CN201434715Y - Liquid level sensor - Google Patents
Liquid level sensor Download PDFInfo
- Publication number
- CN201434715Y CN201434715Y CN2009200735996U CN200920073599U CN201434715Y CN 201434715 Y CN201434715 Y CN 201434715Y CN 2009200735996 U CN2009200735996 U CN 2009200735996U CN 200920073599 U CN200920073599 U CN 200920073599U CN 201434715 Y CN201434715 Y CN 201434715Y
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- Prior art keywords
- liquid level
- level sensor
- sleeve pipe
- tube half
- magnet
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- Expired - Fee Related
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Abstract
A liquid level sensor comprises a body placed in a water tank; the body is provided with an opening and a chamber provided with a reed switch and communicated with the opening; the body is sleeved ona floating ball and a magnet; and a waterproof gasket for an electric wire to penetrate is arranged at the opening of the body in a plug-in manner, so as to seal the chamber. The waterproof gasket ofthe liquid level sensor provided by the utility model can take the place of the traditional adhesive pouring manner for water resistance, thereby achieving the purposes of shortening the assembly timeand improving the assembly convenience.
Description
Technical field
The utility model relates to a kind of sensor, relates to a kind of liquid level sensor specifically.
Background technology
Liquid level sensor can be used for the variation of induction level, and then sends control signal and give control device (as: motor or well heater etc.).Specifically, when liquid level reached ad-hoc location, liquid level sensor can be controlled motor rapidly and draw water, and kept the water level in the tank, and perhaps control heater heats, and keeps the interior temperature of tank.
Fig. 1 is a kind of structural representation of existing liquid level sensor, liquid level sensor 1 comprises that a standpipe 2 and moves the ball float 3 that is sheathed on this standpipe 2, these standpipe 2 inside are provided with a magnetic reed switch 4, and the top 2a of standpipe 2 carries out water-proofing treatment in the mode of encapsulating, and ball float 3 inside are provided with a magnet 3a.When the liquid level in the tank rises, magnet 3a will rise along with ball float 3, after magnetic reed switch 4 is sensed magnet 3a, promptly send signal controlling motor or heater starting, carry out the adjustment of tank liquid level or temperature.
Yet the standpipe 2 top 2a of existing liquid level sensor 1 carry out water-proofing treatment in the encapsulating mode, must carry out the encapsulating operation and wait for colloid solidification, so assembling process is quite consuming time, inconvenient.Fig. 2 is the structural representation of another kind of existing liquid level sensor 5, and liquid level sensor 5 mainly includes mutual socket and a relatively-movable pedestal 6 and a microscler sleeve pipe 7, and the top and bottom ends of microscler sleeve pipe 7 is respectively equipped with magnet 8 and ball float 9, comes sensed level with this.Yet the pedestal 6 top 6a of this liquid level sensor 5 still are to carry out water-proofing treatment in the mode of encapsulating, thus still must pour into colloid and wait for this colloid solidification, so operation is still quite consuming time, inconvenient; In addition, when existing microscler sleeve pipe 7 moves to fixed point, be to fix by a latch 7a backstop of additionally setting up, thus exist part many, and processing, defective that material cost is high.
Summary of the invention
The purpose of this utility model provides a kind of liquid level sensor, assembles more quick and conveniently, and part is few, and processing, the cost of material is low, and has the excellent waterproof effect.
In order to achieve the above object, the technical scheme that the utility model adopted is as follows:
A kind of liquid level sensor is arranged in the tank, and is electrically connected a control device by two electric wires, and it comprises:
One body has an opening, and this body interior is formed with a room that communicates with this opening;
One ball float is arranged on the body;
One magnet is arranged on the body;
One magnetic reed switch is arranged at the room inside of body;
At least one waterproof washer, plug are located at the opening of described body with the sealing room, and described waterproof washer has at least one perforation and wears for two electric wires, and two ends of described two electric wires are electrically connected with described control device and magnetic reed switch respectively.
Described body comprises:
One pedestal comprises that a Guan Yuyi is incorporated into the tubing string of seat pipe below, and the opening of described body is opened in seat pipe top, and the room of body is arranged at tubing string inside, and this tubing string outer wall is formed with at least one stopper section;
One microscler sleeve pipe is sheathed on the pedestal movably, and can be inconsistent and by backstop with described stopper section, and microscler sleeve pipe has a upper tube half and the lower tube half that one links, and upper tube half is sheathed on the tubing string of pedestal, and lower tube half is positioned at below the tubing string;
Described ball float is connected with the lower tube half of microscler sleeve pipe;
Described magnet is arranged at the upper tube half periphery of microscler sleeve pipe;
Described magnetic reed switch is placed in the room of pedestal;
Described waterproof washer plug is located at the seat pipe top of pedestal.
Beneficial effect of the present utility model is:
As above-mentioned structure, the utility model liquid level sensor is located at the opening of body by the waterproof washer plug, and only supply lines passes through, adopt waterproof washer to replace existing encapsulating mode and reach good waterproof effect, so need not carry out the injecting glue operation and wait for colloid solidification, the time of assembling operation can be shortened greatly, and still the excellent waterproof effect can be possessed; And utilize the characteristics of waterproof washer stress deformation, and can finish assembling easily, save time more, convenient.In addition, a pressing plate also can be set on the waterproof washer closely compress with it, and can pass for described two electric wires, the waterproof effect of intensified waterproof packing ring and the tensile strength of electric wire make liquid level sensor meet demands of applications more.
As above-mentioned structure, the pedestal tube column outer wall of the utility model liquid level sensor forms the stopper section in integrated mode, has replaced the latch structure of existing liquid level sensor, so part still less, and processing and cost all can effectively reduce, and have improved economic benefit.
Description of drawings
Fig. 1 is a kind of structural representation of existing liquid level sensor;
Fig. 2 is the structural representation of another kind of existing liquid level sensor;
Fig. 3 is the sectional view of the utility model liquid level sensor one embodiment;
Fig. 4 is the outside drawing at another visual angle of Fig. 3;
Side view when Fig. 5 is positioned at low-water level for the liquid level sensor among Fig. 3;
Side view when Fig. 6 is positioned at high water stage for the liquid level sensor among Fig. 3;
Sectional view when Fig. 7 is two for the waterproof washer of the liquid level sensor among Fig. 3;
Fig. 8 is the sectional view of another embodiment of the utility model liquid level sensor.
The critical piece symbol description
10 pedestals
11 microscler tubing strings, 111 stopper sections
12 pipe 12a openings
13 rooms
14,14 ', 14 " waterproof washer
The 14a perforation
15 pressing plates
16,16 ' loam cake
20 magnetic reed switchs
30 microscler sleeve pipe 31 upper tube half
32 upper sheet spaces, 321 hook parts, 33 fins
34 lower tube half, 35 lower sheet spaces, 351 hook parts
36 hollow-out parts
40 magnet, 50 magnet cap, 60 ball floats
70 standpipes, 71 openings, 72 rooms
73 magnetic reed switchs, 74 magnet, 75 ball floats
76 waterproof washers, 77 pressing plates, 78 loam cakes
100,100 ' liquid level sensor
101 electric wires
200 tanks, 300 control device
Embodiment
Below in conjunction with accompanying drawing the utility model is further described:
Fig. 3 to Fig. 6 is the synoptic diagram of the utility model liquid level sensor one embodiment.To shown in Figure 6, the utility model liquid level sensor 100 is arranged in the tank 200 as Fig. 3, and is electrically connected a control device 300 (being motor in the present embodiment) by two electric wires 101.Described liquid level sensor 100 comprises a pedestal 10, a magnetic reed switch 20, one microscler sleeve pipe 30, a magnet 40, a magnet cap 50 and a ball float 60; Described pedestal 10 and the microscler sleeve pipe 30 common bodies that constitute this liquid level sensor 100; Wherein:
Described pedestal 10 has a microscler tubing string 11 that is interconnected and enlarges a pipe 12 that is formed at these tubing string 11 tops with one.Seat pipe 12 tops are formed with an opening 12a, and these tubing string 11 outer walls are formed with two stopper sections 111, and tubing string 11 inside are formed with a room 13 that communicates with opening 12a; Magnetic reed switch 20 places room 13; Two electric wires 101 penetrate seat pipe 12 in regular turn and tubing string 11, two electric wires 101 2 ends are electrically connected magnetic reed switch 20 and control device 300 respectively.
In order to promote waterproof and moisture effect, the seat pipe 12 top end opening 12a places of present embodiment liquid level sensor 100 further plug establish a waterproof washer 14, and waterproof washer 14 is provided with two perforation 14a, and this waterproof washer 14 can be macromolecular material and makes, perhaps be the rubber material, but not as limit.Waterproof washer 14 pressing plate 15 of can further arranging in pairs or groups, this pressing plate 15 is pressed against on the waterproof washer 14, make waterproof washer 14 because of the extruding stress deformation, and sealing socket pipe 12 more closely, two perforation 14a of waterproof washer 14 only can stretch into liquid level sensor 100 inside for two electric wires 101, reach the purpose that is hedged off from the outer world.In addition, described pressing plate 15 and waterproof washer 14 loam cake 16 that is incorporated on the seat pipe 12 of also optionally arranging in pairs or groups, loam cake 16 is pressed against on pressing plate 15 and two electric wires 101, make 101 bendings of two electric wires pass, promote the tensile strength of this two electric wire 101, significantly reduce electric wire 101 because of the improper or contingent situation that opens circuit or damage when being subjected to external force because of carelessness and pullling, in addition, pressing plate 15 closely compresses waterproof washer 14, further promotes water proof, moisture effect.
Described microscler sleeve pipe 30 has a upper tube half 31 and the lower tube half 34 that one links.Upper tube half 31 is sheathed on the tubing string 11 of pedestal 10 movably, and lower tube half 32 is positioned at tubing string 11 belows.In the present embodiment, upper tube half 31 one-body molded upper sheet space 32 and the two transversely arranged fins 33 that two vertical arrangements are arranged, each upper sheet space 32 end extends outwardly and forms a hook part 321, two upper sheet spaces 32 fasten the magnet cap 50 of fixing a ccontaining magnet 40 by hook part 321, make magnet 40 be fixed in microscler sleeve pipe 30 peripheries.
The lower tube half 34 of described microscler sleeve pipe 30 has two lower sheet spaces 35 that are provided with relatively, and the end of each lower sheet space 35 extends outwardly respectively and forms a hook part 351, and ball float 60 is closely caught in described hook part 351; Being formed with two relative hollow-out parts 36, two hollow-out parts 36 between two lower sheet spaces 35 can stretch out for two stopper sections 111 of described pedestal 10, and can save material cost.
Be further described below in conjunction with the course of work of drawings and Examples the utility model liquid level sensor.
See also Fig. 5, when liquid level is in low-water level, because ball float 60 does not contact liquid level, so microscler sleeve pipe 30 is subjected to the effect of gravity, down landing is to the inconsistent position of its two fin 33 and two stopper sections 111, and at this moment, the position of magnet 40 is just over against magnetic reed switch 20, make magnetic reed switch 20 sense magnetic and keep unlatching (ON) state, and then trigger this control device 300 and keep and do not start (as: not drawing water).Otherwise, see also Fig. 6, when liquid level water level rises, this ball float 60 touches liquid level, and together rises along with liquid level with microscler sleeve pipe 30, at this moment, magnet 40 staggers with the position of magnetic reed switch 20, make magnetic reed switch 20 induction switch to and close (OFF) state, and then trigger this control device 300 and begin to start (as: beginning to draw water), reduce liquid level less than magnetic.
Certainly, waterproof washer 14 of the present utility model also can be provided with more than one, Fig. 7 is the sectional view of the waterproof washer of the utility model liquid level sensor when being two, as shown in Figure 7, two waterproof washers 14 ', 14 " go to upper and lower stacked; which is provided with a loam cake 16 ' and closely compress, so still can reach waterproof, moistureproof effect.
Fig. 8 is the sectional view of another embodiment of the utility model liquid level sensor, as shown in Figure 8, its body has a standpipe 70, these standpipe 70 tops have an opening 71, and form a room 72 in inside for ccontaining magnetic reed switch 73, the magnet 74 of present embodiment is incorporated into ball float 75 inside, and is sheathed on this standpipe 70 jointly along with the rising of liquid level or decline and moves.In addition, standpipe 70 openings 71 of present embodiment are similarly a waterproof washer 76, a pressing plate 77 and a loam cake 78 and fill in and establish, so prior art of comparing, also can save the program of perfusion colloid, effectively shorten the assembling operation time, and can utilize the characteristics of waterproof washer 76 stress deformations, finish assembling easily, save time conveniently, and therefore the tensile strength of two electric wires 101 also can promote.
Claims (11)
1. a liquid level sensor is arranged in the tank, and is electrically connected a control device by two electric wires,
It is characterized in that, comprising:
One body has an opening, and body interior is formed with a room that communicates with described opening;
One ball float is arranged on the body;
One magnet is arranged on the body;
One magnetic reed switch is arranged at the room inside of body;
At least one waterproof washer, plug are located at the opening of described body with the sealing room, and described waterproof washer has at least one perforation and wears for two electric wires, and two ends of described two electric wires are electrically connected with described control device and magnetic reed switch respectively.
2. liquid level sensor as claimed in claim 1 is characterized in that, described body comprises:
One pedestal comprises that a Guan Yuyi is incorporated into the tubing string of seat pipe below, and the opening of described body is opened in seat pipe top, and the room of body is arranged at tubing string inside, and this tubing string outer wall is formed with at least one stopper section;
One microscler sleeve pipe is sheathed on the pedestal movably, and can be inconsistent and by backstop with described stopper section, and microscler sleeve pipe has a upper tube half and the lower tube half that one links, and upper tube half is sheathed on the tubing string of pedestal, and lower tube half is positioned at below the tubing string;
Described ball float is connected with the lower tube half of microscler sleeve pipe;
Described magnet is arranged at the upper tube half periphery of microscler sleeve pipe;
Described magnetic reed switch is placed in the room of pedestal;
Described waterproof washer plug is located at the seat pipe top of pedestal.
3. liquid level sensor as claimed in claim 2 is characterized in that the lower tube half of described microscler sleeve pipe has at least one hollow-out parts, and this hollow-out parts is stretched out in described stopper section, and this microscler sleeve pipe can be inconsistent and by backstop with this stopper section.
4. liquid level sensor as claimed in claim 3 is characterized in that the lower tube half of described microscler sleeve pipe has two lower sheet spaces, and described hollow-out parts is opened between two lower sheet spaces, and the end of two lower sheet spaces colludes to this ball float.
5. liquid level sensor as claimed in claim 2 is characterized in that, comprises that also one is used for the magnet cap of ccontaining magnet, and the upper tube half of described microscler sleeve pipe has two upper sheet spaces, and described two upper sheet spaces fasten magnet cap.
6. liquid level sensor as claimed in claim 2 is characterized in that, described stopper section is from the outstanding relief block that forms of tubing string outer wall one.
7. liquid level sensor as claimed in claim 1 is characterized in that, also comprises a pressing plate, and described pressing plate closely is pressed against on the described waterproof washer, and can pass for described two electric wires.
8. liquid level sensor as claimed in claim 7 is characterized in that, also comprises a loam cake, closely is pressed against on described pressing plate and two electric wires.
9. liquid level sensor as claimed in claim 1 is characterized in that, described waterproof washer is that macromolecular material is made.
10. liquid level sensor as claimed in claim 1 is characterized in that, described waterproof washer is that rubber is made.
11. liquid level sensor as claimed in claim 1, it is characterized in that, described body has a standpipe, riser top ends forms the opening of body, the inner room that forms body, described magnet and ball float link, and both are sheathed on the described standpipe in synchronization-moving mode, and described waterproof washer plug is located at riser top ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200735996U CN201434715Y (en) | 2009-06-09 | 2009-06-09 | Liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200735996U CN201434715Y (en) | 2009-06-09 | 2009-06-09 | Liquid level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201434715Y true CN201434715Y (en) | 2010-03-31 |
Family
ID=42053526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200735996U Expired - Fee Related CN201434715Y (en) | 2009-06-09 | 2009-06-09 | Liquid level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201434715Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386017A (en) * | 2011-11-18 | 2012-03-21 | 上海合璧电子元件有限公司 | Electromagnetic type liquid level switch |
| CN102393759A (en) * | 2011-11-01 | 2012-03-28 | 威海戥同测试设备有限公司 | Float bowl spiraling type liquid level controller |
-
2009
- 2009-06-09 CN CN2009200735996U patent/CN201434715Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393759A (en) * | 2011-11-01 | 2012-03-28 | 威海戥同测试设备有限公司 | Float bowl spiraling type liquid level controller |
| CN102386017A (en) * | 2011-11-18 | 2012-03-21 | 上海合璧电子元件有限公司 | Electromagnetic type liquid level switch |
| CN102386017B (en) * | 2011-11-18 | 2013-12-11 | 上海合璧电子元件有限公司 | Electromagnetic type liquid level switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI HEBI ELECTRONIC COMPONENT CO., LTD. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100326 Address after: Anting town Jiading District Shanghai city 201805 Anxiao Road No. 318 Patentee after: Shanghai Hebi Electric Appliances Co., Ltd. Patentee after: Shanghai Hebi Electronic Co., Ltd. Address before: Anting town Jiading District Shanghai city 201805 Anxiao Road No. 318 Patentee before: Shanghai Hebi Electric Appliances Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100331 Termination date: 20120609 |