CN204705905U

CN204705905U - Single needle water level probe

Info

Publication number: CN204705905U
Application number: CN201520255119.3U
Authority: CN
Inventors: 李奇胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-26
Filing date: 2015-04-26
Publication date: 2015-10-14
Anticipated expiration: 2025-04-26

Abstract

The utility model discloses a kind of single needle water level probe, be made up of probe, pipe cap, stop collar, wire, connecting pipe, female adapter, wire sleeve; Probe and stop collar are fastenedly connected, stop collar and wire bonds, and probe, stop collar, wire form the path extraction that a conductive path is formed by pipe cap, connecting pipe, female adapter, wire sleeve.The pairing of single needle water level probe uses, high water stage single needle water level probe, low-water level single needle water level probe, when the probe contacts of high water stage single needle water level probe is to water, high water stage single needle water level probe and ground conductive, drain command can be sent after control system receives this signal and start pumping drainage, draining leaves the water surface to the probe of low-water level single needle water level probe during certain degree, low-water level single needle water level probe and ground wire not conducting, can send after control system receives this signal and stop drain command and the power supply that switches off the pump, realize water-level detecting like this and control.

Description

Single needle water level probe

Technical field

The utility model relates to water lev el control field, particularly water level probe field.

Background technology

Existing water lev el control has a lot of mode, and as ball float water level control, ultrasonic solution level controller water lev el control, probe water lev el control, ball float water level controls to use extensively at present, but ball float easily adheres to dirt, make ball float can not action message, have poor contact of contacts phenomenon, result be that system is out of control.Fluid level transmitter+intelligent controller water lev el control, ultrasonic solution level controller water lev el control all because price is high, is not commercially used widely.

Water level probe control is also that the one of water lev el control is selected, structure is simple, cost is low, easy for installation, use commonplace in field of Environment Protection particularly wastewater level control, because dirt is more in sewage, ball float water level controls the most easily to lose efficacy because ball float adheres to dirt, and ultrasonic solution level controller also can exist because of dirt and the uncertain water level making ultrasonic signal cannot react actual of dirt kind.

But the water level probe used at present is made up of the probe of three close proximity, Fig. 1 is existing water level probe axle side schematic diagram, long probe 101, middle probe 102 and short probe 103 extend in connecting pipe 105 by three holes of pipe cap 104, three wires are had in three heart yearns 108, wire 109 respectively, wire 110 and wire 111, three heart yearns 108 are by wire sleeve 107, female adapter 106 also enters in connecting pipe 105, be connected with short probe 103 at connecting pipe 105 inside conductor 109, wire 110 is connected with middle probe 102, wire 111 is connected with long probe 101, wire 109, wire 110 and wire 111 are all received in control system, the wire 111 be connected with long probe 101 is as ground wire.

Fig. 2 is existing water level probe water lev el control principle schematic, existing water level probe is three pin water level probes and is that pairing uses, high-level probe 203, low-level probe 202, when water level is higher than D waterline, long probe 101 in high-level probe 203, middle probe 102 and short probe 103 all duck in drink, now middle probe 102 and short probe 103 all with long probe 101 conducting, control system sends after receiving this signal and starts water pump 204 drain command, the water level of container 201 declines with water pump 204 draining, when dropping to C water level, middle probe 102 in low-level probe 202 and short probe 103 all leave the water surface, middle probe 102 now in low-level probe 202 and short probe 103 not with long probe 101 conducting in low-level probe 202, control system sends the instruction of the 204 stopping drainings that switch off the pump after receiving this signal, such realization is to the control of water level.

This water level probe is easy to burn out water pump in sewage.

When the contaminants adhere containing moisture content between the long probe 101 and middle probe 102 of high-level probe 203 or long probe 101 with short probe 103 time, even if water level does not arrive D water level, the long probe 101 of high-level probe 203 and middle probe 102 conducting or long probe 101 and the conducting of short probe 103, the drain command starting water pump 204 can be sent after control system receives this signal, if dirt sticks between probe for a long time, water pump 204 would not stop, when the contaminants adhere containing moisture content between the long probe 101 and middle probe 102 of low-level probe 202 or long probe 101 with short probe 103 time, even if below water level decreasing to C water level, system still receives the signal that long probe 101 is connected with middle probe 102 or short probe 103, control system can not send 204 instructions that switch off the pump, such container 201 lack of water water pump 204 is just easy to burn out.

Summary of the invention

Water lev el control Problem of Failure is caused for overcoming existing water level probe due to contaminants adhere, the present invention proposes a solution, existing three pin water level probes are substituted with single needle water level probe, single needle water level probe will make water lev el control lose efficacy at detecting head surface because of contaminants adhere, single needle water level probe is by popping one's head in, pipe cap, stop collar, wire, connecting pipe, female adapter, wire sleeve forms, pipe cap, connecting pipe, female adapter, the skeleton of wire sleeve composition single needle water level probe, for installing, fixing single needle water level probe, probe and stop collar adopt metal material, can by the electric signal of probe by probe, stop collar, wire passes to control system, stop collar and probe are fastenedly connected and probe can be limited in pipe cap and connecting pipe locate, probe can not come off under external force, stop collar and wire bonds, make probe, stop collar, electric signal is sent to control system by wire composition conductive path.

Accompanying drawing explanation

Fig. 1 is existing water level probe axle side schematic diagram.

Fig. 2 is existing water level probe water lev el control principle schematic.

Fig. 3 is single needle water level probe explosive view of the present invention.

Fig. 4 is single needle water level probe water lev el control principle schematic of the present invention.

Embodiment

Fig. 3 is single needle water level probe explosive view of the present invention, comprise probe 301, pipe cap 104, stop collar 302, wire 303, connecting pipe 105, female adapter 106, wire sleeve 107, probe 301 and stop collar 302 can adopt and to weld or engagement thread is connected and fixed, can probe 301 be fixed in pipe cap 104 and connecting pipe 105 by stop collar 302 like this, can not pop one's head under external force and 301 to come off, wire 303 and stop collar 302 adopt and are welded to connect, and wire is drawn by connecting pipe 105, female adapter 106, wire sleeve 107.

Fig. 4 is single needle water level probe water lev el control principle schematic of the present invention, when water level rises to more than D waterline, high water stage single needle water level probe 403 contacts the water surface, high water stage single needle water level probe 403 and common ground 401 are connected, control system sends when receiving this signal and starts water pump 204 drain command, the water level of container 201 declines with the draining of water pump 204, when dropping to C water level, the probe of low-water level single needle water level probe 402 leaves the water surface, now low-water level single needle water level probe 402 not with common ground 401 conducting, control system sends the instruction of the 204 stopping drainings that switch off the pump after receiving this signal, such realization is to the control of water level.Common ground 401 and the distance between high water stage single needle water level probe 403 and low-water level single needle water level probe 402 can be very large, the possibility that common ground 401 and high water stage single needle water level probe 403 or low-water level single needle water level probe 402 couple together by such dirt is just very little, substantially increases the reliability of water lev el control.

Claims

1. a single needle water level probe, be made up of probe, pipe cap, stop collar, wire, connecting pipe, female adapter, wire sleeve, it is characterized in that the skeleton of pipe cap, connecting pipe, female adapter, wire sleeve composition single needle water level probe, probe and stop collar adopt metal material, and stop collar is fastenedly connected with probe and is fixed on and is made up of in the skeleton of single needle water level probe pipe cap, connecting pipe, female adapter, wire sleeve.