A vacuum blood collection tube centrifuge cap opening device for blood testing

By employing a gripper arm and a motor-driven moving clamp in the vacuum blood collection tube centrifuge cap-opening device, the problem of the gripper arm not being able to completely release the test tube cap was solved, ensuring that the cap can be reliably detached and collected, thus improving the accuracy and efficiency of the experiment.

CN224279717UActive Publication Date: 2026-05-26HANGZHOU MEICHUAN HEJIA BIOTECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU MEICHUAN HEJIA BIOTECHNOLOGY CO LTD
Filing Date
2025-05-28
Publication Date
2026-05-26

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    Figure CN224279717U_ABST
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Abstract

This utility model belongs to the field of cap-opening devices, specifically a centrifugal cap-opening device for blood testing vacuum blood collection tubes. A drive motor is fixedly connected to the bottom of the base plate, and a guide rail is slidably connected to the frame of the drive motor. A motor driver is provided on the front side of the drive motor, and a drive control board is fixedly connected to the frame of the motor driver. A storage rack is provided on the side of the motor driver, and a camera is fixedly connected to the upper part of the base plate. After the gripper arm is placed between the fixed clamping plate and the movable clamping plate, the drive motor drives the movable clamping plate to clamp the reagent tube. At this time, the gripper arm clamps the cap and then lifts it upward to complete the capping of the reagent tube. Then, the gripper arm moves to the inclined side of the cap-removing plate and moves towards the motor driver. If the cap of the gripper arm has not been detached, the cap clamped by the gripper arm will be blocked by the frame of the cap-removing plate. With the movement of the gripper arm, the cap is dislodged and falls into the storage rack for centralized collection.
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Description

Technical Field

[0001] This utility model relates to the field of cap-opening devices, specifically a centrifugal cap-opening device for vacuum blood collection tubes used in blood testing. Background Technology

[0002] Biological research involves various cell culture and molecular biology experiments, which require the processing and analysis of a large number of test tube samples. Test tube cap removal devices can help researchers perform experimental operations more conveniently, improve the accuracy and repeatability of experiments. The gripper cap removal device uses a gripper mechanism, which controls the opening, closing and movement of the gripper through a linear motor or other drive device. After the gripper clamps the test tube cap, it lifts it upward and rotates it at a certain angle to remove the cap.

[0003] However, sometimes the grippers do not fully release the cap after gripping the test tube, leaving the cap still in the gripper's gripping state. This prevents the grippers from continuing the cap removal process. Therefore, to address this issue, a vacuum blood collection tube centrifuge cap opening device for blood testing is proposed. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model proposes a centrifugal cap-opening device for vacuum blood collection tubes used in blood testing.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a vacuum blood collection tube centrifuge cap opening device for blood testing, including a base plate, a drive motor fixedly connected to the bottom of the base plate, a guide rail slidably connected to the frame of the drive motor, a motor driver provided on the front side of the drive motor, a drive control board fixedly connected to the frame of the motor driver, a storage rack provided on the side of the motor driver, a camera fixedly connected to the upper part of the base plate, a gripper arm provided on the upper part of the base plate, and a gripper arm provided at the end of the gripper arm;

[0006] Preferably, the base plate includes: a cap removal shell and a test tube clamp base. The cap removal shell is fixedly connected to the bottom of the base plate for connecting other accessories. The plate body of the base plate is fixedly connected to the bottom frame of the test tube clamp base. A camera is fixedly connected to the upper part of the test tube clamp base.

[0007] Preferably, the camera also includes a camera bracket, the bottom of the camera is fixedly connected to the plate of the camera bracket, and the plate of the camera bracket is fixedly connected to the housing of the detachable outer shell by bolts;

[0008] Preferably, the storage rack includes a cap-removing piece, and the frame of the storage rack is fixedly connected to the end of the cap-removing piece;

[0009] Preferably, the drive motor includes: a motor fixing plate, a movable clamping plate, and a fixed clamping plate. The housing of the drive motor is fixedly connected to the frame of the motor fixing plate. The bottom of the motor fixing plate is fixedly connected to the plate body of the base plate. The output end of the drive motor is threadedly connected to the threaded groove of the movable clamping plate. The bottom of the movable clamping plate is slidably connected to the frame of the guide rail. The extrusion part of the movable clamping plate is fixedly connected to a silicone pressure sheet. A fixed clamping plate is provided on the side of the movable clamping plate.

[0010] Preferably, the guide rail also includes a photoelectric switch, and the end of the guide rail is fixedly connected to the frame of the photoelectric switch.

[0011] The advantages of this utility model are:

[0012] After the gripper arm is placed between the fixed clamping plate and the movable clamping plate, the drive motor drives the movable clamping plate to clamp the reagent tube. At this time, the gripper arm clamps the cap and then lifts it upward to complete the cap removal of the reagent tube. Then, the gripper arm moves to the inclined side of the cap removal plate and moves in the direction of the motor driver. During this process, if the cap of the gripper arm does not detach, the cap clamped by the gripper arm will be blocked by the frame of the cap removal plate. With the movement of the gripper arm, the cap is dislodged and falls into the storage rack for centralized collection. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the external three-dimensional structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the present invention;

[0016] Figure 3 for Figure 2 A schematic diagram of the three-dimensional structure on the left side.

[0017] In the picture:

[0018] 1. Base plate; 11. Cap removal shell; 12. Test tube clamp base; 2. Camera; 21. Camera bracket; 3. Storage rack; 31. Cap removal plate; 4. Drive motor; 41. Motor fixing plate; 42. Moving clamp; 421. Silicone pressing sheet; 43. Fixed clamp; 5. Guide rail; 51. Photoelectric switch; 6. Motor driver; 7. Drive control board; 8. Gripper arm; 81. Gripper; 9. Reagent tube; 10. Track robotic arm. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0020] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0021] This application discloses a vacuum blood collection tube centrifuge cap opening device for blood testing, including a base plate 1. A drive motor 4 is fixedly connected to the bottom of the base plate 1. A guide rail 5 is slidably connected to the frame of the drive motor 4. A motor driver 6 is provided on the front side of the drive motor 4. A drive control board 7 is fixedly connected to the frame of the motor driver 6. A storage rack 3 is provided on the side of the motor driver 6. A camera 2 is fixedly connected to the upper part of the base plate 1. A gripper arm 8 is provided on the upper part of the base plate 1. A gripper 81 is provided at the end of the gripper arm 8.

[0022] The base plate 1 includes: a cap removal shell 11 and a test tube clamp base 12. The cap removal shell 11 is fixedly connected to the bottom of the base plate 1 for connecting other accessories. The plate body of the base plate 1 is fixedly connected to the bottom frame of the test tube clamp base 12. A camera 2 is fixedly connected to the upper part of the test tube clamp base 12.

[0023] The camera 2 also includes a camera bracket 21, the bottom of the camera 2 is fixedly connected to the plate of the camera bracket 21, and the plate of the camera bracket 21 is fixedly connected to the shell of the cap-removing outer shell 11 by bolts;

[0024] The storage rack 3 includes a cap removal piece 31, and the frame of the storage rack 3 is fixedly connected to the end of the cap removal piece 31;

[0025] The drive motor 4 includes: a motor fixing plate 41, a movable clamping plate 42, and a fixed clamping plate 43. The housing of the drive motor 4 is fixedly connected to the frame of the motor fixing plate 41. The bottom of the motor fixing plate 41 is fixedly connected to the plate of the base plate 1. The output end of the drive motor 4 is threadedly connected to the threaded groove of the movable clamping plate 42. The bottom of the movable clamping plate 42 is slidably connected to the frame of the guide rail 5. The extrusion part of the movable clamping plate 42 is fixedly connected to a silicone pressure sheet 421. The fixed clamping plate 43 is provided on the side of the movable clamping plate 42.

[0026] The guide rail component 5 also includes a photoelectric switch 51, and the end of the guide rail component 5 is fixedly connected to the frame of the photoelectric switch 51.

[0027] Working principle: During use, the gripper arm 8 is fixedly connected to the connecting part of the track robotic arm 10. The track robotic arm 10 drives the gripper arm 8 to move. Under the action of the gripper arm 8, the reagent tube 9 is lowered from the circular opening at the top of the cap removal shell 11. At this time, the camera 2 detects that the reagent tube 9 has been lowered. The drive control board 7 receives the signal from the camera 2 and controls the motor driver 6 to drive the drive motor 4. The lead screw at the end of the drive motor 4 drives the moving clamp 42 to move toward the position of the fixed clamp 43. During this process, the silicone pressure plate 421 cooperates with the fixed clamp 43 to hold the reagent tube placed in the middle. 9. Clamping: The movable clamping plate 42 slides under the limit of the guide rail 5. The photoelectric switch 51 can detect the position of the movable clamping plate 42. After the reagent tube 9 is clamped, the gripper arm 8 controls the gripper 81 to grab the cap on the reagent tube 9 and lift it upward, thereby completing the cap removal. At this time, the gripper arm 8 will move to the position of the cap removal plate 31. The middle part of the gripper 81 of the gripper arm 8 will move along the inclined side of the cap removal plate 31. If the cap of the gripper 81 of the gripper arm 8 does not come off, the cap removal plate 31 will abut against the cap. With the movement of the gripper arm 8, the cap will come off the gripper 81, and the cap will fall into the storage rack 3 for collection.

[0028] After the gripper arm 8 is placed between the fixed clamping plate 43 and the movable clamping plate 42, the drive motor 4 drives the movable clamping plate 42 to clamp the reagent tube 9. At this time, the gripper arm 8 clamps the cap and then lifts it upward to complete the capping of the reagent tube 9. Then, the gripper arm 8 moves to the inclined side of the cap removal plate 31 and moves in the direction of the motor driver 6. During this process, if the cap of the gripper arm 8 does not come off, the cap clamped by the gripper arm 8 will be blocked by the frame of the cap removal plate 31. With the movement of the gripper arm 8, the cap is dislodged and falls into the storage rack 3 for centralized collection.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A vacuum blood collection tube centrifuge cap opening device for blood testing, comprising a base plate (1), characterized in that: The bottom of the base plate (1) is fixedly connected to a drive motor (4), the frame of the drive motor (4) is slidably connected to a guide rail (5), a motor driver (6) is provided on the front side of the drive motor (4), a drive control board (7) is fixedly connected to the frame of the motor driver (6), a storage rack (3) is provided on the side of the motor driver (6), a camera (2) is fixedly connected to the upper part of the base plate (1), a gripper arm (8) is provided on the upper part of the base plate (1), and a gripper (81) is provided at the end of the gripper arm (8).

2. The vacuum blood collection tube centrifuge cap opening device for blood testing according to claim 1, characterized in that: The base plate (1) includes: a cap removal shell (11) and a test tube clamp base (12). The cap removal shell (11) is fixedly connected to the bottom of the base plate (1). The plate body of the base plate (1) is fixedly connected to the bottom frame of the test tube clamp base (12). A camera (2) is fixedly connected to the upper part of the test tube clamp base (12).

3. The vacuum blood collection tube centrifuge cap opening device for blood testing according to claim 2, characterized in that: The camera (2) also includes a camera bracket (21), the bottom of the camera (2) is fixedly connected to the plate of the camera bracket (21), and the plate of the camera bracket (21) is fixedly connected to the shell of the capless outer shell (11) by bolts.

4. The vacuum blood collection tube centrifuge cap opening device for blood testing according to claim 1, characterized in that: The storage rack (3) includes a cap removal piece (31), and the frame of the storage rack (3) is fixedly connected to the end of the cap removal piece (31).

5. A vacuum blood collection tube centrifuge cap opening device for blood testing according to claim 1, characterized in that: The drive motor (4) includes: a motor fixing plate (41), a movable clamping plate (42), and a fixed clamping plate (43). The housing of the drive motor (4) is fixedly connected to the frame of the motor fixing plate (41). The bottom of the motor fixing plate (41) is fixedly connected to the plate of the base plate (1). The output end of the drive motor (4) is threadedly connected to the threaded groove of the movable clamping plate (42). The bottom of the movable clamping plate (42) is slidably connected to the frame of the guide rail (5). The extrusion part of the movable clamping plate (42) is fixedly connected to a silicone pressure plate (421). A fixed clamping plate (43) is provided on the side of the movable clamping plate (42).

6. A vacuum blood collection tube centrifuge cap opening device for blood testing according to claim 5, characterized in that: The guide rail component (5) also includes a photoelectric switch (51), and the end of the guide rail component (5) is fixedly connected to the frame of the photoelectric switch (51).