A microdroplet device compaction device

CN224894193UActive Publication Date: 2026-10-27PUJIN MEDICAL TECHNOLOGY (HANGZHOU) CO LTD
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Patent Information

Application Number
CN202521466819.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-14
Publication Date
2026-10-27
Estimated Expiration
2035-07-14

AI Technical Summary

Technical Problem

[0005]本实用新型的目的在于提供一种微液滴设备压紧装置,通过电机、螺纹杆、移动架、气缸、固定块和安装组件的配合,解决了现有技术中的手动调节方式不仅操作繁琐、效率低下,同时,弹簧卡扣结构长期使用后易出现弹性疲劳,导致压紧效果衰减,影响设备稳定性的问题

Benefits of technology

[0015]1、本实用新型通过电机驱动螺纹杆的调节方式,取代手动操作,不仅大幅提高了调节效率,还能利用电机的精准控制,保证每次调节的一致性和准确性,同时,气缸配合安装组件,可根据样本载体的实际情况,灵活、精准地调节压紧力,确保压紧力均匀分布在样本载体上,有效减少因人为操作差异和压紧力不均导致的液滴处理偏差,显著提升微液滴设备的处理精度和可靠性。

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Abstract

The utility model discloses a kind of microdroplet equipment compression devices, it is related to microdroplet production technical field.The utility model includes bottom plate, the bottom plate top is fixedly connected with operation table, the inside of operation table is provided with adjusting mechanism, the operation table top is provided with compression plate, adjusting mechanism includes motor, threaded rod, moving frame, cylinder, fixed block and installation component, the motor is fixed in the inside both sides of operation table.The utility model is adjusted by the adjusting mode of motor drive threaded rod, replaces manual operation, not only greatly improves the adjusting efficiency, but also can utilize the accurate control of motor, guarantee the consistency and accuracy of each adjustment, simultaneously, cylinder cooperates installation component, can flexibly, accurately adjust compression force according to the actual situation of sample carrier, ensure that compression force is evenly distributed on sample carrier, effectively reduce the droplet processing deviation caused by artificial operation difference and uneven compression force, significantly improve the processing precision and reliability of microdroplet equipment.
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Description

Technical Field

[0001] This utility model belongs to the field of microdroplet production technology, and in particular relates to a microdroplet equipment pressing device. Background Technology

[0002] In fields such as biomedicine, chemical analysis, and materials synthesis, microdroplet technology has become an important research tool and technique due to its advantages such as low sample consumption, high reaction efficiency, and strong parallel processing capabilities. Microdroplet devices enable precise manipulation of trace amounts of liquid to achieve operations such as droplet generation, splitting, fusion, and detection, and their performance directly affects the accuracy and reliability of experimental results.

[0003] In existing technologies, the clamping structures of microdroplet devices mostly adopt manual knobs, spring clips, or single cylinder drives. Manual adjustment is not only cumbersome and inefficient, but also makes it difficult to ensure the uniformity and consistency of clamping force. It is easy to cause droplet processing deviations due to differences in human operation. Spring clip structures are prone to elastic fatigue after long-term use, resulting in a decrease in clamping effect and affecting the stability of the device. Single cylinder driven clamping devices lack flexible position adjustment functions and are difficult to adapt to sample carriers of different specifications or complex processing conditions.

[0004] To address these issues, we provide a microdroplet device clamping apparatus. Utility Model Content

[0005] The purpose of this utility model is to provide a micro-droplet device clamping device. Through the cooperation of a motor, threaded rod, moving frame, cylinder, fixing block and installation components, it solves the problems of the existing manual adjustment method being not only cumbersome and inefficient, but also prone to elastic fatigue after long-term use of the spring buckle structure, resulting in a decrease in clamping effect and affecting the stability of the device.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a pressing device for a microdroplet device, comprising a base plate, an operating platform fixedly connected to the top of the base plate, an adjustment mechanism inside the operating platform, and a pressing plate on the top of the operating platform. The adjustment mechanism includes a motor, a threaded rod, a movable frame, a cylinder, a fixing block, and an installation assembly. The motor is fixed to both sides inside the operating platform, the threaded rod is fixed to both sides of the motor, and the other end of the threaded rod is movable inside the operating platform via a bearing. The movable frame is threaded onto the surface of the threaded rod, and the top of the movable frame extends to the outside of the operating platform. The cylinder is fixed inside the movable frame, and the top of the cylinder extends to the outside of the movable frame. The fixing block is fixed to the top of the cylinder, and the installation assembly is disposed inside the fixing block. The base plate serves as a basic support structure, providing stability for the entire device. The placement platform has a fixed operating table on top for supporting and installing various functional components. The adjustment mechanism on the operating table is the key part for achieving precise clamping. The motor is firmly installed on both sides inside the operating table, and the output shaft of the motor is fixedly connected to the threaded rod. The other end of the threaded rod is movably connected to the inside of the operating table through a high-precision bearing. The moving frame is threadedly fitted onto the surface of the threaded rod. The moving frame can move smoothly in a straight line along the axial direction of the threaded rod, and the top of the moving frame extends to the outside of the operating table. The cylinder is firmly fixed inside the moving frame, and the top of its piston rod extends to the outside of the moving frame. The fixing block is installed on the top of the cylinder, and the mounting components are cleverly set inside the fixing block, cooperating with the clamping plate to achieve precise clamping of the sample carrier.

[0008] This utility model is further configured such that the installation assembly includes a connecting block, a snap-fit ​​plate, a return spring, a snap-fit ​​block, and an elastic spring. The connecting block is movable on the inner wall of the top of the fixed block, and one side of the connecting block is fixedly connected to one side of the pressure plate. The snap-fit ​​plate is movable inside the connecting block, and the other side of the snap-fit ​​plate passes through one side of the connecting block and extends to the outside of the fixed block. The return spring is fixed inside the fixed block, and the other side of the return spring extends to the outside of the fixed block. The other side of the return spring is fixedly connected to the bottom of one side of the snap-fit ​​plate. The snap-fit ​​block is movable on the inner wall of the top of the snap-fit ​​plate. The elastic spring is fixed to the inner wall of the snap-fit ​​block, and the bottom of the elastic spring extends to the outside of the snap-fit ​​block and is fixedly connected to the inner wall of the top of the snap-fit ​​plate. The installation assembly composed of the connecting block, snap-fit ​​plate, return spring, snap-fit ​​block, and elastic spring can realize flexible connection and buffer adjustment between the pressure plate and the fixed block. When pressing different sample carriers, it can adaptively adjust to ensure the pressing effect and reduce equipment wear.

[0009] The present invention is further configured such that support plates are fixedly connected to both sides of the bottom of the base plate, and the bottom of the support plates is provided with anti-slip texture. The support plates fixed to both sides of the bottom of the base plate increase the contact area between the device and the placement surface. Combined with the anti-slip texture, the stability of the device during operation is effectively improved, and accidental slippage is prevented.

[0010] The present invention is further configured such that a lamp arm is fixedly connected to one side of the top of the operating table, and a lighting lamp is fixedly connected to the inner wall of the bottom of the other side of the lamp arm. The lamp arm on one side of the top of the operating table and the lighting lamp at the bottom provide sufficient lighting for the microdroplet operation area, making it convenient for operators to clearly observe the microdroplet processing process and improve the accuracy of operation.

[0011] The present invention is further configured such that the operating table has four movable slots inside, and the surface of the movable frame is movably connected to the inner wall of the movable slot. The four movable slots on the operating table are movably connected to the surface of the movable frame, which plays a precise guiding role in the movement of the movable frame and ensures the stability and accuracy of the adjustment mechanism.

[0012] The present invention is further provided that an anti-slip pad is fixedly connected to the inner wall of the top of the operating table. The anti-slip pad is made of rubber. When the sample carrier is pressed, the rubber anti-slip pad on the inner wall of the top of the operating table can increase the friction and prevent the sample carrier from sliding. At the same time, it plays a buffering and protective role to avoid damage to the sample carrier.

[0013] The present invention is further configured such that an auxiliary block is fixedly connected to the inner wall of the top of the snap-fit ​​plate, and the surface of the auxiliary block is movably connected to the inner side of the elastic spring. The auxiliary block on the inner wall of the top of the snap-fit ​​plate is movably connected to the inner side of the elastic spring, which can enhance the stability of the elastic spring during operation and ensure the reliable functioning of the installation component.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model replaces manual operation with an adjustment method using a motor-driven threaded rod, which not only significantly improves adjustment efficiency but also ensures consistency and accuracy of each adjustment through the precise control of the motor. At the same time, the cylinder, in conjunction with the mounting components, can flexibly and precisely adjust the clamping force according to the actual situation of the sample carrier, ensuring that the clamping force is evenly distributed on the sample carrier. This effectively reduces droplet processing deviations caused by differences in human operation and uneven clamping force, and significantly improves the processing accuracy and reliability of the microdroplet device.

[0016] 2. Through the ingenious design of the motor, threaded rod and other components in the adjustment mechanism, this utility model not only ensures the stability of the clamping effect, but also reduces wear and tear on the equipment during long-term use, extends the service life of the equipment, reduces maintenance costs, and improves the overall stability and reliability of the equipment, providing a strong guarantee for the long-term stable operation of the microdroplet device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a perspective view of a microdroplet device clamping device.

[0019] Figure 2 This is a side view of a microdroplet device clamping device.

[0020] Figure 3 This is a cross-sectional view of the operating table in a microdroplet device pressing device.

[0021] Figure 4 This is a cross-sectional view of a fixing block in a microdroplet device clamping device.

[0022] Figure 5 This is a top view of the lamp arm in a microdroplet device clamping device.

[0023] In the attached diagram: 1. Base plate; 2. Operating platform; 31. Motor; 32. Threaded rod; 33. Moving frame; 34. Cylinder; 35. Fixing block; 36. Mounting assembly; 4. Pressing plate; 361. Connecting block; 362. Clip plate; 363. Return spring; 364. Clip block; 365. Elastic spring; 5. Support plate; 6. Lamp arm; 7. Lighting lamp; 8. Moving groove; 9. Anti-slip pad; 10. Auxiliary block. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1 Please see Figure 1-5 This utility model relates to a microdroplet device clamping device, comprising a base plate 1, an operating platform 2 fixedly connected to the top of the base plate 1, an adjustment mechanism inside the operating platform 2, and a clamping plate 4 on the top of the operating platform 2. The adjustment mechanism includes a motor 31, a threaded rod 32, a moving frame 33, a cylinder 34, a fixing block 35, and an installation component 36. The motor 31 is fixed to both sides inside the operating platform 2, the threaded rod 32 is fixed to both sides of the motor 31, and the other end of the threaded rod 32 is movable inside the operating platform 2 through a bearing. The moving frame 33 is threaded onto the surface of the threaded rod 32, and the top of the moving frame 33 extends to the outside of the operating platform 2. The cylinder 34 is fixed inside the moving frame 33, and the top of the cylinder 34 extends to the outside of the moving frame 33. The fixing block 35 is fixed to the top of the cylinder 34, and the installation component 36 is disposed inside the fixing block 35.

[0026] Specifically: The base plate 1 serves as the basic support structure, providing a stable platform for the entire device. The operating table 2, fixedly connected to its top, is used to support and install various functional components. The adjustment mechanism on the operating table 2 is the key part for achieving precise clamping. The motor 31 is securely installed on both sides inside the operating table 2. The output shaft of the motor 31 is fixedly connected to the threaded rod 32. The other end of the threaded rod 32 is movably connected to the inside of the operating table 2 through a high-precision bearing. The moving frame 33 is threadedly fitted onto the surface of the threaded rod 32. The moving frame 33 can move smoothly in a straight line along the axial direction of the threaded rod 32, and the top of the moving frame 33 extends to the outside of the operating table 2. The cylinder 34 is firmly fixed inside the moving frame 33, and the top of its piston rod extends to the outside of the moving frame 33. The fixing block 35 is installed on the top of the cylinder 34. The mounting component 36 is cleverly set inside the fixing block 35, cooperating with the clamping plate 4 to achieve precise clamping of the sample carrier.

[0027] Example 2 Please see Figure 1-5 Based on Embodiment 1, the mounting assembly 36 includes a connecting block 361, a snap-fit ​​plate 362, a return spring 363, a snap-fit ​​block 364, and an elastic spring 365. The connecting block 361 is movable within the top inner wall of the fixing block 35, and one side of the connecting block 361 is fixedly connected to one side of the clamping plate 4. The snap-fit ​​plate 362 is movable inside the connecting block 361, and the other side of the snap-fit ​​plate 362 penetrates one side of the connecting block 361 and extends to the outside of the fixing block 35. The return spring 363 is fixed inside the fixing block 35, and the other side of the return spring 363 extends to the outside of the fixing block 35. The other side of the return spring 363 is fixedly connected to the bottom of one side of the snap-fit ​​plate 362. The snap-fit ​​block 364 is movable within the top inner wall of the snap-fit ​​plate 362. The elastic spring 365... 5 is fixed to the inner wall of the locking block 364. The bottom of the elastic spring 365 extends to the outside of the locking block 364 and is fixedly connected to the top inner wall of the locking plate 362. Support plates 5 are fixedly connected to both sides of the bottom of the base plate 1. The bottom of the support plates 5 is provided with anti-slip texture. A lamp arm 6 is fixedly connected to one side of the top of the operating table 2. A lighting lamp 7 is fixedly connected to the bottom inner wall of the other side of the lamp arm 6. The operating table 2 has four movable slots 8 inside. The surface of the movable frame 33 is movably connected to the inner wall of the movable slot 8. An anti-slip pad 9 is fixedly connected to the top inner wall of the operating table 2. The anti-slip pad 9 is made of rubber. An auxiliary block 10 is fixedly connected to the top inner wall of the locking plate 362. The surface of the auxiliary block 10 is movably connected to the inner side of the elastic spring 365.

[0028] Specifically, the mounting assembly 36, composed of components such as connecting block 361, snap-fit ​​plate 362, return spring 363, snap-fit ​​block 364, and elastic spring 365, enables flexible connection and buffer adjustment between the clamping plate 4 and the fixing block 35. It can adaptively adjust when clamping different sample carriers, ensuring clamping effect and reducing equipment wear. The support plates 5 fixed on both sides of the bottom of the base plate 1 increase the contact area between the device and the placement surface, and, combined with anti-slip texture, effectively improve the stability of the device during operation and prevent accidental slippage. The lamp arm 6 on one side of the top of the operating table 2 and the lighting lamp 7 at the bottom provide sufficient illumination for the microdroplet operation area, facilitating operation. The operator can clearly observe the microdroplet processing process, improving operational accuracy. The four movable slots 8 on the operating table 2 are movably connected to the surface of the movable frame 33, providing precise guidance for the movement of the movable frame 33 and ensuring the stability and accuracy of the adjustment mechanism. The rubber anti-slip pad 9 on the inner wall of the top of the operating table 2 increases friction when pressing the sample carrier, preventing the sample carrier from sliding and also providing buffer protection to avoid damage to the sample carrier. The auxiliary block 10 on the inner wall of the top of the snap-fit ​​plate 362 is movably connected to the inner side of the elastic spring 365, which can enhance the stability of the elastic spring 365 during operation and ensure the reliable functioning of the installation component 36.

[0029] The working principle of this utility model is as follows: When in use, the motor 31 is started, and the motor 31 drives the threaded rod 32 to rotate, causing the moving frame 33 to move axially along the threaded rod 32, thereby adjusting the lateral position of the pressing device to adapt to sample carriers in different positions. After the lateral position is determined, the cylinder 34 works, the piston rod extends or retracts, driving the fixed block 35 and the pressing plate 4 connected thereto to move up and down, realizing the pressing or releasing operation of the sample carrier. The components in the mounting assembly 36 work together to provide buffering and adaptive adjustment functions during the pressing process. For example, when pressing sample carriers of different thicknesses or materials, the connecting block 361 can move appropriately within the fixed block 35. The snap plate 362, the return spring 363, the snap block 364 and the elastic spring 365 work together to keep the pressing force appropriate and uniform, avoiding damage to the sample carrier due to excessive pressure or poor processing effect due to insufficient pressure.

[0030] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A microdroplet device clamping device, comprising a base plate (1), characterized in that: The bottom plate (1) is fixedly connected to the top of the operating table (2), the operating table (2) is provided with an adjustment mechanism, and the top of the operating table (2) is provided with a pressing plate (4). The adjustment mechanism includes a motor (31), a threaded rod (32), a movable frame (33), a cylinder (34), a fixed block (35), and an installation component (36). The motor (31) is fixed inside both sides of the operating table (2). The threaded rod (32) is fixed to both sides of the motor (31). The other end of the threaded rod (32) is movable inside the operating table (2) through a bearing. The movable frame (33) is threaded onto the surface of the threaded rod (32). The top of the movable frame (33) extends to the outside of the operating table (2). The cylinder (34) is fixed inside the movable frame (33). The top of the cylinder (34) extends to the outside of the movable frame (33). The fixed block (35) is fixed to the top of the cylinder (34). The installation component (36) is located inside the fixed block (35).

2. The microdroplet device pressing device according to claim 1, characterized in that: The mounting assembly (36) includes a connecting block (361), a snap-fit ​​plate (362), a return spring (363), a snap-fit ​​block (364), and an elastic spring (365). The connecting block (361) is movable on the inner wall of the top of the fixing block (35). One side of the connecting block (361) is fixedly connected to one side of the clamping plate (4). The snap-fit ​​plate (362) is movable inside the connecting block (361). The other side of the snap-fit ​​plate (362) penetrates one side of the connecting block (361) and extends to the outside of the fixing block (35). The reset spring (363) is fixed inside the fixing block (35), and the other side of the reset spring (363) extends to the outside of the fixing block (35). The other side of the reset spring (363) is fixedly connected to the bottom of one side of the snap-fit ​​plate (362). The snap-fit ​​block (364) is movable on the top inner wall of the snap-fit ​​plate (362). The elastic spring (365) is fixed to the inner wall of the snap-fit ​​block (364). The bottom of the elastic spring (365) extends to the outside of the snap-fit ​​block (364) and is fixedly connected to the top inner wall of the snap-fit ​​plate (362).

3. The microdroplet device clamping device according to claim 1, characterized in that: The bottom of the base plate (1) is fixedly connected to the support plate (5) on both sides, and the bottom of the support plate (5) is provided with anti-slip texture.

4. The microdroplet device clamping device according to claim 1, characterized in that: A lamp arm (6) is fixedly connected to one side of the top of the operating table (2), and a lighting lamp (7) is fixedly connected to the inner wall of the bottom of the other side of the lamp arm (6).

5. The microdroplet device clamping device according to claim 1, characterized in that: The operating table (2) has four movable slots (8) inside. The surface of the movable frame (33) is movably connected to the inner wall of the movable slot (8).

6. The microdroplet device clamping device according to claim 1, characterized in that: The top inner wall of the operating table (2) is fixedly connected with an anti-slip pad (9), which is made of rubber.

7. The microdroplet device clamping device according to claim 2, characterized in that: An auxiliary block (10) is fixedly connected to the inner wall of the top of the snap-fit ​​plate (362), and the surface of the auxiliary block (10) is movably connected to the inner side of the elastic spring (365).