Handheld semi-automatic cryopreservation tube cap screwing mechanism

Abstract

The utility model discloses a handheld semi-automatic cryopreservation tube cap screwing mechanism which comprises a driving motor, a main gear mechanism connected with the driving motor, a driven gear mechanism connected with the main gear mechanism in a meshed mode, a coupler connected with the driven gear mechanism, a clutch connected with the coupler and a rotating head arranged below the clutch. A handle is arranged on one side of the driving motor, a forward cap screwing knob is arranged on the handle, a reverse cap screwing knob is connected with the driving motor and used for controlling the driving motor to work, and a cap pushing mechanism is further arranged on the handle. The utility model has the beneficial effects that torque is transmitted to each rotating head below through the gear mechanism, the scheme that the torque is transmitted by a belt in the prior art is replaced, the abrasion of the mechanism in the torque transmission process is reduced, the service life of the equipment is prolonged, and the cover pushing plate can be pushed to move downwards by pushing the handle; and the pipe cover of the spiral cover pipe adsorbed on the rotating head falls off.

Description

Technical Field

[0001] The utility model relates to the technical field of cryopreservation tube capping, in particular to a handheld semi-automatic cryopreservation tube capping mechanism. Background Art

[0002] The collection and separation of blood samples are key steps in drug clinical trials. Generally, according to the requirements of the test protocol, the plasma obtained from the separation of blood samples must be frozen within the specified time, otherwise it may affect the stability of the drug and affect the subsequent blood drug concentration determination. In actual drug clinical trials, plasma cryopreservation tubes are often used. In some clinical drug clinical trials with a large number of subjects, when batch plasma separation operations are required, manual operations are often used, which has low work efficiency and is prone to cross-contamination between samples;

[0003] After searching, the patent document with the announcement number CN214422215U discloses a batch screw-capping device for plasma cryopreservation tubes for phase I clinical trials of drugs, comprising a device mainboard, the upper surface of which is fixedly connected to the lower surface of a moving mechanism, a lifting mechanism is arranged inside the moving mechanism, a rotating mechanism is arranged on the right side of the lifting mechanism, and a rotating picking mechanism is arranged on the lower surface of the rotating mechanism;

[0004] The batch capping device for plasma cryopreservation tubes used in the Phase I clinical trial of the drug has the following shortcomings: when performing the capping operation, the cap body cannot be automatically separated from the cryopreservation tube during the capping process, and the capping effect cannot be ensured. In addition, the clamping plate fixes the cryopreservation tube by the pressure between the cryopreservation tubes by the rotating pickup mechanism. During the capping process, the cap body moves up and down relative to the cryopreservation tube. At this time, the pressure applied by the rotating pickup mechanism to the cryopreservation tube changes, which will lead to the problem that the clamping plate has a poor fixation effect on the cryopreservation tube.

[0005] In view of the above situation, it is necessary to improve the existing cryotube capping device so that it can adapt to the current needs of cryotube capping. Utility Model Content

[0006] The utility model aims to solve the above problems and designs a handheld semi-automatic cryopreservation tube capping mechanism.

[0007] To achieve the above-mentioned purpose, the technical solution of the utility model is a handheld semi-automatic cryogenic tube capping mechanism, comprising a driving motor, a main gear mechanism connected to the driving motor, a driven gear mechanism meshing with the gear mechanism, a coupling connected to the driven gear mechanism, a clutch connected to the coupling, and a rotating head arranged below the clutch. A handle is provided on one side of the driving motor, and a forward capping knob and a reverse capping button are provided on the handle, which are connected to the driving motor for controlling the operation of the driving motor. A cap pushing mechanism is also provided on the handle.

[0008] As a further supplement to the technical solution, an elastic mechanism is provided between the coupling and the clutch, one end of the elastic mechanism is fixedly connected to the coupling, and the other end of the elastic mechanism is fixedly connected to the clutch.

[0009] As a further supplement to the technical solution, a protective frame is provided on the outside of the main gear mechanism, the driven gear mechanism and the elastic mechanism.

[0010] To further supplement the technical solution, a mounting frame is provided on the outer side of the clutch, the upper end of the rotating head passes through the lower surface of the mounting frame and is connected to the clutch, and the lower end of the protective frame is arranged on the outer side of the mounting frame and is connected to the mounting frame by screws.

[0011] As a further supplement to the present technical solution, the elastic mechanism includes a spring seat arranged on the coupling, a connecting spring sleeved on the spring seat and connected thereto, the spring seat is fixedly mounted on the coupling, one end of the connecting spring is fixedly connected to the spring seat, and the other end of the connecting spring is fixedly connected to one end of the clutch.

[0012] To further supplement the technical solution, a handle trigger is also provided under the handle, and the handle trigger is connected to the protective frame through a fixing frame, the fixing frame is fixedly mounted on the protective frame, the handle trigger is rotatably mounted on the fixing frame, and the handle trigger is connected to the cover pushing mechanism.

[0013] To further supplement the present technical solution, the push cover mechanism includes a push cover plate arranged below the handle trigger and in contact with the handle trigger, a reset mechanism connected to the push cover plate, and a push plate connected to the push cover plate, wherein the push cover plate rests against the outer surface of the protective frame and is in sliding contact with the outer surface, the reset mechanism is connected to the protective frame, the push plate is arranged between the mounting frame and the push cover plate, and the push plate is provided with a mounting hole for the rotating head to pass through.

[0014] To further supplement the present technical solution, a runway-shaped hole is provided on the push cover plate, and the elastic mechanism includes a first mounting pin fixedly connected to the push cover plate, a return spring connected to the first mounting pin, and a second mounting pin connected to the return spring, and the second mounting pin passes through the runway-shaped hole and is fixedly connected to the protective frame.

[0015] The beneficial effect is that the utility model has a simple structure, and the push handle can push the cover push plate to move downward, so that the tube cover of the spiral cover tube adsorbed on the rotating head falls off;

[0016] The utility model transmits torque to each rotating head below through a gear mechanism, replacing the scheme of using a belt to transmit torque in the prior art, reducing the wear of the mechanism during the torque transmission process and increasing the service life of the equipment;

[0017] Under the action of the clutch, when the torque is too large, relative sliding can occur between the rotating head and the clutch, thereby protecting the cryopreservation tube cover from sliding due to the excessive torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model from a first angle;

[0019] Figure 2 This is a second angle overall structural diagram of the utility model;

[0020] Figure 3 It is a partial structural schematic diagram of the utility model;

[0021] In the figure, 1. driving motor; 2. main gear mechanism; 3. driven gear mechanism; 4. coupling; 5. clutch; 6. rotating head; 7. handle; 8. forward cover screwing knob; 9. reverse cover screwing button; 10. cover pushing mechanism; 101. cover pushing plate; 102. reset mechanism; 103. push plate; 11. elastic mechanism; 111. spring seat; 112. connecting spring; 12. protection frame; 13. mounting frame; 14. handle trigger; 15. first mounting pin; 16. reset spring; 17. second mounting pin; 18. fixing frame. DETAILED DESCRIPTION

[0022] In order to make the technical solution more clear to those skilled in the art, Figure 1-3 The technical solution of the utility model is described in detail:

[0023] A handheld semi-automatic cryogenic tube capping mechanism comprises a driving motor 1, a main gear mechanism 2 connected to the driving motor 1, a driven gear mechanism 3 meshing with the gear mechanism, a coupling 4 connected to the driven gear mechanism 3, a clutch 5 connected to the coupling 4, and a rotating head 6 arranged below the clutch 5. A handle 7 is provided on one side of the driving motor 1. A forward cover screwing knob 8 and a reverse cover screwing button 9 are provided on the handle 7 and are connected to the driving motor 1 for controlling the operation of the driving motor 1. A cover pushing mechanism 10 is also provided on the handle 7. The driving motor 1 can control the rotation of the main gear mechanism 2. The rotation of the main gear mechanism 2 can drive the driven gear mechanism 3 meshing with it to rotate, and then drive the clutch 5 and the rotating head 6 to rotate through the coupling 4, thereby completing the capping operation on the cryogenic tube. The handle 7 can control the movement of the cover pushing mechanism 10 so that the tube cover falls off when the cover pushing mechanism 10 works.

[0024] Among them, an elastic mechanism 11 is provided between the coupling 4 and the clutch 5, one end of the elastic mechanism 11 is fixedly connected to the coupling 4, and the other end of the elastic mechanism 11 is fixedly connected to the clutch 5. The elastic mechanism 11 includes a spring seat 111 arranged on the coupling 4, and a connecting spring 112 sleeved on the spring seat 111 and connected thereto. The spring seat 111 is fixedly installed on the coupling 4, one end of the connecting spring 112 is fixedly connected to the spring seat 111, and the other end of the connecting spring 112 is fixedly connected to one end of the clutch 5. When the drive motor 1 is started and the connecting spring 112 is compressed to a certain extent, the upper and lower parts of the clutch 5 are separated, thereby achieving the anti-locking condition of the cover being screwed on.

[0025] Among them, a protection frame 12 is provided outside the main gear mechanism 2, the driven gear mechanism 3, and the elastic mechanism 11;

[0026] A mounting frame 13 is provided on the outer side of the clutch 5 , the upper end of the rotating head 6 passes through the lower surface of the mounting frame 13 and is connected to the clutch 5 , and the lower end of the protection frame 12 is arranged on the outer side of the mounting frame 13 and is connected thereto by screws.

[0027] Furthermore, a handle trigger 14 is provided under the handle 7, and the handle trigger 14 is connected to the protective frame 12 through a fixing frame 18, and the fixing frame 18 is fixedly mounted on the protective frame 12. The handle 7 trigger is rotatably mounted on the fixing frame 18, and the handle trigger 14 is connected to the cover pushing mechanism 10. The handle 7 can control the handle trigger 14 to move downward, complete the up and down movement of the cover pushing mechanism 10, thereby realizing the falling off of the tube cover.

[0028] The structure of the cover pushing mechanism 10 will be described in detail below. The cover pushing mechanism 10 includes a cover pushing plate 101 disposed below the handle trigger 14 and in contact with the handle trigger 14, a reset mechanism 102 connected to the cover pushing plate 101, and a push plate 103 connected to the cover pushing plate 101. The cover pushing plate 101 is against the outer surface of the protection frame 12 and in sliding contact with it. The reset mechanism 102 is connected to the protection frame 12, and the push plate 103 is disposed between the mounting frame 13 and the cover pushing plate 101. The push plate 103 is provided with a mounting hole for the rotating head 6 to pass through, and the cover pushing plate 101 is provided with a runway-shaped hole. The elastic mechanism 1 1 comprises a first mounting pin 15 fixedly connected to the push cover plate 101, a return spring 16 connected to the first mounting pin 15, and a second mounting pin 17 connected to the return spring 16, wherein the second mounting pin 17 passes through the track-shaped hole and is fixedly connected to the protection frame 12. After the cover rotation action is completed, the handle 7 pushes the handle trigger 14 downward, the handle trigger 14 pushes the push cover plate 101 downward, and the push plate 103 moves with the movement of the push cover plate 101, thereby realizing the push cover function. After the action is completed, the return spring 16 returns to its original position due to the elastic force, and the push cover plate 101, the push plate 103 and the handle trigger 14 automatically return to their original positions.

[0029] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the utility model. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the utility model and fall within the protection scope of the utility model.

Claims

1. A handheld semi-automatic cryotube capping mechanism, characterized in that: The invention comprises a driving motor (1), a main gear mechanism (2) connected to the driving motor (1), a driven gear mechanism (3) meshingly connected to the gear mechanism, a coupling (4) connected to the driven gear mechanism (3), a clutch (5) connected to the coupling (4), and a rotating head (6) arranged below the clutch (5); a handle (7) is provided on one side of the driving motor (1); a forward cover screwing knob (8) and a reverse cover screwing button (9) are provided on the handle (7) and are connected to the driving motor (1) for controlling the operation of the driving motor (1); and a cover pushing mechanism (10) is also provided on the handle (7).

2. A handheld semi-automatic cryotube capping mechanism according to claim 1, characterized in that: An elastic mechanism (11) is provided between the coupling (4) and the clutch (5); one end of the elastic mechanism (11) is fixedly connected to the coupling (4), and the other end of the elastic mechanism (11) is fixedly connected to the clutch (5).

3. A handheld semi-automatic cryotube capping mechanism according to claim 2, characterized in that: A protection frame (12) is provided outside the main gear mechanism (2), the driven gear mechanism (3) and the elastic mechanism (11).

4. A handheld semi-automatic cryotube capping mechanism according to claim 3, characterized in that: A mounting frame (13) is provided on the outer side of the clutch (5); the upper end of the rotating head (6) passes through the lower surface of the mounting frame (13) and is connected to the clutch (5); and the lower end of the protection frame (12) is arranged on the outer side of the mounting frame (13) and is connected to the mounting frame (13) by screws.

5. A handheld semi-automatic cryotube capping mechanism according to claim 4, characterized in that: The elastic mechanism (11) comprises a spring seat (111) arranged on the coupling (4), and a connecting spring (112) sleeved on the spring seat (111) and connected thereto; the spring seat (111) is fixedly mounted on the coupling (4); one end of the connecting spring (112) is fixedly connected to the spring seat (111); and the other end of the connecting spring (112) is fixedly connected to one end of the clutch (5).

6. A handheld semi-automatic cryotube capping mechanism according to claim 5, characterized in that: A handle trigger (14) is also provided below the handle (7), and the handle trigger (14) is connected to the protection frame (12) via a fixing frame (18), the fixing frame (18) is fixedly mounted on the protection frame (12), the handle trigger (14) is rotatably mounted on the fixing frame (18), and the handle trigger (14) is connected to the cover pushing mechanism (10).

7. A handheld semi-automatic cryotube capping mechanism according to claim 6, characterized in that: The cover pushing mechanism (10) comprises a cover pushing plate (101) arranged below the handle trigger (14) and in contact with the handle trigger (14), a reset mechanism (102) connected to the cover pushing plate (101), and a push plate (103) connected to the cover pushing plate (101); the cover pushing plate (101) abuts against the outer surface of the protection frame (12) and is in sliding contact with the outer surface; the reset mechanism (102) is connected to the protection frame (12); the push plate (103) is arranged between the mounting frame (13) and the cover pushing plate (101); and a mounting hole is provided on the push plate (103) for the rotating head (6) to pass through.

8. A handheld semi-automatic cryotube capping mechanism according to claim 7, characterized in that: The push cover plate (101) is provided with a racetrack-shaped hole, and the elastic mechanism (11) comprises a first mounting pin (15) fixedly connected to the push cover plate (101), a return spring (16) connected to the first mounting pin (15), and a second mounting pin (17) connected to the return spring (16), and the second mounting pin (17) passes through the racetrack-shaped hole and is fixedly connected to the protection frame (12).

Images