CN114440461A - Flexible composite connection structure of through type electric water heater double-container - Google Patents
Flexible composite connection structure of through type electric water heater double-container Download PDFInfo
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- CN114440461A CN114440461A CN202210088076.9A CN202210088076A CN114440461A CN 114440461 A CN114440461 A CN 114440461A CN 202210088076 A CN202210088076 A CN 202210088076A CN 114440461 A CN114440461 A CN 114440461A
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- connecting pipeline
- liner
- pipeline
- electric water
- water heater
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 54
- 239000002131 composite material Substances 0.000 title claims abstract description 41
- 238000007789 sealing Methods 0.000 claims abstract description 57
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000003780 insertion Methods 0.000 abstract description 3
- 230000037431 insertion Effects 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 8
- 230000009977 dual effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/14—Arrangements for connecting different sections, e.g. in water heaters
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipe Accessories (AREA)
Abstract
The invention belongs to the technical field of electric water heaters, and particularly relates to a flexible composite connecting structure of double containers of a through type electric water heater. The problem that two groups of connecting pipelines cannot be accurately installed due to over-positioning is avoided; the invention solves the technical problems by providing a flexible composite connecting structure of double containers of the through type electric water heater. The invention relates to a through type electric water heater double-liner flexible composite connection structure, wherein an upper connection pipeline and a lower connection pipeline are spliced together; a sealing ring is arranged between the upper connecting pipeline and the lower connecting pipeline; the outer sleeve of the lower connecting pipeline is provided with a sealing sleeve, and the end parts of the sealing sleeve and the lower connecting pipeline are provided with elastic devices. The effective sealing is ensured by matching the end face sealing with the cylindrical surface sealing; the flexible connection is realized by adopting the elastic device, the occurrence of the over-positioning problem is avoided, and the accurate insertion of the two groups of connecting pipelines is ensured.
Description
Technical Field
The invention belongs to the technical field of electric water heaters, and particularly relates to a flexible composite connecting structure of double containers of a through type electric water heater.
Background
With the improvement of the living demands of people, the electric water heater is not required to be installed in different rooms, does not generate harmful gas, is fast and convenient in temperature adjustment, is safe and reliable, and is selected by thousands of households as a household appliance. As one of the common electric water heaters, the dual-bladder electric water heater has fast heating and variable volume functions, and is therefore favored by more and more users. In the prior art, the through type electric water heater with double inner containers comprises an upper inner container, a lower inner container and two connecting pipes for communicating the upper inner container and the lower inner container. Adopt traditional equipment back integrative welding mode, must increase the double container interval for electric water heater's effective space reduces, influences user's use and experiences. The adoption is welded the mode respectively and is installed, has the sealed problem between the connecting pipe after two weldings again, simultaneously because welding deformation, two pairs of connecting tube connect simultaneously and must lead to the location problem.
CN205536499U discloses a water heater with a through anode device, the electric water heater disclosed in the patent technical scheme includes two inner containers, and also discloses that the two inner containers are mutually through, but does not provide the technical problem of how to solve the sealing and penetrating of the two inner containers.
CN208253943U discloses an electric water heater double inner container structure, and this technical scheme's double inner container is for erectting the setting side by side, and two inner container connecting line spaces are spacious, and the sealed connection problem is very solved to current technical scheme. However, the technical scheme cannot solve the problem of sealing the upper liner and the lower liner which are connected in a penetrating way, and particularly when the distance between the two liners needs to be shortened as much as possible, the existing technical scheme is implemented due to insufficient operation space.
CN203586523U discloses an electromagnetic water storage type ultrathin water heater with two inner containers, which does not disclose a sealing connection technical solution of a connection pipe between two inner containers, nor indicates how to reduce the distance between two inner containers on the premise of ensuring sealing.
The existing double-liner water heater has the defect that the whole space is enlarged due to overlarge distance between two liners; in the case of assembling two inner containers, welding operation cannot be performed in a narrow space, and welding quality reliability is lowered even if welding is performed only with difficulty.
In order to reliably connect the upper inner container and the lower inner container, the complex welding process caused by welding after assembly is avoided, and the problem that two groups of connecting pipelines cannot be accurately installed due to over-positioning is avoided; the invention solves the technical problems by providing a flexible composite connecting structure of double containers of the through type electric water heater.
Disclosure of Invention
The invention aims to provide a through type electric water heater double-liner flexible composite connecting structure to solve the technical problems.
In the technical scheme of the invention, the orientation terms such as upper liner, lower liner, upper connecting pipeline and lower connecting pipeline in the technical scheme of the invention are not only the position of the product when being installed, but also the orientation of a certain view in the attached drawings of the specification, and are distinguished for the convenience of description. Similarly, the term "convex" in the present specification is only used to express that the cross section of a certain technical feature extends or sweeps to a certain extent along the axis thereof in a certain direction, and the same description effect can be achieved by using "convex" or "concave" or other similar words, and the term "convex" and "concave" in the present specification is not the only explanation of the technical solution of the present invention.
Specifically, the invention is realized by adopting the following technical scheme:
the invention relates to a flexible composite connecting structure of double liners of a through type electric water heater, which comprises an upper liner, a lower liner, an upper connecting pipeline and a lower connecting pipeline, wherein the upper liner is connected with the upper connecting pipeline; the upper inner container and the upper connecting pipeline are connected into a whole, and the lower inner container and the lower connecting pipeline are connected into a whole; the upper connecting pipeline and the lower connecting pipeline are spliced together; a sealing ring is arranged between the upper connecting pipeline and the lower connecting pipeline; the lower connecting pipeline is sleeved with a sealing sleeve, and the sealing ring is arranged in a groove in the outer wall of the sealing sleeve; the end parts of the sealing sleeve and the lower connecting pipeline are provided with elastic devices.
Furthermore, the inner diameter of the upper connecting pipeline is changed in a step mode, and the outer diameter of the lower connecting pipeline is changed in a step mode; the inner diameter of the upper end of the upper connecting pipeline is changed from small to large, so that the inner contour of the upper end of the upper connecting pipeline forms an inner conical surface, and the outer diameter of the upper end of the lower connecting pipeline is changed from small to large, so that the outer contour of the upper end of the lower connecting pipeline forms an outer conical surface; the shape and the size of the inner conical surface of the upper connecting pipeline are matched with those of the outer conical surface of the lower connecting pipeline, so that the inner conical surface of the upper connecting pipeline is tightly attached to the outer conical surface of the lower connecting pipeline.
Furthermore, the invention relates to a flexible composite connecting structure of double liners of a through type electric water heater, wherein the whole upper liner and the whole lower liner are cylindrical in the middle, arc dome-shaped at two ends and provided with a heating device mounting hole at one end; the root of the joint of the upper connecting pipeline and the upper liner is a platform which protrudes out of the cylindrical bus of the upper liner; the upper connecting pipeline protrudes into the upper inner container; the root of the joint of the lower connecting pipeline and the lower inner container is a platform which protrudes out of a cylindrical bus of the lower inner container; the lower connecting pipeline protrudes out of the lower inner container; the lower connecting pipeline is inserted into the upper connecting pipeline, and the lower connecting pipeline and the upper connecting pipeline are in clearance fit.
Furthermore, the invention relates to a flexible composite connecting structure of double containers of a through type electric water heater, wherein an upper connecting pipeline and an upper container are welded into a whole, a lower connecting pipeline and a lower container are welded into a whole, and the outer wall of the lower connecting pipeline is provided with a groove for accommodating a sealing ring.
Furthermore, the upper connecting pipeline and the upper inner container are welded into a whole; the end of the upper connecting pipeline is provided with an end cover with a through hole, and the lower connecting pipeline and the lower inner container are welded into a whole; the outer wall of the upper connecting pipeline is provided with a groove for accommodating the sealing ring.
Furthermore, the invention relates to a flexible composite connection structure of double containers of a through type electric water heater, wherein the tail end of the upper connection pipeline is provided with an end cover provided with a through hole; the tail end of the lower connecting pipeline is tightly attached to an end cover with a through hole arranged at the tail end of the upper connecting pipeline.
Furthermore, the invention relates to a flexible composite connecting structure of double containers of a through type electric water heater, wherein the tail end of the upper connecting pipeline is provided with an end cover provided with a through hole; the tail end of the lower connecting pipeline is tightly attached to an end cover with a through hole arranged at the tail end of the upper connecting pipeline; an end face sealing ring is arranged between the tail end of the lower connecting pipeline and an end cover with a through hole arranged at the tail end of the upper connecting pipeline, and a groove for accommodating the end face sealing ring is arranged at the tail end of the lower connecting pipeline.
Furthermore, the invention relates to a flexible composite connecting structure of double containers of a through type electric water heater, which is characterized in that an upper connecting pipeline and a lower connecting pipeline are connected by adopting a buckle structure; the male head of the buckle structure of the upper connecting pipeline is buckled with the female head of the lower connecting pipeline.
Furthermore, the flexible composite connecting structure of the through type electric water heater double-liner also comprises a hanging device and a strapping tape, wherein the hanging device is fixedly connected with the upper liner and the lower liner simultaneously; the upper liner and the lower liner are fixedly bound together by the binding belt; the number of the strapping tapes is at least two.
Furthermore, the number of the sealing grooves is 2; the sealing ring is an O-shaped sealing ring.
Furthermore, the number of the sealing grooves is 3; the sealing ring is an O-shaped sealing ring.
The invention has the advantages that: the end face seal is matched with the cylindrical surface seal, so that the effective seal is kept while the connection pipeline is communicated; the flexible connection is realized by adopting an elastic device, the occurrence of the over-positioning problem is avoided, and the accurate insertion of the two groups of connecting pipelines is ensured; the structure is simple, the cost is low, the connection is reliable, and the sealing is tight.
Drawings
FIG. 1 is a three-dimensional schematic view of a flexible composite connection structure of double bladders of a run-through electric water heater according to the present invention;
FIG. 2 is a schematic longitudinal sectional view of a double-bladder flexible composite connection structure of a run-through electric water heater according to the present invention;
FIG. 3 is a schematic cross-sectional view of a flexible composite connection structure of a double bladder of a run-through electric water heater according to the present invention;
FIG. 4 is a partially enlarged cross-sectional view of the flexible composite connecting structure of the double bladders of the run-through electric water heater according to the present invention;
FIG. 5 is a schematic cross-sectional view of a lower connecting pipeline of a flexible composite connecting structure of double bladders of a run-through electric water heater according to the present invention;
FIG. 6 is a three-dimensional schematic view of a lower connecting pipeline of a flexible composite connecting structure of double bladders of a run-through electric water heater according to the present invention;
FIG. 7 is a schematic sectional view of an upper connecting pipeline of a flexible composite connecting structure of double bladders of a run-through electric water heater according to the present invention;
the symbols in the drawings illustrate that: 1. an upper inner container; 2. a lower liner; 3. an upper connecting pipeline; 4. a lower connecting pipeline; 5. a seal ring; 6. a sealing sleeve; 7. an elastic device; 8. a heating device mounting hole; 9. an end cap; 10. an end face seal ring; 11. a hanging device; 12. a buckle structure; 1201. a male head of a buckle structure; 1202. buckling a structural female head; 13. and (4) strapping tapes.
Detailed Description
The technical solutions in the embodiments of the present invention will be further described below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention.
Example 1:
as shown in fig. 1-7, the flexible composite connection structure for the double inner containers of the through-type electric water heater of the invention comprises an upper inner container 1, a lower inner container 2, an upper connecting pipeline 3 and a lower connecting pipeline 4; the upper liner 1 is connected with an upper connecting pipeline 3 into a whole, and the lower liner 2 is connected with a lower connecting pipeline 4 into a whole; the upper connecting pipeline 3 and the lower connecting pipeline 4 are spliced together; a sealing ring 5 is arranged between the upper connecting pipeline 3 and the lower connecting pipeline 4; a sealing sleeve 6 is sleeved outside the lower connecting pipeline 4, and the sealing ring 5 is arranged in a groove in the outer wall of the sealing sleeve 6; the sealing sleeve 6 and the end part of the lower connecting pipeline 4 are provided with elastic devices 7.
Furthermore, the inner diameter of the upper connecting pipeline 3 is changed in a step mode, and the outer diameter of the lower connecting pipeline 4 is changed in a step mode; the inner diameter of the upper end of the upper connecting pipeline 3 changes from small to large so that the inner contour of the upper end of the upper connecting pipeline 3 forms an inner conical surface, and the outer diameter of the upper end of the lower connecting pipeline 4 changes from small to large so that the outer contour of the upper end of the lower connecting pipeline 4 forms an outer conical surface; the shape and the size of the inner conical surface of the upper connecting pipeline 3 are matched with the shape and the size of the outer conical surface of the lower connecting pipeline 4, so that the inner conical surface of the upper connecting pipeline 3 is tightly attached to the outer conical surface of the lower connecting pipeline 4.
Furthermore, the invention relates to a flexible composite connection structure of double containers of a through type electric water heater, wherein the upper container 1 and the lower container 2 are both integrally cylindrical in the middle, arc-dome-shaped at two ends, and a heating device mounting hole 8 is arranged at one end; the root of the joint of the upper connecting pipeline 3 and the upper liner 1 is a platform which protrudes out of the cylindrical bus of the upper liner; the upper connecting pipeline 3 protrudes into the upper inner container 1; the root of the joint of the lower connecting pipeline 4 and the lower liner 2 is a platform which protrudes out of a cylindrical bus of the lower liner; the lower connecting pipeline 4 protrudes out of the lower inner container 2; the lower connecting pipeline 4 is inserted into the upper connecting pipeline 3, and the lower connecting pipeline 4 is in clearance fit with the upper connecting pipeline 3.
Furthermore, the invention relates to a flexible composite connection structure of double liners of a through type electric water heater, wherein an upper connecting pipeline 3 and an upper liner 1 are welded into a whole, a lower connecting pipeline 4 and a lower liner 2 are welded into a whole, and the outer wall of the lower connecting pipeline 4 is provided with a groove for accommodating a sealing ring 5.
Furthermore, the invention relates to a flexible composite connecting structure of double liners of a through type electric water heater, wherein an upper connecting pipeline 3 and an upper liner 1 are welded into a whole; the end of the upper connecting pipeline 3 is provided with an end cover 9 with a through hole, and the lower connecting pipeline 4 and the lower liner 2 are welded into a whole; the outer wall of the upper connecting pipeline 4 is provided with a groove for accommodating the sealing ring 5.
Furthermore, the invention relates to a flexible composite connection structure of double containers of a through type electric water heater, wherein the tail end of the upper connection pipeline is provided with an end cover 9 with a through hole; the tail end of the lower connecting pipeline 4 is tightly attached to an end cover 9 with a through hole arranged at the tail end of the upper connecting pipeline 3.
Furthermore, the invention relates to a flexible composite connecting structure of a through type electric water heater double-liner, wherein the tail end of the upper connecting pipeline 3 is provided with an end cover 9 with a through hole; the tail end of the lower connecting pipeline 4 is tightly attached to an end cover 9 with a through hole arranged at the tail end of the upper connecting pipeline 3; an end face sealing ring 10 is arranged between the tail end of the lower connecting pipeline 4 and an end cover 9 with a through hole arranged at the tail end of the upper connecting pipeline 3, and a groove for accommodating the end face sealing ring 10 is arranged at the tail end of the lower connecting pipeline 4.
Furthermore, the flexible composite connecting structure of the through type electric water heater double-liner also comprises a hanging device 11 and a strapping tape 13, wherein the hanging device 11 is fixedly connected with the upper liner 1 and the lower liner 2 simultaneously; the upper liner 1 and the lower liner 2 are fixedly bound together by the binding belt 13; the number of the binding tapes 13 is two.
Furthermore, the number of sealing grooves for accommodating the sealing rings 5 is 2; the sealing ring 5 is an O-shaped sealing ring.
Example 2:
as shown in fig. 1-7, the difference between the embodiment 2 and the embodiment 1 is that the number of the sealing grooves for accommodating the sealing rings 5 is 3 in the flexible composite connection structure of the through electric water heater dual bladder according to the present invention; the sealing ring 5 is an O-shaped sealing ring.
Example 3:
as shown in fig. 1 to 7, the difference between the embodiment 3 and the embodiment 1 is that, in the flexible composite connecting structure of the through type electric water heater dual bladder according to the present invention, the upper connecting pipeline 3 and the lower connecting pipeline 4 are connected by a snap structure 12; the male buckle structure head 1201 of the upper connecting pipeline 3 is buckled with the female buckle structure head 1202 of the lower connecting pipeline 4.
The invention has the advantages that: the end face seal is matched with the cylindrical surface seal, so that the effective seal is kept while the connection pipeline is communicated; the flexible connection is realized by adopting an elastic device, the occurrence of the over-positioning problem is avoided, and the accurate insertion of the two groups of connecting pipelines is ensured; the structure is simple, the cost is low, the connection is reliable, and the sealing is tight.
The foregoing embodiments are merely exemplary for the purpose of clearly illustrating the invention and it will be apparent to those skilled in the art that variations and modifications are possible in light of the above teachings and all such variations and modifications are considered to be within the scope of the invention.
Claims (10)
1. A flexible composite connection structure of double liners of a through type electric water heater is characterized by comprising an upper liner, a lower liner, an upper connecting pipeline and a lower connecting pipeline; the upper inner container and the upper connecting pipeline are connected into a whole, and the lower inner container and the lower connecting pipeline are connected into a whole; the upper connecting pipeline and the lower connecting pipeline are spliced together; a sealing ring is arranged between the upper connecting pipeline and the lower connecting pipeline; the lower connecting pipeline is externally sleeved with a sealing sleeve, and the sealing ring is arranged in a groove in the outer wall of the sealing sleeve; the end parts of the sealing sleeve and the lower connecting pipeline are provided with elastic devices.
2. A through type electric water heater double bladder flexible composite connection structure as claimed in claim 1, wherein the inner diameter of the upper connection pipeline is in step change, and the outer diameter of the lower connection pipeline is in step change; the inner diameter of the upper end of the upper connecting pipeline changes from small to large so that the inner contour of the upper end of the upper connecting pipeline forms an inner conical surface, and the outer diameter of the upper end of the lower connecting pipeline changes from small to large so that the outer contour of the upper end of the lower connecting pipeline forms an outer conical surface; the shape and the size of the inner conical surface of the upper connecting pipeline are matched with those of the outer conical surface of the lower connecting pipeline, so that the inner conical surface of the upper connecting pipeline is tightly attached to the outer conical surface of the lower connecting pipeline.
3. The through type electric water heater double-liner flexible composite connection structure as claimed in claim 1, wherein the upper liner and the lower liner are both cylindrical in the middle, arc dome-shaped at both ends and provided with a heating device mounting hole at one end; the root of the joint of the upper connecting pipeline and the upper liner is a platform which protrudes out of the cylindrical bus of the upper liner; the upper connecting pipeline protrudes into the upper inner container; the root of the joint of the lower connecting pipeline and the lower inner container is a platform which protrudes out of a cylindrical bus of the lower inner container; the lower connecting pipeline protrudes out of the lower inner container; the lower connecting pipeline is inserted into the upper connecting pipeline, and the lower connecting pipeline and the upper connecting pipeline are in clearance fit.
4. A through type electric water heater double-liner flexible composite connection structure as claimed in claim 3, wherein said upper connection pipeline and upper liner are welded together, said lower connection pipeline and lower liner are welded together, and the outer wall of said lower connection pipeline is provided with a groove for accommodating the sealing ring.
5. A through type electric water heater double-liner flexible composite connection structure as claimed in claim 3, wherein said upper connection pipeline and upper liner are welded together; the end of the upper connecting pipeline is provided with an end cover with a through hole, and the lower connecting pipeline and the lower inner container are welded into a whole; the outer wall of the upper connecting pipeline is provided with a groove for accommodating the sealing ring.
6. A through type electric water heater double bladder flexible composite connection structure as claimed in claim 4, wherein the end of said upper connecting pipeline is provided with an end cap with through hole; the tail end of the lower connecting pipeline is tightly attached to an end cover with a through hole arranged at the tail end of the upper connecting pipeline.
7. A through type electric water heater double bladder flexible composite connection structure as claimed in claim 4, wherein the end of said upper connecting pipeline is provided with an end cap with through hole; the tail end of the lower connecting pipeline is tightly attached to an end cover with a through hole arranged at the tail end of the upper connecting pipeline; an end face sealing ring is arranged between the tail end of the lower connecting pipeline and an end cover with a through hole arranged at the tail end of the upper connecting pipeline, and a groove for accommodating the end face sealing ring is arranged at the tail end of the lower connecting pipeline.
8. A through type electric water heater double-bladder flexible composite connection structure as claimed in claim 4, wherein said upper connection pipeline and lower connection pipeline are connected by a snap structure; the male head of the buckle structure of the upper connecting pipeline is buckled with the female head of the lower connecting pipeline.
9. A through type electric water heater double-liner flexible composite connection structure as claimed in any one of claims 1-8, further comprising a hanging device and a strapping tape, wherein the hanging device is fixedly connected with the upper liner and the lower liner at the same time; the upper liner and the lower liner are fixedly bound together by the binding belt.
10. A through type electric water heater double-liner flexible composite connection structure as claimed in claim 4 or 5, wherein the number of said sealing grooves is 2-3, and the sealing ring is O-shaped sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210088076.9A CN114440461A (en) | 2022-01-25 | 2022-01-25 | Flexible composite connection structure of through type electric water heater double-container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210088076.9A CN114440461A (en) | 2022-01-25 | 2022-01-25 | Flexible composite connection structure of through type electric water heater double-container |
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| CN114440461A true CN114440461A (en) | 2022-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210088076.9A Pending CN114440461A (en) | 2022-01-25 | 2022-01-25 | Flexible composite connection structure of through type electric water heater double-container |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2454587Y (en) * | 2000-09-27 | 2001-10-17 | 何茂财 | Inner-tube mouth sealing device of water-storage type electric water heater |
| WO2015135317A1 (en) * | 2014-03-13 | 2015-09-17 | 芜湖美的厨卫电器制造有限公司 | Water heater |
| CN212205046U (en) * | 2019-11-19 | 2020-12-22 | 青岛经济技术开发区海尔热水器有限公司 | Double-liner electric water heater |
| CN214370965U (en) * | 2020-12-28 | 2021-10-08 | 广东万和电气有限公司 | Connection structure and have its two inner bags electric water heater |
| CN113518879A (en) * | 2019-04-01 | 2021-10-19 | 斯瓦戈洛克公司 | Push to connect catheter adapter assembly and device |
| CN217082944U (en) * | 2022-01-25 | 2022-07-29 | 青岛理工大学 | Flexible composite structure for connecting through type double-liner electric water heater |
-
2022
- 2022-01-25 CN CN202210088076.9A patent/CN114440461A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2454587Y (en) * | 2000-09-27 | 2001-10-17 | 何茂财 | Inner-tube mouth sealing device of water-storage type electric water heater |
| WO2015135317A1 (en) * | 2014-03-13 | 2015-09-17 | 芜湖美的厨卫电器制造有限公司 | Water heater |
| CN113518879A (en) * | 2019-04-01 | 2021-10-19 | 斯瓦戈洛克公司 | Push to connect catheter adapter assembly and device |
| CN212205046U (en) * | 2019-11-19 | 2020-12-22 | 青岛经济技术开发区海尔热水器有限公司 | Double-liner electric water heater |
| CN214370965U (en) * | 2020-12-28 | 2021-10-08 | 广东万和电气有限公司 | Connection structure and have its two inner bags electric water heater |
| CN217082944U (en) * | 2022-01-25 | 2022-07-29 | 青岛理工大学 | Flexible composite structure for connecting through type double-liner electric water heater |
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