CN109058541A - A kind of current limiter - Google Patents
A kind of current limiter Download PDFInfo
- Publication number
- CN109058541A CN109058541A CN201810960354.9A CN201810960354A CN109058541A CN 109058541 A CN109058541 A CN 109058541A CN 201810960354 A CN201810960354 A CN 201810960354A CN 109058541 A CN109058541 A CN 109058541A
- Authority
- CN
- China
- Prior art keywords
- slide bar
- pipelined channel
- channel
- sealing
- current limiter
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000009434 installation Methods 0.000 claims abstract description 31
- 108091006146 Channels Proteins 0.000 claims description 98
- 238000007789 sealing Methods 0.000 claims description 43
- 102000010637 Aquaporins Human genes 0.000 claims description 3
- 108010063290 Aquaporins Proteins 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 2
- 102000018395 Aquaporin 10 Human genes 0.000 description 1
- 108050007613 Aquaporin 10 Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/34—Excess-flow valves in which the flow-energy of the flowing medium actuates the closing mechanism
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/01—Control of flow without auxiliary power
- G05D7/0126—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs
- G05D7/0133—Control of flow without auxiliary power the sensing element being a piston or plunger associated with one or more springs within the flow-path
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses a kind of current limiters, including shell, end cap and slide bar；There is the first pipelined channel in the slide bar, there is the second pipelined channel in the installation through-hole；There is the first water inlet and the second water inlet on the end cap；The slide bar has first position and the second position in the installation through-hole；Wherein, when the slide bar is in the first position, first pipelined channel and second pipelined channel are respectively on state；When the slide bar is in the second position, first pipelined channel is in the conductive state, and second pipelined channel is in close state.Current limiter disclosed by the invention, when being in low hydraulic pressure situation, slide bar is in first position, and the first pipelined channel and the second pipelined channel are respectively on state at this time, increase water-outlet area, reaches better outlet effect；When being in high hydraulic pressure situation, slide bar is in the second position, and the second pipelined channel is closed, and ensure that current limitation effect.
Description
Technical field
The present invention relates to bathroom hot-water heating technical field more particularly to a kind of current limiters.
Background technique
Existing sanitaryware increases restrictor apparatus to meet the traffic requirement of national standard.
Current limiter currently on the market, current limitation effect is bad, and current limliting switching is not smooth.Existing current limiter is in low water
Also current limliting in the case where pressure, causes the customer experience in low hydraulic pressure bad.
Summary of the invention
The current limiter that the purpose of the present invention is to provide a kind of structures is simple, current limitation effect is good.
Technical solution of the present invention provides a kind of current limiter, including with installation through-hole shell, installation on the housing
End cap and the slide bar that is slidably mounted in the installation through-hole；
There is the first pipelined channel in the slide bar, there is the second pipelined channel in the installation through-hole；
Have on the end cap the first water inlet for being connected to first pipelined channel and with second pipelined channel
Second water inlet of connection；
The slide bar in the installation through-hole have first position and the second position, and can the second position with
It reciprocatingly slides between the first position；
Wherein, when the slide bar is in the first position, first pipelined channel and second pipelined channel
It is respectively on state；
When the slide bar is in the second position, first pipelined channel is in the conductive state, the second
Aquaporin is in close state.
Further, there is on the end of the end cover side sealing on the slide bar；
When the slide bar is in the second position, the sealing blocks second pipelined channel.
Further, second pipelined channel is formed between the inner surface of the shell and the slide bar；
Lug boss is extended with towards the slide bar side on the inner surface of the shell；
When the slide bar is in the second position, the sealing is contacted and is sealed with the lug boss, and described
Two pipelined channels are in close state；
When the slide bar is in the first position, the sealing leaves the lug boss and the bottom with the end cap
Face contact, second pipelined channel are in the conductive state.
Further, second pipelined channel includes that upper channel and the lower part that can be connected to the upper channel are logical
Road；
The upper channel is between the end cap and the lug boss；
When the slide bar is in the first position, the upper channel is connected to the lower passage；
When the slide bar is in the second position, the lower passage is in close state, the upper channel with
The first pipelined channel connection.
Further, the inner surface side of the sealing towards the shell extends, and is arranged on the sealing
It is fluted；
It is provided in the groove for the sealing rubber ring in sealing contact with the lug boss.
Further, position is provided with support tube in the mounting through hole in the shell；
It is provided between the support tube and the slide bar for driving the slide bar from the second position to described
The mobile elastic drive part in first position；
When the slide bar is in the first position, the slide bar is located at the support far from the end of the end cover side
In cylinder；
When the slide bar is in the second position, the end of the slide bar is protruding in the outer of the support tube
Side.
Further, the elastic drive part is spring or elastic piece.
Further, the slide bar extension being laterally extended is provided on the slide bar；
The slide bar extension holding is contacted with the inner surface of the shell, and can be relative to the inner surface of the shell
Sliding.
Further, the slide bar is provided with multiple slide bar extensions；
Multiple slide bar extension being arranged circumferentially along the slide bar.
Further, the shell is cylindrical sleeve；
The slide bar and the sleeve are coaxially arranged；First pipelined channel is located on the central axes of the sleeve, institute
State the surrounding that the second pipelined channel is looped around the slide bar；
First water inlet is located on the central axes of the sleeve, positioned at first water inlet on the end cap
Surrounding is disposed with multiple second water inlets.
By adopting the above technical scheme, it has the following beneficial effects:
Current limiter provided by the invention, when being in low hydraulic pressure situation, slide bar is in initial position, that is to say in first
Position, the first pipelined channel and the second pipelined channel are respectively on state at this time, not to water flow current limliting, increase out the water surface
Product, reaches better outlet effect；When being in high hydraulic pressure situation, slide bar is in the second position, at this point, only the first flowing water is logical
Road conducting, the second pipelined channel are closed, and ensure that current limitation effect.
Detailed description of the invention
Fig. 1 is the perspective view for the current limiter that one embodiment of the invention provides；
Fig. 2 is the explosive view of current limiter shown in FIG. 1；
Fig. 3 is the cross-sectional view of shell shown in Fig. 2；
Fig. 4 is the cross-sectional view of slide bar shown in Fig. 2；
When Fig. 5 is that slide bar is in first position, when the first pipelined channel and the second pipelined channel are respectively on state
Schematic diagram；
When Fig. 6 is that slide bar is in the second position, the first pipelined channel is in the conductive state, and the second pipelined channel, which is in, closes
Schematic diagram when state.
Specific embodiment
Further illustrate a specific embodiment of the invention with reference to the accompanying drawing.Wherein identical components are with identical
Appended drawing reference indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down"
Refer to that the direction in attached drawing, word "inner" and "outside" refer respectively to the direction towards or away from geometric center of specific component.
As shown in figures 1 to 6, the current limiter that one embodiment of the invention provides, including the shell 1 with installation through-hole 11, installation
In the end cap 2 on shell 1 and the slide bar 3 being slidably mounted in installation through-hole 11.
There is the first pipelined channel 30 in slide bar 3, there is the second pipelined channel 10 in installation through-hole 11.
There is the first water inlet 21 for being connected to the first pipelined channel 30 on end cap 2 and be connected to the second pipelined channel 10
Second water inlet 22.
Slide bar 3 has first position A and second position B in installation through-hole 11, and can be in second position B and first
It sets and reciprocatingly slides between A.
Wherein, when slide bar 3 is in first position A, the first pipelined channel 30 and the second pipelined channel 10 are respectively at and lead
Logical state.When slide bar 3 is in second position B, the first pipelined channel 30 is in the conductive state, and the second pipelined channel 10, which is in, to close
Closed state.
It that is to say, which is mainly made of shell 1, end cap 2 and slide bar 3.Shell 1 has installation through-hole 11, is pacifying
Filling has the second pipelined channel 10 in through-hole 11.There is the first pipelined channel 30 in slide bar 3.Wherein at first pipelined channel 30
In normally open, the second pipelined channel 10 is in close state in particular state, is on shape in another particular state
State.
End cap 2 is mounted on shell 1, is buckled on the end of installation through-hole 11.End cap 2 has the first water inlet 21, with
The connection of first pipelined channel 30.Also there is the second water inlet 22 on end cap 2, be connected to the second pipelined channel 10.
Slide bar 3 is mounted in installation through-hole 11, can be slided in installation through-hole 11, referred to as slide bar 3 is slidably pacified
In installation through-hole 11.
Slide bar 3 has a first position A in installation through-hole 11, also referred to as initial position, acting on slide bar 3 at this time
Hydraulic pressure be the first hydraulic pressure.
When slide bar 3 is in first position A, the first pipelined channel 30 and the second pipelined channel 10 are respectively at conducting shape
State does not increase water-outlet area to water flow current limliting at this time, and the first pipelined channel 30 and the second pipelined channel 10 are discharged simultaneously,
It can achieve better outlet effect under low hydraulic pressure.
Slide bar 3 has second position B in installation through-hole 11, and the hydraulic pressure acted on slide bar 3 at this time is the second hydraulic pressure,
Wherein the second hydraulic pressure is greater than the first hydraulic pressure.
When the hydraulic pressure acted on slide bar 3 is greater than the first hydraulic pressure, slide bar 3 is slided from first position A to second position B,
Until being moved to second position B.
When slide bar 3 is in second position B, the first pipelined channel 30 keeps in the conductive state, the second pipelined channel 10
It is in close state, only the first pipelined channel 30 is discharged at this time, and the second pipelined channel 10 is not discharged, ensure that in high hydraulic pressure feelings
Current limitation effect under shape.
When the hydraulic pressure acted on slide bar 3 is lower than the second hydraulic pressure, slide bar 3 initially moves off the second position under external force
B, until being moved to first position A.
Slide bar 3 can turn between first position A and second position B automatically according to the size for acting on hydraulic pressure on slide bar 3
It changes.
Can of course be mobile from second position B to first position A by setting actuator driving slider 3, it is opened by control
Close the switch of control actuator.
Preferably, as shown in figures 2-6, there is on the end of 2 side of proximal cover sealing 31 on slide bar 3.It is in slide bar 3
When the B of the second position, sealing 31 blocks the second pipelined channel 10.When slide bar 3 is in first position A, sealing 31 is no longer
Block the second pipelined channel 10, the conducting of the second pipelined channel 10.The on-off of the second pipelined channel 10 is controlled by sealing 31,
It may be implemented to be automatically controlled according to hydraulic pressure.
Preferably, as shown in figures 2-6, the second pipelined channel 10 is formed between the inner surface of shell 1 and slide bar 3.In shell
Lug boss 12 is extended with towards 3 side of slide bar on the inner surface of body 1.
When slide bar 3 is in second position B, sealing 31 is contacted and is sealed with lug boss 12, at the second pipelined channel 10
In closed state.
When slide bar 3 is in first position A, sealing 31 leaves lug boss 12 and contacts with the bottom surface of end cap 2, second
Aquaporin 10 is in the conductive state.
By the way that lug boss 12 is arranged, extend towards 3 side of slide bar, the inner surface side protrusion of sealing 31 towards shell 1 is prolonged
It stretches, facilitate sealing 31 and lug boss 12 in sealing contact and separates, thus the on-off of the second pipelined channel 10 of control.
Preferably, as shown in figures 2-6, the second pipelined channel 10 includes upper channel 101 and can connect with upper channel 101
Logical lower passage 102.Upper channel 101 is between end cap 2 and lug boss 12.
When slide bar 3 is in first position A, upper channel 101 is connected to lower passage 102.
When slide bar 3 is in second position B, lower passage 102 is in close state, upper channel 101 and the first flowing water
Channel 30 is connected to.
Lower passage 102 is located at the lower section of lug boss 12, far from the end of 2 side of end cap on lug boss 12 and shell 1
Between portion.Second pipelined channel 10 is located in installation through-hole 11, and one end is connected to the second water inlet 22 of end cap 2, another
End is water outlet.
Second pipelined channel 10 is mainly made of upper channel 101 and lower passage 102, in upper channel 101 and lower part
There is lug boss 12 between channel 102.When slide bar 3 is in first position A, sealing 31 leaves lug boss 12, at this time lower part
Channel 102 is connected to upper channel 101, so that the second pipelined channel 10 is in the conductive state.At this point, the second pipelined channel
10 is whole between the inner surface and slide bar 3 of shell 1.
When slide bar 3 is in second position B, slide bar 3 is mobile to the second position side B, and sealing 31 is contacted with lug boss 12
And it seals.At this point, lower passage 102 is closed, upper channel 101 is connected to the first pipelined channel 30.
At this point, the water flowed into from the first water inlet 21 and the second water inlet 22 is all discharged through the first pipelined channel 30, first
Pipelined channel 30 plays metering function.
Preferably, as shown in figures 2-6, the inner surface side of sealing 31 towards shell 1 extends, it is provided on sealing 31
Groove 311.It is provided in groove 311 for the sealing rubber ring 33 in sealing contact with lug boss 12.By sealing 31 towards shell
The inner surface side of body 1 extends, convenient to contact sealing with lug boss 12.To the periphery of the inner surface of shell 1 on sealing 31
Groove 311 is set on face, sealing rubber ring 33 is set in the groove 311 of the annular, can be improved when being contacted with lug boss 12
Sealing performance.
Preferably, as shown in figures 2-6, being located in installation through-hole 11 be provided with support tube 13 within the case 1.
It is provided between support tube 13 and slide bar 3 mobile from second position B to first position A for driving slider 3
Elastic drive part 4.When slide bar 3 is in first position A, slide bar 3 is located in support tube 13 far from the end of 2 side of end cap.In cunning
When bar 3 is in second position B, the protruding outside in support tube 13 in the end of slide bar 3.
Support tube 13 is mounted in installation through-hole 11, is connected with shell 1, and elastic drive part 4 and slide bar 3 are used to support.
Elastic drive part 4 is connected between support tube 13 and slide bar 3, is used for driving slider 3 from second position B to first
Position A is mobile.
When initial position, slide bar 3 is in first position A under the action of elastic drive part 4, at this time sealing 31 and end cap
2 bottom surface contact, the end of slide bar 3 are located in support tube 13, and the second pipelined channel 10 is in the conductive state.
Hydraulic pressure on slide bar 3 gradually overcomes elastic drive part 4 when the hydraulic pressure specifically acted on sealing 31 increases
Elastic force, slide bar 3 is mobile towards second position B, until sealing 31 contacts sealing with lug boss 12, the end of slide bar 3 is outside
The outside of support tube 13 is stretched out in, the second pipelined channel 10 is in close state.It is led in this way, support tube 13 also has slide bar 3
To effect.
Preferably, elastic drive part 4 is spring or elastic piece, facilitates materials and installation.
Preferably, as Figure 2-3, the slide bar extension 32 being laterally extended is provided on slide bar 3.
The holding of slide bar extension 32 is contacted with the inner surface of shell 1, and can be slided relative to the inner surface of shell 1, is risen
To the effect for keeping slide bar 3 to move linearly, slide bar 3 is avoided to tilt in installation through-hole 11.Slide bar extension 32 can be relative to
The inner surface of shell 1 slides, and slide bar 3 is allow to move up and down and rotate in installation through-hole 11.
Preferably, slide bar extension 32 is arranged on sealing 31, avoids interference with and influence sealing 31 and lug boss 12
Sealing.
Preferably, as Figure 2-3, being provided with multiple slide bar extensions 32 in slide bar 3.Multiple slide bar extensions 32 along
Slide bar 3 is arranged circumferentially, and is improved and is kept effect to slide bar 3.
Preferably, as shown in figures 1 to 6, shell 1 is cylindrical sleeve.
Slide bar 3 and sleeve are coaxially arranged.First pipelined channel 30 is located on the central axes of sleeve, 10 ring of the second pipelined channel
It is wound on the surrounding of slide bar 3.First water inlet 21 is located on the central axes of sleeve, and the four of the first water inlet 21 is located on end cap 2
It is disposed with multiple second water inlets 22 week.
So set, product structure is facilitated to arrange and quickly circulate conducive to water flow.
As needed, above-mentioned each technical solution can be combined, to reach best-of-breed technology effect.
Above-described is only the principle of the present invention and preferred embodiment.It should be pointed out that for the common skill of this field
For art personnel, on the basis of the principle of the invention, several other modifications can also be made, also should be regarded as protection model of the invention
It encloses.
Claims (10)
1. a kind of current limiter, which is characterized in that including shell, installation end cap on the housing and cunning with installation through-hole
The slide bar being mounted in the installation through-hole dynamicly；
There is the first pipelined channel in the slide bar, there is the second pipelined channel in the installation through-hole；
There is the first water inlet being connected to first pipelined channel on the end cap and be connected to second pipelined channel
The second water inlet；
The slide bar in the installation through-hole have first position and the second position, and can the second position with it is described
It reciprocatingly slides between first position；
Wherein, when the slide bar is in the first position, first pipelined channel and second pipelined channel difference
It is in the conductive state；
When the slide bar is in the second position, first pipelined channel is in the conductive state, and second flowing water is logical
Road is in close state.
2. current limiter according to claim 1, which is characterized in that have on the end of the end cover side on the slide bar
There is sealing；
When the slide bar is in the second position, the sealing blocks second pipelined channel.
3. current limiter according to claim 2, which is characterized in that second pipelined channel is formed in the interior of the shell
Between surface and the slide bar；
Lug boss is extended with towards the slide bar side on the inner surface of the shell；
When the slide bar is in the second position, the sealing is contacted and is sealed with the lug boss, the second
Aquaporin is in close state；
When the slide bar is in the first position, the sealing leaves the lug boss and connects with the bottom surface of the end cap
Touching, second pipelined channel are in the conductive state.
4. current limiter according to claim 3, which is characterized in that second pipelined channel includes upper channel and can
The lower passage being connected to the upper channel；
The upper channel is between the end cap and the lug boss；
When the slide bar is in the first position, the upper channel is connected to the lower passage；
When the slide bar is in the second position, the lower passage is in close state, the upper channel with it is described
The connection of first pipelined channel.
5. current limiter according to claim 3, which is characterized in that the inner surface of the sealing towards the shell
Side extends, and is arranged on the sealing fluted；
It is provided in the groove for the sealing rubber ring in sealing contact with the lug boss.
6. current limiter according to any one of claims 1-5, which is characterized in that be located at the installation in the shell
Support tube is provided in through-hole；
It is provided between the support tube and the slide bar for driving the slide bar from the second position to described first
The mobile elastic drive part in position；
When the slide bar is in the first position, the slide bar is located at the support tube far from the end of the end cover side
It is interior；
When the slide bar is in the second position, the protruding outside in the support tube in the end of the slide bar.
7. current limiter according to claim 6, which is characterized in that the elastic drive part is spring or elastic piece.
8. current limiter according to claim 1, which is characterized in that be provided with the slide bar being laterally extended on the slide bar and prolong
Extending portion；
The slide bar extension holding is contacted with the inner surface of the shell, and can be sliding relative to the inner surface of the shell
It is dynamic.
9. current limiter according to claim 8, which is characterized in that the slide bar is provided with multiple slide bars and extends
Portion；
Multiple slide bar extension being arranged circumferentially along the slide bar.
10. current limiter according to claim 1, which is characterized in that the shell is cylindrical sleeve；
The slide bar and the sleeve are coaxially arranged；First pipelined channel is located on the central axes of the sleeve, and described
Two pipelined channels are looped around the surrounding of the slide bar；
First water inlet is located on the central axes of the sleeve, and the surrounding of first water inlet is located on the end cap
It is disposed with multiple second water inlets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810960354.9A CN109058541B (en) | 2018-08-22 | Flow restrictor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810960354.9A CN109058541B (en) | 2018-08-22 | Flow restrictor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109058541A true CN109058541A (en) | 2018-12-21 |
| CN109058541B CN109058541B (en) | 2024-08-02 |
Family
ID=
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4116511A1 (en) * | 2021-07-09 | 2023-01-11 | Geberit International AG | Filling valve |
| US20230086974A1 (en) * | 2022-09-27 | 2023-03-23 | Purity (Xiamen) Sanitary Ware Co., Ltd | Microbubble generation container and water discharging device |
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| CN201973313U (en) * | 2011-01-20 | 2011-09-14 | 泉州科发卫浴有限公司 | Waterway flow limiter |
| CN102395934A (en) * | 2009-02-17 | 2012-03-28 | 护理联合2200公司 | Gas flow regulating device |
| US20150285394A1 (en) * | 2014-04-08 | 2015-10-08 | Kyosan Denki Co., Ltd. | Fuel vapor control device |
| CN205745490U (en) * | 2016-07-13 | 2016-11-30 | 艾欧史密斯(中国)热水器有限公司 | Air relief valve |
| CN205896197U (en) * | 2016-07-08 | 2017-01-18 | 北京科勒有限公司 | Switch valve |
| CN108339315A (en) * | 2018-04-09 | 2018-07-31 | 东莞市倍益清环保科技有限公司 | A kind of bathing water purifier of changeable water-out manners |
| CN208816765U (en) * | 2018-08-22 | 2019-05-03 | 北京科勒有限公司 | A kind of current limiter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102395934A (en) * | 2009-02-17 | 2012-03-28 | 护理联合2200公司 | Gas flow regulating device |
| CN201973313U (en) * | 2011-01-20 | 2011-09-14 | 泉州科发卫浴有限公司 | Waterway flow limiter |
| US20150285394A1 (en) * | 2014-04-08 | 2015-10-08 | Kyosan Denki Co., Ltd. | Fuel vapor control device |
| CN205896197U (en) * | 2016-07-08 | 2017-01-18 | 北京科勒有限公司 | Switch valve |
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| CN108339315A (en) * | 2018-04-09 | 2018-07-31 | 东莞市倍益清环保科技有限公司 | A kind of bathing water purifier of changeable water-out manners |
| CN208816765U (en) * | 2018-08-22 | 2019-05-03 | 北京科勒有限公司 | A kind of current limiter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4116511A1 (en) * | 2021-07-09 | 2023-01-11 | Geberit International AG | Filling valve |
| US20230086974A1 (en) * | 2022-09-27 | 2023-03-23 | Purity (Xiamen) Sanitary Ware Co., Ltd | Microbubble generation container and water discharging device |
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