Automatic blood detection device

Abstract

The invention discloses an automatic blood detection device which comprises a rack, detection equipment and feeding equipment, the detection equipment and the feeding equipment are arranged on the rack, and the feeding equipment comprises a housing, a test tube conveying mechanism, a test tube transferring mechanism and a test tube grabbing mechanism, the test tube grabbing mechanism comprises a rotary driving assembly, a displacement driving unit and a clamping assembly capable of clamping a cover body of a test tube, the test tube transferring mechanism can clamp the tube wall of the test tube so as to convey the test tube between different operation positions, and the clamping assembly is driven by the rotary driving assembly to rotate so as to realize cover opening or closing operation. According to the automatic blood detection device provided by the invention, through mutual cooperation of the test tube grabbing mechanism and the test tube transferring mechanism, test tube grabbing operation, cover opening operation, mobile detection operation and cover closing operation can be realized, the whole process does not need to be operated by an operator, the workload of the operator is reduced, and the detection operation speed and the detection accuracy are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of blood testing, and in particular to an automated blood testing device. Background Art

[0002] Across the entire healthcare lifecycle, including disease diagnosis, early diagnosis, medication guidance, prognosis assessment, efficacy monitoring, and disease prediction and early warning, 70% to 80% of the data comes from laboratory medicine. Collecting human samples (blood, body fluids, tissues, etc.) for testing is the primary means of obtaining clinical diagnostic information. Because blood contains a wealth of information about a person's health, blood testing is the most preliminary and important diagnostic method.

[0003] According to the detection principles and methods, blood tests are divided into biochemical tests, immunoassays, coagulation function tests and other methods. Biochemical tests use various biochemical reactions, such as redox reactions and enzymatic reactions, to detect the content of various chemical components in the blood through specific instruments. Immunoassays are based on the principle of antigen-antibody specific binding. Commonly used methods include enzyme-linked immunosorbent assay (ELISA), which fixes the antigen or antibody on a solid phase carrier, binds the enzyme-labeled antigen or antibody to the corresponding antibody or antigen, and develops color after adding the substrate. The content of the antigen or antibody in the sample is detected by colorimetry. Coagulation function tests evaluate coagulation function by adding specific coagulation activators to the plasma and observing the time required for the plasma to coagulate.

[0004] The process of testing a blood sample using relevant equipment generally includes steps such as blood sample pre-test preparation, sample collection, sample testing, result analysis and reporting. For example, in the patent application entitled "An Automated Blood Testing System" with application publication number CN116699162A, the automated blood testing system includes a test preparation area, a test waiting area, and a test area. Sterile dry test tubes storing blood samples are placed on a support base, which moves the sterile dry test tubes driven by the support base. The support base includes an RFID electronic tag. The test preparation area includes an information entry device and an antenna, which write the blood sample number into the RFID electronic tag through the information entry device and the antenna. The test waiting area includes an automatic sampling dropper, a camera, and an information reading device for storing blood samples and sampling selected blood samples. The test area includes a test control module and multiple test units, which are arranged in an array. The test items in the test units can be configured and adjusted. The automated blood testing system also includes a main control module, which stores the blood sample number, test sequence, and test items as a set of data for subsequent control.

[0005] When testing blood samples using analytical methods such as biochemical tests, coagulation tests, immunoassays, and molecular biology tests, sample transfer and reagent addition are often involved. For example, biochemical tests typically involve centrifuging blood to separate serum or plasma, which is then transferred using a pipette into a test cup on a biochemical analyzer for measurement of various biochemical markers. Coagulation tests often require centrifuging collected whole blood to obtain plasma, which is then transferred to a specific testing instrument or reaction cup for testing. During the blood sample transfer process, operators often need to manually open the blood collection tube and transfer the blood sample. This process not only consumes the operator's time and energy, but also, due to frequent operation, it is easy for human negligence to cause the blood collection tube to be incompletely opened or loosely sealed, thereby affecting the accuracy of the test results. After opening the blood collection tube, it must be carefully placed in the relevant testing equipment, which increases the operator's workload. Especially when testing a large number of blood samples, repetitive operations can easily cause operator fatigue, further increasing the risk of operational errors. Summary of the Invention

[0006] The object of the present invention is to provide an automated blood testing device to address the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] An automated blood testing device includes a frame and a testing device and a loading device arranged on the frame. The testing device is provided with a placement portion for testing test tubes to be tested, and the loading device includes a test tube conveying mechanism and a test tube transfer mechanism. The test tube conveying mechanism is arranged at an angle to form a tube entry position and a tube removal position. A test tube grasping mechanism is correspondingly provided at the tube removal position. The test tube grasping mechanism includes a clamping assembly capable of clamping the cover of the test tube. The test tube transfer mechanism clamps the tube wall of the test tube to deliver the test tube into the testing device.

[0009] The above-mentioned automated blood testing device further includes a test tube recovery unit, which is arranged inside the housing and is used to recover the test tube after testing.

[0010] In the above-mentioned automated blood testing device, the test tube grasping mechanism also includes a mounting bracket and a movable seat, the clamping assembly is arranged on the movable seat, and a displacement driving unit is provided on the mounting bracket. The movable seat is driven by the displacement driving unit and can perform linear reciprocating motion along a preset direction.

[0011] In the above-mentioned automated blood testing device, the clamping assembly includes a driving rod and a cylindrical seat, and the cylindrical seat is hollow inside to form a clamping cavity capable of clamping the cover body.

[0012] In the above-mentioned automated blood testing device, at least three mounting portions are provided on the side wall of the cylindrical seat, and a clamping claw is rotatably mounted on each of the mounting portions.

[0013] The above-mentioned automated blood testing device further includes a connecting member, through which the driving rod is transmission-connected to each of the clamping jaws, and the clamping jaws are driven by the driving rod to clamp or release the cover body.

[0014] In the above-mentioned automated blood testing device, the clamping claw comprises a clamping end and a driving end that are arranged opposite to each other, and a soft clamping body is detachably provided on the inner wall of the clamping end.

[0015] In the above-mentioned automated blood testing device, the connecting member includes a connecting piece, one end of which is rotatably connected to the end of the driving rod, and the other end of which is rotatably connected to the driving end.

[0016] In the above-mentioned automated blood testing device, the test tube grabbing mechanism further includes a clamping drive assembly and a rotation drive assembly. The clamping drive assembly includes a drive component, and the upper end of the drive rod is rotatably connected to the drive component.

[0017] In the above-mentioned automated blood testing device, the rotary drive assembly is in driving connection with the cylindrical seat, and the cylindrical seat can be driven by the rotary drive assembly to rotate.

[0018] In the above technical solution, the automated blood testing device provided by the present invention includes a frame and a testing device and a loading device arranged on the frame. The loading device includes a cover shell and a test tube conveying mechanism, a test tube grabbing mechanism and a test tube transfer mechanism arranged inside the cover shell. The test tube grabbing mechanism includes a rotation drive assembly, a displacement drive unit and a clamping assembly capable of clamping the cover of the test tube. When the test tube containing the blood sample to be tested is transported to the tube removal position of the test tube placement slot, the test tube grabbing operation, cover opening operation, mobile detection operation and cover closing operation can be realized through the cooperation of the test tube grabbing mechanism and the test tube transfer mechanism. The entire process does not require operator operation, which reduces the operator's workload and improves the speed and accuracy of the detection operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1This is a schematic diagram of the structure of an automated blood testing device provided by an embodiment of the present invention;

[0021] Figure 2 A second structural diagram of an automated blood testing device provided by an embodiment of the present invention;

[0022] Figure 3 A schematic structural diagram of a feeding device provided in another embodiment of the present invention;

[0023] Figure 4 A schematic structural diagram of a test tube grabbing mechanism provided in another embodiment of the present invention;

[0024] Figure 5 A schematic structural diagram of a cylindrical seat provided in another embodiment of the present invention;

[0025] Figure 6 A schematic structural diagram of a clamping assembly provided in another embodiment of the present invention;

[0026] Figure 7 A schematic structural diagram of a cap-screwing assisting assembly provided in yet another embodiment of the present invention;

[0027] Figure 8 A schematic diagram of the installation of a cap-screwing assisting assembly according to another embodiment of the present invention;

[0028] Figure 9 An exploded view of an elastic support member provided in yet another embodiment of the present invention.

[0029] Description of reference numerals:

[0030] 1. Rack; 11. Detection equipment; 12. Cover; 13. Side wall opening; 14. Test tube recovery unit; 15. Test tube transfer mechanism; 2. Test tube transport mechanism; 21. Test tube rack; 22. Test tube placement slot; 221. Tube entry position; 222. Tube removal position; 3. Test tube grabbing mechanism; 31. Displacement drive unit; 32. Mounting bracket; 33. Moving seat; 331. Mounting structure; 34. Guide member; 4. Clamping assembly; 41. Drive rod; 42. Column seat; 421. Clamping cavity; 422. U-shaped opening slot; 43. Clamping claw; 431. Clamping plate; 432. Connecting plate; 433. Mounting bearing; 434. Clamping block; 435. Soft clamping body; 436. Arc segment; 437. Lower mounting opening; 44. Circular bottom plate; 441. Upper mounting opening ;45. Connecting plate;5. Clamping drive assembly;51. Driving cylinder;52. Piston rod;53. Connecting bearing;6. Rotating drive assembly;61. Driving motor;62. Driving gear;63. Mounting sleeve;64. Ring gear;7. Cap-screw assist assembly;71. Circular mounting plate;711. U-shaped avoidance groove;712. Center hole;72. Support body;721. Cylindrical channel;73. Cylindrical sleeve;731. Cylindrical mounting cavity;732. First spring member;74. Adjusting screw;741. Rotating operating member;742. Circular movable plate;8. Elastic supporting member;81. Circular positioning plate;82. Positioning column;83. Second spring member;84. Pressing column;85. Trigger member;86. Column mounting block;861. Mounting groove;862. Third spring member. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] The present invention provides an automated blood testing device, comprising a frame 1, a testing device 11 and a loading device arranged on the frame 1, the testing device 11 is provided with a to-be-tested placement portion for placing a test tube to be tested, the loading device comprises a cover 12, a test tube conveying mechanism 2 and a test tube transfer mechanism 15 arranged inside the cover 12, the test tube conveying mechanism 2 comprises a test tube placement slot 22 arranged inside the cover 12 for placing the test tube, the test tube placement slot 22 is inclined to form a tube entry position 221 and a tube removal position 222, a test tube grabbing mechanism 3 is correspondingly arranged at the tube removal position 222, the test tube grabbing mechanism 3 comprises a rotation drive assembly 6, a displacement drive unit 31 and a clamping assembly 4 capable of clamping the cover of the test tube, the test tube transfer mechanism 15 can clamp the tube wall of the test tube to transport the test tube between different operating positions, and the clamping assembly 4 is driven by the rotation drive assembly 6 to rotate to realize the cover opening or closing operation.

[0033] Specifically, the test tube stores a blood sample to be tested, and the testing device 11 is used to test the blood sample to be tested in the test tube. The testing device 11 is provided with a placement portion for the test tube to be tested, so that the test tube to be tested can be placed in the placement portion for testing after the cover is removed for testing. The testing device 11 adopts relevant equipment in the existing technology and will not be described in detail.

[0034] In this embodiment, the loading equipment includes a cover shell 12 arranged on the frame 1, and a test tube conveying mechanism 2, a test tube grabbing mechanism 3, a test tube transfer mechanism 15 and a test tube recovery part 14 are arranged in sequence inside the cover shell 12. Operation buttons and display components are provided on the cover shell 12, and the test tube grabbing mechanism 3 and the test tube transfer mechanism 15 can be operated and controlled by the operation buttons. The cover shell 12 can also be provided with a door that can be opened or closed. The test tube recovery part 14 is used to recover the test tubes after testing. In this way, when the test tube testing is completed, the test tube can be placed in the test tube recovery part 14 for recycling.

[0035] The test tube transport mechanism 2 includes a test tube rack 21 disposed on the inner wall of the housing 12. The test tube rack 21 is formed with a test tube placement slot 22 that matches the test tube size and is tilted. The test tube placement slot 22 has a certain length so that it can store more than five test tubes at a time. The test tube placement slot 22 has a tube entry position 221 and a tube removal position 222. The tube entry position 221 is at the highest position of the test tube placement slot 22, and the tube removal position 222 is at the lowest position of the test tube placement slot 22. The tilt angle of the test tube placement slot 22 is set as needed so that the test tube can slowly slide from the tube entry position 221 to the tube removal position 222. The tube entry position 221 is used to insert the test tube. A side wall opening 13 and an arc-shaped plate disposed at the side wall opening 13 are provided on one side of the housing 12. In this way, the test tube can be inserted into the test tube placement slot 22, the highest position, i.e., the tube entry position 221, through the side wall opening 13. During use, the test tube containing the blood to be tested can be placed from the opening to the highest position of the test tube placement slot 22 in sequence. Relying on gravity, the test tube slowly moves from the tube entry position 221 to the tube removal position 222 along the test tube placement slot 22. The tube removal position 222 of the test tube placement slot 22 corresponds to the test tube grabbing mechanism 3. When the test tube is at the lowest position, it can be grabbed by the test tube grabbing mechanism 3 for the next step of operation.

[0036] In this embodiment, the test tube grasping mechanism 3 includes a rotational drive assembly 6, a displacement drive unit 31, and a clamping assembly 4. The clamping assembly 4 is used to grasp the test tube and remove it from the test tube storage slot 22. During the grasping process, the clamping assembly 4 grasps the test tube at the lid portion. The clamping assembly 4 is in transmission connection with both the rotational drive assembly 6 and the displacement drive unit 31. When driven by the displacement drive unit 31, the clamping assembly 4 is capable of linear reciprocating motion in a predetermined direction. Thus, the clamping assembly 4 and the displacement drive unit 31 can be used to remove the test tube from the test tube storage slot 22. When the clamping assembly 4 is driven by the rotating drive assembly 6, the clamping assembly 4 can rotate to realize the cover opening operation or the cover closing operation. When performing the cover opening operation and the cover closing operation, the clamping assembly 4 needs to cooperate with the test tube conveying mechanism 2, that is, the test tube conveying mechanism 2 clamps and fixes the tube body part of the test tube, and the clamping assembly 4 rotates the cover body of the test tube, thereby removing the cover body from the test tube or covering the cover body on the test tube.

[0037] The test tube transfer mechanism 15 in this embodiment is used to grip test tubes and transport them to different workstations. The test tube transport mechanism 2 grips and secures the tube body during the transport process. Test tube transfer mechanism 15 can utilize a variety of well-established mechanisms from existing technologies, such as pneumatic grippers, electric grippers, and hydraulic grippers. Alternatively, a SCARA robot or Cartesian coordinate system robot can be employed. These well-established manipulators and grippers are well-suited to the functional requirements of the test tube transfer mechanism 15 in this embodiment and will not be described in detail.

[0038] During operation, the test tube grabbing mechanism 3 and the test tube transferring mechanism 15 cooperate with each other in the following steps:

[0039] The first step is the test tube grabbing operation: After the test tube is transported to the tube removal position 222, the clamping assembly 4 is driven by the displacement drive unit 31 to move downward. When the clamping assembly 4 moves to the position corresponding to the test tube, the clamping assembly 4 clamps the cover of the test tube. Then, the clamping assembly 4 is driven by the displacement drive unit 31 to move upward (along the axial direction of the test tube) to smoothly remove the test tube from the test tube rack 21.

[0040] Step 2: Uncapping: After the test tube is transported to a certain height, the test tube transfer mechanism 15 grips the tube wall. The gripping assembly 4 is then driven by the rotation drive assembly 6 to rotate (simultaneously, the gripping assembly 4 is driven by the displacement drive unit 31 to move slightly upward). The test tube transfer mechanism 15 grips the test tube body and maintains its position, allowing the test tube cap to be removed.

[0041] Step 3: Mobile testing operation: The test tube transfer mechanism 15 carefully places the test tube on the to-be-tested placement portion of the testing device 11, and the testing device 11 begins testing the test tube;

[0042] Step 4: Closing the lid: After testing is complete, the test tube transfer mechanism 15 grips the test tube and transports it to the operating position corresponding to the test tube grabbing mechanism 3. The clamping assembly 4 then moves downward until the lid is closed on the top of the test tube. The clamping assembly 4 then rotates under the drive of the rotation drive assembly 6 (while the clamping assembly 4 moves downward slightly under the drive of the displacement drive unit 31), causing the lid to rotate and close on the test tube. When the lid closing operation is complete, the clamping assembly 4 releases its grip on the lid, and the test tube transfer mechanism 15 places the test tube into the test tube recovery unit 14.

[0043] The automated blood testing device provided by the present invention includes a frame 1 and a testing device 11 and a loading device arranged on the frame 1. The loading device includes a cover 12 and a test tube conveying mechanism 2, a test tube grabbing mechanism 3 and a test tube transfer mechanism 15 arranged inside the cover 12. The test tube grabbing mechanism 3 includes a rotation drive component 6, a displacement drive unit 31 and a clamping component 4 capable of clamping the cover of the test tube. When the test tube containing the blood sample to be tested is transported to the tube removal position 222 of the test tube placement slot 22, the test tube grabbing mechanism 3 and the test tube transfer mechanism 15 cooperate with each other to realize the test tube grabbing operation, cover opening operation, mobile detection operation and cover closing operation. The entire process does not require operator operation, reducing the operator's workload and improving the speed and accuracy of the detection operation.

[0044] In the embodiment provided by the present invention, preferably, the test tube grasping mechanism 3 also includes a mounting bracket 32 and a movable seat 33, the clamping assembly 4 is arranged on the movable seat 33, the displacement driving unit 31 is arranged on the mounting bracket 32, and the movable seat 33 is driven by the displacement driving unit 31 and can perform reciprocating linear motion along a preset direction.

[0045] The mounting bracket 32 is fixedly installed inside the cover shell 12, and the mounting bracket 32 is set corresponding to the notch of the test tube placement slot 22. Preferably, the mounting bracket 32 and the test tube placement slot 22 are both tilted, and the tilt angle is set as needed, so that the test tube is placed in the test tube placement slot 22 at an angle to facilitate the test tube grabbing operation.

[0046] A displacement drive unit 31 and a guide member 34 are provided on the mounting bracket 32. The guide member 34 is arranged along the length direction of the mounting bracket 32. The movable seat 33 cooperates with the guide member 34 so that the movable seat 33 can only move along the length direction of the mounting bracket 32. The displacement drive unit 31 is transmission-connected to the movable seat 33. During use, the movable seat 33 is driven by the displacement drive unit 31 and can move up and down along the guide member 34. The displacement drive unit 31 can adopt the drive motor 61 and the screw in the prior art, or it can be other reciprocating drive structures in the prior art.

[0047] In another embodiment provided by the present invention, a mounting structure 331 for mounting the clamping assembly 4, the rotating drive assembly 6 and the clamping drive assembly 5 is provided on the movable seat 33. The mounting structure 331 can be a mounting seat or a mounting plate, so that the clamping assembly 4, the rotating drive assembly 6 and the clamping drive assembly 5 can move synchronously with the movable seat 33.

[0048] In another embodiment provided by the present invention, preferably, the clamping assembly 4 includes a driving rod 41, a cylindrical seat 42, and a clamping claw 43 provided on the cylindrical seat 42. The cylindrical seat 42 is hollow inside to form a clamping cavity 421. The size of the clamping cavity 421 is larger than the size of the cover body. A mounting portion is provided on the side wall of the cylindrical seat 42. The mounting portion is a U-shaped opening groove 422 provided on the side wall of the cylindrical seat 42 and connected to the clamping cavity 421. The number of U-shaped opening grooves 422 and the number of clamping claws 43 are the same, and there are at least three of each. The clamping claw 43 includes a clamping plate 431 and a connecting plate 432 fixedly connected together. A mounting bearing 433 is provided in the middle position of the clamping plate 431. A mounting hole is provided on the U-shaped opening groove 422. The two ends of the mounting bearing 433 are respectively installed in the mounting holes. In this way, the clamping claw 43 can rotate with the mounting bearing 433 as the rotation axis after being driven. In this way, when the clamping jaws 43 are installed on the U-shaped opening grooves 422 in a one-to-one correspondence, three or more clamping jaws 43 are combined to form a clamping structure for grabbing the cover.

[0049] The end of the clamping plate 431 away from the connecting plate 432 is the clamping end, and a clamping block 434 is provided on the clamping plate 431. The clamping block 434 is arranged perpendicular to the clamping plate 431, and an inner mounting groove is provided on the inner side surface of the clamping block 434. A soft clamping body 435 is provided in the inner mounting groove. During the grasping operation, the soft clamping body 435 on the clamping jaw 43 contacts the cover of the test tube, and the soft clamping body 435 is detachably installed in the inner mounting groove. When the soft clamping body 435 is damaged, it can be replaced accordingly.

[0050] The end of the connecting plate 432 away from the clamping plate 431 is the driving end, and an arc section 436 is provided on the driving end, which is bent in the direction away from the clamping block 434. A lower mounting opening 437 is provided on the arc section 436, and lower shaft holes are provided on the opposite sides of the lower mounting opening 437. The connecting component includes a circular base plate 44 and a connecting piece 45. The circular base plate 44 is fixedly set at the lower end of the driving rod 41, and the circular base plate 44 is circumferentially provided with upper mounting openings 441. The number of upper mounting openings 441 is the same as that of the clamping jaws 43 and is arranged one-to-one. The upper mounting openings 441 are spaced in sequence along the circumference of the circular base plate 44, and upper shaft holes are provided on opposite sides of the upper mounting opening 441. The circular base plate 44 is connected to the clamping jaw 43 via a connecting piece 45. An upper connecting shaft is provided at the upper end of the connecting piece 45. The upper connecting shaft is located in the upper mounting opening 441 and both ends of the upper connecting shaft are installed in the upper shaft hole. A lower connecting shaft is provided at the lower end of the connecting piece 45. The lower connecting shaft is located in the lower mounting opening 437 and both ends of the lower connecting shaft are installed in the lower shaft hole. In this way, a connecting rod mechanism is formed between the clamping jaw 43, the connecting piece 45 and the driving rod 41 to achieve the clamping operation of the cover body. The operation process is as follows:

[0051] When the driving rod 41 is pushed downward, the circular bottom plate 44 moves toward the clamping jaw 43, and the clamping jaw 43 is driven to install the bearing 433 to rotate to clamp the cover body. During this process, the arc segments 436 of the arc plate move in the direction of separation from each other, and the clamping blocks 434 move in the direction of approaching each other, and the distance between the clamping blocks 434 is reduced, thereby achieving the clamping of the cover body of the test tube.

[0052] On the contrary, when the driving rod 41 is pulled upward, the circular base plate 44 moves away from the clamping jaw 43, and the clamping jaw 43 is driven to install the bearing 433 to rotate to loosen the clamping of the cover body. In this process, the arc segments 436 of the arc plate move toward each other, while the clamping blocks 434 move away from each other, and the distance between the clamping blocks 434 increases, thereby loosening the clamping of the cover body.

[0053] In another embodiment provided by the present invention, further, the clamping drive assembly 5 includes a driving cylinder 51 and a driving component, the driving component is a piston rod 52, and a connecting bearing 53 is connected to the piston rod 52. The upper end of the driving rod 41 is rotatably connected to the connecting bearing 53, so that when the piston rod 52 moves up and down through the connecting bearing 53, it can drive the driving rod 41 to move up and down, but when the driving rod 41 rotates, it will not drive the piston rod 52 to rotate.

[0054] In another embodiment provided by the present invention, preferably, the rotation drive assembly 6 includes a drive motor 61 and a drive gear 62 connected to the drive motor 61, and a mounting sleeve 63 is coaxially fixedly installed on the top of the cylindrical seat 42. The interior of the mounting sleeve 63 forms a cylindrical clamping cavity 421 for installing the drive rod 41. The size of the cylindrical clamping cavity 421 is larger than the size of the drive rod 41. A ring gear 64 is provided on the outside of the top of the mounting sleeve 63, and the ring gear 64 is engaged with the drive gear 62. When the drive motor 61 is working, the drive gear 62 and the ring gear 64 cause the mounting sleeve 63 and the cylindrical seat 42 to rotate, thereby realizing the rotation of the cover body.

[0055] In another embodiment provided by the present invention, further, a screw cap assisting assembly 7 corresponding to the cover body is provided in the clamping cavity 421 inside the cylindrical seat 42, and the screw cap assisting assembly 7 includes a circular mounting plate 71 and a support body 72. The circular mounting plate 71 is fixedly mounted on the inner wall of the clamping cavity 421, and a U-shaped avoidance groove 711 is provided on the circular mounting plate 71. The number of the U-shaped avoidance grooves 711 is consistent with the number of the clamping jaws 43. Three or more U-shaped avoidance grooves 711 are arranged in sequence along the circumference of the circular mounting plate 71, so that the clamping jaws 43 correspond to the U-shaped avoidance grooves 711 to avoid the circular mounting plate 71 from blocking the movement of the clamping jaws 43.

[0056] A cylindrical sleeve 73 is coaxially arranged on the circular mounting plate 71, and the interior of the cylindrical sleeve 73 is hollow to form a cylindrical mounting cavity 731. A center hole 712 is provided on the circular mounting plate 71, and the center hole 712 is connected to the cylindrical mounting cavity 731. A thread is provided in the center hole 712, and an adjusting screw 74 is provided in the center hole 712. The upper end of the adjusting screw 74 extends from the center hole 712 and is provided with a rotating operating part 741. The lower end of the adjusting screw 74 is located in the cylindrical mounting cavity 731 and is connected to a circular movable plate 742. A threaded section is provided at the top of the cylindrical mounting cavity 731, and the circular movable plate 742 is circumferentially provided with a threaded portion that cooperates with the threaded section, so that the circular movable plate 742 can be rotatably mounted on the threaded section.

[0057] In another embodiment provided by the present invention, preferably, the support body 72 is a cylindrical structure, the support body 72 is movably connected in the cylindrical mounting cavity 731, and a first spring member 732 is provided between the support body 72 and the circular movable plate 742, the upper end of the first spring member 732 is fixedly connected to the circular movable plate 742, and the lower end of the first spring member 732 is fixedly connected to the support body 72, and a part of the support body 72 is always located outside the cylindrical mounting cavity 731. For the convenience of description, the length of the support body 72 located outside the cylindrical sleeve 73 is referred to as the protruding support portion.

[0058] In this manner, during use, the position of the circular movable plate 742 can be adjusted by rotating the adjusting screw 74, thereby adjusting the length of the protruding support portion. Specifically, because the support body 72, the first spring member 732, and the circular movable plate 742 are connected to form an integral connecting member, when the adjusting screw 74 is rotated to adjust the circular movable plate 742 toward the drive rod 41, the length of the protruding support portion decreases; conversely, when the circular movable plate 742 is adjusted to move away from the drive rod 41, the length of the protruding support portion increases.

[0059] In another embodiment provided by the present invention, preferably, an elastic support member 8 is further provided on the support body 72, and a cylindrical channel 721 is provided on the support body 72. The length of the cylindrical channel 721 is smaller than the length of the support body 72. The cylindrical channel 721 is open at the bottom of the support body 72 to form an opening portion. The elastic support member 8 is arranged in the cylindrical channel 721. The elastic support member 8 includes a circular positioning piece 81 and a positioning column 82 arranged on the circular positioning piece 81. The circular positioning piece 81 is slidably connected in the cylindrical channel 721, that is, the circular positioning piece 81 can move along the axial direction of the cylindrical channel 721, and a portion of the positioning column 82 extends from the cylindrical channel 721 to form an elastic extension portion.

[0060] A second spring member 83 is also provided in the cylindrical channel 721. One end of the second spring member 83 is fixedly mounted on the top of the cylindrical channel 721, and the other end is connected to the circular positioning piece 81. A pressure column 84 is provided on the side of the circular positioning piece 81 away from the positioning column 82, and a trigger member 85 is provided on the top of the cylindrical channel 721. When the circular positioning piece 81 moves upward along the cylindrical channel 721 to a certain displacement, the pressure column 84 and the trigger member 85 are pressed against each other and triggered, and an alarm is sounded.

[0061] By providing the capping assisting component 7 and the elastic supporting member 8, the following effects are achieved during actual operation:

[0062] First, when the clamping assembly 4 moves downward to grasp a test tube, the adjustment screw 74 and the circular movable plate 742 are first adjusted according to the height of the cover, so that the distance between the positioning post 82 and the clamping block 434 corresponds to the height of the cover. When the clamping assembly 4 is driven downward by the displacement drive unit 31 so that the positioning post 82 contacts the cover, it indicates that the clamping assembly 4 has moved downward to the appropriate position, and the displacement drive unit 31 can stop driving. If the displacement drive unit 31 continues to drive the clamping assembly 4 downward, the positioning post 82 and the circular positioning piece 81 will move into the cylindrical channel 721 to press against the second spring member 83. At the same time, the support body 72 also moves into the cylindrical mounting cavity 731 to press against the first spring member 732. When the circular positioning piece 81 moves upward along the cylindrical channel 721 to a certain displacement, the pressing post 84 presses against the trigger member 85, triggering the trigger, and an alarm is sounded to alert the operator. At this time, the pressure between the positioning column 82 and the cover body is still maintained in an appropriate range, and the test tube will not be damaged. This can improve the safety of the test tube grabbing operation of the clamping assembly 4.

[0063] Secondly, when the clamping assembly 4 rotates the cover body to open or close the cover, the clamping claw 43 provides a circumferential rotational driving force to the cover body, and the positioning column 82 provides a supporting force for the cover body. In this way, the cover body is subjected to both circumferential force and axial force, which can prevent the cover body from slipping and falling during rotation.

[0064] In another embodiment provided by the present invention, preferably, a cylindrical mounting block 86 is further provided in the cylindrical channel 721, and a mounting groove 861 is provided on the cylindrical mounting block 86 for installing the trigger member 85, and a third spring member 862 is provided in the mounting groove 861, and the trigger member 85 is installed on the third spring member 862. Under normal circumstances, a part of the trigger member 85 is located on the outside of the mounting groove 861. In this way, when the circular positioning piece 81 moves to a certain displacement in the cylindrical channel 721, the pressing column 84 and the trigger member 85 are pressed and triggered. If the trigger member 85 is triggered, the pressing column 84 continues to move, and the trigger member 85 is pressed and moved into the mounting groove 861 for protection. During this process, the trigger member 85 presses the third spring member 862. When the pressure on the trigger member 85 disappears, under the action of the third spring member 862, the trigger member 85 returns to its initial position.

[0065] In another embodiment provided by the present invention, preferably, the elastic coefficient of the second spring member 83 is much smaller than the elastic coefficient of the first spring member 732, so that when the positioning column 82 and the cover body are in contact and pressed, there will be two processes. The first process: when the clamping assembly 4 is driven by the displacement driving unit 31 to move downward so that the positioning column 82 is in contact with the cover body, the displacement driving unit 31 continues to drive the clamping assembly 4 to move downward, and the positioning column 82 and the circular positioning piece 81 will move into the cylindrical channel 721 to press the second spring member 83. In this process, although the support body 72 also moves into the cylindrical mounting cavity 731 to press the first spring member 732, since the elastic coefficient of the second spring member 83 is much smaller than the elastic coefficient of the first spring member 732, the movement stroke of the positioning column 82 and the circular positioning piece 81 is much greater than the movement stroke of the support body 72, until the pressing column 84 presses against the trigger member 85 to trigger the trigger. After the alarm is sounded to remind the operator, the trigger member 85 continues to move so that it is pressed and moved into the installation groove 861 for protection. At this time, the pressing column 84 is in direct contact with the cylindrical mounting block 86, and then enters the second process. In the second process, due to the contact between the pressing column 84 and the cylindrical mounting block 86, the trigger member 85 is located in the installation groove 861 and will not be damaged. Subsequently, the positioning column 82 and the circular positioning piece 81 will not move relative to the support body 72, but will move into the cylindrical mounting cavity 731 together with the support body 72. In this way, the first spring member 732 and the second spring member 83 realize two-stage buffering, and in the first process, the first spring member 732 makes the pressure between the positioning column 82 and the cover body very small, which can not only realize the early warning and provide axial support force to the cover body, but also will not cause damage to the cover body and the test tube, and when the first process ends and enters the second process, the trigger member 85 can be well protected.

[0066] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. An automated blood testing device, comprising a frame, a testing device and a loading device mounted on the frame, wherein the testing device is provided with a placement portion for placing a test tube to be tested, characterized in that: The loading device includes a test tube conveying mechanism and a test tube transfer mechanism. The test tube conveying mechanism is arranged at an angle to form a tube feeding position and a tube taking position. A test tube grasping mechanism is correspondingly arranged at the tube taking position. The test tube grasping mechanism includes a clamping assembly capable of clamping the cover of the test tube. The test tube transfer mechanism clamps the tube wall of the test tube to deliver the test tube into the detection equipment.

2. The automated blood testing device according to claim 1, wherein: It also includes a test tube recovery component, which is arranged inside the cover shell and is used to recover the test tube after testing.

3. The automated blood testing device according to claim 1, wherein: The test tube grabbing mechanism also includes a mounting bracket and a movable seat. The clamping assembly is arranged on the movable seat. A displacement driving unit is arranged on the mounting bracket. The movable seat is driven by the displacement driving unit to perform linear reciprocating motion along a preset direction.

4. The automated blood testing device according to claim 1, wherein The clamping assembly includes a driving rod and a cylindrical seat. The cylindrical seat is hollow inside to form a clamping cavity capable of clamping the cover body.

5. The automated blood testing device according to claim 4, wherein: At least three mounting parts are provided on the side wall of the columnar seat, and a clamping claw is rotatably mounted on each of the mounting parts.

6. The automated blood testing device according to claim 5, wherein: It also includes a connecting component, through which the driving rod is transmission-connected to each of the clamping claws, and the clamping claws are driven by the driving rod to clamp or release the cover body.

7. The automated blood testing device according to claim 6, wherein: The clamping jaw comprises a clamping end and a driving end which are arranged opposite to each other, and a soft clamping body is detachably arranged on the inner wall of the clamping end.

8. The automated blood testing device according to claim 7, wherein: The connecting member includes a connecting piece, one end of the connecting piece is rotatably connected to the end of the driving rod, and the other end of the connecting piece is rotatably connected to the driving end.

9. The automated blood testing device according to claim 4, wherein: The test tube grabbing mechanism further comprises a clamping drive assembly and a rotation drive assembly. The clamping drive assembly comprises a drive component, and the upper end of the drive rod is rotatably connected to the drive component.

10. The automated blood testing device according to claim 9, wherein: The rotary drive assembly is in driving connection with the cylindrical seat, and the cylindrical seat can be driven by the rotary drive assembly to rotate.

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