CN217082943U - Composite flexible connecting structure of double-liner water heater - Google Patents
Composite flexible connecting structure of double-liner water heater Download PDFInfo
- Publication number
- CN217082943U CN217082943U CN202220209535.XU CN202220209535U CN217082943U CN 217082943 U CN217082943 U CN 217082943U CN 202220209535 U CN202220209535 U CN 202220209535U CN 217082943 U CN217082943 U CN 217082943U
- Authority
- CN
- China
- Prior art keywords
- liner
- inner container
- water gap
- connecting pipeline
- double
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 157
- 239000002131 composite material Substances 0.000 title claims abstract description 35
- 238000007789 sealing Methods 0.000 claims description 15
- 230000007246 mechanism Effects 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 6
- 238000005485 electric heating Methods 0.000 claims description 4
- 230000001154 acute effect Effects 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 abstract description 10
- 238000005452 bending Methods 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Images
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model belongs to the technical field of electric water heater, concretely relates to compound flexible connection structure of two courage water heaters. In order to avoid the over-positioning problem when two inner bags are connected, reduce the interval between the inner bags as far as possible simultaneously, the utility model discloses a compound flexible connection structure of two courage water heaters solves above-mentioned technical problem. The utility model relates to a composite flexible connection structure of a double-liner water heater, an upper liner and a lower liner are connected in a through way through a bending connection pipeline and a vertical connection pipeline; the bent connecting pipeline connects the inclined water gap of the upper inner container with the inclined water gap of the lower inner container, and the vertical connecting pipeline connects the straight water gap of the upper inner container with the straight water gap of the lower inner container; the bent connecting pipeline is a flexible pipeline. The utility model has the advantages that: the flexible connection structure is adopted to ensure that the double-liner pipeline connection avoids the problem of positioning displacement caused by over-positioning.
Description
Technical Field
The utility model belongs to the technical field of electric water heater, concretely relates to hollow riveted through type double-liner electric water heater's inner bag connection structure.
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. Due to the influence of machining and installation errors, the upper pipe and the lower pipe in the two connecting pipes are difficult to align, and even if the upper pipe and the lower pipe are barely aligned, the connecting part has large deformation stress, and the service life of a product is influenced.
CN205536499U discloses a water heater with a through anode device, the electric water heater disclosed in the patent technical solution includes two inner containers, and also discloses that the two inner containers are mutually through, but does not provide a technical problem 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 double-liner water heater has the defect that the whole space is enlarged due to overlarge distance between the two liners; welding deformation is not easy to align the two connecting pipelines simultaneously; the space between the two inner containers of the double-container water heater is reduced as much as possible, and meanwhile, the connection management alignment is guaranteed, and the welding stress is reduced as much as possible.
In order to make upper and lower inner bag reliably connect, avoid influencing the pipeline alignment because welding deformation, make upper and lower inner bag intercommunication be the effective seal of guaranteeing connecting line simultaneously, reduce the interval between the inner bag as far as possible, the utility model discloses a technical scheme of a flexonics's two courage water heater structures solves above-mentioned technical problem.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a flexible connection's two courage water heater structures solve above-mentioned technical problem.
The utility model discloses some position nouns among the technical scheme, such as go up inner bag, lower inner bag, go up connecting tube, down the position word in the connecting tube "go up" or "down" neither mean the position of product when the installation, also mean the position of a certain view of specification attached drawing, just distinguish for the convenience of description.
Specifically, the utility model discloses an adopt following technical scheme to realize:
the utility model relates to a composite flexible connection structure of a double-liner water heater, which comprises an upper liner, a lower liner, a bending connection pipeline and a vertical connection pipeline; the upper inner container is provided with a straight water gap and an inclined water gap, the lower inner container is provided with a straight water gap and an inclined water gap, and the straight water gap and the inclined water gap arranged on the upper inner container correspond to the straight water gap and the inclined water gap arranged on the lower inner container in position; the bent connecting pipeline connects the inclined water gap of the upper inner container with the inclined water gap of the lower inner container, and the vertical connecting pipeline connects the straight water gap of the upper inner container with the straight water gap of the lower inner container; the bent connecting pipeline is a flexible pipeline.
Or as an optimized scheme, the composite flexible connection structure of the double-liner water heater comprises an upper liner, a lower liner and a bent connection pipeline; the upper inner container is provided with an inclined water gap, and the lower inner container is provided with an inclined water gap matched with the inclined water gap of the upper inner container in position and size; the bent connecting pipeline connects the inclined water gap of the upper inner container with the inclined water gap of the lower inner container; the bent connecting pipeline is a flexible pipeline; and a supporting cushion block is arranged between the upper inner container and the lower inner container.
Further, as a preferred option, the composite flexible connection structure of the double-liner water heater of the utility model is characterized in that the upper liner and the lower liner are both integrally cylindrical in the middle and arc dome-shaped at both ends, and one end of the upper liner and the lower liner is provided with an electric heating device mounting hole; the joint of the upper inner container and the inclined water gap and the straight water gap arranged on the upper inner container is a platform protruding out of a cylindrical bus of the upper inner container; the root of the joint of the lower liner and the inclined water port and the straight water port arranged on the lower liner is a platform which is protruded out of the cylindrical bus of the lower liner; the bent connecting pipeline is respectively connected with the two inclined water ports of the upper inner container and the lower inner container, and the vertical connecting pipeline is respectively connected with the two straight water ports of the upper inner container and the lower inner container, so that the upper inner container and the lower inner container are communicated; and a supporting cushion block is arranged between the upper inner container and the lower inner container.
Furthermore, the utility model discloses a compound flexible connection structure of two courage water heaters, vertical connecting line include upper courage connecting line, lower courage connecting line; the upper liner and the upper liner are connected into a whole through a connecting pipeline, and the lower liner are connected into a whole through a connecting pipeline; the upper liner connecting pipeline and the lower liner connecting pipeline are spliced together; a sealing ring is arranged between the upper liner connecting pipeline and the lower liner connecting pipeline.
Furthermore, the utility model discloses a compound flexible connection structure of two courage water heaters, the straight mouth of a river of upper inner bag and the straight mouth of a river of lower inner bag central axis coincide; the vertical connecting pipeline connects the straight water port of the upper inner container with the straight water port of the lower inner container and is welded with the upper inner container and the lower inner container.
Furthermore, the utility model discloses a compound flexible connection structure of two courage water heaters, the upper liner with the central axis of the oblique mouth of a river that is equipped with and the projection of the straight mouth of a river central axis of upper liner on the cross section of upper liner do not coincide and its contained angle is the acute angle; the central axis of the upper inner container and the inclined water gap arranged on the upper inner container and the central axis of the straight water gap of the upper inner container pass through the central axis of the upper inner container.
Further, a compound flexible connection structure of two courage water heaters, the maximum perpendicular distance of projection profile line distance inner bag cross section outer fringe of crooked connecting line on the inner bag cross section be less than 8 mm.
Furthermore, the composite flexible connection structure of the double-liner water heater of the utility model also comprises a hanging mechanism and a strapping tape, wherein the hanging mechanism is fixedly connected with the upper liner and the lower liner at the same time, and the number of the hanging mechanisms is 2; the upper liner and the lower liner are fixedly bound together by the binding belt; the strapping tape is at least two.
Furthermore, the composite flexible connecting structure of the double-liner water heater of the utility model is characterized in that the upper liner comprises a left half liner and a right half liner; the left half liner and the right half liner are welded together; the lower liner comprises a left half liner and a right half liner; the left half liner and the right half liner are welded together; the left and right half-liners of the upper inner liner are formed by drawing metal plates, and the left and right half-liners of the lower inner liner are formed by drawing metal plates.
Further, a compound flexible connection structure of two courage water heaters, last inner bag and be provided with the cushion block down between the inner bag, cushion block quantity be 2.
The utility model has the advantages that: the flexible connection structure is adopted to connect the double-liner pipelines, so that the problem of positioning, dislocation and trimming caused by over-positioning is avoided; the pipeline connecting process can be flexibly selected; the minimum increase in thickness is used to minimize the height distance between the double bladders.
Drawings
Fig. 1 is a three-dimensional schematic view of a composite flexible connection structure of a double-liner water heater according to the present invention;
fig. 2 is a front view of the composite flexible connection structure of the double-liner water heater of the present invention;
fig. 3 is a side view of the composite flexible connecting structure of the double-liner water heater of the present invention;
fig. 4 is a schematic cross-sectional view of an embodiment 1 of a composite flexible connection structure of a double-liner water heater according to the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4;
fig. 6 is a schematic longitudinal sectional view of an upper tank connecting pipeline in embodiment 1 of the composite flexible connecting structure of a double-tank water heater according to the present invention;
fig. 7 is a schematic cross-sectional view of an embodiment 2 of a composite flexible connection structure of a double-liner water heater according to the present invention;
FIG. 8 is an enlarged view of a portion of FIG. 7;
fig. 9 is a schematic longitudinal sectional view of an upper tank connecting pipeline in embodiment 2 of the composite flexible connecting structure of a double-tank water heater according to the present invention;
fig. 10 is a schematic structural view of a straight water gap portion of an embodiment 3 of a composite flexible connection structure of a double-liner water heater according to the present invention;
FIG. 11 is an enlarged view of a portion of FIG. 10;
the symbols in the drawings illustrate that: 1. an upper inner container; 2. a lower liner; 3. bending the connecting pipeline; 4. vertically connecting pipelines; 5. an electric heating device mounting hole; 6. a seal ring; 7. a hanging mechanism; 401. the upper liner is connected with a pipeline; 402. The lower liner is connected with a pipeline; 8. an end face seal ring; 9. sealing the end cap; 10. supporting the cushion block; 11. and (4) strapping tapes.
Detailed Description
The technical solution in the embodiment of the present invention will be further described with reference to the accompanying drawings. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments.
Example 1:
as shown in fig. 1-6, the composite flexible connection structure of a double-liner water heater of the present invention comprises an upper liner 1, a lower liner 2, a curved connection pipeline 3, and a vertical connection pipeline 4; the upper liner 1 is provided with a straight water gap and an inclined water gap, the lower liner 2 is provided with a straight water gap and an inclined water gap, and the straight water gap and the inclined water gap arranged on the upper liner 1 correspond to the straight water gap and the inclined water gap arranged on the lower liner 2; the bent connecting pipeline 3 connects the inclined water gap of the upper inner container 1 with the inclined water gap of the lower inner container 2, and the vertical connecting pipeline 4 connects the straight water gap of the upper inner container 1 with the straight water gap of the lower inner container 4.
Furthermore, the composite flexible connection structure of the double-liner water heater of the utility model is characterized in that the upper liner 1 and the lower liner 2 are both cylindrical in the middle and arc dome-shaped at both ends, and one end of the upper liner and the lower liner is provided with an electric heating device mounting hole 5; the joint of the upper inner container 1 and the inclined water gap and the straight water gap arranged on the upper inner container is a platform protruding out of a cylindrical bus of the upper inner container; the root of the joint of the lower liner 2 and the inclined water gap and the straight water gap arranged on the lower liner is a platform which is protruded out of the cylindrical bus of the lower liner; the bent connecting pipeline 3 is respectively connected with two inclined water gaps of the upper inner container and the lower inner container, and the vertical connecting pipeline 4 is respectively connected with two straight water gaps of the upper inner container and the lower inner container, so that the upper inner container and the lower inner container are communicated; and a supporting cushion block 10 is arranged between the upper inner container 1 and the lower inner container 2.
Furthermore, the composite flexible connecting structure of the double-liner water heater of the utility model is characterized in that the vertical connecting pipeline 4 comprises an upper liner connecting pipeline 401 and a lower liner connecting pipeline 402; the upper liner 1 is connected with an upper liner connecting pipeline 401 into a whole, and the lower liner 2 is connected with a lower liner connecting pipeline 402 into a whole; the upper liner connecting pipeline 401 and the lower liner connecting pipeline 402 are spliced together; a sealing ring 6 is arranged between the side walls of the upper liner connecting pipeline 402 and the lower liner connecting pipeline 402.
Preferably, in the composite flexible connection structure of the double-liner water heater of the present invention, the outer wall of the lower liner connection pipeline 402 is provided with a groove for accommodating the sealing ring 6; further preferably, the number of the grooves is 2, so that more effective sealing is realized.
On the basis of the above scheme, further, the uppermost end of the upper liner connecting pipeline 401 is provided with a sealing end cover 9 with a through hole, and the sealing end cover 9 is provided with a groove for accommodating the end face sealing ring 8, so that end face sealing is realized.
Furthermore, the utility model discloses a compound flexible connection structure of two courage water heaters, the straight water gap of upper inner bag 1 with lower inner bag 2 straight water gap central axis coincide; the vertical connecting pipeline 4 connects the straight water port of the upper inner container 1 with the straight water port of the lower inner container 2, and the vertical connecting pipeline 4 is welded with the upper inner container 1 and the lower inner container 2.
Furthermore, the utility model discloses a compound flexible connection structure of two courage water heaters, the central axis of upper inner bag 1 and the oblique mouth of a river that it is equipped with and the projection contained angle of the straight mouth of a river central axis of upper inner bag 1 on the cross section of upper inner bag 1 are acute angles; the central axis of the upper inner container 1 and the inclined water gap arranged on the upper inner container and the central axis of the straight water gap of the upper inner container 1 pass through the central axis of the upper inner container 1.
Further, a compound flexible connection structure of two courage water heaters, crooked connecting line 3 projection profile on the inner bag cross section circumscribed line distance inner bag cross section outer fringe the biggest perpendicular distance be less than 8 mm.
Furthermore, the composite flexible connection structure of the double-liner water heater of the utility model also comprises a hanging mechanism 7 and a strapping tape 11, wherein the hanging mechanism 7 is fixedly connected with the upper liner 1 and the lower liner 2 at the same time, and the number of the hanging mechanisms 7 is 2; the upper liner 1 and the lower liner 2 are fixedly bound together by the binding belt 11; the number of the strapping tapes 11 is two.
Furthermore, the composite flexible connecting structure of the double-liner water heater of the utility model is characterized in that the upper liner 1 comprises a left half liner and a right half liner; the left half liner and the right half liner are welded together; the lower liner 2 comprises a left half liner and a right half liner; the left half liner and the right half liner are welded together; the left and right half liners of the upper liner 1 are formed by drawing metal plates, and the left and right half liners of the lower liner 2 are formed by drawing metal plates.
Example 2:
as shown in fig. 1-3 and 7-9, the difference between the embodiment 2 and the embodiment 1 is that, in the composite flexible connecting structure of the dual-liner water heater of the present invention, the inner wall of the upper liner connecting pipeline 401 is provided with a groove for accommodating the sealing ring 6; further preferably, the number of the grooves is 2, so that a plurality of seals are established.
Example 3:
as shown in fig. 1-3 and 8, the difference between the embodiment 3 and the embodiment 1 is that the composite flexible connecting structure of the double-liner water heater of the present invention includes an upper liner 1, a lower liner 2, and a curved connecting pipeline 3; the upper liner 1 is provided with an inclined water gap, and the lower liner 2 is provided with an inclined water gap matched with the inclined water gap of the upper liner 1 in position and size; the bent connecting pipeline 3 connects the inclined water gap of the upper inner container 1 with the inclined water gap of the lower inner container 2; the bent connecting pipeline 3 is a flexible pipeline; a supporting cushion block 10 is arranged between the upper inner container 1 and the lower inner container 2; the number of the bent connecting pipelines 3 is 2; the number of the supporting cushion blocks 10 is 2.
Example 4:
as shown in fig. 1-3 and 10-11, the difference between the embodiment 3 and the embodiment 1 is that, in the composite flexible connecting structure of the double-liner water heater of the present invention, the central axis of the straight water gap of the upper liner 1 coincides with the central axis of the straight water gap of the lower liner 2; the vertical connecting pipeline 4 connects the straight water port of the upper inner container 1 with the straight water port of the lower inner container 2, and the vertical connecting pipeline 4 is respectively welded and fixed with the upper inner container 2 and the lower inner container 2.
The above embodiments are merely examples for clearly illustrating the present invention. Variations and modifications will occur to those skilled in the art in light of the foregoing description, and it is intended to cover all such variations and modifications as fall within the scope of the invention.
Claims (10)
1. A composite flexible connecting structure of a double-liner water heater is characterized by comprising an upper liner, a lower liner, a bent connecting pipeline and a vertical connecting pipeline; the upper inner container is provided with a straight water gap and an inclined water gap, the lower inner container is provided with a straight water gap and an inclined water gap, and the straight water gap and the inclined water gap arranged on the upper inner container correspond to the straight water gap and the inclined water gap arranged on the lower inner container in position; the bent connecting pipeline connects the inclined water gap of the upper inner container with the inclined water gap of the lower inner container, and the vertical connecting pipeline connects the straight water gap of the upper inner container with the straight water gap of the lower inner container; the bent connecting pipeline is a flexible pipeline.
2. The composite flexible connection structure of a double-liner water heater as claimed in claim 1, wherein the upper liner and the lower liner are both cylindrical in the middle and arc dome-shaped at both ends, and one end of the upper liner and the lower liner is provided with an electric heating device mounting hole; the joint of the upper inner container and the inclined water gap and the straight water gap arranged on the upper inner container is a platform protruding out of a cylindrical bus of the upper inner container; the root of the joint of the lower liner and the inclined water gap and the straight water gap arranged on the lower liner is a platform which protrudes out of a cylindrical bus of the lower liner; the bent connecting pipeline is respectively connected with the two inclined water ports of the upper inner container and the lower inner container, and the vertical connecting pipeline is respectively connected with the two straight water ports of the upper inner container and the lower inner container, so that the upper inner container and the lower inner container are communicated; and a supporting cushion block is arranged between the upper inner container and the lower inner container.
3. The composite flexible connecting structure of a double-liner water heater as claimed in claim 1, wherein the vertical connecting pipeline comprises an upper liner connecting pipeline and a lower liner connecting pipeline; the upper liner and the upper liner are connected into a whole through a connecting pipeline, and the lower liner are connected into a whole through a connecting pipeline; the upper liner connecting pipeline and the lower liner connecting pipeline are spliced together; an end face sealing ring is arranged between the upper liner connecting pipeline and the lower liner connecting pipeline.
4. The composite flexible connecting structure of the double-liner water heater as claimed in claim 1, wherein the central axis of the straight water port of the upper liner coincides with the central axis of the straight water port of the lower liner; the vertical connecting pipeline connects the straight water port of the upper inner container with the straight water port of the lower inner container and is welded with the upper inner container and the lower inner container.
5. The composite flexible connecting structure of a double-liner water heater as claimed in claim 2, wherein the projection of the central axis of the inclined water gap of the upper liner and the central axis of the straight water gap of the upper liner on the cross section of the upper liner are not coincident and the included angle is an acute angle; the central axis of the upper inner container and the inclined water gap arranged on the upper inner container and the central axis of the straight water gap of the upper inner container pass through the central axis of the upper inner container.
6. The composite flexible connecting structure of a double-liner water heater as claimed in claim 2, wherein the maximum perpendicular distance of the projected contour line of the curved connecting pipeline on the cross section of the liner from the outer edge of the cross section of the liner is less than 8 mm.
7. The composite flexible connecting structure of the double-liner water heater as claimed in claim 2, further comprising a hanging mechanism and strapping tapes, wherein the hanging mechanism is fixedly connected with the upper liner and the lower liner at the same time, and the number of the hanging mechanisms is 2; the upper liner and the lower liner are fixedly bound together by the binding belt.
8. A composite flexible connection structure of a double-liner water heater is characterized by comprising an upper liner, a lower liner and a bent connection pipeline; the upper inner container is provided with an inclined water gap, and the lower inner container is provided with an inclined water gap matched with the inclined water gap of the upper inner container in position and size; the bent connecting pipeline connects the inclined water gap of the upper inner container with the inclined water gap of the lower inner container; the bent connecting pipeline is a flexible pipeline.
9. The composite flexible connecting structure of a double-liner water heater as claimed in claim 8, wherein a supporting cushion block is arranged between the upper liner and the lower liner.
10. The composite flexible connecting structure of a double-liner water heater as claimed in any one of claims 1 to 9, wherein the upper liner comprises a left half liner and a right half liner; the left half liner and the right half liner are welded together; the lower liner comprises a left half liner and a right half liner; the left half liner and the right half liner are welded together; the left and right half-liners of the upper inner liner are formed by drawing metal plates, and the left and right half-liners of the lower inner liner are formed by drawing metal plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220209535.XU CN217082943U (en) | 2022-01-25 | 2022-01-25 | Composite flexible connecting structure of double-liner water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220209535.XU CN217082943U (en) | 2022-01-25 | 2022-01-25 | Composite flexible connecting structure of double-liner water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217082943U true CN217082943U (en) | 2022-07-29 |
Family
ID=82541730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220209535.XU Expired - Fee Related CN217082943U (en) | 2022-01-25 | 2022-01-25 | Composite flexible connecting structure of double-liner water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217082943U (en) |
-
2022
- 2022-01-25 CN CN202220209535.XU patent/CN217082943U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217082943U (en) | Composite flexible connecting structure of double-liner water heater | |
| CN217082944U (en) | Flexible composite structure for connecting through type double-liner electric water heater | |
| CN217082939U (en) | Composite flexible connecting structure of hollow riveting through type electric water heater double containers | |
| CN217082940U (en) | Double-liner spherical surface flexible connection composite conical surface structure of through electric water heater | |
| CN217082937U (en) | Flexible-connection conical surface composite structure of through type double-liner electric water heater | |
| CN217082938U (en) | Flexible composite connection structure of through type double-liner electric water heater | |
| CN214008205U (en) | Valve flange seal structure | |
| CN213021126U (en) | Novel zirconium heat exchanger | |
| CN212801836U (en) | Connecting structure of toilet bowl elbow and inner container | |
| CN217082942U (en) | Composite structure of flexible connection through type electric water heater double containers | |
| CN208778965U (en) | Tube joint assembly and water heater | |
| CN212731634U (en) | Multi-tube type plasma desulfurization and denitrification device | |
| CN217082941U (en) | Composite conical surface flexible connection structure of through type double-container electric water heater | |
| CN214093410U (en) | Glass fiber reinforced sealing mechanism with good sealing performance for water heater valve | |
| CN215983252U (en) | Electric water heater inner container and electric water heater | |
| CN218000773U (en) | Eccentric side port | |
| CN210088217U (en) | Explosion-proof connecting piece for water supply and drainage pipe | |
| CN218179262U (en) | End cover, electric water heater inner container and electric water heater | |
| CN2399829Y (en) | Sealed lead-acid storage battery shell | |
| CN215559775U (en) | Septic tank convenient to construction installation | |
| CN217423657U (en) | Solar heat collector inner container and solar water heater | |
| CN216204344U (en) | Electric water heater inner container and electric water heater | |
| CN219082480U (en) | Hollow wall winding pipe with compression-resistant structure | |
| CN210266323U (en) | Overlap welding middle threaded joint suitable for O-shaped rubber sealing | |
| CN212564790U (en) | Integral double-circuit vacuum tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220729 |