Equipment capable of realizing multi-channel free pitch change and independent vertical movement

Abstract

The utility model provides equipment capable of realizing multi-channel free pitch change and independent vertical movement, when the equipment is used, the transverse pitch change guide rail bottom plate can be fixed on a machine base, and if the multi-channel free pitch change needs to be realized, the transverse pitch change guide rail bottom plate is fixed; each pipettor mounting mechanism can be driven to move left and right through the respective transverse variable-pitch driving device, so that the distance between the pipettor mounting mechanisms can be adjusted; if the independent vertical movement needs to be realized, each pipettor mounting mechanism can drive the respective pipettor mounting seat to independently and vertically move through the respective vertical movement driving device, and after the pipettors are mounted, the independent vertical movement and the free spacing change of the plurality of pipettors can be realized through the operation. According to the utility model, the free distance change between the channels can be realized, and the independent vertical movement of each channel can be realized, so that the multi-channel pipettor arranged on the multi-channel pipettor can better meet the experiment requirements.

Description

Technical Field

[0001] This utility model relates to the field of biomedical research technology, and in particular to the field of variable distance and independent vertical movement technology between multi-channel pipettes, specifically referring to a device that can realize free variable distance and independent vertical movement of multiple channels. Background Technology

[0002] Biomedical research refers to the application of theories and methods from disciplines such as biology, medicine, and biotechnology to conduct research related to new drug development, disease diagnosis, prevention, and treatment. The core of biomedical research is the integration of modern biotechnology with new drug development and production, aiming to improve medical standards and human health.

[0003] To accelerate biomedical research, there is a need to develop fully automated experimental equipment. This equipment can automatically handle experimental consumables and materials, reducing manual labor and significantly improving experimental efficiency. Multi-channel pipettes are typically used in fully automated equipment to handle the required liquids. To meet experimental needs, multi-channel pipettes must possess XYZ (lateral, longitudinal, and vertical) three-dimensional motion capabilities and variable channel spacing. Z-axis motion is divided into two types: overall multi-channel motion and independent motion of individual channels within a multi-channel system. Independent motion of individual channels effectively enhances experimental adaptability and flexibility, offering a significant technological advantage. Variable channel spacing can be categorized into fixed-spacing and free-spacing. Free-spacing allows the channel spacing to be freely set within a certain range, and the spacing of each channel does not need to be identical. This enables each channel to correspond to different liquid positions of experimental consumables, better meeting various special needs in actual experiments.

[0004] Therefore, developing a structural device that combines independent Z-axis motion and free pitch function while meeting the installation requirements of pipettes in biochemical experimental equipment can greatly promote the application and promotion of fully automated experimental equipment in the biomedical field. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, one objective of this utility model is to provide a device that can realize free variable distance and independent vertical movement of multiple channels. It can realize free variable distance between channels and realize independent vertical movement of each channel, so that the multi-channel pipette installed on it can better meet the experimental needs and is suitable for large-scale promotion and application.

[0006] Another objective of this invention is to provide a device that can achieve multi-channel free pitch variation and independent vertical movement. It is ingeniously designed, has a simple structure, is easy to manufacture, has low manufacturing cost, and is suitable for large-scale promotion and application.

[0007] To achieve the above objectives, this utility model provides a device capable of multi-channel free-range and independent vertical movement, characterized by including a transverse guide rail mechanism and a pipette mounting mechanism, wherein:

[0008] The transverse guide rail mechanism includes a transverse variable pitch guide rail base plate and a transverse variable pitch guide rail. Both the transverse variable pitch guide rail base plate and the transverse variable pitch guide rail are vertically arranged and both are arranged in the left-right direction. The transverse variable pitch guide rail is located in front of the transverse variable pitch guide rail base plate and is connected to the transverse variable pitch guide rail base plate.

[0009] The pipette mounting mechanism includes a horizontal variable pitch slide, a horizontal variable pitch drive device, a pipette mounting base, a vertical motion guide rail, and a vertical motion drive device. The horizontal variable pitch slide is vertically arranged and extends along the front-to-back direction. The horizontal variable pitch slide is located in front of the horizontal variable pitch guide rail and is movably connected to the horizontal variable pitch guide rail. The horizontal variable pitch drive device is installed inside the horizontal variable pitch slide and connected to the bottom plate of the horizontal variable pitch guide rail to drive the bottom plate of the horizontal variable pitch guide rail to move left and right. The vertical motion guide rail is vertically arranged and extends along the left-to-right direction. The vertical motion guide rail is located in front of the horizontal variable pitch slide and is connected to the horizontal variable pitch slide. The pipette mounting base is located in front of the vertical motion guide rail and is movably connected to the vertical motion guide rail. The vertical motion drive device is installed on the horizontal variable pitch slide and connected to the pipette mounting base to drive the pipette mounting base to move vertically. The front side of the pipette mounting base is used to mount a pipette.

[0010] The number of pipette mounting mechanisms is multiple, and the multiple pipette mounting mechanisms are arranged sequentially on the left and right sides.

[0011] Preferably, there are multiple transverse pitch guide rails, and the multiple transverse pitch guide rails are arranged vertically at intervals.

[0012] Preferably, the lateral pitch-changing drive device includes a lateral pitch-changing synchronous belt pulley and a lateral pitch-changing drive component. The lateral guide rail mechanism further includes a lateral pitch-changing synchronous belt, which is vertically arranged and positioned along the left-right direction. The lateral pitch-changing synchronous belt is located in front of the lateral pitch-changing guide rail base plate and above or below the lateral pitch-changing guide rail. The left and right ends of the lateral pitch-changing synchronous belt are respectively connected to the lateral pitch-changing guide rail base plate. The lateral pitch-changing synchronous belt pulley is horizontally arranged and rotatably mounted within the lateral pitch-changing slide block. The lateral pitch-changing drive component is installed within the lateral pitch-changing slide block and connected to the lateral pitch-changing synchronous belt pulley to drive the lateral pitch-changing synchronous belt pulley to rotate horizontally. The lateral pitch-changing synchronous belt is movably inserted through the lateral pitch-changing slide block and is located behind the lateral pitch-changing synchronous belt pulley, engaging with the lateral pitch-changing synchronous belt pulley.

[0013] More preferably, the lateral pitch drive component is a motor.

[0014] More preferably, the transverse guide rail mechanism further includes a left base of the transverse variable pitch synchronous belt, a left pressure plate of the transverse variable pitch synchronous belt, a right base of the transverse variable pitch synchronous belt, and a right pressure plate of the transverse variable pitch synchronous belt. The left and right bases of the transverse variable pitch synchronous belt are both vertically arranged and along the front-rear direction, and are spaced apart from each other on the left and right sides. Both the left and right bases are located in front of and connected to the transverse variable pitch guide rail base plate. The left and right pressure plates of the transverse variable pitch synchronous belt are both vertically arranged and along the left-right direction, and are spaced apart from each other on the left and right sides. The left pressure plate and the right pressure plate of the lateral variable pitch synchronous belt are respectively located in front of the left base and the right base of the lateral variable pitch synchronous belt and are respectively connected to the left base and the right base of the lateral variable pitch synchronous belt. The left end of the lateral variable pitch synchronous belt is located between the left base and the left pressure plate and abuts against the left base and the left pressure plate, respectively. The right end of the lateral variable pitch synchronous belt is located between the right base and the right pressure plate and abuts against the right base and the right pressure plate, respectively.

[0015] Preferably, the pipette mounting mechanism further includes a lateral variable pitch guide slider, which is located in front of the lateral variable pitch guide and is movably connected to the lateral variable pitch guide. The lateral variable pitch slide is located in front of the lateral variable pitch guide slider and is connected to the lateral variable pitch guide slider.

[0016] Preferably, the vertical motion drive device includes a vertical motion drive wheel, a vertical motion driven wheel, a vertical motion timing belt, and a vertical motion drive component. Both the vertical motion drive wheel and the vertical motion driven wheel are vertically arranged and along the left-right direction, spaced apart vertically. The vertical motion driven wheel is located in front of the horizontal variable-pitch slide and rotatably connected to the horizontal variable-pitch slide in the front-back direction. The vertical motion drive component is mounted on the horizontal variable-pitch slide and connected to the vertical motion drive wheel to drive the vertical motion drive wheel to rotate in the front-back direction. The vertical motion timing belt is vertically arranged and along the left-right direction. The upper and lower ends of the vertical motion timing belt are respectively sleeved on the vertical motion drive wheel and the vertical motion driven wheel. The left side of the vertical motion timing belt is connected to the pipette mounting base.

[0017] More preferably, the vertical motion drive component is a motor.

[0018] More preferably, the vertical motion drive device further includes a vertical motion timing belt fixing plate, which is vertically arranged and along the front-back direction. The vertical motion timing belt fixing plate is located on the left side of the pipette mounting base and connected to the pipette mounting base. The left side of the vertical motion timing belt is located between the vertical motion timing belt fixing plate and the pipette mounting base and abuts against the vertical motion timing belt fixing plate and the pipette mounting base respectively.

[0019] Preferably, the number of pipette mounting mechanisms is eight.

[0020] The main beneficial effects of this utility model are as follows:

[0021] 1. When using the device of this utility model that enables free pitch variation and independent vertical movement of multiple channels, the horizontal pitch variation guide plate can be fixed to the base of, for example, a fully automated experimental equipment for biomedical research. If free pitch variation of multiple channels is required, since the horizontal pitch variation guide plate is fixed, each pipette mounting mechanism can be driven to move left and right through its respective horizontal pitch variation drive device, thereby adjusting the spacing between the pipette mounting mechanisms. If independent vertical movement is required, each pipette mounting mechanism can be driven to move its own pipette mounting base independently vertically through its respective vertical movement drive device. After the pipette is installed on the front side of the pipette mounting base of this utility model, the above operations can be used to achieve independent vertical movement and free pitch change of multiple pipettes, thereby completing the liquid processing process required for the experiment. Therefore, it can achieve free pitch variation between channels and can achieve independent vertical movement of each channel, so that the multi-channel pipette installed on it can better meet the experimental needs and is suitable for large-scale promotion and application.

[0022] 2. When using the device of this utility model that enables multi-channel free pitch variation and independent vertical movement, the horizontal pitch variation guide plate can be fixed to the base of, for example, a fully automated experimental equipment for biomedical research. If multi-channel free pitch variation is required, since the horizontal pitch variation guide plate is fixed, each pipette mounting mechanism can be driven to move left and right through its respective horizontal pitch variation drive device, thereby adjusting the spacing between the pipette mounting mechanisms. If independent vertical movement is required, each pipette mounting mechanism can be driven to move its respective pipette mounting base independently vertically through its respective vertical movement drive device. After the pipette is installed on the front side of the pipette mounting base of this utility model, the above operations can be used to achieve independent vertical movement and free pitch change of multiple pipettes, thereby completing the liquid processing process required for the experiment. Therefore, its design is ingenious, its structure is simple, its manufacturing is convenient, its manufacturing cost is low, and it is suitable for large-scale promotion and application.

[0023] These and other objects, features and advantages of this utility model will be fully apparent from the following detailed description and drawings, and can be achieved by the means, devices and combinations thereof specifically pointed out in the description of the utility model. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a specific embodiment of the device of this utility model that can realize multi-channel free pitch variation and independent vertical movement. Figure 1 Only four pipette mounting mechanisms are shown.

[0025] Figure 2 yes Figure 1 The three-dimensional schematic diagram of the specific embodiment shown Figure 2 Only one pipette mounting mechanism is shown.

[0026] Figure 3 yes Figure 1 A perspective view of the pipette mounting mechanism of a specific embodiment is shown.

[0027] (Symbol Explanation)

[0028] 1. Transverse guide rail mechanism; 11. Transverse variable pitch guide rail base plate; 12. Transverse variable pitch guide rail; 13. Transverse variable pitch synchronous belt; 14. Transverse variable pitch synchronous belt left base; 15. Transverse variable pitch synchronous belt left pressure plate; 16. Transverse variable pitch synchronous belt right base; 17. Transverse variable pitch synchronous belt right pressure plate.

[0029] 2. Pipette mounting mechanism; 21. Lateral variable pitch slide; 22. Lateral variable pitch drive device; 221. Lateral variable pitch synchronous belt pulley; 222. Lateral variable pitch drive component; 23. Pipette mounting base; 24. Vertical motion guide rail; 25. Vertical motion drive device; 251. Vertical motion driving wheel; 252. Vertical motion driven wheel; 253. Vertical motion synchronous belt; 254. Vertical motion drive component; 255. Vertical motion synchronous belt fixing plate; 26. Lateral variable pitch guide rail slider. Detailed Implementation

[0030] In order to better understand the technical content of this utility model, the following embodiments are provided for detailed description.

[0031] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Please see Figures 1-3As shown, in a specific embodiment of this utility model, the device of this utility model capable of multi-channel free pitch variation and independent vertical movement includes a transverse guide rail mechanism 1 and a pipette mounting mechanism 2, wherein:

[0033] The transverse guide rail mechanism 1 includes a transverse variable pitch guide rail base plate 11 and a transverse variable pitch guide rail 12. Both the transverse variable pitch guide rail base plate 11 and the transverse variable pitch guide rail 12 are vertically arranged and both are arranged in the left and right directions. The transverse variable pitch guide rail 12 is located in front of the transverse variable pitch guide rail base plate 11 and is connected to the transverse variable pitch guide rail base plate 11.

[0034] The pipette mounting mechanism 2 includes a horizontal variable pitch slide 21, a horizontal variable pitch drive device 22, a pipette mounting base 23, a vertical motion guide rail 24, and a vertical motion drive device 25. The horizontal variable pitch slide 21 is vertically arranged and positioned along the front-to-back direction. The horizontal variable pitch slide 21 is located in front of the horizontal variable pitch guide rail 12 and is movably connected to the horizontal variable pitch guide rail 12. The horizontal variable pitch drive device 22 is installed inside the horizontal variable pitch slide 21 and connected to the horizontal variable pitch guide rail base plate 11 to drive the horizontal variable pitch guide rail base plate 11 to move left and right. The vertical motion guide rail 24 is vertically arranged and arranged along the left and right directions. The vertical motion guide rail 24 is located in front of and connected to the horizontal variable pitch slide 21. The pipette mounting base 23 is located in front of and vertically movably connected to the vertical motion guide rail 24. The vertical motion drive device 25 is installed on the horizontal variable pitch slide 21 and connected to the pipette mounting base 23 to drive the pipette mounting base 23 to move vertically. The front side of the pipette mounting base 23 is used to mount a pipette.

[0035] The number of pipette mounting mechanisms 2 is multiple, and the multiple pipette mounting mechanisms 2 are arranged sequentially on the left and right sides.

[0036] The number of the transverse variable pitch guide rails 12 can be determined as needed. Preferably, there are multiple transverse variable pitch guide rails 12, which are vertically spaced apart from each other. The term "multiple" refers to two or more. Please refer to [link to relevant documentation]. Figures 1-2 As shown, in a specific embodiment of this utility model, the number of transverse variable pitch guide rails 12 is two.

[0037] The lateral pitch control device 22 can have any suitable configuration; please refer to [link / reference]. Figures 1-3As shown, in a specific embodiment of this utility model, the lateral pitch-changing drive device 22 includes a lateral pitch-changing synchronous belt pulley 221 and a lateral pitch-changing drive component 222. The lateral guide rail mechanism 1 also includes a lateral pitch-changing synchronous belt 13. The lateral pitch-changing synchronous belt 13 is vertically arranged and arranged along the left-right direction. The lateral pitch-changing synchronous belt 13 is located in front of the lateral pitch-changing guide rail base plate 11 and above or below the lateral pitch-changing guide rail 12. The left and right ends of the lateral pitch-changing synchronous belt 13 are respectively connected to the lateral guide rail base plate 11. The transverse pitch-changing synchronous pulley 221 is horizontally arranged and rotatably mounted within the transverse pitch-changing slide 21. The transverse pitch-changing drive component 222 is installed within the transverse pitch-changing slide 21 and connected to the transverse pitch-changing synchronous pulley 221 to drive its horizontal rotation. The transverse pitch-changing synchronous belt 13 is movably inserted through the transverse pitch-changing slide 21 and positioned behind and meshing with the transverse pitch-changing synchronous pulley 221. When there are two transverse pitch-changing guide rails 12, the transverse pitch-changing synchronous belt 13 is located between the two transverse pitch-changing guide rails 12.

[0038] The lateral pitch drive component 222 can be any suitable drive component. In a specific embodiment of this utility model, the lateral pitch drive component 222 is a motor.

[0039] The left and right ends of the transverse variable-pitch synchronous belt 13 are respectively connected to the transverse variable-pitch guide rail base plate 11. Any suitable structure can be used; please refer to [link / reference]. Figures 1-2As shown, in a specific embodiment of this utility model, the transverse guide rail mechanism 1 further includes a left base 14 of the transverse variable pitch synchronous belt, a left pressure plate 15 of the transverse variable pitch synchronous belt, a right base 16 of the transverse variable pitch synchronous belt, and a right pressure plate 17 of the transverse variable pitch synchronous belt. The left base 14 and the right base 16 of the transverse variable pitch synchronous belt are both vertically arranged and along the front-back direction, and are spaced apart from each other on the left and right. Both the left base 14 and the right base 16 are located in front of the transverse variable pitch guide rail base plate 11 and are connected to the transverse variable pitch guide rail base plate 11. The left pressure plate 15 and the right pressure plate 17 of the transverse variable pitch synchronous belt are both vertically arranged and along the left-right direction, and are spaced apart from each other on the left and right. The left pressure plate 15 of the synchronization belt and the right pressure plate 17 of the lateral pitch-changing synchronization belt are respectively located in front of the left base 14 and the right base 16 of the lateral pitch-changing synchronization belt and are respectively connected to the left base 14 and the right base 16 of the lateral pitch-changing synchronization belt. The left end of the lateral pitch-changing synchronization belt 13 is located between the left base 14 and the left pressure plate 15 of the lateral pitch-changing synchronization belt and abuts against the left base 14 and the left pressure plate 15 of the lateral pitch-changing synchronization belt. The right end of the lateral pitch-changing synchronization belt 13 is located between the right base 16 and the right pressure plate 17 of the lateral pitch-changing synchronization belt and abuts against the right base 16 and the right pressure plate 17 of the lateral pitch-changing synchronization belt. Thus, the left end and the right end of the transverse pitch synchronous belt 13 are fixed by the left base 14, the left pressure plate 15, the right base 16, and the right pressure plate 17 of the transverse pitch synchronous belt.

[0040] The transverse pitch sliding block 21 is located in front of the transverse pitch guide rail 12 and is movably connected to the transverse pitch guide rail 12. It can adopt any suitable structure; please refer to [link / reference needed]. Figures 1-3 As shown, in a specific embodiment of the present invention, the pipette mounting mechanism 2 further includes a transverse variable pitch guide slider 26, which is located in front of the transverse variable pitch guide 12 and is movably connected to the transverse variable pitch guide 12. The transverse variable pitch slide 21 is located in front of the transverse variable pitch guide slider 26 and is connected to the transverse variable pitch guide slider 26.

[0041] The vertical motion drive device 25 can have any suitable configuration; please refer to [link / reference]. Figures 1-3As shown, in a specific embodiment of this utility model, the vertical motion drive device 25 includes a vertical motion driving wheel 251, a vertical motion driven wheel 252, a vertical motion synchronous belt 253, and a vertical motion drive component 254. Both the vertical motion driving wheel 251 and the vertical motion driven wheel 252 are vertically arranged and along the left-right direction, and are spaced apart vertically. The vertical motion driven wheel 252 is located in front of the transverse variable pitch slide 21 and is rotatably connected to the transverse variable pitch slide 21 around the front-back direction. 1. The vertical motion drive component 254 is mounted on the transverse variable pitch slide 21 and connected to the vertical motion drive wheel 251 for driving the vertical motion drive wheel 251 to rotate around the front-back direction. The vertical motion timing belt 253 is vertically arranged and arranged along the left-right direction. The upper end and lower end of the vertical motion timing belt 253 are respectively sleeved on the vertical motion drive wheel 251 and the vertical motion driven wheel 252. The left side of the vertical motion timing belt 253 is connected to the pipette mounting base 23.

[0042] The vertical motion drive component 254 is mounted on the lateral variable pitch slide 21 and can be installed at any suitable position on the lateral variable pitch slide 21. (See also...) Figures 1-3 As shown, in a specific embodiment of the present invention, the vertical motion drive component 254 is mounted on the top of the transverse pitch slide 21.

[0043] The vertical driven wheel 252 is located in front of the transverse variable-pitch slide 21 and is rotatably connected to the transverse variable-pitch slide 21 about the front-back direction. It can be located in front of any suitable position of the transverse variable-pitch slide 21 and rotatably connected to the transverse variable-pitch slide 21 about the front-back direction at any suitable position. (See also...) Figures 1-3 As shown, in a specific embodiment of this utility model, the vertical motion driven wheel 252 is located in front of the bottom of the transverse variable pitch slide 21 and is rotatably connected to the bottom of the transverse variable pitch slide 21 around the front-back direction.

[0044] The vertical motion drive component 254 can be any suitable drive component. In a specific embodiment of this utility model, the vertical motion drive component 254 is a motor.

[0045] The left side of the vertical motion synchronization belt 253 is connected to the pipette mounting base 23, and can adopt any suitable structure. Please refer to [link / reference]. Figures 1-3As shown, in a specific embodiment of this utility model, the vertical motion drive device 25 further includes a vertical motion timing belt fixing plate 254. The vertical motion timing belt fixing plate 254 is vertically arranged and positioned along the front-to-back direction. It is located on the left side of the pipette mounting base 23 and connected to it. The left side of the vertical motion timing belt 253 is located between the vertical motion timing belt fixing plate 254 and the pipette mounting base 23, and abuts against both. Thus, the left side of the vertical motion timing belt 253 and the pipette mounting base 23 are fixed together by the vertical motion timing belt fixing plate 254.

[0046] The number of pipette mounting mechanisms 2 can be determined as needed. In a specific embodiment of this utility model, the number of pipette mounting mechanisms 2 is 8.

[0047] In use, the transverse pitch guide plate 11 can be fixed to the base of, for example, a fully automated experimental device for biomedical research. If multi-channel free pitch adjustment is required, since the transverse pitch guide plate 11 is fixed, each pipette mounting mechanism 2 can be driven to move left and right through its respective transverse pitch driving device 22, thereby adjusting the spacing between the pipette mounting mechanisms 2. If independent vertical movement is required, each pipette mounting mechanism 2 can be driven to move independently vertically through its respective vertical movement driving device 25. After the pipettes are mounted on the front side of the pipette mounting base 23 of this invention, the above operations can be used to achieve independent vertical movement and free spacing change of multiple pipettes, thereby completing the liquid handling process required for the experiment.

[0048] Therefore, this utility model provides a device that can realize multi-channel free pitch variation and independent vertical movement. It can achieve independent vertical movement of a single channel by driving the pipette mounting base to rise and fall through a vertical movement drive device and a vertical movement guide rail. It can also achieve independent lateral movement of a single channel by driving the lateral pitch variation slide left and right through a lateral pitch variation drive device and a lateral pitch variation guide rail. This allows for free adjustment of the distance between two adjacent channels, realizing multi-channel free pitch variation. It can be adapted to fully automated experimental equipment in biomedical research to complete liquid processing processes that require the use of multi-channel pipettes, and can greatly promote the application and promotion of fully automated experimental equipment in the biochemical and pharmaceutical fields.

[0049] In summary, the device of this invention, which enables free pitch variation and independent vertical movement of multiple channels, allows for free pitch variation between channels and independent vertical movement of each channel. This enables the multi-channel pipette installed on it to better meet experimental needs. It is ingeniously designed, has a simple structure, is easy to manufacture, and has low manufacturing cost, making it suitable for large-scale promotion and application.

[0050] Therefore, it is evident that the objective of this utility model has been fully and effectively achieved. The function and structural principles of this utility model have been demonstrated and explained in the embodiments. Without departing from the stated principles, any modifications can be made to the implementation methods. Therefore, this utility model includes all modified embodiments based on the spirit and scope of the claims.

Claims

1. A device capable of multi-channel free pitch variation and independent vertical movement, characterized in that, Includes a transverse guide rail mechanism and a pipette mounting mechanism, wherein: The transverse guide rail mechanism includes a transverse variable pitch guide rail base plate and a transverse variable pitch guide rail. Both the transverse variable pitch guide rail base plate and the transverse variable pitch guide rail are vertically arranged and both are arranged in the left-right direction. The transverse variable pitch guide rail is located in front of the transverse variable pitch guide rail base plate and is connected to the transverse variable pitch guide rail base plate. The pipette mounting mechanism includes a horizontal variable pitch slide, a horizontal variable pitch drive device, a pipette mounting base, a vertical motion guide rail, and a vertical motion drive device. The horizontal variable pitch slide is vertically arranged and extends along the front-to-back direction. The horizontal variable pitch slide is located in front of the horizontal variable pitch guide rail and is movably connected to the horizontal variable pitch guide rail. The horizontal variable pitch drive device is installed inside the horizontal variable pitch slide and connected to the bottom plate of the horizontal variable pitch guide rail to drive the bottom plate of the horizontal variable pitch guide rail to move left and right. The vertical motion guide rail is vertically arranged and extends along the left-to-right direction. The vertical motion guide rail is located in front of the horizontal variable pitch slide and is connected to the horizontal variable pitch slide. The pipette mounting base is located in front of the vertical motion guide rail and is movably connected to the vertical motion guide rail. The vertical motion drive device is installed on the horizontal variable pitch slide and connected to the pipette mounting base to drive the pipette mounting base to move vertically. The front side of the pipette mounting base is used to mount a pipette. The number of pipette mounting mechanisms is multiple, and the multiple pipette mounting mechanisms are arranged sequentially on the left and right sides.

2. The device as described in claim 1, capable of multi-channel free pitch variation and independent vertical movement, is characterized in that... The number of the transverse variable pitch guide rails is multiple, and the multiple transverse variable pitch guide rails are arranged vertically at intervals.

3. The device as described in claim 1, capable of multi-channel free pitch variation and independent vertical movement, is characterized in that... The lateral pitch-changing drive device includes a lateral pitch-changing synchronous belt pulley and a lateral pitch-changing drive component. The lateral guide rail mechanism also includes a lateral pitch-changing synchronous belt. The lateral pitch-changing synchronous belt is vertically arranged and arranged along the left-right direction. The lateral pitch-changing synchronous belt is located in front of the lateral pitch-changing guide rail base plate and above or below the lateral pitch-changing guide rail. The left and right ends of the lateral pitch-changing synchronous belt are respectively connected to the lateral pitch-changing guide rail base plate. The lateral pitch-changing synchronous belt pulley is horizontally arranged and rotatably arranged within the lateral pitch-changing slide. The lateral pitch-changing drive component is installed within the lateral pitch-changing slide and connected to the lateral pitch-changing synchronous belt pulley to drive the lateral pitch-changing synchronous belt pulley to rotate horizontally. The lateral pitch-changing synchronous belt is movably inserted through the lateral pitch-changing slide and is located behind the lateral pitch-changing synchronous belt pulley and engages with the lateral pitch-changing synchronous belt pulley.

4. The device as described in claim 3, capable of multi-channel free pitch variation and independent vertical movement, characterized in that, The lateral pitch control drive component is a motor.

5. The device as described in claim 3, capable of multi-channel free pitch variation and independent vertical movement, characterized in that, The transverse guide rail mechanism further includes a left base for the transverse pitch-changing synchronous belt, a left pressure plate for the transverse pitch-changing synchronous belt, a right base for the transverse pitch-changing synchronous belt, and a right pressure plate for the transverse pitch-changing synchronous belt. The left and right bases are both vertically positioned along the front-to-back direction and spaced apart from each other. Both the left and right bases are located in front of and connected to the transverse pitch-changing guide rail base plate. The left and right pressure plates are both vertically positioned along the left-to-right direction and spaced apart from each other. The left and right pressure plates are... The pressure plate and the right pressure plate of the lateral variable pitch synchronous belt are respectively located in front of the left base and the right base of the lateral variable pitch synchronous belt and are respectively connected to the left base and the right base of the lateral variable pitch synchronous belt. The left end of the lateral variable pitch synchronous belt is located between the left base and the left pressure plate and abuts against the left base and the left pressure plate, respectively. The right end of the lateral variable pitch synchronous belt is located between the right base and the right pressure plate and abuts against the right base and the right pressure plate, respectively.

6. The device as described in claim 1, capable of multi-channel free pitch variation and independent vertical movement, is characterized in that... The pipette mounting mechanism also includes a transverse pitch guide slider, which is located in front of the transverse pitch guide and is movably connected to the transverse pitch guide. The transverse pitch slide is located in front of the transverse pitch guide slider and is connected to the transverse pitch guide slider.

7. The device as described in claim 1, capable of multi-channel free pitch variation and independent vertical movement, characterized in that, The vertical motion drive device includes a vertical motion drive wheel, a vertical motion driven wheel, a vertical motion timing belt, and a vertical motion drive component. The vertical motion drive wheel and the vertical motion driven wheel are both vertically arranged and along the left-right direction, and are spaced apart vertically. The vertical motion driven wheel is located in front of the horizontal variable pitch slide and is rotatably connected to the horizontal variable pitch slide around the front-back direction. The vertical motion drive component is installed on the horizontal variable pitch slide and connected to the vertical motion drive wheel to drive the vertical motion drive wheel to rotate around the front-back direction. The vertical motion timing belt is vertically arranged and along the left-right direction. The upper and lower ends of the vertical motion timing belt are respectively sleeved on the vertical motion drive wheel and the vertical motion driven wheel. The left side of the vertical motion timing belt is connected to the pipette mounting base.

8. The device as described in claim 7, capable of multi-channel free pitch variation and independent vertical movement, characterized in that, The vertical motion drive component is a motor.

9. The device as described in claim 7, capable of multi-channel free pitch variation and independent vertical movement, characterized in that, The vertical motion drive device further includes a vertical motion timing belt fixing plate, which is vertically arranged and along the front-back direction. The vertical motion timing belt fixing plate is located on the left side of the pipette mounting base and connected to the pipette mounting base. The left side of the vertical motion timing belt is located between the vertical motion timing belt fixing plate and the pipette mounting base and abuts against the vertical motion timing belt fixing plate and the pipette mounting base respectively.

10. The device as described in claim 1, capable of multi-channel free pitch variation and independent vertical movement, characterized in that, The number of pipette mounting mechanisms is 8.

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