CN219866736U - Water pipe connection structure and water heater water tank - Google Patents
Water pipe connection structure and water heater water tank Download PDFInfo
- Publication number
- CN219866736U CN219866736U CN202320840947.8U CN202320840947U CN219866736U CN 219866736 U CN219866736 U CN 219866736U CN 202320840947 U CN202320840947 U CN 202320840947U CN 219866736 U CN219866736 U CN 219866736U
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- liner
- water
- pipe
- pipe joint
- connection
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 121
- 239000000463 material Substances 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 13
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model discloses a water pipe connection structure, which comprises: a first liner; the periphery of one end of the second liner tube is provided with a limiting step, the other end of the second liner tube is inserted into the first liner tube, and the second liner tube is connected with the first liner tube; the inner circumference of the first end of the pipe joint is provided with an inner annular table, the second liner tube penetrates through the central hole of the pipe joint from the first end of the pipe joint, and the limiting step is overlapped with the inner annular table. According to the water pipe connection structure, the second liner pipe is arranged, one part of the second liner pipe is inserted into the first liner pipe and is connected with the first liner pipe, the second liner pipe can be fixed with the pipe joint in a sealing mode through the limiting step and the pipe joint, flanging of the first liner pipe is not needed, and the wall thickness of the first liner pipe can be effectively reduced.
Description
Technical Field
The utility model belongs to the technical field of pipe connection, and particularly relates to a water pipe connection structure and a water tank of a water heater.
Background
The liner tube of the water heater is a part extending to the liner tube of the water heater, can play a role of water inlet or water outlet, and is required to be connected with an external water inlet main pipe or an external water outlet main pipe.
The current improvement mode is to add a plastic bushing outside the liner tube, which is realized by the interference fit between the plastic bushing and the water pipe. The scheme is based on the liner tube, the liner tube is required to be flanged, the process has requirements on the wall thickness of the liner tube, the material cost is increased, and the assembly mode is complex.
Disclosure of Invention
The utility model provides a water pipe connection structure, which aims at the technical problems that a liner pipe of the water pipe connection structure in the prior art is poor in tightness with water pipe connection and has high requirements on the thickness of the liner pipe, and can solve the problems.
In order to achieve the aim of the utility model, the utility model is realized by adopting the following technical scheme:
a water pipe connection structure comprising:
a first liner;
the periphery of one end of the second liner tube is provided with a limiting step, the other end of the second liner tube is inserted into the first liner tube, and the second liner tube is connected with the first liner tube;
the inner circumference of the first end of the pipe joint is provided with an inner annular table, the second liner tube penetrates through the central hole of the pipe joint from the first end of the pipe joint, and the limiting step is overlapped with the inner annular table.
In some embodiments, the second liner tube comprises a first connection section and a second connection section, the limiting step is located at a port of the first connection section, one or more annular waterproof ribs are formed on the periphery of the first connection section, the second connection section is inserted into the first liner tube to be fixed with the first liner tube, and the waterproof ribs are tightly attached to the inner wall of the pipe joint.
In some embodiments, the second connection section has an outer diameter less than an outer diameter of the first connection section, and a portion of the first liner tube section extends into the inner side of the pipe joint.
In some embodiments, the length of the first liner is not less than the length of the second liner.
In some embodiments, the second liner is a plastic material.
In some embodiments, the first liner is a stainless steel material.
In some embodiments, the second connection section is an interference fit with the first liner.
In some embodiments, the limit step is an annular step.
The utility model also provides a water tank of the water heater, which comprises an inner container and any water pipe connecting structure, wherein the pipe joint is fixed with the inner container, and the first liner pipe and the second liner pipe are inserted into the inner container.
In some embodiments, the water pipe connection structure has two water inlet manifolds and water outlet manifolds, respectively.
Compared with the prior art, the utility model has the advantages and positive effects that:
according to the water pipe connection structure, the second liner pipe is arranged, one part of the second liner pipe is inserted into the first liner pipe and is connected with the first liner pipe, the second liner pipe can be fixed with the pipe joint in a sealing mode through the limiting step and the pipe joint, flanging of the first liner pipe is not needed, and the wall thickness of the first liner pipe can be effectively reduced.
Other features and advantages of the present utility model will become apparent upon review of the detailed description of the utility model in conjunction with the drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an embodiment of a water connection structure according to the present utility model;
FIG. 2 is an exploded view of FIG. 1;
FIG. 3 is a partially exploded view of FIG. 1;
FIG. 4 is a cross-sectional view of FIG. 1;
FIG. 5 is a partial schematic view of the structure of FIG. 1;
FIG. 6 is a schematic diagram of an embodiment of a water heater tank according to the present utility model;
fig. 7 is a schematic structural view of another embodiment of a water tank of a water heater according to the present utility model.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, in the description of the present utility model, terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1
The present embodiment proposes a water pipe connection structure, as shown in fig. 1 and 2, including a first liner tube 11, a second liner tube 12, and a pipe joint 13, wherein a limiting step 121 is formed on the periphery of one end of the second liner tube 12, the other end of the second liner tube 12 is inserted into the first liner tube 11, and the second liner tube 12 is fixedly connected with the first liner tube 11.
As shown in fig. 3, an inner circumferential surface of the first end of the pipe joint 13 is formed with an inner circumferential surface 131, the second liner 12 passes through a center hole of the pipe joint 13 from the first end of the pipe joint 13, and the stopper step 121 is overlapped with the inner circumferential surface 131. The second liner tube 12 and the pipe joint 13 are in sealing connection with the inner annular table 131 through the limiting step 121 and simultaneously matched with a sealing structure. Since the first liner 11 is connected to the second liner 12, the first liner 11 is connected to the pipe joint 13. The pipe joint 13 can be connected with an external water inlet pipe or an external water outlet pipe through a threaded structure or other connection modes, and the central hole of the pipe joint 13 and the pipe hole of the second liner pipe 12 are used for connecting the external water inlet pipe or the external water outlet pipe with the first liner pipe 11 in a transitional manner, so that the diversion effect on water is achieved, and the water inlet and outlet functions of the water heater are realized.
The water pipe connecting structure of the embodiment does not need to design a complex structure such as a flanging and the like of the first liner pipe 11, which has requirements on strength, thereby achieving the purpose of reducing the wall thickness.
When assembled, the first liner 11 and the second liner 12 which are fixedly connected together pass through the central hole of the pipe joint 13 from the first end of the pipe joint 13, the limiting step 121 of the second liner 12 is overlapped with the inner annular table 131, namely, the second liner 12 is limited by the inner annular table 131, the second liner 12 is fixedly maintained with the pipe joint 13, and the end of the second liner 12 opposite to the limiting step 121 penetrates into the inner container of the water heater through the pipe joint 13.
In some embodiments, the outer circumference of the pipe joint 13 is formed with external threads 132 for a fixed connection with the joint of the external water inlet manifold or the water outlet manifold.
The external thread 132 is provided near a first end of the pipe joint 13, which first end of the pipe joint 13 is the end remote from the inner container when the water pipe connection structure is assembled to the inner container.
At least a portion of the second liner 12 is inserted into the first liner 11 and this portion is simultaneously inserted into the inner vessel of the water heater, the second liner 12 being secured to the pipe joint 13, the second liner 12 acting as a support for the first liner 11.
In this embodiment, the end structure of the first liner tube 11 is not particularly limited, so that the first liner tube 11 may be designed into a straight tube, a bent tube or other special tubes according to actual needs, and the flexibility of setting and the application of the first liner tube 11 can be improved.
In some embodiments, as shown in fig. 4 and 5, the second liner 12 includes a first connection section 122 and a second connection section 123, the limiting step 121 is located at a port of the first connection section 122, one or more annular waterproof ribs 124 are formed on the periphery of the first connection section 122, the second connection section 123 is inserted into the first liner 11 to be fixed with the first liner 11, and the first connection section 122 is located outside the first liner 11.
In some embodiments, the limiting step 121 is an annular step, the surface facing the inner ring table 131 is a plane, the table surface of the inner ring table 131 is also a plane, and the limiting step and the table surface are in surface contact when being abutted, so that the requirement of end face sealing is met, and the risk of water leakage can be further reduced.
When second liner 12 passes through pipe joint 13 and is connected to pipe joint 13, waterproof ribs 124 are tightly attached to the inner wall of pipe joint 13, and function as a seal to prevent water from leaking through the gap between second liner 12 and pipe joint 13.
The waterproof rib 124 is an annular rib position around the outer circumference of the ring first connecting section 122, and preferably a plurality thereof is provided to improve waterproof performance.
The waterproof ribs 124 are in interference fit with the pipe joint 13, so that the waterproof performance is further improved, and water is ensured not to leak from the waterproof ribs 124.
Since first liner 12 has a certain wall thickness and first liner 12 needs to be sleeved outside second connection section 123, it is clear that the wall thickness of first liner 12 increases the height of the protrusion on the outer surface of second connection section 123, and if the wall thickness of first liner 12 is greater than or close to the thickness of waterproof rib 124, the waterproof performance of waterproof rib 124 will be affected, and even lost. Thus, to prevent the wall thickness of first liner 12 from affecting the water-resistant properties of water-resistant ribs 124, in some embodiments, the outer diameter of second connection segment 123 is smaller than the outer diameter of first connection segment 122, and as the difference between the outer diameter of second connection segment 123 and the outer diameter of first connection segment 122 may offset a portion of the wall thickness of first liner 12, the impact on the water-resistant properties of water-resistant ribs 124 may be reduced or avoided.
The pipe section of the first liner 11 is inserted into the inside of the pipe joint 13, which can improve the supporting strength of the first liner 11 and the stability of the first liner 11.
The second connecting section 123 is integrally inserted into the first liner 11, preventing the first liner 11 from being disengaged from the second liner 12 in order to enable a secure connection of both at the same time, and in some embodiments the second connecting section 123 is an interference fit with the first liner 11.
In use, the first liner 11 is inserted into the water heater liner, through which water is fed or discharged to the liner, and in some embodiments the second liner 12 acts to support the first liner 11, so that the length of the second liner 12 need not be designed to be too long, otherwise the water feed and discharge function of the first liner 11 is affected, and so the length of the first liner 11 is not less than the length of the second liner 12.
The second liner 12 serves to guide and support the first liner 11, and also cooperates with the pipe joint 13 for sealing, and in some embodiments, the second liner 12 may be made of a plastic material, which has a low self-density and light weight, and is beneficial to reducing the load supported by the pipe joint 13, and is convenient for forming and sealing, and the material characteristics of the second liner have a certain hardness, so that a stable support can be provided for the first liner 11.
In some embodiments, the first liner 11 is stainless steel.
The water pipe connecting structure of the embodiment is simple and easy to manufacture, can reduce the material cost, and meets the requirements of waterproof sealing and the like.
Example two
The present embodiment proposes a water tank of a water heater, as shown in fig. 6, which includes an inner liner 2 and a casing 3, wherein the inner liner 2 is disposed in the casing 3, and further includes a water pipe connection structure, as shown in fig. 1 to 5, including a first liner 11, a second liner 12, and a pipe joint 13, wherein a limiting step 121 is formed at the periphery of one end of the second liner 12, the other end of the second liner 12 is inserted into the first liner 11, and the second liner 12 is fixedly connected with the first liner 11.
Wherein the pipe joint 13 is fixed with the liner 2, and the first liner 11 and the second liner 12 are inserted into the liner 2. The first liner 11 serves to feed or discharge water to or from the liner.
The pipe joint 13 may be fixed to the bottom of the liner 2 or may be fixed to the side of the liner 2.
The liner 2 can be horizontally arranged as shown in fig. 6 or vertically arranged as shown in fig. 7.
It should be noted that the water heater tank in the present embodiment may be any one of, but not limited to, a solar water heater tank, an electric water heater tank, and a heat pump water heater tank.
The inner circumference of the first end of the pipe joint 13 is formed with an inner ring land 131, the second liner 12 passes through the center hole of the pipe joint 13 from the first end of the pipe joint 13, and the limiting step 121 is overlapped with the inner ring land 131. The second liner tube 12 and the pipe joint 13 are in sealing connection with the inner annular table 131 through the limiting step 121 and simultaneously matched with a sealing structure. Since the first liner 11 is connected to the second liner 12, the first liner 11 is connected to the pipe joint 13. The pipe joint 13 can be connected with an external water inlet pipe or an external water outlet pipe through a threaded structure or other connection modes, and the central hole of the pipe joint 13 and the pipe hole of the second liner pipe 12 are used for connecting the external water inlet pipe or the external water outlet pipe with the first liner pipe 11 in a transitional manner, so that the diversion effect on water is achieved, and the water inlet and outlet functions of the water heater are realized.
The water pipe connecting structure of the embodiment does not need to design a complex structure such as a flanging and the like of the first liner pipe 11, which has requirements on strength, thereby achieving the purpose of reducing the wall thickness.
When assembled, the first liner 11 and the second liner 12 which are fixedly connected together pass through the central hole of the pipe joint 13 from the first end of the pipe joint 13, the limiting step 121 of the second liner 12 is overlapped with the inner annular table 131, namely, the second liner 12 is limited by the inner annular table 131, the second liner 12 is fixedly maintained with the pipe joint 13, and the end of the second liner 12 opposite to the limiting step 121 penetrates into the inner container of the water heater through the pipe joint 13.
In some embodiments, the outer circumference of the pipe joint 13 is formed with external threads 132 for a fixed connection with the joint of the external water inlet manifold or the water outlet manifold.
The external thread 132 is provided near a first end of the pipe joint 13, which first end of the pipe joint 13 is the end remote from the inner container when the water pipe connection structure is assembled to the inner container.
At least a portion of the second liner 12 is inserted into the first liner 11 and this portion is simultaneously inserted into the inner vessel of the water heater, the second liner 12 being secured to the pipe joint 13, the second liner 12 acting as a support for the first liner 11.
In this embodiment, the end structure of the first liner tube 11 is not particularly limited, so that the first liner tube 11 may be designed into a straight tube, a bent tube or other special tubes according to actual needs, and the flexibility of setting and the application of the first liner tube 11 can be improved.
In some embodiments, second liner 12 includes a first connection section 122 and a second connection section 123, with stop step 121 located at a port of first connection section 122, an outer circumference of first connection section 122 formed with one or more annular waterproof ribs 124, second connection section 123 inserted into first liner 11 to be fixed with first liner 11, and first connection section 122 located outside first liner 11.
In some embodiments, the limiting step 121 is an annular step, the surface facing the inner ring table 131 is a plane, the table surface of the inner ring table 131 is also a plane, and the limiting step and the table surface are in surface contact when being abutted, so that the requirement of end face sealing is met, and the risk of water leakage can be further reduced.
When second liner 12 passes through pipe joint 13 and is connected to pipe joint 13, waterproof ribs 124 are tightly attached to the inner wall of pipe joint 13, and function as a seal to prevent water from leaking through the gap between second liner 12 and pipe joint 13.
The waterproof rib 124 is an annular rib position around the outer circumference of the ring first connecting section 122, and preferably a plurality thereof is provided to improve waterproof performance.
The waterproof ribs 124 are in interference fit with the pipe joint 13, so that the waterproof performance is further improved, and water is ensured not to leak from the waterproof ribs 124.
Since first liner 12 has a certain wall thickness and first liner 12 needs to be sleeved outside second connection section 123, it is clear that the wall thickness of first liner 12 increases the height of the protrusion on the outer surface of second connection section 123, and if the wall thickness of first liner 12 is greater than or close to the thickness of waterproof rib 124, the waterproof performance of waterproof rib 124 will be affected, and even lost. Thus, to prevent the wall thickness of first liner 12 from affecting the water-resistant properties of water-resistant ribs 124, in some embodiments, the outer diameter of second connection segment 123 is smaller than the outer diameter of first connection segment 122, and as the difference between the outer diameter of second connection segment 123 and the outer diameter of first connection segment 122 may offset a portion of the wall thickness of first liner 12, the impact on the water-resistant properties of water-resistant ribs 124 may be reduced or avoided.
The pipe section of the first liner 11 is inserted into the inside of the pipe joint 13, which can improve the supporting strength of the first liner 11 and the stability of the first liner 11.
The second connecting section 123 is integrally inserted into the first liner 11, preventing the first liner 11 from being disengaged from the second liner 12 in order to enable a secure connection of both at the same time, and in some embodiments the second connecting section 123 is an interference fit with the first liner 11.
In use, the first liner 11 is inserted into the water heater liner, through which water is fed or discharged to the liner, and in some embodiments the second liner 12 acts to support the first liner 11, so that the length of the second liner 12 need not be designed to be too long, otherwise the water feed and discharge function of the first liner 11 is affected, and so the length of the first liner 11 is not less than the length of the second liner 12.
The second liner 12 serves to guide and support the first liner 11, and also cooperates with the pipe joint 13 for sealing, and in some embodiments, the second liner 12 may be made of a plastic material, which has a low self-density and light weight, and is beneficial to reducing the load supported by the pipe joint 13, and is convenient for forming and sealing, and the material characteristics of the second liner have a certain hardness, so that a stable support can be provided for the first liner 11.
In some embodiments, the first liner 11 is stainless steel.
In some embodiments, the water connection structure has two for connecting the water inlet manifold and the water outlet manifold, respectively. For convenience of explanation, as shown in the figure, the water pipe connection structure for connecting the water inlet manifold is a water inlet pipe connection structure 1a, and the water pipe connection structure for connecting the water outlet manifold is a water outlet pipe connection structure 1b.
Because the water temperature in the liner 2 is layered, the water with high temperature is positioned on the upper layer, and the water with low temperature is positioned on the lower layer, so that in order to improve the hot water output rate, the first liner tube which is generally used for outputting water extends to the upper layer position of the liner 2, so that the output of hot water can be ensured. And the first liner tube for water inflow extends to the lower layer position of the liner 2 so as to prevent the entered cold water from disturbing the layering of the water temperature and reduce the influence on the upper-layer high temperature. Thus, in some embodiments, the length of the first liner of the inlet pipe connection 1a is greater than the length of the first liner of the outlet pipe connection 1b.
The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (10)
1. A water pipe connection structure, comprising:
a first liner;
the periphery of one end of the second liner tube is provided with a limiting step, the other end of the second liner tube is inserted into the first liner tube, and the second liner tube is connected with the first liner tube;
the inner circumference of the first end of the pipe joint is provided with an inner annular table, the second liner tube penetrates through the central hole of the pipe joint from the first end of the pipe joint, and the limiting step is overlapped with the inner annular table.
2. The water pipe connection structure according to claim 1, wherein the second liner pipe comprises a first connection section and a second connection section, the limit step is located at a port of the first connection section, one or more annular waterproof ribs are formed on the periphery of the first connection section, the second connection section is inserted into the first liner pipe to be fixed with the first liner pipe, and the waterproof ribs are tightly attached to the inner wall of the pipe joint.
3. The water pipe connection structure according to claim 2, wherein an outer diameter of the second connection section is smaller than an outer diameter of the first connection section, and a part of the pipe section of the first liner pipe is inserted into an inner side of the pipe joint.
4. The water connection as recited in claim 1, wherein a length of the first liner is not less than a length of the second liner.
5. A water connection according to any one of claims 1 to 4, wherein the second liner is of plastics material.
6. The water connection as recited in any one of claims 1 to 4, wherein the first liner tube is of stainless steel.
7. The water connection of claim 2, wherein the second connection section is an interference fit with the first liner.
8. The water connection structure according to any one of claims 1 to 4, wherein the limiting step is an annular step.
9. A water heater tank comprising a liner, further comprising a water connection according to any one of claims 1-8, wherein the pipe joint is secured to the liner, and wherein the first liner and the second liner extend into the liner.
10. The water heater tank of claim 9, wherein the water pipe connection structure has two for connecting the water inlet manifold and the water outlet manifold, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320840947.8U CN219866736U (en) | 2023-04-14 | 2023-04-14 | Water pipe connection structure and water heater water tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320840947.8U CN219866736U (en) | 2023-04-14 | 2023-04-14 | Water pipe connection structure and water heater water tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219866736U true CN219866736U (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320840947.8U Active CN219866736U (en) | 2023-04-14 | 2023-04-14 | Water pipe connection structure and water heater water tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219866736U (en) |
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2023
- 2023-04-14 CN CN202320840947.8U patent/CN219866736U/en active Active
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