Method and device for rapidly detecting forensic blood based on nanotechnology
By designing a rapid forensic blood testing device based on nanotechnology, the existing problems of long and inconvenient whole blood testing are solved, and fast, simple and efficient blood testing is achieved.
Patent Information
- Application Number
- CN202411546538.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-01-21
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the existing whole blood test, blood needs to be collected, stored and transported first, resulting in a long test time, insimplified and fast enough, and low efficiency.
A forensic blood rapid detection device based on nanotechnology is designed, including a blood detector, a nano-fluorescent probe body, a semi-through frame, a blood drawing syringe and an insertion mechanism. Through the collaborative work of these components, blood testing is achieved. rapid extraction and detection.
The device can improve the efficiency and accuracy of blood testing while shortening the testing time, reducing the tediousness of the testing steps and avoiding contamination caused by blood dripping.
Smart Images
Figure CN119334698A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of forensic blood testing devices, and in particular to a forensic blood rapid testing method and device based on nanotechnology. Background Art
[0002] Blood testing is one of the most common forensic evidence tests. It can provide relevant information about the test subject and provide important clues and basis for investigation and trial. Blood testing generally includes whole blood testing and subsequent blood component testing. Whole blood testing can assist forensic doctors in gaining a preliminary understanding of the test subject's physical condition and provide auxiliary judgment for subsequent component testing. In the whole blood testing process, nanotechnology blood testing devices are often used for testing.
[0003] At present, in the whole blood test process, the forensic doctor draws the testee's blood, stores it in a blood test tube, and then transfers it to a blood testing device. The blood is tested using a fluorescent probe made of nanomaterials. The nanomaterials are combined with blood molecules, and the blood molecules are detected and analyzed by emitting fluorescent signals of specific wavelengths. However, in actual use, whole blood testing requires collection, storage and transportation before testing. This process takes a lot of time, is not simple and fast enough, and is relatively inefficient.
[0004] To this end, the present invention proposes a forensic blood rapid detection method and device based on nanotechnology. Summary of the invention
[0005] The purpose of the present invention is to make up for the deficiencies of the prior art and to provide a forensic blood rapid detection method and device based on nanotechnology.
[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a forensic blood rapid detection method and device based on nanotechnology, comprising a blood tester, a nanofluorescent probe body is installed at the bottom end of the blood tester, and a semi-through frame is provided at the bottom of the nanofluorescent probe body, a first conducting port is bored at the top of the semi-through frame, a blood drawing syringe is provided inside the semi-through frame, and a connecting block is sleeved on the outer wall of the blood drawing syringe, connecting plates are fixedly connected at both ends of the semi-through frame, and the ends of a pair of connecting plates that are close to each other are respectively in contact with the left and right ends of the connecting block, an insertion mechanism is installed between the outer wall of the connecting block and the bottom end of the semi-through frame, a blood drawing mechanism is installed between the semi-through frame and the inner wall of the blood drawing syringe, a second conducting port is bored at the top of the blood drawing syringe, U-shaped plates are provided on the front and rear sides of the nanofluorescent probe body, and a pulling and opening and closing mechanism is installed between the bottom end of the U-shaped plate and the semi-through frame and the outer wall of the blood drawing syringe.
[0007] As a preferred scheme of the present invention, the plug-in mechanism includes a pair of movable plates, the bottom end of the semi-through frame is fixedly connected to the bottom frame, and the inside of the bottom frame is fixedly connected to a fixed partition, the outer wall of the fixed partition is embedded with a two-way telescopic rod, and the outer wall of the two-way telescopic rod is sleeved with a pair of springs, the two ends of the pair of springs are respectively fixedly connected to the inner wall of the bottom frame and the outer wall of the two-way telescopic rod, circular holes are drilled on the left and right inner walls of the bottom frame, and the left and right ends of the two-way telescopic rod pass through a pair of circular holes respectively and are fixedly connected to one end of a pair of movable plates that are close to each other, a pair of plug rods are fixedly connected to one end of a pair of movable plates that are close to each other, and a pair of sockets are drilled on one end of the connecting plate that is close to the movable plate, a pair of slots are drilled on the left and right ends of the connecting block, and one end of a pair of plug rods that is close to the connecting plate passes through the sockets and extends to the inside of the slots.
[0008] As a preferred scheme of the present invention, the blood drawing mechanism includes a push-pull rod slidably connected to a semi-through frame, a piston is slidably connected to the inside of the blood drawing syringe, and a movable rod is fixedly connected to the front end of the piston, a through hole is drilled on the inner wall of the blood drawing syringe, and the end of the movable rod away from the piston passes through the through hole and contacts with the rear end of the push-pull rod, a locking mechanism is installed between the opposite sides of the movable rod and the push-pull rod, a transmission lifting mechanism is installed between the left end of the push-pull rod and the outer wall of the nanofluorescent probe body, a rectangular through opening is drilled on the inner wall of the semi-through frame, and the end of the push-pull rod away from the movable rod passes through the rectangular through opening and is fixedly connected to a handle.
[0009] As a preferred solution of the present invention, the right end of the push-pull rod is fixedly connected to a thin rod, and the end of the thin rod away from the push-pull rod is fixedly connected to a slider, a sliding groove is drilled on the inner wall of the right end of the semi-through frame, and the slider is located inside the sliding groove and slidably connected thereto.
[0010] As a preferred scheme of the present invention, the transmission lifting mechanism includes a rotating rod rotatably connected between the inner walls of the semi-through frame, the outer wall of the rotating rod is sleeved with a first gear, the push-pull rod is fixedly connected to a rack at one end close to the first gear, and the first gear is meshed with the rack, the top of the rotating rod is fixedly connected to a threaded rod, and the outer wall of the threaded rod is sleeved with a lifting and moving block, the inner wall of the lifting and moving block is drilled with a threaded hole, and the lifting and moving block is threadedly connected to the threaded rod through the threaded hole, the outer wall of the nanofluorescent probe body is fixedly connected to a pair of auxiliary moving blocks, the top of the semi-through frame is fixedly connected to a pair of fixed rods, the inner walls of a pair of the auxiliary moving blocks are drilled with long through holes, and the auxiliary moving blocks are sleeved on the outer walls of the fixed rods through the long through holes, the rear end of the lifting and moving block is fixedly connected to a connecting rod, and the connecting rod is connected to the front end of the auxiliary moving block on one side by bolts, and the front and rear ends of a pair of the auxiliary moving blocks are respectively fixedly connected to the opposite sides of a pair of U-shaped plates.
[0011] As a preferred solution of the present invention, the pulling and opening and closing mechanism includes a pair of straight tubes fixedly connected to the top of the semi-through frame, the interiors of the pair of straight tubes are slidably connected with an extrusion plate, the bottom ends of the pair of U-shaped plates are bonded with T-shaped rods, and the tops of the pair of straight tubes are drilled with vertical movement through holes, and the bottom ends of the pair of T-shaped rods pass through the vertical movement through holes and are fixedly connected to the top of the extrusion plate, the top of the semi-through frame is drilled with a pair of accommodating openings, and the pair of accommodating openings are respectively located at the bottom of the pair of straight tubes, the bottom ends of the pair of straight tubes are fixedly connected with telescopic sleeves, and a pair of micro-electric telescopic rods are installed between the opposite sides of the telescopic sleeves and the straight tubes, and the top of the blood drawing syringe is fixed A pair of horizontal cylinders are connected, and the interiors of the pair of horizontal cylinders are slidably connected with movable circular plates, the top ends of the pair of horizontal cylinders are fixedly connected with connecting vertical tubes, and the bottom ends of the telescopic sleeves pass through the accommodating openings and are sleeved on the outer walls of the connecting vertical tubes, a pair of contacting sealing arc blocks are provided at the tops of the second conducting openings, and the top ends of the pair of sealing arc blocks are fixedly connected with connecting bent rods, transverse through holes are opened on the opposite sides of the pair of horizontal cylinders, and the ends of the pair of connecting bent rods that are away from each other pass through the transverse through holes and are fixedly connected to the movable circular plates, a reflective mechanism is installed between the outer walls of the pair of sealing arc blocks, and a deformation cleaning mechanism is installed between the first conducting opening and the straight cylinder located on the front side.
[0012] As a preferred scheme of the present invention, the reflective mechanism includes a circular plate located at the top of the sealing arc block, the inner wall of the circular plate is fixedly connected with a round-mouth fluorescent reflective film, and the top of the round-mouth fluorescent reflective film is fixedly connected with a pair of first single-sided magnet blocks, a pair of ends of the sealing arc blocks away from each other are fixedly connected with a pair of half-rack plates, two pairs of support plates are fixedly connected between the opposite sides of the circular plate and the blood drawing syringe, and the opposite sides of a pair of support plates are rotatably connected with second gears through bearings and rotating shafts, two pairs of the second gears are respectively located at the top of the two pairs of half-rack plates, and the second gears are meshed with the half-rack plates, and the opposite sides of a pair of the second gears are fixedly connected with second single-sided magnet blocks, the bottom ends of the first single-sided magnet block and the second single-sided magnet block are both magnetic ends, and the magnetic ends of the first single-sided magnet block and the second single-sided magnet block repel each other.
[0013] As a preferred solution of the present invention, the deformation cleaning mechanism includes a circular ring arranged on the top of the semi-through frame, a deformable airbag is fixedly connected to the inside of the circular ring, and a ring-shaped rag is bonded to the inner wall of the deformable airbag, the inner diameter of the ring-shaped rag matches the outer diameter of the bottom end of the nanofluorescent probe body, the deformable airbag is located inside the first conducting port, an air guide tube is fixedly connected between the top of the deformable airbag and the outer wall of the straight cylinder located on the front side, and a micro gas flow control valve is installed on the outer wall of the air guide tube.
[0014] As a preferred solution of the present invention, the engaging mechanism includes an elastic engaging block fixedly connected to the front end of the movable rod, a groove is formed at one end of the push-pull rod close to the movable rod, and the elastic engaging block engages with the groove.
[0015] In addition, the present invention also provides a forensic blood rapid detection method based on nanotechnology, comprising the following steps: S1. First, disinfect the entire blood testing device. After the disinfection is completed, a pair of movable plates are moved away from each other with the assistance of a two-way telescopic rod and a pair of springs, driving the two pairs of insertion rods to retract into the two pairs of insertion holes respectively, then the blood drawing syringe and the connecting block are taken and inserted into the semi-through frame, so that the elastic card block on the movable rod is inserted into the card slot, driving the push-pull rod and the movable rod to be connected and fixed, and the pair of movable plates are released. The pair of movable plates are moved toward each other with the assistance of the two-way telescopic rod and a pair of springs, driving the two pairs of insertion rods to be inserted into the two pairs of slots respectively, driving the connecting block and the blood drawing syringe to be installed and fixed with the semi-through frame, and then a pair of telescopic sleeves are extended downward under the push and extension of a pair of micro-electric telescopic rods, and are sleeved on the connecting vertical tube, so that the straight tube and the horizontal tube are kept conductive; S2. Next, insert the blood-drawing syringe into the tester, and pull the push-pull rod, the rack and the movable rod to move forward, driving the piston to move forward inside the blood-drawing syringe to draw blood. At the same time, the rack drives the first gear and the rotating rod to rotate, so that it drives the threaded rod to rotate, prompting the lifting and moving block to move downward, and driving the bottom end of the nano-fluorescent probe body to move downward through the connecting rod and the auxiliary moving block. The corresponding pair of U-shaped plates drives the extrusion plate to move downward, squeezing the air inside the pair of straight cylinders to flow downward, so that the gas inside the deformable airbag flows upward under the real-time monitoring and regulation of the micro gas flow control valve, enters the area above the straight cylinder for replenishment, drives the annular wiper to shrink, and makes the nano-fluorescent probe body quickly pass through the first conduction port, and the air inside the pair of straight cylinders flows downward into the pair of horizontal cylinders, squeezing the pair of moving circular plates and the connecting curved rod to move apart, driving the pair of sealing arc blocks to cancel the shielding of the second conduction port, so that the nano-fluorescent probe body passes through the second conduction port and extends into the blood-drawing syringe; S3, a pair of sealing arc blocks separate and drive two pairs of half rack plates to move apart, so that the two pairs of second gears rotate 180°, drive the two pairs of second single-sided magnet blocks to rotate 180°, so that the bottom ends, i.e., magnetic ends, of the two pairs of second single-sided magnet blocks correspond to the bottom ends, i.e., magnetic ends, of the pair of first single-sided magnet blocks, and use the magnetic repulsive force to drive the pair of first single-sided magnet blocks to move upward, and pull the circular fluorescent reflective film in the area to protrude upward to form a state similar to an inverted V shape, and then turn on the blood tester, the nano fluorescent probe body emits fluorescence to perform whole blood detection on the blood just drawn, and for the partially divergent fluorescence, the two inclined surfaces similar to the inverted V shape on the front and back sides of the top circular fluorescent reflective film continuously reflect the partially divergent fluorescence, so that the direction of the fluorescence is toward the lower side again, so as to be aggregated with the overall fluorescence for blood detection; S4. After the detection of the nano-fluorescent probe body is completed, the push-pull rod and the movable rod drive the piston to squeeze the blood inside the blood-drawing syringe and introduce it into the test tube, driving the threaded rod to rotate in the opposite direction, driving the bottom end of the nano-fluorescent probe body to move upward, causing a pair of U-shaped plates to move upward, driving the pressure plate to move upward, squeezing the air in the area above the straight tube to flow back into the deformable airbag, driving the annular wiper to return to its initial state, making the inner wall of the annular wiper contact with the bottom end of the nano-fluorescent probe body, and wiping and preliminarily cleaning the blood attached to the surface during the detection process.
[0016] Compared with the existing technology, the forensic blood rapid detection method and device based on nanotechnology has the following beneficial effects: 1. The present invention provides a plug-in mechanism and a snap-in mechanism, which can drive the connecting block and the semi-through frame as well as the push-pull rod and the movable rod to be installed, fixed, and disassembled, thereby driving the blood drawing syringe and the semi-through frame to be installed, fixed, and disassembled.
[0017] 2. The present invention, through the blood drawing mechanism and the transmission lifting mechanism, can synchronously drive the nano fluorescent probe body to move downward to the inside of the blood drawing syringe during blood drawing, so that the blood can be stored in the blood drawing syringe after the blood drawing is completed. The nano fluorescent probe body also moves synchronously to the inside of the blood drawing syringe to facilitate timely whole blood testing of the drawn blood, thereby reducing the cumbersome steps involved, shortening the testing time, making blood testing simpler and faster, and improving blood testing efficiency.
[0018] 3. The present invention, through the pull-out opening and closing mechanism and the deformation cleaning mechanism, can cancel the shielding and sealing of the first conductive port and the second conductive port during the downward movement of the bottom end of the nanofluorescent probe body, so that the nanofluorescent probe body can quickly pass through the first conductive port and the second conductive port into the blood drawing syringe for blood testing. At the same time, after the blood test is completed, the blood attached to the bottom surface of the nanofluorescent probe body can be wiped and preliminarily cleaned by the annular cloth in the deformation cleaning mechanism to prevent blood from dripping everywhere and causing pollution.
[0019] 4. The present invention, through the pull-out opening and closing mechanism and the reflective mechanism, opens the second conducting port and drives a pair of single positions of the circular fluorescent reflective film in the front-to-back direction to protrude upward under the action of the magnetic repulsive force, forming a state similar to an inverted V shape, so as to facilitate continuous reflection of the fluorescence emitted by the nano fluorescent probe body with the help of two pairs of inclined surfaces in the front-to-back direction, so that the direction of the fluorescence is toward the lower side again, so that it can be aggregated with the overall fluorescence for blood detection, reduce the divergence of fluorescence, and ensure that the fluorescent resources are fully invested in the work, thereby making the blood detection work faster and more accurate, and further improving the efficiency of blood detection.
[0020] Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a partial cross-sectional structural schematic diagram of the plug-in mechanism in the present invention; Figure 3 It is a schematic diagram of the partial cross-section structure of the semi-through frame and the blood drawing needle in the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 5 It is a partial three-dimensional structural schematic diagram of the transmission lifting mechanism in the present invention; Figure 6 It is a partial cross-sectional structural schematic diagram of the drawable opening and closing mechanism and the reflective mechanism in the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in the middle; Figure 8 It is a partial cutaway schematic diagram of the draw-out opening and closing mechanism of the present invention; Fig. 9 It is a schematic diagram of the separation structure of the reflective mechanism in the present invention; Fig.10 It is a schematic diagram of the separation structure of the draw-out opening and closing mechanism and the deformation cleaning mechanism in the present invention; Fig.11 For the present invention Fig.10 The enlarged structural diagram at C in the middle; Fig.12 For the present invention Fig.10 The enlarged structural diagram at D in the middle; Fig.13 It is a schematic diagram of the separation structure of the locking mechanism in the present invention.
[0022] In the figure: 1, blood tester; 2, nano fluorescent probe body; 3, semi-through frame; 4, first conducting port; 5, blood drawing syringe; 6, connecting block; 7, plug-in mechanism; 701, moving plate; 702, plug rod; 703, slot; 704, bottom frame; 705, fixed partition; 706, two-way telescopic rod; 707, spring; 8, connecting plate; 9, blood drawing mechanism; 901, push-pull rod; 9011, thin rod ; 9012, slider; 9013, slide; 902, movable rod; 903, piston; 904, handle; 10, transmission lifting mechanism; 1001, rotating rod; 1002, first gear; 1003, rack; 1004, threaded rod; 1005, lifting moving block; 1006, connecting rod; 1007, fixed rod; 1008, auxiliary moving block; 11, U-shaped plate; 12, pull-out opening and closing mechanism ; 1201, straight tube; 1202, T-shaped rod; 1203, extrusion plate; 1204, telescopic sleeve; 1205, micro electric telescopic rod; 1206, horizontal tube; 1207, connecting vertical tube; 1208, moving circular plate; 1209, connecting curved rod; 12010, sealing arc block; 13, second conducting port; 14, reflective mechanism; 1401, circular plate; 1402, round-mouth fluorescent reflective film; 14 03. First single-sided magnet block; 1404. Support plate; 1405. Half rack plate; 1406. Second gear; 1407. Second single-sided magnet block; 15. Deformation cleaning mechanism; 1501. Ring; 1502. Deformation airbag; 1503. Ring-shaped rag; 1504. Air guide tube; 1505. Micro gas flow control valve; 16. Clamping mechanism; 1601. Elastic clamping block; 1602. Clamping slot. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0024] like Figure 1-13As shown, the present invention provides a technical solution: a forensic blood rapid detection method and device based on nanotechnology, comprising a blood tester 1, a nano fluorescent probe body 2 is installed at the bottom end of the blood tester 1, and a semi-through frame 3 is provided at the bottom of the nano fluorescent probe body 2, a first conducting port 4 is drilled at the top of the semi-through frame 3, a blood drawing syringe 5 is provided inside the semi-through frame 3, and a connecting block 6 is sleeved on the outer wall of the blood drawing syringe 5, the left and right ends of the semi-through frame 3 are fixedly connected with connecting plates 8, and the ends of a pair of connecting plates 8 that are close to each other are respectively in contact with the left and right ends of the connecting block 6, an inserting mechanism 7 is installed between the outer wall of the connecting block 6 and the bottom end of the semi-through frame 3, a blood drawing mechanism 9 is installed between the semi-through frame 3 and the inner wall of the blood drawing syringe 5, a second conducting port 13 is drilled at the top of the blood drawing syringe 5, U-shaped plates 11 are provided on the front and rear sides of the nano fluorescent probe body 2, and a pulling and opening and closing mechanism 12 is installed between the bottom end of the U-shaped plate 11 and the semi-through frame 3 and the outer wall of the blood drawing syringe 5.
[0025] According to the overall structure of the device, after the blood drawing syringe 5 and the nano fluorescent probe body 2 are connected to the semi-through frame 3, the blood of the test subject can be drawn through the blood drawing syringe 5, and the drawn blood is stored inside it. Then the bottom end of the nano fluorescent probe body 2 passes through the first conducting port 4 and the second conducting port 13 in sequence, and extends into the blood drawing syringe 5. The drawn blood is used in conjunction with the blood tester 1 to perform a whole blood test. At the same time, the data after the test and analysis are displayed through the blood tester 1 for easy viewing by forensic personnel.
[0026] like Figure 1-2 As shown, the plug-in mechanism 7 includes a pair of movable plates 701, a bottom end of the semi-through frame 3 is fixedly connected to a bottom frame 704, and a fixed partition 705 is fixedly connected to the inside of the bottom frame 704, a two-way telescopic rod 706 is embedded in the outer wall of the fixed partition 705, and a pair of springs 707 are sleeved on the outer wall of the two-way telescopic rod 706, and the two ends of the pair of springs 707 are respectively fixedly connected to the inner wall of the bottom frame 704 and the outer wall of the two-way telescopic rod 706, circular holes are drilled on the left and right inner walls of the bottom frame 704, and the left and right ends of the two-way telescopic rod 706 pass through a pair of circular holes respectively and are fixedly connected to the ends close to the pair of movable plates 701, the ends close to the pair of movable plates 701 are fixedly connected to a pair of plug rods 702, and a pair of jacks are drilled at one end of the connecting plate 8 close to the movable plate 701, a pair of slots 703 are drilled at the left and right ends of the connecting block 6, and the ends of the pair of plug rods 702 close to the connecting plate 8 pass through the jacks and extend to the inside of the slots 703.
[0027] By setting the plug-in mechanism 7, forensic personnel can use the telescopic effect of the two-way telescopic rod 706 and the elastic effect of the spring 707 to drive a pair of movable plates 701 to move toward or away from each other, so as to drive the two pairs of insertion rods 702 to move toward or away from each other, and plug into or separate from the two pairs of slots 703, so as to drive the connecting block 6 and the blood drawing syringe 5 to be installed, fixed, disassembled and separated from the semi-through frame 3.
[0028] like Figure 1 and Figure 3 As shown, the blood drawing mechanism 9 includes a push-pull rod 901 slidably connected to the semi-through frame 3, a piston 903 is slidably connected inside the blood drawing syringe 5, and the front end of the piston 903 is fixedly connected to a movable rod 902, the inner wall of the blood drawing syringe 5 is drilled with a through hole, and the end of the movable rod 902 away from the piston 903 passes through the through hole and contacts with the rear end of the push-pull rod 901, a locking mechanism 16 is installed between the opposite sides of the movable rod 902 and the push-pull rod 901, a transmission lifting mechanism 10 is installed between the left end of the push-pull rod 901 and the outer wall of the nano fluorescent probe body 2, the inner wall of the semi-through frame 3 is drilled with a rectangular opening, and the end of the push-pull rod 901 away from the movable rod 902 passes through the rectangular opening and is fixedly connected to a handle 904.
[0029] Through the setting of the blood drawing mechanism 9, the forensic personnel pulls the push-pull rod 901 to move forward, so that it drives the piston 903 to move forward inside the blood drawing syringe 5 through the movable rod 902. After the blood drawing syringe 5 is inserted into the test person, the blood can be drawn and stored for subsequent testing and analysis.
[0030] like Figure 4 As shown, the right end of the push-pull rod 901 is fixedly connected to a thin rod 9011, and the end of the thin rod 9011 away from the push-pull rod 901 is fixedly connected to a slider 9012, a slide groove 9013 is drilled on the inner wall of the right end of the semi-through frame 3, and the slider 9012 is located inside the slide groove 9013 and is slidably connected thereto.
[0031] By setting the slider 9012 and the slide groove 9013, when the push-pull rod 901 moves in the front-back direction, the slider 9012 is connected to the push-pull rod 901 through the thin rod 9011, and can move synchronously with the push-pull rod 901 in the slide groove 9013, thereby assisting the movement of the push-pull rod 901 and keeping it in stable movement.
[0032] like Figure 1 , Figure 3 and Figure 5As shown, the transmission lifting mechanism 10 includes a rotating rod 1001 rotatably connected between the inner walls of the semi-through frame 3, the outer wall of the rotating rod 1001 is sleeved with a first gear 1002, the end of the push-pull rod 901 close to the first gear 1002 is fixedly connected with a rack 1003, and the first gear 1002 is meshed with the rack 1003, the top of the rotating rod 1001 is fixedly connected with a threaded rod 1004, and the outer wall of the threaded rod 1004 is sleeved with a lifting moving block 1005, the inner wall of the lifting moving block 1005 is drilled with a threaded hole, and the lifting moving block 1005 is screwed with the threaded rod 1004 through the threaded hole. The outer wall of the nano fluorescent probe body 2 is fixedly connected with a pair of auxiliary moving blocks 1008, the top of the semi-through frame 3 is fixedly connected with a pair of fixed rods 1007, the inner walls of the pair of auxiliary moving blocks 1008 are drilled with long through holes, and the auxiliary moving blocks 1008 are sleeved on the outer walls of the fixed rods 1007 through the long through holes, the rear end of the lifting moving block 1005 is fixedly connected with a connecting rod 1006, and the connecting rod 1006 is connected to the front end of the auxiliary moving block 1008 located on one side through bolts, and the front and rear ends of the pair of auxiliary moving blocks 1008 are respectively fixedly connected to the opposite sides of a pair of U-shaped plates 11.
[0033] By setting the transmission lifting mechanism 10, the synchronous movement of the rack 1003 and the push-pull rod 901 is utilized to drive the first gear 1002 and the rotating rod 1001 to rotate, and transmit the transmission to the threaded rod 1004 to make them rotate synchronously. With the help of the rotation of the threaded rod 1004, the lifting and moving block 1005 is driven to move downward, prompting the lifting and moving block 1005 to drive the bottom end of the nano fluorescent probe body 2 to move downward through the connecting rod 1006 and the auxiliary moving block 1008, pass through the first conducting port 4, and extend downward to the inside of the semi-through frame 3, and then continue to move downward, and pass through the second conducting port 13 to extend to the inside of the blood drawing syringe 5, and the drawn blood is used in conjunction with the blood testing instrument 1 for whole blood testing, so that during the blood drawing process, the nano fluorescent probe body 2 is synchronously driven to move downward, so that the nano fluorescent probe body 2 can be promptly tested for whole blood after the blood drawing is completed, thereby reducing the cumbersome steps, shortening the testing time, making blood testing simpler and faster, and improving the efficiency of blood testing.
[0034] like Figure 1 and Figure 6-8 as well as Fig.10As shown, the pulling and opening and closing mechanism 12 includes a pair of straight cylinders 1201 fixedly connected to the top of the semi-through frame 3, the interiors of the pair of straight cylinders 1201 are slidably connected with an extrusion plate 1203, the bottom ends of the pair of U-shaped plates 11 are bonded with T-shaped rods 1202, and the tops of the pair of straight cylinders 1201 are drilled with vertical movement through holes, and the bottom ends of the pair of T-shaped rods 1202 pass through the vertical movement through holes and are fixedly connected to the top of the extrusion plate 1203, the top of the semi-through frame 3 is drilled with a pair of accommodating openings, and the pair of accommodating openings are respectively located at the bottoms of the pair of straight cylinders 1201, the bottom ends of the pair of straight cylinders 1201 are fixedly connected with telescopic sleeves 1204, and a pair of micro-electric telescopic rods 1205 are installed between the opposite sides of the telescopic sleeves 1204 and the straight cylinders 1201, and the top of the blood drawing syringe 5 is fixedly connected with a pair of horizontal cylinders 120 6, and the interiors of a pair of horizontal cylinders 1206 are slidably connected with movable circular plates 1208, the tops of a pair of horizontal cylinders 1206 are fixedly connected with connecting vertical tubes 1207, and the bottom ends of the telescopic sleeves 1204 pass through the accommodating opening and are sleeved on the outer walls of the connecting vertical tubes 1207, a pair of contacting sealing arc blocks 12010 are provided at the tops of the second conducting opening 13, and the tops of the pair of sealing arc blocks 12010 are fixedly connected with connecting bent rods 1209, transverse through holes are drilled on the opposite sides of the pair of horizontal cylinders 1206, and the ends of the pair of connecting bent rods 1209 that are away from each other pass through the transverse through holes and are fixedly connected with the movable circular plates 1208, a reflective mechanism 14 is installed between the outer walls of a pair of sealing arc blocks 12010, and a deformation cleaning mechanism 15 is installed between the first conducting opening 4 and the straight cylinder 1201 located on the front side.
[0035] By setting the pulling and opening and closing mechanism 12, a pair of telescopic sleeves 1204 are respectively extended downward under the push and extension of a pair of micro-electric telescopic rods 1205, and are sleeved on the connecting vertical tube 1207, so that the straight cylinder 1201 and the horizontal cylinder 1206 are kept conductive, and a pair of U-shaped plates 11 move downward with the auxiliary moving block 1008, driving a pair of T-shaped rods 1202 and an extrusion plate 1203 to move downward, so that the air squeezed inside the pair of straight cylinders 1201 is respectively blown into a pair of horizontal cylinders 1206, and as the interior of the horizontal cylinder 1206 is blown into gas, a pair of movable circular plates 1208 and a connecting curved rod 1209 are pushed to move apart, driving a pair of sealing arc blocks 12010 to separate from each other, thereby removing the obstruction of the second conducting port 13, so that the nano fluorescent probe body 2 can pass through the second conducting port 13 and extend to the inside of the blood drawing syringe 5, and the drawn blood is matched with the blood testing instrument 1 for whole blood testing.
[0036] like Figure 6 and Fig. 9As shown, the reflective mechanism 14 includes a circular plate 1401 located at the top of the sealing arc block 12010, the inner wall of the circular plate 1401 is fixedly connected with a round fluorescent reflective film 1402, and the top of the round fluorescent reflective film 1402 is fixedly connected with a pair of first single-sided magnet blocks 1403, and the ends of the pair of sealing arc blocks 12010 that are far away from each other are fixedly connected with a pair of half rack plates 1405, and two pairs of support plates 1404 are fixedly connected between the circular plate 1401 and the opposite sides of the blood drawing syringe 5, and a pair of support plates 140 4 are rotatably connected with second gears 1406 through bearings and rotating shafts, the two pairs of second gears 1406 are respectively located on the top of the two pairs of half rack plates 1405, and the second gears 1406 are meshed with the half rack plates 1405, and the opposite sides of a pair of second gears 1406 are fixedly connected with second single-sided magnet blocks 1407, the bottom ends of the first single-sided magnet block 1403 and the second single-sided magnet block 1407 are both magnetic ends, and the magnetic ends of the first single-sided magnet block 1403 and the second single-sided magnet block 1407 repel each other.
[0037] By setting the reflective mechanism 14, a pair of sealing arc blocks 12010 move apart, driving the two pairs of half rack plates 1405 to move apart, and the two pairs of second gears 1406 are respectively located at the top of the half rack plates 1405, that is, when the two pairs of half rack plates 1405 move apart, they will contact and mesh with the two pairs of second gears 1406 respectively, so as to drive the second gears 1406 to rotate, so that the two pairs of second single-sided magnet blocks 1407 rotate 180°, prompting the bottom ends, i.e., the magnetic ends, of the two pairs of second single-sided magnet blocks 1407 to rotate toward the top and correspond to the bottom ends, i.e., the magnetic ends, of the pair of first single-sided magnet blocks 1403. At this time, the magnetic ends of the first single-sided magnet block 1403 and the pair of second single-sided magnet blocks 1407 are at In the corresponding state, the magnetic repulsion force is relatively strong, so that the first single-sided magnet block 1403 moves upward, driving the circular fluorescent reflective film 1402 area connected to it to protrude upward under the action of the magnetic repulsion force, forming a state similar to an inverted V shape, so that when the nano fluorescent probe body 2 emits fluorescence for blood detection, the two inclined surfaces similar to the inverted V shape on the front and back sides of the top circular fluorescent reflective film 1402 are used to continuously reflect part of the divergent fluorescence, so that the direction of the fluorescence is toward the lower side again, so that it can be aggregated with the overall fluorescence for blood detection, reducing the divergence of fluorescence, and ensuring that the fluorescent resources are fully invested in the work, thereby making the blood detection work faster and more accurate, and further improving the efficiency of blood detection.
[0038] like Figure 10-12As shown, the deformation cleaning mechanism 15 includes a circular ring 1501 arranged on the top of the semi-through frame 3, a deformable airbag 1502 is fixedly connected inside the circular ring 1501, and an annular wiping cloth 1503 is adhered to the inner wall of the deformable airbag 1502, the inner diameter of the annular wiping cloth 1503 matches the outer diameter of the bottom end of the nano fluorescent probe body 2, the deformable airbag 1502 is located inside the first conducting port 4, an air guide tube 1504 is fixedly connected between the top of the deformable airbag 1502 and the outer wall of the straight cylinder 1201 located on the front side, and a micro gas flow control valve 1505 is installed on the outer wall of the air guide tube 1504.
[0039] Through the setting of the deformation cleaning mechanism 15, the extrusion plate 1203 squeezes the air inside the straight cylinder 1201 downward to flow downward into the horizontal cylinder 1206. Correspondingly, as the area above the straight cylinder 1201 increases, the gas inside the deformable airbag 1502 flows upward under the extraction effect and enters the area above the straight cylinder 1201 for replenishment. At the same time, the micro gas flow control valve 1505 monitors the flow of the flowing gas in real time, and closes the air guide tube 1504 when the gas extraction inside the deformable airbag 1502 reaches the limit, stopping the gas replenishment, so as to drive the annular wiper 1503 to shrink, so that the nano fluorescent probe body 2 quickly passes through the first conduction port 4, reducing obstruction and interference, and in the nano After the blood test of the nano fluorescent probe body 2 is completed, the extrusion plate 1203 moves upward as the nano fluorescent probe body 2 moves upward, and the air in the area above the straight cylinder 1201 flows back to the inside of the deformable airbag 1502, causing it to expand again, driving the annular wiper 1503 to return to its initial state, so that the bottom end of the nano fluorescent probe body 2 can contact the inner wall of the annular wiper 1503 during the upward movement, and can wipe and preliminarily clean the blood attached to the surface of the bottom end of the nano fluorescent probe body 2 during the detection process, to prevent blood from dripping everywhere and causing pollution. The bonding method in this scheme is to connect by tape, which can be disassembled, separated and replaced.
[0040] like Fig.13 As shown, the engaging mechanism 16 includes an elastic block 1601 fixedly connected to the front end of the movable rod 902 , and a slot 1602 is formed at one end of the push-pull rod 901 close to the movable rod 902 , and the elastic block 1601 is engaged with the slot 1602 .
[0041] By setting the engaging mechanism 16 and utilizing the engagement and separation between the elastic engaging block 1601 and the engaging slot 1602 , the push-pull rod 901 and the movable rod 902 can be driven to be connected and separated.
[0042] like Figure 1-13 As shown, the forensic blood rapid detection method based on nanotechnology includes the following steps: S1. First, disinfect the entire blood testing device. After the disinfection is completed, move the pair of movable plates 701 to move away from each other with the assistance of the bidirectional telescopic rod 706 and the pair of springs 707, driving the two pairs of insertion rods 702 to retract into the two pairs of insertion holes respectively. Then, take the blood drawing syringe 5 and the connecting block 6 and insert them into the semi-through frame 3, so that the elastic card block 1601 on the movable rod 902 is inserted into the card slot 1602, driving the push-pull rod 901 and the movable rod 902 to be connected and fixed, and loosen the pair of movable plates 701. The plate 701 is moved, so that the pair of movable plates 701 move toward each other with the assistance of the bidirectional telescopic rod 706 and the pair of springs 707, driving the two pairs of insertion rods 702 to be inserted into the two pairs of slots 703, driving the connection block 6 and the blood drawing syringe 5 to be installed and fixed with the semi-through frame 3, and then the pair of telescopic sleeves 1204 are respectively extended downward under the push and extension of the pair of micro-electric telescopic rods 1205, and are sleeved on the connecting vertical tube 1207, so that the straight tube 1201 and the horizontal tube 1206 are kept conductive; S2. Next, the blood drawing syringe 5 is inserted into the test subject, and the push-pull rod 901, the rack 1003 and the movable rod 902 are pulled to move forward, driving the piston 903 to move forward inside the blood drawing syringe 5 to draw blood. At the same time, the rack 1003 drives the first gear 1002 and the rotating rod 1001 to rotate, which drives the threaded rod 1004 to rotate, prompting the lifting moving block 1005 to move downward, and drives the bottom end of the nano fluorescent probe body 2 to move downward through the connecting rod 1006 and the auxiliary moving block 1008. The corresponding pair of U-shaped plates 11 drives the squeezing plate 1203 to move downward, squeezing the inside of the pair of straight cylinders 1201 The air flows downward, so that the gas inside the deformable airbag 1502 flows upward under the real-time monitoring and regulation of the micro gas flow control valve 1505, and enters the area above the straight tube 1201 for replenishment, driving the annular wiper 1503 to shrink, so that the nano fluorescent probe body 2 quickly passes through the first conducting port 4, and the air inside the pair of straight tubes 1201 flows downward to the pair of horizontal tubes 1206, squeezing the pair of movable circular plates 1208 and the connecting curved rod 1209 to move apart, driving the pair of sealing arc blocks 12010 to cancel the shielding of the second conducting port 13, so that the nano fluorescent probe body 2 passes through the second conducting port 13 and then extends into the blood drawing syringe 5; S3, a pair of sealing arc blocks 12010 separate and drive two pairs of half rack plates 1405 to move apart, so that the two pairs of second gears 1406 rotate 180°, and drive the two pairs of second single-sided magnet blocks 1407 to rotate 180°, so that the bottom ends, i.e., magnetic ends, of the two pairs of second single-sided magnet blocks 1407 correspond to the bottom ends, i.e., magnetic ends, of the pair of first single-sided magnet blocks 1403, and use the magnetic repulsive force to drive the pair of first single-sided magnet blocks 1403 to move upward, and pull the circular fluorescent reflective film 1402 in the area to protrude upward, forming a state similar to an inverted V shape, and then turn on the blood tester 1, the nano fluorescent probe body 2 emits fluorescence to perform whole blood detection on the blood just drawn, and for the partially divergent fluorescence, the two inclined surfaces similar to the inverted V shape on the front and rear sides of the top circular fluorescent reflective film 1402 continuously reflect the partially divergent fluorescence, so that the direction of the fluorescence is toward the lower side again, so as to be aggregated with the overall fluorescence for blood detection; S4. After the detection of the nanofluorescent probe body 2 is completed, the push-pull rod 901 and the movable rod 902 drive the piston 903 to squeeze the blood inside the blood-drawing syringe 5 and introduce it into the test tube, driving the threaded rod 1004 to rotate in the opposite direction, driving the bottom end of the nanofluorescent probe body 2 to move upward, so that the pair of U-shaped plates 11 also move upward, driving the squeezing plate 1203 to move upward, squeezing the air in the area above the straight cylinder 1201 to flow back into the deformable airbag 1502, driving the annular wiper 1503 to return to its initial state, so that the inner wall of the annular wiper 1503 contacts the bottom end of the nanofluorescent probe body 2, and the blood attached to the surface during the detection process is wiped off and preliminarily cleaned.
[0043] Working principle: First, the entire blood testing device is disinfected before use. After the disinfection is completed, a pair of movable plates 701 are moved apart, and the bidirectional telescopic rod 706 and a pair of springs 707 are pulled to stretch, driving the two pairs of insertion rods 702 to shrink into the two pairs of insertion holes respectively, and then the blood drawing syringe 5 and the connecting block 6 are inserted into the semi-through frame 3, so that the movable rod 902 is close to the push-pull rod 901 until the movable rod 902 contacts the push-pull rod 901. At this time, the elastic card block 1601 is deformed and then inserted into the card slot 1602, driving the push-pull rod 901 and the movable rod 902 to be connected and fixed. After the push-pull rod 901 and the movable rod 902 are fixed, the pair of movable plates 701 are released, so that the pair of movable plates 701 are connected between the pair of springs 707. Under the elastic action of the two-way telescopic rod 706, the two pairs of insertion rods 702 are respectively inserted into the two pairs of slots 703 under the elastic action of the two-way telescopic rod 706, and the connecting block 6 and the blood drawing syringe 5 are respectively installed and fixed with the semi-through frame 3. Then, the pair of telescopic sleeves 1204 are respectively extended downward under the push and extension of the pair of micro-electric telescopic rods 1205, and are sleeved on the connecting vertical tube 1207, so that the straight tube 1201 and the horizontal tube 1206 are kept unobstructed. Next, the blood drawing syringe 5 is inserted into the tester, and the push-pull rod 901 is pulled to move forward, so that it drives the piston 903 to move forward inside the blood drawing syringe 5 through the movable rod 902, so that the blood can be drawn and stored. At the same time, the rack 1003 moves with the push-pull rod 90 1 moves synchronously, and drives the first gear 1002 and the rotating rod 1001 to rotate through the meshing transmission, so that the rotating rod 1001 drives the threaded rod 1004 to rotate through the connection transmission, prompting the lifting moving block 1005 to move downward under the rotation of the threaded rod 1004, and drives the bottom end of the nano fluorescent probe body 2 to move downward through the connecting rod 1006 and the auxiliary moving block 1008, and the corresponding pair of U-shaped plates 11 also moves downward, driving the pair of T-shaped rods 1202 and the extrusion plate 1203 to move downward, so that the air inside the pair of straight cylinders 1201 is squeezed into the pair of horizontal cylinders 1206 respectively. At the same time, as the area above the straight cylinder 1201 increases, the air inside the deformation airbag 1502 is extracted. The gas flows upward and enters the area above the straight cylinder 1201 for replenishment. At the same time, the micro gas flow control valve 1505 monitors the flow of the flowing gas in real time, and closes the air guide tube 1504 when the gas extraction inside the deformable airbag 1502 reaches the limit, and stops replenishing the gas, so as to drive the annular wiper 1503 to shrink, so that the nano fluorescent probe body 2 quickly passes through the first conducting port 4. After the internal gas of a pair of horizontal cylinders 1206 is increased by bubbling, a pair of movable circular plates 1208 and connecting curved rods 1209 are pushed to move apart, driving a pair of sealing arc blocks 12010 to separate from each other, canceling the shielding of the second conducting port 13, so that the nano fluorescent probe body 2 passes through the second conducting port 13 and extends into the blood drawing syringe 5.The pair of sealing arc blocks 12010 separate and drive the two pairs of half rack plates 1405 to move apart, contact and mesh with the two pairs of second gears 1406, so that the two pairs of second gears 1406 rotate 180°, drive the two pairs of second single-sided magnet blocks 1407 to rotate 180°, and cause the bottom ends, i.e., the magnetic ends, of the two pairs of second single-sided magnet blocks 1407 to rotate toward the top, corresponding to the bottom ends, i.e., the magnetic ends, of the pair of first single-sided magnet blocks 1403. At this time, the magnetic ends of the first single-sided magnet block 1403 and the pair of second single-sided magnet blocks 1407 are in a corresponding state, and the magnetic repulsion force is relatively strong. The first single-sided magnet block 1403 moves upward, driving the circular fluorescent reflective film 1402 area connected thereto to protrude upward under the action of the magnetic repulsive force, forming a state similar to an inverted V shape. After the nano fluorescent probe body 2 enters the blood drawing syringe 5, the blood drawing work is also synchronously completed at this time. The nano fluorescent probe body 2 generates fluorescence in time to cooperate with the blood tester 1 to perform a full blood test on it, reducing the cumbersome steps, shortening the test time, making the blood test simpler and faster, and improving the blood test efficiency. As for the partially divergent fluorescence, the top circular fluorescent reflective film 140 The two inclined surfaces similar to the inverted V-shaped state on the front and rear sides continuously reflect part of the divergent fluorescence, so that the direction of the fluorescence is directed downward again, so as to be aggregated with the overall fluorescence for blood testing, reduce the divergence of fluorescence, and ensure that the fluorescence resources are fully invested in the work, so that the blood testing work is faster and more accurate, and the blood testing efficiency is further improved. After the blood test, the push-pull rod 901 and the movable rod 902 drive the piston 903 to squeeze the blood inside the blood drawing syringe 5 into the test tube for subsequent component detection, and the corresponding threaded rod 1004 rotates in the opposite direction, with The bottom end of the nano fluorescent probe body 2 moves upward, so that the pair of U-shaped plates 11 also move upward, driving the extrusion plate 1203 to move upward, and the air in the area above the straight cylinder 1201 flows back into the deformable airbag 1502, causing it to expand again, driving the annular wipe 1503 to return to its initial state, so that the bottom end of the nano fluorescent probe body 2 can contact the inner wall of the annular wipe 1503 during the upward movement, and can wipe and preliminarily clean the blood attached to the surface of the bottom end of the nano fluorescent probe body 2 during the detection process, to prevent blood from dripping everywhere and causing pollution.
[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A forensic blood rapid detection device based on nanotechnology, comprising a blood detection instrument (1), characterized in that: A nano fluorescent probe body (2) is installed at the bottom of the blood tester (1), and a semi-through frame (3) is provided at the bottom of the nano fluorescent probe body (2), a first conducting port (4) is formed at the top of the semi-through frame (3), a blood drawing syringe (5) is provided inside the semi-through frame (3), and a connecting block (6) is sleeved on the outer wall of the blood drawing syringe (5), and connecting plates (8) are fixedly connected to the left and right ends of the semi-through frame (3), and the ends of a pair of connecting plates (8) are respectively connected to the left and right ends of the connecting block (6). The two ends are in contact, an insertion mechanism (7) is installed between the outer wall of the connecting block (6) and the bottom end of the semi-through frame (3), a blood drawing mechanism (9) is installed between the semi-through frame (3) and the inner wall of the blood drawing syringe (5), a second conducting port (13) is opened at the top of the blood drawing syringe (5), a U-shaped plate (11) is provided on both the front and rear sides of the nano fluorescent probe body (2), and a pull-out opening and closing mechanism (12) is installed between the bottom end of the U-shaped plate (11) and the outer walls of the semi-through frame (3) and the blood drawing syringe (5).
2. The forensic blood rapid detection device based on nanotechnology according to claim 1 is characterized in that: The plug-in mechanism (7) comprises a pair of movable plates (701); the bottom end of the semi-through frame (3) is fixedly connected to a bottom frame (704); the inside of the bottom frame (704) is fixedly connected to a fixed partition (705); the outer wall of the fixed partition (705) is embedded with a bidirectional telescopic rod (706); the outer wall of the bidirectional telescopic rod (706) is sleeved with a pair of springs (707); the two ends of the pair of springs (707) are respectively fixedly connected to the inner wall of the bottom frame (704) and the outer wall of the bidirectional telescopic rod (706); the left and right sides of the bottom frame (704) are fixedly connected to the inner wall of the bottom frame (704) and the outer wall of the bidirectional telescopic rod (706); The inner walls at both ends are bored with circular holes, and the left and right ends of the bidirectional telescopic rod (706) pass through a pair of circular holes respectively and are fixedly connected to the ends close to the pair of movable plates (701), the ends close to the pair of movable plates (701) are fixedly connected to a pair of plug rods (702), and the end of the connecting plate (8) close to the movable plate (701) is bored with a pair of plug holes, and the left and right ends of the connecting block (6) are bored with a pair of slots (703), and the ends of the pair of plug rods (702) close to the connecting plate (8) pass through the plug holes and extend into the slots (703).
3. The forensic blood rapid detection device based on nanotechnology according to claim 1 is characterized in that: The blood drawing mechanism (9) comprises a push-pull rod (901) slidably connected to the semi-through frame (3); a piston (903) is slidably connected to the interior of the blood drawing syringe (5); and a movable rod (902) is fixedly connected to the front end of the piston (903); a through hole is bored on the inner wall of the blood drawing syringe (5); an end of the movable rod (902) away from the piston (903) passes through the through hole and contacts the rear end of the push-pull rod (901); a locking mechanism (16) is installed between the opposite sides of the movable rod (902) and the push-pull rod (901); a transmission lifting mechanism (10) is installed between the left end of the push-pull rod (901) and the outer wall of the nano fluorescent probe body (2); a rectangular through hole is bored on the inner wall of the semi-through frame (3); an end of the push-pull rod (901) away from the movable rod (902) passes through the rectangular through hole and is fixedly connected to a handle (904).
4. The forensic blood rapid detection device based on nanotechnology according to claim 3 is characterized in that: The right end of the push-pull rod (901) is fixedly connected to a thin rod (9011), and one end of the thin rod (9011) away from the push-pull rod (901) is fixedly connected to a sliding block (9012); a sliding groove (9013) is cut on the inner wall of the right end of the semi-through frame (3), and the sliding block (9012) is located inside the sliding groove (9013) and is slidably connected thereto.
5. The nanotechnology-based forensic blood rapid detection device according to claim 3 is characterized in that: The transmission lifting mechanism (10) comprises a rotating rod (1001) rotatably connected between the inner walls of the semi-through frame (3); the outer wall of the rotating rod (1001) is sleeved with a first gear (1002); one end of the push-pull rod (901) close to the first gear (1002) is fixedly connected with a rack (1003), and the first gear (1002) is meshingly connected with the rack (1003); the top end of the rotating rod (1001) is fixedly connected with a threaded rod (1004), and the outer wall of the threaded rod (1004) is sleeved with a lifting moving block (1005); the inner wall of the lifting moving block (1005) is drilled with a threaded hole, and the lifting moving block (1005) is connected to the threaded rod (1004) through the threaded hole. 4) threaded connection, the outer wall of the nano fluorescent probe body (2) is fixedly connected to a pair of auxiliary moving blocks (1008), the top of the semi-through frame (3) is fixedly connected to a pair of fixed rods (1007), the inner walls of the pair of auxiliary moving blocks (1008) are drilled with long through holes, and the auxiliary moving blocks (1008) are sleeved on the outer walls of the fixed rods (1007) through the long through holes, the rear end of the lifting moving block (1005) is fixedly connected to a connecting rod (1006), and the connecting rod (1006) is connected to the front end of the auxiliary moving block (1008) located on one side through bolts, and the front and rear ends of the pair of auxiliary moving blocks (1008) are respectively fixedly connected to the opposite sides of a pair of U-shaped plates (11).
6. The forensic blood rapid detection device based on nanotechnology according to claim 1 is characterized in that: The pull-out opening and closing mechanism (12) comprises a pair of straight tubes (1201) fixedly connected to the top of the semi-through frame (3); the interiors of the pair of straight tubes (1201) are slidably connected to a squeezing plate (1203); the bottom ends of the pair of U-shaped plates (11) are bonded to a T-shaped rod (1202); the top ends of the pair of straight tubes (1201) are drilled with vertical movement through holes; the bottom ends of the pair of T-shaped rods (1202) pass through the vertical movement through holes and are connected to the squeezing plate (1203). The top of the semi-through frame (3) is fixedly connected, a pair of accommodating openings are opened at the top of the semi-through frame (3), and the pair of accommodating openings are respectively located at the bottom of a pair of straight tubes (1201), the bottom ends of the pair of straight tubes (1201) are fixedly connected with telescopic sleeves (1204), and a pair of micro-electric telescopic rods (1205) are installed between the telescopic sleeves (1204) and the opposite sides of the straight tubes (1201), and the top of the blood drawing syringe (5) is fixedly connected with a pair of horizontal tubes (1206 ), and a pair of horizontal cylinders (1206) are slidably connected to the inside with a movable circular plate (1208), the top ends of the pair of horizontal cylinders (1206) are fixedly connected to a connecting vertical tube (1207), and the bottom end of the telescopic sleeve (1204) passes through the accommodating opening and is sleeved on the outer wall of the connecting vertical tube (1207), and a pair of contacting sealing arc blocks (12010) are provided at the top of the second conducting opening (13), and the top ends of the pair of sealing arc blocks (12010) are fixedly connected to the top of the pair of horizontal cylinders (1206). A connecting bent rod (1209) is fixedly connected, and transverse through holes are drilled on opposite sides of a pair of the transverse cylinders (1206), and the ends of the pair of connecting bent rods (1209) that are away from each other pass through the transverse through holes and are fixedly connected to the movable circular plate (1208), a reflective mechanism (14) is installed between the outer walls of a pair of the sealing arc blocks (12010), and a deformation cleaning mechanism (15) is installed between the first conducting port (4) and the straight cylinder (1201) located on the front side.
7. The nanotechnology-based forensic blood rapid detection device according to claim 6 is characterized in that: The reflective mechanism (14) comprises a circular plate (1401) located at the top of the sealing arc block (12010), the inner wall of the circular plate (1401) is fixedly connected with a round fluorescent reflective film (1402), and the top of the round fluorescent reflective film (1402) is fixedly connected with a pair of first single-sided magnet blocks (1403), and the ends of a pair of sealing arc blocks (12010) that are far away from each other are fixedly connected with a pair of half-rack plates (1405), and two pairs of support plates (1404) are fixedly connected between the circular plate (1401) and the opposite sides of the blood drawing syringe (5), and a pair of support plates (140 4) are rotatably connected to the second gear (1406) on the opposite sides thereof through bearings and rotating shafts, the two pairs of the second gears (1406) are respectively located on the tops of the two pairs of half rack plates (1405), and the second gears (1406) are meshed with the half rack plates (1405), and the opposite sides of a pair of the second gears (1406) are fixedly connected to the second single-sided magnet blocks (1407), the bottom ends of the first single-sided magnet blocks (1403) and the second single-sided magnet blocks (1407) are both magnetic ends, and the magnetic ends of the first single-sided magnet blocks (1403) and the second single-sided magnet blocks (1407) repel each other.
8. The nanotechnology-based forensic blood rapid detection device according to claim 6 is characterized by: The deformation cleaning mechanism (15) comprises a circular ring (1501) arranged on the top of the semi-through frame (3); a deformable airbag (1502) is fixedly connected inside the circular ring (1501); an annular wiping cloth (1503) is bonded to the inner wall of the deformable airbag (1502); the inner diameter of the annular wiping cloth (1503) matches the outer diameter of the bottom end of the nano fluorescent probe body (2); the deformable airbag (1502) is located inside the first conducting port (4); an air guide tube (1504) is fixedly connected between the top of the deformable airbag (1502) and the outer wall of the straight tube (1201) located at the front side; and a micro gas flow control valve (1505) is installed on the outer wall of the air guide tube (1504).
9. The forensic blood rapid detection device based on nanotechnology according to claim 3 is characterized by: The locking mechanism (16) comprises an elastic locking block (1601) fixedly connected to the front end of the movable rod (902); a locking groove (1602) is formed at one end of the push-pull rod (901) close to the movable rod (902), and the elastic locking block (1601) is locked with the locking groove (1602).
10. The forensic blood rapid detection method based on nanotechnology according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. First, the entire blood testing device is disinfected. After the disinfection is completed, a pair of movable plates (701) are moved away from each other with the assistance of a bidirectional telescopic rod (706) and a pair of springs (707), driving the two pairs of insertion rods (702) to retract into the two pairs of insertion holes respectively. Then, a blood drawing syringe (5) and a connecting block (6) are taken and inserted into the semi-through frame (3), so that the elastic card block (1601) on the movable rod (902) is inserted into the card slot (1602), driving the push-pull rod (901) and the movable rod (902) to be connected and fixed, and the pair of movable plates (701) are released. The pair of movable plates (701) are moved to move toward each other with the assistance of the bidirectional telescopic rods (706) and the pair of springs (707), driving the two pairs of insertion rods (702) to be inserted into the two pairs of slots (703), driving the connecting block (6) and the blood drawing syringe (5) to be installed and fixed with the semi-through frame (3), and then the pair of telescopic sleeves (1204) are respectively extended downward under the push and extension of the pair of micro-electric telescopic rods (1205) and are sleeved on the connecting vertical tube (1207), so that the straight tube (1201) and the horizontal tube (1206) are kept conductive; S2. Next, the blood drawing syringe (5) is inserted into the test subject, and the push-pull rod (901), the rack (1003) and the movable rod (902) are pulled forward to move, driving the piston (903) to move forward inside the blood drawing syringe (5) to draw blood. At the same time, the rack (1003) drives the first gear (1002) and the rotating rod (1001) to rotate, so that the first gear (1002) and the rotating rod (1001) are driven to rotate, so that the threaded rod (1004) is driven to rotate, so that the lifting moving block (1005) moves downward, and the bottom end of the nano fluorescent probe body (2) is driven downward through the connecting rod (1006) and the auxiliary moving block (1008). The corresponding pair of U-shaped plates (11) drives the squeezing plate (1203) to move downward, squeezing the pair of straight cylinders (1201) The air inside flows downward, causing the gas inside the deformable airbag (1502) to flow upward under the real-time monitoring and regulation of the micro gas flow control valve (1505), and enter the area above the straight tube (1201) for replenishment, driving the annular wiper (1503) to contract, causing the nano fluorescent probe body (2) to quickly pass through the first conduction port (4), and the air inside the pair of straight tubes (1201) flows downward into the pair of horizontal tubes (1206), squeezing the pair of movable circular plates (1208) and the connecting curved rod (1209) to move apart, driving the pair of sealing arc blocks (12010) to cancel the shielding of the second conduction port (13), so that the nano fluorescent probe body (2) passes through the second conduction port (13) and then extends into the blood drawing syringe (5); S3. A pair of sealing arc blocks (12010) separate and drive two pairs of half rack plates (1405) to move apart, causing the two pairs of second gears (1406) to rotate 180°, driving the two pairs of second single-sided magnet blocks (1407) to rotate 180°, causing the bottom ends, i.e., magnetic ends, of the two pairs of second single-sided magnet blocks (1407) to correspond to the bottom ends, i.e., magnetic ends, of the pair of first single-sided magnet blocks (1403), and using the magnetic repulsive force to drive the pair of first single-sided magnet blocks (1403) to move upward, and pull the area The circular fluorescent reflective film (1402) of the domain protrudes upward to form a state similar to an inverted V shape, and then the blood tester (1) is turned on, and the nano fluorescent probe body (2) emits fluorescence to perform whole blood testing on the blood just drawn. For the partially divergent fluorescence, the two inclined surfaces similar to the inverted V shape on the front and back sides of the top circular fluorescent reflective film (1402) continuously reflect the partially divergent fluorescence, so that the direction of the fluorescence is directed downward again, so as to be aggregated with the overall fluorescence for blood testing; S4. After the detection of the nano fluorescent probe body (2) is completed, the push-pull rod (901) and the movable rod (902) drive the piston (903) to squeeze the blood inside the blood-drawing syringe (5) and introduce it into the test tube, driving the threaded rod (1004) to rotate in the opposite direction, driving the bottom end of the nano fluorescent probe body (2) to move upward, so that the pair of U-shaped plates (11) also move upward, driving the pressure plate (1203) to move upward, squeezing the air in the area above the straight tube (1201) to flow back into the deformable airbag (1502), driving the annular wiper (1503) to return to its initial state, so that the inner wall of the annular wiper (1503) contacts the bottom end of the nano fluorescent probe body (2), and the blood attached to the surface during the detection process is wiped off and preliminarily cleaned.