Sample preparation device for infection prevention and control

Abstract

The invention relates to the technical field of infection prevention and control, and provides an infection prevention and control sample preparation device which comprises a shell, an extraction assembly, a cooling and liquid supplementing assembly, a centrifugal assembly, a top cover assembly and two placement assemblies, the two placement assemblies are assembled on one side of the shell in a sliding mode, and the placement assemblies are suitable for placement and extraction of test tubes; the extraction assembly is installed in the middle of the shell and suitable for auxiliary movement of the test tubes, full-automatic operation from placing, processing to extraction of the test tubes is achieved through arrangement of structures such as a scanning camera, precise positioning and counting of the scanning camera and precise cooperation of all the assemblies, the whole process is efficient and accurate, and the efficiency is high. According to the technical scheme, manual errors are greatly reduced, the experiment time is greatly shortened, the reliability and repeatability of experiment results are improved, and by means of the technical scheme, the preparation efficiency and the use accuracy in the prior art are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of infection prevention and control, and specifically, to a sample preparation device for infection prevention and control. Background Art

[0002] Currently, sample preparation devices for infection prevention and control refer to specialized equipment used to process and prepare biological samples for subsequent testing and analysis.

[0003] The sample preparation devices for infection prevention and control in the existing technology have exposed many limitations in practical applications. They have a low degree of automation and rely heavily on manual operations, which not only increases the burden on staff, but also reduces overall work efficiency and accuracy. Due to the lack of advanced intelligent technology, these devices are unable to identify and locate test tubes, and often require manual assistance for verification, which undoubtedly increases the difficulty of operation and the possibility of errors. In terms of protection mechanisms, the existing technology does not provide sufficient safety protection for operators, and it is difficult to effectively prevent the spread of harmful particles, threatening the health of experimenters. At the same time, the clamping and protection of test tubes are relatively rough, and the risk of test tube breakage or sample contamination is high. The single function is also a major drawback of old devices. They can often only complete a certain link of sample preparation, such as centrifugation, cooling or rehydration, and multiple devices need to work together to complete the entire preparation process. This not only increases the cost of equipment investment, but also takes up valuable laboratory space. Summary of the invention

[0004] The present invention provides a sample preparation device for infection prevention and control, which solves the problems of improving preparation efficiency and use accuracy in the related art.

[0005] The technical solution of the present invention is as follows: A sample preparation device for infection prevention and control, comprising a shell, an extraction component, a cooling and fluid replacement component, a centrifugal component, a top cover component and two placement components, the two placement components are slidably assembled on one side of the shell, the placement component is suitable for placing and extracting test tubes, the extraction component is installed in the middle of the shell, the extraction component is suitable for auxiliary movement of test tubes, the cooling and fluid replacement component is installed inside the shell, the cooling and fluid replacement component is suitable for cooling and fluid replacement of test tubes, the centrifugal component is installed on the other side of the shell, the centrifugal component is suitable for centrifuging test tubes, the top cover component is installed on the top of the shell, and the top cover component is suitable for sealing the cooling and fluid replacement component and the centrifugal component; One side of the shell is movably hinged with two symmetrically arranged opening and closing doors, the two opening and closing doors correspond to the two placement components, a controller is installed between the two opening and closing doors, and a scanning connection frame is fixedly connected to the inside of the shell, and a scanning camera is installed on the scanning connection frame.

[0006] As a preferred solution of the present invention, the placement component includes a limiting sliding plate and a bottom support plate, the limiting sliding plate is slidably assembled inside the shell, the bottom of the limiting sliding plate is fixedly connected to the bottom support plate, the inner wall of the limiting sliding plate is fixedly connected to the placement plate, the interior of the placement plate is slidably assembled with a plurality of sliding clamps evenly distributed around the circumference, a spring is commonly connected between the sliding clamp and the placement plate, and both ends of the sliding clamp are fixedly connected to connecting blocks.

[0007] As a preferred solution of the present invention, the extraction component includes a rotating motor, a first cylinder, a second cylinder and a first screw motor. The rotating motor is installed in the middle of the outer shell, and a rotating shaft is installed at the output end of the rotating motor. The first cylinder is installed at one end of the rotating shaft, and a first sliding shaft is installed at the output end of the first cylinder. The second cylinder is installed at one end of the first sliding shaft, and a second sliding shaft is installed at the output end of the second cylinder. The first screw motor is installed on one side of the second sliding shaft, and a bidirectional screw is installed at the output end of the first screw motor. Two symmetrically arranged clamping plates are provided on the outer peripheral surface of the bidirectional screw.

[0008] As a preferred solution of the present invention, the cooling and fluid replenishing component includes a cooling base, a third cylinder, a liquid inlet pipe and a liquid outlet pipe, the cooling base is fixedly connected to the inside of the outer shell, the third cylinder is installed in the inside of the cooling base, the output end of the third cylinder is installed with a third sliding shaft, the top of the third sliding shaft is fixedly connected with a cooling frame, and the liquid inlet pipe and the liquid outlet pipe are fixedly connected to one side of the cooling frame.

[0009] As a preferred solution of the present invention, the centrifugal assembly includes a rotating motor, a second screw motor, a first hinged rod and a second hinged rod. The rotating motor is installed inside the outer shell, and a rotating shaft is installed at the output end of the rotating motor. The top of the rotating shaft is fixedly connected to a centrifugal frame, and the second screw motor is installed inside the centrifugal frame. A transmission screw is installed at the output end of the second screw motor, and a sliding frame is fixedly sleeved on the outer circumference of the transmission screw. The second hinged rod is movably hinged on the outer circumference of the centrifugal frame, and the first hinged rod is movably hinged on the outer circumference of the sliding frame. The first hinged rod and the second hinged rod are hinged to each other, and one end of the second hinged rod is fixedly connected to a fixed frame.

[0010] As a preferred scheme of the present invention, the top cover assembly includes a fourth cylinder, a fluid infusion top cover and a centrifugal top cover, the fourth cylinder is installed on one side of the outer shell, the output end of the fourth cylinder is installed with a fourth sliding shaft, the fluid infusion top cover and the centrifugal top cover are fixedly connected to one end of the fourth sliding shaft, one side of the fluid infusion top cover is fixedly connected with a fluid infusion pipeline, the bottom of the fluid infusion top cover is fixedly connected with a plurality of inner groove frames evenly distributed around the circumference, the interiors of the inner groove frames are respectively installed with telescopes and fluid infusion nozzles, the output end of the telescope is installed with a telescopic shaft, one end of the telescopic shaft is installed with a detection head, and the bottom of the centrifugal top cover is fixedly connected with a sealing cover.

[0011] As a preferred solution of the present invention, the sliding clamps are installed inside the centrifugal frame and the cooling base.

[0012] As a preferred solution of the present invention, two right-angled limiting grooves are provided inside the shell, and the two placement components are respectively slidably assembled inside the two limiting grooves. A limiting sliding groove is provided inside the centrifugal frame, and the sliding frame is slidably assembled inside the limiting sliding groove.

[0013] The working principle and beneficial effects of the present invention are: 1. The present invention realizes the fully automated operation of test tubes from placement, processing to extraction through the setting of structures such as scanning cameras, precise positioning and counting of scanning cameras, and precise coordination of various components. The whole process is efficient and accurate, which greatly reduces human errors and experimental time, and improves the reliability and repeatability of experimental results.

[0014] 2. The present invention ensures the stability and accuracy of the test tube placement through the arrangement of the limit sliding plate, the bottom support plate and other structures, and the close combination of the limit sliding plate and the limit groove. The auxiliary support design of the bottom support plate enhances the stability of the entire placement assembly. The ingenious combination of the sliding clamp block and the spring not only achieves a firm clamping of the test tube, but also effectively avoids damage to the test tube, thereby improving the safety and reliability of the test tube placement.

[0015] 3. The present invention realizes precise positioning and rapid extraction of test tubes by setting up structures such as a rotating motor and a bidirectional screw rod, and can flexibly adjust the position and angle of the clamping plate to meet the extraction requirements of different test tubes by rotating the rotating motor, adjusting the bidirectional screw rod and the first sliding shaft.

[0016] 4. The present invention realizes a close fit between the refilling top cover and the cooling base through the arrangement of the top cover assembly, the detection head and other structures, and the precise control of the top cover assembly. The coordination of the telescope and the detection head makes the detection of the liquid concentration inside the test tube more accurate. The circulating cooling system of the cooling frame ensures the constant temperature of the cooling water. The refilling nozzle replenishes the liquid on demand, thereby improving the scientificity and accuracy of the test tube processing.

[0017] 5. The present invention realizes flexible adjustment of the test tube angle through the arrangement of the second screw motor, the first hinged rod and other structures, and the design of the screw motor, the first hinged rod and the second hinged rod, thereby providing optimal conditions for centrifugal separation. The stable drive of the rotating motor enables the centrifuge frame to rotate at a uniform speed, ensuring the consistency and reliability of the centrifugal effect. The entire centrifugal process has a high degree of automation and is easy to operate, which greatly improves the efficiency and quality of centrifugal separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the housing of the present invention; Figure 3 This is a schematic diagram of the overall structure of the placement assembly of the present invention; Figure 4 This is a schematic diagram of the overall structure of the sliding clamp block of the present invention; Figure 5 This is a schematic diagram of the overall structure of the extraction component of the present invention; Figure 6 It is a schematic diagram of the transmission structure of the clamping plate of the present invention; Figure 7 This is a schematic diagram of the overall structure of the cooling and fluid replenishing component of the present invention; Figure 8 This is a side view of the overall structure of the cooling and fluid-replenishing assembly of the present invention; Fig. 9 It is a schematic diagram of the overall structure of the centrifugal assembly of the present invention; Fig.10 It is a bottom view of the overall structure of the centrifugal assembly of the present invention; Fig.11 It is a schematic diagram of the overall structure of the top cover assembly of the present invention; Fig.12 It is a schematic diagram of the internal structure of the fluid infusion top cover of the present invention.

[0020] In the figure: 10, housing; 101, opening and closing door; 102, controller; 103, scanning connection frame; 104, scanning camera; 1, placement component; 11, limited sliding plate; 12, placement plate; 13, bottom support plate; 14, sliding clamp block; 141, connection block; 142, spring; 2. Extraction assembly; 21. Rotation motor; 211. Rotation shaft; 22. First cylinder; 221. First sliding shaft; 23. Second cylinder; 231. Second sliding shaft; 24. First screw motor; 241. Bidirectional screw; 242. Clamping plate; 3. Cooling and rehydrating assembly; 31. Cooling base; 32. Third cylinder; 321. Third sliding shaft; 322. Cooling frame; 323. Liquid inlet pipe; 324. Liquid outlet pipe; 4. Centrifugal assembly; 41. Rotating motor; 411. Rotating shaft; 412. Centrifugal frame; 42. Second screw motor; 421. Transmission screw; 43. Sliding frame; 431. First hinge rod; 432. Second hinge rod; 433. Fixed frame; 5. Top cover assembly; 51. Fourth cylinder; 511. Fourth sliding shaft; 52. Liquid replenishing top cover; 521. Liquid replenishing pipeline; 522. Inner groove frame; 523. Telescopic device; 524. Telescopic shaft; 525. Detection head; 526. Liquid replenishing nozzle; 53. Centrifugal top cover; 531. Sealing cover. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1 like Figure 1 to Figure 12 As shown, a sample preparation device for infection prevention and control includes a shell 10, an extraction component 2, a cooling and fluid replenishment component 3, a centrifugal component 4, a top cover component 5 and two placement components 1. The two placement components 1 are slidably assembled on one side of the shell 10, the placement component 1 is suitable for placing and extracting a test tube, the extraction component 2 is installed in the middle of the shell 10, the extraction component 2 is suitable for auxiliary movement of the test tube, the cooling and fluid replenishment component 3 is installed inside the shell 10, the cooling and fluid replenishment component 3 is suitable for cooling and fluid replenishment of the test tube, the centrifugal component 4 is installed on the other side of the shell 10, the centrifugal component 4 is suitable for centrifuging the test tube, and the top cover component 5 is installed on the top of the shell 10, and the top cover component 5 is suitable for sealing the cooling and fluid replenishment component 4 and the centrifugal component 4; Two symmetrically arranged opening and closing doors 101 are movably hinged on one side of the shell 10, and the two opening and closing doors 101 correspond to the two placement components 1. A controller 102 is installed between the two opening and closing doors 101, and a scanning connection frame 103 is fixedly connected to the inside of the shell 10, and a scanning camera 104 is installed on the scanning connection frame 103. Through the setting of structures such as the scanning camera 104, through the precise positioning and counting of the scanning camera 104, combined with the precise coordination of various components, the full automation of the placement, processing and extraction of the test tube is realized, and the whole process is efficient and accurate, which greatly reduces human errors and experimental time, and improves the reliability and repeatability of the experimental results.

[0023] like Figure 1 to Figure 10 As shown, two right-angled limiting grooves are opened inside the shell 10, and the two placement components 1 are slidably assembled inside the two limiting grooves respectively. A limiting sliding groove is opened inside the centrifugal frame 412, and the sliding frame 43 is slidably assembled inside the limiting sliding groove.

[0024] In this embodiment, when the device is used, the test tube after sampling is placed in one of the placement components 1, and then the opening and closing door 101 is opened, and the placement component 1 with the test tube is slidably assembled on the bottom of the scanning camera 104, and the empty placement component 1 is slidably assembled on the other side of the shell 10. When the placement component 1 is slidably assembled on the bottom of the scanning camera 104, the camera immediately starts the intelligent recognition function, and accurately recognizes the position, shape and label information of the test tube through high-definition image capture technology. The controller 102 receives the image data transmitted by the camera, and uses advanced image processing algorithms to quickly locate and classify the test tube, providing accurate spatial coordinate information for subsequent operations. Then, through the controller 102 (the controller can adjust the focus of the scanning camera in real time), the controller 102 can automatically identify the position, shape and label information of the test tube. The device is controlled and operated by adjusting the distance and angle parameters to ensure that a clear image can be obtained at any position, thereby improving the accuracy and efficiency of scanning. When the device is operated, the sample liquid in the test tube is monitored and replenished by the cooling and replenishing component 3 through the extraction component 2. After the replenishment is completed, the test tube is sent to the centrifugal component 4 for centrifugal separation through the extraction component 2. During the centrifugation and cooling and replenishing process, the top cover component 5 is lowered to seal and assist in detection and replenishment. After the centrifugation is completed, the centrifuged test tube is sent to the placement component 1 on the other side of the shell 10 through the extraction component 2. After the placement is completed, the controller 102 is used to prompt the staff to open the opening and closing door 101, and the extraction and placement component 1 can complete the use of the device.

[0025] Example 2 like Figure 1~Figure 4As shown, the placement assembly 1 includes a limited sliding plate 11 and a bottom support plate 13. The limited sliding plate 11 is slidably assembled inside the housing 10. The bottom of the limited sliding plate 11 is fixedly connected to the bottom support plate 13. The inner wall of the limited sliding plate 11 is fixedly connected to the placement plate 12. The interior of the placement plate 12 is slidably assembled with a plurality of sliding clamps 14 evenly distributed around the circumference. A spring 142 is commonly connected between the sliding clamps 14 and the placement plate 12. Both ends of the sliding clamps 14 are fixedly connected to connecting blocks 141. Through the arrangement of the limited sliding plate 11, the bottom support plate 13 and other structures, and through the close combination of the limited sliding plate 11 and the limited groove, the stability and accuracy of the test tube placement are ensured. The auxiliary support design of the bottom support plate 13 enhances the stability of the entire placement assembly 1. The ingenious combination of the sliding clamps 14 and the springs 142 not only realizes the firm clamping of the test tube, but also effectively avoids the damage of the test tube, thereby improving the safety and reliability of the test tube placement.

[0026] In this embodiment, when the placement component 1 is in use, the sliding limit plate is slidably inserted into the interior of the limit groove, and the placement of the sliding limit plate is limited and fixed by the limit groove. When the placement component 1 is in use, the bottom support plate 13 can assist in the placement of the placement component 1. When the test tube is placed in the placement plate 12, it is placed between the two sliding clamps 14. The connecting block 141 on the sliding clamp 14 is in contact with the test tube, and the spring 142 provided on the sliding clamp 14 can effectively protect the test tube during the process of clamping the test tube.

[0027] Example 3 like Figure 1 to Figure 6 As shown, the extraction component 2 includes a rotating motor 21, a first cylinder 22, a second cylinder 23 and a first screw motor 24. The rotating motor 21 is installed in the middle of the housing 10. The output end of the rotating motor 21 is installed with a rotating shaft 211. The first cylinder 22 is installed at one end of the rotating shaft 211. The output end of the first cylinder 22 is installed with a first sliding shaft 221. The second cylinder 23 is installed at one end of the first sliding shaft 221. The output end of the second cylinder 23 is installed with a second sliding shaft 231. The first screw motor 24 is installed On one side of the second sliding shaft 231, a bidirectional screw 241 is installed at the output end of the first screw motor 24, and two symmetrically arranged clamping plates 242 are movably sleeved on the outer peripheral surface of the bidirectional screw 241. By setting the rotating motor 21, the bidirectional screw 241 and other structures, the extraction is achieved through the rotation of the rotating motor 21, the adjustment of the bidirectional screw 241 and the first sliding shaft 221, so as to realize the precise positioning and rapid extraction of the test tube, and the position and angle of the clamping plate 242 can be flexibly adjusted to meet the extraction requirements of different test tubes.

[0028] In this embodiment, when the extraction component 2 is used, the rotation motor 21 is turned on to rotate through the rotation shaft 211, so that the angle of the extraction component 2 is rotated. After rotating to the desired position, the first cylinder 22 is turned on according to the position of the test tube to be extracted. The opening of the first cylinder 22 causes the first sliding shaft 221 to slide. The sliding of the first sliding shaft 221 causes the clamping plate 242 to move to the top of the test tube to be extracted. At this time, the second cylinder 23 is turned on, and the opening of the second cylinder 23 causes the second sliding shaft 231 to slide. The sliding of the second sliding shaft 231 causes the clamping plate 242 to move to both sides of the test tube. At this time, the first screw motor 24 is turned on. The turning on of the first screw motor 24 causes the bidirectional screw 241 to rotate. During the rotation of the bidirectional screw 241, the two screws in opposite directions on it drive the two clamping plates 242 to move toward the test tube at the same time to clamp the test tube. After the clamping is completed, the test tube is moved and placed by starting the second cylinder 23, the first cylinder 22 and the rotating motor 21 on the extraction component 2.

[0029] Example 4 like Figure 1 to Figure 8 As shown, the cooling and rehydration component 3 includes a cooling base 31, a third cylinder 32, a liquid inlet pipe 323 and a liquid outlet pipe 324. The cooling base 31 is fixedly connected to the inside of the shell 10, and the third cylinder 32 is installed in the inside of the cooling base 31. The output end of the third cylinder 32 is installed with a third sliding shaft 321, and the top of the third sliding shaft 321 is fixedly connected with a cooling frame 322, and the liquid inlet pipe 323 and the liquid outlet pipe 324 are fixedly connected to one side of the cooling frame 322. Through the arrangement of structures such as the top cover component 5 and the detection head 525, and through the precise control of the top cover component 5, the liquid replenishment top cover 52 is closely fitted with the cooling base 31, and the cooperation of the telescope 523 and the detection head 525 makes the detection of the liquid concentration inside the test tube more accurate. The circulating cooling system of the cooling frame 322 ensures the constant temperature of the cooling water, and the liquid replenishment nozzle 526 replenishes liquid on demand, thereby improving the scientificity and accuracy of the test tube processing.

[0030] like Figure 1 to Figure 12 As shown, the top cover assembly 5 includes a fourth cylinder 51, a fluid infusion top cover 52 and a centrifugal top cover 53. The fourth cylinder 51 is installed on one side of the outer shell 10. The output end of the fourth cylinder 51 is installed with a fourth sliding shaft 511. The fluid infusion top cover 52 and the centrifugal top cover 53 are fixedly connected to one end of the fourth sliding shaft 511 at the same time. One side of the fluid infusion top cover 52 is fixedly connected with a fluid infusion pipeline 521. The bottom of the fluid infusion top cover 52 is fixedly connected with a plurality of inner groove frames 522 evenly distributed around the circumference. The interior of the inner groove frames 522 are respectively installed with telescopic devices 523 and fluid infusion nozzles 526. The output end of the telescopic device 523 is installed with a telescopic shaft 524. One end of the telescopic shaft 524 is installed with a detection head 525. The bottom of the centrifugal top cover 53 is fixedly connected with a sealing cover 531.

[0031] In this embodiment, when the cooling and rehydrating component 3 is in use, the test tube is placed inside the connecting block 141 which is the same as that in the placing component 1 and is arranged in the cooling base 31. After the placement is completed, the fourth sliding shaft 511 slides by sliding the fourth cylinder 51 of the top cover component 5, so that the rehydrating top cover 52 fits with the cooling base 31 on the cooling and rehydrating component 3. At this time, the telescopic device 523 in the top cover component 5 is started first, and the start of the telescopic device 523 causes the telescopic shaft 524 to move. The movement of the telescopic shaft 524 causes the detection head 525 to extend into the interior of the test tube, and the inside of the test tube is checked. The liquid concentration is detected. After the detection is completed, the third cylinder 32 in the cooling and rehydration component 3 is turned on to make the third sliding shaft 321 slide. The sliding of the third sliding shaft 321 makes the cooling frame 322 move to the bottom of the test tube to cool the test tube. The liquid inside the cooling frame 322 is assisted by the liquid inlet pipe 323, the liquid outlet pipe 324 and the external water pump to circulate the cooling water to ensure that the temperature of the cooling water is always at the required cooling temperature. In the process of cooling the test tube, the detection head 525 is used to detect and the corresponding test tube is rehydrated through the rehydration nozzle 526 as needed.

[0032] Example 5 like Figure 1 to Figure 10 As shown, the centrifugal assembly 4 includes a rotating motor 41, a second screw motor 42, a first hinged rod 431 and a second hinged rod 432. The rotating motor 41 is installed inside the housing 10. The output end of the rotating motor 41 is installed with a rotating shaft 411. The top of the rotating shaft 411 is fixedly connected with a centrifugal frame 412. The second screw motor 42 is installed inside the centrifugal frame 412. The output end of the second screw motor 42 is installed with a transmission screw 421. The outer peripheral surface of the transmission screw 421 is fixedly sleeved with a sliding frame 43. The second hinged rod 432 is movably hinged on the outer peripheral surface of the centrifugal frame 412. The first hinged rod 431 is movably hinged on the sliding frame On the outer peripheral surface of the frame 43, the first hinge rod 431 and the second hinge rod 432 are hinged to each other, and one end of the second hinge rod 432 is fixedly connected to the fixed frame 433. Through the arrangement of the second screw motor 42, the first hinge rod 431 and other structures, and through the design of the screw motor and the first hinge rod 431 and the second hinge rod 432, flexible adjustment of the test tube angle is achieved, providing optimal conditions for centrifugal separation. The stable drive of the rotating motor 41 enables the centrifugal frame 412 to rotate at a uniform speed, ensuring the consistency and reliability of the centrifugal effect. The entire centrifugal process has a high degree of automation and is easy to operate, which greatly improves the efficiency and quality of centrifugal separation.

[0033] like Figure 1 to Figure 10 As shown, sliding clamps 14 are installed inside the centrifugal frame 412 and the cooling base 31 .

[0034] In this embodiment, when the test tube is sent to the centrifugal assembly 4, the second hinged rod 432 is in a flat state, and the test tube is placed inside the fixed frame 433. The interior of the fixed frame 433 is provided with a connecting block 141 that is the same as the placement assembly 1, and the connecting block 141 is fitted with the outer wall of the test tube. After the placement is completed, the second screw motor 42 is turned on, and the rotation of the second screw motor 42 causes the transmission screw 421 to rotate, and the rotation of the transmission screw 421 causes the sliding frame 43 to slide. In the process of sliding the sliding frame 43, the second hinged rod 432 is angularly offset through the setting of the first hinged rod 431 and the second hinged rod 432. During the offset process, the test tube in the fixed frame 433 is angularly offset. After the angular offset is completed, the rotating motor 41 is turned on, and the rotation of the rotating motor 41 causes the rotating shaft 411 to rotate, and the rotation of the rotating shaft 411 causes the centrifugal frame 412 to rotate. The rotation of the centrifugal frame 412 centrifuges the sample liquid inside the test tube.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sample preparation device for infection prevention and control, comprising a housing (10), an extraction component (2), a cooling and rehydration component (3), a centrifugal component (4), a top cover component (5) and two placement components (1), characterized in that: The two placement components (1) are slidably assembled on one side of the shell (10); the placement component (1) is suitable for placing and extracting a test tube; the extraction component (2) is installed in the middle of the shell (10); the extraction component (2) is suitable for assisting the movement of the test tube; the cooling and rehydration component (3) is installed inside the shell (10); the cooling and rehydration component (3) is suitable for cooling and rehydrating a test tube; the centrifuge component (4) is installed on the other side of the shell (10); the centrifuge component (4) is suitable for centrifuging a test tube; the top cover component (5) is installed on the top of the shell (10); the top cover component (5) is suitable for sealing the cooling and rehydration component (4) and the centrifuge component (4); Two symmetrically arranged opening and closing doors (101) are movably hinged on one side of the housing (10), the two opening and closing doors (101) correspond to the two placement components (1), a controller (102) is installed between the two opening and closing doors (101), a scanning connection frame (103) is fixedly connected to the inside of the housing (10), and a scanning camera (104) is installed on the scanning connection frame (103).

2. A sample preparation device for infection prevention and control according to claim 1, characterized in that: The placement component (1) comprises a limiting sliding plate (11) and a bottom supporting plate (13); the limiting sliding plate (11) is slidably mounted inside the housing (10); the bottom of the limiting sliding plate (11) is fixedly connected to the bottom supporting plate (13); the inner wall of the limiting sliding plate (11) is fixedly connected to a placement plate (12); the interior of the placement plate (12) is slidably mounted with a plurality of sliding clamps (14) evenly distributed around the circumference; a spring (142) is commonly connected between the sliding clamps (14) and the placement plate (12); and both ends of the sliding clamps (14) are fixedly connected to connection blocks (141).

3. A sample preparation device for infection prevention and control according to claim 1, characterized in that: The extraction assembly (2) comprises a rotating motor (21), a first cylinder (22), a second cylinder (23) and a first screw motor (24); the rotating motor (21) is mounted in the middle of the housing (10); a rotating shaft (211) is mounted on the output end of the rotating motor (21); the first cylinder (22) is mounted on one end of the rotating shaft (211); a first sliding shaft (221) is mounted on the output end of the first cylinder (22); the second cylinder (23) is mounted on one end of the first sliding shaft (221); a second sliding shaft (231) is mounted on the output end of the second cylinder (23); the first screw motor (24) is mounted on one side of the second sliding shaft (231); a bidirectional screw (241) is mounted on the output end of the first screw motor (24); and two symmetrically arranged clamping plates (242) are movably sleeved on the outer circumference of the bidirectional screw (241).

4. A sample preparation device for infection prevention and control according to claim 2, characterized in that: The cooling and rehydrating component (3) comprises a cooling base (31), a third cylinder (32), a liquid inlet pipe (323) and a liquid outlet pipe (324); the cooling base (31) is fixedly connected to the inside of the housing (10); the third cylinder (32) is installed inside the cooling base (31); a third sliding shaft (321) is installed at the output end of the third cylinder (32); a cooling frame (322) is fixedly connected to the top of the third sliding shaft (321); and the liquid inlet pipe (323) and the liquid outlet pipe (324) are fixedly connected to one side of the cooling frame (322).

5. A sample preparation device for infection prevention and control according to claim 4, characterized in that: The centrifugal assembly (4) comprises a rotating motor (41), a second screw motor (42), a first hinged rod (431) and a second hinged rod (432); the rotating motor (41) is mounted inside the housing (10); a rotating shaft (411) is mounted on the output end of the rotating motor (41); a centrifugal frame (412) is fixedly connected to the top of the rotating shaft (411); the second screw motor (42) is mounted inside the centrifugal frame (412); a transmission screw (421) is mounted on the output end of the second screw motor (42); a sliding frame (43) is fixedly sleeved on the outer circumference of the transmission screw (421); the second hinged rod (432) is movably hinged on the outer circumference of the centrifugal frame (412); the first hinged rod (431) is movably hinged on the outer circumference of the sliding frame (43); the first hinged rod (431) and the second hinged rod (432) are hinged to each other; and one end of the second hinged rod (432) is fixedly connected to the fixed frame (433).

6. The sample preparation device for infection prevention and control according to claim 1, characterized in that: The top cover assembly (5) comprises a fourth cylinder (51), a liquid infusion top cover (52) and a centrifugal top cover (53); the fourth cylinder (51) is mounted on one side of the housing (10); a fourth sliding shaft (511) is mounted on the output end of the fourth cylinder (51); the liquid infusion top cover (52) and the centrifugal top cover (53) are simultaneously fixedly connected to one end of the fourth sliding shaft (511); a liquid infusion pipeline (521) is fixedly connected to one side of the liquid infusion top cover (52); a plurality of inner groove frames (522) evenly distributed around the circumference are fixedly connected to the bottom of the liquid infusion top cover (52); a telescopic device (523) and a liquid infusion nozzle (526) are respectively mounted inside the inner groove frames (522); a telescopic shaft (524) is mounted on the output end of the telescopic device (523); a detection head (525) is mounted on one end of the telescopic shaft (524); and a sealing cover (531) is fixedly connected to the bottom of the centrifugal top cover (53).

7. The sample preparation device for infection prevention and control according to claim 5, characterized in that: The sliding clamp block (14) is installed inside the centrifugal frame (412) and the cooling base (31).

8. The sample preparation device for infection prevention and control according to claim 5, characterized in that: The shell (10) has two right-angled limiting grooves disposed therein, and the two placement components (1) are respectively slidably assembled in the two limiting grooves. The centrifugal frame (412) has a limiting sliding groove disposed therein, and the sliding frame (43) is slidably assembled in the limiting sliding grooves.

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