Multi-channel distributor

Abstract

The utility model discloses a multi-channel distributor which comprises a workbench, a liquid distribution mechanism and a proceeding mechanism. A mounting frame is arranged on the rear side of the workbench; the liquid distribution mechanism comprises liquid storage pipes and discharging pipes, the liquid storage pipes are uniformly arranged between the upper inner wall and the lower inner wall of the mounting frame, and the discharging pipes are arranged at the lower ends of the liquid storage pipes; the feeding mechanism comprises a driven rotating shaft, a placement disc and placement grooves, the driven rotating shaft is rotationally connected to the middle of the upper surface of the workbench, the placement disc is arranged at the upper end of the driven rotating shaft, the placement grooves which are evenly distributed are formed in the upper end of the placement disc, and liquid containing cups are placed in the placement grooves; the single-chip microcomputer is arranged on the front side of the upper surface of the workbench, the input end of the single-chip microcomputer is electrically connected with an external power source, the multi-channel distributor can provide various types of liquid for users at the same time, and meanwhile the liquid distribution precision is high.

Description

Technical Field

[0001] The utility model relates to the technical field of distributors, in particular to a multi-channel distributor. Background Art

[0002] Multichannel distributors, also known as liquid distributors, are widely used in laboratory testing for tasks such as sample processing, reagent distribution, and liquid delivery.

[0003] Some existing dispensing methods use manual dispensing, that is, placing a holding cup under a control switch valve, and then manually opening the control switch valve, the reagent liquid to be used flows out of the control switch valve and falls into the holding cup, and then manually accurately extracts and adds to obtain a specified amount of experimental reagents, and then repeats the above process to obtain different reagents;

[0004] This type of conventional distribution method has some problems in daily operation. For example, the liquid outlet needs to be manually aligned, there is a certain height between the liquid outlet and the container, the liquid may splash out, and the manual precise sampling method is cumbersome and the accuracy is not very high. Only one liquid can be taken out at a time. For this reason, we propose a multi-channel distributor. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a multi-channel distributor, which can realize accurate liquid distribution operation and effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-channel distributor, including a workbench, a liquid distributing mechanism and a carrying mechanism;

[0007] Workbench: A mounting frame is provided on the rear side thereof;

[0008] Liquid distribution mechanism: It includes a liquid storage pipe and a discharge pipe. The liquid storage pipes are evenly arranged between the upper and lower inner walls of the mounting frame, and the lower ends of the liquid storage pipes are provided with discharge pipes;

[0009] Carrying mechanism: It includes a driven rotating shaft, a placing plate and a placing groove. The driven rotating shaft is rotatably connected to the middle part of the upper surface of the workbench. The upper end of the driven rotating shaft is provided with a placing plate. The upper end of the placing plate is provided with evenly distributed placing grooves. Liquid cups are placed inside the placing grooves. Various types of liquids can be provided to users at the same time, and the liquid distribution accuracy is high.

[0010] Furthermore, it also includes a single-chip microcomputer, which is arranged on the front side of the upper surface of the workbench, and the input end of the single-chip microcomputer is electrically connected to an external power supply to control the operation of various electrical appliances.

[0011] Furthermore, the liquid distribution mechanism also includes a piston, a three-way solenoid valve, a telescopic cylinder, a liquid inlet pipe and a solenoid valve. The piston is slidably connected to the inside of the liquid storage tube. The upper end of the mounting frame is provided with evenly distributed telescopic cylinders. The telescopic ends of the three telescopic cylinders are respectively fixedly connected to the upper ends of the vertically adjacent pistons. Liquid inlet pipes are respectively provided on the lower side of the outer arc surface of the liquid storage tube. The upper ends of the liquid inlet pipes are respectively connected to external feeding equipment. The middle parts of the three discharge pipes are all connected in series with three-way solenoid valves. The waste liquid ports of the three three-way solenoid valves are respectively connected to external waste collection equipment through water pipes. The air inlets of the telescopic cylinders are respectively connected to external air pumps. The input ends of the three-way solenoid valves and the solenoid valves are respectively electrically connected to the output ends of the single-chip microcomputer to realize the function of distributing multiple liquids.

[0012] Furthermore, the mechanism also includes a driven gear, a driving circular plate and a quarter driving gear. The driving circular plate is rotatably connected to the front side of the upper surface of the workbench through a rotating shaft. A quarter driving gear is provided in the middle of the upper end of the driving circular plate. A driven gear is fixedly sleeved in the middle of the outer arc surface of the driven rotating shaft. The driven gear is installed in cooperation with the quarter driving gear.

[0013] Furthermore, the mechanism also includes a reduction motor, which is arranged on the lower surface of the workbench, and the output shaft of the reduction motor is fixedly connected to the rotating shaft at the lower end of the driving circular plate, and the input end of the reduction motor is electrically connected to the output end of the single-chip microcomputer to provide power for automatic positioning.

[0014] Furthermore, it also includes scale lines, which are respectively arranged on the front sides of the outer arc surfaces of the three liquid storage tubes, so that the amount of liquid can be roughly observed manually.

[0015] Furthermore, it also includes supporting feet, which are respectively arranged at the four corners of the bottom surface of the workbench to support the distributor and provide space for the installation of the motor.

[0016] Compared with the prior art, the beneficial effects of the utility model are: the multi-channel distributor has the following advantages:

[0017] 1. When performing the distribution operation, the single-chip microcomputer is regulated to operate the reduction motor. The output shaft of the reduction motor rotates one circle, and then drives the quarter drive gear to rotate one circle through the driving circular plate. During the rotation process, the quarter drive gear meshes with the driven gear with one quarter of its own teeth, and then drives the driven gear to rotate forty-five degrees. After the driven gear rotates forty-five degrees, the quarter drive gear loses the meshing with the driven gear, and then drives the placement plate to rotate forty-five degrees, and then changes the position of the liquid cup. At this time, the single-chip microcomputer can be regulated to move the liquid cup to the lower end of the designated discharge pipe. The liquid cup can be moved to the designated position without manual positioning, and the liquid can be prevented from being affected by the height and splashing the liquid falling into the placement cup.

[0018] 2. During the distribution operation, the single-chip microcomputer is regulated, and the three solenoid valves are opened, and the external feeding equipment is regulated to input liquid into the liquid storage tube. During this period, the external air pump is regulated, and the telescopic end of the telescopic cylinder is contracted, thereby driving the piston to move upward. At this time, the scale line can be observed and the specified liquid is added to the liquid storage tube. At this time, the single-chip microcomputer can be regulated to move the liquid cup to the lower end of the specified discharge pipe. At this time, the external air pump can be regulated, and the telescopic cylinder at the corresponding position is operated, and the output shaft of the telescopic cylinder is extended, thereby driving the piston to move downward in the liquid storage tube. At the same time, the single-chip microcomputer is regulated, and the three-way solenoid valve at the corresponding position is opened to form a passage, and the specified liquid falls into the liquid storage cup through the discharge pipe at a conventional flow rate. At this time, the single-chip microcomputer, the three-way solenoid valve discharges the specified amount of liquid. At this time, due to the specified reaction time difference of the telescopic cylinder, the three-way solenoid valve is closed to prevent excess liquid from falling through the discharge pipe. The excess liquid will be discharged into the waste collection equipment along the waste liquid port, which can provide users with multiple types of liquids at the same time, and the liquid distribution has high accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 It is a partial structural schematic diagram of the liquid distribution mechanism of the utility model.

[0022] In the figure: 1 workbench, 2 mounting frame, 3 liquid distribution mechanism, 31 liquid storage tube, 32 piston, 33 discharge tube, 34 three-way solenoid valve, 35 telescopic cylinder, 36 liquid inlet tube, 37 solenoid valve, 4 single chip computer, 5 support leg, 6 mechanism, 61 driven shaft, 62 placement plate, 63 placement slot, 64 driven gear, 65 driving circular plate, 66 quarter driving gear, 67 reduction motor, 7 liquid holding cup, 8 scale line. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3 , this embodiment provides a technical solution: a multi-channel distributor, including a workbench 1, a liquid dispensing mechanism 3 and a conducting mechanism 6;

[0025] Workbench 1: A mounting frame 2 is provided on the rear side thereof, and also includes a single-chip microcomputer 4, which is arranged on the front side of the upper surface of the workbench 1, and the input end of the single-chip microcomputer 4 is electrically connected to an external power supply, and also includes legs 5, which are respectively arranged at the four corners of the bottom surface of the workbench 1;

[0026] Liquid distribution mechanism 3: It includes a liquid storage tube 31 and a discharge tube 33. The liquid storage tube 31 is evenly arranged between the upper and lower inner walls of the mounting frame 2. The lower end of the liquid storage tube 31 is provided with a discharge tube 33. The liquid distribution mechanism 3 also includes a piston 32, a three-way solenoid valve 34, a telescopic cylinder 35, a liquid inlet tube 36 and a solenoid valve 37. The piston 32 is slidably connected to the inside of the liquid storage tube 31. The upper end of the mounting frame 2 is provided with evenly distributed telescopic cylinders 35. The telescopic ends of the three telescopic cylinders 35 are respectively connected to the vertically adjacent pistons. The upper end of the liquid storage tube 31 is fixedly connected, and the lower side of the outer arc surface of the liquid storage tube 31 is respectively provided with a liquid inlet pipe 36, and the upper end of the liquid inlet pipe 36 is respectively connected to the external feeding equipment. The middle part of the three discharge pipes 33 is connected in series with a three-way solenoid valve 34, and the waste liquid ports of the three three-way solenoid valves 34 are respectively connected to the external waste collection equipment through the water pipe, and the air inlet of the telescopic cylinder 35 is respectively connected to the external air pump. The input ends of the three-way solenoid valve 34 and the solenoid valve 37 are respectively electrically connected to the output end of the single-chip computer 4, and also include a scale line 8, a scale The lines 8 are respectively arranged on the outer arc surface side of the three liquid storage tubes 31. During the distribution operation, the single chip microcomputer 4 is regulated, the three solenoid valves 37 are opened, and the external feeding device is regulated to input liquid into the liquid storage tube 31. During this period, the external air pump is regulated, and the telescopic end of the telescopic cylinder 35 is contracted, thereby driving the piston 32 to move upward. At this time, the scale line 8 can be observed, and the specified liquid is added into the liquid storage tube 31 to complete the feeding. The external air pump can be regulated, and the telescopic cylinder 35 at the corresponding position is operated. The output shaft of the telescopic cylinder 35 is extended, thereby driving the piston 32 to move downward in the liquid storage tube 31. At the same time, the single chip microcomputer 4 is regulated, and the three-way solenoid valve 34 at the corresponding position is opened to form a passage. At this time, the single chip microcomputer 4 can be regulated. After the three-way solenoid valve 34 discharges the specified amount of liquid, at this time, due to the specified reaction time difference of the telescopic cylinder 35, the three-way solenoid valve 34 is closed to prevent the excess liquid from falling through the discharge pipe 33. The excess liquid will be discharged into the waste collection device along the waste liquid port;

[0027] The carrying mechanism 6 includes a driven shaft 61, a placement plate 62 and a placement groove 63. The driven shaft 61 is rotatably connected to the middle of the upper surface of the workbench 1. The upper end of the driven shaft 61 is provided with a placement plate 62. The upper end of the placement plate 62 is provided with evenly distributed placement grooves 63. Liquid cups 7 are placed inside the placement grooves 63. The carrying mechanism 6 also includes a driven gear 64, a driving circular plate 65 and a quarter driving gear 66. The driving circular plate 65 is rotatably connected to the front side of the upper surface of the workbench 1 through a shaft. The middle of the upper end of the driving circular plate 65 is provided with a There is a quarter driving gear 66, and a driven gear 64 is fixedly sleeved on the middle part of the outer arc surface of the driven rotating shaft 61. The driven gear 64 is installed in cooperation with the quarter driving gear 66. The mechanism 6 also includes a reduction motor 67, which is arranged on the lower surface of the workbench 1. The output shaft of the reduction motor 67 is fixedly connected to the rotating shaft at the lower end of the driving circular plate 65. The input end of the reduction motor 67 is electrically connected to the output end of the single-chip computer 4. The radius of the driving circular plate 65 and the quarter driving gear 66 are the same. The liquid cup 7 is placed at the front side. The inside of the slot 63, at this time, the single chip microcomputer 4 can be regulated, the electromagnetic valve 37 is closed, the liquid in the liquid storage tube 31 is sealed, and the feeding function is realized. When the distribution operation is required, the single chip microcomputer 4 is regulated, the reduction motor 67 is operated, and the output shaft of the reduction motor 67 rotates one circle, and then drives the quarter drive gear 66 to rotate one circle through the driving circular plate 65. During the rotation process, the quarter drive gear 66 meshes with the driven gear 64 with one quarter of its own teeth, thereby driving the driven gear 64 to rotate forty-five degrees, and the driven gear 64 rotates forty-five degrees. After the gear 64 rotates forty-five degrees, the quarter drive gear 66 loses engagement with the driven gear 64, thereby driving the placement plate 62 to rotate forty-five degrees, thereby changing the position of the liquid cup 7. At this time, the single-chip microcomputer 4 can be controlled to move the liquid cup 7 to the lower end of the designated discharge pipe 33, and the designated liquid falls into the liquid cup 7 through the discharge pipe 33 at a conventional flow rate. After the operation is completed, the single-chip microcomputer 4 can be controlled to move the liquid cup 7 to the front side. At this time, the liquid cup 7 is manually picked up to complete the distribution operation.

[0028] The working principle of a multi-channel distributor provided by the utility model is as follows: during the distribution operation, the single-chip microcomputer 4 is regulated, the three solenoid valves 37 are opened, and the external feeding device is regulated to input liquid into the liquid storage tube 31. During this period, the external air pump is regulated, and the telescopic end of the telescopic cylinder 35 is contracted, thereby driving the piston 32 to move upward. At this time, the scale line 8 can be observed, and the specified liquid is added to the liquid storage tube 31. After the feeding is completed, the liquid cup 7 can be placed inside the placement groove 63 on the front side. At this time, the single-chip microcomputer 4 can be regulated, and the solenoid valve 37 is closed to seal the liquid in the liquid storage tube 31 to realize the feeding function. When the distribution operation is required, the single-chip microcomputer 4 is regulated, and the reduction motor 67 is operated. The output shaft of the reduction motor 67 rotates one circle, and then drives the quarter drive gear 66 to rotate one circle through the driving circular plate 65. During the rotation process, the quarter drive gear 66 meshes with the driven gear 64 with one quarter of its own teeth, thereby driving the driven gear 64 to rotate forty-five degrees. After the driven gear 64 rotates forty-five degrees, the quarter drive gear 6 6 loses its meshing with the driven gear 64, thereby driving the placement plate 62 to rotate forty-five degrees, thereby changing the position of the liquid cup 7. At this time, the single-chip computer 4 can be regulated to move the liquid cup 7 to the lower end of the designated discharge pipe 33. At this time, the external air pump can be regulated to operate the telescopic cylinder 35 at the corresponding position, and the output shaft of the telescopic cylinder 35 is extended, thereby driving the piston 32 to move downward in the liquid storage pipe 31. At the same time, the single-chip computer 4 is regulated to open the three-way solenoid valve 34 at the corresponding position to form a passage, and the designated liquid is discharged in the form of a discharge pipe 33. The normal flow rate falls into the interior of the liquid cup 7 through the discharge pipe 33, and the single-chip microcomputer 4 can be regulated at this time. After the three-way solenoid valve 34 discharges the specified amount of liquid, at this time, due to the specified reaction time difference of the telescopic cylinder 35, the three-way solenoid valve 34 is closed to prevent excess liquid from falling through the discharge pipe 33. The excess liquid will be discharged into the waste collection equipment through the waste liquid port. After completing the operation, the single-chip microcomputer 4 can be regulated, and the liquid cup 7 can be moved to the front side. At this time, the liquid cup 7 is manually picked up to complete the distribution operation.

[0029] It is worth noting that the single chip microcomputer 4 disclosed in the above embodiment is specifically model S7-200, and the three-way solenoid valve 34, the solenoid valve 37 and the reduction motor 67 can be freely configured according to the actual application scenario. The three-way solenoid valve 34 is recommended to use the ZCF model anti-corrosion two-position three-way solenoid valve, the solenoid valve 37 is recommended to use the N1 M251 series solenoid valve, and the reduction motor 67 is recommended to use the NEMA23 model precision planetary reduction stepper motor. The single chip microcomputer 4 controls the three-way solenoid valve 34, the solenoid valve 37 and the reduction motor 67 using methods commonly used in the prior art.

[0030] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A multi-channel distributor, characterized in that: It comprises a workbench (1), a liquid dispensing mechanism (3) and a carrying mechanism (6); A workbench (1) is provided with a mounting frame (2) on the rear side thereof; The liquid distribution mechanism (3) comprises a liquid storage pipe (31) and a discharge pipe (33), wherein the liquid storage pipe (31) is evenly arranged between the upper and lower inner walls of the mounting frame (2), and the lower end of each liquid storage pipe (31) is provided with a discharge pipe (33); The carrying mechanism (6) comprises a driven rotating shaft (61), a placing plate (62) and a placing groove (63), wherein the driven rotating shaft (61) is rotatably connected to the middle of the upper surface of the workbench (1), a placing plate (62) is provided at the upper end of the driven rotating shaft (61), and evenly distributed placing grooves (63) are opened at the upper end of the placing plate (62), and liquid cups (7) are placed inside the placing grooves (63).

2. A multi-channel distributor according to claim 1, characterized in that: It also comprises a single-chip microcomputer (4), which is arranged on the front side of the upper surface of the workbench (1), and the input end of the single-chip microcomputer (4) is electrically connected to an external power supply.

3. A multi-channel distributor according to claim 2, characterized in that: The liquid distribution mechanism (3) further comprises a piston (32), a three-way solenoid valve (34), a telescopic cylinder (35), a liquid inlet pipe (36) and a solenoid valve (37); the piston (32) is slidably connected to the inside of the liquid storage pipe (31); the upper end of the mounting frame (2) is provided with evenly distributed telescopic cylinders (35); the telescopic ends of the three telescopic cylinders (35) are respectively fixedly connected to the upper ends of the vertically adjacent pistons (32); the lower side of the outer arc surface of the liquid storage pipe (31) is provided with a liquid inlet pipe (36); the upper ends of the liquid inlet pipes (36) are respectively connected to external feeding equipment; the middle parts of the three discharge pipes (33) are connected in series with a three-way solenoid valve (34); the waste liquid ports of the three three-way solenoid valves (34) are respectively connected to external waste collection equipment through water pipes; the air inlets of the telescopic cylinders (35) are respectively connected to external air pumps; the input ends of the three-way solenoid valve (34) and the solenoid valve (37) are respectively electrically connected to the output end of the single chip computer (4).

4. A multi-channel distributor according to claim 2, characterized in that: The said mechanism (6) further comprises a driven gear (64), a driving circular plate (65) and a quarter driving gear (66); the driving circular plate (65) is rotatably connected to the front side of the upper surface of the workbench (1) via a rotating shaft; a quarter driving gear (66) is arranged at the middle of the upper end of the driving circular plate (65); a driven gear (64) is fixedly sleeved at the middle of the outer arc surface of the driven rotating shaft (61); and the driven gear (64) and the quarter driving gear (66) are mounted in cooperation.

5. A multi-channel distributor according to claim 4, characterized in that: The carrying mechanism (6) further comprises a reduction motor (67), wherein the reduction motor (67) is arranged on the lower surface of the workbench (1), the output shaft of the reduction motor (67) is fixedly connected to the rotating shaft at the lower end of the driving circular plate (65), and the input end of the reduction motor (67) is electrically connected to the output end of the single chip computer (4).

6. A multi-channel distributor according to claim 1, characterized in that: It also includes scale lines (8), which are respectively arranged on the front sides of the outer arc surfaces of the three liquid storage tubes (31).

7. A multi-channel distributor according to claim 1, characterized in that: It also comprises supporting feet (5), and the supporting feet (5) are respectively arranged at the four corners of the bottom surface of the workbench (1).

Images