A magnetic separation reaction cup placing device

Abstract

The present invention relates to the technical field of medical devices, and discloses a magnetic separation reaction cup placement device, comprising an incubation tray, a reaction cup, a magnet assembly and a manipulator assembly, wherein a plurality of evenly distributed placement grooves are arranged around the edge of the upper surface of the incubation tray, the magnet assembly is arranged inside the incubation tray and located on one side of the plurality of placement grooves, the manipulator assembly clamps the top of the reaction cup, and the reaction cup is located inside the placement groove on the surface of the incubation tray. The magnetic separation reaction cup placement device has a simple structure, completes the movement of the magnet through mechanical action, realizes close contact between the magnet and the reaction cup, reduces costs, and has high reliability.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a magnetic separation reaction cup placing device. Background Art

[0002] The magnetic separation component in the existing chemiluminescence analyzer is an important component structure, in which the contact distance between the magnet and the reaction cup is critical. If the gap between the magnet and the reaction cup is large, it is easy to cause the magnetic beads to be washed away during magnetic separation and cleaning, and the detection results cannot be accurate. Therefore, it is very important to control the consistency of the contact distance between the magnet and the reaction cup. To this end, the present invention proposes a magnetic separation reaction cup placement device. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the shortcomings of the prior art, the present invention provides a magnetic separation reaction cup placing device with a simple structure, which completes the movement of the magnet through mechanical action, achieves close contact between the magnet and the reaction cup, reduces costs, and has high reliability. It solves the problem that in the prior art, the close contact between the magnet and the reaction cup is achieved by driving the magnet assembly to move through a motor and a linear guide rail, and this method has the advantages of complex structure and high cost.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a magnetic separation reaction cup placement device, comprising an incubation tray, a reaction cup, a magnet assembly and a manipulator assembly, wherein a plurality of evenly distributed placement grooves are arranged around the edge of the upper surface of the incubation tray, the magnet assembly is arranged inside the incubation tray and located on one side of the plurality of placement grooves, the manipulator assembly clamps the top of the reaction cup, and the reaction cup is located inside the placement groove on the surface of the incubation tray.

[0006] Preferably, the manipulator assembly includes a shell, a metal head, a metal push rod, a metal push cup seat and a gripping finger. A linear bearing is fastened to the bottom of the shell by a first screw, a gripping finger mounting seat is fixedly provided on the outer wall of the linear bearing, the gripping fingers are fastened to both sides of the gripping finger mounting seat by a second screw, the two gripping fingers are symmetrically distributed, the reaction cup is located between the two gripping fingers, the metal push rod is vertically located inside the linear bearing, the upper end of the metal push rod extends to the inside of the shell, the inner side wall of the shell is fastened with a spring limit block by a third screw, a spring push rod is vertically provided inside the spring limit block, and the rod wall of the spring push rod is fixed by a sliding The hole is slidably arranged inside the spring limit block, the rod wall of the spring push rod and the part located above the spring limit block are fixedly provided with a first opening retaining ring, the rod wall of the spring push rod and the part located inside the spring limit block are movably sleeved with a first spring, the upper end of the first spring is fixedly connected to the top inner wall of the spring limit block, the lower end of the first spring is fixedly connected to the rod wall of the spring push rod, the metal top head is fastened to the upper end of the metal push rod by a fourth screw, the lower end of the spring push rod is abutted against the upper end of the metal top head, the lower end of the metal push rod extends to the interior of the two grasping fingers and is fixedly connected to the metal push cup seat by a fifth screw, and the metal push cup seat is in contact with the top of the reaction cup.

[0007] Preferably, the magnet assembly includes a magnet bushing, a second spring, a magnet mounting seat and a magnet, the side wall of the incubation tray is provided with a fixing hole connected to the placement groove, the magnet bushing is transversely fixed inside the fixing hole by a sixth screw, the magnet mounting seat is movably arranged inside the magnet bushing, the second spring is movably sleeved on the outer wall of the magnet mounting seat, the two ends of the second spring are respectively fixedly connected to the inner side wall of the magnet bushing and the side wall of the magnet mounting seat, the magnet is fixedly arranged on the left side wall of the magnet mounting seat, the right end of the magnet mounting seat extends to the outside of the magnet bushing and a second opening retaining ring is fixedly arranged on the outer wall.

[0008] Preferably, the angle between the side of the reaction cup and the vertical direction is 0.3°, and the bottom of the reaction cup is set with a guide fillet.

[0009] Preferably, the first spring and the second spring are both in a compressed state.

[0010] Preferably, the reaction cup is arranged to be subjected to an axial external force.

[0011] Compared with the prior art, the present invention provides a magnetic separation reaction cup placing device, which has the following beneficial effects:

[0012] 1. The magnetic separation reaction cup placing device is provided with a spring push rod, a first opening retaining ring, a first spring, a third screw, a spring limit block, a fourth screw, a metal top head, a metal push rod, a grasping finger mounting seat, a linear bearing, a first screw, a second screw, a grasping finger, a metal push cup seat and a fifth screw. The grasping finger can tightly grasp the reaction cup. At this time, the top of the reaction cup is set against the metal push cup seat, and the metal push cup seat will squeeze the metal push rod upward, so that the upper end of the metal push rod pushes the spring push rod upward through the metal top head to move, so that the spring push rod and the spring limit block mutually squeeze the first spring. When the grasping finger releases the reaction cup, the squeezed first spring exerts a relatively downward force on the spring push rod, so that the metal push cup seat can push the reaction cup tightly inside the placement groove on the surface of the incubation tray.

[0013] 2. The magnetic separation reaction cup placing device is provided with a sixth screw, a magnet bushing, a second opening retaining ring, a second spring, a magnet mounting seat and a magnet. When the reaction cup is pushed tightly inside the placing groove, the outside of the reaction cup will squeeze the magnet, so that the magnet will push the magnet mounting seat to slide inside the magnet bushing and squeeze the second spring, thereby being able to apply a relative external force to the magnet and making close contact with the outer wall of the reaction cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a magnetic separation reaction cup placing device proposed by the present invention;

[0015] Figure 2 It is a structural schematic diagram of the robot assembly in the present invention;

[0016] Figure 3 for Figure 2 The structure enlarged diagram of the local A part;

[0017] Figure 4 for Figure 1 A schematic diagram of a top view structure;

[0018] Figure 5 It is a schematic diagram of the angle structure of the robot assembly and the reaction cup in the present invention.

[0019] In the figure: 1 spring push rod, 2 first open retaining ring, 3 first spring, 4 third screw, 5 spring limit block, 6 fourth screw, 7 metal head, 8 metal push rod, 9 grasping finger mounting seat, 10 linear bearing, 11 first screw, 12 second screw, 13 grasping finger, 14 metal push cup seat, 15 fifth screw, 16 reaction cup, 17 sixth screw, 18 magnet bushing, 19 second open retaining ring, 20 second spring, 21 magnet mounting seat, 22 magnet, 23 incubation tray, 24 shell. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-5 A magnetic separation reaction cup placement device includes an incubation tray 23, a reaction cup 16, a magnet assembly and a manipulator assembly. A plurality of evenly distributed placement grooves are arranged around the edge of the upper surface of the incubation tray 23. The magnet assembly is arranged inside the incubation tray 23 and located on one side of the plurality of placement grooves. The manipulator assembly clamps the top of the reaction cup 16, and the reaction cup 16 is located inside the placement groove on the surface of the incubation tray 23.

[0022] The manipulator assembly includes a shell 24, a metal top 7, a metal push rod 8, a metal push cup seat 14 and a grab finger 13. A linear bearing 10 is fastened to the bottom of the shell 24 by a first screw 11. A grab finger mounting seat 9 is fixedly provided on the outer wall of the linear bearing 10. The grab fingers 13 are fastened to both sides of the grab finger mounting seat 9 by a second screw 12. The two grab fingers 13 are symmetrically distributed. The reaction cup 16 is located between the two grab fingers 13. The metal push rod 8 is vertically located inside the linear bearing 10. The upper end of the metal push rod 8 extends to the inside of the shell 24. The inner wall of the shell 24 is fastened with a spring limit block 5 by a third screw 4. A spring push rod 1 is vertically provided inside the spring limit block 5. The rod wall of the spring push rod 1 is connected to the inner wall of the shell 24 by a third screw 4. The sliding hole is slidably arranged inside the spring limit block 5, and the rod wall of the spring push rod 1 and the part located above the spring limit block 5 are fixedly provided with a first opening retaining ring 2, and the rod wall of the spring push rod 1 and the part located inside the spring limit block 5 are movably sleeved with a first spring 3, the upper end of the first spring 3 is fixedly connected to the top inner wall of the spring limit block 5, and the lower end of the first spring 3 is fixedly connected to the rod wall of the spring push rod 1, the metal top head 7 is fastened to the upper end of the metal push rod 8 by the fourth screw 6, the lower end of the spring push rod 1 is abutted against the upper end of the metal top head 7, the lower end of the metal push rod 8 extends to the inside of the two grasping fingers 13 and is fixedly connected to the metal push cup seat 14 by the fifth screw 15, and the metal push cup seat 14 is in contact with the top of the reaction cup 16.

[0023] The magnet assembly includes a magnet bushing 18, a second spring 20, a magnet mounting seat 21 and a magnet 22. The side wall of the incubation tray 23 is provided with a fixing hole connected to the placement groove. The magnet bushing 18 is transversely fixed to the inside of the fixing hole by a sixth screw 17. The magnet mounting seat 21 is movably arranged inside the magnet bushing 18. The second spring 20 is movably sleeved on the outer wall of the magnet mounting seat 21. The two ends of the second spring 20 are respectively fixedly connected to the inner side wall of the magnet bushing 18 and the side wall of the magnet mounting seat 21. The magnet 22 is fixedly arranged on the inner side wall of the magnet bushing 18 and the side wall of the magnet mounting seat 21. On the left side wall, the right end of the magnet mounting seat 21 extends to the outside of the magnet bushing 18 and a second open retaining ring 19 is fixed to the outer wall. The first spring 3 and the second spring 20 are both in a compressed state, and the reaction cup 16 is subjected to an axial external force. When the reaction cup 16 is pushed tightly inside the placement groove, the outside of the reaction cup 16 will squeeze the magnet 22, so that the magnet 22 pushes the magnet mounting seat 21 to slide inside the magnet bushing 18 and squeeze the second spring 20, thereby being able to apply a relative external force to the magnet 22 and make close contact with the outer wall of the reaction cup 16.

[0024] See also Figure 5 The angle between the side of the reaction cup 16 and the vertical direction is 0.3°, and the bottom of the reaction cup 16 is set with a guide fillet.

[0025] In summary, when the magnetic separation reaction cup placing device is in use, the reaction cup 16 can be tightly grasped by the grasping finger 13. When the grasping finger 13 moves downward and grasps the reaction cup 16, the top of the reaction cup 16 is set against the metal push cup seat 14. The metal push cup seat 14 will press the metal push rod 8 upward, so that the upper end of the metal push rod 8 pushes the spring push rod 1 upward through the metal head 7 to move, so that the spring push rod 1 and the spring limit block 5 squeeze the first spring 3 against each other. When the grasping finger 13 releases the reaction cup 6, At this time, the squeezed first spring 3 applies a relatively downward force to the spring push rod 1, so that the metal push cup seat 14 can push the reaction cup 6 tightly inside the placement groove on the surface of the incubation plate 23; when the reaction cup 16 is pushed tightly inside the placement groove, the outside of the reaction cup 16 will squeeze the magnet 22, so that the magnet 22 pushes the magnet mounting seat 21 to slide inside the magnet bushing 18 and squeeze the second spring 20, so that a relative external force can be applied to the magnet 22 and it can be in close contact with the outer wall of the reaction cup 16.

[0026] It should be noted that the term "comprises" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article, or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A magnetic separation reaction cup placing device, comprising an incubation tray (23), a reaction cup (16), a magnet assembly and a manipulator assembly, characterized in that: A plurality of evenly distributed placement grooves are formed around the edge of the upper surface of the incubation tray (23); the magnet assembly is arranged inside the incubation tray (23) and located on one side of the plurality of placement grooves; the manipulator assembly clamps the top of the reaction cup (16); the reaction cup (16) is located inside the placement grooves on the surface of the incubation tray (23); The manipulator assembly comprises a shell (24), a metal top head (7), a metal push rod (8), a metal push cup seat (14) and a gripping finger (13). A linear bearing (10) is fixedly arranged at the bottom of the shell (24) by a first screw (11). A gripping finger mounting seat (9) is fixedly arranged on the outer wall of the linear bearing (10). The gripping finger (13) is fixedly arranged on both sides of the gripping finger mounting seat (9) by a second screw (12). The two gripping fingers (13) are symmetrically distributed. The reaction cup (16) is located between the two gripping fingers (13). The metal push rod (8) is vertically located inside the linear bearing (10). The upper end of the metal push rod (8) extends to the inside of the shell (24). The inner wall of the shell (24) is fastened with a spring limit block (5) by a third screw (4). A spring push rod (1) is vertically arranged inside the spring limit block (5). The rod wall of the spring push rod (1) is slidably arranged inside the spring limit block (5) through a sliding hole, the rod wall of the spring push rod (1) and the part located above the spring limit block (5) are fixedly provided with a first opening retaining ring (2), the rod wall of the spring push rod (1) and the part located inside the spring limit block (5) are movably sleeved with a first spring (3), the upper end of the first spring (3) is fixedly connected to the top inner wall of the spring limit block (5), the lower end of the first spring (3) is fixedly connected to the rod wall of the spring push rod (1), the metal head (7) is fastened to the upper end of the metal push rod (8) by a fourth screw (6), the lower end of the spring push rod (1) is abutted against the upper end of the metal head (7), the lower end of the metal push rod (8) extends to the inside of the two grasping fingers (13) and is fixedly connected to the metal push cup seat (14) by a fifth screw (15), and the metal push cup seat (14) is in contact with the top of the reaction cup (16); The magnet assembly comprises a magnet bushing (18), a second spring (20), a magnet mounting seat (21) and a magnet (22); a fixing hole connected to the placement groove is provided on the side wall of the incubation tray (23); the magnet bushing (18) is transversely fixed inside the fixing hole by a sixth screw (17); the magnet mounting seat (21) is movably arranged inside the magnet bushing (18); the second spring (20) is movably sleeved on the outer wall of the magnet mounting seat (21); two ends of the second spring (20) are respectively fixedly connected to the inner side wall of the magnet bushing (18) and the side wall of the magnet mounting seat (21); the magnet (22) is fixedly arranged on the left side wall of the magnet mounting seat (21); the right end of the magnet mounting seat (21) extends to the outside of the magnet bushing (18) and a second opening retaining ring (19) is fixedly arranged on the outer wall.

2. The magnetic separation reaction cup placing device according to claim 1, characterized in that: The angle between the side of the reaction cup (16) and the vertical direction is 0.3°, and the bottom of the reaction cup (16) is arranged with a guide fillet.

3. The magnetic separation reaction cup placing device according to claim 1, characterized in that: The first spring (3) and the second spring (20) are both in a compressed state.

4. The magnetic separation reaction cup placing device according to claim 1, characterized in that: The reaction cup (16) is arranged to be subjected to an axial external force.

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