Batch cap screwing device for plasma freezing tubes

Abstract

The invention belongs to the technical field of medical instruments and equipment, and particularly relates to a plasma freezing tube batch cap screwing device which comprises a box body, a plurality of bottle cap containing grooves are formed in the upper end of the box body, a supporting plate is installed in the box body, and hydraulic telescopic rods are fixedly installed on the edges of the two sides of the lower end of the supporting plate; a plurality of rotary clamping assemblies used for clamping a pipe body are fixedly installed at the upper end of the supporting plate, the pipe body is placed in the rotary clamping assemblies, the rotary clamping assemblies correspond to the containing grooves in position, and the rotary clamping assemblies are located under the containing grooves. Bottle cap screwing assemblies used for screwing bottle caps are installed at the positions, located in the containing grooves, of the interior of the box body.

Description

Technical Field

[0001] The invention belongs to the technical field of medical equipment, and in particular relates to a batch capping device for plasma freezing tubes. Background Art

[0002] Plasma is the yellowish liquid portion of blood separated by centrifugation after anticoagulation. It is an important component of blood. It is mainly composed of water and contains a variety of key substances, such as plasma proteins, including albumin and globulin, which play an important role in maintaining blood colloidal osmotic pressure, transporting substances, and immune defense. Plasma cryovials are special containers specifically designed for storing plasma samples. They are usually made of low-temperature resistant, high-strength, and chemically stable materials, such as medical-grade plastics, and can withstand ultra-low temperature environments (such as -80°C or even lower). This ensures that plasma will not deteriorate due to problems with the container material during long-term frozen storage.

[0003] In drug clinical trials, plasma separated from blood samples needs to be frozen within a specified time, otherwise the drug stability will be affected and interfere with the subsequent blood drug concentration determination. When there are many subjects and plasma needs to be separated in batches, manual operation becomes the mainstream method. However, manual operation has obvious disadvantages. The plasma cryotubes can only be sealed by rotating the bottle caps one by one each time. Not only is it difficult to achieve batch capping, but a single operation is time-consuming, resulting in extremely low overall work efficiency. It is difficult to meet the requirements of large-scale clinical trials for plasma processing speed and quality. Therefore, a plasma cryotube batch capping device is proposed. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a plasma freezing tube batch capping device; to solve the problems of low efficiency, unstable quality, high labor intensity, etc. in the existing plasma freezing tube capping operation, and to achieve efficient and stable batch capping of plasma freezing tubes.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A plasma freezing tube batch capping device, comprising:

[0007] A box body, the upper end of the box body is provided with multiple bottle cap placement slots, a support plate is installed inside the box body, hydraulic telescopic rods are fixedly installed at the two side edges of the lower end of the support plate, and multiple rotary clamping components for clamping the tube body are fixedly installed on the upper end of the support plate, the tube body is placed in the rotary clamping component, the rotary clamping component corresponds to the position of the placement slot, and the rotary clamping component is located directly below the placement slot, and a bottle cap screwing component for screwing the bottle cap is installed at each placement slot inside the box body.

[0008] Furthermore, the rotary clamping assembly includes: a first motor, a first gear, a second gear, a third gear, a rotating block, a spring, a support shell, a movable oblique rod, a U-shaped fixed block and a clamp, the first motor is fixedly mounted on the lower end of the support plate, the output shaft of the first motor passes through the support plate and is located above the support plate, the first gear is fixedly mounted on the output shaft of the first motor, the second gear is meshed with the first gear, and the third gear is meshed with the second gear, the rotating block is fixedly mounted on the upper end of the first gear and the third gear, the spring is fixedly mounted inside the rotating block, the lower end of the spring is fixedly connected to the bottom of the rotating block, the support shell is slidably connected to the rotating block, and the lower end of the support shell is fixedly connected to the upper end of the spring, the U-shaped fixed block is fixedly mounted on both sides of the support shell, the movable oblique rod is rotatably connected to the side end of the rotating block, and the clamp is fixedly mounted on the end of the movable oblique rod away from the rotating block.

[0009] Furthermore, the first gear is located at the center of the support plate, the second gear and the third gear are arranged at intervals, and the second gear is located directly below the bottle cap placement slot.

[0010] Furthermore, a sliding groove is provided on the inner side wall of the rotating block, sliding rods are fixedly installed on both side sections of the supporting shell, the sliding rods are adapted to the sliding groove, and the tube body is placed in the supporting shell.

[0011] Furthermore, the bottle cap screwing assembly includes: a second motor, a first bidirectional threaded rod, a first limiting rod, a first movable block, a second bidirectional threaded rod, a second limiting rod, a first limiting plate, a rubber splint, a second movable block, a second limiting plate, a fourth gear, and a fifth gear. The second motor is fixedly installed inside the box body, one end of the first bidirectional threaded rod is fixedly connected to the output end of the second motor, the fifth gear is fixedly installed on the end of the first bidirectional threaded rod away from the second motor, the second bidirectional threaded rod and the first bidirectional threaded rod are arranged in parallel through two supporting blocks, one end of the second bidirectional threaded rod is fixedly installed with a fourth gear, the fourth gear is meshed with the fifth gear, the first limiting rod and the second limiting rod are arranged in parallel through two supporting blocks, and the The first bidirectional threaded rod and the first limit rod are located at the same height and are arranged in parallel, the second bidirectional threaded rod and the second limit rod are located at the same height and are arranged in parallel, there are two first movable blocks, the two first movable blocks are symmetrically installed between the first bidirectional threaded rod and the first limit rod, and the first movable block is threadedly connected to the first bidirectional threaded rod, the first movable block is slidably connected to the first limit rod, there are two second movable blocks, the two second movable blocks are symmetrically installed between the second bidirectional threaded rod and the second limit rod, and the second movable block is threadedly connected to the second bidirectional threaded rod, the second movable block is slidably connected to the second limit rod, the first limiting plate and the rubber splint are both fixedly installed on the side end of the first movable block, and the second limiting plate is fixedly installed on the side end of the second movable block.

[0012] Furthermore, the first bidirectional threaded rod and the second bidirectional threaded rod are both rotatably connected to the support block, and the first limiting rod and the second limiting rod are both fixedly connected to the support block.

[0013] Furthermore, the first limiting plate, the rubber clamping plate and the second limiting plate are all facing the bottle cap placement groove.

[0014] The nouns, conjunctions or adjectives involved in the above technical solution are explained as follows:

[0015] Fixed connection: refers to a connection in which parts or components are fixed without any relative movement. There are two types of connections: detachable and non-detachable.

[0016] (1) Removable connection: Components are fastened together using screws, splines, wedge pins, etc. This type of connection allows for disassembly during maintenance without damaging the components. However, the connectors used must be of the correct specifications (e.g., length of bolts, keys, wedge pins) and properly tightened.

[0017] (2) Non-detachable connections: These mainly refer to welding, riveting, and tenoning. Since parts must be forged, sawed, or oxygen-cut for disassembly during repair or replacement, they are generally not reusable. Furthermore, attention should be paid to workmanship quality, technical inspection, and remedial measures (such as calibration and polishing) during connection.

[0018] Beneficial effects of the present invention:

[0019] 1. This device is equipped with multiple rotary clamping components and bottle cap screwing components, which can simultaneously screw caps on multiple plasma freezing tubes, greatly improving the screwing efficiency. Compared with manual operation, it can complete the screwing of a large number of plasma freezing tubes in a short time, meeting the demand for batch processing of plasma freezing tubes in the medical field.

[0020] 2. The rotary clamping assembly can accurately clamp the plasma cryotube body to ensure the stability of the tube body during the capping process; the bottle cap screwing assembly uses precise mechanical transmission to achieve uniform and stable tightening of the bottle cap, avoiding the problem of inconsistent force and angle during manual operation, ensuring the capping quality of each plasma cryotube and improving the safety and reliability of sample storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 This is a schematic diagram of the overall structure of a batch capping device for plasma freezing tubes proposed by the present invention;

[0023] Figure 2 This is a schematic diagram of the overall front cross-sectional structure of the present invention;

[0024] Figure 3 This is a schematic structural diagram of the batch rotary clamping assembly in the present invention;

[0025] Figure 4 It is a partial structural diagram of the batch rotary clamping assembly in the present invention;

[0026] Figure 5 This is a schematic diagram of the top surface structure of the batch fixed bottle cap assembly in the present invention;

[0027] Figure 6 This is a rear structural schematic diagram of a batch fixed bottle cap assembly in the present invention;

[0028] Figure 7 This is a front structural diagram of a batch fixed bottle cap assembly in the present invention;

[0029] Figure 8 It is a schematic diagram of the side structure of the batch fixed bottle cap assembly in the present invention.

[0030] Figure numerals: 1. box body; 2. bottle cap placement slot; 3. tube body; 4. hydraulic telescopic rod; 5. support plate; 6. first motor; 7. first gear; 8. second gear; 9. third gear; 10. rotating block; 11. spring; 12. support shell; 13. sliding rod; 14. movable diagonal rod; 15. U-shaped fixing block; 16. clamp; 17. second motor; 18. first bidirectional threaded rod; 19. first limiting rod; 20. first movable block; 21. second bidirectional threaded rod; 22. second limiting rod; 23. first limiting plate; 24. rubber splint; 25. second movable block; 26. second limiting plate; 27. fourth gear; 28. fifth gear; 29. support block. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] A plasma freezing tube batch capping device, such as Figures 1 to 8 Shown, including:

[0033] A box body 1 is provided with a plurality of bottle cap placement slots 2 on the upper end of the box body 1, a support plate 5 is installed inside the box body 1, hydraulic telescopic rods 4 are fixedly installed on both side edges of the lower end of the support plate 5, and a plurality of rotary clamping assemblies for clamping the tube body 3 are fixedly installed on the upper end of the support plate 5, the tube body 3 is placed in the rotary clamping assembly, the rotary clamping assembly corresponds to the position of the placement slot, and the rotary clamping assembly is located directly below the placement slot, and a bottle cap screwing assembly for screwing the bottle cap is installed at each placement slot inside the box body 1.

[0034] As a preferred solution of the present invention, the rotary clamping assembly includes: a first motor 6, a first gear 7, a second gear 8, a third gear 9, a rotating block 10, a spring 11, a support shell 12, a movable inclined rod 14, a U-shaped fixed block 15 and a clamp 16. The first motor 6 is fixedly mounted on the lower end of the support plate 5, the output shaft of the first motor 6 passes through the support plate 5 and is located above the support plate 5, the first gear 7 is fixedly mounted on the output shaft of the first motor 6, the second gear 8 is meshed with the first gear 7, and the third gear 9 is meshed with the second gear 8. The rotating block 10 is fixedly mounted on the upper ends of the first gear 7 and the third gear 9, the spring 11 is fixedly mounted inside the rotating block 10, the lower end of the spring 11 is fixedly connected to the bottom of the rotating block 10, the supporting shell 12 is slidingly connected to the rotating block 10, and the lower end of the supporting shell 12 is fixedly connected to the upper end of the spring 11, the U-shaped fixing block 15 is fixedly mounted on both sides of the supporting shell 12, the movable oblique rod 14 is rotatably connected to the side end of the rotating block 10, and the clamp 16 is fixedly mounted on the end of the movable oblique rod 14 away from the rotating block 10.

[0035] A first motor 6 is fixedly mounted at the lower end of the support plate 5. When the first motor 6 is started, its output shaft passes through the support plate 5, driving the first gear 7 fixed to the output shaft to rotate. The first gear 7 serves as the power source, transmitting power through meshing with the second and third gears 8 and 9. The second gear 8 meshes with the first gear 7, and the third gear 9 meshes with the second gear 8. This multi-stage gear transmission achieves efficient power transmission and conversion, while also adjusting the speed and torque to provide appropriate power for subsequent actions. A rotating block 10 is fixedly mounted at the upper ends of the first and third gears 7 and 9. When the first and third gears 7 and 9 rotate, they drive the rotating block 10 to rotate synchronously. The rotating block 10 serves as a link between the upper and lower parts of the entire assembly, converting the power transmitted by the gears into its own rotational motion, providing the power base for the clamping action. The inner sidewalls of the rotating block 10 are provided with sliding grooves, and slide bars 13 that match the sliding grooves are fixedly mounted on both sides of the support shell 12. As the rotating block 10 rotates, the support shell 12 can slide within the rotating block 10 along the direction of the sliding grooves. At the same time, the lower end of the support shell 12 is connected to the upper end of the spring 11 fixed inside the rotating block 10, and the lower end of the spring 11 is fixed to the bottom of the rotating block 10. The spring 11 can provide a buffer and reset function for the support shell 12, ensuring the stability and flexibility of the support shell 12 during the sliding process. When the tube body 3 is not clamped, the support shell 12 can automatically reset under the action of the spring 11. The movable inclined rod 14 is rotatably connected to the side end of the rotating block 10, and the clamp 16 is fixedly mounted on the end of the movable inclined rod 14 away from the rotating block 10. When the rotating block 10 rotates, it will drive the movable inclined rod 14 to rotate around the connection point with the rotating block 10. During the rotation of the movable inclined rod 14, its end away from the rotating block 10 will push the clamp 16 to move inward, thereby clamping the plasma freezing tube body 3 placed in the support shell 12. Through this mechanical structure design, a series of actions from motor rotation to tube body 3 clamping are achieved, and the plasma freezing tube can be clamped stably and reliably, providing a stable tube body 3 fixing foundation for the subsequent capping process. When the tube body 3 needs to be released, the first motor 6 is rotated in the reverse direction, the movable inclined rod 14 is driven by the rotating block 10 to rotate in the reverse direction, the clamp 16 is released, and the tube body 3 can be taken out.

[0036] When the tube body 3 is inserted into the support shell 12 through the support plate 5, the hydraulic telescopic rod 4 is started to push the support plate 5 upward, so that the support plate 5 drives multiple tube bodies 3 to approach the bottle cap placement slot 2, so that the openings of multiple tube bodies 3 contact the openings of multiple bottle caps. At this time, the bottle cap is restricted by the rubber splint 24 and the first limit plate 23, and the tube body 3 slowly squeezes the fixed bottle cap. The tube body 3 subjected to resistance drives the support shell 12 to slowly press down, so that the support shell 12 squeezes the spring 11, and the downward moving support shell 12 drives the movable oblique rod 14 to contact the oblique block on the rotating block 10. The downward movement of the two movable oblique rods 14 squeezes the oblique block on the rotating block 10, so that the movable oblique rod 14 drives the two clamps 16 to move inward at the same time to clamp the tube body 3. The side of the clamp 16 close to the tube body 3 is fixed with rubber material, which increases The resistance of the tube body 3, at this time, the start of the first motor 6 drives the first gear 7 to rotate, and the rotation of the first gear 7 drives multiple rotating blocks 10 to rotate in one direction at the same time through the second gear 8 and the third gear 9, and the rotating rotating block 10 drives the support shell 12 to rotate through the slide rod 13, and the tube body 3 follows the rotation through the clamping of the clamp 16, so that the rotating tube body 3 is threadedly connected to the bottle cap, so that the multiple tube bodies 3 and the bottle cap are combined. When the tube body 3 is combined with the bottle cap, the rubber splint 24 and the first limit plate 23 that limit the bottle cap are retracted. At this time, the hydraulic telescopic rod 4 also contracts, so that the multiple tube bodies 3 and the combined bottle cap return to their original position, and the support shell 12 that is not squeezed rebounds through the spring 11, so that the clamp 16 is released from the clamping restriction on the tube body 3, so that the staff can take out the tube body 3 closed by the bottle cap.

[0037] As a preferred embodiment of the present invention, the first gear 7 is located at the center of the support plate 5, the second gear 8 and the third gear 9 are spaced apart, and the second gear 8 is located directly below the bottle cap placement slot 2. Placing the first gear 7 at the center of the support plate 5 can evenly transmit power to all sides with the center as the source point. The second gear 8 and the third gear 9 are spaced apart and reasonably mesh with the first gear 7. This layout makes the power transmission path clear and stable. When the first motor 6 drives the first gear 7 to rotate, it can smoothly transmit power to the second gear 8 and the third gear 9, avoiding problems such as power loss and transmission jamming caused by unreasonable gear layout, ensuring the continuous and stable operation of the rotary clamping assembly, and providing reliable power support for the clamping operation of the plasma freezing tube.

[0038] As a preferred embodiment of the present invention, the inner side wall of the rotating block 10 is provided with a slide groove, and the two side sections of the supporting shell 12 are fixedly installed with slide rods 13, which are adapted to the slide groove, and the tube body 3 is placed in the supporting shell 12. The structure in which the slide groove is adapted to the slide rod 13 provides precise guidance for the sliding of the supporting shell 12 in the rotating block 10. When the rotating block 10 rotates to drive the movable inclined rod 14 to push the clamp 16 to clamp the tube body 3, the supporting shell 12 can slide smoothly along the direction of the slide groove without shaking or offsetting. This allows the plasma freezing tube to maintain a stable position during clamping and the subsequent capping process, avoids situations such as the tube body 3 tilting or falling due to unstable movement of the supporting shell 12, and ensures the smooth progress of the capping operation.

[0039] As a preferred solution of the present invention, the bottle cap screwing assembly includes: a second motor 17, a first bidirectional threaded rod 18, a first limiting rod 19, a first movable block 20, a second bidirectional threaded rod 21, a second limiting rod 22, a first limiting plate 23, a rubber splint 24, a second movable block 25, a second limiting plate 26, a fourth gear 27, and a fifth gear. The second motor 17 is fixedly mounted inside the box body 1, one end of the first bidirectional threaded rod 18 is fixedly connected to the output end of the second motor 17, and the fifth gear 28 is fixedly mounted on the end of the first bidirectional threaded rod 18 away from the second motor 17. The second bidirectional threaded rod 21 and the first bidirectional threaded rod 18 are arranged in parallel through two support blocks 29. One end of the second bidirectional threaded rod 21 is fixedly mounted with a fourth gear 27, and the fourth gear 27 is meshed with the fifth gear 28. The first limiting rod 19 and the second limiting rod 22 are parallel through two support blocks 29 The first two-way threaded rod 18 and the first limit rod 19 are arranged in parallel, the second two-way threaded rod 21 and the second limit rod 22 are located at the same height and are arranged in parallel, there are two first movable blocks 20, and the two first movable blocks 20 are symmetrically installed between the first two-way threaded rod 18 and the first limit rod 19, and the first movable block 20 is threadedly connected to the first two-way threaded rod 18, the first movable block 20 is slidingly connected to the first limit rod 19, there are two second movable blocks 25, the two second movable blocks 25 are symmetrically installed between the second two-way threaded rod 21 and the second limit rod 22, and the second movable block 25 is threadedly connected to the second two-way threaded rod 21, the second movable block 25 is slidingly connected to the second limit rod 22, the first limiting plate 23 and the rubber splint 24 are both fixedly installed on the side end of the first movable block 20, and the second limiting plate 26 is fixedly installed on the side end of the second movable block 25.

[0040] The second motor 17 is fixedly mounted inside the housing 1 and serves as the power source for the entire bottle cap screwing assembly. After the second motor 17 is started, its output shaft drives the first bidirectional threaded rod 18, which is fixedly connected to one end, to rotate. A fifth gear 28 is fixedly mounted on the end of the first bidirectional threaded rod 18 away from the second motor 17. The fifth gear 28 is engaged with the fourth gear 27 at one end of the second bidirectional threaded rod 21 to transmit power to the second bidirectional threaded rod 21, thereby achieving power transmission between the two bidirectional threaded rods and ensuring that the two threaded rods can rotate synchronously and stably. The first bidirectional threaded rod 18 and the second bidirectional threaded rod 21 are arranged parallel to the first limiting rod 19 and the second limiting rod 22, and their positions correspond in height. The two first movable blocks 20 are symmetrically installed between the first bidirectional threaded rod 18 and the first limiting rod 19, wherein the first movable block 20 is threadedly connected to the first bidirectional threaded rod 18 and is slidably connected to the first limiting rod 19; similarly, the two second movable blocks 25 are symmetrically installed between the second bidirectional threaded rod 21 and the second limiting rod 22, are threadedly connected to the second bidirectional threaded rod 21, and are slidably connected to the second limiting rod 22. When the first bidirectional threaded rod 18 and the second bidirectional threaded rod 21 rotate, due to the principle of thread transmission, the first movable block 20 and the second movable block 25 will slide linearly on the corresponding limiting rods. The first limiting rod 19 and the second limiting rod 22 play a limiting and guiding role, ensuring that the movable blocks can only move smoothly along the set direction to avoid deviation or shaking. The first limiting plate 23 and the rubber splint 24 are fixedly installed on the side end of the first movable block 20, and the second limiting plate 26 is fixedly installed on the side end of the second movable block 25, and they are both facing the bottle cap placement groove 2.

[0041] By placing the bottle cap in the bottle cap placement groove 2 with the bottle cap opening facing downward and resting on the two second limit plates 26 extending out of the bottle cap placement groove 2, the start of the second motor 17 drives the first bidirectional threaded rod 18 to rotate counterclockwise. The rotation of the first bidirectional threaded rod 18 causes the two second movable blocks 25 to drive the second limit plates 26 to move outward at the same time. At this time, the rotation of the first bidirectional threaded rod 18 drives the fifth gear 28 to rotate. The rotation of the fifth gear 28 drives the second bidirectional threaded rod 21 to rotate through the fourth gear 27, causing the second bidirectional threaded rod 21 to rotate clockwise. The rotating second bidirectional threaded rod 21 pushes the two first movable blocks 20 to move inward at the same time. The inward movement of the first movable block 20 drives the first limiting plate 23 and the rubber splint 24 to move accordingly, so that the rubber splint 24 clamps and fixes the bottle cap, and the first limiting plate 23 fits and restricts the side away from the bottle cap opening. In the process of retracting the second limiting plate 26, the rubber splint 24 and the first limiting plate 23 restrict the bottle cap. Conversely, when the second limiting plate 26 returns to its original position, the rubber splint 24 and the first limiting plate 23 are retracted, and the bottle cap is placed repeatedly.

[0042] As a preferred embodiment of the present invention, the first bidirectional threaded rod 18 and the second bidirectional threaded rod 21 are both rotatably connected to the support block 29, and the first limiting rod 19 and the second limiting rod 22 are both fixedly connected to the support block 29. The first limiting rod 19 and the second limiting rod 22 are fixedly connected to the support block 29, and play a precise limiting and guiding role in the movement of the first movable block 20 and the second movable block 25. When the first bidirectional threaded rod 18 and the second bidirectional threaded rod 21 rotate, the first movable block 20 and the second movable block 25 can only slide in a straight line along the direction of the limiting rod, preventing them from offsetting or getting stuck during the movement, thereby ensuring that the first limiting plate 23, the rubber splint 24 and the second limiting plate 26 can accurately clamp and tighten the bottle cap, thereby improving the accuracy and consistency of the capping operation.

[0043] As a preferred embodiment of the present invention, the first limiting plate 23, rubber clamping plate 24, and second limiting plate 26 all face the bottle cap receiving slot 2. This allows these components to directly and quickly contact the bottle caps placed within the slot. During the capping operation, there is no need to adjust the angle or position of the components; the bottle caps can be clamped and tightened directly, simplifying the operation process and shortening the individual capping cycles, thereby improving the efficiency of the entire device.

[0044] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0045] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. A plasma freezing tube batch capping device, characterized in that: include: A box body (1) is provided with a plurality of bottle cap placement slots (2) at the upper end of the box body (1), a support plate (5) is installed inside the box body (1), hydraulic telescopic rods (4) are fixedly installed at both side edges of the lower end of the support plate (5), a plurality of rotary clamping assemblies for clamping the tube body (3) are fixedly installed at the upper end of the support plate (5), the tube body (3) is placed in the rotary clamping assembly, the rotary clamping assembly corresponds to the position of the placement slot, and the rotary clamping assembly is located directly below the placement slot, and a bottle cap screwing assembly for screwing the bottle cap is installed at each placement slot inside the box body (1).

2. A plasma freezing tube batch capping device according to claim 1, characterized in that: The rotary clamping assembly comprises: a first motor (6), a first gear (7), a second gear (8), a third gear (9), a rotating block (10), a spring (11), a support shell (12), a movable inclined rod (14), a U-shaped fixed block (15) and a clamp (16), wherein the first motor (6) is fixedly mounted on the lower end of the support plate (5), the output shaft of the first motor (6) passes through the support plate (5) and is located above the support plate (5), the first gear (7) is fixedly mounted on the output shaft of the first motor (6), the second gear (8) is meshedly connected to the first gear (7), and the third gear (9) is meshedly connected to the second gear (8). The rotating block (10) is fixedly mounted on the upper ends of the first gear (7) and the third gear (9), the spring (11) is fixedly mounted inside the rotating block (10), the lower end of the spring (11) is fixedly connected to the bottom of the rotating block (10), the supporting shell (12) is slidably connected to the rotating block (10), and the lower end of the supporting shell (12) is fixedly connected to the upper end of the spring (11), the U-shaped fixed block (15) is fixedly mounted on both sides of the supporting shell (12), the movable inclined rod (14) is rotatably connected to the side end of the rotating block (10), and the clamp (16) is fixedly mounted on one end of the movable inclined rod (14) away from the rotating block (10).

3. A plasma freezing tube batch capping device according to claim 2, characterized in that: The first gear (7) is located at the center of the support plate (5), the second gear (8) and the third gear (9) are arranged at intervals, and the second gear (8) is located directly below the bottle cap placement groove (2).

4. A plasma freezing tube batch capping device according to claim 2, characterized in that: The inner side wall of the rotating block (10) is provided with a sliding groove, and the two side sections of the supporting shell (12) are fixedly installed with sliding rods (13), the sliding rods (13) are adapted to the sliding groove, and the tube body (3) is placed in the supporting shell (12).

5. The plasma freezing tube batch capping device according to claim 1, characterized in that: The bottle cap screwing assembly comprises: a second motor (17), a first bidirectional threaded rod (18), a first limiting rod (19), a first movable block (20), a second bidirectional threaded rod (21), a second limiting rod (22), a first limiting plate (23), a rubber splint (24), a second movable block (25), a second limiting plate (26), a fourth gear (27), and a fifth gear. The second motor (17) is fixedly mounted inside the box (1), and one end of the first bidirectional threaded rod (18) is connected to the output end of the second motor (17). The fifth gear (28) is fixedly mounted on one end of the first bidirectional threaded rod (18) away from the second motor (17), the second bidirectional threaded rod (21) and the first bidirectional threaded rod (18) are arranged in parallel via two support blocks (29), a fourth gear (27) is fixedly mounted on one end of the second bidirectional threaded rod (21), the fourth gear (27) is meshedly connected with the fifth gear (28), and the first limiting rod (19) and the second limiting rod (22) are arranged in parallel via two support blocks (29). The first bidirectional threaded rod (18) and the first limiting rod (19) are located at the same height and are arranged in parallel, the second bidirectional threaded rod (21) and the second limiting rod (22) are located at the same height and are arranged in parallel, there are two first movable blocks (20), the two first movable blocks (20) are symmetrically installed between the first bidirectional threaded rod (18) and the first limiting rod (19), and the first movable block (20) is threadedly connected to the first bidirectional threaded rod (18), and the first movable block (20) and the first limiting rod (19) slide The second movable blocks (25) are connected in two pieces, and the two second movable blocks (25) are symmetrically installed between the second bidirectional threaded rod (21) and the second limiting rod (22), and the second movable block (25) is threadedly connected to the second bidirectional threaded rod (21), and the second movable block (25) is slidably connected to the second limiting rod (22). The first limiting plate (23) and the rubber clamping plate (24) are both fixedly installed on the side end of the first movable block (20), and the second limiting plate (26) is fixedly installed on the side end of the second movable block (25).

6. The plasma freezing tube batch capping device according to claim 5, characterized in that: The first bidirectional threaded rod (18) and the second bidirectional threaded rod (21) are both rotatably connected to the support block (29), and the first limiting rod (19) and the second limiting rod (22) are both fixedly connected to the support block (29).

7. The plasma freezing tube batch capping device according to claim 5, characterized in that: The first limiting plate (23), the rubber clamping plate (24) and the second limiting plate (26) are all oriented toward the bottle cap placement groove (2).

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