Test tube rack propulsion mechanism and in vitro diagnostic analyzer

Abstract

The cam is provided with a plurality of movable members, each of which is provided with a plurality of movable members, and the movable members are provided with a plurality of movable members. The cam is provided with a plurality of movable members, and the movable members are provided with a plurality of movable members.

Description

Technical Field

[0001] The present invention relates to the technical field of in vitro diagnostic instrument structures, and in particular to a test tube rack propulsion mechanism and an in vitro diagnostic analyzer. Background Art

[0002] Existing in vitro diagnostic instruments all have a test tube rack propulsion mechanism to facilitate automatic feeding of the test tube rack. Existing test tube rack propulsion methods are generally belt dragging or cylinder claw pulling. These methods are generally cumbersome in structure, occupy a large space, and are not very flexible in use. In addition, the test tube rack is forced to advance, which will damage the test tube rack. Current medical instruments have a compact and sophisticated structure and cannot meet the fundamental demand for space saving. Summary of the Invention

[0003] In order to solve the problems existing in the prior art, the present invention provides a test tube rack propulsion mechanism and an in vitro diagnostic analyzer, including a guide rail, on which an active push plate and a driven push plate are provided. The active push plate drives the driven push plate to slide on the guide rail through a driving mechanism. Rotatable push hands are installed at the left and right ends of the driven push plate, and a linkage mechanism for driving the push hands to rotate is provided between the active push plate and the push hands. The rotation of the two push hands forms a state of pushing or not blocking the test tube rack.

[0004] Furthermore, the driving mechanism includes a small push plate vertically mounted on the driven push plate, and the active push plate is provided with a buffer traction groove used in conjunction with the small push plate. When the small push plate is at the rearmost end of the buffer traction groove, the small push plate is driven by the linkage mechanism to rotate to a horizontal pushing state. When the small push plate is at the frontmost end of the buffer traction groove, the small push plate is driven by the linkage mechanism to rotate to a vertical unblocked state.

[0005] Furthermore, a mounting base is provided below the guide rail, and a driving mechanism for driving the active push plate is installed on one side of the mounting base.

[0006] Furthermore, an active slider is installed below the active push plate and the active slider is slidably connected to the guide rail, and a driven slider is installed below the driven push plate and the driven slider is slidably connected to the guide rail.

[0007] Furthermore, the driving mechanism includes two driving synchronous wheels installed on the side walls of the mounting base, a driving conveyor belt is sleeved between the two driving synchronous wheels, the lower part of the active slider is fixedly connected to the driving conveyor belt, the driving conveyor belt is in contact and drive connection with the driving wheel, and the driving wheel is fixedly connected to the rotating shaft of the motor.

[0008] Furthermore, tensioning wheels are provided on both sides of the driving wheel, the two tensioning wheels are in contact with the driving conveyor belt respectively, and the two tensioning wheels are not in the same straight line as the driving wheel.

[0009] Furthermore, the push handle is installed on a rotating seat, and the rotating seat is rotatably connected to the driven push plate through a rotating shaft. The linkage mechanism includes a connecting plate, which is rotatably connected to the driven push plate through a column shaft, and one end of the connecting plate is rotatably connected to one end of the rotating seat, and the other end is rotatably connected to the front side end of the active push plate.

[0010] Furthermore, a damping mechanism is provided on the side wall of the mounting base located on the other side of the driving mechanism along the guide rail direction, and the damping mechanism includes two manual synchronous wheels, a manual synchronous belt is provided between the two manual synchronous wheels, and the driven slider is fixedly connected to the manual synchronous belt.

[0011] Furthermore, a detection optical coupler is provided on one side of the guide rail, and an optical coupler baffle used in conjunction with the detection optical coupler is also provided on one side of the active push plate.

[0012] The beneficial effects of the present invention are as follows: the present invention has a simple structure, an ingenious design, takes up little space, is flexible in use, does not rigidly propel the test tube rack, reduces wear on the test tube rack, and can realize single unidirectional motion propulsion of continuous test tube racks; when the propulsion mechanism moves in the reverse direction, the linkage between the active push plate and the driven push plate flips the push handle, and the distance between the two flipped push handles is greater than the width of the test tube rack, thereby not causing obstruction or interference to the test tube rack that has been sent into the sample introduction area or has not entered the sample introduction area. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a side schematic diagram of the present invention;

[0014] Figure 2 It is a rear sectional view of the present invention;

[0015] Figure 3 A top view of the present invention;

[0016] Figure 4 It is a side view of the present invention.

[0017] Component numbers in the accompanying drawings:

[0018] Install the base 1, guide rail 2, active slider 3, active push plate 4, driven slider 5, driven push plate 6, rotating seat 7, push handle 8, connecting plate 9, column shaft 10, buffer traction groove 11, small push plate 12, motor 13, drive conveyor belt 14, drive synchronous wheel 15, detection optical coupler 16, manual synchronous wheel 17, manual synchronous belt 18, and optical coupler baffle 19. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0020] As Example 1 of the present invention, see Figure 1-4 An embodiment of the present invention provides a test tube rack propulsion mechanism, comprising a guide rail 2, on which are disposed an active push plate 4 and a passive push plate 6. A driving mechanism is disposed between the active push plate 4 and the passive push plate 6. Rotatable push handles 8 are mounted on the left and right ends of the passive push plate 6, and a linkage mechanism is disposed between the active push plate 4 and the push handle 8 for driving the push handle 8 to flip. A mounting base 1 is disposed below the guide rail 2, and a drive mechanism for driving the active push plate 4 is mounted on one side of the mounting base 1. An active slider 3 is mounted below the active push plate 4 and is slidably connected to the guide rail 2. A passive slider 5 is mounted below the passive push plate 6 and is slidably connected to the guide rail 2. The drive mechanism includes two drive synchronous wheels 15 mounted on the side walls of the mounting base 1. A drive conveyor belt 14 is sleeved between the two drive synchronous wheels 15. The active slider 3 is fixedly connected to the drive conveyor belt 14 below, and the drive conveyor belt 14 is in contact and driving connection with a drive wheel 20, which is fixedly connected to the rotating shaft of a motor 13. Tensioning wheels 21 are provided on both sides of the driving wheel 20. The two tensioning wheels 21 are in contact with the driving conveyor belt 14 respectively and the two tensioning wheels 21 are not in the same straight line with the driving wheel 20. The driving mechanism includes a small push plate 12 vertically mounted on the driven push plate 6, and a buffer traction groove 11 is provided on the active push plate 4 for use with the small push plate 12. A rotating seat 7 is provided below the push handle 8, and the rotating seat 7 is rotatably connected to the driven push plate 6 through a rotating shaft. The linkage mechanism includes a connecting plate 9, which is rotatably connected to the driven push plate 6 through a column shaft 10, and one end of the connecting plate 9 is rotatably connected to one end of the rotating seat 7, and the other end is rotatably connected to the front side end of the active push plate 4. A detection optical coupler 16 is provided on one side of the guide rail 2, and an optical coupler baffle 19 for use with the detection optical coupler 16 is also provided on one side of the active push plate 4.

[0021] Two manual synchronous wheels 17 are provided on the side wall of the mounting base 1 on the other side of the driving mechanism along the guide rail direction. A manual synchronous belt 18 is provided between the two manual synchronous wheels 17. The driven slider 5 is fixedly connected to the manual synchronous belt 18, which can play a damping role on the driven push plate 6 when the mechanism slides on the guide rail 2. When the propulsion mechanism fails or needs maintenance, the driven push plate 6 can also be moved by manually turning the manual synchronous belt 18.

[0022] Working principle of the present invention: When the test tube rack propulsion mechanism propels the test tube rack, the motor 13 drives the active push plate 4 on the driving synchronous wheel 15 to move forward until the small push plate 12 contacts the rear end of the buffer traction groove 11. At this time, the front ends of the active push plate 4 respectively drive one end of the connecting plate 9 to rotate forward, and the other end drives the inner end of the rotating seat 7 to rotate backward, causing the pusher 8 to be placed horizontally. The distance between the two pushers 8 after being placed horizontally is less than the width of the test tube rack. At the same time, the active push plate 4 drives the driven push plate 6 forward through the small push plate 12, so that the pusher 8 pushes the test tube rack into the sample injection area. When the optical coupler baffle 19 on the side of the active push plate 4 enters the detection optical coupler 16, it means that the propulsion mechanism has pushed the reagent When the tube rack is pushed into the specified position, the detection optical coupler 16 feeds back the detected signal to the controller, and the controller controls the motor to reverse, thereby driving the active push plate 4 to move backward until the front end of the buffer traction groove 11 contacts the small push plate 12. At this time, the front ends of the active push plate 4 drive one end of the connecting plate 9 to rotate backward, and the other end drives the inner end of the rotating seat 7 to rotate forward, causing the pusher 8 to be placed vertically. The distance between the two pushers 8 after being placed vertically is greater than the width of the test tube rack, thereby avoiding obstruction and interference between the pusher 8 and the subsequent test tube rack during the retraction process of the driven push plate 6. After the pusher 8 is placed vertically, the active push plate 4 will drive the driven push plate 6 to move to the initial position and push the next test tube rack.

[0023] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and exemplary embodiments. They can be applied to a variety of fields suitable for the present invention. Further modifications will be readily apparent to those skilled in the art. Therefore, the present invention is not limited to the specific details and illustrations shown and described herein without departing from the general concept defined by the claims and their equivalents.

Claims

1. A test tube rack propulsion mechanism, characterized in that: The invention comprises a guide rail (2), wherein an active push plate (4) and a driven push plate (6) are provided on the guide rail (2), wherein the active push plate (4) drives the driven push plate (6) to slide on the guide rail (2) through a driving mechanism, and rotatable push hands (8) are installed at the left and right ends of the driven push plate (6), and a linkage mechanism for driving the push hands (8) to rotate is provided between the active push plate (4) and the push hands (8), and a state of pushing or not blocking the test tube rack is formed by rotating the two push hands (8); the driving mechanism comprises a small push plate (12) vertically installed on the driven push plate (6), and a buffer traction groove (11) used in conjunction with the small push plate (12) is provided on the active push plate (4), and when the small push plate (12) is at the rear end of the buffer traction groove (11), the linkage mechanism drives the small push plate (12) to rotate to a horizontal pushing state, and the small push plate (12) is at the front end of the buffer traction groove (11). When the guide rail (2) is in the vertical position, the small push plate (12) is driven to rotate to a vertical unblocked state by the linkage mechanism; a mounting base (1) is provided below the guide rail (2), and a driving mechanism for driving the active push plate (4) is installed on one side of the mounting base (1); an active slider (3) is installed below the active push plate (4), and the active slider (3) is slidably connected to the guide rail (2); a driven slider (5) is installed below the driven push plate (6), and the driven slider (5) is slidably connected to the guide rail (2); the push hand (8) is installed on the rotating seat (7), and the rotating seat (7) is rotatably connected to the driven push plate (6) through a rotating shaft, and the linkage mechanism includes a connecting plate (9), and the connecting plate (9) is rotatably connected to the driven push plate (6) through a column shaft (10), and one end of the connecting plate (9) is rotatably connected to one end of the rotating seat (7), and the other end is rotatably connected to the front side end of the active push plate (4).

2. A test tube rack propulsion mechanism according to claim 1, characterized in that: The driving mechanism comprises two driving synchronous wheels (15) mounted on the side walls of the mounting base (1), a driving conveyor belt (14) is sleeved between the two driving synchronous wheels (15), the lower portion of the active slider (3) is fixedly connected to the driving conveyor belt (14), the driving conveyor belt (14) is in contact and driving connection with the driving wheel (20), and the driving wheel (20) is fixedly connected to the rotating shaft of the motor (13).

3. A test tube rack propulsion mechanism according to claim 2, characterized in that: Tension wheels (21) are provided on both sides of the driving wheel (20), the two tension wheels (21) are in contact with the driving conveyor belt (14) respectively, and the two tension wheels (21) are not on the same straight line as the driving wheel (20).

4. A test tube rack propulsion mechanism according to claim 1, characterized in that: A damping mechanism is provided on the side wall of the mounting base (1) located on the other side of the driving mechanism along the guide rail direction. The damping mechanism includes two manual synchronous wheels (17). A manual synchronous belt (18) is provided between the two manual synchronous wheels (17). The driven slider (5) is fixedly connected to the manual synchronous belt (18).

5. The test tube rack propulsion mechanism according to claim 1, characterized in that: A detection optical coupler (16) is provided on one side of the guide rail (2), and an optical coupler baffle (19) used in conjunction with the detection optical coupler (16) is also provided on one side of the active push plate (4).

6. An in vitro diagnostic analyzer, characterized in that The test tube rack comprises the test tube rack propulsion mechanism according to any one of claims 1 to 5.

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