CN208202026U - A kind of automatic loading water for water tank is cut off the water control device - Google Patents
A kind of automatic loading water for water tank is cut off the water control device Download PDFInfo
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- CN208202026U CN208202026U CN201820770784.XU CN201820770784U CN208202026U CN 208202026 U CN208202026 U CN 208202026U CN 201820770784 U CN201820770784 U CN 201820770784U CN 208202026 U CN208202026 U CN 208202026U
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Abstract
Cut off the water control device the utility model relates to a kind of automatic loading water for water tank, control device is control power cabinet, controlling power cabinet includes cabinet body and cabinet door, interior of the cabinet is equipped with installation guide rail, installation guide rail surface is fixed with disconnecting switch, main fuse, main contactor, it three current transformers and electrothermal relay and is arranged successively under upper, four current-limiting resistances are installed on the right side of main fuse, fluid level controller is installed on the downside of current-limiting resistance, fluid level controller lower part installation control transformer and the first control fuse, second control fuse, it controls and intermediate relay is installed on the downside of transformer；Cabinet door front upper installs ammeter, and horizontally arranged power supply indicator, run indicator are equipped in the middle part of cabinet door, stops indicator light and malfunction indicator lamp, cabinet door lower part is equipped with start button, stop button and manual/automatic selector switch；The utility model can manually or automatically both of which start and stop water pump feed-tank moisturizing, flexibility is high, and four indicator lights can indicate that the state of water pump.
Description
Technical field
The utility model relates to arrive mechanical equipment control technology field more particularly to a kind of automatic loading water for water tank
Cut off the water control device.
Background technique
At this stage, most of families provide daily water consumption using tower-free water supplying or water tank, but it is more when use knife
Lock is operated, and the unlatching feed-tank for controlling water pump supplies water, after a period of time, after which knife is manually operated after the completion of water on water tank
Lock disconnects the power supply of water pump, can stop feed-tank water supply, and the automatic loading water that can not achieve water pump is cut off the water, and also nothing
Method monitors operating condition when pump working, once water pump breaks down, is unfavorable for user and quickly understands the practical event of water pump
Hinder situation, the time is long, then will lead to water pump and burn out because long-time overheats, at this moment just need a kind of automatic loading water for water tank
Cut off the water control device.
Utility model content
The utility model provides a kind of automatic loading water for water tank and cuts off the water control device, the above problem of solution.
To solve the above problems, the technical scheme that the utility model is provided is as follows:
A kind of automatic loading water for water tank is cut off the water control device, and the control device is control power cabinet, the control
Power cabinet includes cabinet body and cabinet door, and the interior of the cabinet is equipped with installation guide rail, the installation guide rail surface be fixed with disconnecting switch,
It main fuse, main contactor, three current transformers and electrothermal relay and is arranged successively under upper, the right side of the main fuse
Four current-limiting resistances are installed in side, and fluid level controller, the lower part installation control transformation of fluid level controller are installed in the downside of current-limiting resistance
Intermediate relay is installed in device and the first control fuse, the second control fuse, the downside of the control transformer；
The front upper of the cabinet door installs ammeter, the middle part of the cabinet door be equipped with horizontally arranged power supply indicator,
Run indicator stops indicator light and malfunction indicator lamp, the lower part of the cabinet door be equipped with start button, stop button and manually/
Automatic transfer switch.
Preferably, the main contact of the disconnecting switch, main fuse and main contactor is sequentially connected electrically the master for constituting water pump
The input terminal in circuit, disconnecting switch is electrically connected with alternating current L1, L2, L3, and the three-phase leader cable of the output end of main contactor passes through respectively
The centre bore for wearing three current transformers is electrically connected with the pump motor on the outside of control electric cabinet again, and the shell of oil pump motor
Protective grounding；Positioned at control electric cabinet outer water tank in lower liquid level dry reed switch and upper liquid level dry reed switch respectively with fluid level controller
Lower liquid level terminal and upper liquid level terminal electrical connection.
Preferably, three current transformers are from left to right followed successively by A phase current mutual inductor, B phase current mutual inductor, C
Phase current mutual inductor；
Secondary terminals S1 distribution and the electrothermal relay master of secondary terminals S1 and the C phase current mutual inductor of A phase current mutual inductor
The A phase inlet side of contact and the electrical connection of C phase inlet side, the secondary terminals S1 of B phase current mutual inductor is by ammeter and electrothermal relay master
The B phase inlet side of contact is electrically connected, and the secondary terminals S2 of A phase, B phase, C phase current transformer uses the first control line to be shorted and connects
Ground, A phase outlet, B phase outlet and the C phase inlet side of electrothermal relay main contact use the second control line be shorted, and the first control line with
The electrical connection of second control line.
Preferably, the output that the firewire of the input terminal of the control transformer controls fuse and main fuse by first
Any one is held to be electrically connected, the zero curve for controlling the input terminal of transformer is electrically connected with alternating current zero curve, and control transformer first is defeated
Voltage between outlet and second output terminal is to exchange 36V；
The first output end for controlling transformer is electrically connected with the input terminal of the second control fuse, and the one of current-limiting resistance R1
End, the contact 1 of manual/automatic selector switch, coil one end of intermediate relay, normally-closed contact one end of main contactor, master connect
The output end of second normally opened contact one end of tentaculum and normally opened contact one end of intermediate relay with the second control fuse
Electrical connection, the other end of current-limiting resistance R1 are electrically connected using as control with the second output terminal of control transformer by power supply indicator
Electric power loop processed, second output of the coil other end of intermediate relay through the normally opened contact of overtemperature relay and control transformer
End electrical connection using the normally-closed contact other end as intermediate relay wire loop, main contactor successively pass through current-limiting resistance R2,
Stop indicator light with control transformer second output terminal be electrically connected using as water pump stopping indicate circuit, the second of main contactor
The normally opened contact other end successively passes through current-limiting resistance R3, run indicator is electrically connected with the second output terminal of control transformer to make
For water pump operation indicate circuit, the normally opened contact other end of intermediate relay successively pass through current-limiting resistance R4, malfunction indicator lamp with
The second output terminal electrical connection of transformer is controlled to indicate circuit as fault of water pump；
Lower liquid level dry reed switch, upper liquid level dry reed switch, main contact are successively passed through in the contact 2 of manual/automatic selector switch
The coil of device and the normally-closed contact of electrothermal relay are electrically connected with the second output terminal of control transformer, and the first of main contactor
Normally opened contact is connected in parallel on the both ends of lower liquid level dry reed switch, is cut off the water control loop using the automatic loading water as water pump；
The contact 3 of manual/automatic selector switch successively by stop button, start button, main contactor coil, heat after
The normally-closed contact of electric appliance is electrically connected with the second output terminal of control transformer, and the third normally opened contact of main contactor is connected in parallel on and opens
The both ends of dynamic button are cut off the water control loop using the manual water of going up as water pump.
Preferably, the outer edge of the cabinet body is equipped with a circle deep gouge, places sealing ring in the deep gouge, the cabinet door it is interior
Edge is equipped with and the matched circle arc-shaped slot of sealing ring.
Beneficial effect compared with the existing technology is, using the above scheme, the utility model is by by manual/auto switching
Switching to auto state, the i.e. contact 1 Yu contact 2 of manual/automatic selector switch is connected, when water level is lower, lower liquid level
Dry reed switch is closed and gives fluid level controller signal, so that the coil of main contactor obtains electric, three main contacts of main contactor are same
When be closed, pump motor obtains electric operation, feed-tank moisturizing；When water level supplements to a certain extent, upper liquid level dry reed switch is disconnected
Fluid level controller signal is opened and gives, thus the coil losing electricity of main contactor, three main contacts of main contactor are simultaneously switched off, water pump
Electric motor circuit breaking shuts down, and stops feed-tank moisturizing, to realize water tank automatic loading water and cut off the water；By manual/auto switching
When switching to manual mode, i.e., the contact 1 Yu contact 3 of manual/automatic selector switch are connected, when water level is lower, pressing
Start button, main contactor coil obtain electric, the third normally opened contact closure self-insurance of main contactor, while three masters of main contactor
Contact closure, pump motor obtain electric operation, and feed-tank moisturizing, when cistern water level is increased to certain position, pressing stops
The third normally opened contact of button, main contactor coil power-off, main contactor resets, while three main contacts of main contactor are disconnected
It opens, pump motor power-off shuts down, and stops feed-tank moisturizing；
When closing control fuse, when main contactor coil obtains electric, power supply indicator work, then it represents that control transformer
Secondary side has electricity；Started by press button or lower liquid level dry reed switch closure, when run indicator works, then it represents that water pump is normal
Work feed pump moisturizing；It presses stop button or upper liquid level dry reed switch disconnects, when stopping indicator light work, then it represents that water pump
Stop feed-tank moisturizing；When water pump overload is shut down, electrothermal relay movement, normally-closed contact is disconnected, the coil of main contactor
Three main contacts of power loss, main contactor simultaneously switch off, and pump motor power-off stops working, and the normally-closed contact of main contactor is multiple
Position stops indicator light and also works, and plays the role of protecting pump motor, and the normally opened contact closure of electrothermal relay, failure refer to
Show that lamp works, indicates fault of water pump.
Detailed description of the invention
Illustrate embodiment or technical solution in the prior art in order to clearer, it below will be to embodiment or the prior art
The required attached drawing used is briefly described in description, it is clear that, the accompanying drawings in the following description is only the one of utility model
A little embodiments for those of ordinary skill in the art without creative efforts, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the water pump major loop electrical schematic diagram of the utility model；
Fig. 3 is the water pump control loop schematic diagram of the utility model；
Shown in the above legend: 20, cabinet body 21, cabinet door 22, disconnecting switch 23, main fuse 24, main contact
Device 25, current transformer 26, electrothermal relay 27, current-limiting resistance 28, fluid level controller 29, control transformer
30, intermediate relay 31, ammeter 32, manual/automatic selector switch.
Specific embodiment
For the ease of understanding the utility model, in the following with reference to the drawings and specific embodiments, the utility model is carried out more detailed
Thin explanation.The preferred embodiment of the utility model is given in attached drawing.But the utility model can be with many different
Form is realized, however it is not limited to this specification described embodiment.On the contrary, purpose of providing these embodiments is makes to this
The understanding of the disclosure of utility model is more thorough and comprehensive.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term used in this specification " fixation ", " integrated molding ",
For illustrative purposes only, the similar unit of structure is to identical label in the figure for "left", "right" and similar statement
Mark.
Unless otherwise defined, technical and scientific term all used in this specification and the skill for belonging to the utility model
The normally understood meaning of the technical staff in art field is identical.Art used in the description of the utility model in this specification
Language, which is only for the purpose of describing specific embodiments, is not intended to limitation the utility model.
As shown in Figure 1, one embodiment of the utility model is:
A kind of automatic loading water for water tank is cut off the water control device, and the control device is control power cabinet, the control
Power cabinet includes cabinet body 20 and cabinet door 21, is equipped with installation guide rail inside the cabinet body 20, the installation guide rail surface be fixed with every
It leaves pass 22, main fuse 23,24, three current transformers 25 of main contactor and electrothermal relay 26 and successively arranges under upper
Four current-limiting resistances 27 are installed on column, the right side of the main fuse 23, and fluid level controller 28, liquid are installed in the downside of current-limiting resistance 27
The lower part installation control transformer 29 and the first control fuse and the second control fuse of level controller 28, the control transformation
The downside of device 29 is installed by intermediate relay 30；
The front upper of the cabinet door 21 installs ammeter 31, and the middle part of the cabinet door 21 is equipped with horizontally arranged power supply and refers to
Show lamp, run indicator, stop indicator light and malfunction indicator lamp, the lower part of the cabinet door 21 is equipped with start button, stop button
With manual/automatic selector switch 32.
Preferably, as shown in Fig. 2, the main contact of the disconnecting switch QS, main fuse FU and main contactor KM are successively electric
The major loop of water pump is connected and composed, the input terminal of disconnecting switch QS is electrically connected with alternating current L1, L2, L3, the output of main contactor KM
The three-phase leader cable at end extend through the centre bore of three current transformers TA1, TA2, TA3 again with the water pump on the outside of control electric cabinet
Motor M electrical connection, and the shell protective grounding of oil pump motor M；The dry spring of lower liquid level in control electric cabinet outer water tank is opened
SL2 and upper liquid level dry reed switch SL1 is closed to be electrically connected with the lower liquid level terminal of fluid level controller and upper liquid level terminal respectively.
Further, fluid level controller is AYK20-1 type automatic controller for water level or DJF-LED-YKQ-D type Liquid level
Device.
Preferably, three current transformers are from left to right followed successively by A phase current mutual inductor TA1, B phase current mutual inductance
Device TA2, C phase current mutual inductor TA3；
Secondary terminals S1 distribution and the electrothermal relay FR of secondary terminals S1 and the C phase current mutual inductor of A phase current mutual inductor
The A phase inlet side of main contact and the electrical connection of C phase inlet side, the secondary terminals S1 of B phase current mutual inductor is by ammeter PA and hot relay
The B phase inlet side of device main contact is electrically connected, and the secondary terminals S2 of A phase, B phase, C phase current transformer uses the first control line to be shorted simultaneously
Ground connection, A phase outlet, B phase outlet and the C phase inlet side of electrothermal relay main contact use the second control line to be shorted, and the first control line
It is electrically connected with the second control line.
Ammeter can real-time display water outlet pump motor operating current.
Preferably, as shown in figure 3, the firewire of the input terminal of the control transformer TC is by the first control fuse FU0
It is electrically connected with any phase L of the output end of main fuse, the zero curve for controlling the input terminal of transformer TC is electrically connected with alternating current zero curve N
It connects, controlling the voltage between the first output end and second output terminal of transformer TC is to exchange 36V；
The first output end for controlling transformer TC is electrically connected with the input terminal of the second control fuse FU1, current-limiting resistance R1
One end, the contact 1 of manual/automatic selector switch SA, coil one end of intermediate relay KA, main contactor KM normally-closed contact
Normally opened contact one end of one end, second normally opened contact one end of main contactor KM and intermediate relay KA is molten with the second control
The output end electrical connection of disconnected device FU1, the other end of current-limiting resistance R1 is by the second of power supply indicator HL1 and control transformer TC
Output end electrical connection is using as control electric power loop, the coil other end of intermediate relay KA is through the normally opened touching of overtemperature relay FR
Point is electrically connected as intermediate relay wire loop, the normally closed touching of main contactor KM with the second output terminal for controlling transformer TC
The point other end successively passes through current-limiting resistance R2, stopping indicator light HL2 is electrically connected with the second output terminal for controlling transformer TC to make
Stop instruction circuit for water pump, the second normally opened contact other end of main contactor KM successively passes through current-limiting resistance R3, operation instruction
Lamp HL3 is electrically connected with the second output terminal of control transformer TC to indicate circuit as water pump operation, and intermediate relay KA's is normal
Open the contact other end successively pass through current-limiting resistance R4, malfunction indicator lamp HL4 with control transformer TC second output terminal be electrically connected
To indicate circuit as fault of water pump；
Lower liquid level dry reed switch SL2, upper liquid level dry reed switch are successively passed through in the contact 2 of manual/automatic selector switch SA
The normally-closed contact of SL1, the coil of main contactor KM and electrothermal relay FR are electrically connected with the second output terminal of control transformer TC,
And the first normally opened contact of main contactor KM is connected in parallel on the both ends of lower liquid level dry reed switch SL2, using the automatic loading water as water pump
Cut off the water control loop；
Stop button SB1, start button SB2, main contactor KM are successively passed through in the contact 3 of manual/automatic selector switch SA
Coil, electrothermal relay FR normally-closed contact be electrically connected with the second output terminal of control transformer TC, and the of main contactor KM
Three normally opened contacts are connected in parallel on the both ends of start button SB2, are cut off the water control loop using the manual upper water as water pump.
Preferably, the outer edge of the cabinet body is equipped with a circle deep gouge, places sealing ring in the deep gouge, the cabinet door it is interior
Edge is equipped with and the matched circle arc-shaped slot of sealing ring.
The course of work:
Control circuit power transmission: successively closing disconnecting switch QS, main fuse FU, first closes the primary side of control transformer
First control fuse FU0, in the second control fuse FU1 for closing the secondary side of control transformer, subsequent power supply indicator
HL1 work indicates that control Circuit Fault on Secondary Transformer has electricity, and the primary side for controlling transformer is alternating current 220V, and secondary side is exchange
36V provides the control power supply of exchange 36V for the control circuit of pump motor；
Manual start and stop water pump: switching to manual position for manual/automatic selector switch, connects contact 1, contact 3, pressing
Start button, the coil energized action of main contactor, the second normally opened contact closure of main contactor, run indicator work are main
Three main contacts of contactor are closed at, and pump motor winding obtains the AC power source of three-phase 380V, pump motor fortune
It is given to water tank moisturizing；When stopping, stop button is pressed, the normally-closed contact of stop button disconnects, and the coil for cutting off main contactor returns
Road, main contactor coil power-off release, the normally-closed contact of main contactor reset, and stop indicator light work, three main contacts are simultaneously
It disconnects, pump motor winding is detached from the AC power source of three-phase 380V, stops operating, and stops feed-tank moisturizing；
Automatic start-stop water pump: when water tank being needed to be automatically replenished, manual/automatic selector switch is switched into manual position, is made
Contact 1 is connected with contact 2, and when the near low liquid level of high water tank, lower liquid level dry reed switch is closed and gives fluid level controller signal,
To which the coil of main contactor obtains electric, the third normally opened contact closure self-insurance of main contactor, three main contacts of main contactor are same
When be closed, pump motor obtains electric operation, feed-tank moisturizing；When liquid level is increased to specified position in water tank, the upper dry spring of liquid level is opened
Shutdown opens and to fluid level controller signal, thus the coil losing electricity of main contactor, three main contacts of main contactor are simultaneously switched off,
Pump motor power-off shuts down, and stops feed-tank moisturizing；Ammeter can real-time display water outlet pump motor operating current.
Disorderly closedown process: when there is Overload in pump motor, electrothermal relay FR movement, electrothermal relay it is normal
Contact closure is opened, the coil of intermediate relay obtains electric, the normally opened contact closure of intermediate relay, malfunction indicator lamp work, expression
Pump motor overload is shut down.
Beneficial effect compared with the existing technology is, using the above scheme, the utility model is by by manual/auto switching
Switching to auto state, the i.e. contact 1 Yu contact 2 of manual/automatic selector switch is connected, when water level is lower, lower liquid level
Dry reed switch is closed and gives fluid level controller signal, so that the coil of main contactor obtains electric, three main contacts of main contactor are same
When be closed, pump motor obtains electric operation, feed-tank moisturizing；When water level supplements to a certain extent, upper liquid level dry reed switch is disconnected
Fluid level controller signal is opened and gives, thus the coil losing electricity of main contactor, three main contacts of main contactor are simultaneously switched off, water pump
Electric motor circuit breaking shuts down, and stops feed-tank moisturizing, to realize water tank automatic loading water and cut off the water；By manual/auto switching
When switching to manual mode, i.e., the contact 1 Yu contact 3 of manual/automatic selector switch are connected, when water level is lower, pressing
Start button, main contactor coil obtain electric, the third normally opened contact closure self-insurance of main contactor, while three masters of main contactor
Contact closure, pump motor obtain electric operation, and feed-tank moisturizing, when cistern water level is increased to certain position, pressing stops
The third normally opened contact of button, main contactor coil power-off, main contactor resets, while three main contacts of main contactor are disconnected
It opens, pump motor power-off shuts down, and stops feed-tank moisturizing；
When closing control fuse, when main contactor coil obtains electric, power supply indicator work, then it represents that control transformer
Secondary side has electricity；Started by press button or lower liquid level dry reed switch closure, when run indicator works, then it represents that water pump is normal
Work feed pump moisturizing；It presses stop button or upper liquid level dry reed switch disconnects, when stopping indicator light work, then it represents that water pump
Stop feed-tank moisturizing；When water pump overload is shut down, electrothermal relay movement, normally-closed contact is disconnected, the coil of main contactor
Three main contacts of power loss, main contactor simultaneously switch off, and pump motor power-off stops working, and the normally-closed contact of main contactor is multiple
Position stops indicator light and also works, and plays the role of protecting pump motor, and the normally opened contact closure of electrothermal relay, failure refer to
Show that lamp works, indicates fault of water pump.
It should be noted that above-mentioned each technical characteristic continues to be combined with each other, the various embodiments not being enumerated above are formed,
It is accordingly to be regarded as the range of the utility model specification record；Also, it for those of ordinary skills, can be according to above stating
It is bright to be improved or converted, and all these modifications and variations all should belong to the protection model of the appended claims for the utility model
It encloses.
Claims (5)
- The control device 1. a kind of automatic loading water for water tank is cut off the water, it is characterised in that: the control device is control power cabinet, The control power cabinet includes cabinet body and cabinet door, and the interior of the cabinet is equipped with installation guide rail, and the installation guide rail surface is fixed with It disconnecting switch, main fuse, main contactor, three current transformers and electrothermal relay and is arranged successively under upper, the master Four current-limiting resistances are installed on the right side of fuse, and fluid level controller, the lower part peace of fluid level controller are installed in the downside of current-limiting resistance Intermediate relay is installed in dress control transformer and the first control fuse, the second control fuse, the downside of the control transformer Device；The front upper of the cabinet door installs ammeter, and the middle part of the cabinet door is equipped with horizontally arranged power supply indicator, operation Indicator light stops indicator light and malfunction indicator lamp, and the lower part of the cabinet door is equipped with start button, stop button and manual/auto Switching switch.
- The control device 2. a kind of automatic loading water for water tank described according to claim 1 is cut off the water, it is characterised in that: it is described every The main contact for leaving pass, main fuse and main contactor is sequentially connected electrically the major loop for constituting water pump, the input terminal of disconnecting switch It is electrically connected with alternating current L1, L2, L3, the three-phase leader cable of the output end of main contactor extends through the center of three current transformers Kong Zaiyu controls the pump motor electrical connection on the outside of electric cabinet, and the shell protective grounding of oil pump motor；Positioned at control electric cabinet Lower liquid level dry reed switch and upper liquid level dry reed switch in outer water tank respectively with the lower liquid level terminal of fluid level controller and upper liquid level Terminal electrical connection.
- The control device 3. a kind of automatic loading water for water tank according to claim 2 is cut off the water, it is characterised in that: three The current transformer is from left to right followed successively by A phase current mutual inductor, B phase current mutual inductor, C phase current mutual inductor；Secondary terminals S1 distribution and the electrothermal relay main contact of secondary terminals S1 and the C phase current mutual inductor of A phase current mutual inductor A phase inlet side and the electrical connection of C phase inlet side, the secondary terminals S1 of B phase current mutual inductor is by ammeter and electrothermal relay main contact The electrical connection of B phase inlet side, the secondary terminals S2 of A phase, B phase, C phase current transformer uses the first control line to be shorted and is grounded, hot A phase outlet, B phase outlet and the C phase inlet side of relay main contact use the second control line to be shorted, and the first control line and the second control Line electrical connection processed.
- The control device 4. a kind of automatic loading water for water tank according to claim 2 is cut off the water, it is characterised in that: the control The firewire of the input terminal of transformer processed is electrically connected by the output end any one of the first control fuse and main fuse, controls The zero curve of the input terminal of transformer is electrically connected with alternating current zero curve, is controlled between the first output end of transformer and second output terminal Voltage is exchange 36V；The first output end for controlling transformer is electrically connected with the input terminal of the second control fuse, one end of current-limiting resistance R1, hand Dynamic/contact 1 of automatic transfer switch, coil one end of intermediate relay, normally-closed contact one end of main contactor, main contactor Second normally opened contact one end and normally opened contact one end of intermediate relay are electrically connected with the output end of the second control fuse, The other end of current-limiting resistance R1 by power supply indicator with control transformer second output terminal be electrically connected using as control power supply The coil other end in circuit, intermediate relay is electrically connected through the normally opened contact of overtemperature relay and the second output terminal of control transformer It connects using the normally-closed contact other end as intermediate relay wire loop, main contactor and successively passes through current-limiting resistance R2, stops referring to Show that lamp is electrically connected to stop instruction circuit, the normally opened touching of the second of main contactor as water pump with the second output terminal for controlling transformer The point other end successively passes through current-limiting resistance R3, run indicator is electrically connected with the second output terminal for controlling transformer using as water pump Operation instruction circuit, the normally opened contact other end of intermediate relay successively pass through current-limiting resistance R4, malfunction indicator lamp and control and become The second output terminal electrical connection of depressor is to indicate circuit as fault of water pump；The contact 2 of manual/automatic selector switch is successively by lower liquid level dry reed switch, upper liquid level dry reed switch, main contactor The normally-closed contact of coil and electrothermal relay is electrically connected with the second output terminal of control transformer, and the first of main contactor is normally opened Contact shunt is cut off the water control loop using the automatic loading water as water pump at the both ends of lower liquid level dry reed switch；Stop button, start button, the coil of main contactor, electrothermal relay are successively passed through in the contact 3 of manual/automatic selector switch Normally-closed contact with control transformer second output terminal be electrically connected, and the third normally opened contact of main contactor be connected in parallel on start by The both ends of button are cut off the water control loop using the manual upper water as water pump.
- The control device 5. a kind of automatic loading water for water tank according to claim 2 is cut off the water, it is characterised in that: the cabinet The outer edge of body is equipped with a circle deep gouge, and sealing ring is placed in the deep gouge, and the inward flange of the cabinet door is equipped with to be matched with sealing ring One circle arc-shaped slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820770784.XU CN208202026U (en) | 2018-05-23 | 2018-05-23 | A kind of automatic loading water for water tank is cut off the water control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820770784.XU CN208202026U (en) | 2018-05-23 | 2018-05-23 | A kind of automatic loading water for water tank is cut off the water control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208202026U true CN208202026U (en) | 2018-12-07 |
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ID=64517426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820770784.XU Expired - Fee Related CN208202026U (en) | 2018-05-23 | 2018-05-23 | A kind of automatic loading water for water tank is cut off the water control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208202026U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110231838A (en) * | 2019-03-06 | 2019-09-13 | 中铁十八局集团有限公司 | A kind of precipitation well water level automatic control device and control method |
-
2018
- 2018-05-23 CN CN201820770784.XU patent/CN208202026U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110231838A (en) * | 2019-03-06 | 2019-09-13 | 中铁十八局集团有限公司 | A kind of precipitation well water level automatic control device and control method |
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