CN214149513U - Liquid level detection device - Google Patents
Liquid level detection device Download PDFInfo
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- CN214149513U CN214149513U CN202023173193.0U CN202023173193U CN214149513U CN 214149513 U CN214149513 U CN 214149513U CN 202023173193 U CN202023173193 U CN 202023173193U CN 214149513 U CN214149513 U CN 214149513U
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Abstract
The utility model discloses a liquid level detection device, include: the liquid distribution mechanism comprises a liquid distribution area, a medicine pumping pipe and a medicine pumping pump for enabling the medicine pumping pipe to pump medicine from the liquid distribution area, one end of the medicine pumping pipe is communicated with the bottom of the liquid distribution area, and the other end of the medicine pumping pipe is communicated with the working groove; the liquid level mechanism comprises a water inlet pipe and a water inlet valve arranged on the water inlet pipe; the liquid level mechanism also comprises at least one dosing pipe for dosing the liquid distribution area and a dosing valve arranged on the dosing pipe; the sensing mechanism comprises a guide rod arranged on the upper part of the liquid distribution area in a penetrating way and a floating ball arranged on the guide rod in a penetrating way and capable of moving along the guide rod; and the control device is electrically connected with the floating ball, the water inlet valve and the dosing valve respectively. The utility model discloses do not need artifical adjustment floater just can realize having saved the human cost to the detection of liquid level at whole liquid level detection in-process, a level gauge just can detect the countless liquid level, can read the liquid level at any position and accomplish and dispense, simple structure, the cost is lower.
Description
Technical Field
The utility model relates to a detection area, specificly a liquid level detection device.
Background
The liquid level detection device can detect the liquid level in the liquid distribution mechanism. The existing liquid level detection device comprises a liquid distribution mechanism and a floating ball which is positioned in the liquid distribution mechanism and can be fixed in position. When carrying out the liquid level detection, need artificially to adjust the floater position according to the liquid level, and the floater at this moment can not change along with the liquid medicine liquid level change, and a level gauge can only detect the liquid level of a numerical value, so how many liquid levels need detect and just need to join in marriage how many level gauges, lead to the structure complicacy, with high costs.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the embodiment of the utility model provides a liquid level detection device, it is used for solving the above-mentioned structure complicacy, problem with high costs.
The embodiment of the application discloses: a liquid level detection device comprising: the liquid distribution mechanism comprises a liquid distribution area, a medicine pumping pipe and a medicine pumping pump for enabling the medicine pumping pipe to pump medicine from the liquid distribution area, one end of the medicine pumping pipe is communicated with the bottom of the liquid distribution area, and the other end of the medicine pumping pipe is communicated with the working groove; the liquid level mechanism comprises a water inlet pipe for adding water to the liquid distribution area and a water inlet valve arranged on the water inlet pipe; the liquid level mechanism also comprises at least one dosing pipe for dosing the liquid distribution area and a dosing valve arranged on the dosing pipe; the sensing mechanism comprises a guide rod arranged on the upper part of the liquid distribution area in a penetrating way and a floating ball arranged on the guide rod in a penetrating way and capable of moving along the guide rod; and the control device is electrically connected with the floating ball, the water inlet valve and the dosing valve respectively.
Further, the medicine extracting pipe is communicated with a return pipeline at the upper part of the liquid distribution area.
Furthermore, pneumatic valves are arranged on the return pipeline and one end of the medicine pumping pipe close to the working groove.
Further, the liquid distribution area is positioned in the liquid distribution barrel.
Furthermore, the water inlet pipe and the dosing pipe are both communicated with the upper part of the liquid distribution area.
Furthermore, each medicine feeding pipe is communicated with a liquid storage tank for storing different medicine liquids.
Further, the floating ball transmits different electric signals to the control device at the height of each liquid level, and the control device controls the water adding pipe to add water and each medicine adding pipe to add medicine to the corresponding set liquid level according to the different electric signals of the floating ball.
The utility model has the advantages as follows:
1. when adding or drawing the liquid medicine to joining in marriage the liquid district, the floater can reciprocate along with the liquid level change, does not need artifical adjustment floater just can realize having saved the human cost to the detection of liquid level at whole liquid level testing in-process, and a level gauge just can detect the numerous liquid level, can read the liquid level in any position and accomplish and dispense, simple structure, and the cost is lower.
2. The water adding, medicine adding and liquid level protecting are realized in the continuous movement process of the floating ball, the height of each liquid level can be set at will in the control program, and the types of the water adding, the medicine adding and the liquid level protecting can also be set in the control program, so that the effects of adding various liquid medicines into the liquid distribution area and preparing the liquid medicines with any concentration are realized. In addition, the whole liquid level detection device can be protected by arranging the protection liquid level.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a liquid level detecting device according to an embodiment of the present invention;
reference numerals of the above figures: 1. a liquid distribution area; 2. a medicine pumping pipe; 3. pumping medicine; 4. a water inlet pipe; 5. a water inlet valve; 6. a medicine feeding pipe; 7. a dosing valve; 71. a first dosing valve; 72. a second dosing valve; 73. a third dosing valve; 8. a guide bar; 9. a floating ball; 10. a control device; 11. a working groove; 12. a pneumatic valve; 13. and (4) a return pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the liquid level detecting apparatus of the present embodiment includes:
the liquid distribution mechanism can comprise a liquid distribution area 1, a medicine pumping pipe 2 and a medicine pumping pump 3 for pumping medicine from the liquid distribution area 1 by the medicine pumping pipe 2. The dispensing area 1 may be located in a dispensing container to provide a location for dispensing a medical fluid. One end of the medicine extracting pipe 2 can be communicated with the lower part of the liquid distribution area 1, so that the liquid medicine at the low liquid level in the liquid distribution area 1 can be extracted by the medicine extracting pipe 2. Of course, the communication position of the medicine pumping tube 2 and the liquid distribution area 1 can be adjusted according to actual needs. The other end of the medicine extracting pipe 2 can be communicated with the working groove 11, so that the medicine liquid extracted from the medicine extracting pipe 2 can be conveyed to the working groove 11 of the PCB wet processing procedure, and the subsequent medicine liquid is convenient to use to carry out the PCB wet processing procedure. The medicine pumping pipe 2 can be connected with a medicine pumping pump, so that the medicine pumping pipe 2 is provided with the medicine pumping power.
The liquid level mechanism can comprise a water inlet pipe 4 and at least one dosing pipe 6. One end of the water inlet pipe 4 can be communicated with the liquid distribution area 1, so that water can be added into the liquid distribution area 1 to play a role in diluting liquid medicine. The water inlet valve 5 can be installed on the water inlet pipe 4, and the control effect of the water adding amount in the water inlet pipe 4 is achieved. One end of the dosing tube 6 may be in communication with the liquid distribution region 1, and the other end of the dosing tube 6 may be in communication with a reservoir (not shown) in which a high concentration liquid medicine is stored. Therefore, the medicine adding pipe 6 can add the high-concentration liquid medicine in the liquid storage tank into the liquid preparation area 1, and the function of increasing the concentration and the liquid medicine amount of the liquid medicine in the liquid preparation area 1 is achieved. The medicine adding pipe 6 can be provided with a medicine adding valve 7, so that the control effect of the medicine adding amount in the medicine adding pipe 6 is realized.
The sensing mechanism can comprise a guide rod 8 and a floating ball 9 arranged on the guide rod 8 in a penetrating mode, and the floating ball 9 can move along the guide rod 8. The guide rod 8 may be arranged in the upper part of the liquid distribution region 1 and partly in the liquid distribution region 1. The guide bar 8 may be vertically disposed so that the float 9 may move in a vertical direction along the guide of the guide bar 8. Of course, the guide rod 8 may be arranged at other angles that are not parallel to the liquid surface.
The control device 10, the control device 10 and the floating ball 9, the water inlet valve 5 and the dosing valve 7 are electrically connected. The control device 10 can receive the liquid level signal transmitted by the floating ball 9 and control the opening and closing degree of the water inlet valve 5 and the dosing valve 7 by transmitting electric signals. The control device 10 may be arranged outside the liquid distribution region 1. Of course, the installation position of the control device 10 can be adjusted according to actual needs.
In an alternative embodiment, the float 9 drops with the liquid level when the liquid level drops. The floating ball 9 transmits a descending electric signal to the control device 10, and the control device 10 transmits an electric signal to the water inlet valve 5 and the dosing valve 7 and controls the water inlet valve 5 and the dosing valve 7 to be opened. So that the water in the water inlet pipe 4 and the high-concentration liquid medicine in the medicine adding pipe 6 enter the liquid distribution area 1 according to a certain proportion to promote the liquid level to rise. In the process of liquid level rising, the floating ball 9 rises along with the liquid level. The floating ball 9 transmits the rising electrical signal to the control device 10, and the control device 10 transmits the electrical signal to the water inlet valve 5 and the dosing valve 7 and controls the opening and closing degrees of the water inlet valve 5 and the dosing valve 7 to be gradually reduced. When the floating ball 9 rises to the alarm liquid level along with the liquid medicine, the water inlet valve 5 and the medicine adding valve 7 are completely closed, so that the liquid medicine is re-prepared in the liquid preparation area 1. The medicine liquid in the liquid distribution area 1 is pumped into the medicine pumping pipe 2 by the medicine pumping pump 3, and then is conveyed into the PCB wet process working tank 11, and the PCB wet process is carried out by using the medicine liquid.
Borrow by above-mentioned structure, when adding or drawing the liquid medicine to joining in marriage liquid district 1, floater 9 can reciprocate along with the liquid level change, does not need artifical adjustment floater 9 just can realize the detection to the liquid level in whole liquid level detection process, has saved the human cost, and a level gauge just can detect countless liquid level, can read the liquid level in any position and accomplish and dispense, simple structure, and the cost is lower.
Specifically, the drug pumping tube 2 is communicated with a return pipeline 13 at the upper part of the liquid distribution area 1, so that the drug solution pumped by the drug pumping pump 3 from the drug pumping tube 2 can partially return to the liquid distribution area 1. Because the liquid medicine in the medicine extracting pipe 2 flows back to the liquid preparation area 1 from the upper part of the liquid preparation area 1, the liquid medicine in the liquid preparation area 1 can be stirred, so that the liquid medicine in the liquid preparation area 1 is more uniform in the preparation process, and the quality of the prepared liquid medicine is improved.
In a preferred embodiment, pneumatic valves 12 may be provided on both the return line 13 and the end of the withdrawal string 2 adjacent to the working channel 11. The pneumatic valve 12 on the return line 13 can be used to adjust the return rate of the liquid in the return line 13. Thereby, the effect of adjusting the stirring speed of the liquid medicine in the liquid distribution section 1 can be achieved by adjusting the air-operated valve 12 in the return pipe 13. The pneumatic valve 12 on the drug-extracting pipe 2 can be used for adjusting the speed of the liquid medicine flowing into the working tank 11.
Specifically, join in marriage liquid district 1 and can be located and join in marriage the liquid bucket for the in-process of preparing the liquid medicine, the liquid medicine can be deposited in joining in marriage the liquid bucket all the time, prevents that the liquid medicine from taking place to spill over and the condition emergence of liquid medicine in joining in marriage liquid district 1 is influenced to outside impurity. Join in marriage the liquid bucket and can be for inside hollow cylinder, and the below of joining in marriage the liquid bucket can be the plane to make and join in marriage the liquid bucket and can place on the bottom surface, make and join in marriage the liquid bucket and have stronger practicality. Of course, the shape of the liquid distribution barrel can be adjusted according to actual needs.
Specifically, the water inlet pipe 4 and the dosing pipe 6 can both be communicated with the upper part of the liquid distribution area 1. When water is added into the liquid distribution area 1 through the water inlet pipe 4 or high-concentration liquid medicine is added into the liquid distribution area 1 through the medicine adding pipe 6, the high-concentration liquid medicine can be added into the liquid distribution area 1 from the upper part of the liquid distribution area 1. So that the liquid medicine in the liquid distribution area 1 can be prevented from flowing back to the water inlet pipe 4 or the liquid adding pipe.
Specifically, each dosing tube 6 may be in communication with a reservoir for storing a different liquid medicament. So that different medicine adding pipes 6 can add different high-concentration liquid medicines into the liquid distribution area 1.
In a preferred embodiment, the floating ball transmits different electric signals to the control device at the height of each liquid level, and the control device controls the water adding pipe to add water and each medicine adding pipe to add medicine to the corresponding set liquid level according to the different electric signals of the floating ball.
In this embodiment, as shown in fig. 1, the liquid distribution region 1 sequentially includes a dry operation protection liquid level, a low liquid level protection liquid level, a water adding liquid level, a first medicine adding liquid level, a second medicine adding liquid level, a third medicine adding liquid level, and a high liquid level protection liquid level from top to bottom.
The medicine adding valve 7 comprises a first medicine adding valve 71, a second medicine adding valve 72 and a third medicine adding valve 73. The floating ball 9 can continuously give a liquid level signal in real time, and the floating ball 9 floats to which position to transmit the signal of which liquid level to the control device 10. When the dosage is started, the control device 10 automatically opens the water inlet valve 5 to start water adding, and when the dosage is added to the water adding liquid level, the control device 10 receives a signal transmitted by the floating ball 9 and transmits the signal to the water inlet valve 5, so that the water inlet pipe 4 stops adding water. Then, the first medicine adding valve 71 is opened, and the first medicine adding valve 71 is closed after the medicine adding liquid reaches the first medicine adding liquid level. Then, the second medicine adding valve 72 is opened, and the second medicine adding valve 72 is closed after the liquid medicine is added to the second medicine adding liquid level. Then, the third medicine adding valve 73 is opened, and the third medicine adding valve 73 is closed after the medicine adding liquid reaches the third medicine adding liquid level. After the water inlet valve 5 and the medicine adding valve 7 are closed, the medicine pumping pump 3 can be opened, the pneumatic valve 12 on the medicine pumping pipe 2 is closed, and the pneumatic valve 12 on the return pipeline 13 is opened, so that the liquid medicine in the liquid distribution area 1 flows back to the liquid distribution area 1 through the medicine pumping pipe 2 and the return pipeline 13, the effect of the liquid medicine in the liquid distribution area 1 is circularly stirred, and the medicine distribution is completed. Then, the pneumatic valve 12 on the drug-extracting tube 2 can be opened and the pneumatic valve 12 on the return line 13 can be closed, and the prepared drug solution can be pumped out to the working tank 11 for use.
In addition, a plurality of protection liquid levels such as dry running, low liquid level, high liquid level, etc. may be set, and the control device 10 receives a signal when the liquid level reaches the protection liquid level, and takes different actions according to the received signal program. When a signal of the dry operation liquid level is received, the circulating pumping is stopped; receiving a low liquid level signal, opening the water inlet valve 5; receiving the high liquid level signal, the water inlet valve 5 is closed and cannot be opened.
By means of the structure, the water adding, medicine adding and liquid level protecting are realized in the continuous movement process of the floating ball 9, the liquid level heights can be set at will in the control program, and the types of the water adding, medicine adding and liquid level protecting can also be set in the control program, so that the effects of adding various liquid medicines into the liquid distribution area 1 and preparing liquid medicines with any concentration are realized. In addition, the whole liquid level detection device can be protected by arranging the protection liquid level.
The present invention has been explained by using specific embodiments, and the explanation of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (7)
1. A liquid level detection device, comprising:
the liquid distribution mechanism comprises a liquid distribution area, a medicine pumping pipe and a medicine pumping pump for enabling the medicine pumping pipe to pump medicine from the liquid distribution area, one end of the medicine pumping pipe is communicated with the bottom of the liquid distribution area, and the other end of the medicine pumping pipe is communicated with the working groove;
the liquid level mechanism comprises a water inlet pipe and a water inlet valve, wherein the water inlet pipe is used for adding water to the liquid distribution area, and the water inlet valve is arranged on the water inlet pipe; the liquid level mechanism also comprises at least one dosing pipe for dosing the liquid distribution area and a dosing valve arranged on the dosing pipe;
the sensing mechanism comprises a guide rod arranged on the upper part of the liquid distribution area in a penetrating way and a floating ball arranged on the guide rod in a penetrating way and capable of moving along the guide rod;
and the control device is electrically connected with the floating ball, the water inlet valve and the dosing valve respectively.
2. The fluid level detection apparatus of claim 1, wherein the drug withdrawal tube is in communication with a return conduit in communication with an upper portion of the fluid distribution section.
3. The apparatus of claim 2, wherein pneumatic valves are disposed on the return conduit and on an end of the withdrawal string adjacent to the working tank.
4. The fluid level detection apparatus of claim 1, wherein the dispensing region is located in a dispensing barrel.
5. The apparatus of claim 1, wherein the inlet tube and the dosing tube are both in communication with an upper portion of the dispensing region.
6. The apparatus of claim 1, wherein each of the dosing tubes is in communication with a reservoir for storing a different medical fluid.
7. The apparatus of claim 6, wherein the float ball transmits different electrical signals to the control device at different levels, and the control device controls the water inlet pipe and the dosing pipes to feed water to the corresponding set levels according to the different electrical signals of the float ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023173193.0U CN214149513U (en) | 2020-12-24 | 2020-12-24 | Liquid level detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023173193.0U CN214149513U (en) | 2020-12-24 | 2020-12-24 | Liquid level detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214149513U true CN214149513U (en) | 2021-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023173193.0U Active CN214149513U (en) | 2020-12-24 | 2020-12-24 | Liquid level detection device |
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| Country | Link |
|---|---|
| CN (1) | CN214149513U (en) |
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2020
- 2020-12-24 CN CN202023173193.0U patent/CN214149513U/en active Active
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