CN201707112U - Liquid level probe - Google Patents
Liquid level probe Download PDFInfo
- Publication number
- CN201707112U CN201707112U CN2010201927375U CN201020192737U CN201707112U CN 201707112 U CN201707112 U CN 201707112U CN 2010201927375 U CN2010201927375 U CN 2010201927375U CN 201020192737 U CN201020192737 U CN 201020192737U CN 201707112 U CN201707112 U CN 201707112U
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- liquid
- liquid level
- magnetic induction
- induction switch
- level
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Abstract
The utility model discloses a liquid level probe, which comprises a main body (2), a liquid level-sensing part (1) and an indicating alarm part (3); the liquid level-sensing part (1) and the indicating alarm part (3) are respectively arranged on both ends of the main body (2); the liquid level-sensing part (1) comprises a sensing cylinder (12) and a floating ring (11) sleeved on the sensing cylinder (12); a magnetic body is arranged in the floating ring (11), and a magnetic induction switch is arranged in the sensing cylinder (12); and when the magnetic induction switch is at a first state, the indicating alarm part (3) gives the alarm. Since the utility model adds the indicating alarm part, when the magnetic induction switch is at a certain state, the indicating alarm part can give the alarm. By changing the position of the floating ring, the magnetic induction switch can be at the state to check whether the indicating alarm part can give the alarm, and thereby whether the liquid level probe is reliable or not can be judged. A worker can conveniently and timely check and replace the liquid level probe, the reliable control of liquid level can ensure the quality of products, equipment, such as heating tubes and a pump, can be timely and effectively protected, and the possibility of the occurrence of safety accidents can be reduced.
Description
Technical field
The utility model relates to the liquid level sensor technical field, more particularly, relates to a kind of liquid-level probe.
Background technology
At printed circuit board (Printed Circuit Board, PCB) the wet method equipment in the processing procedure has a lot of dippers (soup cylinder), tank etc., crosses the low or too high danger such as leakage, heating dry combustion method and pumping dry tap that cause in order to prevent these liquid in interpolation, heating, circulation time liquid level; Or, generally all can in these dippers (soup cylinder), tank, liquid-level probe be installed in order to realize the automatic interpolation control function of soup, monitor or control the liquid level of liquid bath.
Present existing technology adopts the liquid-level probe of mechanical type and induction type dual mode usually.The principle of work of mechanical type liquid-level probe is to utilize liquid buoyancy to make the two flat spring contact chips contact in the liquid-level probe or break away to export to turn-off or closed signal.The principle of work of induction type liquid level probe is, the floating ring that has magnetic utilizes buoyancy of liquid, when floating ring is sensed the magnetic induction switch of fixed position, and the closed signal of magnetic induction switch output, otherwise the signal that magnetic induction switch output is turn-offed.
The characteristics of mechanical type liquid-level probe be make simple, applied range, shortcoming is because spring leaf is adopted in main contact, spring leaf pine or too tightly all can cause the liquid level protection to lose efficacy or respond to insensitive too when using.The characteristics of induction type liquid level probe are that induction is sensitive.
But, more than two kinds of liquid-level probes all need to be increased in the outside electric control system, just can reach monitoring, control the function of liquid level and liquid level warning.When line failure that liquid-level probe and electrical system link; liquid level protection and control will be out of control; especially often relate to acid, caustic corrosion liquid and high temperature firing equipment in PCB produces, the liquid level protection will cause security incidents such as dangerous chemical leakage, personnel's injury, fire once lose efficacy.The reliability of liquid level protection is in this particular importance that seems, in order to reach the purpose of safety in production, a lot of factories all can prevent that security incident from taking place to these dangerous matter sources time-based maintenance and check.
In addition, in the process of producing, personnel can't in time check the quality of liquid-level probe.When if liquid level control design of electrical system is unreasonable, under the situation that liquid-level probe circuit broken string system does not have to report to the police, will cause the accident.
The utility model content
In view of this, the utility model provides a kind of liquid-level probe, to realize conveniently detecting its reliability.
For achieving the above object, the utility model provides following technical scheme:
A kind of liquid-level probe comprises main body and liquid level induction part that is separately positioned on described main body two ends and indication warning portion;
Described liquid level induction part specifically comprises induction post and the floating ring that is set on the described induction post;
The inside of described floating ring is provided with magnetic, and the inside of described induction post is provided with magnetic induction switch;
When described magnetic induction switch was in first state, described indication warning portion reported to the police.
Preferably, in the above-mentioned liquid-level probe, described floating ring is the floating ring with acid and alkali-resistance and refractory surfaces;
Described induction post is the induction post with acid and alkali-resistance and refractory surfaces.
Preferably, in the above-mentioned liquid-level probe, described indication warning portion specifically comprises the first fluid level condition pilot lamp, control device and buzzer siren;
When described control device was sensed described magnetic induction switch and is in first state, it was bright to control the described first fluid level condition pilot lamp, and controlled described buzzer siren and report to the police.
Preferably, in the above-mentioned liquid-level probe, described indication warning portion also comprises the second fluid level condition pilot lamp;
When described control device was sensed described magnetic induction switch and is in second state, it was bright to control the described second fluid level condition pilot lamp.
Preferably, in the above-mentioned liquid-level probe, described first fluid level condition pilot lamp and the described second fluid level condition pilot lamp are light emitting diode.
Preferably, in the above-mentioned liquid-level probe, described main body is the column structure of boring.
From above-mentioned technical scheme as can be seen, the utility model embodiment makes when magnetic induction switch is in a certain state that by having added indication warning portion indication warning portion reports to the police.Can make magnetic induction switch be in this state by changing the position of floating ring, check whether indication warning portion can report to the police, thereby judge whether this liquid-level probe is reliable.The utility model has been strengthened the reliability of liquid-level probe, convenient monitoring its quality and current fluid level condition.Make things convenient for personnel in time to check in time and change, the reliable control of liquid level can guarantee the quality of product, protects equipment such as heating tube, pumping timely and effectively, has reduced the possibility that security incident takes place.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the liquid-level probe that Fig. 1 provides for the utility model embodiment;
The structural representation of the liquid level induction part that Fig. 2 provides for the utility model embodiment.
Embodiment
The utility model provides a kind of liquid-level probe, to realize conveniently detecting its reliability.
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 1, the structural representation of the liquid level induction part that the structural representation of the liquid-level probe that Fig. 2, Fig. 1 provide for the utility model embodiment, Fig. 2 provide for the utility model embodiment.
1 is the liquid level induction part, and 2 is main body, and 3 are indication warning portion, and 31 is the first fluid level condition pilot lamp, and 32 is buzzer siren, and 33 is power lead, and 11 is floating ring, and 12 are the induction post.
The liquid-level probe that the utility model provides comprises main body 2 and liquid level induction part 1 that is separately positioned on the main body two ends and indication warning portion 3.Wherein, liquid level induction part 1 specifically comprises induction post 12 and the floating ring 11 that is set on this induction post 12.Floating ring 11 has certain buoyancy, above can guaranteeing to swim in being placed on water or in other solution.The inside of floating ring 11 be provided with magnetic or within it the surface be coated with magnetisable material, the inside of induction post 12 is provided with magnetic induction switch, when magnetic induction switch was in first state, indication warning portion 3 reported to the police.The on-off principle of magnetic induction switch is for when floating ring 11 is sensed the magnetic induction switch of fixed position, and magnetic induction switch is exported the signal of ON (closure), on the contrary the signal of magnetic induction switch output OFF (disconnection).
Wherein, magnetic induction switch has the closed and disconnected two states, and indication warning portion 3 reports to the police and can report to the police or expiry notification people's liquid level by sound or light has reached critical altitude by sound or light.Critical altitude herein can be the higher limit or the lower limit of liquid level.
Liquid level for fear of solution drops to below the lower limit, can the liquid-level probe that the utility model provides be set at the corresponding liquid level of this lower limit place, guarantees that magnetic induction switch is positioned at this liquid level place.Magnetic induction switch is arranged on the lower position of responding to post, and when guaranteeing that floating ring 11 is not subjected to buoyancy and drops to extreme lower position, floating ring 11 can be sensed magnetic induction switch, the signal of magnetic induction switch output ON.When the liquid level of solution was higher than the liquid level of this lower limit, floating ring 11 swam on the liquid level of solution and the magnetic induction switch in the vertical direction keeps at a certain distance away, the signal of magnetic induction switch output OFF, and indication warning portion 3 does not report to the police; When the liquid level of solution reached the liquid level of this lower limit, floating ring 11 was sensed the magnetic induction switch of fixed position, the signal of magnetic induction switch output ON, and indication warning portion 3 reports to the police.
Also magnetic induction switch can be arranged on the higher position of induction post, when guaranteeing that floating ring 11 floats to the extreme higher position, floating ring 11 can be sensed magnetic induction switch, the signal of magnetic induction switch output ON.When the liquid level of solution was higher than the liquid level of this lower limit, floating ring 11 swam on the liquid level of solution, and floating ring 11 is sensed the magnetic induction switch of fixed position, the signal of magnetic induction switch output ON, and indication warning portion 3 reports to the police.When the liquid level of solution was lower than the liquid level of this lower limit, floating ring 11 and magnetic induction switch in the vertical direction kept at a certain distance away, the signal of magnetic induction switch output OFF, and indication warning portion 3 stops to report to the police.
The report to the police change of two states of the warning and stop of the utility model by indication warning portion 3 reaches and notifies staff's liquid level of solution to reach extreme position.
Liquid level for fear of solution is raised to more than the higher limit, can the liquid-level probe that the utility model provides be set at the corresponding liquid level of this higher limit place, guarantees that magnetic induction switch is positioned at this liquid level place.Magnetic induction switch is arranged on the lower position of responding to post, and when guaranteeing that floating ring 11 is not subjected to buoyancy and drops to extreme lower position, floating ring 11 can be sensed magnetic induction switch, the signal of magnetic induction switch output ON.When the liquid level of solution was lower than the liquid level of this higher limit, floating ring 11 was sensed the magnetic induction switch of fixed position, the signal of magnetic induction switch output ON, and indication warning portion 3 reports to the police.When the liquid level of solution reached the liquid level of this higher limit, floating ring 11 swam on the liquid level of solution and the magnetic induction switch in the vertical direction keeps at a certain distance away, the signal of magnetic induction switch output OFF, and indication warning portion 3 does not report to the police;
Also magnetic induction switch can be arranged on the higher position of induction post, when guaranteeing that floating ring 11 floats to the extreme higher position, floating ring 11 can be sensed magnetic induction switch, the signal of magnetic induction switch output ON.When the liquid level of solution was lower than the liquid level of this higher limit, floating ring 11 and magnetic induction switch in the vertical direction kept at a certain distance away, the signal of magnetic induction switch output OFF, and indication warning portion 3 does not report to the police.When the liquid level of solution was higher than the liquid level of this higher limit, floating ring 11 swam on the liquid level of solution, and floating ring 11 is sensed the magnetic induction switch of fixed position, the signal of magnetic induction switch output ON, and indication warning portion 3 reports to the police.
In like manner, the report to the police change of two states of the warning and stop of the utility model by indication warning portion 3 reaches and notifies staff's liquid level of solution to reach extreme position.
In sum, the utility model embodiment makes when magnetic induction switch is in a certain state that by having added indication warning portion 3 indication warning portion 3 reports to the police.Can make magnetic induction switch be in this state by changing the position of floating ring 11, check whether indication warning portion can report to the police, thereby judge whether this liquid-level probe is reliable.The utility model has been strengthened the reliability of liquid-level probe, convenient monitoring its quality and current fluid level condition.Make things convenient for personnel in time to check in time and change, the reliable control of liquid level can guarantee the quality of product, protects equipment such as heating tube, pumping timely and effectively, has reduced the possibility that security incident takes place.
The floating ring of floating ring 11 for having acid and alkali-resistance and refractory surfaces that the utility model provides, induction post 12 is the induction post with acid and alkali-resistance and refractory surfaces.Because liquid-level probe is used in acid-base solution or the pyrosol mostly, be that acid and alkali-resistance and resistant to elevated temperatures material make with the surface that induction post 12 contacts with solution so need floating ring 11.
The indication warning portion that the utility model provides specifically comprises the first fluid level condition pilot lamp 31, control device and buzzer siren 32.When control device was sensed magnetic induction switch and is in first state (can also can be off-state for closure state), it was bright to control the described first fluid level condition pilot lamp 31, and controlled described buzzer siren 32 and report to the police.
Preferably, the indication warning portion 3 that the utility model provides also comprises the second fluid level condition pilot lamp, and when control device was sensed described magnetic induction switch and is in second state, it was bright to control the described second fluid level condition pilot lamp.By the second fluid level condition pilot lamp being set, the convenient quality of checking this liquid-level probe.No matter when which kind of state magnetic induction switch be in, all there is the fluid level condition pilot lamp bright.When having lamp all not work, this liquid-level probe is the liquid-level probe of damage more, need overhaul or change.Wherein, the first fluid level condition pilot lamp and the described second fluid level condition pilot lamp are light emitting diode.The light emitting diode energy loss is little, can reach purpose of power saving.
The main body 2 that the utility model provides is the column structure of boring.The signal wire of liquid level induction part is hollow to warning portion terminals in main body.The utility model has three power leads, and first power lead and second source line are two signal wires of liquid-level probe, and wherein the second source line is the common ground wire of 0V, and the 3rd power lead is the power lead of indication warning portion, forms the loop with the second source line.
Principle of work of the present utility model is: the floating ring of liquid-level probe indicates warning portion to gather the signal of liquid level induction part according to the height transmitting switch amount signal of the liquid level control system to needs simultaneously, and when signal ON, the first fluid level condition pilot lamp is bright; When signal OFF, the second fluid level condition pilot lamp bright (can be according to the difference of electrical design demand, it is open type or closed type that liquid-level probe is set).When the second fluid level condition pilot lamp is bright, buzzer siren generation alarm sound, the prompting liquid level is too low or too high.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (6)
1. a liquid-level probe is characterized in that, comprises liquid level induction part (1), main body (2) and indication warning portion (3), and wherein, described liquid level induction part (1) and indication warning portion (3) are separately positioned on the two ends of described main body (2);
Described liquid level induction part (1) specifically comprises induction post (12) and is set in floating ring (11) on the described induction post (12);
The inside of described floating ring (11) is provided with magnetic, and the inside of described induction post (12) is provided with magnetic induction switch;
When described magnetic induction switch was in first state, described indication warning portion (3) reported to the police.
2. liquid-level probe as claimed in claim 1 is characterized in that, the floating ring of described floating ring (11) for having acid and alkali-resistance and refractory surfaces;
The induction post of described induction post (12) for having acid and alkali-resistance and refractory surfaces.
3. liquid-level probe as claimed in claim 1 or 2 is characterized in that, described indication warning portion (3) specifically comprises the first fluid level condition pilot lamp (31), control device and buzzer siren (32);
When described control device was sensed described magnetic induction switch and is in first state, it was bright to control the described first fluid level condition pilot lamp, and controlled described buzzer siren and report to the police.
4. liquid-level probe as claimed in claim 3 is characterized in that, described indication warning portion also comprises the second fluid level condition pilot lamp;
When described control device was sensed described magnetic induction switch and is in second state, it was bright to control the described second fluid level condition pilot lamp.
5. liquid-level probe as claimed in claim 4 is characterized in that, described first fluid level condition pilot lamp and the described second fluid level condition pilot lamp are light emitting diode.
6. liquid-level probe as claimed in claim 1 is characterized in that, described main body is the column structure of boring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201927375U CN201707112U (en) | 2010-05-13 | 2010-05-13 | Liquid level probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201927375U CN201707112U (en) | 2010-05-13 | 2010-05-13 | Liquid level probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201707112U true CN201707112U (en) | 2011-01-12 |
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ID=43444275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201927375U Expired - Fee Related CN201707112U (en) | 2010-05-13 | 2010-05-13 | Liquid level probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201707112U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564522A (en) * | 2010-12-16 | 2012-07-11 | 上海宝钢工业检测公司 | Electrode floating type hybrid liquid indicator group with self-diagnosis function |
| CN102749127A (en) * | 2012-07-23 | 2012-10-24 | 宁夏鲁西化工化肥有限公司 | Liquid level monitoring device of phosphoric acid extraction tank |
-
2010
- 2010-05-13 CN CN2010201927375U patent/CN201707112U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564522A (en) * | 2010-12-16 | 2012-07-11 | 上海宝钢工业检测公司 | Electrode floating type hybrid liquid indicator group with self-diagnosis function |
| CN102564522B (en) * | 2010-12-16 | 2016-01-13 | 上海宝钢工业检测公司 | With the electrode floating type hybrid liquid level gauge group of self-diagnostic function |
| CN102749127A (en) * | 2012-07-23 | 2012-10-24 | 宁夏鲁西化工化肥有限公司 | Liquid level monitoring device of phosphoric acid extraction tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20130513 |