CN211800915U

CN211800915U - High-precision trace liquid filling equipment

Info

Publication number: CN211800915U
Application number: CN201922426326.1U
Authority: CN
Inventors: 乌月恒; 宾铁
Original assignee: ZHUHAI MEIHUA BIO-MEDICAL TECHNOLOGY CO LTD
Current assignee: ZHUHAI MEIHUA BIO-MEDICAL TECHNOLOGY CO LTD
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-10-30
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses a high accuracy trace liquid filling equipment, include: a support; a pipette gun having at least one gun head; the output end of the vertical driving unit is connected with the liquid-transfering gun to drive the liquid-transfering gun to vertically lift; the liquid taking grooves correspond to the gun heads one by one; the first horizontal driving unit drives the liquid taking groove to horizontally extend to the position right below the gun head or retract to avoid the moving path of the gun head; the peristaltic pump is provided with at least one pump tube and is used for correspondingly supplementing liquid to the liquid taking tank through the pump tube; the identification plate is positioned right below the gun head and is provided with a plurality of micropores. The filling device skillfully combines the pipette and the peristaltic pump through the liquid taking groove, and supports each other functionally, the peristaltic pump supplements liquid for the liquid taking groove rapidly, the gun head of the pipette can take liquid from the liquid taking groove accurately and quantitatively, the pipette can finish the actions of taking and filling only by vertical lifting, too many complicated actions are not needed, the whole operation is very convenient, and at least one liquid can be filled simultaneously.

Description

High-precision trace liquid filling equipment

Technical Field

The utility model relates to a medicine, laboratory liquid filling technique, in particular to high accuracy trace liquid filling equipment.

Background

At present, in the field of medicine industry and laboratory, there are two general schemes: one is a liquid transfer gun scheme which can realize multichannel accurate filling, but the liquid transfer gun has complex operation, various actions and very low speed and can only fill single liquid; the other one is a peristaltic pump scheme, which can realize rapid acceleration and high efficiency, but has low liquid adding precision and larger error, and is difficult to achieve the effect of quantitative filling. In the liquid sample adding work of the pharmaceutical industry and laboratories, only one scheme can be selected, which is lost, and the two schemes cannot be obviously combined, so that a rapid and high-precision trace liquid filling device is urgently needed to fill the gap in the aspect on the market at present.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a quick and high-precision trace liquid filling equipment.

According to the utility model discloses high accuracy trace liquid filling equipment, include: a support; a pipette gun having at least one gun head; the output end of the vertical driving unit is connected with the liquid-transferring gun and drives the liquid-transferring gun to vertically lift; at least one liquid taking groove, wherein the liquid taking grooves correspond to the gun heads one to one; the output end of the first horizontal driving unit is connected with the liquid taking groove, and the liquid taking groove is driven to horizontally extend forwards to the position right below the gun head or retract backwards to avoid the moving path of the gun head; the peristaltic pump is provided with at least one pump tube, and the peristaltic pump correspondingly replenishes the liquid taking tank with liquid through the pump tube; and the identification plate is positioned right below the gun head and is provided with a plurality of micropores.

The method has the following beneficial effects: the filling equipment skillfully combines the pipette and the peristaltic pump through the liquid taking groove, and supports each other functionally, the peristaltic pump quickly supplements liquid for the liquid taking groove, the gun head of the pipette can accurately and quantitatively take liquid from the liquid taking groove, and the liquid taking groove is arranged to be movable, can extend forwards to the position right below the gun head or retract backwards to avoid the moving path of the gun head, after the pipette finishes taking liquid and moves away the liquid taking groove, the pipette vertically descends to transfer and fill the liquid into the micropores of the discrimination plate.

According to some embodiments of the utility model, the liquid-transfering gun includes piston and rifle body, the rifle head install in the bottom of the rifle body, the rifle body have with piston sliding connection's piston chamber, the rifle head has the liquid channel who link up from top to bottom, the piston chamber with the liquid channel intercommunication.

According to some embodiments of the utility model, move liquid execution unit is installed to vertical drive unit's output, move liquid execution unit's output with the piston is connected, drives the piston is relative piston chamber vertical slip.

According to some embodiments of the utility model, move liquid actuating unit includes step motor and ball, step motor's output shaft with ball's screw rod is connected, the piston is connected with the nut on the ball.

According to some embodiments of the utility model, vertical drive unit includes guide rail and first cylinder, the guide rail is vertical to be installed on the support, guide rail sliding connection has the mounting bracket, the rifle body all passes through with move liquid execution unit the mounting bracket is connected the output of first cylinder.

According to the utility model discloses a some embodiments, the fluid infusion mouth has been seted up to the lower part lateral wall in liquid intaking groove, the fluid infusion mouth with the pump line intercommunication, the overflow mouth has been seted up to the upper portion lateral wall in liquid intaking groove, is used for discharging unnecessary liquid in the liquid intaking groove.

According to the utility model discloses a some embodiments still include an overflow passageway and an overflow pipe, the overflow passageway communicates the overflow mouth of all liquid tanks of getting, the overflow pipe with overflow passageway intercommunication, overflow passageway's bottom is less than the bottom of overflow mouth, the bottom of overflow pipe with overflow passageway's bottom parallel and level.

According to the utility model discloses a some embodiments, get the bottom in cistern and seted up and get the liquid vat, it is in to get the liquid vat get the lowest position in cistern, get the liquid vat from top to bottom and reduce the mouth gradually.

According to some embodiments of the present invention, the support is provided with a horizontal transfer unit for horizontally transferring the plate and a positioning member for fixing the position of the plate.

According to some embodiments of the invention, the positioning element is connected with a second horizontal drive unit.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic partial structural diagram of the embodiment of the present invention;

fig. 3 is a schematic view of a partial structure according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a liquid-taking tank according to an embodiment of the present invention;

fig. 5 is a schematic view of another view angle structure of the liquid-extracting tank in the embodiment of the present invention;

fig. 6 is a schematic sectional view of a liquid-extracting tank according to an embodiment of the present invention;

fig. 7 is a partial enlarged view of a portion a in fig. 6.

Reference numerals: the device comprises a support 1, a liquid transferring gun 2, a gun body 21, a piston 22, a gun head 23, a vertical driving unit 3, a guide rail 31, a first air cylinder 32, a liquid transferring execution unit 4, a stepping motor 41, a ball screw 42, a liquid taking groove 5, a liquid supplementing port 51, an overflow port 52, an overflow channel 53, an overflow pipe 54, a small liquid taking groove 55, a second pump pipe joint 56, a mounting frame 57, a first horizontal driving unit 6, a peristaltic pump 7, a first pump pipe joint 71, an identification plate 8, a micropore 81, a mounting frame 9, a horizontal conveying unit 10, a positioning piece 11 and a second horizontal driving unit 12.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the present number, and the terms greater than, less than, within, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1, 2 and 3, the utility model discloses a high-precision trace liquid filling device, which comprises a support 1, a pipette 2, a vertical driving unit 3, a first horizontal driving unit 6, a peristaltic pump 7 and at least one liquid taking tank 5, wherein the pipette 2 is provided with at least one gun head 23, the liquid taking tank 5 is in one-to-one correspondence with the gun head 23, the vertical driving unit 3 is installed on the support 1, the output end of the vertical driving unit 3 is connected with the pipette 2 to drive the pipette 2 to vertically lift, the first horizontal driving unit 6 is installed on the support 1, the output end of the first horizontal driving unit 6 is connected with the liquid taking tank 5 to drive the liquid taking tank 5 to horizontally extend forwards to the position under the gun head 23 or retract backwards to avoid the moving path of the gun head 23, the peristaltic pump 7 is provided with at least one pump pipe, the peristaltic pump 7 correspondingly supplies liquid to the liquid taking tank 5 through the pump pipe, a discrimination plate 8 is positioned under the gun head 23, having a plurality of micropores 81.

The filling device skillfully combines the pipette 2 and the peristaltic pump 7 through the liquid taking tank 5, and supports each other functionally, the peristaltic pump 7 can quickly supplement liquid for the liquid taking tank 5, the gun head 23 of the pipette 2 can accurately take quantitative liquid from the liquid taking tank 5, the liquid taking tank 5 is arranged to be movable, the pipette can extend forwards to the position under the gun head 23 or retract backwards to avoid the moving path of the gun head 23, after the pipette 2 finishes taking liquid and moves away the liquid taking tank 5, the pipette 2 descends vertically to transfer and fill the liquid into the micropores 81 of the identification plate 8, except for the characteristics of high speed and high precision, the pipette 2 can finish the actions of taking and filling only by vertical lifting, too many complex actions are not needed, the whole operation is very convenient, and at least one liquid can be filled simultaneously without being influenced.

As shown in fig. 2, the pipette 2 includes a piston 22 and a gun body 21, a gun head 23 is mounted at the bottom end of the gun body 21, the gun body 21 has a piston cavity slidably connected to the piston 22, the gun head 23 has a liquid channel vertically penetrating through the piston cavity, the piston cavity is communicated with the liquid channel, and when the piston 22 vertically slides relative to the piston cavity, the liquid channel can be filled with liquid or drained of liquid.

The utility model discloses an in some embodiments, move liquid execution unit 4 is installed to vertical drive unit 3's output, move liquid execution unit 4's output and be connected with piston 22, the relative piston chamber vertical slip of drive piston 22, specifically, move liquid execution unit 4 includes step motor 41 and ball 42, step motor 41's output shaft is connected with ball 42's screw rod, piston 22 is connected with the nut on the ball 42, make step motor 41 can drive piston 22 and slide relative piston chamber, step motor 41's transmission precision is high, can accurately control getting liquid measure and flowing back volume of rifle head 23, thereby realize automatic liquid and flowing back operation, whole operation is very convenient.

In some embodiments of the present invention, as shown in fig. 3, the vertical driving unit 3 includes a guide rail 31 and a first cylinder 32, the guide rail 31 is vertically installed on the support 1, the guide rail 31 is slidably connected to the mounting bracket 9, the gun body 21 and the pipetting executing unit 4 are both connected to the output end of the first cylinder 32 through the mounting bracket 9, the first cylinder 32 can drive the gun body 21 and the pipetting executing unit 4 to vertically lift, wherein the mounting bracket 9 plays a role of supporting and driving the gun body 21 and the pipetting executing unit 4.

Referring to fig. 4 and 5, in some embodiments of the present invention, the fluid infusion port 51 has been opened on the lower side wall of the fluid infusion tank 5, the fluid infusion port 51 communicates with the pump tube, specifically, as shown in fig. 1, at least one first pump tube connector 71 is installed on the peristaltic pump 7, a second pump tube connector 56 is installed on the fluid infusion port 51 of each fluid infusion tank 5, and the first pump tube connector 71 and the second pump tube connector 56 are respectively connected to the two ends of the pump tube, so that the peristaltic pump 7 can rapidly supplement the fluid for the fluid infusion tank 5 through the pump tube and the fluid infusion port 51. The upper side wall of the liquid taking groove 5 is also provided with an overflow port 52 for discharging redundant liquid in the liquid taking groove 5, after the liquid transferring gun 2 takes away one or more times of liquid, the peristaltic pump 7 pumps primary liquid into the liquid taking groove 5, and the overflow port 52 can ensure that the maximum storage amount in the liquid taking groove 5 is certain, so that accumulation errors are prevented.

Referring to fig. 5, 6 and 7, the liquid taking device further comprises an overflow channel 53 and an overflow pipe 54, wherein the overflow channel 53 is communicated with the overflow ports 52 of all the liquid taking tanks 5, the overflow pipe 54 is communicated with the overflow channel 53, as shown in fig. 7, the bottom of the overflow channel 53 is lower than the bottom of the overflow port 52, and the bottom of the overflow pipe 54 is flush with the bottom of the overflow channel 53, so that the liquid in the overflow channel 53 cannot flow back into the liquid taking tanks 5 from the overflow ports 52, and can be discharged through the overflow pipe 54 in time.

In some embodiments of the utility model, get the bottom of liquid groove 5 and seted up and get liquid vat 55, get the liquid vat 55 and be in the lowest position of getting liquid groove 5, get liquid vat 55 from top to bottom and reduce gradually, specifically be radius platform form, even when the volume of depositing in getting liquid groove 5 is less, liquid can be gathered in getting liquid vat 55, rifle head 23 can siphon away and get almost all liquid in the liquid groove 5.

In addition, in order to facilitate the connection of the liquid taking tank 5 and the first horizontal driving unit 6, a mounting frame 57 is arranged outside the liquid taking tank 5, the first horizontal driving unit 6 is a second cylinder which is horizontally arranged, and the mounting frame 57 is connected with the output end of the second cylinder.

Referring to fig. 1 and 2, a positioning part 11 and a horizontal conveying unit 10 for horizontally conveying the identification plate 8 are mounted on the support 1, the horizontal conveying direction of the identification plate 8 is perpendicular to the moving direction of the liquid taking groove 5, the horizontal conveying unit 10 can convey a plurality of identification plates 8 simultaneously, the positioning part 11 is connected with a second horizontal driving unit 12, the second horizontal driving unit 12 is a third cylinder, the positioning part is horizontally driven by the second horizontal driving unit 12 to be clamped at two ends of the identification plate 8, the identification plate 8 is prevented from moving, and therefore the position of the identification plate 8 is fixed, the identification plate 8 is located right below the liquid transferring gun 2, and the gun head 23 is opposite to the micropores 81.

In some embodiments of the utility model, as shown in fig. 1 and 2, the identification plate 8 has one hundred twenty micropores 81, micropore 81 is twelve rows of twelve rows matrix arrangement, correspondingly have ten pipetting guns 2, every pipetting gun corresponds the micropore 81 of filling simultaneously on the same row, every pipetting gun 2 has twelve rifle heads 23, twelve rifle heads 23 correspond twelve liquid taking groove 5 and twelve pump lines respectively, this filling equipment is filled ten identification plates 8 simultaneously, the filling work of one hundred twenty micropores 81 can be accomplished through ten pipetting gun's filling process in proper order to every identification plate, and efficiency is very high.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. High accuracy trace liquid filling equipment, its characterized in that includes:

a support;

a pipette gun having at least one gun head;

the output end of the vertical driving unit is connected with the liquid-transferring gun and drives the liquid-transferring gun to vertically lift;

at least one liquid taking groove, wherein the liquid taking grooves correspond to the gun heads one to one;

the output end of the first horizontal driving unit is connected with the liquid taking groove, and the liquid taking groove is driven to horizontally extend forwards to the position right below the gun head or retract backwards to avoid the moving path of the gun head;

the peristaltic pump is provided with at least one pump tube, and the peristaltic pump correspondingly replenishes the liquid taking tank with liquid through the pump tube;

and the identification plate is positioned right below the gun head and is provided with a plurality of micropores.

2. The high-precision micro-liquid filling device according to claim 1, wherein the pipette comprises a piston and a gun body, the gun head is mounted at the bottom end of the gun body, the gun body is provided with a piston cavity connected with the piston in a sliding manner, the gun head is provided with a liquid channel penetrating up and down, and the piston cavity is communicated with the liquid channel.

3. The high-precision micro-liquid filling device according to claim 2, wherein a pipetting execution unit is mounted at an output end of the vertical driving unit, and the output end of the pipetting execution unit is connected with the piston to drive the piston to vertically slide relative to the piston cavity.

4. The high-precision micro-liquid filling apparatus according to claim 3, wherein the pipetting executing unit comprises a stepping motor and a ball screw, an output shaft of the stepping motor is connected with a screw rod of the ball screw, and the piston is connected with a nut on the ball screw.

5. The high-precision micro-liquid filling device according to claim 3 or 4, wherein the vertical driving unit comprises a guide rail and a first air cylinder, the guide rail is vertically installed on the support, a mounting frame is connected to the guide rail in a sliding manner, and the gun body and the pipetting execution unit are both connected with an output end of the first air cylinder through the mounting frame.

6. The apparatus according to claim 1, wherein a fluid infusion port is formed in a lower side wall of the fluid infusion tank, the fluid infusion port is communicated with the pump tube, and an overflow port is formed in an upper side wall of the fluid infusion tank, and the overflow port is used for discharging excess fluid in the fluid infusion tank.

7. The apparatus for filling a high-precision micro-amount of liquid according to claim 6, further comprising an overflow channel and an overflow pipe, wherein the overflow channel is communicated with the overflow ports of all the liquid taking tanks, the overflow pipe is communicated with the overflow channel, the bottom of the overflow channel is lower than the bottom of the overflow ports, and the bottom of the overflow pipe is flush with the bottom of the overflow channel.

8. The high-precision micro-liquid filling device according to claim 1 or 6, wherein a small liquid taking groove is formed at the bottom of the liquid taking groove, the small liquid taking groove is located at the lowest position of the liquid taking groove, and the small liquid taking groove is gradually reduced in diameter from top to bottom.

9. The apparatus for high-precision micro-fluid filling according to claim 1, wherein a horizontal transfer unit for horizontally transferring the assay plate and a positioning member for fixing a position of the assay plate are installed on the holder.

10. The apparatus according to claim 9, wherein a second horizontal driving unit is connected to the positioning member.