A blood sample shaking device
By using a motor-driven half-gear and internal gear frame transmission system, combined with a sliding plate snap-fit structure, the problems of uneven mixing and unstable fixation in blood sample shaking devices are solved, achieving efficient mixing and safe fixation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL OF GUANGXI MEDICAL UNIVERSITY
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-21
AI Technical Summary
Existing blood sample shaking devices have poor mixing effects, especially for samples with high viscosity or complex composition, and the fixing structure is not stable, which can easily cause the sample container to be thrown out.
The sample holder uses a motor-driven half-gear and internal gear frame transmission system to achieve reciprocating swing. Combined with a sliding plate and snap-fit structure, it ensures a stable and secure lid, preventing the sample container from being thrown out.
It enables thorough mixing of blood samples with high viscosity or complex composition, reduces sample loss and the risk of contamination, and improves operational convenience and safety.
Smart Images
Figure CN224524583U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shaking device technology, and in particular to a blood sample shaking device. Background Technology
[0002] Hematology nursing is a specialized care for patients with hematological diseases, involving multiple aspects such as condition observation, treatment cooperation, complication prevention, and psychological support. It requires nursing staff to have solid professional knowledge and meticulous operational skills. Shaking blood samples is a key step in pre-clinical testing quality control. Its operation must be strictly standardized according to the sample type and testing requirements. For blood samples containing anticoagulants, they must be gently shaken in an inverted manner immediately after collection to ensure that the anticoagulant is fully mixed with the blood and to avoid blood coagulation affecting the test.
[0003] However, existing blood sample shaking devices have the following drawbacks: (1) Common devices use a single shaking method, which is mostly unidirectional continuous rotation, making it difficult to achieve sufficient mixing of samples. This is especially true for blood samples with high viscosity or complex composition, where the mixing effect is poor. (2) The fixed structure of common devices is not stable enough, which may cause the sample container to be thrown out during shaking, resulting in sample loss or contamination.
[0004] Therefore, this invention provides a blood sample shaking device. Utility Model Content
[0005] (a) Technical problems to be solved The problem solved by this utility model is to provide a blood sample shaking device with high practicality, which solves the problems mentioned in the background art, such as the difficulty in achieving sufficient mixing of samples by unidirectional continuous rotation and the possibility of sample containers being thrown out during shaking.
[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a blood sample shaking device, comprising a box body, wherein a first cavity is formed inside the box body, and a circular groove is formed at the center of the top of the box body. A motor is fixedly connected to the inner top wall of the first cavity, and a transmission rod is splinedly connected to the output end of the motor. A half gear is fixedly connected to one end of the transmission rod, and an internal gear frame meshes with the surface of the half gear. A gear meshes with the surface of the internal gear frame. The gear is rotatably connected to the inner top wall of the first cavity, and a rotating column is fixedly connected to the center of the gear. One end of the rotating column extends into the interior of the circular groove. A rectangular block is movably inserted into the top of the rotating column, and a sample holder is fixedly connected to the top of the rectangular block. A box cover is hinged to one side of the top of the box body. A locking block and a fixing block are fixedly connected to one side of the box cover and one side of the box body, respectively. A second cavity is opened inside the fixing block. A sliding plate is slidably connected to the inner wall of the second cavity. A spring and a damper are connected between one side of the sliding plate and the inner wall of the second cavity. A locking rod is fixedly connected to the other side of the sliding plate. One end of the locking rod is movably inserted into the surface of the locking block. A push rod is fixedly connected to the surface of the sliding plate. One end of the push rod extends to the outside of the fixing block.
[0007] Optionally, a crossbar is movably passed through the surface of the internal gear frame. One end of the crossbar is fixedly connected to the inner wall of the first cavity. The crossbar ensures that the internal gear frame can only reciprocate linearly along its axial direction, avoiding deviation or shaking of the internal gear frame during movement, thereby ensuring the stability and accuracy of the entire transmission system.
[0008] Optionally, the surface of the sliding plate is movably connected to a limiting rod, one end of which is fixedly connected to the inner wall of the second cavity. The limiting rod restricts the movement trajectory of the sliding plate, allowing it to slide only along the axial direction of the limiting rod. This effectively prevents the sliding plate from tilting or getting stuck during movement, ensuring that the locking rod can be accurately and smoothly inserted into or disengaged from the locking block.
[0009] Optionally, handles are fixedly connected to both sides of the box body. The two handles are symmetrically arranged, providing medical staff with a convenient gripping area, enabling them to easily lift and move the device, making it more convenient and labor-saving whether transferring it between wards or laboratories or adjusting its position.
[0010] Optionally, a push block is fixedly connected to one end of the push rod. The push block is rectangular in shape and allows the operator to apply force more easily and accurately. Especially when frequently operating the push rod to open and close the lid, it can effectively reduce hand fatigue, improve the convenience and comfort of operation, make the entire process of fixing and opening the device smoother, and optimize the user experience.
[0011] Optionally, the surface of the box is provided with heat dissipation holes, and a filter screen is fixedly connected to the inner wall of the heat dissipation holes. The filter screen fixed to the inner wall of the heat dissipation holes can prevent external dust and impurities from entering the device through the heat dissipation holes while dissipating heat.
[0012] (III) Beneficial Effects This invention provides a blood sample shaking device, which has the following beneficial effects: 1. This blood sample shaking device achieves the reciprocating oscillation of the rotating column through the coordinated action of components such as a motor, half gear, internal gear frame, and gears. This motion mode breaks the limitation of the unidirectional continuous rotation of common devices. The reciprocating oscillation can more accurately simulate the action of gentle inversion by humans, allowing the blood sample to oscillate intermittently in both directions on the sample holder. For blood samples with high viscosity or complex composition, it can significantly improve the mixing uniformity, ensure that the anticoagulant and blood are fully mixed, effectively solve the problem of poor mixing effect of traditional devices, and provide a reliable guarantee for quality control before clinical testing.
[0013] 2. This blood sample shaking device moves the sliding plate by pushing the push rod, compressing the spring and damper, and then releasing the push rod to allow the locking rod to insert into the locking block under the spring force. The entire fixing process is convenient and stable. The sliding plate slides along the limiting rod, ensuring the stability of the locking structure and firmly fixing the lid. This prevents the sample container from being thrown out during the shaking process, greatly reducing the risk of sample loss and contamination. Compared with the problem of unstable fixing structure in traditional devices, safety is significantly improved. Attached Figure Description
[0014] Fig. 1 This is a schematic diagram of the overall structure of this utility model; Fig. 2 This is a schematic diagram of the overall side view structure of this utility model; Fig. 3 This is a schematic diagram of the filter structure of this utility model; Fig. 4 This is a schematic diagram of the half-gear structure of this utility model.
[0015] In the diagram: 1. Box body; 3. Motor; 4. Half gear; 5. Internal gear frame; 6. Gear; 7. Rotating column; 8. Rectangular block; 9. Sample rack; 10. Fixing block; 11. Box lid; 12. Locking block; 13. Sliding plate; 14. Locking rod; 15. Spring; 16. Push rod; 17. Limiting rod; 18. Crossbar; 19. Filter screen; 20. Handle; 21. Fixing block. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0017] Please see Figs. 1 to 4 This utility model provides a technical solution: a blood sample shaking device, including a box body 1, with a first cavity inside the box body 1 and a circular groove at the center of the top of the box body 1. A motor 3, model Y160M1-2, is fixedly connected to the inner top wall of the first cavity. A transmission rod is splined to the output end of the motor 3, and a half gear 4 is fixedly connected to one end of the transmission rod. An internal gear frame 5 meshes with the surface of the half gear 4. Driven by the half gear 4, the internal gear frame 5 reciprocates linearly along a crossbar 18, converting the rotational motion of the half gear 4 into its own linear motion. Then, through meshing with a gear 6, the linear motion is converted into the alternating forward and reverse rotational motion of the gear 6, which plays the role of transmitting power and converting the motion form, ensuring that the power can be smoothly transmitted from the motor 3 to the gear 6. The gear 6 meshes with the surface of the internal gear frame 5, and the gear 6 is rotatably connected to the inner top wall of the first cavity. A rotating column 7 is fixedly connected to the center of the gear 6, with one end of the rotating column 7 extending into the interior of the circular groove. A rectangular block is movably inserted into the top of the rotating column 7. 8. A sample rack 9 is fixedly connected to the top of the rectangular block 8. The sample rack 9 is the component that directly places the blood sample container. It swings back and forth with the rectangular block 8 and the rotating column 7, thereby shaking the blood sample inside to fully mix the blood with the anticoagulant and prevent the blood from clotting. A box cover 11 is hinged to one side of the top of the box body 1. A locking block 12 and a fixing block 10 are fixedly connected to one side of the box cover 11 and the box body 1, respectively. A second cavity is opened inside the fixing block 10, and a sliding plate 13 is slidably connected to the inner wall of the second cavity. A spring 15 and a damper are connected together between one side of the sliding plate 13 and the inner wall of the second cavity. A locking rod 14 is fixedly connected to the other side of the sliding plate 13. During the shaking of the device, the tight engagement between the locking rod 14 and the locking block 12 can effectively prevent the lid 11 from opening accidentally and avoid the sample container from being thrown out. It is a key component to ensure the stability of the fixed structure. One end of the locking rod 14 is movably inserted into the surface of the locking block 12. A push rod 16 is fixedly connected to the surface of the sliding plate 13. One end of the push rod 16 extends to the outside of the fixed block 10. A crossbar 18 moves through the surface of the internal gear frame 5. One end of the crossbar 18 is fixedly connected to the inner wall of the first cavity. The crossbar 18 ensures that the internal gear frame 5 can only make reciprocating linear motion along its axial direction, avoiding the internal gear frame 5 from deviating or shaking during the movement, thereby ensuring the stability and accuracy of the entire transmission system. The surface of the sliding plate 13 moves through the limiting rod 17. One end of the limiting rod 17 is fixedly connected to the inner wall of the second cavity. The limiting rod 17 restricts the movement trajectory of the sliding plate 13, so that it can only slide along the axial direction of the limiting rod 17. This effectively avoids the sliding plate 13 from tilting or getting stuck during movement, and ensures that the locking rod 14 can be accurately and smoothly inserted into or disengaged from the locking block 12. Handles 20 are fixedly connected to both sides of the box body 1. The two handles 20 are symmetrically arranged. The handles 20 provide medical staff with a convenient gripping part, so that they can easily lift and move the device. Whether it is moving between wards and laboratories or adjusting the position, it is more convenient and labor-saving. One end of the push rod 16 is fixedly connected to a push block 21. The push block 21 is rectangular in shape. The push block 21 allows the operator to apply force more easily and accurately. Especially when frequently operating the push rod 16 to open and close the lid 11, it can effectively reduce hand fatigue, improve the convenience and comfort of operation, make the entire fixing and opening process smoother, and optimize the user experience. The surface of the box 1 is provided with heat dissipation holes, and a filter screen 19 is fixedly connected to the inner wall of the heat dissipation holes. The filter screen 19 fixed to the inner wall of the heat dissipation holes can prevent external dust and impurities from entering the device through the heat dissipation holes while dissipating heat.
[0018] In this invention, the working steps of the device are as follows: First step: When the device is started, the motor 3 starts to run as a power source. Its output end drives the half gear 4 to rotate through the transmission rod connected by the spline. Since the half gear 4 meshes with the internal gear frame 5, and the surface of the internal gear frame 5 is movably connected to the cross bar 18 fixed to the inner side wall of the first cavity, the rotation of the half gear 4 will drive the internal gear frame 5 to make reciprocating linear motion along the cross bar 18. At the same time, the internal gear frame 5 meshes with the gear 6. This reciprocating motion will drive the gear 6 to perform reciprocating rotation in both forward and reverse directions, thereby making the rotating column 7 at the center of the gear 6 realize reciprocating oscillation synchronously. The second step: First, push the push rod 16 to move it, so that it pushes the sliding plate 13 to move, while squeezing the spring 15 and the damper. Then, rotate the box cover 11 so that the locking block 12 contacts the fixing block 10. Then, release the push rod 16 so that the locking rod 14 is inserted into the locking block 12 under the elastic force of the spring 15. The sliding plate 13 slides stably along the limiting rod 17 to ensure the firmness of the locking structure and prevent the sample container from being thrown out when shaken.
[0019] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.
[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A blood sample shaking device, comprising a housing (1), characterized in that: The box (1) has a first cavity inside, and a circular groove is formed at the center of the top of the box (1). A motor (3) is fixedly connected to the inner top wall of the first cavity. A transmission rod is connected to the output end of the motor (3) via a spline. A half gear (4) is fixedly connected to one end of the transmission rod. An internal gear frame (5) meshes with the surface of the half gear (4). A gear (6) meshes with the surface of the internal gear frame (5). The gear (6) is rotatably connected to the inner top wall of the first cavity. A rotating column (7) is fixedly connected to the center of the gear (6). One end of the rotating column (7) extends into the interior of the circular groove. A rectangular block (8) is movably inserted into the top of the rotating column (7). A sample is fixedly connected to the top of the rectangular block (8). The frame (9) has a box cover (11) hinged to one side of the top of the box body (1). The box cover (11) and the box body (1) are respectively fixedly connected to a locking block (12) and a fixing block (10). The fixing block (10) has a second cavity inside. The inner wall of the second cavity is slidably connected to a sliding plate (13). A spring (15) and a damper are connected between one side of the sliding plate (13) and the inner wall of the second cavity. The other side of the sliding plate (13) is fixedly connected to a locking rod (14). One end of the locking rod (14) is movably inserted into the surface of the locking block (12). The surface of the sliding plate (13) is fixedly connected to a push rod (16). One end of the push rod (16) extends to the outside of the fixing block (10).
2. The blood sample shaking device according to claim 1, characterized in that: A crossbar (18) is movably passed through the surface of the inner toothed frame (5), and one end of the crossbar (18) is fixedly connected to the inner wall of the first cavity.
3. The blood sample shaking device according to claim 1, characterized in that: The surface of the sliding plate (13) moves through the limiting rod (17), one end of which is fixedly connected to the inner wall of the second cavity.
4. A blood sample shaking device according to claim 1, characterized in that: The box body (1) is fixedly connected to two handles (20) on both sides, and the two handles (20) are arranged symmetrically.
5. A blood sample shaking device according to claim 1, characterized in that: One end of the push rod (16) is fixedly connected to a push block (21), which is rectangular in shape.
6. A blood sample shaking device according to claim 1, characterized in that: The surface of the box (1) is provided with heat dissipation holes, and a filter screen (19) is fixedly connected to the inner side wall of the heat dissipation holes.