Electric dispensing dosing device

Abstract

The present invention relates to an electric dispensing quantitative device, which is used to connect two ports of a flow channel to quantitatively distribute liquid, wherein the electric dispensing quantitative device comprises: a fixed upper plate, provided with a plurality of first holes, the fixed upper plate is used to connect with one port of the flow channel; a fixed lower plate, which is arranged on one end face of the fixed upper plate and connected to the fixed upper plate, the fixed lower plate is provided with a plurality of second holes, and the plurality of second holes are arranged correspondingly to the plurality of first holes, the fixed lower plate is used to connect with the other port of the flow channel; a quantitative rotor, which is arranged between the fixed upper plate and the fixed lower plate, and the quantitative rotor rotates around the axis of the fixed upper plate and the fixed lower plate, the quantitative rotor is provided with a plurality of quantitative holes with different apertures, and the capacity of the plurality of quantitative holes corresponds to the quantitative distribution volume of the liquid; and a driving motor, which is connected to the quantitative rotor. The electric dispensing quantitative device of the present invention uses a cutting method to quickly complete the quantitative determination of the liquid, with a fast quantitative speed and high quantitative accuracy.

Description

Technical Field

[0001] The invention relates to a metering pump, in particular to an electric metering device for accurate metering and multi-mode distribution of trace liquids. Background Art

[0002] In fluid control systems, system design is becoming more and more intelligent, micro-quantified, and requires higher and higher quantitative accuracy. The quantitative methods in traditional fluid control systems are volume quantitative method or flow time control quantitative method.

[0003] The structure used in the volumetric quantitative method is a syringe pump, and its quantitative method is to indirectly quantify by driving the plunger in the syringe through a motor. Therefore, the quantitative accuracy of the volumetric quantitative method is affected by the motor movement, motor control program, and structures such as the lead screw, resulting in low quantitative accuracy and slow quantitative speed. In addition, other components such as solenoid valves are required to complete the quantitative distribution function, resulting in a complex structure and high cost.

[0004] The flow time control quantification method completes liquid quantification by controlling the length of time that a constant flow fluid flows. This method requires stable fluid flow and precise time control to ensure accuracy. It is an indirect quantification method and needs to be connected to a specific distribution system during its distribution, resulting in a complex structure and low quantitative accuracy.

[0005] Since the quantitative value level of the fluid control system in the prior art has developed from the original milliliter level to the microliter level, or even smaller, the above-mentioned traditional fluid control system can no longer meet the needs of the prior art. Therefore, there is an urgent need for a device with a simple structure, high quantitative accuracy and quantitative distribution function. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide an electric dispensing quantitative device to solve the above technical problems. The specific technical solution is as follows: an electric dispensing quantitative device is provided, which is used to connect the two ports of the flow channel to quantitatively distribute the liquid, wherein the electric dispensing quantitative device comprises: a fixed upper plate, which is provided with a plurality of first holes, and the fixed upper plate is used to connect with one port of the flow channel; a fixed lower plate, which is arranged on one end surface of the fixed upper plate and connected to the fixed upper plate, and the fixed lower plate is provided with a plurality of second holes, and the plurality of second holes are arranged correspondingly to the plurality of first holes, and the fixed lower plate is used to connect with the other port of the flow channel; a quantitative rotor is arranged between the fixed upper plate and The quantitative rotor is arranged between the fixed lower plates, and the quantitative rotor rotates around the axis of the fixed upper plate and the fixed lower plate, and the quantitative rotor is provided with a plurality of quantitative holes with different apertures, and the capacity of the plurality of quantitative holes corresponds to the quantitative distribution volume of the liquid; and a driving motor is connected to the quantitative rotor, and the driving motor drives the quantitative rotor to rotate, and connects at least one first hole and the corresponding at least one second hole through at least one quantitative hole to form a channel, and the liquid flows into the quantitative hole through at least one first hole or at least one second hole, and the driving motor drives the quantitative rotor to rotate and cuts off the connection between at least one first hole and the corresponding at least one second hole, and the liquid in the quantitative hole is used for quantitative distribution.

[0007] In one possible design, multiple first holes are arranged at equal intervals along the circumferential direction of the fixed upper plate; and / or multiple second holes are arranged at equal intervals along the circumferential direction of the fixed lower plate; and / or multiple quantitative holes are arranged at equal intervals along the circumferential direction of the quantitative rotor.

[0008] In one possible design, the number of the plurality of first holes is six; and / or the number of the plurality of second holes is six; and / or the number of the plurality of quantitative holes is six.

[0009] In a possible design, the multiple first holes are through-hole structures, with openings at both ends respectively located at the upper and lower ends of the fixed upper plate, and a first thread is provided in the opening at the upper end of the fixed upper plate for connecting with one end of the flow channel.

[0010] In a possible design, the multiple second holes are through-hole structures, with openings at both ends respectively located at the upper end and the side of the fixed lower plate, and the opening located on the side of the fixed lower plate is provided with a second thread for connecting with the other end of the flow channel.

[0011] In a possible design, the plurality of second holes are an “L”-shaped through-hole structure.

[0012] In a possible design, a groove is provided at the lower end of the fixed upper plate, and the quantitative rotor is arranged in the groove.

[0013] In a possible design, a third hole is further provided in the middle of the fixed lower plate, and the output shaft of the driving motor passes through the third hole and is connected to the quantitative rotor.

[0014] In a possible design, the material of the metering rotor is ceramic.

[0015] In a possible design, the plurality of metering holes are vertical through-hole structures penetrating through both end surfaces of the metering rotor.

[0016] In a possible design, the electric dispensing and dosing device further includes a plurality of pipes for communication between the plurality of first holes and communication between the corresponding plurality of second holes, so that the channels form a multi-channel mode.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] 1. The electric dispensing quantitative device of the present invention uses a cutting method to quickly complete the quantitative distribution of liquid, that is, the motor rotates a certain angle to drive the quantitative rotor to rotate, cut off the connection between the first hole and the second hole, and quantitatively distribute the liquid through the quantitative hole. Due to the fast rotation speed of the motor, the quantitative distribution of the liquid can be completed quickly with high quantitative accuracy;

[0019] 2. The capacity of the quantitative hole of the present invention corresponds to the quantitative distribution volume of the liquid. Since the capacity of the quantitative hole is the thickness of the quantitative rotor multiplied by the area of ​​the quantitative hole, the quantitative hole can be made into a micro quantitative hole according to the processing technology of the prior art. Therefore, the quantitative volume of the present invention can be as small as 0.1 microliter, and the quantitative measurement is more accurate;

[0020] 3. The electric quantitative dispensing device of the present invention also includes a plurality of pipes. Through different connection methods between the plurality of pipes and the plurality of first holes and the plurality of second holes, quantitative dispensing of a liquid in various volumes can be achieved simultaneously, and quantitative dispensing of different liquids can also be achieved simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described with reference to the accompanying drawings, but the contents in the accompanying drawings do not constitute any limitation to the present invention.

[0022] Figure 1 It is a schematic diagram of the structure of an electric quantitative dispensing device according to an embodiment of the present invention.

[0023] Figure 2 It is a schematic diagram of the structure explosion of an electric dispensing quantitative device according to an embodiment of the present invention.

[0024] Figure 3 It is a schematic structural diagram of a fixed upper sheet according to an embodiment of the present invention.

[0025] Figure 4 It is a schematic structural diagram of a fixed lower sheet according to an embodiment of the present invention.

[0026] Figure 5 It is a schematic structural diagram of a quantitative rotor according to an embodiment of the present invention.

[0027] Figure 6 It is a structural schematic diagram of a quantitative rotor according to an embodiment of the present invention for quantitatively measuring a volume of a liquid.

[0028] Figure 7 It is a schematic structural diagram of a quantitative rotor for quantitatively measuring two volumes of liquid according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The terms “first”, “second”, etc. used in this document do not specifically refer to an order or sequence, nor are they used to limit this application. They are merely used to distinguish components or operations described with the same technical terms.

[0030] like Figure 1-5 As shown, in one embodiment of the present invention, an electric dispensing quantitative device 1 is disclosed, which is used to connect the two ports 7 and 8 of the flow channel to quantitatively distribute the liquid. The electric dispensing quantitative device 1 includes a fixed upper plate 2, a fixed lower plate 3, a quantitative rotor 4 and a driving motor 5, wherein:

[0031] The fixed upper plate 2 is provided with a plurality of first holes 21, please refer to Figure 2 , 3 As shown, the number of the multiple first holes 21 disclosed in this embodiment is six, but it is not limited thereto. Those skilled in the art can set a corresponding number of first holes 21 according to actual needs, and the fixed upper plate 2 is used to connect with a port 7 of the flow channel. The specific connection method is that at least one first hole 21 is connected to a port 7 corresponding to a flow channel.

[0032] In a preferred embodiment, a plurality of first holes 21 are arranged at equal intervals along the circumferential direction of the fixed upper plate 2. The six first holes 21 disclosed in this embodiment are arranged at equal intervals along the circumferential direction of the fixed upper plate 2 so that they can be connected to the port of the flow channel through any one or more first holes 21.

[0033] In a preferred embodiment, the plurality of first holes 21 are through-hole structures, and the openings at both ends are respectively located at the upper and lower ends of the fixed upper plate 2, so that they penetrate the fixed upper plate 2. The preferred first holes 21 are vertical through-hole structures to facilitate their production and manufacturing. In addition, the first holes 21 are located in the opening at the upper end of the fixed upper plate 2 and are provided with first threads 22, so that the first holes 21 are screwed with a port 7 of the flow channel through the first threads 22 to facilitate installation and disassembly.

[0034] In a preferred embodiment, please refer to Figure 3As shown, a groove 23 is further provided at the lower end of the fixed upper plate 2, and the groove 23 and the fixed lower plate 3 form an accommodating space for placing the quantitative rotor 4, and the height of the accommodating space, that is, the depth of the groove, is the same as the thickness of the quantitative rotor 4 to prevent leakage when the first hole 21 and the second hole 31 are connected and liquid is injected.

[0035] The fixed lower sheet 3 is arranged on one end surface of the fixed upper sheet 2 and connected to the fixed upper sheet 2. Figure 1 As shown, the fixed lower plate 3 is provided with a plurality of second holes 31, and the plurality of second holes 31 are arranged correspondingly to the plurality of first holes 21, please refer to Figure 4 As shown, the number of the plurality of second holes 31 disclosed in this embodiment is six, and the six second holes 22 are arranged in a one-to-one correspondence with the six first holes 21, but this is not limited thereto, and those skilled in the art can arrange a corresponding number of second holes 21 according to actual needs. The fixed lower sheet 3 is used to connect with another port 8 of the flow channel, and the specific connection method is that at least one second hole 31 is connected to another port 8 corresponding to one flow channel.

[0036] In a preferred embodiment, a plurality of second holes 31 are arranged at equal intervals along the circumferential direction of the fixed lower plate 3. The six second holes 31 disclosed in this embodiment are arranged at equal intervals along the circumferential direction of the fixed lower plate 3 so that they can be connected to the port of the flow channel through any one or more first holes 21.

[0037] In a preferred embodiment, the plurality of second holes 31 are through hole structures, and the openings at both ends thereof are respectively located at the upper end and the side of the fixed lower plate 3. One end opening of the second hole 31 is arranged on the side to facilitate connection with the flow channel. The preferred second hole 31 is an "L"-shaped through hole structure, and the opening located on the side of the fixed lower plate 3 is provided with a second thread 32, so that the second hole 31 is screwed with the other port 8 of the flow channel through the second thread 32 to facilitate installation and disassembly.

[0038] In a preferred embodiment, please refer to Figure 4 As shown, a third hole 33 is further provided in the middle of the fixed lower plate 3 , and the output shaft of the driving motor 5 passes through the lower end of the fixed lower plate 3 and extends into the groove 23 to be connected with the quantitative rotor 4 .

[0039] The quantitative rotor 4 is arranged between the fixed upper plate 2 and the fixed lower plate 3. Figure 2 , 5As shown, the quantitative rotor 4 disclosed in this embodiment is arranged on the fixed lower plate 3 and is located in the groove 23. The quantitative rotor 4 rotates about the axis of the fixed upper plate 2 and the fixed lower plate 3. The quantitative rotor 4 is provided with a plurality of quantitative holes 41 of different apertures. The capacity of the plurality of quantitative holes 41 corresponds to the quantitative distribution volume of the liquid. Preferably, the capacity of one quantitative hole 41 corresponds to one quantitative distribution volume. The number of the plurality of quantitative holes 41 disclosed in this embodiment is six, and the six quantitative holes 41 are arranged in a one-to-one correspondence with the six first holes 21 and the six second holes 31, but it is not limited thereto. Those skilled in the art can set a corresponding number of quantitative holes 41 according to actual needs.

[0040] In a preferred embodiment, a plurality of metering holes 41 are arranged at equal intervals along the circumferential direction of the metering rotor 4. The six metering holes 41 disclosed in this embodiment are arranged at equal intervals along the circumferential direction of the metering rotor 4, so that when the metering rotor 4 rotates to one of the metering holes 41 so that one of the first holes 21 is connected to the corresponding second hole 31, the remaining metering holes 41 will be connected to the remaining first holes 21 and the corresponding second holes 31 to facilitate the control of the drive motor.

[0041] In a preferred embodiment, the plurality of metering holes 41 are vertical through-hole structures penetrating the two end faces of the metering rotor 4, so that when the metering rotor 4 rotates, its two ends can be connected to the first hole 21 and the second hole 31 respectively, and the metering holes 41 are vertical through-hole structures, which can also facilitate the calculation of the capacity of the liquid that can be accommodated, which is the thickness of the metering rotor 4 multiplied by the area of ​​the metering holes 41. According to the processing technology of the prior art, the metering holes can be made into micro-metering holes, so the minimum quantitative volume of the present invention can reach 0.1 microliters, and the quantitative measurement is more accurate.

[0042] In a preferred embodiment, the material of the quantitative rotor 4 is ceramic, but the material of the quantitative rotor 4 is not limited thereto, and those skilled in the art can select other suitable materials according to the teachings of the present invention.

[0043] The driving motor 5 is connected to the quantitative rotor 4, please refer to Figure 1 , 2 As shown, the driving motor 5 drives the quantitative rotor 4 to rotate, and connects at least one first hole 21 and the corresponding at least one second hole 31 with at least one quantitative hole 41 to form a channel. The liquid flows into the quantitative hole 41 through at least one first hole 21 or at least one second hole 31. The driving motor 5 drives the quantitative rotor 4 to rotate and cuts off the connection between at least one first hole 21 and the corresponding at least one second hole 31. The liquid in the quantitative hole 41 is used for quantitative distribution.

[0044] In a preferred embodiment, please refer to Figure 6As shown, when the present invention quantifies a volume of liquid, a first hole 21 and a corresponding second hole 31 are selected to be connected to the two ends 7 and 8 of the flow channel respectively, and the driving motor 5 drives the quantitative rotor 4 to rotate, so that the quantitative hole 41 corresponding to the required quantitative distribution volume is transferred to between the first hole 21 and the second hole 31 and the first hole 21 and the second hole 31 are connected, and the liquid flows into the first hole 21 and flows out of the second hole 31 through the quantitative hole 41, or the liquid flows into the second hole 31 and flows out of the first hole 21 through the quantitative hole 41, and the driving motor 5 drives the quantitative rotor 4 to rotate and cut off the connection between the first hole 21 and the corresponding second hole 31, the volume of the liquid in the quantitative hole 41 is the required quantitative distribution volume, and the liquid in the quantitative hole 41 is used for quantitative distribution, but the use of the present invention is not limited to this, and those skilled in the art can select other suitable connection methods according to the teachings of the present invention to achieve simultaneous quantitative distribution of multi-channel liquids, for example, select multiple first holes 21 and multiple second holes 31 corresponding to them to connect the two ends of the multi-channel liquid respectively, and achieve simultaneous quantitative distribution of the multi-channel liquid in the above manner.

[0045] In a preferred embodiment, the electric dispensing and dosing device 1 further includes a plurality of pipes 6 for connecting the plurality of first holes 21 and the corresponding plurality of second holes 31 so that the channels form a multi-channel mode for dosing various volumes of liquid.

[0046] In a preferred embodiment, please refer to Figure 7 As shown, the present invention is explained by taking the quantitative measurement of two volumes of a liquid flow channel as an example. The specific quantitative connection method is: select two first holes 21 to be connected to the two ends 7 and 8 of the flow channel respectively, and at the same time, connect the two second holes 31 corresponding to the two first holes 21 through the pipeline 6, and drive the quantitative rotor 4 to rotate with the driving motor 5, so that the two quantitative holes 41 corresponding to the two volumes required for quantitative distribution are transferred to between the two first holes 21 and the two second holes 31, and the two first holes 21 are connected with the two second holes 31, and the liquid flows into one of the first holes 21 and flows through one quantitative hole 41 from the corresponding second hole 31. The liquid flows out of the hole 31, and then flows into another second hole 31 through the pipe 6, and at the same time flows out of the other first hole 21 through another quantitative hole 41. The driving motor 5 drives the quantitative rotor 4 to rotate and cuts off the connection between the two first holes 21 and the corresponding two second holes 31. The volume of the liquid in the two quantitative holes 41 is the two volumes required for quantitative distribution, and the liquid in the two quantitative holes 41 is used for quantitative distribution. However, the use of the present invention for quantitative distribution of multiple volumes is not limited to this. Those skilled in the art can select multiple pipes 6 for connection in other ways according to the teachings of the present invention to achieve simultaneous quantitative distribution of multi-channel liquids.

[0047] The above description shows and describes several preferred embodiments of the present invention, but as mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art shall not depart from the spirit and scope of the present invention, and shall be within the scope of protection of the claims attached to the present invention.

Claims

1. An electric quantitative distribution device, used to connect two ports of a flow channel to quantitatively distribute liquid, characterized in that: The electric dispensing quantitative device comprises: A fixed upper plate is provided with a plurality of first holes, and the fixed upper plate is used to connect with a port of the flow channel; A fixed lower sheet, arranged on one end surface of the fixed upper sheet and connected to the fixed upper sheet, the fixed lower sheet is provided with a plurality of second holes, and the plurality of second holes are arranged correspondingly to the plurality of first holes, and the fixed lower sheet is used to connect with another port of the flow channel; A quantitative rotor is disposed between the fixed upper plate and the fixed lower plate, and the quantitative rotor rotates about the axis of the fixed upper plate and the fixed lower plate, and the quantitative rotor is provided with a plurality of quantitative holes with different apertures, and the capacity of the plurality of quantitative holes corresponds to the quantitative distribution volume of the liquid; and A driving motor is connected to the quantitative rotor, the driving motor drives the quantitative rotor to rotate, and connects at least one of the first holes and at least one of the corresponding second holes through at least one of the quantitative holes to form a channel, the liquid flows into the quantitative holes through at least one of the first holes or at least one of the second holes, the driving motor drives the quantitative rotor to rotate and cuts off the connection between at least one of the first holes and at least one of the corresponding second holes, and the liquid in the quantitative holes is used for quantitative distribution; A groove is provided at the lower end of the fixed upper plate, and the groove and the fixed lower plate form an accommodating space, and the quantitative rotor is arranged in the accommodating space, and the height of the accommodating space is the same as the thickness of the quantitative rotor, so as to prevent liquid leakage when the first hole and the second hole are connected to form a channel; A third hole is also provided in the middle of the fixed lower plate, and the output shaft of the driving motor passes through the third hole and is connected to the quantitative rotor; The electric dispensing quantitative device further includes a plurality of pipes for communicating between the plurality of the first holes and between the corresponding plurality of the second holes, so that the channels form a multi-channel mode.

2. The electric dispensing quantitative device according to claim 1, characterized in that: The multiple first holes are arranged at equal intervals along the circumferential direction of the fixed upper plate; and / or the multiple second holes are arranged at equal intervals along the circumferential direction of the fixed lower plate; and / or the multiple quantitative holes are arranged at equal intervals along the circumferential direction of the quantitative rotor.

3. The electric dispensing quantitative device according to claim 1, characterized in that: The number of the plurality of first holes is six; and / or the number of the plurality of second holes is six; and / or the number of the plurality of quantitative holes is six.

4. The electric dispensing quantitative device according to claim 1, characterized in that: The multiple first holes are through-hole structures, and the openings at both ends are respectively located at the upper and lower ends of the fixed upper plate, and a first thread is provided in the opening located at the upper end of the fixed upper plate for connecting with a port of the flow channel.

5. The electric dispensing quantitative device according to claim 1, characterized in that: The plurality of second holes are through hole structures, and the openings at both ends thereof are respectively located at the upper end and the side of the fixed lower plate, and the opening located at the side of the fixed lower plate is provided with a second thread for connecting with another port of the flow channel.

6. The electric dispensing quantitative device according to claim 5, characterized in that: The plurality of second holes are "L"-shaped through-hole structures.

7. The electric dispensing quantitative device according to claim 1, characterized in that: The material of the quantitative rotor is ceramic.

8. The electric dispensing quantitative device according to claim 1, characterized in that: The multiple quantitative holes are vertical through-hole structures penetrating through the two end surfaces of the quantitative rotor.

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