Sampling device for blood oxygen test paper detection
By combining magnetic plate, light detection and camera, the problem of slight changes in blood oxygen test strips affecting detection is solved, and the accurate and stable detection of blood oxygen test strips is achieved.
Patent Information
- Application Number
- CN202510608994.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-13
- Publication Date
- 2025-07-22
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing blood oxygen test strips cannot accurately judge tiny scratches and tiny chromatic aberrations caused by moisture, which affects the accuracy of the test results.
The magnetic plate is used to detect the magnetic components of the blood oxygen test strip, the light transmitter and receiver detect the flatness, the camera observes the surface scratches and color difference, and the blood oxygen test strip is fixedly clamped through the driving mechanism for a comprehensive inspection.
It improves the accuracy of the detection of blood oxygen test strips, ensures its effectiveness and stability, and avoids moisture and scratches affecting the detection results.
Smart Images

Figure CN120352437A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of sampling devices, and particularly to a sampling device for detecting blood oxygen test strips. Background Art
[0002] Blood oxygen saturation is one of the important basic data in clinical medicine. Blood oxygen saturation refers to the percentage of the O2 capacity bound in the total blood volume to the total O2 binding capacity, and the blood oxygen test strip is one of the conventional means in blood oxygen detection methods.
[0003] Existing blood oxygen test strips can only judge whether the blood oxygen test strips are effective through the expiration date on the packaging box. However, when the blood oxygen test strips are scratched or dampened, they will also lose their effectiveness. And the human eye of the user cannot accurately judge the minute scratches generated after the blood oxygen test strips are scratched and the minute color differences generated after the blood oxygen test strips are dampened. Blood oxygen test strips with unclear use effects are extremely likely to affect the accuracy of subsequent blood oxygen detection results. Summary of the Invention
[0004] The purpose of the present invention is to solve the problem in the prior art that the human eye of the user cannot accurately judge whether the minute changes generated in the blood oxygen test strips will affect the use of the blood oxygen test strips, and to propose a sampling device for detecting blood oxygen test strips.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: A sampling device for detecting blood oxygen test strips, the sampling device includes: A mounting plate for mounting a test strip box containing blood oxygen test strips; A pushing mechanism installed in the mounting plate, the pushing mechanism is used to push the blood oxygen test strip out of the test strip box; A magnetic plate installed at one end of the mounting plate away from the test strip box, the magnetic plate is used to detect whether the blood oxygen test strip has magnetism; A light emitter and a light receiver installed on the mounting plate, the light emitter and the light receiver are arranged diagonally, and the light emitter and the light receiver are used to detect the flatness of the blood oxygen test strip; A mounting bracket installed on one side of the mounting plate; A camera installed on the mounting bracket, the camera is used to detect the appearance of the blood oxygen test strip.
[0006] Preferably, a discharge port for slidably sleeving the blood oxygen test strip is opened at the lower end of the test strip box, and an installation cavity for installing the pushing mechanism is opened in the mounting plate.
[0007] Preferably, the pushing mechanism includes: A bracket, the bracket is fixedly connected to the mounting plate; A first motor, wherein the first motor is fixedly mounted on the bracket; A lead screw and a movable slider driven by the first motor, wherein the lead screw is rotatably mounted on the inner wall of the mounting cavity, and the movable slider is matched with the lead screw; A push plate and a connecting plate, wherein the push plate is slidably mounted on the discharge port, and the connecting plate is fixedly connected between the movable slider and the push plate.
[0008] Preferably, the mounting plate is provided with a long guide hole for slidingly fitting the connecting plate, a guide rod is fixedly connected between the mounting cavity and the bracket, and a guide block fixedly connected to the movable slider is provided on the guide rod.
[0009] Preferably, a fixing mechanism for fixing and clamping the blood oxygen test strip is provided on the mounting bracket.
[0010] Preferably, the fixing mechanism comprises: A mounting groove and a placement groove are connected, the mounting groove is arranged on the mounting plate, and the placement groove is arranged on the mounting plate; A resistance plate, the resistance plate is placed in the placement groove; A driven rack, the driven rack being slidably mounted on the abutment plate; a second motor, the second motor being located in the mounting slot; A driving gear meshingly connected with the driven rack, wherein the driving gear is fixedly mounted on the output end of the second motor.
[0011] Preferably, the fixing mechanism further comprises: A first wedge-shaped block, wherein the first wedge-shaped block is fixedly connected to one end of the driven rack; An active cavity and an active rod, wherein the active cavity is opened on an end of the abutment plate away from the first wedge block, and the active rod is slidably sleeved in the active cavity; A connecting ring, the connecting ring is fixedly sleeved on the movable rod; A spring, wherein the spring is fixedly connected between the connecting ring and the movable cavity; a second wedge-shaped block arranged corresponding to the first wedge-shaped block, wherein the second wedge-shaped block is fixedly connected to the movable rod; A support plate, the support plate is arranged above the abutment plate; A driving frame that penetrates and extends to a position above the support plate, wherein the driving frame is fixedly connected to the second wedge-shaped block; A pressure rod used to fix the blood oxygen test paper against the pressure rod, the pressure rod being slidably mounted on the support plate; A sliding plate and a sliding block, the sliding plate is fixedly connected to the pressing rod, and the sliding block is slidably sleeved on the sliding plate; A towing rod, both ends of the towing rod are pin-connected to the driving frame and the sliding block respectively; A limiting plate for pin-installing the middle end of the towing rod, the limiting plate is fixedly connected to the support plate.
[0012] Preferably, a driving mechanism for driving the lifting and rotation of the fixing mechanism is provided on the mounting bracket.
[0013] Preferably, the driving mechanism includes: A mounting chute, the mounting chute is opened on the mounting bracket; A mounting slider and a driving cylinder, the mounting slider is slidably sleeved in the mounting chute, the driving cylinder is fixedly installed on the mounting chute, and the output end of the driving cylinder is fixedly connected to the mounting slider; A third motor, the third motor is fixedly installed on the mounting slider; A rotating disk driven by the third motor to rotate, the rotating disk is rotatably installed on the mounting slider, the rotating disk is fixedly connected to the support plate, the rotating disk is fixedly connected to the abutting plate, and the rotating disk is fixedly connected to the second motor.
[0014] Compared with the prior art, the present invention has the following advantages: 1. A magnetic plate is provided in the present invention. One end of the blood oxygen test strip containing iron oxide and ferrous ions is pushed to a position above the magnetic plate by a pushing mechanism, and the magnetic plate attracts one end of the blood oxygen test strip containing iron oxide and ferrous ions. Since iron oxide and ferrous ions are not magnetic, while iron ions and magnetite are magnetic, it is judged by the magnetic plate whether the components contained in the end of the blood oxygen test strip for detection are iron ions and magnetite or iron oxide and ferrous ions, thereby ensuring the use effect of the blood oxygen test strip.
[0015] 2. A light emitter and a light receiver are provided in the present invention. Using the working principle that light travels in a straight line in the same homogeneous medium, whether the light receiver receives light is used as the judgment basis for whether the flatness of the blood oxygen test strip is qualified. When the blood oxygen test strip is in a normal state, the surface horizontal plane is at a fixed angle. If the flatness of the blood oxygen test strip is unqualified, the blood oxygen test strip is damp and soft at this time, resulting in wrinkles during the pushing process, thereby avoiding the use of the damp blood oxygen test strip.
[0016] 3. The present invention observes the scratches and color differences on the surface of the blood oxygen test strip through a camera. Compared with observing with the naked eye in the prior art, this technical solution uses multiple cameras for observation, which helps to ensure the accuracy of observing the blood oxygen test strip.
[0017] 4. The present invention is provided with a fixing mechanism for fixedly clamping a blood oxygen test strip, so as to ensure the stability of the blood oxygen test strip, and the driving mechanism is used to drive the fixing mechanism to lift and rotate, thereby cooperating with the camera to achieve comprehensiveness during the detection of the blood oxygen test strip. Description of the Drawings
[0018] Figure 1 It is a schematic structural diagram of a sampling device for detecting a blood oxygen test strip proposed by the present invention; Figure 2 It is a first-angle cross-sectional view of a sampling device for detecting a blood oxygen test strip proposed by the present invention; Figure 3 It is a second-angle cross-sectional view of a sampling device for detecting a blood oxygen test strip proposed by the present invention; Figure 4 It is a third-angle cross-sectional view of a sampling device for detecting a blood oxygen test strip proposed by the present invention; Figure 5 It is a schematic structural diagram of the connection between a partial structure of the driving mechanism and the fixing mechanism of a sampling device for detecting a blood oxygen test strip proposed by the present invention; Figure 6 For the present invention Figure 6 Bottom view; Figure 7 It is a schematic structural diagram of the fixing mechanism of a sampling device for detecting a blood oxygen test strip proposed by the present invention; Figure 8 For the present invention Figure 8 Bottom view; Figure 9 It is a schematic partial structure diagram of the fixing mechanism of a sampling device for detecting a blood oxygen test strip proposed by the present invention.
[0019] In the figure: 1. Test strip box; 2. Mounting plate; 3. Pushing mechanism; 301. Bracket; 302. First motor; 303. Lead screw; 304. Moving slider; 305. Pushing plate; 306. Connecting plate; 4. Magnetic plate; 5. Light emitter; 6. Light receiver; 7. Mounting bracket; 8. Camera; 9. Fixing mechanism; 901. Installation groove; 902. Placement groove; 903. Contact plate; 904. Driven rack; 905. Second motor; 906. Driving gear; 907. First wedge block; 908. Activity cavity; 909. Activity rod; 910. Connecting ring; 911. Spring; 912. Second wedge block; 913. Support plate; 914. Driving frame; 915. Pressing rod; 916. Sliding plate; 917. Sliding block; 918. Traction rod; 919. Limiting plate; 10. Driving mechanism; 1001. Installation chute; 1002. Installation slider; 1003. Driving cylinder; 1004. Third motor; 1005. Rotating disk. Detailed implementation manner
[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.
[0021] Referring to Figures 1-9 , the present invention provides the following preferred embodiments: Embodiment 1. This embodiment provides a sampling device for detecting blood oxygen test strips. The sampling device includes: a mounting plate 2 for mounting a test strip box 1 storing blood oxygen test strips. A discharge port for slidably sleeving the blood oxygen test strips is opened at the lower end of the test strip box 1. It should be noted that the top end of the test strip box 1 can be opened and closed, and can adopt the form of a cover plate or a flip cover to facilitate the operator to store the blood oxygen test strips. A pushing mechanism 3 installed in the mounting plate 2. An installation cavity for installing the pushing mechanism 3 is opened in the mounting plate 2. The pushing mechanism 3 is used to push the blood oxygen test strip out of the test strip box 1.
[0022] The further implementation method is that the pushing mechanism 3 includes a bracket 301, a first motor 302, a lead screw 303 and a moving slider 304, a push plate 305 and a connecting plate 306. Each component is arranged as follows: The bracket 301 is fixedly connected to the mounting plate 2. The first motor 302 is fixedly installed on the bracket 301. The lead screw 303 driven by the first motor 302 is rotatably installed on the inner wall of the installation cavity. The moving slider 304 is installed in cooperation with the lead screw 303. The push plate 305 is slidably sleeved on the discharge port. The connecting plate 306 is fixedly connected between the moving slider 304 and the push plate 305. A guiding long hole for slidably sleeving the connecting plate 306 is opened on the mounting plate 2. The guiding long hole is used to guide and limit the connecting plate 306, which helps to ensure the stability of the connecting plate 306 during movement. A guide rod is fixedly connected between the installation cavity and the bracket 301. A guiding block fixedly connected to the moving slider 304 is arranged on the guide rod. The rotation of the moving slider 304 on the lead screw 303 is restricted by the guiding block and the guide rod, which helps to ensure the stability of the moving slider 304 during movement on the lead screw 303.
[0023] A magnetic plate 4 is installed on the end of the mounting plate 2 away from the test strip box 1. The magnetic plate 4 is used to detect whether the blood oxygen test strip is magnetic, and then determine whether the components contained in the end of the blood oxygen test strip used for detection are iron ions and ferroferric oxide or iron oxide and ferrous ions, thereby ensuring the effectiveness of the blood oxygen test strip. A light emitter 5 and a light receiver 6 are installed on the mounting plate 2. The light emitter 5 and the light receiver 6 are set diagonally. The light emitter 5 and the light receiver 6 are used to detect the flatness of the blood oxygen test strip, using the working principle that light propagates in a straight line in the same uniform medium. When the flatness of the blood oxygen test strip is qualified, the light cannot touch the surface of the blood oxygen test strip. When the receiver 6 does not receive light, there are protrusions on the surface of the blood oxygen test paper that block the light. At this time, the flatness of the blood oxygen test paper is unqualified. The light transmitter 5 and the light receiver 6 are used to judge whether the flatness of the blood oxygen test paper is qualified, and then detect whether the blood oxygen test paper is deformed. The mounting bracket 7 is installed on one side of the mounting plate 2, and the camera 8 is installed on the mounting bracket 7. The camera 8 is used to detect the surface of the blood oxygen test paper, and then determine whether there are large scratches and color differences on the surface of the blood oxygen test paper. It should be noted that: at least four cameras 8 are provided, and observation and detection through multiple cameras 8 help to improve the accuracy of the detection results of the blood oxygen test paper surface.
[0024] It should be noted that the specific models and specifications of the motor, light transmitter 5, light receiver 6 and camera 8 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it is not repeated here.
[0025] Embodiment 2: Based on Embodiment 1, this embodiment further refines the sampling device for blood oxygen test strip detection. In order to realize the automated detection of blood oxygen test strips and improve the comprehensiveness of the camera 8 in detecting the blood oxygen test strips, the specific implementation method is as follows: a fixing mechanism 9 for fixing and clamping the blood oxygen test strip is provided on the mounting bracket 7, and a driving mechanism 10 for driving the fixing mechanism 9 to rise, fall and rotate is provided on the mounting bracket 7.
[0026] In a further embodiment, the fixing mechanism 9 includes a mounting groove 901, a placement groove 902, a contact plate 903, a driven rack 904, a second motor 905, a driving gear 906, a first wedge block 907, an active cavity 908, an active rod 909, a connecting ring 910, a spring 911, a second wedge block 912, a support plate 913, a driving frame 914, a pressure rod 915, a sliding plate 916, a sliding block 917, a traction rod 918 and a limit plate 919, and each component is arranged as follows: The installation groove 901 is formed on the installation plate 2, the placement groove 902 is formed on the installation plate 2, the installation groove 901 communicates with the placement groove 902, the abutting plate 903 is placed in the placement groove 902, the driven rack 904 is slidably sleeved on the abutting plate 903. It should be noted that: the upper surface of the driven rack 904 and the upper surface of the abutting plate 903 are on the same horizontal plane, and the initial state of the end of the driven rack 904 and the abutting plate 903 away from the driving mechanism 10 is on the same horizontal plane, and the end of the abutting plate 903 away from the driving mechanism 10 is on the same horizontal plane as the inner wall of the discharge port. The second motor 905 is located in the installation groove 901, and the driving gear 906 meshing with the driven rack 904 is fixedly installed on the output end of the second motor 905.
[0027] The first wedge block 907 is fixedly connected to one end of the driven rack 904. The movable cavity 908 is formed at the end of the abutting plate 903 away from the first wedge block 907. The movable rod 909 is slidably sleeved in the movable cavity 908. The movable cavity 908 provides a moving space for the vertical movement of the movable rod 909. The connecting ring 910 is fixedly sleeved on the movable rod 909. The spring 911 is fixedly connected between the connecting ring 910 and the movable cavity 908. The second wedge block 912 corresponding to the first wedge block 907 is fixedly connected to the movable rod 909. Under the elastic force of the spring 911, when the second wedge block 912 is not squeezed, it tends to move to the initial state until it is reset. It should be noted that: the support plate 913 is arranged above the abutting plate 903. The driving frame 914 penetrating and extending above the support plate 913 is fixedly connected to the second wedge block 912. The pressing rod 915 for abutting and fixing the blood oxygen test strip is slidably sleeved on the support plate 913. It should be noted that: the support plate 913 is provided with a movable through hole for movably sleeving the pressing rod 915 to provide a moving space for the pressing rod 915. The lower end of the pressing rod 915 is fixedly connected with, the sliding plate 916 is fixedly connected to the pressing rod 915. The sliding block 917 is slidably sleeved on the sliding plate 916. The two ends of the traction rod 918 are respectively pin-connected to the driving frame 914 and the sliding block 917. The limiting plate 919 for pin-installing the middle end of the traction rod 918 is fixedly connected to the support plate 913. The middle end of the traction rod 918 is restricted by the support plate 913, so that the traction rod 918 can only rotate based on the support plate 913, and the sliding plate 916 and the sliding block 917 provide a moving space for the lower end of the traction rod 918, so that when the traction rod 918 rotates based on the support plate 913, its lower end will drive the pressing rod 915 to move downward and cause abutting and extrusion on the blood oxygen test strip, which helps to ensure the stability of the blood oxygen test strip on the driven rack 904.
[0028] Among them, the driving mechanism 10 includes an installation chute 1001, an installation slider 1002, a driving cylinder 1003, a third motor 1004 and a rotating disk 1005, and the components are arranged as follows: The installation chute 1001 is formed on the installation bracket 7. The installation slider 1002 is slidably sleeved in the installation chute 1001. The driving cylinder 1003 is fixedly installed on the installation chute 1001. The output end of the driving cylinder 1003 is fixedly connected to the installation slider 1002. The third motor 1004 is fixedly installed on the installation slider 1002. The rotating disk 1005 driven by the third motor 1004 to rotate is rotatably installed on the installation slider 1002. The rotating disk 1005 is fixedly connected to the support plate 913, the rotating disk 1005 is fixedly connected to the abutting plate 903, and the rotating disk 1005 is fixedly connected to the second motor 905. The third motor 1004 drives the blood oxygen test strip clamped and fixed by the fixing mechanism 9 to flip through the rotating disk 1005, so that the operator does not need to manually flip the blood oxygen test strip, which helps to improve the automation degree during the detection of the blood oxygen test strip.
[0029] It should be noted that the specific model specifications of the motor and the cylinder need to be selected according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated here.
[0030] The functional principle of the present invention can be described through the following operation modes: Start the first motor 302. The first motor 302 drives the lead screw 303 to rotate, so that the moving slider 304 moves horizontally on the lead screw 303. The moving slider 304 drives the push plate 305 through the connecting plate 306 to push the blood oxygen test strip to move in the direction outside the test strip box 1. The end of the blood oxygen test strip containing iron oxide and ferrous ions moves to the position above the magnetic plate 4. Start the light emitter 5 to emit light. When the light receiver 6 receives the light, the flatness of the blood oxygen test strip is qualified. When the light receiver 6 does not receive the light, the flatness of the blood oxygen test strip is unqualified. Start the second motor 905 to drive the driving gear 906 to rotate. The driving gear 906 drives the driven rack 904 to move horizontally. The driven rack 904 drives the first wedge block 907 to move horizontally. The first wedge block 907 abuts against the second wedge block 912. The inclined surface of the first wedge block 907 is used to squeeze the second wedge block 912 to move vertically upward. The second wedge block 912 drives the movable rod 909 to move vertically upward. The movable rod 909 drives the connecting ring 910 to move vertically upward, stretching the tension spring 911. The second wedge block 912 drives the driving frame 914 to move vertically upward. The driving frame 914 drives one end of the traction rod 918 to move vertically upward. The middle end of the traction rod 918 is restricted by the support plate 913 to rotate. The other end of the traction rod 918 drives the sliding block 917 to slide horizontally in the sliding plate 916. At this time, the pressing rod 915 moves vertically downward under the traction of the traction rod 918. The pressing rod 915 abuts against the blood oxygen test strip, so as to realize the fixing operation of the blood oxygen test strip. Start the driving cylinder 1003. The driving cylinder 1003 drives the mounting slider 1002 to move vertically downward in the mounting chute 1001. The mounting slider 1002 drives the rotating disk 1005 to move vertically upward. The rotating disk 1005 drives the blood oxygen test strip to move vertically upward through the fixing mechanism 9. Observe whether the blood oxygen test strip deforms under the influence of magnetism through the camera 8. And the blood oxygen test strip has a certain hardness. Therefore, the blood oxygen test strip will not deform greatly during the vertical upward movement. If the blood oxygen test strip deforms during the vertical upward movement, at this time, the blood oxygen test strip is in a state of being damp and soft. Observe whether there are scratches and color differences on the upper surface of the blood oxygen test strip through the camera 8. Start the third motor 1004. The third motor 1004 drives the rotating disk 1005 to rotate. The rotating disk 1005 drives the blood oxygen test strip to rotate through the fixing mechanism 9, thereby ensuring the comprehensiveness of the camera 8 when detecting the surface of the blood oxygen test strip.
[0031] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.
Claims
1. A sampling device for blood oxygen test strip detection, characterized in that, The sampling device comprises: A mounting plate (2) for mounting a test strip box (1) storing blood oxygen test strips; A pushing mechanism (3) installed in the mounting plate (2), the pushing mechanism (3) being used to push the blood oxygen test strip out of the test strip box (1); A magnetic plate (4) mounted on an end of the mounting plate (2) away from the test strip box (1), the magnetic plate (4) being used to detect whether the blood oxygen test strip has magnetism; A light transmitter (5) and a light receiver (6) mounted on the mounting plate (2), wherein the light transmitter (5) and the light receiver (6) are arranged diagonally, and the light transmitter (5) and the light receiver (6) are used to detect the flatness of the blood oxygen test paper; A mounting bracket (7) mounted on one side of the mounting plate (2); A camera (8) mounted on the mounting bracket (7), the camera (8) being used to detect the surface of the blood oxygen test paper.
2. The sampling device for blood oxygen test strip detection according to claim 1, wherein, The lower end of the test strip box (1) is provided with an outlet for slidingly inserting the blood oxygen test strip, and the mounting plate (2) is provided with an installation cavity for installing the pushing mechanism (3).
3. The sampling device for blood oxygen test strip detection according to claim 2, characterized in that, The pushing mechanism (3) comprises: A bracket (301), the bracket (301) being fixedly connected to the mounting plate (2); A first motor (302), the first motor (302) being fixedly mounted on the bracket (301); a lead screw (303) and a movable slider (304) driven by the first motor (302), the lead screw (303) being rotatably mounted on the inner wall of the mounting cavity, and the movable slider (304) being matched with the lead screw (303); A push plate (305) and a connecting plate (306), wherein the push plate (305) is slidably mounted on the discharge port, and the connecting plate (306) is fixedly connected between the movable slider (304) and the push plate (305).
4. The sampling device for blood oxygen test strip detection according to claim 3, characterized in that, The mounting plate (2) is provided with a long guide hole for slidingly fitting the connecting plate (306), a guide rod is fixedly connected between the mounting cavity and the bracket (301), and a guide block fixedly connected to the movable slider (304) is provided on the guide rod.
5. The sampling device for blood oxygen test strip detection according to claim 1, characterized in that, The mounting bracket (7) is provided with a fixing mechanism (9) for fixing and clamping the blood oxygen test paper.
6. The sampling device for blood oxygen test strip detection according to claim 5, characterized in that, The fixing mechanism (9) comprises: A connected installation groove (901) and a placement groove (902), wherein the installation groove (901) is provided on the installation plate (2), and the placement groove (902) is provided on the installation plate (2); A resistance plate (903), the resistance plate (903) being placed in the placement groove (902); A driven rack (904), the driven rack (904) being slidably mounted on the abutment plate (903); a second motor (905), the second motor (905) being located in the mounting slot (901); A driving gear (906) meshingly connected to the driven rack (904), the driving gear (906) being fixedly mounted on the output end of the second motor (905).
7. The sampling device for blood oxygen test strip detection according to claim 6, wherein, The fixing mechanism (9) further comprises: a first wedge block (907), the first wedge block (907) being fixedly connected to one end of the driven rack (904); An active cavity (908) and an active rod (909), wherein the active cavity (908) is opened on an end of the abutment plate (903) away from the first wedge block (907), and the active rod (909) is slidably sleeved in the active cavity (908); A connecting ring (910), the connecting ring (910) being fixedly sleeved on the movable rod (909); a spring (911), the spring (911) being fixedly connected between the connecting ring (910) and the movable chamber (908); a second wedge-shaped block (912) arranged corresponding to the first wedge-shaped block (907), the second wedge-shaped block (912) being fixedly connected to the movable rod (909); A support plate (913), the support plate (913) being arranged above the abutment plate (903); a driving frame (914) penetrating through and extending to a position above the support plate (913), wherein the driving frame (914) is fixedly connected to the second wedge-shaped block (912); A pressure rod (915) for fixing the blood oxygen test paper against the pressure rod, the pressure rod (915) being slidably mounted on the support plate (913); A sliding plate (916) and a sliding block (917), wherein the sliding plate (916) is fixedly connected to the pressure rod (915), and the sliding block (917) is slidably mounted on the sliding plate (916); A traction rod (918), wherein both ends of the traction rod (918) are respectively pin-connected to the driving frame (914) and the sliding block (917); A limit plate (919) is used for pin-mounting the middle end of the traction rod (918), and the limit plate (919) is fixedly connected to the support plate (913).
8. The sampling device for blood oxygen test strip detection according to claim 7, characterized in that, The mounting bracket (7) is provided with a driving mechanism (10) for driving the fixing mechanism (9) to rise, fall and rotate.
9. The sampling device for blood oxygen test strip detection according to claim 8, characterized in that, The driving mechanism (10) comprises: An installation slide groove (1001), wherein the installation slide groove (1001) is provided on the installation bracket (7); A mounting slide block (1002) and a driving cylinder (1003), wherein the mounting slide block (1002) is slidably mounted in the mounting slide groove (1001), the driving cylinder (1003) is fixedly mounted on the mounting slide groove (1001), and an output end of the driving cylinder (1003) is fixedly connected to the mounting slide block (1002); a third motor (1004), the third motor (1004) being fixedly mounted on the mounting slide block (1002); A rotating disk (1005) driven to rotate by the third motor (1004), the rotating disk (1005) being rotatably mounted on the mounting slider (1002), the rotating disk (1005) being fixedly connected to the support plate (913), the rotating disk (1005) being fixedly connected to the abutment plate (903), and the rotating disk (1005) being fixedly connected to the second motor (905).