A biochemical analysis device

Abstract

The present invention discloses a biochemical analysis device, which includes an analysis chamber assembly, a telescopic sampling mechanism, a transfer mechanism, an adding mechanism, an incubation and detection mechanism, and a controller installed in the analysis chamber assembly. Through the telescopic sampling structure of the present invention, an external test tube can be received into the chamber body and conveyed to the transfer mechanism, where sample dilution is performed. The diluted reagent can be transferred to the reagent adding assembly, and corresponding reagents are added through the reagent adding assembly. After the addition is completed, it is transferred from the same position from the reagent adding assembly to the transfer mechanism, and then conveyed to the incubation and detection mechanism through the transfer mechanism for incubation and detection to obtain an analysis result. The entire process does not require the participation of a manipulator, thereby reducing costs. In addition, throughout the analysis process, the operator only needs to place the reagent sample on the telescopic sampling structure, and the subsequent entire process is automatically carried out without the need for the operator to undergo long-term professional training.

Description

Technical Field

[0001] The present invention relates to the technical field of biochemical analysis, and particularly to a biochemical analysis device. Background Art

[0002] With the vigorous development of the automation technology of medical devices, the degree of automation in medical laboratories is also developing rapidly. More and more manual operations and semi-automatic devices are gradually replaced by laboratory automation devices, and laboratory operators have changed from heavy and repetitive physical labor to precise and efficient mental labor.

[0003] A biochemical analysis device, often referred to as a biochemical analyzer, is an instrument that uses the principle of photoelectric colorimetry or chemiluminescence principle, etc., to measure a specific chemical component in body fluids. It can quickly and accurately detect a variety of biochemical items, such as liver function, kidney function, blood glucose, blood lipid analysis, and other biochemical items that need to be carried out. These test results provide important scientific basis for the diagnosis, treatment, and prevention of diseases.

[0004] However, in existing biochemical analysis devices, generally after quantitatively loading a sample into a reagent tube, a mechanical arm is used to pick up and move the reagent tube to complete the transfer of the entire reagent tube in the biochemical analysis device. Through the setting of the mechanical arm, automated operation can be carried out to improve the detection efficiency and accuracy of the reagent tube. However, there are the following problems with the transfer of the reagent tube in the biochemical analysis device by the mechanical arm:

[0005] 1. Since the test tube is small, the precision requirements for the robotic arm are high, resulting in a high purchase and installation cost for the robotic arm. For laboratories or medical institutions with limited budgets, there is a relatively large burden.

[0006] 2. The robotic arm requires professional technical personnel for regular maintenance and repair. If the maintenance is improper or the repair is not timely, it will affect the performance and service life of the robotic arm, and affect the accuracy of the robotic arm during operation, thereby affecting the test results of the biochemical analysis device.

[0007] 3. Operators need to receive professional training to understand the working principle, operation method, and maintenance knowledge of the robotic arm. If the operator operates improperly or lacks necessary training, it may increase the failure rate and damage risk of the robotic arm.

[0008] Therefore, how to reduce costs and the requirements for operators while ensuring the automation level and detection efficiency of the biochemical analysis device is a technical problem that urgently needs to be solved at present. Summary of the Invention

[0009] The purpose of the present invention is to provide a biochemical analysis device to solve the problems of high cost and high requirements for operators in the existing biochemical analysis device in the background art.

[0010] To achieve the above object, the present invention provides a biochemical analysis device, which includes an analysis chamber assembly, a telescopic sampling mechanism, a transfer mechanism, an adding mechanism, an incubation and detection mechanism, and a controller installed in the analysis chamber assembly; the analysis chamber assembly includes a chamber body, a chamber door movably installed at the front end of the chamber body, and a connection structure installed on the chamber body and the chamber door; the telescopic sampling mechanism includes an inlet and outlet assembly installed on the bottom surface of the inner cavity of the chamber body, a sample tray group movably installed on the inlet and outlet assembly, a lateral movement assembly installed on the chamber body and the sample tray group, and a conveying assembly installed on the inlet and outlet assembly for conveying the test tubes on the sample tray group to the transfer mechanism; the transfer mechanism includes a first electric rotating disk installed in the chamber body, a first test tube clamping assembly installed on the first electric rotating disk, a first lifting power source located between the telescopic sampling mechanism and the first electric rotating disk, and a first lifting assembly installed in the chamber body beside the first electric rotating disk, the first lifting assembly is used to drive the first test tube clamping assembly to move up and down, and the first lifting power source is used to lift the first test tube clamping assembly; the adding mechanism includes a second electric rotating disk installed in the chamber body, a second test tube clamping assembly installed on the second electric rotating disk, a reagent adding assembly installed in the chamber body beside the second electric rotating disk, and a dilution assembly installed in the chamber body; the incubation and detection mechanism includes a third electric rotating disk installed in the chamber body, a third test tube clamping assembly installed on the third electric rotating disk, and a detection assembly installed in the chamber body beside the third electric rotating disk.

[0011] Optionally, the connection structure includes an installation opening provided on the chamber body, a chamber door hole provided on the installation opening, connection shafts installed at both ends of the chamber door corresponding to the installation opening, and a permanent magnet installed on the chamber body corresponding to the chamber door.

[0012] Optionally, the chamber door is made of a magnetically conductive material, and a sealing strip is installed on the side surface of the chamber door; a pull-down electromagnet is installed on the top of the first lifting power source.

[0013] Optionally, the inlet and outlet assembly includes a sliding seat installed on the bottom surface of the inner cavity of the chamber body, a T-shaped slider slidably installed on the sliding seat, a power support installed in the chamber body, an inlet and outlet power source installed on the power support, and a power transmission wheel installed on the inlet and outlet power source.

[0014] Optionally, the inlet and outlet power source drives the power transmission wheel to rotate, the power transmission wheel drives the T-shaped slider to move, and the T-shaped slider drives the sample tray group to move; a lateral guiding block is installed on the T-shaped slider.

[0015] Optionally, the sample tray group includes a sampling tray movably installed on the T-shaped slider, a plurality of test tube seats slidably installed on the sampling tray at equal intervals, and test tube placement holes provided on the test tube seats at equal intervals.

[0016] Optionally, an avoidance groove is provided on the T-shaped slider, and the bottom surface of the test tube holder contacts the conveying assembly through the avoidance groove.

[0017] Optionally, a sliding groove is provided on the sample injection tray, a limiting slider corresponding to the sliding groove is provided on the test tube holder, a connecting magnet is installed on the test tube holder, and the sample injection tray is made of a magnetically conductive material.

[0018] Optionally, the lateral movement assembly is installed on the sample injection tray and the chamber body; a guiding groove adapted to the lateral guiding block is provided at the bottom of the sample injection tray.

[0019] Optionally, the lateral movement assembly includes a rack installed on the side surface of the sample injection tray, a lateral power source installed in the chamber body, and a lateral gear installed on the lateral power source and meshing with the rack.

[0020] Optionally, the conveying assembly includes a conveying electric cylinder installed in the chamber body, an L-shaped plate installed on the conveying electric cylinder, a conveying power source installed on the L-shaped plate, a connecting shaft installed on the conveying power source, and a conveying wheel installed on the connecting shaft and contacting the bottom surface of the test tube holder; waist-shaped holes corresponding to the connecting shaft are provided on both the T-shaped slider and the sliding seat; an avoidance groove hole corresponding to the conveying wheel is provided on the T-shaped slider.

[0021] Optionally, the first electric rotating disk, the second electric rotating disk, and the third electric rotating disk have the same structure; the minimum distance between the first test tube clamping assembly and the bottom of the chamber body is greater than the minimum distance between the second test tube clamping assembly and the bottom of the chamber body, and the second test tube clamping assembly and the third test tube clamping assembly are installed at the same height.

[0022] Optionally, the first test tube clamping assembly includes a mounting post installed on the first electric rotating disk, a test tube clamping block slidably installed on the mounting post at equal angles, and a locking structure installed on the test tube clamping block; the first lifting power source can push the test tube clamping block to rise; unlocking structures corresponding to the locking structure are provided on the second test tube clamping assembly and the third test tube clamping assembly.

[0023] Optionally, the test tube clamping block is composed of two identical test tube clamping plates spliced up and down, and a semicircular card slot corresponding to the test tube is provided on the test tube clamping block; the locking structure includes a sliding transverse groove provided on the test tube clamping plate, spring half holes at both ends of the sliding transverse groove, a sliding avoidance groove perpendicular to the sliding transverse groove, a control groove communicating with the middle position of the sliding transverse groove and perpendicular to the sliding transverse groove, a control member movably installed in the control groove, an unlocking groove penetrating through the test tube clamping plate and communicating with the control groove, a spring installed in the spring half hole, a U-shaped clamping plate slidably installed in the sliding transverse groove and the sliding avoidance groove, and a matching card slot provided on the U-shaped clamping plate 368.

[0024] Optionally, the second test tube clamping assembly and the third test tube clamping assembly have the same structure, both comprising a rotating center column, a rotating disk mounted on the rotating center column, and unlocking structures mounted on the rotating disk at equal intervals; a telescopic control assembly for driving the unlocking structure to move is installed in the bin body.

[0025] Optionally, the rotating disk is provided with a mounting groove and a movable slide groove; the unlocking structure includes a reset test tube holder slidably mounted in the mounting groove, a reset slider mounted at the bottom of the reset test tube holder and corresponding to the movable slide groove, a reset spring mounted in the movable slide groove and corresponding to the reset slider, a control magnet mounted in the mounting groove and located at the bottom of the reset test tube holder, an elastic unlocking structure mounted on the reset test tube holder, a sealing plate mounted on the rotating disk and in contact with the top surface of the reset test tube holder, and a test tube receiving ring column arranged on the reset test tube holder; the telescopic control assembly includes a mounting frame mounted in the bin body, and a control electromagnet mounted in the mounting frame.

[0026] Optionally, a temperature control component is installed on the warehouse body, which includes a constant temperature and humidity machine installed on the top of the warehouse body, a connecting pipe arranged at the air outlet of the constant temperature and humidity machine, a temperature sensor and a humidity sensor arranged in the warehouse body, and one end of the connecting pipe is connected to the warehouse body.

[0027] Compared with the prior art, the present invention provides a biochemical analysis device with the following beneficial effects:

[0028] The biochemical analysis device can receive an external test tube into the chamber body through the telescopic sample introduction structure and transport it to the circulation mechanism, where the sample is diluted, and the diluted reagent can be transferred to the reagent adding component, where the corresponding reagent is added, and after the addition is completed, the reagent is transferred from the reagent adding component to the circulation mechanism from the same position, where it is transported to the incubation detection mechanism through the circulation mechanism, where incubation detection is performed to obtain the analysis result, and the whole process does not require the participation of a robot, thereby reducing costs; in addition, during the whole analysis process, the operator only needs to place the reagent sample on the telescopic sample introduction structure, and the subsequent whole process is automatically performed, where the operator does not need to undergo long-term professional training, and maintenance is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0030] Figure 2 It is a structural schematic diagram of the warehouse body and the warehouse door of the present invention.

[0031] Figure 3 The present invention Figure 2 A partial enlarged view of point A in the middle.

[0032] Figure 4 It is a schematic diagram of the overall structural layout of the present invention.

[0033] Figure 5 It is a schematic diagram of the telescopic sampling mechanism of the present invention.

[0034] Figure 6 It is the present invention Figure 5 The partial enlarged view at position B in the present invention.

[0035] Figure 7 It is a schematic diagram of the inlet / outlet component and the conveying component of the present invention.

[0036] Figure 8 It is a schematic diagram of the sample tray group of the present invention.

[0037] Figure 9 It is a schematic diagram of the transfer mechanism of the present invention.

[0038] Figure 10 It is a schematic diagram of the first lifting component of the present invention.

[0039] Figure 11 It is a schematic diagram of the mounting post of the present invention.

[0040] Figure 12 It is a schematic diagram of the friction damping block of the present invention.

[0041] Figure 13 It is a schematic diagram of the test tube clamp of the present invention.

[0042] Figure 14 It is the present invention Figure 13 The partial enlarged view at position C in the present invention.

[0043] Figure 15 It is a schematic diagram of the control part of the present invention.

[0044] Figure 16 It is a schematic diagram of the reagent adding mechanism of the present invention.

[0045] Figure 17 It is a schematic diagram of the second test tube clamping component and the unlocking structure of the present invention.

[0046] Figure 18 It is a schematic diagram of the elastic unlocking structure of the present invention.

[0047] Figure 19 It is a schematic diagram of the reagent adding component of the present invention.

[0048] Figure 20 It is a cross-sectional view of the quantitative tank of the present invention.

[0049] Figure 21 It is a schematic diagram of the incubation and detection mechanism of the present invention.

[0050] Identifications in the figure: 1. Analysis bin assembly; 11. Bin body; 12. Bin door; 121. Sealing strip; 13. Connection structure; 131. Installation opening; 132. Bin door hole; 133. Connection shaft; 134. Permanent magnet; 2. Telescopic sampling mechanism; 21. In-out component; 211. Slide base; 212. T-shaped slider; 213. Power support; 214. In-out power source; 215. Power transmission wheel; 216. Lateral guide block; 217. Avoidance groove; 22. Sample tray group; 221. Sampling tray; 222. Test tube holder; 223. Test tube placement hole; 224. Slide groove; 225. Limit slider; 226. Connection magnet; 227. Kidney-shaped hole; 228. Guide groove; 229. Avoidance groove hole; 23. Lateral movement component; 231. Rack; 232. Lateral power source; 233. Lateral gear; 24. Conveyor component; 241. Conveyor electric cylinder; 242. L-shaped plate; 243. Conveyor power source; 244. Connection shaft; 245. Conveyor wheel; 3. Transfer mechanism; 31. First electric rotating disk; 32. First test tube clamping component; 321. Mounting post; 3211. T-shaped connection groove; 3212. Friction damping block; 322. Test tube clamping block; 3221. Test tube clamping plate; 3222. Semi-circular clamping groove; 3223. T-shaped connection part; 3224. Kidney-shaped groove; 3225. Ball; 3226. Semi-circular hole; 3227. Extrusion spring; 33. First lifting power source; 331. Pull-down electromagnet; 34. First lifting component; 341. Lifting mounting bracket; 342. Boosting electromagnet; 343. Lifting electric cylinder; 344. Transfer electromagnet; 345. Stirring lifting electric cylinder; 346. Lifting stirring rod; 347. Lifting connection plate; 348. Stirring motor; 36. Locking structure; 361. Sliding horizontal groove; 362. Spring half-hole; 363. Sliding avoidance groove; 364. Control groove; 365. Control part; 3651. Mounting part; 3652. Guide part; 3653. Rubber abutting block; 3654. Unlocking part; 3655. Guide inclined plane; 366. Unlocking groove; 367. Spring; 368. C-shaped clamping plate; 369. Matching clamping groove; 4. Adding mechanism; 41. Second electric rotating disk; 42. Second test tube clamping component; 421. Rotating center column; 422. Rotating disk; 4221. Installation groove; 4222. Moving slide groove; 43. Reagent adding component; 44. Dilution component; 441. Liquid storage tank; 442. Liquid extraction pipe; 443. Support frame; 444. Quantitative tank; 445. Liquid outlet pipe; 446. Micro vacuum pump; 447. Liquid level sensor; 448. Air pump; 449. Solenoid valve; 5. Incubation and detection mechanism; 51. Third electric rotating disk; 52. Third test tube clamping component; 53. Detection component; 6. Unlocking structure; 61. Reset test tube holder; 62. Reset slider; 63. Reset spring; 64. Control magnet; 65. Elastic unlocking structure; 651. Unlocking seat; 652. Unlocking part; 654. Unlocking spring; 655. Moving limit plate; 656. Matching inclined plane;66. Sealing plate; 67. Test tube receiving ring column; 7. Telescopic control component; 71. Mounting bracket; 72. Control electromagnet; 8. Temperature control component; 81. Thermo-hygrostat; 82. Connecting pipe; 83. Temperature sensor; 84. Humidity sensor; 9. Controller. Detailed implementation manner

[0051] The following is a detailed description in combination with the accompanying drawings and specific implementations. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0052] A biochemical analysis device of the present application can be applicable to occasions such as biochemical analysis, and of course can also be used in other similar application scenarios. A biochemical analysis device will be described in detail below.

[0053] Refer to the attached Figure 1 — Figure 21 As shown, a schematic structural diagram of a preferred embodiment of a biochemical analysis device of the present application is shown. The biochemical analysis device includes an analysis chamber assembly 1, a telescopic sampling mechanism 2, a transfer mechanism 3, an adding mechanism 4, an incubation and detection mechanism 5, and a controller 9 installed in the analysis chamber assembly 1.

[0054] Through the setting of the analysis chamber assembly 1 of the present invention, a sealed structure is formed to form a darkroom environment, ensuring that the incubation and detection mechanism 5 can detect the reagent and avoiding the influence of external light on the detection result; through the setting of the telescopic sampling mechanism 2, it is used for sampling the sample; through the setting of the transfer mechanism 3, it is used for transferring the test tube; through the setting of the adding mechanism 4, it is used for adding the corresponding reagent; through the setting of the incubation and detection mechanism 5, it is used for detecting the sample.

[0055] Refer to the attached Figure 1 — Figure 3 As shown, in the present invention, the analysis chamber assembly 1 includes a chamber body 11, a chamber door 12 movably installed at the front end of the chamber body 11, and a connection structure 13 installed on the chamber body 11 and the chamber door 12; wherein, the connection structure 13 includes a mounting opening 131 provided on the chamber body 11, a chamber door hole 132 provided on the mounting opening 131, connection shafts 133 installed at both ends of the chamber door 12 corresponding to the mounting opening 131, and a permanent magnet 134 installed on the chamber body 11 corresponding to the chamber door 12; the chamber door 12 is made of a magnetically conductive material, and a sealing strip 121 is installed on the side surface of the chamber door 12.

[0056] Through the arrangement of the bin body 11 and the bin door 12, a darkroom environment is formed to avoid the influence of external light on detection; through the arrangement of the permanent magnet 134 and in cooperation with the bin door 12 made of a magnetically conductive material, the bin door 12 must be manually closed, thereby reminding the operator to ensure that after the sample is placed and the operator confirms that there is no error, the detection is carried out; through the arrangement of the sealing strip 121, the sealing performance between the bin door 12 and the bin body 11 is ensured.

[0057] Refer to the appendix Figure 4 — Figure 8 As shown in the figure, in the present invention, the telescopic sampling mechanism 2 includes an inlet and outlet component 21 installed on the inner cavity bottom surface of the bin body 11, a sample tray group 22 movably installed on the inlet and outlet component 21, a lateral movement component 23 installed on the bin body 11 and the sample tray group 22, and a conveying component 24 installed on the inlet and outlet component 21 for conveying the test tubes on the sample tray group 22 to the transfer mechanism 3.

[0058] Through the arrangement of the inlet and outlet component 21, it is used to drive the sample tray group to move, so that the sample tray group enters and exits the bin body 11, and is used to drive the test tubes for entering and exiting the bin body 11; through the arrangement of the sample tray group 22, it is used to place the test tubes, so that the test tubes can move along with the inlet and outlet component 21; through the arrangement of the lateral movement component 23, it drives the sample tray group 22 to move laterally, so that each row of test tubes on the sample tray group 22 can be loaded onto the transfer mechanism 3; through the arrangement of the conveying component 24, it is used to drive the test tubes on the sample tray group 22 to move, so that the test tubes can be clamped by the transfer mechanism 3 for the transfer of the test tubes for detection.

[0059] Refer to the appendix Figure 4 — Figure 8 As shown in the figure, in the present invention, the inlet and outlet component 21 includes a sliding seat 211 installed on the inner cavity bottom surface of the bin body 11, a T-shaped slider 212 slidably installed on the sliding seat 211, a power support 213 installed in the bin body 11, an inlet and outlet power source 214 installed on the power support 213, and a power transmission wheel 215 installed on the inlet and outlet power source 214; the inlet and outlet power source 214 drives the power transmission wheel 215 to rotate, and the power transmission wheel 215 drives the T-shaped slider 212 to move, and the T-shaped slider 212 drives the sample tray group 22 to move; a lateral guide block 216 is installed on the T-shaped slider 212.

[0060] In the present invention, through the provision of the sliding seat 211, it is used to guide the movement of the T-shaped slider 212; through the provision of the T-shaped slider 212, it is used to drive the sample tray group 22 to move; through the provision of the in-out power source 214, it is used to drive the power transmission wheel 215 to rotate, so that the frictional force between the power transmission wheel 215 and the T-shaped slider 212 can drive the T-shaped slider 212 to move. It should be particularly noted that the in-out power source 214 is a motor, and the number of in-out power sources 214 is not less than 1; through the provision of the lateral guide block 216, it guides the lateral movement of the sample tray group 22.

[0061] Refer to the appendix Figure 4 — Figure 8 As shown, in the present invention, the sample tray group 22 includes a sampling tray 221 movably mounted on the T-shaped slider 212, a plurality of test tube holders 222 slidably mounted on the sampling tray 221 at equal intervals, and test tube placement holes 223 provided on the test tube holders 222 at equal intervals; an avoidance groove 217 is provided on the T-shaped slider 212, and the bottom surface of the test tube holder 222 contacts the conveying assembly 24 through the avoidance groove 217; a sliding groove 224 is provided on the sampling tray 221, a limiting slider 225 corresponding to the sliding groove 224 is provided on the test tube holder 222, a connecting magnet 226 is mounted on the test tube holder 222, and the sampling tray 221 is made of a magnetically conductive material; the lateral movement assembly 23 is mounted on the sampling tray 221 and the housing 11.

[0062] In the present invention, by mounting the sampling tray 221 on the T-shaped slider 212, the sampling tray 221 can move in and out of the housing 11 along with the T-shaped slider 212; by movably mounting the test tube holder 222 on the sampling tray 221, the test tube holder 222 can move to ensure the conveyance of the test tubes; through the provision of the test tube placement holes 223, it is used to define the placement positions of the test tubes; through the provision of the avoidance groove 217, it is used to avoid the conveying assembly 24, so that the conveying assembly 24 can push the test tube holder 222 to move; through the provision of the sliding groove 224, in cooperation with the limiting slider 225, it guides the movement of the test tube holder 222. It should be particularly noted that a sealing block is installed at the notch of the sliding groove 224 to limit the limiting slider 225 to prevent the limiting slider 225 from separating from the sliding groove 224; through the provision of the connecting magnet 226, in cooperation with the setting that the sampling tray 221 is made of a magnetically conductive material, the sampling tray 221 will not move randomly, and the sampling tray 221 will only separate from the connecting magnet 226 when the external force is greater than the magnetic force between the sampling tray 221 and the connecting magnet 226.

[0063] Refer to the appendix Figure 4 — Figure 8As shown in the figure, in the present invention, the lateral movement assembly 23 includes a rack 231 installed on the side of the sample tray 221, a lateral power source 232 installed in the chamber body 11, and a lateral gear 233 installed on the lateral power source 232 and meshing with the rack 231. In the present invention, through the meshing arrangement of the rack 231 and the lateral gear 233, when the lateral gear 233 rotates, it can drive the rack 231 to move, thereby driving the sample tray 221 to move; through the setting of the lateral power source 232, the lateral gear 233 can rotate; through the setting of the guide groove 228, in cooperation with the lateral guide block 216, it can guide the lateral movement of the sample tray 221; it should be particularly noted that the lateral guide block 216 is arranged in a T shape, and a friction strip is installed on the lateral guide block 216 to prevent the sample tray 221 from moving laterally randomly.

[0064] Refer to the attached Figure 4 — Figure 8 As shown in the figure, in the present invention, the conveying assembly 24 includes a conveying electric cylinder 241 installed in the chamber body 11, an L-shaped plate 242 installed on the conveying electric cylinder 241, a conveying power source 243 installed on the L-shaped plate 242, a connecting shaft 244 installed on the conveying power source 243, and a conveying wheel 245 installed on the connecting shaft 244 and in contact with the bottom surface of the test tube holder 222; waist-shaped holes 227 corresponding to the connecting shaft 244 are provided on both the T-shaped slider 212 and the sliding seat 211; an avoidance slot hole 229 corresponding to the conveying wheel 245 is provided on the T-shaped slider 212.

[0065] In the present invention, through the setting of the conveying electric cylinder 241, it is used to drive the L-shaped plate 242 to move up and down, thereby driving the conveying power source 243 to move up and down; through the setting of the L-shaped plate 242, it provides an installation position for the conveying power source 243, and the conveying power source 243 can be a motor; through the setting of the conveying wheel 245, it transmits the power of the conveying power source 243, and drives the test tube holder 222 to move through the rotation of the conveying wheel 245; through the setting of the waist-shaped holes 227, it avoids the connecting shaft 244 to prevent the connecting shaft 244 from interfering with the T-shaped slider 212 and the sliding seat 211; through the setting of the avoidance slot hole 229, it avoids the conveying wheel 245 to ensure that the T-shaped slider 212 can move normally.

[0066] Refer to the attached Figure 9 — Figure 15As shown in the figure, in the present invention, the transfer mechanism 3 includes a first electric rotating disk 31 installed in the bin body 11, a first test tube clamping component 32 installed on the first electric rotating disk 31, a first lifting power source 33 located between the telescopic sampling mechanism 2 and the first electric rotating disk 31, a first lifting component 34 installed in the bin body 11 and beside the first electric rotating disk 31, a dilution component 44 installed in the bin body 11. The first lifting component 34 is used to drive the first test tube clamping component 32 to move up and down. A pull-down electromagnet 331 is installed on the first lifting power source 33.

[0067] In the present invention, through the setting of the first electric rotating disk 31, as a rotating power source, it drives the first test tube clamping component 32 to rotate at equal angles; through the setting of the first test tube clamping component 32, it is used to clamp the test tubes conveyed into the bin body 11 by the telescopic sampling mechanism 2 in sequence. Cooperating with the first electric rotating disk 31, it enables the detection test tubes to be conveyed and transferred in the bin body 11; through the setting of the first lifting power source 33, it can lift the first test tube clamping component 32 to separate the detection test tube from the test tube seat 222; through the setting of the first lifting component 34, it is used to drive the first test tube clamping component 32 to move up and down; through the setting of the dilution component 44, it is used to dilute the samples in the detection test tubes.

[0068] Refer to the appendix Figure 9 — Figure 15 As shown in the figure, in the present invention, the first test tube clamping component 32 includes a mounting post 321 installed on the first electric rotating disk 31, a test tube clamping block 322 slidably installed on the mounting post 321 at equal angles, and a locking structure 36 installed on the test tube clamping block 322; the first lifting power source 33 pushes the test tube clamping block 322 to rise; unlocking structures 6 corresponding to the locking structure 36 are provided on the second test tube clamping component 42 and the third test tube clamping component 52.

[0069] In the present invention, through the setting of the mounting post 321, it provides an installation position for the test tube clamping block 322; by movably installing the test tube clamping block 322 on the mounting post 321, it enables the detection test tube to move up and down along the mounting post 321; through the setting of the locking structure 36, it is used to clamp the test tube so that when the test tube clamping block 322 moves up and down along the mounting post 321, it can drive the detection test tube to move up and down; it should be noted that the first lifting power source 33 is an electric cylinder; through the setting of the unlocking structure 6, the locked state of the locking structure 36 can be released, enabling the detection test tube to be separated from the test tube clamping block 322 to ensure that the test tube can be transferred.

[0070] Refer to the appendix Figure 8 and Figure 13As shown in the figure, in the present invention, the test tube clamping block 322 is formed by splicing two identical test tube clamping plates 3221 up and down. A semi-circular card slot 3222 corresponding to the test tube is provided on the test tube clamping block 322; the locking structure 36 includes a sliding transverse slot 361 provided on the test tube clamping plate 3221, spring semi-holes 362 at both ends of the sliding transverse slot 361, a sliding avoidance slot 363 perpendicular to the sliding transverse slot 361, a control slot 364 connected to the middle position of the sliding transverse slot 361 and perpendicular to the sliding transverse slot 361, a control member 365 movably installed in the control slot 364, an unlocking slot 366 penetrating through the test tube clamping plate 3221 and communicating with the control slot 364, a spring 367 installed in the spring semi-hole 362, a U-shaped clamping plate 368 slidably installed in the sliding transverse slot 361 and the sliding avoidance slot 363, a mating card slot 369 provided on the U-shaped clamping plate 368, and a chamfer is provided on the U-shaped clamping plate 368; it should be particularly noted that the two test tube clamping plates 3221 can be connected by welding or bolts and other means.

[0071] Through the setting of the semi-circular card slot 3222 in the present invention, the test tube for detection can be clamped into the semi-circular card slot 3222, and the test tube can be clamped in cooperation with the locking structure 36; through the setting of the sliding transverse slot 361 and the sliding avoidance slot 363, conditions are provided for the installation of the U-shaped clamping plate 368 and the movement of the U-shaped clamping plate 368 is avoided; through the setting of the spring semi-hole 362, an installation position is provided for the spring 367, power is provided for the U-shaped clamping plate 368, and the U-shaped clamping plates 368 are pushed to approach each other to clamp the test tube; through the setting of the control slot 364, an installation position is provided for the control member 365; through the setting of the unlocking slot 366, it is used to avoid the unlocking structure 6, so that the unlocking structure 6 can contact the control member 365 through the unlocking slot 366; through the setting of the mating card slot 369, in cooperation with the semi-circular card slot 3222, a complete circle is formed to clamp the test tube for detection. Rubber pads can be installed on the slot walls of the semi-circular card slot 3222 and the mating card slot 369 to protect the test tube for detection and at the same time increase the friction with the test tube for detection.

[0072] Refer to the appendix Figure 10 — Figure 14 As shown in the figure, in the present invention, the first lifting assembly 34 includes a lifting installation bracket 341 installed in the bin body 11, a boosting electromagnet 342 installed on the lifting installation bracket 341 and directly above the first lifting power source 33, two lifting electric cylinders 343 installed on the lifting installation bracket 341, a flow-through electromagnet 344 installed on the lifting electric cylinder 343, and the two lifting electric cylinders 343 are respectively located at the positions where the first test tube clamping assembly 32 and the second test tube clamping assembly 42 perform test tube transfer, and where the first test tube clamping assembly 32 and the third test tube clamping assembly 52 perform test tube transfer.

[0073] In the present invention, by providing the assisting electromagnet 342, the height requirement of the first lifting power source 33 can be reduced, avoiding interference between the first lifting power source 33 at a too high position and the test tube clamping block 322; by providing the lifting electric cylinder 343, it is used to drive the rotation electromagnet 344 to move up and down, thereby driving the test tube clamping block 322 to move up and down; by providing the rotation electromagnet 344, the test tube clamping block 322 can move upward.

[0074] Refer to the appendix Figure 10 — Figure 14 As shown, in the present invention, a stirring lifting electric cylinder 345 is further installed on the lifting mounting bracket 341, a lifting stirring rod 346 slidably mounted on the lifting mounting bracket 341, a lifting connecting plate 347 movably mounted on the top of the lifting stirring rod 346 and connected to the stirring lifting electric cylinder 345, and a stirring motor 348 mounted on the lifting mounting bracket 341 and connected to the lifting stirring rod 346 through a gear; it should be particularly noted that the thickness of the driving gear on the stirring motor 348 is less than the thickness of the driven gear on the lifting stirring rod 346, the lifting connecting plate 347 is connected to the stirring lifting electric cylinder 345, and the lifting stirring rod 346 is movably connected to the lifting connecting plate 347.

[0075] In the present invention, the stirring motor 348 drives the lifting stirring rod 346 to rotate, and the stirring lifting electric cylinder 345 is used to drive the lifting stirring rod 346 to move in and out of the test tube.

[0076] Refer to the appendix Figure 13 — Figure 15 As shown, in the present invention, a T-shaped connecting portion 3223 is provided at one end of the test tube clamping plate 3221 connected to the mounting column 321. The T-shaped connecting portion 3223 is provided with a waist-shaped groove 3224. A ball 3225 is movably installed in the waist-shaped groove 3224, and the waist-shaped groove 3224 communicates with the outside. The test tube clamping plate 3221 is further provided with a semi-circular hole 3226 communicating with the waist-shaped groove 3224. A compression spring 3227 in contact with the ball 3225 is installed in the semi-circular hole 3226; a T-shaped connecting groove 3211 corresponding to the T-shaped connecting portion 3223 is provided on the mounting column 321. A friction damping block 3212 is installed at one end of the T-shaped connecting groove 3211 close to the lifting mounting bracket 341. The bottom of the friction damping block 3212 is provided with an inclined surface.

[0077] In the present invention, by providing the ball 3225, the friction between the T-shaped connecting portion 3223 and the T-shaped connecting groove 3211 is reduced; by providing the waist-shaped groove 3224, the ball 3225 is avoided, so that the ball 3225 can be hidden; by providing the friction damping block 3212, the friction between the friction damping block 3212 and the T-shaped connecting portion 3223 can overcome other gravity, so that the test tube clamping block 322 remains stationary.

[0078] Refer to the appendix Figure 13 — Figure 15 As shown, the control member 365 includes a mounting portion 3651, a guiding portion 3652 disposed on the mounting portion 3651, a rubber abutting block 3653 mounted on one end of the guiding portion 3652 away from the mounting portion 3651, and an unlocking portion 3654 mounted on the bottom of the mounting portion 3651 and located in the unlocking groove 366. A guiding inclined surface 3655 is provided on the unlocking portion 3654, and the guiding inclined surface 3655 corresponds to the elastic unlocking structure 65.

[0079] In the present invention, through the arrangement of the guiding portion 3652, the movement of the control member 365 is guided and limited to prevent the control member 365 from separating from the control groove 364; through the arrangement of the rubber abutting block 3653, it is in direct contact with the test tube to protect the test tube with rubber material; through the arrangement of the unlocking portion 3654, together with the guiding inclined surface 3655 at the bottom of the unlocking portion 3654, the elastic unlocking structure 65 can push the control member 365 to move.

[0080] Refer to the appendix Figure 16 — Figure 20 As shown, in the present invention, both the dilution assembly 44 and the reagent addition assembly 43 include a liquid storage tank 441, a liquid extraction tube 442 mounted on the liquid storage tank 441, a support frame 443 mounted in the housing 11, a metering tank 444 mounted on the support frame 443, a liquid outlet tube 445 mounted on the bottom of the metering tank 444, a micro vacuum pump 446 mounted on the support frame 443 and communicating with the metering tank 444, a liquid level sensor 447 mounted in the metering tank 444, an air pump 448 mounted on the support frame 443 and communicating with the metering tank 444, and solenoid valves 449 are provided on both the liquid extraction tube 442 and the liquid outlet tube 445.

[0081] In the present invention, through the arrangement of the liquid storage tank 441, water or reagent is stored; through the arrangement of the micro vacuum pump 446, the liquid in the liquid storage tank 441 can be extracted and transported into the metering tank 444; through the arrangement of the liquid level sensor 447, the liquid in the metering tank 444 is quantified to ensure quantitative dilution and addition; through the arrangement of the air pump 448, the liquid in the metering tank 444 can be discharged; through the arrangement of the solenoid valves 449, the opening and closing of the liquid extraction tube 442 and the liquid outlet tube 445 are controlled to control the flow direction of the liquid.

[0082] Refer to the appendix Figure 17 — Figure 18As shown, in the present invention, the elastic unlocking structure 65 includes an unlocking seat 651 installed on the resetting test tube seat 61, an unlocking member 652 movably installed in the unlocking seat 651, a movable limiting plate 655 arranged on the side of the unlocking member 652, and an unlocking spring 654 in contact with the bottom of the movable limiting plate 655. The top of the unlocking member 652 is provided with a matching inclined surface 656 corresponding to the guide inclined surface 3655. The unlocking member 652 is made of magnetic conductive material, and the magnetic force between the unlocking member 652 and the control magnet 64 is greater than the elastic force of the unlocking spring 654.

[0083] See attached Figure 16 — Figure 19 As shown, in the present invention, the second test tube clamping assembly 42 and the third test tube clamping assembly 52 have the same structure, both including a rotating central column 421, a rotating disk 422 mounted on the rotating central column 421, and an unlocking structure 6 is installed on the rotating disk 422 at equal intervals; a telescopic control assembly 7 for driving the unlocking structure 6 to move is installed in the warehouse body 11. It should be particularly noted that the first electric rotating disk 31, the second electric rotating disk 41 and the third electric rotating disk 51 have the same structure; the minimum distance between the first test tube clamping assembly 32 and the bottom of the warehouse body 11 is greater than the minimum distance between the second test tube clamping assembly 42 and the bottom of the warehouse body 11, and the second test tube clamping assembly 42 and the third test tube clamping assembly 52 have the same installation height, that is, the minimum distance between the second test tube clamping assembly 42 and the bottom surface of the warehouse body 11 and the minimum distance between the third test tube clamping assembly 52 and the bottom surface of the warehouse body 11 are equal.

[0084] The present invention limits the installation heights of the first test tube clamping assembly 32, the second test tube clamping assembly 42 and the third test tube clamping assembly 52 to ensure the lifting and lowering movement of the test tube clamping block 322 in the first test tube clamping assembly 32, so as to clamp and release the test tube.

[0085] See attached Figure 16 — Figure 19 As shown, in the present invention, a mounting groove 4221 and a movable slide groove 4222 are provided on the rotating disk 422; the unlocking structure 6 includes a reset test tube holder 61 slidably installed in the mounting groove 4221, a reset slider 62 installed at the bottom of the reset test tube holder 61 and corresponding to the movable slide groove 4222, a reset spring 63 installed in the movable slide groove 4222 and corresponding to the reset slider 62, a control magnet 64 installed in the mounting groove 4221 and located at the bottom of the reset test tube holder 61, an elastic unlocking structure 65 installed on the reset test tube holder 61, a sealing plate 66 installed on the rotating disk 422 and in contact with the top surface of the reset test tube holder 61, and a test tube receiving ring column 67 arranged on the reset test tube holder 61.

[0086] In the present invention, the reset test tube seat 61 is provided for transferring and receiving test tubes; the reset slider 62 is provided to cooperate with the moving chute 4222 to move the reset test tube seat 61 along the moving chute 4222; the reset spring 63 is provided to provide a power source to push the reset slider 62 to move, so that the reset test tube seat 61 moves and resets; the control magnet 64 is provided to push the elastic unlocking structure 65 to move, and the movement of the elastic unlocking structure 65 is controlled by the position between the control magnet 64 and the elastic unlocking structure 65; the sealing plate 66 is provided to limit the reset test tube seat 61 to ensure that the reset test tube seat 61 can only move along the moving chute 4222. It should be noted that an unlocking member 652 is installed on the test tube seat 222.

[0087] Refer to the appendix Figure 16 As shown in the figure, in the present invention, the telescopic control assembly 7 includes a mounting bracket 71 installed in the housing 11 and a control electromagnet 72 installed in the mounting bracket 71.

[0088] Through the setting of the control electromagnet 72, it is used to control the movement of the reset test tube seat 61. The reset test tube seat 61 is made of a magnetically conductive material. It should be noted that the current direction of the control electromagnet 72 can be changed, so that the magnetic field of the control electromagnet 72 can be improved, so that the reset test tube seat 61 and the control magnet 64 can be controlled to move synchronously, or the reset test tube seat 61 can be controlled to move independently while the control magnet 64 remains stationary, so as to control whether the elastic unlocking structure 65 is unlocked.

[0089] Refer to the appendix Figure 1 — Figure 3 As shown in the figure, in the present invention, a temperature control assembly 8 is installed on the housing 11. The temperature control assembly 8 includes a thermostatic and humidistatic machine 81 installed on the outer top of the housing 11, a connecting pipe 82 provided at the air outlet of the thermostatic and humidistatic machine 81, a temperature sensor 83 and a humidity sensor 84 provided in the housing 11, and one end of the connecting pipe 82 is communicated with the inside of the housing 11.

[0090] In the present invention, through the setting of the thermostatic and humidistatic machine 81, the temperature and humidity in the housing 11 can be controlled, thereby reducing the evaporation of water in the test tube being detected, ensuring that the reagent in the test tube is at a suitable temperature, ensuring reaction and incubation, and ensuring that the detection assembly 53 can perform detection; it should be noted that the detection assembly 53 is a PMT photomultiplier tube assembly, which belongs to the prior art and has not been improved in this application, so it will not be elaborated in this application.

[0091] Refer to the appendix Figure 1 — Figure 21 As shown in the figure, the use process of the present invention is as follows:

[0092] First step, the operator controls the telescopic sampling mechanism 2 to start working through the controller 9, so that the sample tray group 22 exits the warehouse. The operator places the test tubes to be detected into the test tube placement holes 223 of the test tube holders 222. It should be noted that the amount of the substance to be detected in each test tube is the same, and the top of the test tube protrudes from the test tube holder 222. Specifically, the controller 9 controls the inlet and outlet power source 214 to start rotating, drives the power transmission wheel 215 to rotate, and drives the T-shaped slider 212 to move through the frictional force between the power transmission wheel 215 and the T-shaped slider 212, so that the sample tray group 22 exits the warehouse.

[0093] Second step, the operator controls the telescopic sampling mechanism 2 to drive the sample tray group 22 into the chamber 11 through the controller 9. Subsequently, the operator manually closes the chamber door 12, and then controls the detection to start through the controller 9. Specifically, the controller 9 controls the inlet and outlet power source 214 to reverse, so that the T-shaped slider 212 moves inward, driving the sample tray group 22 into the chamber 11.

[0094] Third step, the controller 9 controls the lateral movement assembly 23 to adjust the position of the sample tray group 22, and cooperates with the conveying assembly 24 to convey the test tubes on the test tube holders 222 to the first test tube clamping assembly 32. Specifically, the controller 9 controls the lateral power source 232 to start working. Through the meshing relationship between the lateral gear 233 and the rack 231, it drives the sampling tray 221 to move, so that the bottom of one test tube holder 222 at the outermost end of the sampling tray 221 contacts the conveying assembly 24. Subsequently, the controller 9 controls the conveying electric cylinder 241 in the conveying assembly 24 to start working, driving the L-shaped plate 242 to rise, so that the conveying wheel 245 contacts the bottom surface of the test tube holder 222. Subsequently, the conveying power source 243 starts working, driving the conveying wheel 245 to start rotating, so that the test tube holder 222 moves towards the first test tube clamping assembly 32. After the test tube contacts the first test tube clamping assembly 32, the first test tube clamping assembly 32... It should be noted that the distance that the conveying power source 243 drives the test tube holder 222 to move each time is fixed. After moving a fixed distance, the conveying power source 243 will stop for a specified time. After the specified time, it will start again. After repeating several times, the conveying power source 243 reverses to reset the test tube holder 222. Then the lateral power source 232 works again to move the sampling tray 221 a specified distance. Then the conveying power source 243 starts again, and so on until all the test tubes are conveyed to the first test tube clamping assembly 32.

[0095] Step 4: When the conveying wheel 245 rotates to convey the test tube, the test tube will contact the first test tube clamping assembly 32, and the first test tube clamping assembly 32 clamps the test tube. Specifically, as the test tube moves, the test tube will enter the semi-circular card slot 3222 and contact the rubber abutting block 3653 in the control member 365, pushing the rubber abutting block 3653 to move, causing the control member 365 to move. At this time, the U-shaped clamping plate 368 contacts the guiding portion 3652 of the control member 365. At this time, the control member 365 cannot offset the elastic force of the spring 367. At this time, the spring 367 pushes the U-shaped clamping plate 368 to move, causing the U-shaped clamping plates 368 to approach each other to clamp the test tube. After clamping, the controller 9 controls the first lifting power source 33 to push the test tube clamping block 322 upward to contact the assisting electromagnet 342. During the upward movement of the test tube clamping block 322, the ball will be squeezed and contracted, squeezing the compression spring 3227, causing the T-shaped connecting portion 3223 to contact the friction damping block 3212. When this part is completed, the controller 9 controls the first lifting power source 33 to reset. Subsequently, the controller 9 controls the first electric rotating disk 31 to rotate a specified angle to prepare for the next test tube seat. Subsequently, the controller 9 controls the conveying power source 243 to drive the test tube seat 222 to move until all the test tubes are conveyed onto the first test tube clamping assembly 32. It should be noted that it is necessary to cooperate with the first lifting power source 33 and the pulling-down electromagnet 331 to pull down the test tube clamping block 322, and at this time, it does not contact the unlocking member 652.

[0096] Step 5: As the first electric rotating disk 31 rotates, starting from the first test tube clamping, when the first electric rotating disk 31 rotates a specified number of times, it means that the first test tube to be detected is located below the dilution assembly 44 at this time. The controller 9 controls the dilution assembly 44 to start working and add a fixed amount of clear water into the test tube. Specifically, the controller 9 controls the solenoid valve 449 on the liquid suction pipe 442 to open and the solenoid valve 449 on the liquid outlet pipe 445 to close. The micro vacuum pump 446 works to reduce the pressure in the metering tank 444. The clear water in the liquid storage tank 441 enters the metering tank 444 through the liquid suction pipe 442 until it reaches the specified liquid level. Subsequently, the controller 9 stops the micro vacuum pump 446, and the air pump 448 starts to work to squeeze out the clear water in the metering tank 444 and convey it into the test tube for dilution.

[0097] Step 6: After the test tube passes through the dilution assembly 44, it continues to rotate a specified number of times. When the test tube clamp block 322 holding the test tube moves onto the transfer electromagnet 344, the controller 9 controls the lifting electric cylinder 343 to drive the test tube clamp block 322 to descend through the transfer electromagnet 344. At the same time, the controller 9 controls the control electromagnet 72 in the telescopic control assembly 7 to be energized, causing the reset test tube seat 61 to move and the control magnet 64 to be stationary. At this time, the unlocking member 652 in the elastic unlocking structure 65 is no longer attracted by the control magnet 64, and the unlocking spring 654 pushes the unlocking member 652 upward, causing the unlocking member 652 to disengage from the unlocking portion 3654, bringing the mating inclined surface 656 into contact with the guiding inclined surface 3655, pushing the control member 365 to move, causing the end of the U-shaped clamping plate 368 to move along the sliding cross groove 361, squeezing the spring 367, and bringing the end of the U-shaped clamping plate 368 into contact with the plane on the mounting portion 3651 of the control member 365. At this time, the U-shaped clamping plate 368 releases the clamping of the test tube, and the test tube enters the reset test tube seat 61;

[0098] Step 7: As the second electric rotating disk 41 rotates at equal angles, when it rotates a specified number of times, the first test tube reaches below the reagent adding assembly 43, and reagent is added to the test tube in the same way as the dilution assembly 44; when all the test tubes have been added with reagents, at the same position, the test tubes are transferred; specifically, the transfer electromagnet 344 drives the test tube clamp 3221 to descend, and then the controller 9 controls the reset test tube seat 61 and the control magnet 64 to extend synchronously by changing the direction of the control electromagnet 72. The test tube contacts the rubber abutting block 3653 to clamp the test tube, and then resets;

[0099] Step 8: Using the same principle as in Step 6, the test tube is transferred to the third test tube clamping assembly 52 for detection by the detection assembly 53. After the detection is completed, in the same way as in Step 7, the test tube is transferred. At this time, above the test tube transfer test tube seat 222, the assisting electromagnet 342 is de-energized, the first lifting power source 33 extends, and at the same time, the pulling-down electromagnet 331 is energized to pull down the test tube clamp block 322 to contact and unlock with the unlocking member 652 on the sampling tray 221, and then push the test tube clamp block 322 up to the top; it should be particularly noted that the position sequence of test tube clamping is opposite to the position sequence below the test tube.

[0100] The above embodiments are illustrative of the present application, not restrictive thereof. Any simply transformed solution of the present application falls within the protection scope of the present application.

Claims

1. A biochemical analysis device, characterized in that, It includes an analysis chamber assembly (1), a telescopic sampling mechanism (2), a transfer mechanism (3), an addition mechanism (4), an incubation and detection mechanism (5), and a controller (9) installed inside the analysis chamber assembly (1); The analysis chamber assembly (1) includes a chamber body (11), a chamber door (12) movably installed at the front end of the chamber body (11), and a connection structure (13) installed on the chamber body (11) and the chamber door (12); The telescopic sampling mechanism (2) includes an inlet and outlet assembly (21) installed on the bottom surface of the inner cavity of the chamber body (11), a sample tray group (22) movably installed on the inlet and outlet assembly (21), a lateral movement assembly (23) installed on the chamber body (11) and the sample tray group (22), and a conveying assembly (24) installed on the inlet and outlet assembly (21) for conveying the test tubes on the sample tray group (22) to the transfer mechanism (3); The transfer mechanism (3) includes a first electric rotating disk (31) installed inside the chamber body (11), a first test tube clamping assembly (32) installed on the first electric rotating disk (31), a first lifting power source (33) located between the telescopic sampling mechanism (2) and the first electric rotating disk (31), and a first lifting assembly (34) installed inside the chamber body (11) beside the first electric rotating disk (31). The first lifting assembly (34) is used to drive the first test tube clamping assembly (32) to move up and down, and the first lifting power source (33) is used to lift the first test tube clamping assembly (32); The addition mechanism (4) includes a second electric rotating disk (41) installed inside the chamber body (11), a second test tube clamping assembly (42) installed on the second electric rotating disk (41), a reagent addition assembly (43) installed inside the chamber body (11) beside the second electric rotating disk (41), and a dilution assembly (44) installed inside the chamber body (11); The incubation and detection mechanism (5) includes a third electric rotating disk (51) installed inside the chamber body (11), a third test tube clamping assembly (52) installed on the third electric rotating disk (51), and a detection assembly (53) installed inside the chamber body (11) beside the third electric rotating disk (51); The first test tube clamping assembly (32) includes a mounting post (321) installed on the first electric rotating disk (31), a test tube clamping block (322) slidably installed on the mounting post (321) at equal angles, and a locking structure (36) installed on the test tube clamping block (322); The first lifting power source (33) can push the test tube clamping block (322) to rise; The second test tube clamping assembly (42) and the third test tube clamping assembly (52) are provided with an unlocking structure (6) corresponding to the locking structure (36); The test tube clamping block (322) is formed by splicing two identical test tube clamping plates (3221) up and down, and the test tube clamping block (322) is provided with a semi-circular card slot (3222) corresponding to the test tube; The locking structure (36) includes a sliding transverse groove (361) provided on the test tube clamping plate (3221), spring semi-holes (362) located at both ends of the sliding transverse groove (361), a sliding avoidance groove (363) perpendicular to the sliding transverse groove (361), a control groove (364) communicating with the middle position of the sliding transverse groove (361) and perpendicular to the sliding transverse groove (361), a control member (365) movably installed in the control groove (364), an unlocking groove (366) penetrating through the test tube clamping plate (3221) and communicating with the control groove (364), a spring (367) installed in the spring semi-hole (362), a U-shaped clamping plate (368) slidably installed in the sliding transverse groove (361) and the sliding avoidance groove (363), and a mating clamping groove (369) provided on the U-shaped clamping plate 368; The structures of the second test tube clamping assembly (42) and the third test tube clamping assembly (52) are the same, and both include a rotating central column (421), a rotating disc (422) installed on the rotating central column (421), and unlocking structures (6) equidistantly installed on the rotating disc (422); An expansion and contraction control assembly (7) for driving the unlocking structure (6) to move is installed in the cabinet body (11).

2. The biochemical analysis device according to claim 1, characterized in that The connection structure (13) includes an installation opening (131) provided on the cabinet body (11), a cabinet door hole (132) provided on the installation opening (131), connection shafts (133) installed at both ends of the cabinet door (12) corresponding to the installation opening (131), and a permanent magnet (134) installed on the cabinet body (11) corresponding to the cabinet door (12); The cabinet door (12) is made of a magnetically conductive material, and a sealing strip (121) is installed on the side surface of the cabinet door (12); A pull-down electromagnet (331) is installed on the top of the first lifting power source (33).

3. The biochemical analysis device according to claim 1, wherein The access component (21) includes a sliding seat (211) installed on the bottom surface of the inner cavity of the cabinet body (11), a T-shaped slider (212) slidably installed on the sliding seat (211), a power support (213) installed in the cabinet body (11), an access power source (214) installed on the power support (213), and a power transmission wheel (215) installed on the access power source (214); The access power source (214) drives the power transmission wheel (215) to rotate, the power transmission wheel (215) drives the T-shaped slider (212) to move, and the T-shaped slider (212) drives the sample tray group (22) to move; A transverse guide block (216) is installed on the T-shaped slider (212).

4. The biochemical analysis device according to claim 3, wherein, The sample tray group (22) includes a sampling tray (221) movably installed on the T-shaped slider (212), a plurality of test tube seats (222) slidably installed on the sampling tray (221) at equal intervals, and test tube placement holes (223) provided on the test tube seats (222) at equal intervals; An avoidance groove (217) is provided on the T-shaped slider (212), and the bottom surface of the test tube seat (222) contacts the conveying component (24) through the avoidance groove (217); The sample feeding tray (221) is provided with a slide groove (224), the test tube holder (222) is provided with a limit slider (225) corresponding to the slide groove (224), a connecting magnet (226) is installed on the test tube holder (222), and the sample feeding tray (221) is made of a magnetic conductive material; The lateral movement assembly (23) is mounted on the sample injection tray (221) and the chamber body (11); a guide groove (228) adapted to the lateral guide block (216) is provided at the bottom of the sample injection tray (221).

5. The biochemical analysis device according to claim 4, characterized in that The lateral movement assembly (23) comprises a rack (231) mounted on the side of the sample injection plate (221), a lateral power source (232) mounted in the chamber (11), and a lateral gear (233) mounted on the lateral power source (232) and meshing with the rack (231); The conveying assembly (24) comprises a conveying electric cylinder (241) installed in the warehouse body (11), an L-shaped plate (242) installed on the conveying electric cylinder (241), a conveying power source (243) installed on the L-shaped plate (242), a connecting shaft (244) installed on the conveying power source (243), and a conveying wheel (245) installed on the connecting shaft (244) and in contact with the bottom surface of the test tube holder (222); the T-shaped slide block (212) and the slide seat (211) are both provided with a waist-shaped hole (227) corresponding to the connecting shaft (244); and the T-shaped slide block (212) is provided with an avoidance slot hole (229) corresponding to the conveying wheel (245).

6. The biochemical analysis device according to claim 1, wherein The first electric rotating disk (31), the second electric rotating disk (41) and the third electric rotating disk (51) have the same structure; The minimum distance between the first test tube clamping assembly (32) and the bottom of the chamber body (11) is greater than the minimum distance between the second test tube clamping assembly (42) and the bottom of the chamber body (11), and the second test tube clamping assembly (42) and the third test tube clamping assembly (52) are installed at the same height.

7. The biochemical analysis device according to claim 1, characterized in that, The rotating disk (422) is provided with a mounting groove (4221) and a movable sliding groove (4222); The unlocking structure (6) comprises a reset test tube holder (61) slidably mounted in the mounting groove (4221), a reset slider (62) mounted at the bottom of the reset test tube holder (61) and corresponding to the movable sliding groove (4222), a reset spring (63) mounted in the movable sliding groove (4222) and corresponding to the reset slider (62), a control magnet (64) mounted in the mounting groove (4221) and located at the bottom of the reset test tube holder (61), an elastic unlocking structure (65) mounted on the reset test tube holder (61), a sealing plate (66) mounted on the rotating disk (422) and in contact with the top surface of the reset test tube holder (61), and a test tube receiving ring column (67) arranged on the reset test tube holder (61); The telescopic control assembly (7) comprises a mounting frame (71) mounted in the bin body (11) and a control electromagnet (72) mounted in the mounting frame (71).

8. The biochemical analysis device according to claim 1, characterized in that A temperature control component (8) is installed on the silo body (11). The temperature control component (8) includes a constant temperature and humidity machine (81) installed on the outer top of the silo body (11), a connecting pipe (82) arranged at the air outlet of the constant temperature and humidity machine (81), a temperature sensor (83) and a humidity sensor (84) arranged inside the silo body (11), and one end of the connecting pipe (82) is communicated with the inside of the silo body (11).

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