TWI724952B - Liquid dosing device and liquid dosing equipment - Google Patents

Abstract

A liquid quantitative device comprising: a suction component, a quantitative extraction component and a control component. The quantitative extraction component includes a liquid input pipeline, a quantitative pipe, a liquid recovery pipeline, an overflow sleeve and an output pipeline, and the quantitative pipe has a quantitative liquid storage Space, input port, overflow port and output port. The input port is connected to the quantitative liquid storage space and the liquid input pipeline. The overflow port and the output port are respectively located at the top and bottom of the quantitative liquid storage space, and the overflow sleeve is sleeved on the quantitative The periphery of the pipe has an overflow space and a recovery port. The overflow port is located in or above the overflow space. The suction member is arranged above the overflow port. The control member controls the suction member to suck and release liquid from the overflow port. The liquid dosing device of the present invention makes the liquid dosing fast and accurate, can be used for automation, and provides a liquid dosing device.

Description

Liquid dosing device and liquid dosing equipment

The present invention relates to a measuring device, and more particularly to a liquid metering device and liquid metering equipment.

Traditional measuring instruments, such as measuring cylinders, measuring cups or needles, are very particular about the operator's experience. It is usually judged visually whether the liquid contained in it reaches a certain scale, which is not accurate in quantification, and this type of measuring instrument cannot be automated.

Therefore, in order to solve various problems of the conventional measuring device, the present invention proposes a liquid metering device and a liquid metering device.

In order to achieve the above and other objectives, the present invention proposes a liquid metering device, which includes: a suction member; a certain amount of extraction member, including: a liquid input pipeline; a certain volume tube with a certain amount of liquid storage space and an input port , An overflow port and an output port, the input port is connected to the quantitative liquid storage space and the liquid input pipeline, the overflow port is located at the top of the quantitative liquid storage space, the output port is located at the bottom of the quantitative liquid storage space ; A liquid recovery pipeline; an overflow sleeve sleeved on the periphery of the quantitative tube, the overflow sleeve has an overflow space and a recovery port, the recovery port is connected to the overflow space and the liquid recovery pipe The overflow port is located in or above the overflow space; and an output pipeline including an output pipe connected to the output port and an output control valve arranged at the output port; and a control member, a signal Connect the output control valve and the suction member, the control member controls the opening and closing of the output control valve, wherein the suction member is arranged above the overflow port, and the control member controls the suction member to suck from the overflow port The liquid is controlled to release the liquid from the suction member, and the suction volume of the suction member at a time is greater than the volume of the quantitative liquid storage space.

In an embodiment of the present invention, the diameter of the overflow port is smaller than the average pipe diameter of the quantitative tube.

In an embodiment of the present invention, it further includes a liquid storage tank connected to the liquid input pipeline and the liquid recovery pipeline.

In an embodiment of the present invention, it further includes a pressure balance valve, the control member is signally connected to the pressure balance valve, the pressure balance valve is disposed in the liquid storage tank, and the control member controls the suction member to suck liquid and control the pressure The balance valve opens to balance the pressure in the reservoir.

In an embodiment of the present invention, an input control valve is further included, disposed at the liquid input port, and the input control valve signal is connected to the control member.

In an embodiment of the present invention, a one-way input valve is further included, which is arranged at the input port.

The present invention further provides a liquid metering device, which includes: the liquid metering device as described above, wherein the suction member and the quantitative extraction member are plural, and the volume of each quantitative liquid storage space is not equal; and a liquid storage tank connected to each The liquid input pipeline and each liquid recovery pipeline, wherein the control component is signally connected to the suction components, and the control component controls the selected suction component to suck and output liquid from the corresponding overflow.

In an embodiment of the present invention, a pressure balance valve is further included, the pressure balance valve is disposed in the liquid storage tank, the pressure balance valve is signally connected to the control member, and the control member controls the suction member to suck liquid and control the pressure The balance valve opens to balance the pressure in the reservoir.

In an embodiment of the present invention, a plurality of input control valves are further included, which are respectively arranged in each of the liquid input pipelines, and the input control valve signals are connected to the control member.

The present invention further provides a liquid metering device, which includes: the liquid metering device as described above, wherein the quantitative extraction component is plural, and the volume of each quantitative liquid storage space is not equal; a liquid storage tank is connected to each of the liquid input pipelines And each of the liquid recovery pipelines; and a moving component, wherein the control component signals the moving component and the suction component, the control component controls the moving component to move the suction component, so that the suction component moves to the selected quantitative tube Above the, the control component controls the suction component to suck and release the liquid from the selected overflow.

Thereby, the liquid dosing device and the liquid dosing device of the present invention can not only make the liquid dosing fast and accurate, but also do not waste liquid in the dosing process, and are suitable for automatic operation.

In order to fully understand the present invention, a detailed description of the present invention is given with the following specific embodiments and accompanying drawings. Those skilled in the art can understand the purpose, features and effects of the present invention from the content disclosed in this specification. It should be noted that the present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be based on different viewpoints and applications, and various modifications and changes can be made without departing from the spirit of the present invention. The following embodiments will further describe the related technical content of the present invention in detail, but the disclosed content is not intended to limit the scope of patent application of the present invention. The description is as follows:

As shown in FIG. 1, the liquid metering device 100 according to the embodiment of the present invention includes: a suction member 1, a certain amount extraction member 2 and a control member 4.

The suction member 1 is a member with liquid suction, and can suck and release liquid by reciprocating operation. The type of the suction member 1 can be, but is not limited to, the Republic of China Patent No. M591255 "Liquid Suction Device".

The quantitative extraction component 2 includes a liquid input pipe 21, a certain amount pipe 22, a liquid recovery pipe 23, an overflow sleeve 24 and an output pipe 25.

The liquid input pipeline 21 is connected to a liquid storage tank 3 for introducing liquid into the quantitative tube 22.

The quantitative tube 22 has a certain amount of liquid storage space 221, an input port 222, an overflow port 223 and an output port 224. The input port 222 communicates with the quantitative liquid storage space 221 and the liquid input pipeline 21, the overflow port 223 is located at the top of the quantitative liquid storage space 221, and the output port 224 is located at the bottom of the quantitative liquid storage space 221. Wherein, the volume of the quantitative liquid storage space 221 is known and measured, for example, 1 ml or 10 ml.

The overflow sleeve 24 is sleeved on the periphery of the quantitative tube 22, and the overflow sleeve 24 has an overflow space 241 and a recovery port 242. The overflow space 241 is located in the pipe wall of the overflow sleeve 24 and between the quantitative pipe 22. The recovery port 242 communicates with the overflow space 241 and the liquid recovery pipeline 23, and the overflow port 223 of the quantitative tube 22 is located in or above the overflow space 241. In this embodiment, the overflow port 223 is located in the overflow space 241 and the height of the overflow port 223 is flush with the upper opening 243 of the overflow space 241, but the present invention is not limited to this. The overflow port 223 may also be located above the overflow space 241, or the overflow port 223 may be located in the overflow space 241 and the height of the overflow port 223 is lower than the upper opening 243 of the overflow space 241. The design and shape of the overflow sleeve 24 are not limited to those shown in the figure.

The output pipeline 25 includes an output pipe 251 connected to the output port 224 and an output control valve 252 disposed at the output port 224.

The control component 4 signals the output control valve 252 and the suction component 1, and the control component 4 controls the opening and closing of the output control valve 252. The control member 4 is, for example, a control circuit or a control chip.

The suction member 1 is arranged above the overflow port 223, and the control member 4 controls the suction member 1 to suck liquid from the overflow port 223 and controls the suction member 1 to release liquid. The suction volume of the suction member 1 at a time is greater than the volume of the quantitative liquid storage space 221 .

Next, how to operate the liquid metering device 100 of the present invention will be explained.

First, as shown in Figure 2, the control member 4 allows the suction member 1 to pass through the upper opening 243 of the overflow space 241 (if the overflow opening 223 is located in the overflow space 241) and suck liquid from the overflow opening 223, because The quantitative liquid storage space 221 is in communication with the liquid storage tank 3 through the liquid input pipe 21, so the suction member 1 can absorb a liquid amount larger than the volume of the quantitative liquid storage space 221 at a time. At this time, the output control valve 252 is closed.

Then, as shown in Fig. 3, the suction member 1 is caused to release the liquid. After the liquid fills the quantitative liquid storage space 221, the excess liquid flows into the overflow space 241 of the overflow sleeve 24 according to gravity, and then follows the liquid. The recovery line 23 returns to the liquid storage tank 3.

Finally, as shown in FIG. 4, the control member 4 controls the output control valve 252 to open, so that the output pipe 251 communicates with the quantitative liquid storage space 221, and the quantitative liquid storage space 221 is stored by gravity or a suction device (not shown). The quantitative liquid is output through the output pipe 251. Then the control component 4 controls the output control valve 252 to close, and the next round of quantitative work can be continued.

Thereby, each time the suction member 1 is operated, the quantitative liquid storage space 221 of the quantitative tube 22 can be filled with quantitative liquid, ensuring that each quantitative can meet the standard, and the excess liquid can be recycled and reused. The invention can not only make the quantitative of liquid accurate and fast, but also does not waste liquid in the process, and is suitable for automatic operation.

Further, in this embodiment, the caliber of the overflow port 223 is smaller than the average tube diameter of the quantitative tube 22, so that the suction member 1 can accurately suck and inject liquid from the overflow port 223. However, the present invention is not limited to this.

Furthermore, in this embodiment, the liquid metering device 100 further includes the aforementioned liquid storage tank 3, which is connected to the liquid input pipeline 21 and the liquid recovery pipeline 23.

Furthermore, in this embodiment, as shown in FIGS. 1 to 3, the liquid metering device 100 further includes a pressure balance valve 5. The control member 4 is signally connected to the pressure balance valve 5, and the pressure balance valve 5 is disposed in the liquid storage tank 3. The control member 4 controls the suction member 1 to suck liquid at the same time (or before), and controls the pressure balance valve 5 to open to make the inside of the liquid storage tank 3 communicate with the outside to balance the pressure of the liquid storage tank 3; when it is not sucking or releasing Then the control pressure balance valve 5 is closed. The pressure balance valve 5 may be an electric control valve of various forms.

Furthermore, in this embodiment, the liquid metering device 100 further includes an input control valve 6 disposed at the input port 222, and the input control valve 6 is signally connected to the control member 4. When the control member 4 controls the suction member 1 to suck liquid, the control member 4 also controls the input control valve 6 to open so that the liquid storage tank 3 communicates with the quantitative liquid storage space 221; when the control member 4 controls the suction member 1 to release the liquid , The control member 4 also controls the input control valve 6 to close, so that the liquid storage tank 3 and the quantitative liquid storage space 221 are not connected, so that the liquid beyond the quantitative liquid storage space 221 can not be contained from the input port 222 and the liquid The input pipeline 21 flows back to the liquid storage tank 3 and can only overflow from the top overflow port 223 of the quantitative liquid storage space 221 to the overflow space 241. The control input control valve 6 may be an electric control valve of various forms.

In another example, the liquid dosing device 100 does not have the control input control valve 6, instead a one-way input valve is provided at the input port 222. The one-way input valve is a check valve, which only allows liquid to flow from the liquid storage tank 3 to the quantitative liquid storage space 221 in one direction, and does not allow liquid to flow back from the quantitative liquid storage space 221 back to the liquid storage tank 3. The one-way input valve may be a mechanical valve that is not signal-connected to the control member 4, or it may be an electronically controlled valve that is signal-connected to the control member 4.

Further, in another embodiment, the liquid metering device 100a may have a different shape of the suction member 1a. As shown in FIGS. 6 and 7, the suction member 1a is air-tightly inserted into the upper opening 243a of the overflow sleeve 24, and the suction member 1a is opposed to but not in contact with the overflow port 223a of the metering tube 22. The suction member 1a is a suction member. As shown in FIG. 6, when the suction member 1 a draws air, a vacuum inside the quantitative extraction member 2 is caused, and the liquid in the liquid storage tank 3 flows into the quantitative liquid storage space 221 through the liquid input pipeline. Since the suction volume of the suction member 1a at a time is greater than the volume of the quantitative liquid storage space 221, excess liquid flows into the overflow space 241 from the overflow port 223a.

Next, as shown in Figure 7, when the liquid is to be discharged, the control member 4 closes the input control valve 6 (or the input control valve 6 is replaced by a one-way input valve), and the suction member 1a is changed to the inside of the quantitative extraction member 2. The pressure is increased to output the liquid in the quantitative liquid storage space 221 through the output pipe 251, and the liquid in the overflow space 241 is recovered to the liquid storage tank 3 through the liquid recovery pipe 23. In one example, the output tube 251 is a narrow pipeline, and the liquid needs to be forced through the suction member 1a (the output control valve 252 is an unnecessary element at this time). In another example, the control member 4 opens the output control valve 252, and the liquid in the quantitative liquid storage space 221 passes through the output pipe 251 through the pressure of the suction member 1a, or gravity, or the suction device at the other end of the output pipe 251. Output. However, the present invention is not limited to this.

Furthermore, as shown in FIG. 5, the present invention further provides a liquid metering device 200, which includes: a suction member 1, a plurality of quantitative extraction members 2, a liquid storage tank 3, a moving member 7 and a control member 4.

In this embodiment, the volume of the quantitative liquid storage space 221 of the quantitative tube 22 of each of the plurality of quantitative extraction components 2 is not equal, for example, they can be 1 ml, 5 ml, and 10 ml, respectively, to combine to form the required target volume.

The liquid storage tank 3 is connected to the respective liquid input pipeline 21 and each liquid recovery pipeline 23 of each quantitative extraction component 2 to provide liquid and recover excess liquid.

The moving member 7 is, for example, a stepping motor, a servo motor, or a hydraulic press, a hydraulic press, etc., a power member capable of displacing an object, and the present invention is not limited thereto.

The control member 4 signals the connection between the moving member 7 and the suction member 1. The control member 4 controls the moving member 7 to move the suction member 1 so that the suction member 1 moves above the quantitative tube 22 of the selected quantitative extraction member 2; the control member 4 also controls the suction member 1 from the overflow port 223 of the selected quantitative tube 22 Absorb and release the liquid.

In this way, the liquid dosing device 200 can be automated and systematized to accurately and quickly obtain the target quantitative liquid. For example, to obtain 18 ml of quantitative liquid, the control member 4 controls the moving member 7 to move the suction member 1, so that the suction member 1 moves to the top of the 10 ml metering tube 22 to suck the released liquid to obtain 10 ml of liquid; then control the movement The member 7 moves the sucking member 1 to the 5 ml quantitative tube 22 to obtain 5 ml of liquid, and finally controls the sucking member 1 to move to the 1 ml quantitative tube 22, reciprocating three times to obtain 3 ml of liquid.

Furthermore, as shown in FIG. 8, the present invention further proposes a liquid quantitative device 300, which includes: a plurality of suction components 1 a, a plurality of quantitative extraction components 2, a liquid storage tank 3, and a control component 4.

The difference between the liquid dosing device 300 and the liquid dosing device 200 is that the moving member 7 is omitted, each suction member 1a is corresponding to each quantitative extraction member 2, and each suction member 1a is fixed in position and does not move.

The control member 4 controls the selected suction member 1a to suck and output liquid from the corresponding overflow.

In this way, the liquid dosing device 300 can be automated and systemized to accurately and quickly obtain the target quantitative liquid.

Furthermore, in this embodiment, the liquid dosing device 200 and the liquid dosing device 300 further include a plurality of the aforementioned input control valves 6, which are respectively disposed at each input port 222, and these input control valves 6 are signally connected to the control member 4.

The liquid dosing device 200 and the liquid dosing device 300 of the present invention may further include the aforementioned pressure balance valve 5, the control member 4 is signally connected to the pressure balance valve 5, and the pressure balance valve 5 is disposed in the liquid storage tank 3. The control member 4 controls the suction member 1 to suck liquid and controls the pressure balance valve 5 to open to balance the pressure of the liquid storage tank 3.

The present invention has been disclosed above with an embodiment, but those skilled in the art should understand that the embodiment is only used to describe the present invention and should not be construed as limiting the scope of the present invention. It should be noted that all changes and substitutions equivalent to this embodiment should be included in the scope of the present invention. Therefore, the protection scope of the present invention should be defined by the scope of the patent application.

100: Liquid dosing device 100a: Liquid dosing device 200: Liquid dosing equipment 300: Liquid dosing equipment 1: Absorb components 1a: Absorption component 2: Quantitative extraction of components 21: Liquid input pipeline 22: Loop 221: Quantitative liquid storage space 222: Input port 223: Overflow Port 223a: overflow 224: output port 23: Liquid recovery pipeline 24: overflow casing 241: Overflow Space 242: Recovery Port 243: upper opening 243a: upper opening 25: output pipeline 251: output tube 252: output control valve 3: Reservoir 4: control component 5: Pressure balance valve 6: Input control valve 7: Moving components

Fig. 1 is a schematic diagram of a liquid dosing device according to an embodiment of the present invention. Fig. 2 is a schematic diagram of the suction state of the liquid dosing device according to an embodiment of the present invention. Fig. 3 is a schematic diagram of the release state of the liquid dosing device according to an embodiment of the present invention. Fig. 4 is a schematic diagram of the output state of the liquid dosing device according to an embodiment of the present invention. Fig. 5 is a schematic diagram of a liquid dosing device according to an embodiment of the present invention. Fig. 6 is a schematic diagram of a suction state of a liquid dosing device according to another embodiment of the present invention. Fig. 7 is a schematic diagram of the output state of a liquid dosing device according to another embodiment of the present invention. Fig. 8 is a schematic diagram of a liquid dosing device according to another embodiment of the present invention.

100: Liquid dosing device

1: Absorb components

2: Quantitative extraction of components

21: Liquid input pipeline

22: Loop

221: Quantitative liquid storage space

222: Input port

223: Overflow Port

224: output port

23: Liquid recovery pipeline

24: overflow casing

241: Overflow Space

242: Recovery Port

243: upper opening

25: output pipeline

251: output tube

252: output control valve

3: Reservoir

4: control component

5: Pressure balance valve

6: Input control valve

Claims (10)

A liquid dosing device, which comprises: A suction component; A certain amount of extraction components, including: A liquid input pipeline; A quantitative tube with a certain amount of liquid storage space, an input port, an overflow port and an output port, the input port is connected to the quantitative liquid storage space and the liquid input pipeline, and the overflow port is located in the quantitative liquid storage space The output port is located at the bottom of the quantitative liquid storage space; A liquid recovery pipeline; An overflow sleeve is sleeved on the periphery of the quantitative pipe. The overflow sleeve has an overflow space and a recovery port. The recovery port communicates with the overflow space and the liquid recovery pipeline. The overflow port is located at In or above the overflow space; and An output pipeline, including an output pipe connected to the output port and an output control valve arranged at the output port; and A control component, signaled to connect the output control valve and the suction component, the control component controls the opening and closing of the output control valve, Wherein, the suction member is arranged above the overflow opening, the control member controls the suction member to suck liquid from the overflow opening and controls the suction member to release the liquid, and the suction amount of the suction member is greater than that of the quantitative liquid storage space. Volume. The liquid metering device according to claim 1, wherein the caliber of the overflow port is smaller than the average tube diameter of the metering tube. The liquid dosing device according to claim 1, further comprising a liquid storage tank connected with the liquid input pipeline and the liquid recovery pipeline. The liquid metering device according to claim 3, further comprising a pressure balance valve, the control member is signally connected to the pressure balance valve, the pressure balance valve is arranged in the liquid storage tank, and the control member controls the suction member to suck liquid and control The pressure balance valve is opened to balance the pressure of the liquid storage tank. The liquid dosing device according to claim 4, further comprising an input control valve disposed at the input port, and the input control valve signal is connected to the control member. The liquid dosing device according to claim 1, further comprising a one-way input valve arranged at the input port. A liquid dosing device, which includes: The liquid quantitative device according to claim 1, wherein the suction member and the quantitative extraction member are plural, and the volume of each quantitative liquid storage space is not equal; and A liquid storage tank connected to each of the liquid input pipelines and each of the liquid recovery pipelines, The control component is signally connected to the suction components, and the control component controls the selected suction component to suck and output liquid from the corresponding overflow. The liquid dosing device according to claim 7, further comprising a pressure balance valve, the pressure balance valve is arranged in the liquid storage tank, the pressure balance valve signal is connected to the control member, the control member controls the suction member to suck liquid and control The pressure balance valve is opened to balance the pressure of the liquid storage tank. The liquid metering device according to claim 7, further comprising a plurality of input control valves, which are respectively arranged in each liquid input pipeline, and the input control valve signals are connected to the control member. A liquid dosing device, which includes: The liquid quantitative device according to claim 1, wherein the quantitative extraction member is plural, and the volume of each quantitative liquid storage space is not equal; A liquid storage tank connected to each of the liquid input pipelines and each of the liquid recovery pipelines; and A moving component, Wherein the control member signal connects the moving member and the suction member, the control member controls the moving member to move the suction member so that the suction member moves to the top of the selected quantitative tube, and the control member controls the suction member from the selected The overflow sucks and releases liquid.

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