CN206785666U - A kind of anti-error suction supervising device of swimming pool - Google Patents
A kind of anti-error suction supervising device of swimming pool Download PDFInfo
- Publication number
- CN206785666U CN206785666U CN201720639492.8U CN201720639492U CN206785666U CN 206785666 U CN206785666 U CN 206785666U CN 201720639492 U CN201720639492 U CN 201720639492U CN 206785666 U CN206785666 U CN 206785666U
- Authority
- CN
- China
- Prior art keywords
- plc
- programmable controller
- sucking mouth
- water sucking
- range finder
- 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
Landscapes
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
A kind of anti-error suction supervising device of swimming pool, belongs to safety monitoring technology field.Including programmable controller main frame PLC CPU, programmable controller expansion module PLC EM, water sucking mouth left direction ultrasonic range finder TD1, to ultrasonic range finder TD2 immediately ahead of water sucking mouth, water sucking mouth right direction ultrasonic range finder TD3, flow instrument TF, frequency converter FC and draining pump M, programmable controller main frame PLC CPU connection programmable controller expansion module PLC EM and outside host computer PC, programmable controller expansion module PLC EM and water sucking mouth left direction ultrasonic range finder TD1, to ultrasonic range finder TD2 immediately ahead of water sucking mouth, water sucking mouth right direction ultrasonic range finder TD3 and frequency converter FC connection, frequency converter FC connection draining pumps M.The generation of security incident can be avoided inhaling by mistake, the personal safety of swimmer is effectively ensured.
Description
Technical field
The utility model belongs to safety monitoring technology field, and in particular to a kind of anti-error suction supervising device of swimming pool.
Background technology
Modern advocates healthy lifestyles, swims as the Leisure Sports not limited by an age, sex project,
Liked by more and more people.But while people carry out swimming body-building, also under cover many safety problems.Example
Such as, " swimming pool the inhales people " accident to happen occasionally in recent years, reason are:Water circulation system is installed, the system in swimming pool
Water sucking mouth is arranged in bottom of pond, bottom of pond water suction can produce very strong negative pressure, people easily is drawn into drainage pipeline, so as to cause to inhale peace by mistake
The generation of full accident.The life peace of swimmer as this potential safety hazard serious threat caused by the swimming-pool water circulatory system
Entirely, while also have a strong impact on swimming this move for body-building and leisure carry out in a deep going way.
In view of above-mentioned prior art, it is necessary to the draining link of the existing swimming-pool water circulatory system is improved, therefore,
The applicant has made beneficial design, and technical scheme described below is caused under this background.
The content of the invention
The purpose of this utility model is to provide a kind of swimming pool anti-error suction supervising device, can avoid inhaling security incident by mistake
Generation, the personal safety of swimmer is effectively ensured.
The purpose of this utility model is such to what is reached, a kind of anti-error suction supervising device of swimming pool, it is characterised in that:Bag
Include programmable controller main frame PLC-CPU, programmable controller expansion module PLC-EM, water sucking mouth left direction ultrasonic wave
To ultrasonic range finder TD2, water sucking mouth right direction ultrasonic range finder TD3, flow instrument immediately ahead of rangefinder TD1, water sucking mouth
TF, frequency converter FC and draining pump M, the extension of described programmable controller main frame PLC-CPU connections programmable controller
Module PLC-EM and outside host computer PC, described programmable controller expansion module PLC-EM surpass with water sucking mouth left direction
Sound-ranging equipment TD1, immediately ahead of water sucking mouth to ultrasonic range finder TD2, water sucking mouth right direction ultrasonic range finder TD3 and
Frequency converter FC connections, described frequency converter FC connection draining pumps M, described flow instrument TF connection programmable controller main frames
PLC-CPU, programmable controller main frame PLC-CPU, programmable controller expansion module PLC-EM, frequency converter FC, draining
Pump M and flow instrument TF forms closed loop configuration, for controlling the drain discharge AFV of swimming pool water sucking mouth, the blowdown stream of water sucking mouth
Amount AFV monitors to form drain discharge measured value TFV, drain discharge set-point SFV and drain discharge measurement by flow instrument TF
Deviation is formed after value TFV, programmable controller main frame PLC-CPU sends instruction according to the deviation to frequency converter FC, adjusts
Draining pump M rotating speed is saved, it is followed drain discharge set-point SFV;Water sucking mouth left direction ultrasonic range finder TD1, water suction
Swimmer's distance is monitored in real time to ultrasonic range finder TD2 and water sucking mouth right direction ultrasonic range finder TD3 immediately ahead of mouthful
The position data of water sucking mouth, and the position data is passed to by programmable by programmable controller expansion module PLC-EM
Controller main frame PLC-CPU, programmable controller main frame PLC-CPU determine drain discharge set-point according to minimum value therein
SFV, to reduce suction of the water sucking mouth to swimmer.
In a specific embodiment of the present utility model, described programmable controller main frame PLC-CPU and can
The CPU224XP modules and EM235 modules of Siemens Company, water sucking mouth is respectively adopted in programming sequence controller expansion module PLC-EM
To ultrasonic range finder TD2 and water sucking mouth right direction ultrasound immediately ahead of left direction ultrasonic range finder TD1, water sucking mouth
Distance meter TD3 is adopted using the ultrasonic sensor of the model SONIC-2 with 4~20mA current output signals, flow instrument TF
It is model FFT-0015 electromagnetic flowmeter, using Siemens's MM440 frequency converters, described compiles frequency converter FC
The cyclelog expansion module PLC-EM RA ends and A+ ends negative pole with water sucking mouth left direction ultrasonic range finder TD1 jointly
End connection, programmable controller expansion module PLC-EM A- ends are connected with the negative pole end of direct current 24V power supplys, direct current 24V electricity
The positive terminal in source is connected with water sucking mouth left direction ultrasonic range finder TD1 positive terminal, programmable controller expansion module
PLC-EM RB ends and B+ ends is connected with immediately ahead of water sucking mouth to ultrasonic range finder TD2 negative pole end jointly, programmable control
Device expansion module PLC-EM processed B- ends are connected with the negative pole end of direct current 24V power supplys, the positive terminal of direct current 24V power supplys and water sucking mouth
Front connects to ultrasonic range finder TD2 positive terminal, programmable controller expansion module PLC-EM RC ends and C+ ends
The negative pole end with water sucking mouth right direction ultrasonic range finder TD3 is connected jointly, programmable controller expansion module PLC-EM
C- ends be connected with the negative pole end of direct current 24V power supplys, the positive terminals of direct current 24V power supplys and water sucking mouth right direction ultrasonic ranging
Instrument TD3 positive terminal connection, programmable controller expansion module PLC-EM M0 ends connect with frequency converter FC Ain1+, GND pin
Connect, programmable controller expansion module PLC-EM V0 ends are connected with frequency converter FC Ain1- pin, Ain1+, Ain1-, GND
Pin is frequency converter FC control terminal, and frequency converter FC input L1, L2, L3 connect 380 volts of three phase mains, frequency converter FC output end
U, V, W run in water pump M, and programmable controller expansion module PLC-EM L+ ends are connected with the positive terminal of direct current 24V power supplys, can
Sequence controller expansion module PLC-EM M ends and the negative pole end common ground of direct current 24V power supplys are programmed, programmable controller expands
Exhibition module PLC-EM expansion connector DB is by extending connecting cable BUS and programmable controller main frame PLC-CPU expansion
Exhibition connector DB connects, and programmable controller main frame PLC-CPU RA ends and A+ ends connect with flow instrument TF negative pole end jointly
Connect, programmable controller main frame PLC-CPU A- ends are connected with the negative pole end of direct current 24V power supplys, the positive pole of direct current 24V power supplys
End is connected with flow instrument TF positive terminal, programmable controller main frame PLC-CPU L+ ends and the positive terminal of direct current 24V power supplys
Connection, programmable controller main frame PLC-CPU M ends and the negative pole end common ground of direct current 24V power supplys, program controller PLC
Device main frame PLC-CPU RS485 COM1s are connected by cable PC/PPI and the RS232C COM1s of host computer PC.
The utility model compared with prior art, has an advantageous effect in that as a result of said structure:In swimming pool
The top of water sucking mouth monitors people apart from water sucking mouth in real time according to three directions set ultrasonic range finder to the left, forward, to the right
Position data, programmable controller main frame determine the drain discharge of water sucking mouth according to minimum value therein, to reduce water sucking mouth
To the suction of human body, when the Monitoring Data of each ultrasonic range finder is in warning value, programmable controller main frame is by draining
Flow is adjusted to zero delivery, to avoid swimmer from being inhaled into discharge outlet;Overall structure advantages of simple, intelligence degree is high, monitoring
Accurately, it can avoid inhaling the generation of security incident by mistake, the personal safety of swimmer is effectively ensured.
Brief description of the drawings
Fig. 1 is electric theory diagram of the present utility model.
Fig. 2 is operation principle block diagram of the present utility model.
In figure:TD1. water sucking mouth left direction ultrasonic range finder;TD2. to ultrasonic range finder immediately ahead of water sucking mouth;
TD3. water sucking mouth right direction ultrasonic range finder;CEP. drain discharge set-point determining program;SFV. drain discharge set-point;
PID. drain discharge control program;FC. frequency converter;M. draining pump;AFV. the drain discharge of water sucking mouth;TF. flow instrument;TFV.
Drain discharge measured value;PLC-CPU. programmable controller main frame;PLC-EM. programmable controller expansion module;DB. expand
Open up connector;BUS. connecting cable is extended;PC. host computer;RS232C. the COM1 of host computer;PC/PPI. communication cable;
RS485. the COM1 of programmable controller main frame.
Embodiment
In order that the public can be fully understood by the technical essence of the utility model and beneficial effect, applicant will combine below
Accompanying drawing is described in detail by specific embodiment of the present utility model, but description of the applicant to embodiment is not to technical scheme
Limitation, any changed in the form rather than substance according to the utility model design should all be considered as protection model of the present utility model
Enclose.
Referring to Fig. 1, a kind of anti-error suction supervising device of swimming pool is the utility model is related to, including programmable controller master
Machine PLC-CPU, programmable controller expansion module PLC-EM, water sucking mouth left direction ultrasonic range finder TD1, water sucking mouth are just
Front direction ultrasonic range finder TD2, water sucking mouth right direction ultrasonic range finder TD3, flow instrument TF, frequency converter FC and draining
Pump M.Described programmable controller main frame PLC-CPU connections programmable controller expansion module PLC-EM and outside is upper
Machine PC, described programmable controller expansion module PLC-EM and water sucking mouth left direction ultrasonic range finder TD1, water sucking mouth
Front is described to ultrasonic range finder TD2, water sucking mouth right direction ultrasonic range finder TD3 and frequency converter FC connection
Frequency converter FC connection draining pumps M, described flow instrument TF connection programmable controller main frame PLCs-CPU.
Please continue to refer to Fig. 1, described programmable controller main frame PLC-CPU and programmable controller expansion module
The CPU224XP modules and EM235 modules of Siemens Company, water sucking mouth left direction ultrasonic range finder is respectively adopted in PLC-EM
TD1, immediately ahead of water sucking mouth to ultrasonic range finder TD2 and water sucking mouth right direction ultrasonic range finder TD3 using have 4~
The model SONIC-2 of 20mA current output signals ultrasonic sensor, flow instrument TF is using model FFT-0015
Electromagnetic flowmeter, frequency converter FC can use general water pump using Siemens's MM440 frequency converters, draining pump M.Described can
RA ends and the A+ ends for programming sequence controller expansion module PLC-EM are jointly negative with water sucking mouth left direction ultrasonic range finder TD1
Extreme connection, programmable controller expansion module PLC-EM A- ends are connected with the negative pole end of direct current 24V power supplys, direct current 24V
The positive terminal of power supply is connected with water sucking mouth left direction ultrasonic range finder TD1 positive terminal.Programmable controller expanded mode
Block PLC-EM RB ends and B+ ends is connected with immediately ahead of water sucking mouth to ultrasonic range finder TD2 negative pole end jointly, programmable
Controller expansion module PLC-EM B- ends are connected with the negative pole end of direct current 24V power supplys, the positive terminal of direct current 24V power supplys and water suction
Connected immediately ahead of mouthful to ultrasonic range finder TD2 positive terminal.Programmable controller expansion module PLC-EM RC ends and C+
The negative pole end jointly with water sucking mouth right direction ultrasonic range finder TD3 is held to be connected, programmable controller expansion module PLC-
EM C- ends are connected with the negative pole end of direct current 24V power supplys, positive terminal and the water sucking mouth right direction ultrasound of direct current 24V power supplys
Distance meter TD3 positive terminal connection.Programmable controller expansion module PLC-EM M0 ends and frequency converter FC Ain1+, GND pin
Connection, programmable controller expansion module PLC-EM V0 ends are connected with frequency converter FC Ain1- pin, Ain1+, Ain1-,
GND pin are frequency converter FC control terminal, and frequency converter FC input L1, L2, L3 connect 380 volts of three phase mains, and frequency converter FC's is defeated
Go out to hold U, V, W to run in water pump M.Programmable controller expansion module PLC-EM L+ ends connect with the positive terminal of direct current 24V power supplys
Connect, programmable controller expansion module PLC-EM M ends and the negative pole end common ground of direct current 24V power supplys.Programmable control
Device expansion module PLC-EM processed expansion connector DB by extend connecting cable BUS and programmable controller main frame PLC-
CPU expansion connector DB connects.Programmable controller main frame PLC-CPU RA ends and A+ ends is jointly negative with flow instrument TF
Extreme connection, programmable controller main frame PLC-CPU A- ends are connected with the negative pole end of direct current 24V power supplys, direct current 24V power supplys
Positive terminal be connected with flow instrument TF positive terminal.Programmable controller main frame PLC-CPU L+ ends and direct current 24V power supplys
Positive terminal connects, programmable controller main frame PLC-CPU M ends and the negative pole end common ground of direct current 24V power supplys.It is programmable
Sequence controller main frame PLC-CPU RS485 COM1s are connected by cable PC/PPI and the RS232C COM1s of host computer PC
Connect.
Referring to Fig. 2, and combine Fig. 1, described programmable controller main frame PLC-CPU, programmable controller expand
Open up module PLC-EM, frequency converter FC, draining pump M and flow instrument TF and form closed loop configuration, for controlling swimming pool water sucking mouth
Drain discharge AFV.Operation has drain discharge set-point determining program CEP and draining in programmable controller main frame PLC-CPU
Flow control procedure PID, the drain discharge AFV of water sucking mouth are monitored by flow instrument TF and are formed drain discharge measured value TFV, arrange
Deviation, programmable controller main frame PLC-CPU are formed after water-carrying capacity set-point SFV and drain discharge measured value TFV
The deviation is calculated by drain discharge control program PID, then sends instruction to frequency converter FC, regulation draining pump M's
Rotating speed, and then the drain discharge AFV of water sucking mouth is quickly and accurately controlled, it is followed drain discharge set-point SFV.Water sucking mouth
To ultrasonic range finder TD2, water sucking mouth right direction ultrasound immediately ahead of left direction ultrasonic range finder TD1, water sucking mouth
Distance meter TD3 is arranged on the top of swimming pool water sucking mouth, and position data of the swimmer apart from water sucking mouth is monitored in real time in three directions,
And by programmable controller expansion module PLC-EM by the position data pass to programmable controller main frame PLC-
CPU, drain discharge set-point SFV is determined according to minimum value therein by drain discharge set-point determining program CEP, inhaled with reducing
Suction of the mouth of a river to swimmer.When the Monitoring Data of each ultrasonic range finder is in warning value, by drain discharge set-point SFV
Zero delivery is adjusted to, to avoid swimmer from being inhaled into discharge outlet.Programmable controller main frame PLC-CPU inhales swimmer's distance
The real-time adjustment situation of the real-time measurements at the mouth of a river and corresponding drain discharge, is sent to host computer PC and is shown in time.
Claims (2)
- A kind of 1. anti-error suction supervising device of swimming pool, it is characterised in that:Including programmable controller main frame PLC-CPU, can compile Cyclelog expansion module PLC-EM, water sucking mouth left direction ultrasonic range finder TD1, immediately ahead of water sucking mouth to ultrasound Distance meter TD2, water sucking mouth right direction ultrasonic range finder TD3, flow instrument TF, frequency converter FC and draining pump M, described compiles Cyclelog main frame PLC-CPU connections programmable controller expansion module PLC-EM and outside host computer PC, described can To ultrasound immediately ahead of programming sequence controller expansion module PLC-EM and water sucking mouth left direction ultrasonic range finder TD1, water sucking mouth Ripple rangefinder TD2, water sucking mouth right direction ultrasonic range finder TD3 and frequency converter FC connection, described frequency converter FC connections Draining pump M, described flow instrument TF connection programmable controller main frame PLC-CPU, programmable controller main frame PLC- CPU, programmable controller expansion module PLC-EM, frequency converter FC, draining pump M and flow instrument TF form closed loop configuration, use Drain discharge AFV in control swimming pool water sucking mouth, the drain discharge AFV of water sucking mouth monitor to form blowdown stream by flow instrument TF Deviation, program controller PLC are formed after measurement TFV, drain discharge set-point SFV and drain discharge measured value TFV Device main frame PLC-CPU sends instruction according to the deviation to frequency converter FC, regulation draining pump M rotating speed, it is followed drain discharge Set-point SFV;To ultrasonic range finder TD2 and water suction immediately ahead of water sucking mouth left direction ultrasonic range finder TD1, water sucking mouth Mouth right direction ultrasonic range finder TD3 monitors position data of the swimmer apart from water sucking mouth in real time, and passes through programmable control The position data is passed to programmable controller main frame PLC-CPU, programmable controller by device expansion module PLC-EM processed Main frame PLC-CPU determines drain discharge set-point SFV according to minimum value therein, to reduce suction of the water sucking mouth to swimmer.
- A kind of 2. anti-error suction supervising device of swimming pool according to claim 1, it is characterised in that described programmable control The CPU224XP modules of Siemens Company are respectively adopted in device main frame PLC-CPU and programmable controller expansion module PLC-EM processed With EM235 modules, water sucking mouth left direction ultrasonic range finder TD1, immediately ahead of water sucking mouth to ultrasonic range finder TD2 and water suction Mouth right direction ultrasonic range finder TD3 is using the ultrasonic wave of the model SONIC-2 with 4~20mA current output signals Sensor, flow instrument TF is using model FFT-0015 electromagnetic flowmeter, and frequency converter FC is using Siemens MM440 Frequency converter, described programmable controller expansion module PLC-EM RA ends and A+ ends are jointly ultrasonic with water sucking mouth left direction Ripple rangefinder TD1 negative pole end connection, programmable controller expansion module PLC-EM A- ends and the negative pole of direct current 24V power supplys End connection, the positive terminal of direct current 24V power supplys are connected with water sucking mouth left direction ultrasonic range finder TD1 positive terminal, may be programmed Sequence controller expansion module PLC-EM RB ends and B+ ends jointly with water sucking mouth immediately ahead of to ultrasonic range finder TD2 negative pole end Connection, programmable controller expansion module PLC-EM B- ends are connected with the negative pole end of direct current 24V power supplys, direct current 24V power supplys Positive terminal and water sucking mouth immediately ahead of be connected to ultrasonic range finder TD2 positive terminal, programmable controller expansion module Negative pole end of the PLC-EM RC ends and C+ ends jointly with water sucking mouth right direction ultrasonic range finder TD3 is connected, programmable control Device expansion module PLC-EM processed C- ends are connected with the negative pole end of direct current 24V power supplys, the positive terminal of direct current 24V power supplys and water sucking mouth Right direction ultrasonic range finder TD3 positive terminal connection, programmable controller expansion module PLC-EM M0 ends and frequency conversion Device FC Ain1+, GND pin connection, programmable controller expansion module PLC-EM V0 ends and frequency converter FC Ain1- pin Connection, Ain1+, Ain1-, GND pin are frequency converter FC control terminal, and frequency converter FC input L1, L2, L3 connect 380 volts of three-phases Power supply, frequency converter FC output end U, V, W run in water pump M, programmable controller expansion module PLC-EM L+ ends and direct current The positive terminal connection of 24V power supplys, programmable controller expansion module PLC-EM M ends and the negative pole end of direct current 24V power supplys are total to With ground connection, programmable controller expansion module PLC-EM expansion connector DB is by extending connecting cable BUS with may be programmed Sequence controller main frame PLC-CPU expansion connector DB connects, and programmable controller main frame PLC-CPU RA ends and A+ ends are total to It is connected with the negative pole end with flow instrument TF, programmable controller main frame PLC-CPU A- ends and the negative pole end of direct current 24V power supplys Connection, the positive terminal of direct current 24V power supplys are connected with flow instrument TF positive terminal, programmable controller main frame PLC-CPU L+ End is connected with the positive terminal of direct current 24V power supplys, programmable controller main frame PLC-CPU M ends and the negative pole of direct current 24V power supplys Hold common ground, programmable controller main frame PLC-CPU RS485 COM1s pass through cable PC/PPI and host computer PC RS232C COM1s connect.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720639492.8U CN206785666U (en) | 2017-06-05 | 2017-06-05 | A kind of anti-error suction supervising device of swimming pool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720639492.8U CN206785666U (en) | 2017-06-05 | 2017-06-05 | A kind of anti-error suction supervising device of swimming pool |
Publications (1)
Publication Number | Publication Date |
---|---|
CN206785666U true CN206785666U (en) | 2017-12-22 |
Family
ID=60715229
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201720639492.8U Expired - Fee Related CN206785666U (en) | 2017-06-05 | 2017-06-05 | A kind of anti-error suction supervising device of swimming pool |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN206785666U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108824857A (en) * | 2018-06-29 | 2018-11-16 | 金袁弟 | Swimming pool drains anti-suction people's structure |
CN111260886A (en) * | 2020-01-15 | 2020-06-09 | 北斗(天津)科学技术应用研究院(有限合伙) | Detection method for detecting position of person in swimming pool by using infrared camera and image analysis |
-
2017
- 2017-06-05 CN CN201720639492.8U patent/CN206785666U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108824857A (en) * | 2018-06-29 | 2018-11-16 | 金袁弟 | Swimming pool drains anti-suction people's structure |
CN111260886A (en) * | 2020-01-15 | 2020-06-09 | 北斗(天津)科学技术应用研究院(有限合伙) | Detection method for detecting position of person in swimming pool by using infrared camera and image analysis |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN206785666U (en) | A kind of anti-error suction supervising device of swimming pool | |
CN205068207U (en) | Swimming pool control system | |
CN204373729U (en) | Intelligent water level measuring system | |
CN107074523A (en) | Agriculture unmanned plane liquid-adding device | |
CN108019542A (en) | A kind of turbine type decompression, the Intelligent pressure reducing valve and control method of power generation | |
CN110075391A (en) | A kind of adaptive transfusion system based on PID control | |
CN206571695U (en) | A kind of remotely intelligently monitoring pumping plant | |
CN207646300U (en) | Water flow monitoring device and hypochlorite generator | |
CN107432221A (en) | A kind of method of work of distributed automatic spraying arrangement | |
CN205638399U (en) | Digital intelligence is transferred and is driven injection control device | |
CN201674208U (en) | Water pump protecting circuit and massage pool with water pump | |
CN106193675A (en) | A kind of adverse current swimming formula swimming instruction pond | |
CN203619848U (en) | Intelligent driving device of respiratory tract cleaning system | |
CN205922302U (en) | Moisturizing device is irrigated to intelligence | |
CN209330935U (en) | Intelligent aquarium heater | |
CN207633429U (en) | A kind of seawater tailored version non-negative pressure water-supply installation | |
CN207286371U (en) | Internal Medicine-Cardiovascular Dept. care device | |
CN117717472B (en) | Split type oxygen water bath device | |
CN110273566A (en) | Small home swimming pool | |
CN208105978U (en) | A kind of swimming-pool water circulation water-pusher easy for installation | |
CN207513253U (en) | A kind of multifunctional swimming pool | |
CN206942242U (en) | A kind of intelligentized mini swimming pool | |
CN206041618U (en) | Water level measurement and control device | |
CN206706899U (en) | A kind of integrated prefabricated water supply pumping plant | |
CN206345692U (en) | Water treatment controlling system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 Termination date: 20210605 |
|
CF01 | Termination of patent right due to non-payment of annual fee |