CN202511849U - Low water level detector - Google Patents
Low water level detector Download PDFInfo
- Publication number
- CN202511849U CN202511849U CN2012201107303U CN201220110730U CN202511849U CN 202511849 U CN202511849 U CN 202511849U CN 2012201107303 U CN2012201107303 U CN 2012201107303U CN 201220110730 U CN201220110730 U CN 201220110730U CN 202511849 U CN202511849 U CN 202511849U
- Authority
- CN
- China
- Prior art keywords
- water level
- low
- control circuit
- permanent magnet
- sleeve pipe
- 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
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Abstract
The utility model relates to a low water level detector which comprises a shell. A water inlet is arranged at the bottom end of the shell, the shell further comprises a bushing, a magnetic-sensitive Hall device, a permanent magnet and a control circuit, wherein the magnetic-sensitive Hall device is arranged in the bushing, the permanent magnet is sleeved on the outer wall of the bushing, and the control circuit is connected with an electric signal output end of the magnetic-sensitive Hall device. The magnetic field nearby the magnetic-sensitive Hall device is changed by vertical movement of the permanent magnet, the magnetic-sensitive Hall device can detect the changed magnetic field and transform the changed magnetic field into electric signals to be outputted to the control circuit, and the control circuit transforms the electric signals into digital display signals and outputs the digital display signals. The low water level detector is simple in structure, can automatically display water level difference in real time only by being placed in water to be detected, and is high in water level difference sensing accuracy and suitable for monitoring the water level and water level return difference in a low water level environment.
Description
Technical field
The utility model relates to Level monitor, is specially a kind of low-water level detecting device.
Background technology
At present, be to judge the height of water level according to scale mostly to the monitoring device of water level through naked eyes, calculate the return difference of water level according to the scale value at water level place.But under the environment of low-water level (below the 30mm); Like places such as basement, tunnel and cable ducts,, be difficult to read the scale of water level conversion through classic method because the water level conversion is little; Thereby can't make accurate judgement to the variation of water level, influence is to the monitoring of water level.
Summary of the invention
The purpose of the utility model provides a kind of low-water level detecting device with regard to being to overcome the deficiency of above-mentioned prior art; The permanent magnet induction hall device of this watch-dog through fluctuating with the water surface; Thereby send the Hall voltage relevant with fluctuation in stage; Through showing with digital signal after the processing of circuit, realize that accurately the height of level monitoring changes at last.
Realize that the technical scheme that the utility model purpose adopts is: a kind of low-water level detecting device comprises that the bottom has the shell body of water inlet, also comprises in the said housing:
Sleeve pipe;
Magnetosensitive sense hall device is located in the said sleeve pipe;
Control circuit is connected with the electrical signal of said magnetosensitive sense hall device, and being used for said electrical signal conversion is digital displaying signal; And
Permanent magnet, it is placed in the outer wall of said sleeve pipe, moves up and down along sleeve pipe with the up-down of water level.
Further, this low-water level detecting device also comprises:
Floating type excitation body is placed in the outer wall of said sleeve pipe, is positioned at the below of said permanent magnet.
Further, said floating type excitation body is connected with said permanent magnet is integrated.
Also comprise spacing card in the above-mentioned low-water level detecting device, the below that it is positioned at said floating type excitation body is enclosed within the periphery of said sleeve pipe, is used to prevent that said floating type excitation body from coming off from casing shoe.
In technique scheme, the top of said shell body is provided with gland bonnet.
Said gland bonnet is provided with water level indicator light, and this water level indicator light is connected with said control circuit.
The course of work of the utility model is: floating type excitation body fluctuates with the up-down of water level; Thereby driving permanent magnet moves up and down along sleeve pipe; The moving up and down of permanent magnet makes near the magnetic field the magnetosensitive sense hall device change, and magnetosensitive sense hall device detects the magnetic field of this variation, and changes the magnetic field that changes into electric signal and export control circuit to; Control circuit exports this electrical signal conversion to water level indicator light for the mathematics shows signal, shows the variable quantity of water level.
The utility model is simple in structure, during use, only needs this low-water level detecting device is placed water to be measured, can show water-head automatically real-time, and high to the induction degree of accuracy of the difference of water level, is suitable in the low-water level environment monitoring to water level height and liquid level return difference.
Description of drawings
Fig. 1 is the structural representation of the utility model low-water level detecting device;
Among the figure, 1-sensor cable, 2-gland bonnet, 3-water level indicator light, 4-control circuit, 5-shell body, 6-circuit pallet, 7-sleeve pipe, 8-magnetosensitive sense hall device, 9-permanent magnet, the floating type excitation body of 10-, the spacing card of 11-.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.
Low-water level detecting device as shown in Figure 1; Comprise that the top that the bottom has the shell body 5 of water inlet, a shell body 5 is provided with gland bonnet 2; The inside of shell body 5 is provided with sleeve pipe 7; Be provided with magnetosensitive sense hall device 8 in the sleeve pipe 7, the electrical signal of magnetosensitive sense hall device 8 is connected with control circuit 4 through sensor cable 1, and communicates by letter with external device through sensor cable 1 and to be connected.The output terminal of control circuit 4 is connected with water level indicator light 3, and this water level indicator light 3 is located on the gland bonnet 2.The outside on sleeve pipe 7 tops is provided with circuit pallet 6, is used for the support to circuit controller 4.The outer wall of sleeve pipe 7 lower ends is with permanent magnet 9; Directly contact for fear of permanent magnet 9 with the water surface; Below permanent magnet 9, be provided with floating type excitation body 10; Floating type excitation body 10 also is placed in the outer wall of sleeve pipe, and permanent magnet 9 places on the floating type excitation body 10, and permanent magnet 9 also can directly connect as one with floating type excitation body 10.In order to prevent that floating type excitation body 10 from coming off from the bottom of sleeve pipe 7; A spacing card 11 is set below floating type excitation body 10; Spacing card 11 also is enclosed within the periphery of sleeve pipe 7, in the present embodiment diameter of spacing card 11 greater than the aperture of floating type excitation body 10, therefore when decline of water table arrive spacing card below 11 after; Floating type excitation body 10 falls on the spacing card 11, can not come off from pipe box 7.
When floating type excitation body 10 moves up and down with water level, to do along sleeve pipe 7 and move up and down thereby drive permanent magnet 9, moving up and down of permanent magnet 9 can produce changes of magnetic field, and water-head is corresponding with the variation residual quantity in magnetic field.After magnetosensitive sense hall device 8 monitors the magnetic field of variation, the variation residual quantity in this magnetic field is converted into electric signal exports control circuit 4 to, control circuit 4 is converted into digital displaying signal with this electric signal and exports water level indicator light 3 to and show, promptly demonstrates water-head.
Claims (8)
1. a low-water level detecting device comprises that the bottom has the shell body of water inlet, it is characterized in that, also comprises in the said housing:
Sleeve pipe;
Magnetosensitive sense hall device is located in the said sleeve pipe;
Control circuit is connected with the Hall voltage output terminal of said magnetosensitive sense hall device, is used for converting said Hall voltage into digital displaying signal; And
Permanent magnet, it is placed in the outer wall of said sleeve pipe, moves up and down along sleeve pipe with the up-down of water level.
2. low-water level detecting device according to claim 1 is characterized in that, also comprises:
Floating type excitation body is placed in the outer wall of said sleeve pipe, is positioned at the below of said permanent magnet.
3. low-water level detecting device according to claim 2 is characterized in that: said floating type excitation body is connected with said permanent magnet is integrated.
4. according to claim 1 or 2 or 3 described low-water level detecting devices, it is characterized in that, also comprise:
Spacing card is positioned at the below of said floating type excitation body, and the periphery that it is enclosed within said sleeve pipe is used to prevent that said floating type excitation body from coming off from casing shoe.
5. according to each described low-water level detecting device of claim 1～3, it is characterized in that: the top of said shell body is provided with gland bonnet.
6. low-water level detecting device according to claim 5 is characterized in that: said gland bonnet is provided with water level indicator light, and this water level indicator light is connected with said control circuit.
7. low-water level detecting device according to claim 4 is characterized in that: the top of said shell body is provided with gland bonnet.
8. low-water level detecting device according to claim 7 is characterized in that: said gland bonnet is provided with water level indicator light, and this water level indicator light is connected with said control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201107303U CN202511849U (en) | 2012-03-22 | 2012-03-22 | Low water level detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201107303U CN202511849U (en) | 2012-03-22 | 2012-03-22 | Low water level detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202511849U true CN202511849U (en) | 2012-10-31 |
Family
ID=47064328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201107303U Expired - Fee Related CN202511849U (en) | 2012-03-22 | 2012-03-22 | Low water level detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202511849U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035363A (en) * | 2017-06-21 | 2017-08-11 | 西南石油大学 | Position finding and detection method after a kind of Horizontal well casing centering device tripping in |
| CN107074209A (en) * | 2014-11-05 | 2017-08-18 | 李揆汉 | It is attached with the cleaning fluid electric-motor pump of level sensor |
-
2012
- 2012-03-22 CN CN2012201107303U patent/CN202511849U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107074209A (en) * | 2014-11-05 | 2017-08-18 | 李揆汉 | It is attached with the cleaning fluid electric-motor pump of level sensor |
| CN107035363A (en) * | 2017-06-21 | 2017-08-11 | 西南石油大学 | Position finding and detection method after a kind of Horizontal well casing centering device tripping in |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170714 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Wuchang, Hubei Friendship Road, No. A, block, floor 999, 15 Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20190322 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |