Sample mixing device and analyzer

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By designing a sample mixing device including a bracket, a driving component, a mixing component and a limiter, the problem of grasping failure caused by the tilt of the sample test tube in the existing technology is solved, and effective mixing and mechanical grasping of the sample test tube are realized. High accuracy grasping by hand.

CN222368895UActive Publication Date: 2025-01-21SHENZHEN COMEN MEDICAL INSTR

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Patent Information

Application Number: CN202421063759.X
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-05-15
Publication Date: 2025-01-21
Estimated Expiration: 2034-05-15

AI Technical Summary

Technical Problem

The existing sample mixing device has an acute angle between the central axis of the sample test tube and the rotation axis of the container, which causes the sample test tube to be in an inclined state, which is inconvenient for mechanical grippers to grasp, and the failure rate is high.

Method used

A sample mixing device is designed, including a bracket, a driving component, a mixing component and a stopper. The mixing assembly consists of a rotating shaft and an eccentrically connected accommodation sleeve. The driving assembly drives the rotating shaft to drive the accommodation sleeve to rotate. Under the limit of the limit groove, the sample test tube can swing eccentrically until it is perpendicular to the working surface, making it convenient for the mechanical gripper to grasp. Pick.

Benefits of technology

Through the eccentric swing design, the sample test tubes can be effectively mixed and easily grasped by the mechanical gripper, which significantly improves the accuracy of sample test tube grabbing and reduces the failure rate.

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Abstract

The sample blending device comprises a support, a driving assembly, a blending assembly and a limiting piece, the blending assembly comprises a rotating shaft and a containing sleeve eccentrically connected to the rotating shaft, the driving assembly is installed on the support and connected with the rotating shaft, and the limiting piece is installed on the support and connected with the containing sleeve. The sample test tube can be placed in the containing sleeve from the limiting groove, the driving assembly drives the rotating shaft to drive the containing sleeve to rotate, the sample test tube eccentrically swings under limiting of the limiting groove, and when the axis of the containing sleeve and the axis of the limiting groove are located on the same straight line, the sample test tube is perpendicular to the working face. And the sample test tube can be conveniently grabbed by the mechanical gripper, so that the grabbing accuracy of the sample test tube is improved.

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Description

Technical Field

[0001] The utility model relates to the technical field of blood sample analysis, in particular to a sample mixing device and an analyzer. Background Art

[0002] When the sample mixing device measures a trace amount of blood sample, it is usually necessary to mix the peripheral blood in the sample tube in advance using a vortex oscillator or a finger flicking method, and then put it into the analyzer for measurement.

[0003] The existing sample mixing device uses a sample test tube to fix it in the sample container, so that the central axis of the sample test tube forms an acute angle with the rotation axis of the sample container. However, when the sample test tube is in the initial position or any other position, the sample test tube is in a tilted state, which is not convenient for the mechanical gripper to grasp, resulting in a high failure rate in grasping the sample test tube. Utility Model Content

[0004] Based on this, it is necessary to provide a sample mixing device and analyzer, aiming to solve the technical problem that the existing sample mixing device uses a sample test tube to fix it in a sample container, so that the central axis of the sample test tube forms an acute angle with the rotation axis of the sample container, but when the sample test tube is in the initial position or any other position, the sample test tube is in a tilted state, which is not convenient for a mechanical gripper to grasp, thereby resulting in a high failure rate in grasping the sample test tube.

[0005] In a first aspect, the utility model provides a sample mixing device, the sample mixing device comprises a bracket, a driving component, a mixing component and a stopper, the mixing component comprises a rotating shaft, and a receiving sleeve eccentrically connected to the rotating shaft, the driving component is mounted on the bracket and connected to the rotating shaft, the stopper is mounted on the bracket, the stopper is provided with a stopper groove, and the sample test tube can be placed in the receiving sleeve from the stopper groove;

[0006] The driving assembly drives the rotating shaft to drive the containing sleeve to rotate. Under the limitation of the limiting groove, the sample tube swings eccentrically. When the axis of the containing sleeve and the axis of the limiting groove are in the same straight line, the sample tube is vertically arranged to the working surface.

[0007] In one embodiment, the bracket is provided with a mounting hole, the limiting member includes a connecting portion and a mounting portion connected to the connecting portion, the connecting portion is provided with the limiting groove, and the mounting portion is installed in the mounting hole.

[0008] In one embodiment, the groove wall of the limiting groove is provided with notches evenly distributed along the circumferential direction.

[0009] In one embodiment, the sample mixing device further includes a fastener, which passes through the connecting portion and is connected to the bracket.

[0010] In one embodiment, the distance between the axis of the rotating shaft and the axis of the accommodating sleeve is greater than 0.

[0011] In one embodiment, the bracket includes a first frame and a second frame connected to the first frame, the limiting member is installed on the first frame, and the driving assembly is installed on the second frame.

[0012] In one embodiment, the sample mixing device further includes a sensor and a shielding piece, wherein the shielding piece is mounted on the rotating shaft, and the sensor is mounted on the bracket and is used to sense the shielding piece.

[0013] In one embodiment, the sample mixing device further includes a fixing member, and the sensor is mounted on the bracket via the fixing member.

[0014] In one embodiment, the driving assembly includes a driving motor and a transmission member, the driving motor is connected to the transmission member, and the transmission member is connected to the rotating shaft.

[0015] In a second aspect, the utility model also provides an analyzer, which includes an analysis module, a clamping module and a sample mixing device of any of the above embodiments, wherein the clamping module can transfer the sample tube to the sample mixing device, and the clamping module can also transfer the sample tube to the analysis module.

[0016] Implementing the embodiments of the present utility model will have the following beneficial effects:

[0017] The sample mixing device and analyzer of the utility model are adopted. The driving component of the sample mixing device is installed on the bracket and connected to the rotating shaft. The limiting member is installed on the bracket. The limiting member is provided with a limiting groove. The sample test tube can be placed in the accommodating sleeve from the limiting groove. The driving component drives the rotating shaft to drive the accommodating sleeve to rotate. Under the limitation of the limiting groove, the sample test tube can swing eccentrically, so as to mix the test tube. When the axis of the accommodating sleeve and the axis of the limiting groove are in the same straight line, the sample test tube is vertically arranged with the working surface, so that the sample test tube can be easily grasped by the mechanical gripper, thereby improving the accuracy of grasping the sample test tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] in:

[0020] Figure 1 Schematic diagram of an axonometric view of a sample mixing device in one embodiment.

[0021] Figure 2 for Figure 1 Exploded view of the sample mixing device shown.

[0022] Figure 3 for Figure 2 A partial enlarged schematic diagram of part A of the sample mixing device shown.

[0023] Figure 4 for Figure 1 Schematic diagram of the motion trajectory of the sample mixing device shown.

[0024] Figure 5 for Figure 1 A cross-sectional view of a mixing assembly in a sample mixing device is shown.

[0025] Reference numerals:

[0026] 1. Bracket; 11. First frame; 12. Second frame; 13. Mounting hole;

[0027] 2. Driving assembly; 21. Driving motor; 22. Transmission parts;

[0028] 3. Mixing component; 31. Rotating shaft; 32. Accommodating sleeve;

[0029] 4. Limiting member; 41. Limiting groove; 411. Notch; 42. Connecting part; 43. Mounting part;

[0030] 5. Fastener; 6. Sensor; 7. Shielding sheet; 8. Fixing piece;

[0031] 100. Sample test tube; 200. Clamping module. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the present utility model, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present utility model.

[0035] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0036] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0037] Please combine Figures 1 to 5 The sample mixing device provided by the utility model is now described, and the sample mixing device is used in an analyzer. The sample mixing device includes a bracket 1, a driving component 2, a mixing component 3 and a stopper 4. The mixing component 3 includes a rotating shaft 31 and a receiving sleeve 32 eccentrically connected to the rotating shaft 31. The driving component 2 is installed on the bracket 1 and connected to the rotating shaft 31. The stopper 4 is installed on the bracket 1. The stopper 4 is provided with a stopper groove 41. The sample test tube 100 can be placed in the receiving sleeve 32 from the stopper groove 41.

[0038] The driving assembly 2 drives the rotating shaft 31 to drive the containing sleeve 32 to rotate. Under the limitation of the limiting groove 41, the sample tube 100 swings eccentrically. When the axis of the containing sleeve 32 and the axis of the limiting groove 41 are in the same straight line, the sample tube 100 is vertically arranged to the working surface.

[0039] It can be understood that the driving component 2 of the sample mixing device is installed on the bracket 1 and connected to the rotating shaft 31. The limiting member 4 is installed on the bracket 1. The limiting member 4 is provided with a limiting groove 41. The sample test tube 100 can be placed in the accommodating sleeve 32 from the limiting groove 41. The driving component 2 drives the rotating shaft 31 to drive the accommodating sleeve 32 to rotate. Under the limitation of the limiting groove 41, the sample test tube 100 can swing eccentrically to mix the test tube. When the axis of the accommodating sleeve 32 and the axis of the limiting groove 41 are in the same straight line, the sample test tube 100 is vertically arranged to the working surface, so that the sample test tube 100 can be easily grasped by the mechanical gripper, thereby improving the accuracy of grasping the sample test tube 100.

[0040] It should be noted that since the containing sleeve 32 is eccentrically connected to the rotating shaft 31, the rotating shaft 31 drives the containing sleeve 32 to rotate eccentrically, so that the containing sleeve 32 drives the sample test tube 100 to produce eccentric swing. Under the restriction of the limiting groove 41, the swing trajectory of the sample test tube 100 is conical, thereby improving the mixing effect of the sample test tube 100.

[0041] In this embodiment, the bracket 1 is provided with a mounting hole 13, the limiting member 4 includes a connecting portion 42 and a mounting portion 43 connected to the connecting portion 42, the connecting portion 42 is provided with a limiting groove 41, and the mounting portion 43 is installed in the mounting hole 13. By providing the mounting hole 13, the mounting portion 43 can be stably installed on the bracket 1.

[0042] Further, the sample mixing device further comprises a fastener 5, which passes through the connection portion 42 and is connected to the bracket 1. Specifically, the fastener 5 may be a bolt, which passes through the connection portion 42 and is threadedly connected to the bracket 1, so that the stopper 4 can be more stably mounted on the bracket 1.

[0043] In one embodiment, if Figure 3 As shown, the groove wall of the limiting groove 41 is provided with notches 411 evenly distributed along the circumferential direction. By providing the notches 411, the contact area between the sample tube 100 and the groove wall of the limiting groove 41 is reduced during the swinging process of the sample tube 100, thereby reducing the swing collision noise of the sample tube 100.

[0044] In one embodiment, if Figure 5 As shown, the distance between the axis of the rotating shaft 31 and the axis of the accommodating sleeve 32 is greater than 0. Specifically, the distance between the axis of the rotating shaft 31 and the axis of the accommodating sleeve 32 can be any value greater than 0. In implementation, as long as the rotating shaft 31 and the accommodating sleeve 32 are eccentric.

[0045] In one embodiment, if Figure 2As shown, the bracket 1 includes a first frame 11 and a second frame 12 connected to the first frame 11, the stopper 4 is installed on the first frame 11, and the driving assembly 2 is installed on the second frame 12. By arranging the first frame 11 and the second frame 12, a certain distance can be generated between the stopper 4 and the receiving sleeve 32, so that the sample tube 100 can be placed in the receiving sleeve 32 in the extending direction of the sample tube 100.

[0046] In one embodiment, continue as Figure 2 As shown, the sample mixing device further includes a sensor 6 and a shielding sheet 7, the shielding sheet 7 is mounted on the rotating shaft 31, and the sensor 6 is mounted on the bracket 1 and is used to sense the shielding sheet 7. The driving assembly 2 drives the rotating shaft 31 to rotate, and the rotating shaft 31 drives the accommodating sleeve 32 and the shielding sheet 7 to rotate. When the sensor 6 senses the shielding sheet 7, the axis of the limiting groove 41 and the axis of the accommodating sleeve 32 are in the same straight line, that is, the accommodating sleeve 32 is returned to the zero position, so as to facilitate the mechanical gripper to grasp.

[0047] In this embodiment, the sample mixing device further includes a fixing member 8, and the sensor 6 is mounted on the bracket 1 via the fixing member 8. By providing the fixing member 8, the sensor 6 can be stably mounted on the bracket 1.

[0048] In one embodiment, continue as Figure 2 As shown, the driving assembly 2 includes a driving motor 21 and a transmission member 22, the driving motor 21 is connected to the transmission member 22, and the transmission member 22 is connected to the rotating shaft 31. The driving motor 21 drives the transmission member 22 to rotate, the transmission member 22 drives the rotating shaft 31 to rotate, and the rotating shaft 31 drives the accommodating sleeve 32 to rotate. Specifically, the transmission member 22 can be a transmission shaft. The transmission shaft is inserted into the rotating shaft 31, and the fastening bolt passes through the rotating shaft 31 and is connected to the transmission shaft, so that the transmission shaft and the rotating shaft 31 can be firmly connected.

[0049] The utility model also provides an analyzer, which includes an analysis module, a clamping module 200 and a sample mixing device of any of the above embodiments. The clamping module 200 can transfer the sample tube 100 to the sample mixing device, and the clamping module 200 can also transfer the sample tube 100 to the analysis module.

[0050] It can be understood that the analyzer of the present invention uses the above-mentioned sample mixing device, the driving component 2 of the sample mixing device is installed on the bracket 1 and connected to the rotating shaft 31, the limit member 4 is installed on the bracket 1, the limit member 4 is provided with a limit groove 41, the sample test tube 100 can be placed in the accommodating sleeve 32 from the limit groove 41, the driving component 2 drives the rotating shaft 31 to drive the accommodating sleeve 32 to rotate, under the limitation of the limit groove 41, the sample test tube 100 can swing eccentrically, so as to mix the test tube, when the axis of the accommodating sleeve 32 and the axis of the limit groove 41 are in the same straight line, the sample test tube 100 is placed vertically or horizontally, so that the sample test tube 100 can be easily grasped by the mechanical gripper, thereby improving the accuracy of grasping the sample test tube 100.

[0051] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A sample mixing device, characterized in that: The sample mixing device comprises a support, a driving component, a mixing component and a stopper, wherein the mixing component comprises a rotating shaft and a receiving sleeve eccentrically connected to the rotating shaft, the driving component is mounted on the support and connected to the rotating shaft, the stopper is mounted on the support, and the stopper is provided with a stopper groove, and the sample test tube can be placed in the receiving sleeve from the stopper groove; The driving assembly drives the rotating shaft to drive the containing sleeve to rotate. Under the limitation of the limiting groove, the sample tube swings eccentrically. When the axis of the containing sleeve and the axis of the limiting groove are in the same straight line, the sample tube is vertically arranged to the working surface.

2. The sample mixing device according to claim 1, characterized in that: The bracket is provided with a mounting hole, the limiting member includes a connecting portion and a mounting portion connected to the connecting portion, the connecting portion is provided with the limiting groove, and the mounting portion is installed in the mounting hole.

3. The sample mixing device according to claim 2, characterized in that: The groove wall of the limiting groove is provided with notches evenly distributed along the circumferential direction.

4. The sample mixing device according to claim 2, characterized in that: The sample mixing device further comprises a fastener, which passes through the connecting portion and is connected to the bracket.

5. The sample mixing device according to claim 1, characterized in that: The distance between the axis of the rotating shaft and the axis of the accommodating sleeve is greater than 0.

6. The sample mixing device according to claim 1, characterized in that: The bracket includes a first frame body and a second frame body connected to the first frame body, the limiting member is installed on the first frame body, and the driving assembly is installed on the second frame body.

7. The sample mixing device according to claim 1, characterized in that: The sample mixing device further comprises a sensor and a shielding sheet, wherein the shielding sheet is mounted on the rotating shaft, and the sensor is mounted on the bracket and is used to sense the shielding sheet.

8. The sample mixing device according to claim 7, characterized in that: The sample mixing device further comprises a fixing member, and the sensor is mounted on the bracket via the fixing member.

9. The sample mixing device according to claim 1, characterized in that: The driving assembly includes a driving motor and a transmission member, wherein the driving motor is connected to the transmission member, and the transmission member is connected to the rotating shaft.

10. An analyzer, characterized in that: The analyzer comprises an analysis module, a clamping module and a sample mixing device as described in any one of claims 1 to 9, wherein the clamping module can transfer the sample tube to the sample mixing device, and the clamping module can also transfer the sample tube to the analysis module.