Blood bag shaking and weighing mechanism of blood component preparation separator
By designing the shaking and weighing mechanism of the blood component preparation separator, the tray rotates around the support shaft axis to achieve uniform shake of the blood component, and ensuring the accuracy of weighing data through position detection sensors, solving the problem of inaccurate weighing in the prior art.
Patent Information
- Application Number
- CN202421657532.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-12
AI Technical Summary
In the prior art, during the swaying process of the blood component separator, the moving of the tray center of gravity causes fluctuations in the measurement results of the weighing sensor, making it difficult to accurately weigh.
A well-shaking and weighing mechanism for a blood component preparation separator is designed. The pallet rotates around the support shaft axis and uses the driving component to drive the pallet to rotate back and forth, so that the pallet shakes the blood bag to shake, thereby achieving even shake of the blood component. At the same time, the position detection sensor is triggered when the pallet rotates into the same vertical plane as the center of gravity and the support shaft axis, and the measurement data of the weighing sensor is recorded.
During the shake process, weighing data is recorded only when the tray rotates into the same vertical plane as the support shaft axis during the same shake, which improves the accuracy of weighing and avoids fluctuations in the measurement result caused by the movement of the center of gravity.
Smart Images
Figure CN222816737U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical equipment, in particular to a blood bag shaking and weighing mechanism for a blood component preparation and separation machine. Background Art
[0002] The blood components separated by the blood component separator need to be input into the corresponding preservation fluid blood bags and mixed evenly with the preservation fluid. During the input process, the preservation fluid blood bags are shaken to make the blood components and the preservation fluid mixed evenly. At the same time, the preservation fluid blood bags need to be weighed to ensure that the amount of blood components input into each blood bag meets the requirements.
[0003] Currently, there are weighing devices that have both weighing and shaking functions. By connecting the shaking mechanism as a whole to the weighing sensor, the shaking and weighing functions of the blood bag are realized. However, due to the swinging of the swing mechanism, the center of gravity of the tray containing the blood bag will move, which will cause the measurement result of the weighing sensor to fluctuate, making it difficult to weigh accurately. Utility Model Content
[0004] Based on the above description, the utility model provides a blood bag shaking and weighing mechanism for a blood component preparation and separation machine to solve the problem in the related technology that the center of gravity of the tray containing the blood bags will move during the swinging process of the swinging mechanism, causing the measurement results of the weighing sensor to fluctuate and making it difficult to accurately weigh.
[0005] The technical solution of the utility model to solve the above technical problems is as follows:
[0006] The present application provides a blood bag shaking and weighing mechanism for a blood component preparation and separation machine, and the technical solution adopted is as follows:
[0007] A blood bag shaking and weighing mechanism for a blood component preparation and separation machine, comprising:
[0008] Base;
[0009] A weighing sensor connected to the base;
[0010] A shaking mechanism, which is connected to the weighing sensor, comprises a tray, a support shaft and a driving assembly, wherein the axis of the support shaft is horizontal and connects the tray and the weighing sensor, and the support shaft bears the weight of the tray, the tray can rotate around the axis of the support shaft, and the driving assembly is used to drive the tray to reciprocate around the axis of the support shaft, and when the driving assembly drives the tray to rotate, the tray can rotate until the center of gravity and the axis of the support shaft are in the same vertical plane;
[0011] A position detection sensor is connected to the weighing sensor. When the position detection sensor is triggered, it sends a signal to the control system to record the measurement data of the weighing sensor. It is suitable for triggering the position detection sensor when the pallet rotates to the point where the center of gravity and the axis of the support shaft are in the same vertical plane.
[0012] Preferably, a mounting seat is connected to the bottom of the tray, the support shaft connects the mounting seat and the weighing sensor, the mounting seat can rotate around the axis of the support shaft, and the support shaft and the tray are spaced apart in a direction perpendicular to the axis of the support shaft.
[0013] Preferably, the driving assembly comprises a motor and a driving shaft, the motor is connected to the weighing sensor, the driving shaft is connected to the mounting seat, and the axis of the motor output shaft and the axis of the driving shaft are both parallel to the axis of the supporting shaft;
[0014] A driving groove is provided on the mounting seat, and the driving groove is provided in a direction perpendicular to the axis of the support shaft and parallel to the plane formed by the axis of the driving shaft and the axis of the support shaft. The driving shaft is arranged in the driving groove and can rotate around its own axis relative to the mounting seat. The driving shaft can move along the length direction of the driving groove and is restricted to move in a direction perpendicular to the plane formed by the axis of the driving shaft and the axis of the support shaft. The driving shaft is eccentrically connected to the output shaft of the motor.
[0015] Preferably, a driving wheel is coaxially fixedly connected to the motor output shaft, and the driving shaft is eccentrically connected to the driving wheel.
[0016] Preferably, the axis of the support shaft and the axis of the motor output shaft are located in the same vertical plane.
[0017] Preferably, the tray is connected to a triggering member for triggering the position detection sensor.
[0018] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:
[0019] 1. The present application provides a shaking mechanism, in which a tray is used to support the blood bag. The tray is connected to the weighing sensor through a support shaft, and the tray is driven to reciprocate around the axis of the support shaft by a driving mechanism, so that the shaking of the tray drives the blood bag to shake and thus the blood components are shaken to achieve a shaking function. The shaking mechanism is provided to be connected to the weighing sensor, so that the weight of the blood bag can be weighed by the weighing sensor to achieve a weighing function. A position detection sensor is provided, and the position detection sensor is triggered when the tray rotates to the point where the center of gravity and the axis of the support shaft are in the same vertical plane. When the position detection sensor is triggered, a signal is sent to the control system to record the measurement data of the weighing sensor, that is, during the shaking process, the control system records and displays the measurement data of the weighing sensor only when the tray rotates to the point where the center and the axis of the support shaft are in the same vertical plane. The measurement result in this state is highly accurate, and the problem of inaccurate measurement caused by fluctuations in the measurement result due to the movement of the center of gravity when the tray is shaken is avoided. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 A schematic diagram of the structure of a blood bag shaking and weighing mechanism of a blood component preparation and separation machine provided in an embodiment of the utility model;
[0021] Figure 2 This is a structural schematic diagram from another perspective of the blood bag shaking and weighing mechanism of the blood component preparation and separation machine provided in an embodiment of the utility model.
[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0023] 1. Base; 2. Weighing sensor; 3. Shaking mechanism; 31. Tray; 32. Support shaft; 33. Motor; 34. Drive shaft; 35. Drive wheel; 4. Support seat; 5. Mounting seat; 51. Drive slot; 6. Position detection sensor; 7. Trigger; 8. Connecting seat. DETAILED DESCRIPTION
[0024] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.
[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.
[0026] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.
[0027] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.
[0028] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.
[0029] Reference Figure 1-2 As shown, an embodiment of the present application provides a blood bag shaking and weighing mechanism for a blood component preparation and separation machine, which includes a base 1, a weighing sensor 2 and a shaking mechanism 3. The base 1 serves as a foundation to support other structures, the weighing sensor 2 is connected to the base 1, and the shaking mechanism 3 is connected to the weighing sensor 2, including a tray 31, a support shaft 32 and a driving assembly. The axis of the support shaft 32 is horizontal and connects the tray 31 and the weighing sensor 2, and the support shaft 32 bears the gravity of the tray 31, and the tray 31 can rotate around the axis of the support shaft 32. The driving assembly is used to drive the tray 31 to reciprocate around the axis of the support shaft 32. When the driving assembly drives the tray 31 to rotate, the tray 31 can rotate until the center of gravity and the axis of the support shaft 32 are in the same vertical plane.
[0030] Reference Figure 1-2As shown, specifically, in this embodiment, the base 1 is arranged horizontally in a plate shape, and a support base 4 for installing a weighing sensor 2 is fixed above the base 1. The weighing sensor 2 is located above the base 1 and fixed on the support base 4, and the weighing sensor 2 and the base 1 are spaced apart in the vertical direction so that the weighing sensor 2 can be deformed to realize the weighing function.
[0031] Reference Figure 1-2 As shown, a mounting seat 5 is connected to the bottom of the tray 31, a support shaft 32 connects the mounting seat 5 and the weighing sensor 2, the mounting seat 5 can rotate around the axis of the support shaft 32, and the support shaft 32 and the tray 31 are spaced apart in a direction perpendicular to the axis of the support shaft 32. The arrangement of the mounting seat 5 facilitates the connection between the tray 31 and the support shaft 32, and the mounting seat 5 only needs to rotate a small angle to make the tray 31 rotate a large angle, which can reduce the amplitude of the driving assembly driving the mounting seat 5 to rotate so as to reduce the volume of the driving assembly.
[0032] Reference Figure 1-2 As shown, further, the driving assembly includes a motor 33 and a driving shaft 34, the motor 33 is connected to the weighing sensor 2, the driving shaft 34 is connected to the mounting seat 5, the axis of the output shaft of the motor 33 and the axis of the driving shaft 34 are both parallel to the axis of the support shaft 32; a driving groove 51 is opened on the mounting seat 5, the driving groove 51 is opened in a direction perpendicular to the axis of the support shaft 32 and parallel to the plane formed by the axis of the driving shaft 34 and the axis of the support shaft 32, the driving shaft 34 is arranged in the driving groove 51 and can rotate around its own axis relative to the mounting seat 5, the driving shaft 34 can move along the length direction of the driving groove 51, and is restricted to move in a direction perpendicular to the plane formed by the axis of the driving shaft 34 and the axis of the support shaft 32, and the driving shaft 34 is eccentrically connected to the output shaft of the motor 33.
[0033] With this arrangement, when the motor 33 is started, the output shaft of the motor 33 rotates to drive the drive shaft 34 to rotate with the output shaft of the motor 33. During the rotation of the drive shaft 34, the drive shaft 34 cooperates with the drive slot 51 to drive the mounting seat 5 to rotate around the axis of the support shaft 32. The arrangement of the drive slot 51 ensures that the drive shaft 34 can rotate smoothly. In this embodiment, the length of the drive slot 51 is set to enable the drive shaft 34 to rotate 360° with the output shaft of the motor 33. In this way, when the output shaft of the motor 33 rotates continuously in one direction, the drive shaft 34 can cooperate with the drive slot 51 to drive the mounting seat 5 to reciprocate around the support shaft 32, so as to achieve the function of shaking the tray 31. In other embodiments, the function of driving the mounting seat 5 to reciprocate around the support shaft 32 by cooperating with the drive shaft 34 and the drive slot 51 can be achieved by switching the rotation direction of the output shaft of the motor 33.
[0034] Reference Figure 1-2As shown, further, the axis of the support shaft 32 and the axis of the output shaft of the motor 33 are located in the same vertical plane. At the same time, a drive wheel 35 is coaxially fixedly connected to the output shaft of the motor 33, and the drive shaft 34 is eccentrically connected to the drive wheel 35, thereby facilitating the assembly of the drive component.
[0035] Reference Figure 1-2 As shown, further, a position detection sensor 6 is also provided on the weighing sensor 2. When the position detection sensor 6 is triggered, it sends a signal to the control system to record the measurement data of the weighing sensor 2. It is suitable for triggering the position detection sensor 6 when the tray 31 rotates to the point where the center of gravity and the axis of the support shaft 32 are in the same vertical plane.
[0036] By setting a position detection sensor 6, the position detection sensor 6 is triggered when the tray 31 rotates to the point where the center of gravity and the axis of the support shaft 32 are in the same vertical plane. When the position detection sensor 6 is triggered, a signal is sent to the control system to record the measurement data of the weighing sensor 2. That is, during the shaking process, the control system records and displays the measurement data of the weighing sensor 2 only when the tray 31 rotates to the point where the center of gravity and the axis of the support shaft 32 are in the same vertical plane. The measurement results in this state are highly accurate, avoiding the problem of inaccurate measurement due to fluctuations in the measurement results caused by the movement of the center of gravity when the tray 31 is shaken.
[0037] Reference Figure 1-2 As shown, further, specifically, a triggering member 7 for triggering the position detection sensor 6 is connected to the tray 31. The position detection sensor 6 can be a photoelectric sensor, and its transmitting end and receiving end are arranged at intervals along the axis direction of the support shaft 32. When the center of gravity of the tray 31 and the axis of the support shaft 32 are in the same vertical plane, the triggering member 7 is located between the receiving end and the transmitting end of the position detection sensor 6, thereby triggering the position detection sensor 6. In this embodiment, the position detection sensor 6 is arranged below the support shaft 32, and the triggering member 7 is arranged at one end of the mounting seat 5 away from the tray 31.
[0038] Reference Figure 1-2 As shown, further, a connecting seat 8 is connected to the weighing sensor 2, and the support shaft 32, the motor 33 and the position detection sensor 6 are all connected to the connecting seat 8. The setting of the connecting seat 8 facilitates the connection of the shaking mechanism 3 to the weighing sensor 2.
[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A blood bag shaking and weighing mechanism for a blood component preparation and separation machine, characterized in that: include: Base (1); A weighing sensor (2) connected to the base (1); A shaking mechanism (3) connected to the weighing sensor (2), comprising a tray (31), a support shaft (32) and a driving assembly, wherein the axis of the support shaft (32) is horizontal and connects the tray (31) and the weighing sensor (2), and the support shaft (32) bears the weight of the tray (31), and the tray (31) can rotate around the axis of the support shaft (32), and the driving assembly is used to drive the tray (31) to reciprocate around the axis of the support shaft (32), and when the driving assembly drives the tray (31) to rotate, the tray (31) can rotate until the center of gravity and the axis of the support shaft (32) are in the same vertical plane; A position detection sensor (6) is connected to the weighing sensor (2). When the position detection sensor (6) is triggered, it sends a signal to the control system to record the measurement data of the weighing sensor (2). The position detection sensor (6) is suitable for triggering the position detection sensor (6) when the tray (31) rotates to the point where the center of gravity and the axis of the support shaft (32) are in the same vertical plane.
2. The blood bag shaking and weighing mechanism for the blood component preparation and separation machine according to claim 1 is characterized in that: A mounting seat (5) is connected to the bottom of the tray (31); the support shaft (32) connects the mounting seat (5) and the weighing sensor (2); the mounting seat (5) can rotate around the axis of the support shaft (32); the support shaft (32) and the tray (31) are spaced apart in a direction perpendicular to the axis of the support shaft (32).
3. The blood bag shaking and weighing mechanism for the blood component preparation and separation machine according to claim 2 is characterized in that: The driving assembly comprises a motor (33) and a driving shaft (34), wherein the motor (33) is connected to the weighing sensor (2), and the driving shaft (34) is connected to the mounting seat (5), and the axis of the output shaft of the motor (33) and the axis of the driving shaft (34) are both parallel to the axis of the supporting shaft (32); The mounting seat (5) is provided with a driving groove (51), and the driving groove (51) is provided in a direction perpendicular to the axis of the support shaft (32) and parallel to a plane formed by the axis of the driving shaft (34) and the axis of the support shaft (32). The driving shaft (34) is arranged in the driving groove (51) and can rotate around its own axis relative to the mounting seat (5). The driving shaft (34) can move along the length direction of the driving groove (51) and is restricted to move in a direction perpendicular to the plane formed by the axis of the driving shaft (34) and the axis of the support shaft (32). The driving shaft (34) is eccentrically connected to the output shaft of the motor (33).
4. The blood bag shaking and weighing mechanism for the blood component preparation and separation machine according to claim 3, characterized in that; A driving wheel (35) is coaxially and fixedly connected to the output shaft of the motor (33), and the driving shaft (34) is eccentrically connected to the driving wheel (35).
5. The blood bag shaking and weighing mechanism for the blood component preparation and separation machine according to claim 3 is characterized in that: The axis of the support shaft (32) and the axis of the output shaft of the motor (33) are located in the same vertical plane.
6. The blood bag shaking and weighing mechanism for the blood component preparation and separation machine according to claim 1, characterized in that: The tray (31) is connected to a triggering member (7) for triggering the position detection sensor (6).