Automatic sample adding device

Abstract

The utility model relates to the technical field of medical detection, in particular to an automatic sample adding device which comprises a base plate, sliding rails are oppositely arranged on the base plate, a movable plate capable of sliding is arranged on the sliding rails, a detachable test tube rack is arranged on one side of the movable plate, and a detachable liquid storage box is arranged on the other side of the movable plate. A locking assembly used for fixing the test tube rack and the liquid storage box is arranged on the base plate, vertical plates are oppositely arranged on the two sides of the base plate, and a movable pipettor is arranged between the vertical plates. The test tube rack and the liquid storage box can be fixed through the locking assembly, so that the situation that the test tube rack and the liquid storage box deviate, and transfer of the liquid sample from the liquid storage box to the test tube is affected is avoided. When different test tube racks and liquid storage boxes need to be replaced or the liquid storage boxes need to be cleaned, fixation of the test tube racks and the liquid storage boxes by the locking assemblies can be quickly released, and the test tube racks and the liquid storage boxes can be replaced or the liquid storage boxes can be cleaned, so that the experiment efficiency and the applicability and universality of the device are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical detection technical field, concretely, relate to an automatic sample adding device. BACKGROUND

[0002] In medical experiments and biochemical analysis, transferring liquid samples into test tubes is a critical step in biomedical experiments and clinical detection, and the purpose is usually to perform subsequent analysis, reaction or detection operation.

[0003] In medical experiments and biochemical analysis, test tube racks are important tools for storing and supporting test tubes, and their stability and flexibility directly affect the transfer of samples and the efficiency of experiments. The existing test tube racks are usually directly placed or fixed on the experimental table by screws. If the test tube rack is directly placed on the experimental table, the test tube rack may be offset during the operation of the automatic sample adding device, affecting the accuracy of liquid transfer. SUMMARY

[0004] The utility model aims at providing an automatic sample adding device to solve the problems raised in the background.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] An automatic sample adding device comprises a base plate, a slide rail is arranged opposite to the base plate, a movable plate is arranged on the slide rail, a test tube rack is detachably arranged on one side of the movable plate, a liquid storage box is detachably arranged on the other side of the movable plate, a locking assembly is arranged on the base plate for fixing the test tube rack and the liquid storage box, vertical plates are arranged opposite to the two sides of the base plate, a pipettor is movably arranged between the vertical plates, and a driving assembly is arranged between the vertical plates for driving the pipettor to move.

[0007] Further, the locking assembly comprises a slot arranged opposite to the movable plate, square blocks are arranged on the bottoms of the test tube rack and the liquid storage box and can be inserted into the corresponding slots, lock holes are arranged on the square blocks, a groove is arranged between the slots, and a locking rod is arranged opposite to the groove in the groove and can be inserted into or separated from the lock hole.

[0008] Further, a mounting block is arranged opposite to the groove, a circular cavity is arranged in the mounting block and has an open end for mounting the locking rod, a mounting column is arranged at the open end of the circular cavity, one end of the locking rod extends out of the bottom wall of the mounting cavity and corresponds to the lock hole, the other end of the locking rod extends out of the mounting column and is located in the circular cavity, a connecting ring is arranged on the surface of the locking rod located in the circular cavity, and a spring is arranged on the locking rod between the bottom wall of the circular cavity and the connecting ring.

[0009] Further, a limiting block is arranged in the groove, upper and lower abutting surfaces are arranged on the two sides of the limiting block, a slope is arranged between the upper and lower abutting surfaces, and a threaded rod is arranged outside the movable plate, extends into the groove and is threadedly connected with the limiting block and can be rotated.

[0010] Further, the end of the threaded rod outside the groove body is provided with a handle for driving the threaded rod to rotate.

[0011] Further, the driving assembly comprises a screw rod arranged between the vertical plates, the side surface of the vertical plate is provided with a motor for driving the screw rod to rotate, the screw rod is threadedly connected with a sliding block, a plate body is arranged between the vertical plates, the plate body is provided with a sliding groove, the sliding block is provided with a moving block extending into the sliding groove, and the side surface of the sliding block is provided with a first electric cylinder connected with the pipette.

[0012] Further, the base plate is provided with a second electric cylinder for driving the moving plate to slide.

[0013] Compared with the prior art, the automatic sample adding device has the advantages that:

[0014] The utility model discloses, through locking assembly can fix test -tube rack and liquid storage box, avoid moving plate moving, test -tube rack and liquid storage box appear position deviation, influence liquid sample by liquid storage box to the transfer in test -tube. When needing to replace different test -tube rack and liquid storage box or to the liquid storage box cleaning, can be faster to remove locking assembly to test -tube rack and liquid storage box's fixation, to test -tube rack and liquid storage box are replaced or to the liquid storage box cleaning, to promote the experiment efficiency and the applicability and versatility of device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of an automatic sample adding device in the utility model.

[0016] Figure 2 It is the explosion structure schematic diagram of test -tube rack and liquid storage box on the moving plate in the utility model.

[0017] Figure 3 It is the section view of moving plate and its assembly in the utility model.

[0018] Figure 4 It is the structure schematic diagram of the assembly in the moving plate groove body in the utility model.

[0019] The meanings of the reference numbers in the figure are as follows: 100, substrate; 101, sliding rail; 102, moving plate; 103, test tube rack; 104, liquid storage box; 105, vertical plate; 106, pipette; 200, slot; 201, square block; 202, lock hole; 203, groove body; 204, lock rod; 205, mounting block; 206, circular cavity; 207, mounting column; 208, connecting ring; 209, spring; 300, limiting block; 301, upper abutting surface; 302, lower abutting surface; 303, inclined surface; 304, threaded rod; 305, handle; 400, lead screw; 401, motor; 402, sliding block; 403, plate body; 404, moving block; 405, first electric cylinder; 406, second electric cylinder. DETAILED DESCRIPTION

[0020] In order to further understand the content of the present application, the present application will be described in detail in conjunction with the drawings and examples. It should be understood that the examples are merely an explanation of the present application and not a limitation.

[0021] The following will be described in detail in conjunction with the drawings and examples. Figures 1-4 The present embodiment will be further described in detail.

[0022] Please refer to Figures 1-4 The automatic sample adding device in the present embodiment comprises a substrate 100, the substrate 100 is oppositely provided with sliding rails 101, the sliding rails 101 are provided with movable moving plates 102, one side of the moving plates 102 is provided with detachable test tube racks 103, the other side is provided with detachable liquid storage boxes 104, the substrate 100 is provided with locking assemblies for fixing the test tube racks 103 and the liquid storage boxes 104; the two sides of the substrate 100 are oppositely provided with vertical plates 105, the vertical plates 105 are provided with movable pipettes 106, and the vertical plates 105 are provided with driving assemblies for driving the pipettes 106 to move.

[0023] In the present embodiment, the sliding rails 101 are fixedly connected with the substrate 100, the moving plates 102 are slidably connected with the sliding rails 101, the test tube racks 103 are used for placing test tubes, the liquid storage boxes 104 are used for storing liquid samples to be transferred to the test tubes, and the pipettes 106 are used for sucking the liquid samples from the liquid storage boxes 104 and injecting the liquid samples into the test tubes.

[0024] In the present embodiment, the test tube racks 103 and the liquid storage boxes 104 can be fixed by the locking assemblies, so that the test tube racks 103 and the liquid storage boxes 104 do not deviate in position when the moving plates 102 move, and the transfer of the liquid samples from the liquid storage boxes 104 to the test tubes is not affected.

[0025] When different test tube racks 103 and liquid storage boxes 104 need to be replaced or the liquid storage boxes 104 need to be cleaned, the locking assembly can quickly release the fixation of the test tube racks 103 and the liquid storage boxes 104, so that the test tube racks 103 and the liquid storage boxes 104 can be replaced or the liquid storage boxes 104 can be cleaned, thereby improving the experimental efficiency and the applicability and versatility of the device.

[0026] In this embodiment, the liquid samples in the liquid storage boxes 104 can be transferred to the corresponding test tubes on the test tube racks 103 by moving the pipettes 106 between the vertical plates 105 and moving the test tube racks 103 driven by the moving plate 102.

[0027] In this embodiment, the driving assembly includes a lead screw 400 arranged between the vertical plates 105, a motor 401 arranged on the side surface of the vertical plate 105 for driving the lead screw 400 to rotate, a sliding block 402 threadedly connected to the lead screw 400, a plate body 403 arranged between the vertical plates 105, the plate body 403 being provided with a sliding groove, a moving block 404 arranged on the sliding block 402 and extending into the sliding groove, a first electric cylinder 405 arranged on the side surface of the sliding block 402 and having an output end connected to the pipette 106, and a second electric cylinder 406 arranged on the base plate 100 for driving the moving plate 102 to slide.

[0028] In this embodiment, the lead screw 400 is mounted between the vertical plates 105 by bearings, the plate body 403 is fixedly connected to the vertical plates 105, the moving block 404 is slidably connected to the sliding groove, the first electric cylinder 405 is fixedly connected to the sliding block 402, the pipette 106 is fixedly connected to the output end of the first electric cylinder 405, and the output end of the second electric cylinder 406 is fixedly connected to the base plate 100.

[0029] In this embodiment, the motor 401 is used to drive the pipette 106 to move laterally and reciprocally between the vertical plates 105, the first electric cylinder 405 is used to drive the pipette 106 to move up and down so as to suck liquid samples from the liquid storage boxes 104 and inject the liquid samples into the test tubes, and the second electric cylinder 406 is used to drive the test tube racks 103 and the liquid storage boxes 104 to move while cooperating with the lateral movement of the pipette 106, so that the pipette 106 can inject the liquid samples into the corresponding test tubes.

[0030] In this embodiment, the motor 401 is a servo motor, the first electric cylinder 405 and the second electric cylinder 406 are servo cylinders, and the servo motor and the servo cylinders are electrically connected to a servo driver, and the servo driver is electrically connected to a controller. After the motion trajectory is programmed by the controller, the controller sends instructions to the servo driver to control the motion of the servo motor and the servo cylinders, thereby controlling the positions of the pipette 106 and the test tube racks 103, so that after the pipette 106 sucks the liquid samples from the liquid storage boxes 104, the pipette 106 can inject the liquid samples into the corresponding test tubes on the test tube racks 103.

[0031] Please refer toFigures 1-4 In the embodiment, the locking assembly comprises slots 200 arranged on the moving plate 102, and the square blocks 201 arranged on the bottom of the test tube rack 103 and the liquid storage box 104 are inserted into the corresponding slots 200. The square blocks 201 are provided with locking holes 202, and the slots 200 are provided with groove bodies 203. The groove bodies 203 are provided with locking rods 204 which can be inserted into or separated from the locking holes 202.

[0032] In the embodiment, the square blocks 201 are fixedly connected with the test tube rack 103 and the liquid storage box 104. When the test tube rack 103 and the liquid storage box 104 are fixed, the square blocks 201 are inserted into the slots 200, and the locking rods 204 in the groove bodies 203 are inserted into the locking holes 202, so that the test tube rack 103 and the liquid storage box 104 are fixed. The test tube rack 103 and the liquid storage box 104 can be disassembled by separating the locking rods 204 from the locking holes 202.

[0033] Please refer to Figures 1-4 In the embodiment, the groove bodies 203 are provided with mounting blocks 205, and the mounting blocks 205 are provided with circular cavities 206 which are open at one end and used for mounting the locking rods 204. The open end of the circular cavities 206 is provided with mounting columns 207. One end of the locking rod 204 extends out of the bottom wall of the mounting cavity and corresponds to the locking hole 202, and the other end extends out of the mounting column 207 and is located in the circular cavity 206. The surface of the locking rod 204 in the circular cavity 206 is provided with a connecting ring 208, and the circular cavity 206 bottom wall and the connecting ring 208 are provided with a spring 209 which is sleeved on the locking rod 204.

[0034] In the embodiment, the mounting block 205 is fixedly connected with the groove body 203, and the mounting column 207 is threadedly connected with the open end of the circular cavity 206, so as to mount the components in the circular cavity 206. The connecting ring 208 is fixedly connected with the locking rod 204, and the spring 209 is used to push the connecting ring 208. The connecting ring 208 drives the locking rod 204 to separate from the locking hole 202, so that the test tube rack 103 and the liquid storage box 104 remain in the state of being disassembled.

[0035] In the embodiment, when the spring 209 pushes the locking rod 204 to separate from the locking hole 202, the part of the locking rod 204 inserted into the slot 200 will retract into the circular cavity 206, which does not affect the insertion of the square block 201 into the slot 200.

[0036] Please refer to Figures 1-4 In the embodiment, the groove body 203 is provided with a limiting block 300, and the two sides of the limiting block 300 are provided with upper abutting surfaces 301 and lower abutting surfaces 302. The upper abutting surfaces 301 and the lower abutting surfaces 302 are provided with inclined surfaces 303, and the moving plate 102 is provided with a threaded rod 304 which extends into the groove body 203 and is threadedly connected with the limiting block 300 and can be rotated.

[0037] In the embodiment, the limiting block 300 is in sliding connection with the bottom wall of the groove body 203, the two sides of the limiting block 300 abut against the end of the locking rod 204 extending out of the mounting column 207, and the end of the locking rod 204 extending out of the mounting column 207 can slide between the upper abutting surface 301, the inclined surface 303 and the lower abutting surface 302.

[0038] In the embodiment, the limiting block 300 is moved by rotating the threaded rod 304, when the end of the locking rod 204 extending out of the mounting column 207 abuts against the upper abutting surface 301, the locking rod 204 can be inserted into the lock hole 202 to fix the test tube rack 103 and the liquid storage box 104, when the end of the locking rod 204 extending out of the mounting column 207 slides from the upper abutting surface 301 to the lower abutting surface 302 along the inclined surface 303 and abuts against the lower abutting surface 302, the locking rod 204 can be separated from the lock hole 202 to release the fixation of the test tube rack 103 and the liquid storage box 104.

[0039] Please refer to Figures 1-4 In the embodiment, the end of the threaded rod 304 outside the groove body 203 is provided with a handle 305 for driving the threaded rod 304 to rotate.

[0040] In the embodiment, the handle 305 is fixedly connected with the threaded rod 304, the threaded rod 304 is rotated by rotating the handle 305, and the rotation of the threaded rod 304 drives the limiting block 300 to move, so as to fix or release the fixation of the test tube rack 103 and the liquid storage box 104.

[0041] In the embodiment, the upper abutting surface 301, the inclined surface 303 and the lower abutting surface 302 are arranged on the two sides of the limiting block 300 respectively, so that the rotation of the handle 305 can fix or release the fixation of the test tube rack 103 and the liquid storage box 104 at the same time, which is simple to operate and convenient for users to use.

[0042] In use, the handle 305 is rotated to make the locking rod 204 separate from the insertion groove 200, then the square block 201 is inserted into the insertion groove 200 to pre-fix the test tube rack 103 and the liquid storage box 104, after the pre-fixation is completed, the handle 305 is reversely rotated to make the locking rod 204 extend into the insertion groove 200 and be inserted into the lock hole 202, so as to completely fix the test tube rack 103 and the liquid storage box 104, then the motor 401 drives the pipettor 106 to move horizontally, and the second electric cylinder 406 drives the moving plate 102 to move, so that the pipettor 106 is located at the upper end of the liquid storage box 104, the first electric cylinder 405 drives the pipettor 106 to move downward, after the liquid sample is sucked from the liquid storage box 104, the first electric cylinder 405 drives the pipettor 106 to move upward to reset, then the motor 401 drives the pipettor 106 to move horizontally, and the second electric cylinder 406 drives the test tube rack 103 on the moving plate 102 to move, so that the liquid sample can be injected into the corresponding test tube.

[0043] In summary, the above is only the preferred embodiment of the present application, any changes and modifications made in accordance with the scope of the present application patent, should be the scope of the present application patent.

Claims

1. An automatic sample loading device comprising a base plate (100), characterized in that: The base plate (100) is provided with a slide rail (101) in opposite positions, the slide rail (101) is provided with a movable moving plate (102), one side of the moving plate (102) is provided with a detachable test tube rack (103), the other side is provided with a detachable liquid storage box (104), the base plate (100) is provided with a locking assembly for fixing the test tube rack (103) and the liquid storage box (104), the two sides of the base plate (100) are provided with vertical plates (105) in opposite positions, the vertical plates (105) are provided with a movable pipette (106) therebetween, and the vertical plates (105) are provided with a driving assembly for driving the pipette (106) to move.

2. The automatic sample adding device according to claim 1, characterized in that: The locking assembly comprises a slot (200) provided on the moving plate (102) in opposite positions, the bottom of the test tube rack (103) and the liquid storage box (104) is respectively provided with a square block (201) which can be inserted into the corresponding slot (200), the square block (201) is provided with a lock hole (202), and the slots (200) are provided with a groove (203), and the groove (203) is provided with a lock rod (204) which can be inserted into or separated from the lock hole (202) through the side wall of the groove (203).

3. The automatic sample adding device according to claim 2, characterized in that: The groove (203) is provided with a mounting block (205) in opposite positions, the mounting block (205) is provided with a circular cavity (206) with an open end for mounting the lock rod (204), the open end of the circular cavity (206) is provided with a mounting column (207), one end of the lock rod (204) extends out of the bottom wall of the mounting cavity and corresponds to the lock hole (202), the other end extends out of the mounting column (207) and is located in the circular cavity (206), the surface of the lock rod (204) is provided with a connecting ring (208), and the spring (209) is provided on the lock rod (204) and sleeved between the bottom wall of the circular cavity (206) and the connecting ring (208).

4. The automatic sample adding device according to claim 2, characterized in that: The groove (203) is provided with a limiting block (300), the two sides of the limiting block (300) are respectively provided with an upper abutting surface (301) and a lower abutting surface (302), and the upper abutting surface (301) and the lower abutting surface (302) are provided with an inclined surface (303), and the moving plate (102) is provided with a threaded rod (304) which is screwed with the limiting block (300) and can rotate.

5. The automatic sample adding device according to claim 4, characterized in that: The end of the threaded rod (304) outside the groove (203) is provided with a handle (305) for driving the threaded rod (304) to rotate.

6. The automatic sample loading device of claim 1, wherein: The driving assembly comprises a lead screw (400) provided between the vertical plates (105), a motor (401) provided on the side surface of the vertical plate (105) for driving the lead screw (400) to rotate, a sliding block (402) threadedly connected to the lead screw (400), a plate body (403) provided between the vertical plates (105), the plate body (403) is provided with a sliding groove, the sliding block (402) is provided with a moving block (404) extending into the sliding groove, and the side surface of the sliding block (402) is provided with a first electric cylinder (405) having an output end connected with the pipette (106).

7. The automatic sample loading device of claim 1, wherein: The base plate (100) is provided with a second electric cylinder (406) for driving the moving plate (102) to slide.

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