Multi-station liquid displacement device structure

Abstract

The utility model relates to a multi-station liquid displacement device structure. The multi-station liquid displacement device structure comprises a linear module; the push-pull assembly is mounted on one surface of the linear module; the push-pull assembly comprises a fixed plate, a movable plate and a plurality of injectors; a needle cylinder of the injector is mounted on the fixed plate, and a piston rod of the injector is mounted on the movable plate; the moving plate is slidably connected with a main body of the linear module; the suction head assembly is mounted at one end of the linear module; the suction head assembly comprises a rotating air cylinder, a swing frame and a plurality of suction heads. The suction heads are in one-to-one correspondence with the needle cylinders and are upwards connected with the needle cylinders through hoses. The multi-station liquid transfer device is simple in structure and convenient to use, the multiple injectors are arranged, the injectors and the suction heads are arranged separately, the suction heads can be driven by the rotary air cylinder to conduct angle adjustment, the operation complexity is reduced, the efficiency of treating multi-tube liquid transfer tasks at the same time is greatly improved, and the stability and precision in the liquid transfer process are further ensured.

Description

Technical Field

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

[0002] A pipette, also known as a pipetting gun, is a metering tool used to transfer liquid from an original container to another container within a certain range of measuring ranges. It is widely used in biological, chemical and other fields and is widely used because of its simple basic structure and convenient use.

[0003] Traditional pipettes usually adopt a single-tube design, and the pipette tip is fixedly connected to the pipette body. However, when it is necessary to handle multi-tube pipetting tasks simultaneously, this design is not efficient enough. More importantly, the fixed connection of the pipette tip greatly limits the possibility of angle adjustment. Especially when adapting to containers of different shapes, users often have to tilt the pipette as a whole, which not only increases the complexity of the operation, but also affects the efficiency and accuracy of pipetting. Summary of the Utility Model

[0004] Based on this, the utility model provides a multi-channel pipette structure, which has a simple structure and is convenient to use. It has multiple syringes, and the syringes and the pipette tips are separately arranged. The pipette tips can be driven by a rotary cylinder to adjust the angle, which reduces the complexity of the operation, greatly improves the efficiency of handling multi-tube pipetting tasks simultaneously, and also ensures the stability and accuracy during the pipetting process.

[0005] In order to achieve the purpose of the utility model, the following technical solutions are adopted:

[0006] A multi-channel pipette structure includes:

[0007] A linear module;

[0008] A push-pull assembly installed on one side of the linear module; the push-pull assembly includes a fixing plate fixedly installed on the main body of the linear module, a moving plate slidably installed on one side of the fixing plate, and a plurality of syringes connected between the fixing plate and the moving plate; the syringe barrel is installed on the fixing plate, and the piston rod of the syringe is installed on the moving plate; the moving plate is slidably connected to the main body of the linear module; and

[0009] A pipette tip assembly installed at one end of the linear module; the pipette tip assembly includes rotary cylinders fixedly installed on opposite sides at one end of the linear module, a swing frame connecting the two rotary cylinders, and a plurality of pipette tips installed on the bottom surface of the swing frame; the pipette tips correspond to the syringe barrels one by one, and the pipette tips are connected to the syringe barrels upward through hoses.

[0010] The above multi-channel pipettor structure is simple in structure and convenient to use. It has multiple syringes, and the syringes and the pipette tips are separately arranged. The rotation cylinder can be used to drive the pipette tip for angle adjustment, reducing the complexity of operation, greatly improving the efficiency of simultaneously handling multi-channel pipetting tasks, and ensuring the stability and accuracy during the pipetting process.

[0011] In one embodiment, the push-pull assembly further includes a linear motor installed on the side of the moving plate away from the fixed plate; the linear motor is connected to the moving plate.

[0012] In one embodiment, sliding grooves are respectively provided on opposite sides of the main body of the linear module, and rollers are respectively rotatably installed on opposite sides of the surface of the moving plate facing the linear module, and the rollers are fitted and embedded inside the sliding grooves.

[0013] In one embodiment, a first slot is provided at one end of the fixed plate close to the syringe barrel; a second slot is provided on the bottom surface of the swing frame; one end of the hose passes through the second slot and then is connected to the pipette tip, and the other end of the hose passes through a slot and then is connected to the syringe barrel.

[0014] In one embodiment, the pipette tip assembly further includes limit pins screwed to the four opposite corners of the bottom surface of the swing frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a perspective view of the multi-channel pipettor structure according to an embodiment of the present invention;

[0016] Figure 2 is Figure 1 a perspective view of the multi-channel pipettor structure shown from another angle;

[0017] Figure 3 is Figure 2 an exploded view of the multi-channel pipettor structure shown.

[0018] Explanation of the reference numerals in the drawings;

[0019] 10 - linear module, 11 - sliding groove;

[0020] 20 - push-pull assembly, 21 - fixed plate, 210 - first slot, 22 - moving plate, 220 - roller, 23 - syringe, 231 - syringe barrel, 232 - piston rod, 24 - linear motor;

[0021] 30 - pipette tip assembly, 31 - rotation cylinder, 32 - swing frame, 320 - second slot, 33 - pipette tip, 34 - limit pin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present utility model more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0025] Please refer to Figures 1 to 3 , which is a multi-channel liquid transfer device structure according to an embodiment of the present utility model, including a linear module 10, a push-pull assembly 20 installed on one side of the linear module 10, and a suction head assembly 30 installed at one end of the linear module 10.

[0026] The push-pull assembly 20 includes a fixing plate 21 fixedly installed on the main body of the linear module 10, a moving plate 22 slidably installed on one side of the fixing plate 21, a plurality of syringes 23 connected between the fixing plate 21 and the moving plate 22, and a linear motor 24 installed on the side of the moving plate 22 away from the fixing plate 21. Among them, the barrel 231 of the syringe 23 is installed on the fixing plate 21, and the piston rod 232 of the syringe 23 is installed on the moving plate 22. The moving plate 22 is slidably connected to the main body of the linear module 10; the linear motor 24 is connected to the moving plate 22, and by controlling the expansion and contraction of the linear motor 24, the moving plate 22 can be driven to move along the length direction of the linear module 10. In this way, when the moving plate 22 moves, the piston rod 232 will also move accordingly, thereby generating a push-pull action in the barrel 231, thus realizing the precise transfer of liquid.

[0027] In this embodiment, a first slot 210 is provided at one end of the fixing plate 21 close to the barrel 231.

[0028] In this embodiment, sliding grooves 11 are respectively provided on opposite sides of the main body of the linear module 10, and rollers 220 are respectively rotatably installed on opposite sides of the surface of the moving plate 22 facing the linear module 10. The rollers 220 are fitted into the interior of the sliding grooves 11 to realize the sliding connection between the moving plate 22 and the main body of the linear module 10.

[0029] The suction head assembly 30 includes a rotary cylinder 31 fixedly installed on opposite sides at one end of the linear module 10, a swing frame 32 connecting the two rotary cylinders 31, a plurality of suction heads 33 installed on the bottom surface of the swing frame 32, and limit pins 34 screwed to opposite four corners of the bottom surface of the swing frame 32; the limit pins 34 are used to prevent the suction heads 33 from extending excessively into the interior of the container.

[0030] Specifically, the suction heads 33 correspond one-to-one with the syringes 231. As Figure 1 and Figure 2 shown by the dotted lines in, the suction heads 33 are connected upward to the syringes 231 through hoses (not shown in the figure), realizing the matching connection between the suction heads 33 and the syringes 23. During operation, the rotary cylinder 31 can control the rotation angle of the swing frame 32 to adjust the position of the suction heads 33, so that the suction heads 33 can adapt to different working environments and liquid transfer requirements.

[0031] In this embodiment, a second slot 320 is provided on the bottom surface of the swing frame 32. One end of the hose passes through the second slot 320 and then connects to the suction head 33, and the other end of the hose passes through a slot 210 and then connects to the syringe 231. The second slot 320 and the first slot 210 not only provide a passage for the hose to pass through, but also facilitate the fixing and restraint of the hose, improving the overall stability and neatness of the device.

[0032] The above multi-channel liquid transfer device has a simple structure and is easy to use. It has a plurality of syringes 23, and the syringes 23 and the suction heads 33 are separately arranged. The rotary cylinder 31 can be used to drive the suction heads 33 to adjust the angle, reducing the complexity of the operation, greatly improving the efficiency of simultaneously processing multi-channel liquid transfer tasks, and ensuring the stability and accuracy during the liquid transfer process.

[0033] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0034] The above-described embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A multiplexer liquid displacement device structure, characterized in that: include: Linear modules; A push-pull assembly mounted on one side of the linear module; the push-pull assembly includes a fixed plate fixedly mounted on the main body of the linear module, a movable plate slidably mounted on one side of the fixed plate, and a plurality of syringes connected between the fixed plate and the movable plate; the syringe barrels are mounted on the fixed plate, and the piston rods of the syringes are mounted on the movable plate; the movable plate is slidably connected to the main body of the linear module; and A suction head assembly is installed at one end of the linear module; the suction head assembly includes a rotary cylinder fixedly installed on opposite sides of one end of the linear module, a swing frame connecting the two rotary cylinders, and a plurality of suction heads installed on the bottom surface of the swing frame; the suction heads correspond to the syringes one by one, and the suction heads are connected to the syringes upward through a hose.

2. The multiplexer structure according to claim 1, characterized in that: The push-pull assembly also includes a linear motor installed on a side of the moving plate away from the fixed plate; the linear motor is connected to the moving plate.

3. The multiplexer structure according to claim 1, characterized in that: Slide grooves are respectively arranged on opposite sides of the main body of the linear module, and rollers are rotatably installed on opposite sides of the movable plate facing the linear module, and the rollers are matched and embedded in the slide grooves.

4. The multiplexer structure according to claim 1, characterized in that: A first slot is arranged on one end of the fixed plate close to the syringe; a second slot is arranged on the bottom surface of the swing frame; one end of the hose is connected to the suction head after passing through the second slot, and the other end of the hose is connected to the syringe after passing through a slot.

5. The multiplexer structure according to claim 1, characterized in that: The suction head assembly also includes limit pins which are screwed to four opposite corners of the bottom surface of the swing frame.

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