Pipetting mechanism and liquid workstation

Abstract

The utility model relates to a pipetting mechanism and a liquid workstation, the pipetting mechanism comprises a mounting rack, a plurality of first slide rails, a plurality of pipetting modules and a plurality of driving modules, the plurality of first slide rails are arranged on the mounting rack at intervals; the plurality of pipetting modules are correspondingly arranged on the plurality of first sliding rails in a sliding manner and are correspondingly in transmission connection with the plurality of driving modules, and each pipetting module comprises a pipetting head for sucking and discharging liquid. According to the pipetting mechanism provided by the invention, the driving module drives the pipetting module to slide on the corresponding first sliding rail so as to change the position of the pipetting head and further adjust the distance between any two pipetting heads, so that when the distance between the liquid storage tanks of the sampling container is changed, the pipetting head can be moved to the liquid storage tanks of the sampling container; and each pipetting head on each pipetting module can correspondingly extend into the liquid storage tank of the sampling container to perform liquid suction and drainage operation. Due to the fact that the positions of the pipetting heads are adjusted independently, when the distance between the liquid storage tanks is changed, liquid suction and drainage operation can be carried out on the liquid storage tanks with different distances only by changing the distance between the at least two pipetting heads.

Description

Technical Field

[0001] The present application relates to the technical field of liquid transfer equipment, and in particular to a liquid transfer mechanism and a liquid workstation. Background Art

[0002] With the rapid development of science and technology, in the fields of medicine, physics, chemistry, biology, etc., for the purpose of sampling, proportioning, etc., it is often necessary to take out a small amount of liquid from a certain reagent and mix the taken out reagent with another reagent. If the liquid is pipetted by manual operation, the reliability of sample preparation is often seriously affected by the operator's operating errors, and the operator's health will also be affected during the long sample preparation process. Therefore, the pipetting of reagents or other liquids is usually completed through a liquid handling workstation, and in order to improve the pipetting efficiency of the liquid handling workstation, the liquid handling workstation usually sets multiple pipetting modules to perform pipetting work simultaneously, or uses a multi-channel pipetting module to complete the liquid pipetting work.

[0003] At present, multi-channel pipetting modules are usually equipped with pipetting heads with fixed spacing. Multi-channel pipetting modules can only be used interactively with sampling containers (such as microplates) with the same spacing between each liquid reservoir, resulting in a small scope of application of the multi-channel pipetting module. When pipetting sampling containers with different spacings between each liquid reservoir, it is necessary to frequently replace multi-channel pipetting modules of corresponding specifications, which seriously increases the cost of liquid pipetting. Summary of the invention

[0004] Based on this, it is necessary to provide a pipetting mechanism and a liquid workstation to address the problem that the existing multi-channel pipetting module has a small application range.

[0005] A liquid transfer mechanism, comprising a mounting frame, a plurality of first slide rails, a plurality of liquid transfer modules and a plurality of drive modules, wherein:

[0006] A plurality of the first slide rails are spaced apart and arranged on the mounting frame;

[0007] The plurality of liquid transfer modules are correspondingly slidably arranged on the plurality of the first slide rails, and correspondingly transmission-connected to the plurality of driving modules. The liquid transfer module comprises a liquid transfer head for aspirating and discharging liquid.

[0008] In one embodiment, the pipetting mechanism further includes a plurality of sliders, the plurality of sliders are slidably disposed on the plurality of first slide rails, and the plurality of pipetting modules are disposed on the plurality of sliders.

[0009] In one embodiment, a plurality of first slide rails are arranged at intervals along a direction perpendicular to the extension direction of the first slide rail, and the extension directions of the plurality of first slide rails are consistent.

[0010] In one embodiment, the pipetting module further comprises a body, and the pipetting head is connected to the body;

[0011] The driving module includes a driving source, which is disposed on the body and is used to drive the body to move along an extension direction of the first slide rail.

[0012] In one embodiment, the pipetting mechanism further includes a synchronous belt, the synchronous belt is fixed to the mounting frame, the extension direction of the synchronous belt is consistent with the extension direction of the first slide rail, and the driving module further includes a synchronous wheel, the synchronous wheel is connected to the output end of the driving source;

[0013] The synchronous belt is wound around the outside of the plurality of synchronous wheels at the same time, and the plurality of synchronous wheels are meshed with the synchronous belt at intervals and can move on the synchronous belt.

[0014] In one embodiment, the driving module further includes a bracket, the bracket is disposed on the body, and the driving source is disposed on the bracket.

[0015] In one of the embodiments, the driving module further includes at least one guide wheel, the guide wheel is disposed on the bracket, the guide wheel is pressed on the outside of the synchronous belt and is close to the synchronous wheel.

[0016] In one embodiment, the body includes a carrier plate and a carrier rack, the carrier plate is slidably disposed on the first slide rail, the carrier rack is slidably disposed on the carrier plate along the axial direction of the pipetting head, and the pipetting head is disposed on the carrier rack.

[0017] In one of the embodiments, the carrier plate is provided with a second slide rail, the extension direction of the second slide rail is consistent with the axial direction of the pipetting head, and the carrier is slidably disposed on the second slide rail.

[0018] A liquid workstation comprises at least one liquid transfer mechanism as described in any one of the above technical solutions.

[0019] The above-mentioned pipetting mechanism and liquid workstation drive the pipetting module to slide on the corresponding first slide rail through the driving module to change the position of the pipetting head, and then adjust the distance between any two pipetting heads, so that when the distance between each liquid storage tank of the sampling container changes, each pipetting head on each pipetting module can be correspondingly extended into the liquid storage tank of the sampling container to perform liquid suction and discharge operations. The pipetting mechanism provided by the present application has independent position adjustment of each pipetting head. When the distance between the liquid storage tanks changes, there is no need to frequently replace the pipetting mechanism of the corresponding specification. It only needs to change the distance between at least two pipetting heads to perform liquid suction and discharge operations on liquid storage tanks with different distances, thereby improving the application range of the pipetting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the structure of the pipetting mechanism provided in some embodiments.

[0021] Figure 2 1 is a top view of a pipetting mechanism provided in some embodiments.

[0022] Figure 3 for Figure 2 A partial enlarged view of area A.

[0023] Figure 4 Schematic diagram of the structure of the pipetting mechanism provided in some embodiments.

[0024] Reference numerals:

[0025] 100. Liquid transfer mechanism;

[0026] 110, mounting frame; 120, first slide rail; 120a, first slide rail a; 120b, first slide rail b; 130, pipetting module; 131, pipetting head; 132, body; 1321, carrier plate; 1322, carrier; 130a, first pipetting module; 130b, second pipetting module; 140, driving module; 141, driving source; 142, synchronous wheel; 143, bracket; 144, guide wheel; 140a, first driving module; 140b, second driving module; 150, slider; 160, synchronous belt; 170, second slide rail. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0028] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the 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 therefore cannot be understood as a limitation on the present application.

[0029] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0030] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0031] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0033] The technical solution provided by the embodiments of the present application is described below in conjunction with the accompanying drawings.

[0034] See also Figure 1As shown, the present application provides a pipetting mechanism 100, which includes a mounting frame 110, a plurality of first slide rails 120, a plurality of pipetting modules 130, and a plurality of driving modules 140, wherein the plurality of first slide rails 120 are spaced apart from each other on the mounting frame 110. The pipetting mechanism 100 is configured to perform pipetting operations such as sampling, placing, mixing, etc. of a liquid medium such as a reagent in a sampling container (such as a microplate, etc.).

[0035] Multiple transfer modules 130 are slidably disposed on multiple first rails 120, and multiple transfer modules 130 are correspondingly connected to multiple drive modules 140. Exemplarily, the number of transfer modules 130 is consistent with that of the first rails 120 and the drive modules 140, and each first rail 120 is correspondingly slidably disposed with a transfer module 130, and each transfer module 130 is correspondingly connected to a drive module 140, and the drive module 140 is used to drive the transfer module 130 to slide on the corresponding first rail 120 to adjust the position of the transfer module 130. The transfer module 130 includes a transfer head 131, which can be correspondingly extended into the liquid storage tank of the sampling container to perform liquid suction and discharge operations to complete the transfer operation of the liquid by the transfer mechanism 100.

[0036] The above-mentioned pipetting mechanism 100 drives the pipetting module 130 to slide on the corresponding first slide rail 120 through the driving module 140 to change the position of the pipetting head 131, and then adjust the distance between any two pipetting heads 131, so that when the distance between each liquid storage tank of the sampling container changes, each pipetting head 131 on each pipetting module 130 can be correspondingly extended into the liquid storage tank of the sampling container to perform liquid suction and discharge operations. The pipetting mechanism 100 provided by the present application has the position adjustment of each pipetting head 131 independent of each other. When the distance between the liquid storage tanks changes, there is no need to frequently replace the pipetting mechanism 100 of the corresponding specification. It is only necessary to change the distance between at least two pipetting heads 131 to perform liquid suction and discharge operations on liquid storage tanks with different distances, thereby improving the application range of the pipetting mechanism 100.

[0037] In one embodiment, refer to Figure 1As shown, the liquid transfer mechanism 100 further includes a plurality of sliders 150, which are slidably disposed on the plurality of first rails 120, and the plurality of liquid transfer modules 130 are correspondingly disposed on the plurality of sliders 150. That is, the number of sliders 150, the first rails 120 and the liquid transfer modules 130 is the same, and each first rail 120 is slidably disposed with a slider 150, and each slider 150 is correspondingly disposed with a liquid transfer module 130. In this way, when the position of the liquid transfer module 130 needs to be adjusted, the slider 150 slides on the corresponding first rail 120 to drive the corresponding liquid transfer module 130 to slide along the extension direction of the first rail 120, thereby adjusting the position of the liquid transfer module 130 to adjust the distance between any two liquid transfer heads 131. When the distance between the liquid storage tanks of the sampling container changes, the liquid transfer heads 131 on the liquid transfer modules 130 can be correspondingly extended into the liquid storage tank of the sampling container to perform liquid suction and discharge operations.

[0038] Further, see Figure 1 As shown, along the direction perpendicular to the extension of the first slide rail 120, multiple first slide rails 120 are arranged at intervals, and the extension directions of the multiple first slide rails 120 are consistent. Figure 2 Taking the perspective as an example, multiple first slide rails 120 are spaced apart in the vertical direction, and the extension directions of the multiple first slide rails 120 are all horizontal directions, so that multiple pipetting modules 130 can independently move in the horizontal direction to adjust the distance between any two pipetting heads 131 in the horizontal direction.

[0039] In one embodiment, refer to Figure 1 , Figure 3 and Figure 4 As shown, the liquid transfer module 130 also includes a body 132, and the liquid transfer head 131 is connected to the body 132. The driving module 140 includes a driving source 141, which is arranged on the body 132 by welding, screwing, etc. The driving source 141 is used to drive the body 132 to move along the extension direction of the first slide rail 120. As in the present embodiment, when the position of the liquid transfer module 130 needs to be adjusted, the driving source 141 outputs power to the body 132, and the driving source 141 drives the body 132 to move along the extension direction of the first slide rail 120, so that the position of the liquid transfer module 130 in the horizontal direction changes, and then the distance between any two liquid transfer heads 131 is adjusted, so that when the distance between each liquid storage tank of the sampling container changes, each liquid transfer head 131 on each liquid transfer module 130 can be correspondingly extended into the liquid storage tank of the sampling container to perform liquid suction and discharge operations.

[0040] In this embodiment, the driving source 141 may be a driving motor, and the body 132 is connected to the output end of the driving motor, and the driving motor may drive the liquid transfer module 130 to move along the extension direction of the first slide rail 120. Of course, in other feasible embodiments, the driving source 141 may also be a driving cylinder, a driving electric cylinder, or other components capable of outputting power, and the specific component type of the driving source 141 is not limited in this application.

[0041] Further, see Figure 1 , Figure 3 and Figure 4 As shown, the liquid transfer mechanism 100 further includes a synchronous belt 160. The synchronous belt 160 is fixed to the mounting frame 110, and the extending direction of the synchronous belt 160 is consistent with the extending direction of the first slide rail 120. For example, in this embodiment, the extending direction of the synchronous belt 160 is Figure 2 The drive module 140 further includes a synchronous wheel 142, which is connected to the output end of the drive source 141, wherein the synchronous belt 160 is wound around the outside of a plurality of synchronous wheels 142 at the same time, and the plurality of synchronous wheels 142 are meshed with the synchronous belt 160 at intervals, such as the plurality of synchronous wheels 142 are meshed with the synchronous belt 160 at intervals along the extension direction of the synchronous belt 160, and the plurality of synchronous wheels 142 can move on the synchronous belt 160. For example, in the present embodiment, the outer surface of the synchronous wheel 142 has outer gear teeth in the circumferential direction, and the inner surface of the synchronous belt 160 has inner gear teeth meshed with the outer gear teeth. Through the meshing of the outer gear teeth and the inner gear teeth, the plurality of synchronous wheels 142 can be meshed with the synchronous belt 160 at the same time, and the plurality of synchronous wheels 142 can move independently on the synchronous belt 160.

[0042] In the above-mentioned pipetting mechanism 100, the driving source 141 outputs power to the synchronous wheel 142, and the synchronous wheel 142 rotates to change the meshing position with the synchronous belt 160. The synchronous wheel 142 moves on the synchronous belt 160. Since the synchronous wheel 142 is indirectly connected to the pipetting module 130 through the driving source 141, the movement of the synchronous wheel 142 on the synchronous belt 160 can drive the pipetting module 130 to move, and then adjust the distance between any two pipetting heads 131, so that when the distance between each liquid storage tank of the sampling container changes, each pipetting head 131 on each pipetting module 130 can be correspondingly extended into the liquid storage tank of the sampling container to perform liquid suction and discharge operations.

[0043] It should be noted that the movement and adjustment of the liquid transfer module 130 is not limited to the cooperation between the synchronous wheel 142 and the synchronous belt 160 provided above, and the movement and adjustment of the liquid transfer module 130 can also be achieved through the cooperation transmission mode between the gear and the rack. Exemplarily, the gear is connected to the output end of the driving source 141, and the extension direction of the rack is consistent with the extension direction of the first slide rail 120. When the driving source 141 outputs power to the gear, the gear rotates to change the meshing position with the rack. The gear moves on the rack and drives the liquid transfer module 130 to move along the extension direction of the first slide rail 120 to adjust the distance between any two liquid transfer heads 131.

[0044] In order to fix the driving module 140 to the liquid transfer module 130, in one embodiment, refer to Figure 1 As shown, the driving module 140 also includes a bracket 143. The bracket 143 is arranged on the body 132 by screw connection, welding, etc., and the driving source 141 is arranged on the bracket 143 by welding, screw connection, etc., and the driving source 141 is indirectly connected to the liquid transfer module 130 through the bracket 143. When the driving source 141 outputs power to the synchronous wheel 142, the synchronous wheel 142 rotates to change the meshing position with the synchronous belt 160, and the synchronous wheel 142 moves on the synchronous belt 160. The movement of the synchronous wheel 142 on the synchronous belt 160 can drive the liquid transfer module 130 to move, thereby adjusting the distance between any two liquid transfer heads 131. In the process of the movement of the liquid transfer module 130, the driving module 140 can follow the corresponding liquid transfer module 130, that is, when the liquid transfer module 130 moves, it can drive the corresponding driving module 140 to move synchronously along the extension direction of the first slide rail 120.

[0045] Further, see Figure 1 , Figure 3 and Figure 4 As shown, the driving module 140 further includes at least one guide wheel 144. The guide wheel 144 is disposed on the bracket 143, and the guide wheel 144 is pressed on the outer side of the synchronous belt 160, and the guide wheel 144 is close to the synchronous wheel 142. By pressing the guide wheel 144 on the outer side of the synchronous belt 160, the tension of the synchronous belt 160 can be increased, and the meshing length between the synchronous belt 160 and the synchronous wheel 142 is increased, thereby improving the meshing movement stability of the synchronous wheel 142 on the synchronous belt 160, thereby increasing the movement stability of the liquid transfer module 130 on the first slide rail 120. Preferably, the driving module 140 includes two guide wheels 144, and the two guide wheels 144 are spaced and pressed on the outer side of the synchronous belt 160, and the two guide wheels 144 are respectively located on both sides of the synchronous wheel 142, so that the meshing length of the synchronous belt 160 meshing on both sides of the synchronous wheel 142 is consistent, which facilitates the meshing movement of the synchronous wheel 142 on the synchronous belt 160.

[0046] In one embodiment, refer to Figure 1As shown, the body 132 includes a carrier plate 1321 and a carrier 1322. The carrier plate 1321 is slidably disposed on the first slide rail 120 to slide the liquid transfer module 130 on the first slide rail 120, and the carrier 1322 is slidably disposed on the carrier plate 1321 along the axial direction of the liquid transfer head 131. The liquid transfer head 131 is disposed on the carrier 1322 so that the liquid transfer head 131 can move along its axial direction. Figure 1 For example, when the pipetting head 131 needs to be inserted into the liquid storage tank of the sampling container to perform aspiration and discharge operations, the pipetting head 131 is moved along Figure 1 The pipette head 131 moves vertically downward to the inside of the liquid storage tank to perform the suction and discharge operation, and after the suction and discharge operation of the pipette head 131 is completed, the pipette head 131 moves along Figure 1 The vertical upward movement shown is to exit the liquid storage tank, so as to facilitate the transfer of the sampling container to the next process after the aspiration and drainage is completed, or to replace the sampling container after the aspiration and drainage is completed.

[0047] Specifically, see Figure 1 As shown, the carrier 1321 is provided with a second slide rail 170, and the extension direction of the second slide rail 170 is consistent with the extension direction of the pipetting head 131. For example, in this embodiment, the extension direction of the second slide rail 170 is Figure 1 In the vertical direction shown, the carrier 1322 is slidably disposed on the second slide rail 170. When the pipette head 131 needs to be inserted into or withdrawn from the liquid storage tank, the carrier 1322 moves on the second slide rail 170 to drive the pipette head 131 to be inserted into the liquid storage tank of the sampling container to perform aspiration and discharge operations, or to drive the pipette head 131 to withdraw from the liquid storage tank of the sampling container, so as to facilitate the transfer of the sampling container to the next process after the aspiration and discharge is completed or to replace the sampling container after the aspiration and discharge is completed.

[0048] Also, see Figure 1 As shown, the present application also provides a liquid workstation. The liquid workstation includes at least one liquid transfer mechanism 100 of the above scheme, and the liquid workstation is configured to perform liquid transfer operations such as sampling, placing, mixing, etc. of liquid media such as reagents in a sampling container (such as a microplate).

[0049] In the above-mentioned liquid workstation, the position adjustment of each pipetting module 130 is independent of each other. When the spacing between the liquid storage tanks of the sampling container is changed, there is no need to frequently replace the corresponding specification of the pipetting mechanism 100. It is only necessary to change the spacing between at least two pipetting heads 131 to perform liquid suction and discharge operations on liquid storage tanks with different spacings, thereby improving the applicability of the liquid workstation.

[0050] The following combination Figure 1-Figure 4The spacing adjustment action of the pipetting mechanism 100 provided in the present application for the pipetting head 131 is described in detail. Taking the adjustment of the spacing between two pipetting modules 130 as an example, the two pipetting modules 130 are defined as a first pipetting module 130a and a second pipetting module 130b, respectively. At this time, the first pipetting module 130a is slidably disposed on the first slide rail a120a, and the first pipetting module 130a is transmission-connected to the first driving module 140a, and the second pipetting module 130b is slidably disposed on the first slide rail b120b, and the second pipetting module 130b is transmission-connected to the second driving module 140b, wherein the first pipetting module 130a and the second pipetting module 130b are spaced apart along the extension direction of the first slide rail 120.

[0051] When the distance between the first transfer module 130a and the second transfer module 130b needs to be adjusted, there are three adjustment methods: ①, the first driving module 140a outputs power, so that the first driving module 140a drives the first transfer module 130a to slide on the first slide rail a120a, and the first transfer module 130a moves toward or away from the second transfer module 130b, thereby adjusting the distance between the first transfer module 130a and the second transfer module 130b. ②, the second driving module 140b outputs power, so that the second driving module 140b drives the second transfer module 130b to slide on the first slide rail b120b, and the second transfer module 130b moves toward or away from the first transfer module 130a, thereby adjusting the distance between the first transfer module 130a and the second transfer module 130b. ③. The first driving module 140a outputs power, so that the first driving module 140a drives the first liquid transfer module 130a to slide on the first slide rail a120a. At the same time, the second driving module 140b outputs power, so that the second driving module 140b drives the second liquid transfer module 130b to slide on the first slide rail b120b, so that the first liquid transfer module 130a and the second liquid transfer module 130b move in a direction closer to or away from each other, thereby adjusting the distance between the first liquid transfer module 130a and the second liquid transfer module 130b.

[0052] Of course, when adjusting the spacing between other numbers of pipetting modules 130, the process is similar to the above process and will not be repeated here.

[0053] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, 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, they should be considered to be within the scope of this specification.

[0054] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A liquid transfer mechanism, characterized in that: The pipetting mechanism comprises a mounting frame, a plurality of first slide rails, a plurality of pipetting modules and a plurality of driving modules, wherein: A plurality of the first slide rails are spaced apart and arranged on the mounting frame; The plurality of liquid transfer modules are correspondingly slidably arranged on the plurality of the first slide rails, and correspondingly transmission-connected to the plurality of driving modules. The liquid transfer module comprises a liquid transfer head for aspirating and discharging liquid.

2. The liquid transfer mechanism according to claim 1, characterized in that: The transfer mechanism further includes a plurality of slide blocks, wherein the plurality of slide blocks are correspondingly slidably disposed on the plurality of first slide rails, and the plurality of transfer modules are correspondingly disposed on the plurality of slide blocks.

3. The liquid transfer mechanism according to claim 1, characterized in that: Along a direction perpendicular to the extension direction of the first slide rail, a plurality of the first slide rails are arranged at intervals, and the extension directions of the plurality of the first slide rails are consistent.

4. The liquid transfer mechanism according to claim 1, characterized in that: The pipetting module also includes a body, and the pipetting head is connected to the body; The driving module includes a driving source, which is disposed on the body and is used to drive the body to move along an extension direction of the first slide rail.

5. The liquid transfer mechanism according to claim 4, characterized in that: The liquid transfer mechanism further includes a synchronous belt, which is fixed to the mounting frame, and the extending direction of the synchronous belt is consistent with the extending direction of the first slide rail. The driving module further includes a synchronous wheel, which is connected to the output end of the driving source; The synchronous belt is wound around the outside of the plurality of synchronous wheels at the same time, and the plurality of synchronous wheels are meshed with the synchronous belt at intervals and can move on the synchronous belt.

6. The liquid transfer mechanism according to claim 5, characterized in that: The driving module further includes a bracket, the bracket is arranged on the body, and the driving source is arranged on the bracket.

7. The liquid transfer mechanism according to claim 6, characterized in that: The driving module also includes at least one guide wheel, which is arranged on the bracket, and the guide wheel is pressed on the outside of the synchronous belt and close to the synchronous wheel.

8. The liquid transfer mechanism according to claim 4, characterized in that: The body comprises a carrier plate and a carrier rack. The carrier plate is slidably disposed on the first slide rail. The carrier rack is slidably disposed on the carrier plate along the axial direction of the liquid transfer head. The liquid transfer head is disposed on the carrier rack.

9. The liquid transfer mechanism according to claim 8, characterized in that: The carrier plate is provided with a second slide rail, the extension direction of the second slide rail is consistent with the axial direction of the pipetting head, and the carrier is slidably arranged on the second slide rail.

10. A liquid workstation, characterized in that: The liquid workstation comprises at least one pipetting mechanism according to any one of claims 1 to 9.

Images