Nonmetal inner container, water container and manufacturing method thereof

Abstract

The invention discloses a non-metal inner container, a water container and a manufacturing method of the non-metal inner container, and the non-metal inner container comprises a main container opening which is formed to be an outwards-turned container opening located in the neck portion of the top wall of an inner container body, and the main container opening is used for a circuit to enter the non-metal inner container; the water outlet pipe and the water inlet pipe are formed on the bottom wall of the liner body. According to the water container, a water path and a circuit are separated, and potential safety hazards are avoided to the maximum extent. Besides, due to the fact that the structural design that the water path and the circuit are separated is adopted, compared with the prior art (the water path and the circuit are not separated, and assemblies entering from the main container opening are reduced), the size of the main container opening is allowed to be smaller, the small-size main container opening can provide better pressure bearing capacity, and the manufacturing cost is lower.

Description

Technical Field

[0001] The invention relates to the field of water treatment, in particular to a non-metallic inner tank and a water tank for hot water equipment and a manufacturing method thereof. Background Art

[0002] With the improvement of people's living standards, water heaters have become a must-have household appliance. In the prior art, metal enamel water tanks are often used as water storage units. In order to heat water, a heating tube (circuit for short) is often installed in the tank. However, the metal enamel tank has problems such as heavy weight, low insulation coefficient, poor corrosion resistance, and high energy consumption during processing. These problems limit the installation and use of water heaters, and because of corrosion problems, after a period of use, the water quality of the heated water will deteriorate, which greatly affects customer use.

[0003] Therefore, technicians have come up with the idea of ​​using non-metallic water liner technology to replace metal water liner. For example, Chinese patent CN219868491U discloses a structure of a non-metallic liner, which replaces the non-metallic liner, but it can be seen that it has only one main opening, and the heating unit, temperature control unit, water inlet and outlet, anti-dry-burning sensor, etc. are all placed through this main opening. Therefore, the main opening is usually large in size, and the water channel and the circuit are mixed together, which poses a safety hazard.

[0004] For safety reasons, technicians may easily think of separating the water circuit and the circuit. Therefore, the inner tank disclosed in Chinese patent CN217604342U has a side opening feature, and the inlet and outlet pipes are stripped from the main opening and set on the side of the inner tank, realizing the separation of the circuit and the water circuit. However, the inner tank is a metal inner tank, because the metal tank can be conveniently set with opening features through welding, machining, etc., it is relatively easy to achieve. The non-metallic inner tank needs to consider the molding process and structural strength. Often the side opening needs to open a hole in the winding layer, which will destroy the continuity of the winding layer, thereby greatly reducing the strength of the winding layer. The inner tank for the water heater belongs to the high temperature and high pressure use scenario, and the damage to the winding layer will bring unpredictable consequences. Therefore, the solution of splitting the water circuit and the circuit cannot be applied to non-metallic inner tanks.

[0005] The non-metallic liner often includes an integral liner layer, which is formed by a seamless blow molding process, and then the composite material layer is coated on the outside of the liner layer by a wet winding method. The liner layer also includes a mouth. Because the mouth is part of the liner layer, its structure must be enhanced by additional components so that it also has a higher pressure bearing capacity, especially when used in a hot water environment, its pressure capacity requirements are extremely high. This is also the reason why non-technical liner usually has only one opening, because opening an additional interface means a more complicated winding method and a higher structural cost. The present invention, through the study of the blow molding mold, peels the water inlet and outlet from the main opening and sets it at the other end of the liner, so that the integrity of the winding layer can be ensured. Regarding the strength design of the water inlet and outlet, the characteristics of the wet winding method can be used to bypass the water inlet and outlet and coat the exposed part of the liner, but this method has extremely high requirements for the winding procedure, avoiding the pillars of the water inlet and outlet, and even requires human intervention to achieve, which is not conducive to mass production. Our invention introduces a base 9, which is placed between the inner liner and the winding layer, and uses the strength of the base itself to transmit force, and also enhances the structural strength of the water inlet and outlet, thus achieving multiple goals at one stroke. Summary of the invention

[0006] A series of simplified concepts are introduced in the Summary of the Invention, which are all simplifications of the prior art in the field, and will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention of the present invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0007] The technical problem to be solved by the present invention is to provide a non-metallic liner with a water circuit and electric circuit separation structure, which can provide a high-strength liner body and has low production cost and is easy to produce.

[0008] In order to solve the above technical problems, the present invention provides a non-metal liner, comprising:

[0009] A main bile opening 3, which is formed as an outward-turned bile opening located on the neck portion 2 of the top wall of the inner bile body 1, and through which the electric circuit enters the non-metallic inner bile;

[0010] The water outlet pipe 4 and the water inlet pipe 5 are formed on the bottom wall of the inner tank body 1. The specific positions of the water outlet pipe 4 and the water inlet pipe 5 are not limited and can be set according to actual needs.

[0011] Preferably, the non-metallic liner is further improved and is manufactured using an integrated molding process.

[0012] Preferably, the non-metallic liner is further improved, and the liner body 1 is manufactured by an integrated molding process;

[0013] Two through holes are made at the bottom of the inner tank body 1, and the water outlet pipe 4 and the water inlet pipe 5 are fixedly connected to the two through holes respectively, that is, the inner tank body 1 is manufactured by an integrated molding process and then fixedly connected to the water outlet pipe 4 and the water inlet pipe 5 at the bottom.

[0014] Preferably, the non-metallic liner is further improved, and the liner body 1 is manufactured by a split molding process and then welded to form the liner body 1;

[0015] Two through holes are made at the bottom of the inner tank body 1, and the water outlet pipe 4 and the water inlet pipe 5 are fixedly connected to the two through holes respectively.

[0016] In order to solve the above technical problems, the present invention provides a water bladder, which has any one of the non-metallic liner described above, and also includes:

[0017] A fastener 6, which is sleeved on the neck 2;

[0018] A pressing sleeve 7 is sleeved on the fastener 6, and its bottom surface is formed into an arc surface adapted to the top surface of the inner liner body 1 around the main liner opening 3, and its top surface of the inner liner body 1 forms a surface contact;

[0019] The winding layer 8 is wrapped around the inner tank body 1 and the lower part of the pressing sleeve 7, and exposes the water outlet and the water inlet.

[0020] Preferably, the water bladder is further improved, further comprising:

[0021] The base 9 has an upper portion formed as an arc surface adapted to the bottom surface of the inner tank body 1, and the upper portion thereof is in surface contact with the lower portion of the inner tank body 1;

[0022] The water outlet pipe 4 and the water inlet pipe 5 pass through the base 9 respectively;

[0023] The winding layer 8 is wrapped around the inner tank body 1, the pressing sleeve 7 and the base 9, and exposes the water outlet and the water inlet.

[0024] Preferably, the bladder is further improved, and the fastener 6 is formed into a split structure.

[0025] In order to solve the above technical problems, the present invention provides a method for manufacturing the water bladder (corresponding to the above solution without a base), comprising the following steps:

[0026] S1, providing a non-metallic liner, a fastener 6 and a compression sleeve 7;

[0027] S2, insert the fastener 6 onto the non-metallic liner neck 2;

[0028] S3, putting the pressing sleeve 7 on the neck 2 of the non-metallic liner and the fastener 6;

[0029] S4, forming a winding layer 8 to cover the non-metallic liner and the lower part of the pressing sleeve 7.

[0030] In order to solve the above technical problems, the present invention provides a method for manufacturing the water bladder (corresponding to the above solution with a base), comprising the following steps:

[0031] S1, providing a non-metallic liner, a fastener 6, a pressing sleeve 7 and a base 9;

[0032] S2, insert the fastener 6 onto the non-metallic liner neck 2;

[0033] S3, putting the pressing sleeve 7 on the neck 2 of the non-metallic liner and the fastener 6;

[0034] S4', passing the water outlet pipe 4 and the water inlet pipe 5 through the base 9;

[0035] S5, forming a winding layer 8 to cover the non-metallic liner, the lower part of the pressing sleeve 7 and the upper part of the base 9.

[0036] The present invention adopts a new structural design and manufacturing method to achieve at least the following technical effects:

[0037] 1. The water tank of the present invention realizes the separation of water circuit and circuit, which avoids potential safety hazards to the greatest extent. In addition, because of the structural design of separating water circuit and circuit, the size of the main tank opening of the present invention is smaller than that of the prior art (the water circuit and circuit are not separated, and the components entering from the main tank opening are reduced). The small-sized main tank opening can provide better pressure bearing capacity and has lower manufacturing cost.

[0038] 2. The main opening and neck of the water tank of the present invention form an "I"-shaped structure together. The fastener is installed on the "I"-shaped structure, and then the compression sleeve is installed and wrapped with a winding layer, and the winding layer at least covers the lower edge of the neck. In this way, the main opening, neck, compression sleeve and winding layer form a pressure-bearing whole, which constitutes a stable installation and provides high pressure-bearing capacity while providing installation convenience.

[0039] 3. In the preferred embodiment of the present invention, a base is added, and the water outlet pipe and the water inlet pipe pass through the base. The base and the water bladder body are wound together through the winding layer to form a pressure-bearing whole, and then the winding layer is used to realize force transmission from top to bottom.

[0040] In addition, the base and the winding layer can also support the water outlet pipe and the water inlet pipe along the pipe axis direction, thereby improving the strength and stability of the water outlet pipe and the water inlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The drawings of the present invention are intended to illustrate the general characteristics of the methods, structures and / or materials used in specific exemplary embodiments of the present invention, and to supplement the description in the specification. However, the drawings of the present invention are schematic diagrams not drawn to scale, and thus may not accurately reflect the precise structure or performance characteristics of any given embodiment, and the drawings of the present invention should not be interpreted as limiting or restricting the range of values ​​or properties covered by the exemplary embodiments of the present invention. The present invention is further described in detail below in conjunction with the drawings and specific embodiments: Figure 1 It is a schematic diagram of the structure of the non-metal liner of the present invention. Figure 2 This is a schematic diagram of the decomposition structure of the water bladder of the present invention. Figure 1 . Figure 3 This is a schematic diagram of the decomposition structure of the water bladder of the present invention. Figure 2 . Description of reference numerals:

[0042] Inner tank 1

[0043] Neck 2

[0044] Main bile port 3

[0045] Outlet pipe 4

[0046] Water inlet pipe 5

[0047] Fastener 6

[0048] Press sleeve 7

[0049] Wrap layer 8. DETAILED DESCRIPTION

[0054] The following is an explanation of the embodiments of the present invention by specific specific embodiments, and those skilled in the art can fully understand other advantages and technical effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through different specific embodiments, and the details in this specification can also be applied based on different viewpoints, and various modifications or changes can be made without deviating from the general design concept of the invention. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. The following exemplary embodiments of the present invention can be implemented in a variety of different forms and should not be interpreted as being limited to the specific embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete, and to fully convey the technical solutions of these exemplary specific embodiments to those skilled in the art. It should be understood that when an element is referred to as "connected" or "coupled" to another element, the element can be directly connected or coupled to another element, or there can be an intermediate element. The difference is that when an element is referred to as "directly connected" or "directly coupled" to another element, there is no intermediate element. In all figures, the same reference numerals always represent the same element. As used herein, the term "and / or" includes any combination and all combinations of one or more related listed items.

[0055] First embodiment;

[0056] refer to Figure 1 As shown, the present invention provides a non-metal liner, comprising:

[0057] The main bile opening 3 is formed as an outward-turned bile opening located on the neck 2 of the top wall of the inner bile body 1, and the power supply circuit enters the non-metallic inner bile; illustratively, the outward-turned bile opening and the neck together form a structure similar to an "I" shape;

[0058] The water outlet pipe 4 and the water inlet pipe 5 are formed on the bottom wall of the inner tank body 1 .

[0059] Second embodiment;

[0060] The present invention provides a non-metallic inner liner, which is based on the structure provided by the above-mentioned first embodiment, wherein the non-metallic inner liner is manufactured by an one-piece molding process, such as a blow molding process or a rotational molding process, that is, the inner liner body 1, the neck 2, the main liner opening 3, the water outlet pipe 4 and the water inlet pipe 5 are all manufactured by one-piece molding.

[0061] Third embodiment;

[0062] The present invention provides a non-metallic liner, which is based on the structure provided in the first embodiment, wherein the liner body 1 is manufactured by an integrated molding process, for example, the liner body 1 is manufactured by a blow molding process or a rotational molding process, that is, the liner body 1, the neck 2 and the main liner opening 3 are manufactured by an integrated molding process;

[0063] Two through holes are made at the bottom of the inner tank body 1, and the water outlet pipe 4 and the water inlet pipe 5 are respectively fixedly connected to the two through holes, for example, the water outlet pipe 4 and the water inlet pipe 5 are respectively connected to the two through holes by threads, gluing or welding.

[0064] Fourth embodiment;

[0065] The present invention provides a non-metallic liner, which is based on the structure provided in the first embodiment, wherein the liner body 1 is manufactured by a split molding process and then welded to form the liner body 1;

[0066] For example, a two-flap inner liner body (a multi-flap inner liner body can also be manufactured) is manufactured by thermoforming, roll forming, or compression molding, and then the two-flap inner liner body is fixed together by gluing or welding to form the inner liner body;

[0067] Two through holes are made at the bottom of the inner tank body 1, and the water outlet pipe 4 and the water inlet pipe 5 are respectively fixedly connected to the two through holes, for example, the water outlet pipe 4 and the water inlet pipe 5 are respectively connected to the two through holes by threads, gluing or welding.

[0068] Fifth embodiment;

[0069] refer to Figure 2 Combination Figure 1 As shown, the present invention provides a water bladder, which has the non-metallic liner described in any one of the first to fourth embodiments, and further includes:

[0070] A fastener 6, which is sleeved on the neck 2;

[0071] It should be noted that, in order to facilitate installation, the fastener 6 is preferably a split structure, for example, a two-petal flange (a multi-petal flange may also be used) is used as a split fastener;

[0072] A pressing sleeve 7 is sleeved on the fastener 6, and its bottom surface is formed into an arc surface adapted to the top surface of the inner liner body 1 around the main liner opening 3, and its top surface of the inner liner body 1 forms a surface contact;

[0073] For example, the pressing sleeve 7 is in the shape of a straw hat with an opening formed in the middle of the top wall of the hat body, and the straw hat shape includes: a hat body and an annular brim at the lower part of the hat body (wherein the brim is preferably an annular brim, and can also be a split brim), the size of the opening is less than or equal to the size of the main bile opening 3, the remaining part of the top wall of the straw hat body is in surface contact with the top wall of the everted part of the main bile opening 3 (can be fixed together by screws), and the pressing sleeve 7 (the remaining part of the top wall of the straw hat body), the main bile opening 3 (the top wall of the everted bile opening) and the fastener 6 can be fixed together by screws;

[0074] The winding layer 8 is coated on the inner liner body 1 and the lower part of the pressing sleeve 7 (i.e. the brim position), and the water outlet and water inlet are exposed.

[0075] Sixth embodiment;

[0076] The present invention provides a water bladder, which is a further improvement on the fifth embodiment, and further comprises:

[0077] The base 9 has an upper portion formed into a curved surface adapted to the bottom surface of the inner tank body 1, and the upper portion thereof is in surface contact with the lower portion of the inner tank body 1; for example, the base 9 is formed into a bowl-shaped structure;

[0078] The water outlet pipe 4 and the water inlet pipe 5 pass through the base 9 respectively;

[0079] The winding layer 8 is wrapped around the inner tank body 1, the pressing sleeve 7 and the base 9, and exposes the water outlet and the water inlet.

[0080] Optionally, the inner liner body in the fifth embodiment or the sixth embodiment may be an integral structure or a split structure.

[0081] Seventh embodiment;

[0082] The present invention provides a method for manufacturing a water bladder according to a fifth embodiment, comprising the following steps:

[0083] S1, providing a non-metallic liner, a fastener 6 and a compression sleeve 7;

[0084] S2, insert the fastener 6 onto the non-metallic liner neck 2;

[0085] S3, putting the pressing sleeve 7 on the neck 2 of the non-metallic liner and the fastener 6;

[0086] S4, forming a winding layer 8 to cover the non-metallic liner and the lower part of the pressing sleeve 7.

[0087] Eighth embodiment;

[0088] The present invention provides a method for manufacturing a water bladder according to a sixth embodiment, comprising the following steps:

[0089] S1, providing a non-metallic liner, a fastener 6, a pressing sleeve 7 and a base 9;

[0090] S2, insert the fastener 6 onto the non-metallic liner neck 2;

[0091] S3, putting the pressing sleeve 7 on the neck 2 of the non-metallic liner and the fastener 6;

[0092] S4', passing the water outlet pipe 4 and the water inlet pipe 5 through the base 9;

[0093] S5, forming a winding layer 8 to cover the non-metallic liner, the lower part of the pressing sleeve 7 and the upper part of the base 9.

[0094] It should be further explained that the manufacturing method provided in the eighth embodiment adds a base 9 compared to the manufacturing method provided in the seventh embodiment. The presence of the base 9 can support the outlet pipe and the inlet pipe along the pipe axis, thereby improving the strength and stability of the outlet pipe and the inlet pipe. At the same time, the size of the outlet pipe and the inlet pipe exposed from the base is reduced as much as possible, so as to reduce the difficulty of winding the winding layer.

[0095] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. It will also be understood that, unless expressly defined herein, terms such as those defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not interpreted in an ideal or overly formal sense.

[0096] The present invention has been described in detail above through specific implementation modes and embodiments, but these do not constitute limitations of the present invention. Without departing from the principles of the present invention, those skilled in the art may also make many variations and improvements, which should also be regarded as the protection scope of the present invention.

Claims

1. A non-metal liner, characterized in that: include: A main bile opening (3) is formed as an outward-turned bile opening located on the neck portion (2) of the top wall of the inner bile body (1) and is used for the electric circuit to enter the non-metallic inner bile; A water outlet pipe (4) and a water inlet pipe (5) are formed on the bottom wall of the inner tank body (1).

2. The non-metal liner according to claim 1, characterized in that: The non-metallic liner is manufactured using an integrated molding process.

3. The non-metal liner according to claim 2, characterized in that: The inner tank body (1) is manufactured by an integrated molding process; Two through holes are made at the bottom of the inner tank body (1), and the water outlet pipe (4) and the water inlet pipe (5) are respectively fixedly connected to the two through holes.

4. The non-metal liner according to claim 1, characterized in that: The inner liner body (1) is manufactured by a split molding process and then welded to form the inner liner body (1); Two through holes are made at the bottom of the inner tank body (1), and the water outlet pipe (4) and the water inlet pipe (5) are respectively fixedly connected to the two through holes.

5. A water bladder having the non-metal liner according to claim 1, characterized in that: Also includes: A fastener (6) which is mounted on the neck (2); A pressing sleeve (7) is sleeved on the fastener (6), and its bottom surface is formed into an arc surface adapted to the top surface of the inner liner body (1) around the main liner opening (3), and its top surface is in surface contact with the inner liner body (1); The winding layer (8) covers the inner tank body (1) and the lower part of the pressing sleeve (7), and exposes the water outlet and water inlet.

6. The water bladder according to claim 5, characterized in that: Also includes: The base (9) has an upper portion formed into a curved surface adapted to the bottom surface of the inner container body (1), and the upper portion of the base is in surface contact with the lower portion of the inner container body (1); The water outlet pipe (4) and the water inlet pipe (5) respectively pass through the base (9); The winding layer (8) covers the inner tank body (1), the pressing sleeve (7) and the base (9), and exposes the water outlet and the water inlet.

7. The water bladder according to claim 5, characterized in that: The fastener (6) is formed as a split structure.

8. A method for manufacturing the water bladder according to claim 5, characterized in that: The following steps are involved: S1, providing a non-metallic liner, a fastener (6) and a compression sleeve (7); S2, inserting the fastener (6) onto the neck of the non-metallic liner (2); S3, putting the compression sleeve (7) onto the neck (2) and the fastener (6) of the non-metallic liner; S4, forming a winding layer (8) to cover the non-metallic liner and the lower part of the compression sleeve (7).

9. A method for manufacturing the water bladder according to claim 6, characterized in that: The following steps are involved: S1, providing a non-metallic liner, a fastener (6), a pressing sleeve (7) and a base (9); S2, inserting the fastener (6) onto the neck of the non-metallic liner (2); S3, putting the compression sleeve (7) onto the neck (2) and the fastener (6) of the non-metallic liner; S4', passing the water outlet pipe (4) and the water inlet pipe (5) through the base (9); S5, forming a winding layer (8) to cover the non-metallic liner, the lower part of the pressing sleeve (7) and the upper part of the base (9).

Images