An automatic rotating sampling tube device

Abstract

This utility model discloses an automatic sampling tube rotation device, comprising a mounting plate, two gripper assembly plates slidably connected to the bottom surface of the mounting plate, each gripper assembly plate having a bearing step surface at its lower end for supporting the blood collection tube; a first elastic reset member connecting the two gripper assembly plates to maintain the normal clamping state of the sampling tube by the two gripper assembly plates; a gripper drive assembly, the fixed end of which is connected to the mounting plate, and the drive end of which acts on the two gripper assembly plates respectively, driving the two gripper assembly plates to move in a direction away from each other; at least one gripper assembly plate has a rotation drive assembly at its lower end, the drive end of which drives the blood collection tube on the bearing step surface of the two gripper assembly plates to rotate around its axis. This utility model can rotate the barcode on the blood collection tube in the two gripper assembly plates to the scanning area of ​​the barcode scanner, greatly improving the efficiency of fast and accurate barcode recognition.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to an automatic rotating sampling tube device. Background Technology

[0002] In the field of automated testing of medical devices, the identification and information collection of sampling tubes are crucial steps in the pre-testing process for clinical testing. Currently, hospital laboratories and third-party testing institutions generally use automated systems to process sampling tubes in batches. The rapid and accurate identification of barcodes on the sampling tubes directly affects the reliability of sample traceability and testing efficiency.

[0003] In the actual handling of sampling tubes, they are usually placed randomly on the tube rack. At this time, the barcode on the sampling tube may not be directly aligned with the scanning area of ​​the barcode scanner. The traditional method of scanning sampling tubes is to manually rotate the sampling tube to make the barcode on the sampling tube rotate to the scanning area of ​​the barcode scanner for scanning. This not only increases labor costs, but also directly affects the detection efficiency of the sampling tubes. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an automatic sampling tube rotation device.

[0005] The technical solution of this utility model is:

[0006] An automatic rotating sampling tube device, characterized in that it includes a mounting plate, and two gripper assembly plates are slidably connected to the bottom surface of the mounting plate, and each gripper assembly plate has a bearing step surface at its lower end for supporting the blood collection tube.

[0007] A first elastic reset element is connected between the two gripper assembly plates to maintain the normal clamping state of the sampling tube by the two gripper assembly plates.

[0008] The gripper drive assembly has its fixed end connected to the mounting plate, and its drive end acts on the two gripper assembly plates respectively, which drives the two gripper assembly plates to move in a direction away from each other.

[0009] At least one gripper assembly plate has a rotary drive assembly on its lower end. The drive end of the rotary drive assembly drives the blood collection tubes on the bearing step surface in the two gripper assembly plates to rotate around their axis.

[0010] Furthermore, each of the gripper assembly plates includes a slider fixing plate, a back plate, and a gripper gripper that are fixedly connected to each other from top to bottom.

[0011] Each slider fixing plate is slidably connected to the mounting plate, and a column is provided on each of its front and rear sides. The first elastic reset member is connected to the column on the same side of the two slider fixing plates; the bearing step surface is provided on the gripper.

[0012] Furthermore, each gripper has an arc-shaped concave surface on the side facing the blood collection tube, and a rubber-coated bearing is rotatably connected to the bottom surface of each gripper. The upper surface of each rubber-coated bearing forms a bearing step surface relative to the outer wall of its corresponding arc-shaped concave surface.

[0013] When the gripper assembly plate is in the gripping state of the sampling tube, the two arc-shaped concave surfaces surround and form the limiting part of the sampling tube, which does not contact the outer wall of the sampling tube; the bearing step surfaces on the two grippers together form the receiving part of the blood collection tube.

[0014] Furthermore, each of the rubber-coated bearings is fitted with an anti-slip tape on its outer peripheral surface that contacts the blood collection tube.

[0015] Furthermore, the gripper drive assembly includes a gripper rotation drive motor and a cam block; the drive end of the gripper rotation drive motor passes vertically downward through the mounting plate and is connected to the cam block, which is located between the two slider fixing plates and on the same horizontal plane.

[0016] The cam block is rhomboid, with the two ends corresponding to its long diagonal being the first cam part and the two ends corresponding to its short diagonal being the second cam part. When the gripper assembly plate is in the gripping state of the sampling tube, the two second cam parts are adjacent to the inner side of the two slider fixing plates respectively, and the distance between the two first cam parts is greater than the distance between the two slider fixing plates, while the distance between the two second cam parts is less than the distance between the two slider fixing plates.

[0017] Furthermore, a hollow section is provided between the upper and lower surfaces of each of the first cam portions, and a rolling bearing is rotatably connected within each hollow section.

[0018] Furthermore, the rotary drive assembly includes a sampling tube rotary drive cylinder and a rotary drive wheel connected to its drive end;

[0019] The sampling tube rotation drive cylinder is mounted on the gripper, and the rotation drive wheel is connected to the rubber-coated bearing. The sampling tube rotation drive cylinder drives the rotation drive wheel to rotate, thereby driving the rubber-coated bearing to rotate synchronously.

[0020] Furthermore, on the bottom surface of the mounting plate, located between the two gripper assembly plates, there is also an upper positioning component for determining the clamping height of the blood collection tube. The upper positioning component includes:

[0021] The positioning base is fixed to the bottom surface of the mounting plate;

[0022] A floating top block is slidably connected to the bottom of the positioning base via a guide shaft in a vertical direction;

[0023] The second elastic reset component is arranged in a vertical direction perpendicular to the mounting plate. Its top end is connected to the bottom surface of the positioning base, and its bottom end is connected to the upper surface of the floating top block. The bottom surface of the floating top block is located above the arc-shaped concave surface.

[0024] Furthermore, the floating top block is cylindrical and located between the two back plates. Its bottom surface facing the blood collection tube is concave to form a funnel-shaped floating block receiving part. The floating block receiving part has a funnel-shaped outer peripheral wall, and its top surface that connects with the top of the blood collection tube is a horizontal plane.

[0025] Furthermore, both back plates are provided with a back plate through hole in the middle, and a laser reflection sensor is provided on one of the back plates and corresponding to its back plate through hole.

[0026] A top block through hole is provided in the middle of the floating top block parallel to the direction of the mounting plate. When the floating block receiving part does not abut against the blood collection tube, the top block through hole is located below the back plate through hole. When the floating block receiving part abuts against the blood collection tube and moves towards the positioning base under force, when the top block through hole rises to the same level as the back plate through hole, the light emitted by the laser reflection sensor passes through the top block through hole and the back plate through hole to detect the clamping height of the blood collection tube.

[0027] The beneficial technical effects of this utility model are:

[0028] Firstly, the pair of gripper assembly plates in this utility model enable the blood collection tube to be clamped in a non-tightly bearing state, and then rotate around its axis under the action of the rotation drive assembly, so that the barcode on the blood collection tube can rotate to the scanning area of ​​the barcode scanner, which greatly improves the efficiency of fast and accurate barcode recognition.

[0029] Secondly, unlike the gripper cylinders or finger cylinders in the prior art, this utility model sets the tension spring so that the two gripper assembly plates maintain the gripping state of the sampling tube when it is in normal state. This allows the utility model to still grip the sampling tube even when the power is lost, thus preventing the sampling tube from falling and being damaged in the event of a sudden power outage.

[0030] Thirdly, this utility model also includes an upper positioning component, which moves up and down by the distance the floating top block is squeezed by the sampling tube, and with the cooperation of the laser reflection sensor, it can accurately position the height at which the sampling tube is clamped. On the one hand, this allows the stepped surface of the outer wall of the blood collection tube to accurately connect with the stepped surface of the bearing, facilitating its subsequent rotation. On the other hand, it allows it to be compatible with clamping sampling tubes of different heights, avoiding improper clamping position from hindering the barcode scanner from scanning the barcode. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the present invention when clamping the sampling tube:

[0032] Figure 2This is a schematic diagram of another angle when the sampling tube is clamped by this utility model;

[0033] Figure 3 This is a bottom view of the present invention when the sampling tube is being clamped;

[0034] Figure 4 This is a schematic diagram of the present invention after removing the first elastic reset member and a gripper assembly plate;

[0035] Figure 5 This is a cross-sectional view of the positioning component of this utility model;

[0036] Figure 6 This is a schematic diagram of the sampling tube.

[0037] Wherein: 000, sampling tube; 001, tube wall stepped surface; 002, barcode scanner; 003, tube rack;

[0038] 100. Mounting plate; 1001. Horizontal plate; 1002. Vertical plate; 101. Gripper slide rail; 102. Slider; 200. Gripper rotation drive motor; 300. Cam block; 301. First cam part; 302. Second cam part; 304. Rolling bearing; 400. Slider fixing plate; 401. Column; 402. First elastic reset component; 500. Back plate; 501. Back plate through hole; 600. Gripper gripper; 601. Gripper block; 602, Rubber-coated bearing; 6011, Arc-shaped concave surface; 6021, Bearing stepped surface; 701, Sampling tube rotary drive cylinder; 702, Rotary drive wheel; 703, Connecting plate; 800, Positioning base; 801, Floating top block; 8011, Floating block receiving part; 8012, Top block through hole; 802, Second elastic reset component; 803, Guide shaft; 8001, Compression spring hole; 8002, Guide hole; 900, Laser reflection sensor. Detailed Implementation

[0039] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0040] like Figures 1-5As shown, this utility model provides an automatic sampling tube rotation device, which includes a mounting plate 100 and two gripper assembly plates slidably connected to the mounting plate 100. Under the action of a first elastic reset member 402, the two gripper assembly plates normally maintain a clamping state on the sampling tube 000. The upper ends of the two gripper assembly plates are connected to gripper drive components that drive them to separate relative to each other. The lower ends of both gripper assembly plates are each provided with a rotation drive component that drives the sampling tube 000 on the two gripper assembly plates to rotate, so that the barcode on the sampling tube 000 rotates to the scanning area of ​​the barcode scanner 002. Wherein, as... Figure 6 As shown, the sampling tube 000 is cylindrical, with the diameter of its upper part being larger than that of its lower part, so that an annular tube wall step surface 001 is formed at the intersection of the outer circumferential wall of its upper part and the outer circumferential wall of its lower part. The barcode is affixed to the outer circumferential wall of the lower part of the sampling tube 000.

[0041] Furthermore, the mounting plate 100 of this utility model can be connected to the drive end of a vertical displacement drive mechanism (not shown), which drives the plate to move up and down in the vertical direction. The vertical displacement drive mechanism is existing technology and can be, for example, a linear slide module or a lead screw linear drive module, etc., which will not be described in detail here. The aforementioned barcode scanner 002 is fixed to one side of this utility model.

[0042] like Figure 2 As shown, in order to reasonably arrange and install the various components, the mounting plate 100 is a flat T-shaped plate, which includes a horizontal plate 1001 extending along its X direction and a vertical plate 1002 perpendicularly connected to the middle of the horizontal plate along the Y direction.

[0043] Two gripper slide rails 101 are provided on the lower surface of the horizontal plate 1001 along the X direction, facing each other and spaced apart. A slider 102 is slidably connected on each gripper slide rail 101. A gripper assembly plate is fixed on each slider 102. The length of the gripper assembly plate extends downward in the direction away from the mounting plate 100. The two gripper assembly plates are arranged opposite each other.

[0044] Each gripper assembly plate includes a slider fixing plate 400, a long rectangular back plate 500, and a gripper gripper 600 connected sequentially from top to bottom. Each gripper gripper 600 includes a gripper block 601 and a pair of rubber-coated bearings 602. Each gripper block 601 has an arc-shaped concave surface 6011 on its front side facing the sampling tube. On the bottom surface of the gripper block 601, at each opposite end of the arc-shaped concave surface 6011, a rubber-coated bearing 602 is connected. Each rubber-coated bearing 602 protrudes from the outer wall of the arc-shaped concave surface 6011, thereby forming a bearing step surface 6021 facing the sampling tube with respect to the outer wall of the arc-shaped concave surface 6011 on the upper surface of the two rubber-coated bearings 602 on each gripper block 601.

[0045] Each slider mounting plate 400 is fixed to a slider 102 at its rear side, and its front end extends along and is parallel to the vertical plate 1002. Accommodation space is provided between the two slider mounting plates 400 and the two gripper slide rails 101. A back plate 500 is vertically connected to the lower surface of the rear side of the slider mounting plate 400, and the bottom surface of the back plate 500 is fixed to the rear side of the gripper block 601. The arc-shaped concave surfaces 601 of the two gripper grippers 600 and the rubber-coated bearings 602 are arranged opposite to each other. When the two gripper assembly plates on the two gripper slide rails 101 approach each other, the two arc-shaped concave surfaces 601 on the two gripper grippers 600 together form an arc-shaped sampling area with an opening. The sampling tube receiving part is composed of four bearing step surfaces 6021 of four rubber-coated bearings 602. When the sampling tube is located therein, the tube wall step surface 001 of the sampling tube 000 is placed on each bearing step surface 6021. The circumferential wall below the tube wall step surface 001 of the sampling tube slides in contact with the outer circumferential surface of each rubber-coated bearing 602. The upper part of the sampling tube 000 is located in the sampling tube receiving part and the arc concave surface 601 is not in contact with the outer circumferential surface of the sampling tube 000. This makes the sampling tube 000 in a non-clamped and tight state when it is clamped and held by the two gripper assembly plates, and it can rotate under the drive of the rotation drive assembly.

[0046] Furthermore, each rubber-coated bearing 602 is fitted with an anti-slip tape on its outer peripheral surface in contact with the outer wall of the sampling tube, so that when the rubber-coated bearing 602 is driven to rotate, it can drive the sampling tube 000 to rotate synchronously by the friction force at the contact point of the sampling tube.

[0047] It should be noted that the barcode sticker on the sampling tube 000 should be placed away from the contact point between the sampling tube and the gripper 600.

[0048] Furthermore, each slider fixing plate 400 has a column 401 on its front and rear sides. A first elastic reset member 402 is connected between the two columns 401 on the front side of the two slider fixing plates 400, and a first elastic reset member 402 is also connected between the two columns on the rear side of the two slider fixing plates 400. The two first elastic reset members 402 are made of the same material and have the same elastic equivalent to ensure that the force exerted by the two first elastic reset members 402 on the two slider fixing plates 400 is the same.

[0049] The first elastic reset component 402 in this utility model is a tension spring.

[0050] In this invention, the two first elastic reset members 402 have two working states: a normal state and a stretched state. When each first elastic reset member 402 is in the normal state, the two first elastic reset members 402, under the combined action of the column 401, have the clamping force required to move the two gripper assembly plates relative to each other. That is, the two gripper assembly plates can maintain the clamping force on the sampling tube 000 when the first elastic reset members 402 are in the normal state. When the gripper driving assembly drives the two gripper assembly plates to move in a direction away from each other, each first elastic reset member 402 is thus subjected to force and is in a stretched state, causing the two gripper assembly plates to lose the clamping force on the sampling tube 000. At this time, the first elastic reset member 402 is in the stretched state.

[0051] The gripper drive assembly that drives the two gripper assembly plates to move away from each other and separates includes a gripper rotary drive motor 200 and a cam block 300 connected to the drive end of the rotary drive motor 200.

[0052] The fixed end of the rotary drive motor 200 is fixed to the upper surface of the vertical plate 1002, and its driving end is perpendicular to the vertical plate 1002 and passes through the vertical plate 1002 downwards before connecting to the cam block 300. The cam block 300 is located between the front ends of the two slider fixed plates 400. The cam block 300 has a symmetrical structure with four equal-length sides that together form a rhombus. The two endpoints corresponding to the long diagonal of the rhombus are the first cam portion 301, and the two endpoints corresponding to the short diagonal of the rhombus are the second cam portion 302. When the two first elastic reset members 402 are in their normal state and the two gripper assembly plates hold the sampling tube 000, the straight-line distance between the two first cam portions 301, that is, the length of the long diagonal of the cam block 300, is greater than the distance between the two slider fixing plates 400; the straight-line distance between the two second cam portions 302, that is, the length of the short diagonal of the cam block 300, is less than the distance between the two slider fixing plates 400.

[0053] The drive end of the rotary drive motor 200 is connected to the center point of the cam block 300, which drives the cam block 300 to rotate 360° around its axis.

[0054] Preferably, the junctions of adjacent sides in the cam block 300 have a uniformly transitioning arc surface.

[0055] Preferably, each of the first cam portions 301 of the cam block 300 has a hollow portion between its upper and lower surfaces, and a rolling bearing 304 is rotatably connected to each hollow portion by a screw. The two rolling bearings 304 are on the same horizontal plane as the two second cam portions 302.

[0056] When the two first elastic reset members 402 are in their normal state, the two second cam portions 302 of the cam block 300 are respectively positioned opposite to the inner side of the two slider fixing plates 400, and the two second cam portions 302 and the two slider fixing plates 400 are located on the same horizontal plane.

[0057] Preferably, each second cam portion 302 does not contact its corresponding slider fixing plate 400, and a gap is left between them, so as not to limit the two gripper assembly plates. This gives the two gripper assembly plates a certain adjustment capability, so that they can clamp sampling tubes 000 of different diameters under the action of the first elastic reset member 402.

[0058] When the sampling tube 000 is to be inserted and clamped, the rotary drive motor 200 drives the cam block 300 to rotate. When the two second cam parts 302 rotate away from the relative position with the inner side of the two slider fixing blocks 400, the two first cam parts 301 rotate to the position opposite to the inner side of the two slider fixing plates 400, and the two rolling bearings 304 on the two first cam parts 301 respectively abut against the inner side wall of the two slider fixing plates 400, the two slider fixing plates 400 are squeezed by the rolling bearings 304 and move away from each other along their corresponding gripper slide rails 101. At the same time, the two first elastic reset members 402 are synchronously stretched. The two first elastic reset members 402 are in their stretched state, and the arc concave surface 601 and the rubber-coated bearing 602 in the two gripper assembly plates are also moved away from each other, thus allowing the sampling tube 000 to be inserted.

[0059] It should be noted that when the rotary drive motor 200 drives the rolling bearing 304 to abut against the inner wall of the slider fixing plate 400 to separate the two gripper assembly plates, the two rolling bearings 304 will not slide relative to the inner wall of the slider fixing plate 400 due to the force of the rotary drive motor 200. They have an appropriate holding force. The design of the rolling bearings 304 is intended to make the process of the rotary drive motor 200 driving the cam block 300 to rotate to control the two gripper assembly plates from the open state to the close clamping state more smoothly.

[0060] The rotary drive motor 200 drives the cam block 300 to rotate, which in turn drives the two rolling bearings 304 to rotate and move away from the inner wall of the two slider fixing plates 400. When the two first cam parts 301 are reset and rotated to the position opposite to the two slider fixing plates 400, the external force acting on the two first elastic reset members 402 disappears. The deformation rebound force of the two first elastic reset members 402 pulls the two gripper assembly plates to move towards each other along their corresponding gripper slide rails 101. When the two first elastic reset members 402 are reset to their normal state, the sampling tube receiving part formed by the four bearing step surfaces 6021 and the sampling tube limiting part formed by the two arc concave surfaces 601 jointly clamp and hold the sampling tube 000.

[0061] When the sampling tube 000 is to be released, the rotary drive motor 200 drives the two rolling bearings 304 of the cam block 300 to abut against the inner sidewalls of the two slider fixing plates 400 respectively, and the two arc-shaped concave surfaces 601 move away from each other, thereby releasing the sampling tube 000.

[0062] The rotary drive assembly that drives the sampling tube 000 located in the sampling tube receiving part and the sampling tube limiting part to rotate includes a sampling tube rotary drive cylinder 701 and a rotary drive wheel 702 connected to the drive end of the sampling tube rotary drive cylinder 701.

[0063] The connecting plate 703 is fixed to one of the gripper blocks 601. The fixed end of the sampling tube rotation drive cylinder 701 is connected to the connecting plate 703. Its driving end passes through the connecting plate 703 downward and is connected to the rotation drive wheel 702. The rotation drive wheel 702 is connected to a rubber-coated bearing 602 on one side of the gripper block 601. When the sampling tube rotation drive cylinder 701 drives the rotation drive wheel 702 to rotate around its axis, the rotation drive wheel 702 simultaneously drives the rubber-coated bearing 602 connected to it to rotate. The rubber-coated bearing 602 thereby drives the sampling tube 000 connected to it to rotate within the sampling tube receiving part and the sampling tube limiting part, so that the barcode on the sampling tube rotates to be located in the scanning area of ​​the barcode scanner 002.

[0064] Furthermore, the present invention also includes an upper positioning component for detecting and positioning the height of the blood collection tube clamp, the upper positioning component including a positioning base 800, a floating top block 801, a second elastic reset member 802, and a guide shaft 803.

[0065] The positioning base 800 is a rectangular block, which is vertically fixed to the lower surface of the horizontal plate 1001 and located between the two gripper slide rails 101, and above the bearing step surface 6021 and the arc-shaped concave surface 601. The positioning base 800 has a spring hole 8001 at its center for installing the second elastic reset member 802. The length of the spring hole 8001 extends perpendicular to the horizontal plate 1001. To fix the second elastic reset member 802, the spring hole 8001 is a through-hole structure with a smaller upper diameter and a larger lower diameter, thus forming a lower abutment edge at the junction of its upper and lower parts. When the second elastic reset member 802 is placed in the spring hole 8001, the upper end of the second elastic reset member 802 is connected to the lower abutment edge. To ensure operational stability, the upper end of the second elastic reset member 802 is fixed to the lower abutment edge. The positioning base 800 has three guide holes 8002 arranged in a triangular array around the compression spring hole 8001. The guide holes 8002 are parallel to the compression spring hole 8001. Each guide hole 8002 has a larger upper diameter and a smaller lower diameter, so that an upper abutment edge is formed at the junction of its upper and lower parts. The upper part of each guide hole 8002 has an appropriate height from the bottom surface of the horizontal plate 1001 to leave space for the guide shaft to slide. A guide shaft is slidably connected in each guide hole 8002 along a vertical direction perpendicular to the mounting plate. Guide shaft 803; guide shaft 803 is a T-shaped column, that is, its upper end has an anti-detachment part. The guide shaft 803 passes through the guide hole 8002 from top to bottom. The anti-detachment part of the guide shaft 803 in each guide hole 8002 is placed in the upper part of the guide hole 8002. Its lower rod part passes through the guide hole 8002 and is fixed to the upper surface of the floating top block 801. The bottom end of the second elastic reset member 802 is also fixed to the upper surface of the floating top block 801, and the floating top block 801 is located between the two back plates 500.

[0066] In this utility model, the second elastic reset component 802 is a compression spring.

[0067] The floating top block 801 is a cylinder with its bottom surface facing the sampling tube recessed to form a funnel-shaped floating block receiving part 8011. The floating block receiving part 8011 has a funnel-shaped outer peripheral surface, and its top surface facing the mounting plate is a horizontal surface for contacting the sampling tube 000. The floating block receiving part 8011 is located directly above the sampling tube receiving part and the sampling tube limiting part. When the floating block receiving part 8011 is not in contact with the sampling tube 000, the anti-detachment part of the guide shaft 803 abuts against the upper abutment edge of the guide hole 8002.

[0068] In addition, each of the two back plates 500 is provided with a back plate through hole 501 in the middle, and the two back plate through holes 501 are located on the same horizontal plane; a laser reflection sensor 900 is provided on the outer wall of one of the back plates 500 away from the floating top block 801, and the light emission port of the laser reflection sensor is coaxially arranged with the back plate through hole 501.

[0069] Furthermore, the floating top block 801 has a top block through hole 8012 in the middle of its horizontal direction parallel to the mounting plate 100, and when the floating top block 801 is not in contact with the sampling tube 000, the top block through hole 8012 is located below the back plate through hole 501.

[0070] When the vertical displacement drive mechanism (not shown) moves the present invention above the sampling tube 000, the vertical displacement drive mechanism drives the present invention to continue moving downward. When the floating block receiving part 8011 of the floating top block 801 abuts against the blood collection tube 000, the floating top block 801 is subjected to an upward squeezing force and slides upward toward the positioning base 800. At the same time, the top block through hole 8012 also rises synchronously. When the top block through hole 8012 rises to the same horizontal plane as the back plate through hole 501, The two back plate through holes 501 and the top block through hole 8012 are connected, and the detection light emitted by the laser reflection sensor 900 passes through it to detect the height of the sampling tube 000 located between the floating block receiving part 8011 and the bearing step surface 6021. At the same time, the second elastic reset member 802 is also compressed and deformed. After the sampling tube completes the rotation and scanning process and leaves the floating block receiving part 8011, the deformation rebound force of the second elastic reset member 802 drives the floating top block 801 to reset.

[0071] The upper positioning component can accurately position the sampling tube 000 at the height between the floating block receiving part 8011 and the bearing step surface 6021, so that the tube wall step surface 001 of the sampling tube 000 is exactly on the bearing step surface 6021, which facilitates its subsequent rotation. The flared opening of the floating block receiving part 8011 is also conducive to the introduction of the blood collection tube. On the other hand, it can be compatible with the clamping of sampling tubes of different heights and sizes to prevent improper clamping position from hindering the barcode scanner from scanning.

[0072] The vertical displacement drive mechanism, the gripper rotation drive motor 200 of this utility model, the sampling tube rotation drive cylinder 701, and the laser reflection sensor 900 are all electrically connected to the controller (not shown).

[0073] The operation process of this utility model is as follows:

[0074] The sampling tube 000 containing the barcode to be scanned is placed inside the tube rack 003, and the barcode scanner 002 is located on one side of the tube rack 003. The tube rack 003 has an opening on the side facing the barcode scanner 002.

[0075] The vertical displacement drive mechanism moves the present invention above the sampling tube 000. The gripper rotation drive motor 200 drives the cam block 300 to rotate, causing the two rolling bearings 304 on the two first cam parts 301 to abut against the inner walls of the two slider fixing plates 400, thus separating the two gripper assembly plates. The vertical displacement drive mechanism continues to drive the present invention to descend, and the top of the sampling tube 000 abuts against the floating block receiving part 8011. The present invention continues to descend towards the sampling tube until the floating block receiving part 8011 is squeezed by the sampling tube, causing the floating top block 801 to move upward. When the top block through hole 8012 rises to the same horizontal plane as the back plate through hole 501 and they are connected, the laser reflection sensor 900 detects that the blood collection tube has risen to the correct position. When the vertical displacement drive mechanism stops descending, the gripper rotation drive motor 200 drives the cam block 300 to rotate again, causing the two rolling bearings 304 to rotate away from the inner wall of the two slider fixing plates 400. The two second cam parts 302 rotate between the two slider fixing plates 400, and the first elastic reset member 402 drives the two gripper assembly plates to reset and clamp the sampling tube 000. The sampling tube rotation drive cylinder 701 is started to drive the rotation drive wheel 702 to rotate. The rotation drive wheel 702 simultaneously drives the rubber-coated bearing 602 connected to it to rotate. The rubber-coated bearing 602 drives the sampling tube 000 connected to it to rotate within the sampling tube receiving part and the sampling tube limiting part, so that the barcode on the sampling tube rotates to be located in the scanning area of ​​the barcode scanner 002 for scanning.

[0076] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An automatic sampling tube rotating device, characterized in that, Includes a mounting plate (100), on the bottom surface of which two gripper assembly plates are slidably connected, and each gripper assembly plate has a bearing step surface (6021) for supporting blood collection tubes at its lower end; A first elastic reset member (402) is connected between the two gripper assembly plates, and the first elastic reset member (402) maintains the normal clamping state of the two gripper assembly plates on the sampling tube. The gripper drive assembly has its fixed end connected to the mounting plate (100), and its drive end acts on the two gripper assembly plates respectively, which drives the two gripper assembly plates to move in a direction away from each other. At least one gripper assembly plate has a rotary drive assembly on its lower end. The drive end of the rotary drive assembly drives the blood collection tubes on the bearing step surface (6021) of the two gripper assembly plates to rotate around its axis.

2. The automatic sampling tube rotating device according to claim 1, characterized in that, Each of the gripper assembly plates includes a slider fixing plate (400), a back plate (500), and a gripper gripper (600) that are fixedly connected from top to bottom; Each slider fixing plate (400) is slidably connected to the mounting plate (100), and each of its front and rear sides is provided with a column (401). The first elastic reset member (402) is connected to the column (401) on the same side of the two slider fixing plates (400); the bearing step surface (6021) is provided on the gripper (600).

3. The automatic sampling tube rotating device according to claim 2, characterized in that, Each gripper (600) has an arc-shaped concave surface (6011) on the side facing the blood collection tube. Each gripper (600) has a rubber-coated bearing (602) rotatably connected to its bottom surface. The upper surface of each rubber-coated bearing (602) forms a bearing step surface (6021) relative to the outer wall of its corresponding arc-shaped concave surface (6011). When the gripper assembly plate is in a clamping state on the sampling tube, the two arc-shaped concave surfaces (6011) surround and form the limiting part of the sampling tube, which does not contact the outer wall of the sampling tube; the bearing step surface (6021) on the two grippers (600) together form the receiving part of the blood collection tube.

4. The automatic sampling tube rotating device according to claim 3, characterized in that, Each of the rubber-coated bearings (602) is fitted with an anti-slip rubber strip on the outer peripheral surface that contacts the blood collection tube.

5. The automatic sampling tube rotating device according to claim 2, characterized in that, The gripper drive assembly includes a gripper rotation drive motor (200) and a cam block (300); the drive end of the gripper rotation drive motor (200) passes vertically downward through the mounting plate and is connected to the cam block (300); the cam block (300) is located between two slider fixing plates (400) and is located on the same horizontal plane. The cam block (300) is rhomboid, with the two ends of its long diagonal corresponding to the first cam part (301) and the two ends of its short diagonal corresponding to the second cam part (302). When the gripper assembly plate is in the gripping state of the sampling tube, the two second cam parts (302) are adjacent to the inner side of the two slider fixing plates (400) respectively, and the distance between the two first cam parts (301) is greater than the distance between the two slider fixing plates (400), and the distance between the two second cam parts (302) is less than the distance between the two slider fixing plates (400).

6. The automatic sampling tube rotating device according to claim 5, characterized in that, Each of the first cam portions (301) has a hollow portion between its upper and lower surfaces, and a rolling bearing (304) is rotatably connected within each hollow portion.

7. The automatic sampling tube rotating device according to claim 4, characterized in that, The rotary drive assembly includes a sampling tube rotary drive cylinder (701) and a rotary drive wheel (702) connected to its drive end; The sampling tube rotation drive cylinder (701) is mounted on the gripper (600), and the rotation drive wheel (702) is connected to the rubber-coated bearing (602). The sampling tube rotation drive cylinder (701) drives the rotation drive wheel (702) to rotate, thereby driving the rubber-coated bearing (602) to rotate synchronously.

8. The automatic sampling tube rotating device according to claim 4, characterized in that, On the bottom surface of the mounting plate, located between the two gripper assembly plates, there is also an upper positioning component for positioning the clamping height of the blood collection tube. The upper positioning component includes: Positioning base (800), which is fixed to the bottom surface of the mounting plate; A floating top block (801) is slidably connected to the lower part of the positioning base (800) in the vertical direction via a guide shaft (803); The second elastic reset member (802) is arranged in a vertical direction perpendicular to the mounting plate (100), with its top end connected to the bottom surface of the positioning base (800) and its bottom end connected to the upper surface of the floating top block (801), the bottom surface of which is located above the arc-shaped concave surface (6011).

9. The automatic sampling tube rotating device according to claim 8, characterized in that, The floating top block (801) is cylindrical and located between the two back plates (500). Its bottom surface facing the blood collection tube is concave to form a funnel-shaped floating block receiving part (8011). The floating block receiving part (8011) has a funnel-shaped outer peripheral wall, and its top surface that connects with the top of the blood collection tube is a horizontal surface.

10. The automatic sampling tube rotating device according to claim 9, characterized in that, Both back plates (500) are provided with a back plate through hole (501) in the middle, and a laser reflection sensor (900) is provided on one of the back plates (500) and corresponding to its back plate through hole (501); A top block through hole (8012) is provided in the middle of the floating top block (801) in the direction parallel to the mounting plate (100). When the floating block receiving part (8011) does not abut against the blood collection tube, the top block through hole (8012) is located below the back plate through hole (501). When the floating block receiving part (8011) abuts against the blood collection tube and is forced to move towards the positioning base (800), when the top block through hole (8012) rises to the same level as the back plate through hole (501), the light emitted by the laser reflection sensor (900) passes through the top block through hole (8012) and the back plate through hole (501) to detect the clamping height of the blood collection tube.

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