Sample tube shaking device

Abstract

The utility model discloses a sample tube shaking device which comprises a horizontal moving seat, the horizontal moving seat is connected with a horizontal driving mechanism, a support is arranged on the horizontal moving seat, a vertical lead screw is arranged on the support, one end of the lead screw is in transmission connection with a lead screw motor, a nut is matched with the lead screw, a mounting plate is arranged on one side of the nut, and the mounting plate is arranged on the other side of the nut. A horizontal rotating shaft is arranged on the mounting plate, one end of the horizontal rotating shaft is in transmission connection with a rotating motor, and a clamp for clamping a sample tube is arranged at the other end of the horizontal rotating shaft; according to the scheme, the driving motor and the lead screw motor can drive the clamp to move in the horizontal direction and the vertical direction so that the clamp can clamp a sample tube on a station, and the rotating motor is matched to simulate a human hand to shake and reverse the sample tube, so that sample liquid in the sample tube is automatically and uniformly mixed, and after the sample tube is uniformly mixed, the sample tube is separated from the sample tube. And then the sample tube is put back to the station.

Description

Technical Field

[0001] The utility model relates to the technical field of sample tube collection, and particularly relates to a sample tube shaking device. Background Art

[0002] Before sampling the sample liquid in the sample tube, it is necessary to shake the sample liquid in the sample tube to avoid situations such as layering and solidification of the sample liquid (when the sample liquid is blood), so as to enhance the reliability of subsequent sample liquid detection; currently, generally, the sample liquid in the sample tube is shaken by manually holding and shaking. When the number of sample tubes is large, the manual operation has a high labor intensity, is easy to fatigue and has low efficiency; at the same time, when the tester shakes the sample tube, there is a risk that the sample tube will drop out of the hand, thus triggering a sampling and detection accident. Content of the Utility Model

[0003] Aiming at the above deficiencies of the prior art, the utility model provides a sample tube shaking device that can simulate the human hand to shake the sample tube.

[0004] To achieve the above object, the technical solution adopted by the utility model is as follows:

[0005] Provide a sample tube shaking device, which includes a horizontal moving seat, the horizontal moving seat is connected with a horizontal driving mechanism, a bracket is arranged on the horizontal moving seat, a vertical lead screw is arranged on the bracket, one end of the lead screw is in transmission connection with a lead screw motor, a nut is fitted on the lead screw, a mounting plate is arranged on one side of the nut, a horizontal rotating shaft is arranged on the mounting plate, one end of the horizontal rotating shaft is in transmission connection with a rotating motor, and a clamp for clamping the sample tube is arranged at the other end of the horizontal rotating shaft.

[0006] Further, the clamp includes a base, one end of the base is pivotally connected to the horizontal rotating shaft, two elastic clamping plates for clamping the side wall of the sample tube are arranged at the other end of the base, and an elastic baffle for abutting against the top cover of the sample tube is arranged above the elastic clamping plates.

[0007] Further, the two elastic clamping plates are arranged in parallel with a gap, the middle parts of the two elastic clamping plates are V-shaped bending plates for facilitating the clamping of the sample tube, and flare plates are arranged at the front ends of the two elastic clamping plates, and the two flare plates are arranged in a spread-out shape.

[0008] Further, the front end of the elastic baffle is a horizontal plate, and a transition plate inclined upward is arranged at the front end of the horizontal plate.

[0009] Furthermore, the horizontal moving seat, the nut and the base are respectively provided with a first stroke plate, a second stroke plate and a third stroke plate. The first stroke plate cooperates with the two first position sensors, and the spacing between the two first position sensors is equal to the stroke of the horizontal moving seat. The second stroke plate cooperates with the two second position sensors, and the spacing between the two second position sensors is equal to the stroke of the nut. The third stroke plate cooperates with the third position sensor.

[0010] Furthermore, a fourth position sensor is provided on the mounting plate, and the fourth position sensor is located below the base.

[0011] Furthermore, the horizontal driving mechanism includes a conveyor belt connected to the driving motor, a connecting block is provided on the conveyor belt, the connecting block is fixedly connected to one side of the horizontal movable seat, a horizontal slider is provided at the bottom of the horizontal movable seat and slidably cooperates with the horizontal guide rail, a vertical slider is provided on the mounting plate, and the vertical slider slidably cooperates with the vertical guide rail fixed on the bracket.

[0012] The beneficial effects of the utility model are:

[0013] 1. This solution can drive the clamp to move in the horizontal and vertical directions through the driving motor and the lead screw motor, so that the clamp can clamp the sample tube on the workstation, and then cooperate with the rotating motor to simulate the shaking and inverting operations of the sample tube by hand, thereby realizing automatic mixing of the sample liquid in the sample tube. After the sample tube is mixed, the sample tube can be put back to the workstation.

[0014] 2. When the clamp of the present scheme clamps the sample tube, the elastic clamping plate can clamp the side wall of the sample tube close to the top cover, and the elastic clamping plate can abut against the inner end of the top cover of the sample tube, and the elastic baffle can abut against the outer end of the top cover of the sample tube, so as to achieve a firm clamping of the sample tube and effectively prevent the sample tube from falling off the clamp when shaking.

[0015] 3. This solution can monitor and feedback-control the horizontal stroke and lifting stroke of the clamp through the cooperation of the first stroke piece and the two first position sensors, and the cooperation of the second stroke piece and the two second position sensors. Through the cooperation of the third stroke piece and the third position sensor, it can detect whether the rotation angle of the clamp is in place to avoid misalignment caused by tilt error between the clamp and the sample tube. The fourth position sensor can detect whether the sample tube is clamped on the clamp, providing safety guarantee for the normal operation of this solution after power failure and restart. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a first structural schematic diagram of a sample tube shaking device.

[0017] Figure 2 This is a second structural schematic diagram of the sample tube shaking device.

[0018] Among them, 1. Horizontal moving seat, 2. Bracket, 3. Lead screw, 4. Lead screw motor, 5. Nut, 6. Mounting plate, 7. Horizontal rotating shaft, 8. Rotating motor, 9. Base, 10. Elastic clamping plate, 101. V-shaped bending plate, 102. Flaring plate, 11. Elastic baffle, 111. Horizontal plate, 112. Transition plate, 13. First travel piece, 14. Second travel piece, 15. Third travel piece, 16. First position sensor, 17. Second position sensor, 18. Third position sensor, 19. Fourth position sensor, 20. Driving motor, 21. Conveyor belt, 22. Horizontal guide rail, 23. Horizontal slider, 24. Vertical slider, 25. Vertical guide rail, 26. Sample tube, 27. Top cover. Specific embodiments

[0019] The specific embodiments of the present invention will be described below to facilitate those skilled in the art of this technology to understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art of this technology, as long as various changes are within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all utility models created using the concept of the present invention are within the scope of protection.

[0020] As Figure 1 and Figure 2 shown, the sample tube shaking device of this solution includes a horizontal moving seat 1. The horizontal moving seat 1 is connected to a horizontal driving mechanism. The horizontal driving mechanism includes a conveyor belt 21 that is in transmission connection with a driving motor 20. A connecting block is provided on the conveyor belt 21, and the connecting block is fixedly connected to one side of the horizontal moving seat 1. A horizontal slider 23 that is slidably matched with a horizontal guide rail 22 is provided at the bottom of the horizontal moving seat 1; so as to facilitate the smooth horizontal movement of the horizontal moving seat 1.

[0021] A bracket 2 is provided on the horizontal moving seat 1. A vertical lead screw 3 is provided on the bracket 2. One end of the lead screw 3 is in transmission connection with a lead screw motor 4. A nut 5 is fitted on the lead screw 3. A mounting plate 6 is provided on one side of the nut 5. A vertical slider 24 is provided on the mounting plate 6. The vertical slider 24 is slidably matched with a vertical guide rail 25 fixed on the bracket 2; so as to facilitate the smooth vertical movement of the mounting plate 6; A horizontal rotating shaft 7 is provided on the mounting plate 6. One end of the horizontal rotating shaft 7 is in transmission connection with a rotating motor 8. The other end of the horizontal rotating shaft 7 is provided with a fixture for clamping the sample tube 26.

[0022] In this solution, the driving motor 20 and the lead screw motor 4 can drive the fixture to move in the horizontal and vertical directions, so as to facilitate the fixture to clamp the sample tube 26 on the working station. Then, in cooperation with the rotating motor 8, it can simulate the operation of shaking and inverting the sample tube 26 by hand, thereby realizing the automatic mixing of the sample liquid in the sample tube 26. After the sample tube 26 is mixed, the sample tube 26 can be placed back on the working station.

[0023] In the design, the fixture includes a base 9. One end of the base 9 is pivotally connected to a horizontal rotating shaft 7. At the other end of the base 9, there are two elastic clamping plates 10 for clamping the side wall of the sample tube 26. The two elastic clamping plates 10 are arranged in parallel with a gap. The middle parts of the two elastic clamping plates 10 are V-shaped bending plates 101 for facilitating the clamping of the sample tube 26. At the front ends of the two elastic clamping plates 10, there are flaring plates 102, and the two flaring plates 102 are arranged in a V-shaped layout; above the elastic clamping plates 10, there is an elastic baffle 11. The front end of the elastic baffle 11 is a horizontal plate 111 for abutting against the top cover 27 of the sample tube 26. At the front end of the horizontal plate 111, there is an upwardly inclined transition plate 112.

[0024] When the fixture of this solution clamps the sample tube 26, the elastic clamping plate 10 can clamp the side wall of the sample tube 26 near the top cover 27, and the elastic clamping plate 10 can abut against the inner end of the top cover 27 of the sample tube 26. The elastic baffle 11 can abut against the outer end of the top cover 27 of the sample tube 26, so as to realize the stable clamping of the sample tube 26 and effectively prevent the sample tube 26 from falling off the fixture during shaking.

[0025] First travel pieces 13, second travel pieces 14 and third travel pieces 15 are respectively arranged on the horizontal moving seat 1, the nut 5 and the base 9. The first travel piece 13 cooperates with two first position sensors 16, and the distance between the two first position sensors 16 is equal to the travel of the horizontal moving seat 1, so as to realize the monitoring and feedback control of the horizontal travel of the fixture; the second travel piece 14 cooperates with two second position sensors 17, and the distance between the two second position sensors 17 is equal to the travel of the nut 5, so as to realize the monitoring and feedback control of the lifting travel of the fixture; the third travel piece 15 cooperates with the third position sensor 18, which can detect whether the rotation angle of the fixture is in place, avoiding the situation of misalignment caused by the inclination error between the fixture and the sample tube 26; a fourth position sensor 19 is arranged on the mounting plate 6, and the fourth position sensor 19 is located below the base 9. The fourth position sensor 19 can detect whether the sample tube 26 is clamped on the fixture, providing safety guarantee for the normal operation of this solution after power failure and restart.

[0026] Particularly, the first position sensor 16, the second position sensor 17 and the third position sensor 18 of this solution can preferably be proximity type opposed photoelectric sensors, and the fourth position sensor 19 can preferably be a proximity type diffuse reflection photoelectric sensor.

Claims

1. A sample tube shaking device, characterized in that: It includes a horizontal movable seat, which is connected to a horizontal driving mechanism, a bracket is arranged on the horizontal movable seat, a vertical screw is arranged on the bracket, one end of the screw is connected to a screw motor, a nut is matched on the screw, a mounting plate is arranged on one side of the nut, a horizontal rotating shaft is arranged on the mounting plate, one end of the horizontal rotating shaft is connected to a rotating motor, and the other end of the horizontal rotating shaft is provided with a clamp for clamping a sample tube.

2. The sample tube shaking device according to claim 1, characterized in that: The clamp comprises a base, one end of which is pivotally connected to a horizontal shaft, and the other end of the base is provided with two elastic clamping plates for clamping the side walls of the sample tube, and an elastic baffle for abutting against the top cover of the sample tube is provided above the elastic clamping plates.

3. The sample tube shaking device according to claim 2, characterized in that: The two elastic clamping plates are spaced apart and arranged side by side. The middle parts of the two elastic clamping plates are V-shaped bending plates for clamping the sample tube. The front ends of the two elastic clamping plates are provided with expansion plates, and the two expansion plates are arranged in an eight-shaped shape.

4. The sample tube shaking device according to claim 2, characterized in that: The front end of the elastic baffle is a horizontal plate, and the front end of the horizontal plate is provided with an upwardly inclined transition plate.

5. The sample tube shaking device according to claim 2, characterized in that: The horizontal moving seat, nut and base are respectively provided with a first stroke piece, a second stroke piece and a third stroke piece. The first stroke piece cooperates with two first position sensors, and the spacing between the two first position sensors is equal to the stroke of the horizontal moving seat. The second stroke piece cooperates with two second position sensors, and the spacing between the two second position sensors is equal to the stroke of the nut. The third stroke piece cooperates with the third position sensor.

6. The sample tube shaking device according to claim 2, characterized in that: A fourth position sensor is arranged on the mounting plate, and the fourth position sensor is located below the base.

7. The sample tube shaking device according to claim 1, characterized in that: The horizontal driving mechanism includes a conveyor belt transmission-connected to a driving motor, a connecting block is provided on the conveyor belt, the connecting block is fixedly connected to one side of a horizontal movable seat, a horizontal slider slidably matched with a horizontal guide rail is provided at the bottom of the horizontal movable seat, a vertical slider is provided on the mounting plate, and the vertical slider slidably matched with a vertical guide rail fixed on a bracket.

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