water heaters, which provide both room temperature and hot water, are gaining popularity and becoming an indispensable household appliance. These purifiers typically consist of a filter cartridge and an instant heating element. Their working principle involves the filter cartridge directly outputting purified water after filtering tap water, or the instant heating element heating the water before outputting it. This allows for the dispensing of either room temperature or hot water when connected to a tap. However, traditional integrated water purifiers have some drawbacks. For example, because the instant heating element needs to heat water to a predetermined temperature quickly, the amount of water that can be heated in that short time is limited, resulting in a smaller water supply within a short period.

[0003] To address these issues, some integrated water purifiers with heating and cooling functions include a heat preservation tank. Water heated by the instantaneous heating element can be stored in the heat preservation tank. When the user inputs a command for hot water, the water in the heat preservation tank re-enters the instantaneous heating element for secondary heating. Since the water in the heat preservation tank already has a relatively high temperature, the time required for secondary heating to the required temperature is greatly shortened, effectively increasing the supply of hot water in a short period of time.

[0004] Insulated water tanks on the market consist of a main body and a lid. The main body and lid are mostly connected by welding, which not only ensures airtightness and reduces the risk of leakage, but also has relatively obvious drawbacks. For example, the insulation tank usually needs to be equipped with accessories such as temperature sensing probes. If the accessories are damaged, they cannot be replaced because the main body and lid are welded together and cannot be disassembled. The insulation tank must be replaced as a whole, which is relatively expensive. In addition, impurities that enter the insulation tank cannot be removed, affecting the purity of the water. Utility Model Content

[0005] This application provides a heat preservation tank to improve the technical problems of high maintenance costs and the inability to remove internal impurities caused by welding of the main body and cover of the heat preservation tank in existing integrated water purifiers.

[0006] The technical solution adopted in this application is as follows:

[0007] An insulated liner includes a main body, a cover, and a locking plate. The locking plate is connected to the main body and can be switched between a clearance position and a locking position relative to the main body by bending. When the locking plate is bent to the clearance position, it avoids the cover, allowing the cover to close onto the opening end of the main body or separate from the main body. When the locking plate is bent to the locking position, it presses and locks the cover to the main body.

[0008] In this technical solution, the main body and cover of the insulation tank are detachably locked using a locking plate that can be bent and switched between a clearance position and a locking position. Simply bend the locking plate to the clearance position and then separate the cover from the main body to allow for the repair or replacement of internal components or the cleaning of internal impurities. This convenient operation avoids the high-cost repair problem of replacing the entire insulation tank due to damage to some components. It enables a repairable insulation tank and also improves the purity of the insulation water through regular cleaning of impurities. The main body and cover of this solution are easy to assemble and disassemble and are highly practical.

[0009] The cover is provided with a guide fitting part that is adapted to the locking piece. The locking piece, located in the avoidance position, guides the cover to close the main body by passing through the guide fitting part.

[0010] In this technical solution, during the process of closing the cover onto the main body, the locking piece and the guide fitting part need to be aligned beforehand. This provides the cover with a foolproof closing mechanism, preventing the cover from being installed backwards or off-center. Then, the cooperation between the guide fitting part and the locking piece guides the cover to stably and reliably close onto the main body. Therefore, the locking piece not only locks the cover to the main body but also guides the cover to close onto or separate from the main body.

[0011] The guide fitting part is configured as a notch formed on the edge of the cover. One end of the locking piece is connected to the open end of the main body, and the other end passes through the notch and is bent to press the cover.

[0012] In this technical solution, an embodiment is provided in which the guide mating part is set as a notch, which is convenient for processing, and the bending angle of the locking piece from the locking position to the avoidance position is less restricted.

[0013] The guide fitting part is configured as an insertion hole formed in the cover body. One end of the locking piece is connected to the open end of the main body, and the other end passes through the insertion hole and is bent to press the cover body.

[0014] In this technical solution, an embodiment is provided in which the guide mating part is set as an insertion hole, which is convenient for processing, and the bending direction of the locking piece from the avoidance position to the locking position is less restricted.

[0015] The locking piece includes a bending portion and a pressing portion. The locking piece is bent through the bending portion and presses the cover through the pressing portion. The cross-sectional area of ​​the bending portion is smaller than the cross-sectional area of ​​the pressing portion.

[0016] In this technical solution, the cross-sectional area of ​​the bending part is smaller than that of the pressing part, which makes bending less strenuous and also maintains a larger contact area between the pressing part and the cover, thereby improving the reliability of the pressing part in pressing and locking the cover.

[0017] The locking piece is integrally formed with the main body, and multiple locking pieces are arranged at intervals along the circumference of the main body.

[0018] In this technical solution, the locking piece is integrally formed with the main body, which is easy to process, has high strength, and reduces the risk of the locking piece breaking off from the main body. Multiple locking pieces are arranged at intervals along the circumference of the main body, which can form multi-directional pressure and locking in the circumference of the cover, ensuring the firmness of the cover covering the main body, and also helping to improve the sealing performance of the cover covering the main body and reduce the risk of water leakage.

[0019] The cover is provided with a limiting groove, which includes an outer limiting wall and an inner limiting wall. When the cover closes the main body, the opening end of the main body is limited within the limiting groove. The outer limiting wall and the inner limiting wall restrict the deformation of the main body on the outer and inner sides of the opening end, respectively.

[0020] In this technical solution, when the cover closes to the main body, the open end of the main body is confined within the limiting groove. On the one hand, the restriction effect of the outer limiting wall and the inner limiting wall improves the reliability of the fit between the cover and the main body, and helps to prevent the cover from shifting on the main body. On the other hand, the restriction effect of the limiting wall and the inner limiting wall can also correct the deformed main body, making the shape of the main body more regular, and reducing the risk of water leakage caused by deformation.

[0021] A sealing body is provided between the inner limiting wall and the main body. The sealing body has a sealing skirt and an anti-detachment protrusion on both sides. The sealing skirt abuts against the inner wall of the main body, and the anti-detachment protrusion abuts against the inner limiting wall.

[0022] In this technical solution, a seal is formed between the cover and the main body by the sealing body, which prevents water leakage from the heat preservation liner, blocks pollutants and bacteria from the outside air from entering, and improves the heat preservation performance of the heat preservation liner. The sealing body abuts against the inner wall of the main body through the sealing skirt to form an interference fit, which helps to further improve the sealing effect. The anti-detachment protrusion abuts against the inner limiting wall, which increases the tightness of the fit between the sealing body and the main body and the cover respectively, improving the sealing effect and increasing the installation firmness.

[0023] The water purifier disclosed in this application includes an outer shell and a main support frame disposed within the outer shell, and also includes a heat preservation tank as described above. The main support frame is provided with a receiving cavity for accommodating the heat preservation tank, and the cover is provided with a plurality of support columns, which abut against the outer shell.

[0024] In this technical solution, the cover is supported by multiple support columns, which improves the shell's resistance to compression deformation and reduces the risk of the shell being dented or deformed due to impacts from external objects.

[0025] The integrated water purifier and heat purifier also includes an insulation component covering the heat-insulating tank. The cover has a connecting part with screw holes, which is screwed to the main support. The insulation component has an operation window, through which the connecting part is exposed to the external view.

[0026] In this technical solution, the insulation component can improve the insulation effect of the insulation tank and reduce the heat conduction from the insulation tank to the main support, which helps to reduce the overall temperature rise of the water purifier during operation.

[0027] Due to the adoption of the above technical solution, the technical effects achieved by this application are as follows: the main body and cover of the heat preservation tank are detachably locked by a locking plate that can be bent and switched between a clearance position and a locking position. Simply bend the locking plate to the clearance position and then separate the cover from the main body to allow for the repair or replacement of internal components or the cleaning of internal impurities. This convenient operation avoids the high-cost repair problem of replacing the entire heat preservation tank due to damage to some components, enabling a repairable heat preservation tank and improving the purity of the heat preservation water through regular cleaning of impurities. The main body and cover of this solution are easy to assemble and disassemble and are highly practical. Attached Figure Description

[0028] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0029] Figure 1 A schematic diagram of the structure of the heat-insulating bladder provided in the embodiments of this application. Figure 1 This shows the state of the locking plate when it is in the avoidance position;

[0030] Figure 2 This is a top view of the insulated bladder provided in an embodiment of this application, showing the state when the locking plate is in the locked position;

[0031] Figure 3 This is a cross-sectional view of the insulated liner provided in an embodiment of this application;

[0032] Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle;

[0033] Figure 5 This is a schematic diagram of the main body provided in the embodiments of this application;

[0034] Figure 6 for Figure 5 Enlarged view of the structure at point B;

[0035] Figure 7 A schematic diagram of the structure of the cover provided in the embodiments of this application. Figure 1 ;

[0036] Figure 8 A schematic diagram of the structure of the cover provided in the embodiments of this application. Figure 2 ;

[0037] Figure 9 This is a schematic diagram of the structure of the sealing body provided in the embodiments of this application;

[0038] Figure 10 for Figure 9 Enlarged view of the structure at point C;

[0039] Figure 11 Assembly of the integrated water purifier and heat purifier provided in the embodiments of this application Figure 1 ;

[0040] Figure 12 Assembly of the integrated water purifier and heat purifier provided in the embodiments of this application Figure 2 ;

[0041] Figure 13 for Figure 12 Enlarged view of the structure at point D;

[0042] Figure 14 Assembly of the integrated water purifier and heat purifier provided in the embodiments of this application Figure 3 .

[0043] List of components and reference numerals:

[0044] 1. Main body;

[0045] 2. Cover body, 21. Notch, 22. Limiting groove, 23. Outer limiting wall, 24. Inner limiting wall, 25. Support column, 26. Connecting part;

[0046] 3 locking piece, 31 bending part, 32 pressing part;

[0047] 4. Sealing body, 41. Sealing skirt, 42. Anti-detachment protrusion;

[0048] 5. Outer shell;

[0049] 6 main supports;

[0050] 7. Insulation components; 71. Operating window. Detailed Implementation

[0051] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0052] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0053] Furthermore, it should be understood in the description of this application that the terms "upper," "lower," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "lateral," and "longitudinal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0054] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0055] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0056] In the embodiments of this application, a water purifier integrating a heat preservation tank and a water purification unit is provided. For ease of explanation and understanding, the following content provided in this application is based on the illustrated product structure. Of course, those skilled in the art will understand that the above structure is only a specific example and illustrative illustration, and does not constitute a specific limitation on the technical solution provided in this application.

[0057] refer to Figures 1 to 10As shown, the heat-insulating liner provided in this application includes a main body 1, a cover 2, and a locking plate 3. The locking plate 3 is connected to the main body 1 and can be switched between a clearance position and a locking position relative to the main body 1 by bending. When the locking plate 3 is bent to the clearance position, it avoids the cover 2, allowing the cover 2 to close onto the opening end of the main body 1 or separate from the main body 1. When the locking plate 3 is bent to the locking position, it presses and locks the cover 2 to the main body 1.

[0058] Specifically, such as Figure 1 and Figure 5 The diagram illustrates the state of the locking plate 3 in the avoidance position. At this time, the cover 2 is closed to the main body 1 and can be separated from the main body 1, as shown. Figure 2 The diagram illustrates the state of the locking plate 3 in the locked position. At this time, the locking plate 3 presses and locks the cover 2 to the main body 1, preventing the cover 2 from separating from the main body 1. In this technical solution, the main body 1 and cover 2 of the insulation tank are detachably locked using the locking plate 3, which can be bent and switched between a clearance position and a locked position. Simply bend the locking plate 3 to the clearance position and then separate the cover 2 from the main body 1 to allow for the repair or replacement of internal components or the cleaning of internal impurities. This convenient operation avoids the high-cost repair problem of replacing the entire insulation tank due to damage to some components. It enables the repairability of the insulation tank and also allows for the periodic cleaning of impurities entering the main body 1 by opening the cover 2, improving the purity of the insulation water. The main body 1 and cover 2 in this solution are easy to assemble and disassemble and are highly practical.

[0059] In a preferred embodiment of this application, the cover 2 is provided with a guide fitting portion adapted to the locking piece 3. The locking piece 3, located in the avoidance position, guides the cover 2 to close the main body 1 by passing through the guide fitting portion. In this technical solution, during the process of closing the cover 2 to the main body 1, the locking piece 3 needs to be pre-aligned with the guide fitting portion, thereby providing the cover 1 with a foolproof closing function, preventing the cover 2 from being installed backwards or off-center. Then, the cooperation between the guide fitting portion and the locking piece 3 guides the cover 2 to stably and reliably close the main body 1. Therefore, the locking piece 3 can not only lock the cover 2 to the main body 1, but also guide the cover 2 to close to or separate from the main body 1.

[0060] Regarding the structure of the guide mating part, in a preferred embodiment, such as Figure 1 and Figure 7As shown, the guide fitting part is configured as a notch 21 formed on the edge of the cover 2. One end of the locking piece 3 is connected to the open end of the main body 1, and the other end passes through the notch 21 and is bent to hold the cover 2. In this technical solution, an embodiment is provided in which the guide fitting part is configured as a notch 21, which is convenient for processing. Moreover, the bending angle of the locking piece 3 from the locking position to the avoidance position is less restricted. For example, when the locking piece 3 is bent to a horizontal state, it is located in the locking position. When the locking piece 3 is bent 90° from the locking position to a vertical state, it is located in the avoidance position. However, the locking piece 3 can continue to bend at a certain angle based on the vertical state, and it will still not interfere with the disassembly and assembly process of the cover 2. Specifically, the notch 21 can be slightly larger than the locking piece 3 to facilitate the locking piece 3 to enter and exit the notch 21, improve the ease of alignment between the locking piece 3 and the notch 21, and reduce jamming.

[0061] Regarding the structure of the guide fitting part, in another preferred embodiment not shown in the accompanying drawings, the guide fitting part can also be configured as an insertion hole formed in the cover body. One end of the locking piece is connected to the open end of the main body, and the other end protrudes from the insertion hole and is bent to press against the cover body. This technical solution provides an embodiment where the guide fitting part is configured as an insertion hole, which facilitates processing. Moreover, since the area around the insertion hole after the locking piece is inserted is the upper surface of the cover body, there are fewer restrictions on the bending direction of the locking piece from the avoidance position to the locking position. The locking piece can be bent at any angle to press against the cover body.

[0062] Regarding the structure of the locking piece 3, in a preferred embodiment, as follows: Figure 2 and Figure 6 As shown, the locking piece 3 includes a bent portion 31 and a holding portion 32. The locking piece 3 is bent by the bent portion 31 and holds the cover 2 by the holding portion 32. The cross-sectional area of ​​the bent portion 31 is smaller than that of the holding portion 32. In this technical solution, the cross-sectional area of ​​the bent portion 31 is smaller than that of the holding portion 32, which makes bending easier and maintains a larger contact area between the holding portion 32 and the cover 2, thus improving the reliability of the holding portion 32 in locking the cover 2. As an alternative embodiment, the locking piece 3 can also be a rectangular structure, a triangular structure, etc. In addition, in order to avoid other structures on the cover 2 when the locking piece 3 is in the locked position, the locking piece 3 can also be set to an irregular shape.

[0063] As a preferred embodiment of this application, such as Figure 5As shown, the locking piece 3 is integrally formed with the main body 1, and multiple locking pieces 3 are arranged at intervals along the circumference of the main body 1. For example, the main body of the heat preservation liner is generally made of stainless steel. Therefore, the locking piece 3 is designed as an integrally formed stainless steel structure with the main body 1. After the locking piece 3 is bent to the locking position, it has high stability and is not easy to automatically bend towards the avoidance position, ensuring the reliability of locking the cover 2 and the main body 1. In this technical solution, the locking piece 3 is integrally formed with the main body 1, which is easy to process, has high strength, and reduces the risk of the locking piece 3 breaking off from the main body 1. Multiple locking pieces 3 are arranged at intervals along the circumference of the main body 1, which can form multi-directional pressure and locking in the circumference of the cover 2, ensuring the firmness of the cover 2 covering the main body 1, and also helping to improve the sealing performance of the cover 2 covering the main body 1, reducing the risk of water leakage.

[0064] Specifically, the accompanying drawings illustrate an embodiment where the main body 1 and the cover 2 are generally square in structure. At least two locking tabs 3 can be provided on each of the four sides of the main body 1 to enhance the locking reliability of the cover 2. In other embodiments, for example, when the main body and the cover are generally circular in structure, multiple locking tabs can be arranged at equal intervals along the circumference of the main body.

[0065] As a preferred embodiment of this application, such as Figure 3 , Figure 4 and Figure 8 As shown, the cover 2 is provided with a limiting groove 22, which includes an outer limiting wall 23 and an inner limiting wall 24. When the cover 2 covers the main body 1, the open end of the main body 1 is limited within the limiting groove 22. The outer limiting wall 23 and the inner limiting wall 24 restrict the deformation of the main body 1 on the outer and inner sides of the open end, respectively. In this technical solution, when the cover 2 covers the main body 1, the open end of the main body 1 is limited within the limiting groove 22. On the one hand, the limiting effect of the outer limiting wall 23 and the inner limiting wall 24 improves the reliability of the fit between the cover 2 and the main body 1, and helps to prevent the cover 2 from shifting on the main body 1. On the other hand, the limiting effect of the limiting wall and the inner limiting wall 24 can also correct the deformed main body 1, making the shape of the main body 1 more regular, and reducing the risk of water leakage caused by deformation. It should be noted that the outer limiting wall 23 and the inner limiting wall 24 are not limited to being strictly pressed against the side wall of the main body 1. They can maintain a certain redundant gap with the side wall of the main body 1. This can prevent the main body 1 from being excessively deformed, and also facilitate the smooth cooperation between the cover 2 and the main body 1, reducing jamming.

[0066] Furthermore, such as Figure 4 , Figure 8 , Figure 9 and Figure 10As shown, a sealing body 4 is provided between the inner limiting wall 24 and the main body 1. The sealing body 4 has a sealing skirt 41 and an anti-detachment protrusion 42 on each side. The sealing skirt 41 abuts against the inner wall of the main body 1, and the anti-detachment protrusion 42 abuts against the inner limiting wall 24. In this technical solution, the sealing body 4 forms a seal between the cover 2 and the main body 1, preventing water leakage from the insulation liner and blocking pollutants and bacteria from entering from the outside air, while also improving the insulation performance of the insulation liner. The sealing body 4 abuts against the inner wall of the main body 1 through the sealing skirt 41, forming an interference fit, which helps to further improve the sealing effect. The anti-detachment protrusion 42 abuts against the inner limiting wall 24, increasing the tightness of the fit between the sealing body 4 and the main body 1 and the cover 2 respectively, improving both the sealing effect and the installation stability. In a preferred embodiment, the sealing body 4 can be made of EPDM (ethylene propylene diene monomer) material, which has good heat resistance and is virtually odorless.

[0067] like Figure 7 , Figure 11 , Figure 12 and Figure 13 As shown, the water purifier with integrated heat and water purification provided in this application includes a shell 5 and a main support 6 disposed within the shell 5, as well as a heat-insulating tank as described above. The main support 6 has a receiving cavity for accommodating the heat-insulating tank, and the cover 2 has multiple support columns 25, which abut against the shell 5. Those skilled in the art will understand that, for aesthetic purposes, the shell of a water purifier generally has a relatively smooth and regular surface structure, while the main support is generally an irregular structure. Therefore, it is difficult to ensure that all parts are tightly fitted to the main support or its accessories, resulting in a certain width of gap between the shell and the main support. This makes the shell prone to denting and deformation upon impact. Therefore, in this technical solution, the cover 2 provides support to the shell 5 through multiple support columns 25, improving the shell 5's resistance to compression deformation and reducing the risk of denting and deformation caused by external objects hitting the shell 5.

[0068] Furthermore, such as Figure 7 and Figure 14As shown, the integrated water purifier and heat treatment unit also includes an insulation component 7 covering the heat-insulating tank. The cover 2 has a connecting part 26 with screw holes, which is screwed to the main support 6. The insulation component 7 has an operation window 71, through which the connecting part 26 is exposed to the outside view. In this technical solution, the insulation component 7 can improve the heat preservation effect of the heat-insulating tank and reduce heat conduction from the heat-insulating tank to the main support 6, which helps to reduce the overall temperature rise of the water purifier during operation. The connection part 26 is exposed to the outside view through the operation window 71, which allows the screws on the connection part 26 to be removed without removing the insulation component 7, facilitating the assembly and disassembly of the heat-insulating tank and the main support 6. Specifically, a clearance hole can be provided on the insulation component 7 to allow the support column 25 to pass through the clearance hole and support the outer shell 5. The insulation component 7 can be made of insulation cotton or other structures.

[0069] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0070] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0071] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A heat-insulating liner, characterized in that, It includes a main body, a cover, and a locking plate. The locking plate is connected to the main body and can be switched between a clearance position and a locking position relative to the main body by bending. The locking plate bends to the clearance position to allow the cover to close to the opening of the main body or separate from the main body; the locking plate bends to the locking position to press and lock the cover to the main body.

2. The heat-insulating liner according to claim 1, characterized in that, The cover is provided with a guide fitting part that is adapted to the locking piece. The locking piece, located in the avoidance position, guides the cover to close the main body by passing through the guide fitting part.

3. The heat-insulating liner according to claim 2, characterized in that, The guide fitting part is configured as a notch formed on the edge of the cover. One end of the locking piece is connected to the open end of the main body, and the other end passes through the notch and is bent to press the cover.

4. The heat-insulating liner according to claim 2, characterized in that, The guide fitting part is configured as an insertion hole formed in the cover body. One end of the locking piece is connected to the open end of the main body, and the other end passes through the insertion hole and is bent to press the cover body.

5. The heat-insulating liner according to claim 1, characterized in that, The locking piece includes a bending portion and a pressing portion. The locking piece is bent through the bending portion and presses the cover through the pressing portion. The cross-sectional area of ​​the bending portion is smaller than the cross-sectional area of ​​the pressing portion.

6. The heat-insulating liner according to any one of claims 1-5, characterized in that, The locking piece is integrally formed with the main body, and multiple locking pieces are arranged at intervals along the circumference of the main body.

7. The heat-insulating liner according to claim 1, characterized in that, The cover is provided with a limiting groove, which includes an outer limiting wall and an inner limiting wall. When the cover closes the main body, the opening end of the main body is limited within the limiting groove. The outer limiting wall and the inner limiting wall restrict the deformation of the main body on the outer and inner sides of the opening end, respectively.

8. The heat-insulating liner according to claim 7, characterized in that, A sealing body is provided between the inner limiting wall and the main body. The sealing body has a sealing skirt and an anti-detachment protrusion on both sides. The sealing skirt abuts against the inner wall of the main body, and the anti-detachment protrusion abuts against the inner limiting wall.

9. A water purifier integrating heat purification and cooling, comprising a housing and a main support frame disposed within the housing, characterized in that, The integrated water purifier and heat purifier also includes a heat preservation tank as described in any one of claims 1 to 8, the main support is provided with a receiving cavity for accommodating the heat preservation tank, and the cover is provided with a plurality of support columns, the support columns abutting against the outer shell.

10. The integrated water purifier and heat purifier according to claim 9, characterized in that, The integrated water purifier and heat purifier also includes an insulation component covering the heat-insulating tank. The cover has a connecting part with screw holes, which is screwed to the main support. The insulation component has an operation window, through which the connecting part is exposed to the external view.

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