CN2783280Y - Bathtub level switch and massage bathtub - Google Patents
Bathtub level switch and massage bathtub Download PDFInfo
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- CN2783280Y CN2783280Y CN 200520055470 CN200520055470U CN2783280Y CN 2783280 Y CN2783280 Y CN 2783280Y CN 200520055470 CN200520055470 CN 200520055470 CN 200520055470 U CN200520055470 U CN 200520055470U CN 2783280 Y CN2783280 Y CN 2783280Y
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Abstract
The utility model relates to a massage bathtub which comprises a bathtub body, a bathtub water inlet connected with a joint, a water valve and an air valve which are connected with the joint, a first electromagnetic valve for controlling the opening or the closing of the water valve, a second electromagnetic valve for controlling the opening or the closing of the air valve, an electric controller for controlling the opening or the closing of the first electromagnetic valve and the second electromagnetic valve, and a liquid level switch for transmitting the water in-position signals to the electric controller, wherein the level switch comprises a metal electrode, a signal circuit electrically connected to the metal electrode, and a power source electrically connected to the signal circuit; a signal output wire in the signal circuit is connected with the controller outside the signal circuit; the metal electrode is installed at an appropriate position of the insulating external wall of one side of the bathtub; a metal conductor is also installed at an appropriate position of the wall of the bathtub; one end of the metal conductor is connected to the ground, and the other end of the metal conductor is exposed out of the inner wall of the bathtub; the metal electrode and the water in the bathtub form a capacitor in the signal circuit. The utility model has the advantages of simple structure of the liquid level switch, easy installation, safe use and low cost.
Description
Technical field:
The utility model relates to a kind of bathtub electronic switching device and message bathtub, and particularly relating to a kind of needs the single metal electrode, can respond to induction type liquid level switch that little capacitance variations and electrode directly do not contact with liquid and the message bathtub that has this level switch.
Background technology
Various common bathtubs and message bathtub have become universal product at present, and enter the family of ordinary people.Related product in the market is no matter be that common bathtub or message bathtub adopt the few of Automatic Control mode.Particularly adding aspect the water management, though some product has adopted the certain method sensed water level whether to reach predetermined value, but general employing is mechanical detection mode, as float-ball type switch by ball float control travel switch, the shortcoming of this switch is that volume of switch is big, complex structure, the manufacturing cost height is installed inconvenient; In addition since often the use meeting produce malfunction because of the influence of impurity etc. or be failure to actuate, so functional reliability is poor, thereby influenced result of use; Also has very difficult its application that limited with combining based on automatically controlled electric controller.Though the another kind of electrode that uses the direct contact liq of electrode to come the exploring electrode contact liq to change and potential change is reached open or close touches liquid formula switch, but this switch is because electrode directly contacts energising to liquid, after long-term the use, easy oxidation of electrode surface or corrosion and damage, perhaps deposit dirt easily and cause switch sensitivity to descend, it is unreliable to work, as using on bathtub, electric leakage is dangerous easily.Though also have a kind of level switch directly not contact with liquid, be to add insulation course at two metal electrodes, place liquid to form electric capacity at two electrodes then, though this level switch does not directly contact with liquid, but use inconvenience is installed on bathtub, because metal electrode must all be installed on the inner and outer wall of bathtub, electric leakage is used dangerous easily.
Existing message bathtub, massage functions is all realized with water pump cooperative mechanical formula manually-operated gate, this need be according to different massage positions, as back, foot etc., mechanical type valve in a plurality of manual controls of mounted on surface of bathtub, when using the massage functions of a part, need the corresponding machinery valve of twisting to reach the massage effect of water flow jet.Such mode one has increased bathtub production, mounting hardness and cost, and two under the situation about increasing of massage position, causes obscuring that the user uses easily, and three are difficult to change the switching frequencies of valves to reach the effect of water flow jet massage frequency shift.
Summary of the invention
Fundamental purpose of the present utility model is to provide a kind of and can be completely achieved Level Detection, compact conformation, volume is small and exquisite, cost is low, easy for installation, electrode surface is difficult for that the burn into switch is highly sensitive, reliable operation, directly contact liq, avoid the bathtub inside surface install the mechanical type liquid level detection device, can with the level switch of the only need single metal electrode that combines based on automatically controlled electric controller.
Second purpose of the present utility model be to provide a kind of have can be completely achieved Level Detection, compact conformation, volume is small and exquisite, cost is low, easy for installation, electrode surface is difficult for that the burn into switch is highly sensitive, reliable operation, directly contact liq, avoid bathtub mounted on surface machinery formula liquid level detection device, can with the message bathtub of the level switch of the only need single metal electrode that combines based on automatically controlled electric controller.
The 3rd purpose of the present utility model is to provide a kind of water valve and air valve structure is simple, cost is low, installation is easy, control is easy, can control the message bathtub of each gas outlet of each water delivering orifice of water valve and air valve separately.
A kind of bathtub level switch comprises a metal electrode, the signal circuit that is electrically connected with metal electrode, and signal circuit is electrically connected with the power supply of outside, and the output line in the signal circuit is connected with the electric controller of outside; Metal electrode is installed on the appropriate location of insulation outer wall of bathtub one side, also is provided with metallic conductor in the appropriate location of bathtub wall, and an end of metallic conductor is connected with ground, and the other end of metallic conductor exposes bathtub inner wall, and metallic conductor directly contacts with water; When filling a certain amount of water in bathtub, the water in metal electrode and the bathtub forms the electric capacity in the signal circuit.Needs according to Level Detection, the metal electrode of level switch is installed in the gap position that is lower than bathtub slightly, directly contacts with the insulation outer wall of cylinder body, when liquid level rises to the setting value of level switch, liquid in metal electrode and the bathtub forms an electric capacity, convert a switching signal to by signal circuit, level switch is exported this switching signal and is given electric controller, and electric controller is after receiving switching signal, close liquid flowing valve immediately, to stop to add liquid.According to the electric capacity theory, the electric capacity that forms between metal electrode and the liquid and and air between the electric capacity that forms be different, we utilize this principle design by the level switch of design.This level switch, need not be immersed in the liquid, do not need directly to contact with liquid yet, and under the situation of the little capacitance variations of induction, can show the good signal characteristic, can be completely achieved Level Detection, have compact conformation, volume is small and exquisite, cost is low, easy for installation, electrode surface is difficult for that the burn into switch is highly sensitive, the advantage of reliable operation; Particularly only use a metal electrode, install easily, be not easy electric leakage, safe in utilization.
As improvement of the present utility model, metal electrode is a sheet metal, often adopts the metal copper sheet, and is simple in structure, is easily mounted on the insulation outer wall of holding liquid device, and position easy and that the maintenance of second electrode is determined.
As improvement of the present utility model, signal circuit comprises conversion of signals amplifying circuit, rectification circuit, filtering circuit, power supply input circuit, also comprises the trigger that produces high-frequency oscillation signal in signal circuit; The conversion of signals amplifying circuit is electrically connected with rectification circuit, rectification circuit is electrically connected with filtering circuit, filtering circuit is electrically connected with power supply input circuit, power supply input circuit is connected with the power supply of outside, metal electrode is connected between conversion of signals amplifying circuit and the rectification circuit, thereby makes the electric capacity that forms between the water in metal electrode and bathtub convert a stable switching signal to.Though copper sheet and air and and water between the electric capacity that forms be different, but because their capacitance is all very little, from several methods to tens method, therefore the difference that how to detect this capacitance is the key of design level switch, is difficult to detect so small electric capacity according to general circuit methods.According to the high-frequency signal theory, under the very high situation of frequency, less capacitance variations value all can show good switching characteristic, so we use Schmidt trigger to produce high-frequency oscillation signal, as the input signal of little electric capacity, this method is respond well after tested.
As improvement of the present utility model, between conversion of signals amplifying circuit and rectification circuit, be connected with adjustable resistance, between rectification circuit and filtering circuit, be connected with the circuit of light emitting diode and driving led lighting.When the changes such as wall thickness of bathtub, the electric capacity between the liquid in metal electrode and the bathtub can be influenced, thereby the power of switching signal can be influenced, adjustable resistance can make and still form a stable switching signal when the changes such as wall thickness of bathtub; When the water in bathtub put in place, light emitting diode can be luminous.
As improvement of the present utility model, the conversion of signals amplifying circuit comprises resistance R 2, transistor D3, the resistance R 1 of polyphone, resistance R 2, transistor D3 and resistance R 1 form the closed-loop path, be parallel with trigger U3A at the two ends of resistance R 2, two ends in transistor D3 and resistance R 1 are parallel with trigger U3B, realize electric capacity/frequency inverted, frequency/voltage conversion.
Realize a kind of message bathtub of the present utility model, comprise cylinder body, be installed in the bathtub water inlet of cylinder body appropriate location, the joint that is connected with the bathtub water inlet, the water valve that is connected with joint; Also comprise the air valve that is connected with joint; First solenoid valve that the control water valve opens or closes, second solenoid valve that the control air valve opens or closes, control the electric controller that first solenoid valve and second solenoid valve open or close, to put in place the level switch of signal of electric controller transmission water, first solenoid valve and second solenoid valve are electrically connected with electric controller, electric controller is electrically connected with level switch, level switch comprises a metal electrode, the signal circuit that is electrically connected with metal electrode, the power supply that is electrically connected with signal circuit, and the output line in the signal circuit is connected with controller outside; Metal electrode is installed on the appropriate location of insulation outer wall of bathtub one side, also is provided with metallic conductor in the appropriate location of bathtub wall, and an end of metallic conductor is connected with ground, and the other end of metallic conductor exposes bathtub inner wall, and metallic conductor can directly contact with water; When filling a certain amount of water in bathtub, the water in metal electrode and the bathtub forms the electric capacity in the signal circuit.
As improvement of the present utility model, signal circuit comprises conversion of signals amplifying circuit, rectification circuit, filtering circuit, power supply input circuit, also comprises the trigger that produces high-frequency oscillation signal in signal circuit; The conversion of signals amplifying circuit is electrically connected with rectification circuit, rectification circuit is electrically connected with filtering circuit, filtering circuit is electrically connected with power supply input circuit, power supply input circuit is connected with the power supply of outside, metal electrode is connected between conversion of signals amplifying circuit and the rectification circuit, thereby makes the electric capacity that forms between the water in metal electrode and bathtub convert a stable switching signal to.
As improvement of the present utility model, the conversion of signals amplifying circuit comprises resistance R 2, transistor D3, the resistance R 1 of polyphone, resistance R 2, transistor D3 and resistance R 1 form the closed-loop path, be parallel with trigger U3A at the two ends of resistance R 2, be parallel with trigger U3B at the two ends of transistor D3 and resistance R 1.
As improvement of the present utility model, water valve comprises the water valve body, on the water valve body, be provided with a water valve water inlet, on the water valve body, also be provided with two or more water valve water delivering orifices as required, the water valve water delivering orifice links to each other with the bathtub water inlet by joint, all is equipped with on each water valve water delivering orifice position water valve body and can controls first solenoid valve that each water valve water delivering orifice opens or closes separately; Air valve comprises the air valve body, on the air valve body, be provided with an air intake opening, on the air valve body, also be provided with two or more air valves gas outlet as required, the air valve gas outlet links to each other with the bathtub water inlet by joint, all be equipped with on each position, air valve gas outlet air valve body and can control second solenoid valve that each air valve gas outlet opens or closes separately, the position relative with air intake opening also is provided with one and recycles gas port on the air valve body.The water valve of bathtub and air valve are the one-piece construction that into has more, the water valve water delivering orifice of water valve can be controlled separately by solenoid valve, the air valve gas outlet of air valve can be controlled separately by solenoid valve, simple in structure, install easily, and when changing the switching frequency of valve, can reach the effect of water flow jet massage frequency shift, enriched the combination of massage effect, can also reach the massage effect of different dynamics by control to discharge.
As improvement of the present utility model, on the water valve body, also be provided with a freeing port, and be connected with electric control valve and water pump with water valve water inlet relative position, be beneficial to ponding in the water valve and sewage are drained only.
Level switch of the present utility model has the Level Detection of can be completely achieved, compact conformation, volume is small and exquisite, cost is low, easy for installation, electrode surface is difficult for that the burn into switch is highly sensitive, reliable operation, directly contact liq, avoid bathtub mounted on surface machinery formula liquid level detection device, can with the level switch that combines based on automatically controlled electric controller, reduce the advantage of bathtub production and mounting hardness and cost greatly.
Message bathtub of the present utility model have level switch simple in structure, installation is easy, safe in utilization, cost is low, water valve and air valve simple in structure, install easily, massage effect is good, control is convenient, cost is low advantage.
Description of drawings
Fig. 1 is the structural representation of level switch of the present utility model.
Fig. 2 is the process flow diagram of the utility model level switch signal circuit.
Fig. 3 is the utility model level switch signal circuit diagram.
Fig. 4 is a bathtub structure synoptic diagram of the present utility model.
Fig. 5 is that the utility model water valve structure master looks synoptic diagram.
Fig. 6 is the cut-open view of Fig. 5 along the A-A cutting line.
Fig. 7 is that the water valve of Fig. 5 is installed behind first solenoid valve cut-open view along the A-A cutting line.
Fig. 8 is that the utility model air valve structure master looks synoptic diagram.
Fig. 9 is the cut-open view of Fig. 5 along the B-B tangent line.
Figure 10 is that the air valve of Fig. 7 is installed behind second solenoid valve cut-open view along the C-C cutting line.
Embodiment
As shown in Figure 1, a kind of bathtub level switch 5 comprises a metal electrode 1, the signal circuit that is electrically connected with metal electrode 1, signal circuit places on the circuit board 2, the power supply (not shown) that is electrically connected with signal circuit, and the output line in the signal circuit is connected with the controller outside (not shown); As shown in Figure 4, the metal electrode of bathtub level switch 5 is installed on the insulation outer wall of gap 7 position bathtubs one side that is lower than bathtub slightly, appropriate location at bathtub wall also is provided with freeing port 6, freeing port 6 is a metallic conductor, one end of freeing port 6 is connected with ground, and the other end of freeing port 6 exposes bathtub inner wall; When filling water in bathtub, freeing port 6 directly contacts with water, and when liquid level rose to the setting value of level switch, the water in metal electrode and the bathtub formed the electric capacity in the signal circuit, exported the signal that water puts in place by signal amplification circuit to electric controller.
As shown in Figure 2, signal circuit comprises adjustable resistance 35, conversion of signals amplifying circuit 30, rectification circuit 31, drives circuit 32, filtering circuit 33, the power supply input circuit 34 of led lighting, also comprises the trigger that produces high-frequency oscillation signal in signal circuit; Conversion of signals amplifying circuit 30 is electrically connected with rectification circuit 31 by adjustable resistance,, rectification circuit 31 is electrically connected with the circuit 32 that drives led lighting, the circuit 32 that drives led lighting is electrically connected with filtering circuit 33, filtering circuit 33 is electrically connected with power supply input circuit 34, power supply input circuit 34 is connected with the power supply of outside, and metal electrode 1 is connected on the rectification circuit 31.
As shown in Figure 3, conversion of signals amplifying circuit 30 comprises resistance R 2, transistor D3, the resistance R 1 of polyphone, resistance R 2, transistor D3 and resistance R 1 form the closed-loop path, be parallel with trigger U3A at the two ends of resistance R 2, two ends in transistor D3 and resistance R 1 are parallel with trigger U3B, and common connection end of resistance R 2 and trigger U3A is connected with adjustable resistance R5.Rectification circuit 31 comprises resistance R 3, trigger U1D, the diode D1 of polyphone, and resistance R 3 is connected with adjustable resistance R5, is connected with the metal electrode of level switch between resistance R 3 and trigger U1D.The circuit of driven for emitting lights led lighting comprises the trigger U1E and the trigger U1F of serial connection, between trigger U1E and trigger U1F, be connected resistance R 7, LED 1 by polyphone, LED 1 is connected with ground, trigger U1E is connected in series with the diode D1 of rectification circuit 31, between the diode D1 of trigger U1E and rectification circuit 31, be connected by resistance R 6 resistance R 6 ground connection.Filtering circuit 33 comprises trigger U1C, diode D2, the resistance R 8 of serial connection, is connected by capacitor C 2 capacitor C 2 ground connection with 8 of resistance R at diode D2.Power supply input circuit 34 comprises triode Q1 and resistance R 9, and the pin of triode Q1 is connected with the resistance R 8 of filtering circuit 33, a pin ground connection, and a pin is connected with resistance R 9, and resistance R 9 is connected with power supply, and triode Q1 is connected with resistance R 8.
Embodiment 2
As shown in Figure 4, a kind of message bathtub, comprise cylinder body 10, be installed in the bathtub water inlet 11 of cylinder body 10 appropriate locations, the joint 12 that is connected with bathtub water inlet 11, the water valve 13 that is connected with joint 12, be installed in the first solenoid valve (not shown) of each water delivering orifice position of water valve 13, first solenoid valve is electrically connected with electric controller 18, and the first solenoid control water valve water inlet opens or closes, and is connected with water pump 8 between water valve water inlet and electric controller 18; On joint 12, also be connected with air valve 15, in the position, gas outlet of air valve 15 the second solenoid valve (not shown) is installed, the air intake opening of the second solenoid control air valve 15 opens or closes, and second solenoid valve is electrically connected with electric controller 18, is connected with air pump 9 between the air intake opening of air valve 15 and electric controller 18; Electric controller 18 control first solenoid valves and second solenoid valve open or close, and are connected with on the electric controller 18 to put in place the level switch 5 of signal of electric controller 18 transmission water.Also be connected with draining valve 27, freeing port 6, draining valve 28 on electric controller 18 in turn, draining valve 28 is connected on the electric controller 18.The structure of the level switch of the structure of level switch 5 and embodiment 1 is identical.
Extremely shown in Figure 7 as Fig. 4, water valve 13 comprises water valve body 19, on water valve body 19, be provided with a water valve water inlet 20, on water valve body 19, be provided with a freeing port 21 with water valve water inlet 20 relative positions, on water valve body 19 between water valve water inlet 20 and the freeing port 21, also be provided with 8 water valve water delivering orifices 40, water valve water delivering orifice 40 links to each other with bathtub water inlet 11 by joint 12, on 8 water valve water delivering orifices, 40 position water valve bodies 19, all be equipped with and control first solenoid valve 16 that each water valve water delivering orifice 40 opens or closes separately, first solenoid valve 16 is communicated with the hole of water valve water delivering orifice 40 by hole 41, and the big I of 8 water valve water delivering orifices 40 is designed to the water delivering orifice of different sizes according to the needs of discharge.
As Fig. 4, Fig. 8 is to shown in Figure 10, air valve 15 comprises air valve body 22, on air valve body 22, be provided with an air intake opening 23, on air valve body 22, also be provided with four air valve gas outlets 24 as required, air valve gas outlet 24 links to each other with bathtub water inlet 11 by joint 12, on the 24 position air valve bodies 22 of 4 air valve gas outlets, all be equipped with and control second solenoid valve 17 that each air valve gas outlet 24 opens or closes separately, second solenoid valve 17 is communicated with the hole of water valve water delivering orifice 40 by hole 42, on air valve body 22 position relative with air intake opening 23 also be provided with one by valve control recycle gas port 25, the big I of air valve gas outlet 24 is designed to the gas outlets of different sizes according to the needs of airshed.
Claims (10)
1, a kind of bathtub level switch is characterized in that: comprise a metal electrode, the signal circuit that is electrically connected with metal electrode, signal circuit is electrically connected with the power supply of outside, and the output line in the signal circuit is connected with controller outside; Metal electrode is installed on the appropriate location of insulation outer wall of bathtub one side, also is provided with metallic conductor in the appropriate location of bathtub wall, and an end of metallic conductor is connected with ground, and the other end of metallic conductor exposes bathtub inner wall, and metallic conductor can directly contact with water; When filling a certain amount of water in bathtub, the water in metal electrode and the bathtub forms the electric capacity in the signal circuit.
2, a kind of bathtub level switch as claimed in claim 1, it is characterized in that: described metal electrode is a sheet.
3, as claim 1 or the described a kind of bathtub level switch of 2 arbitrary claims, it is characterized in that: signal circuit comprises conversion of signals amplifying circuit, rectification circuit, filtering circuit, power supply input circuit, also comprises the trigger that produces high-frequency oscillation signal in signal circuit; The conversion of signals amplifying circuit is electrically connected with rectification circuit, rectification circuit is electrically connected with filtering circuit, filtering circuit is electrically connected with power supply input circuit, power supply input circuit is connected with the power supply of outside, and metal electrode is connected between conversion of signals amplifying circuit and the rectification circuit.
4, a kind of bathtub level switch as claimed in claim 3 is characterized in that: be connected with adjustable resistance between conversion of signals amplifying circuit and rectification circuit, be connected with the circuit of light emitting diode and driving led lighting between rectification circuit and filtering circuit.
5, a kind of bathtub level switch as claimed in claim 4, it is characterized in that: the conversion of signals amplifying circuit comprises resistance R 2, transistor D3, the resistance R 1 of polyphone, resistance R 2, transistor D3 and resistance R 1 form the closed-loop path, be parallel with trigger U3A at the two ends of resistance R 2, be parallel with trigger U3B at the two ends of transistor D3 and resistance R 1.
6, a kind of message bathtub comprises cylinder body, is installed in the bathtub water inlet of cylinder body appropriate location, the joint that is connected with the bathtub water inlet, the water valve that is connected with joint; Also comprise the air valve that is connected with joint; First solenoid valve that the control water valve opens or closes, second solenoid valve that the control air valve opens or closes, control the electric controller that first solenoid valve and second solenoid valve open or close, to put in place the level switch of signal of electric controller transmission water, first solenoid valve and second solenoid valve are electrically connected with electric controller, electric controller is electrically connected with level switch, it is characterized in that: described level switch comprises a metal electrode, the signal circuit that is electrically connected with metal electrode, the power supply that is electrically connected with signal circuit, and the output line in the signal circuit is connected with controller outside; Metal electrode is installed on the appropriate location of insulation outer wall of bathtub one side, also is provided with metallic conductor in the appropriate location of bathtub wall, and an end of metallic conductor is connected with ground, and the other end of metallic conductor exposes bathtub inner wall, and metallic conductor can directly contact with water; When filling a certain amount of water in bathtub, the water in metal electrode and the bathtub forms the electric capacity in the signal circuit.
7, a kind of message bathtub as claimed in claim 6, it is characterized in that: signal circuit comprises conversion of signals amplifying circuit, rectification circuit, filtering circuit, power supply input circuit, also comprises the trigger that produces high-frequency oscillation signal in signal circuit; The conversion of signals amplifying circuit is electrically connected with rectification circuit, rectification circuit is electrically connected with filtering circuit, filtering circuit is electrically connected with power supply input circuit, voltage input circuit is connected with the power supply of outside, and metal electrode is connected between conversion of signals amplifying circuit and the rectification circuit.
8, a kind of message bathtub as claimed in claim 7, it is characterized in that: the conversion of signals amplifying circuit comprises resistance R 2, transistor D3, the resistance R 1 of polyphone, resistance R 2, transistor D3 and resistance R 1 form the closed-loop path, be parallel with trigger U3A at the two ends of resistance R 2, be parallel with trigger U3B at the two ends of transistor D3 and resistance R 1.
9, as claim 6 or the described a kind of message bathtub of 8 arbitrary claims, it is characterized in that: water valve comprises the water valve body, on the water valve body, be provided with a water valve water inlet, on the water valve body, also be provided with two or more water valve water delivering orifices as required, the water valve water delivering orifice links to each other with the bathtub water inlet by joint, all is equipped with on each water valve water delivering orifice position water valve body and can controls first solenoid valve that each water valve water delivering orifice opens or closes separately; Air valve comprises the air valve body, on the air valve body, be provided with an air intake opening, on the air valve body, also be provided with two or more air valves gas outlet as required, the air valve gas outlet links to each other with the bathtub water inlet by joint, all be equipped with on each position, air valve gas outlet air valve body and can control second solenoid valve that each air valve gas outlet opens or closes separately, the position relative with air intake opening also is provided with one and recycles gas port on the air valve body.
10, a kind of message bathtub as claimed in claim 9 is characterized in that: also be provided with a freeing port with water valve water inlet relative position on the water valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520055470 CN2783280Y (en) | 2005-03-10 | 2005-03-10 | Bathtub level switch and massage bathtub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520055470 CN2783280Y (en) | 2005-03-10 | 2005-03-10 | Bathtub level switch and massage bathtub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2783280Y true CN2783280Y (en) | 2006-05-24 |
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ID=36768263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520055470 Expired - Fee Related CN2783280Y (en) | 2005-03-10 | 2005-03-10 | Bathtub level switch and massage bathtub |
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| Country | Link |
|---|---|
| CN (1) | CN2783280Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099987A (en) * | 2017-06-20 | 2018-12-28 | 高仪股份公司 | For monitoring the monitoring system and sanitary element of the water level in sanitary element |
-
2005
- 2005-03-10 CN CN 200520055470 patent/CN2783280Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109099987A (en) * | 2017-06-20 | 2018-12-28 | 高仪股份公司 | For monitoring the monitoring system and sanitary element of the water level in sanitary element |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060524 Termination date: 20100310 |