Syringe clamping mechanism of RPR separating device

By designing a syringe clamping mechanism for the RPR separation device, the problem of traditional clamping mechanisms being unable to securely clamp tilted needles was solved, achieving stable clamping and cleaning of the syringe, thus ensuring detection effectiveness and biosafety.

CN120992255APending Publication Date: 2025-11-21WUHAN BIYING BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202511007359.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-22
Publication Date
2025-11-21

AI Technical Summary

Technical Problem

Traditional syringe clamping mechanisms cannot securely hold tilted needle syringes, resulting in extraction residues, affecting detection results, and potentially causing biological contamination.

Method used

A syringe clamping mechanism for an RPR separation device was designed, including a clamping frame, a pull rod, a needle, a clamping mounting structure, a drive transmission structure, a clamping fixing structure, and a disassembly and cleaning structure. The syringe is stably clamped, extracted, and cleaned by an electric telescopic rod and a motor drive.

Benefits of technology

It achieves stable clamping and cleaning of the syringe, avoids extraction residue, ensures detection results, and reduces the risk of biocontamination.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to an injector clamping mechanism of an RPR separating device, and belongs to the technical field of clamping mechanisms, the injector clamping mechanism comprises a clamping frame, the clamping frame is U-shaped, and the clamping frame and the bottom of a separating machine are fixedly installed; the injector is used for extracting a sample solution; the drawing rod is composed of a round block at the top, a round rod in the middle and a piston at the bottom, the piston is located in the injector, and the round rod is in sliding connection with the inner wall of the top of the injector; the needle head is fixedly connected to the top of the drawing rod; and a clamping installation structure. By arranging the driving transmission structure and the clamping and fixing structure, an injector can be clamped, meanwhile, the injector can be driven to be close to the sampling tube and carry out extraction and sampling on the interior of the sampling tube, meanwhile, the injector can rotate in the sampling process, and then a needle head of the injector can rotate in the inclined direction; furthermore, the interior of the sampling tube can be sampled.
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Description

Technical Field

[0001] This invention relates to the field of clamping mechanism technology, and specifically to a syringe clamping mechanism for an RPR separation device. Background Technology

[0002] The separator separates the serum into layers by centrifugation, then extracts the desired serum layer for testing. The syringe is used for the extraction of serum after separation. During the automated extraction process, a clamping mechanism is required to test the syringe. During syringe extraction, a clamping mechanism is often needed to hold the syringe while a driving mechanism is required to drive the syringe for injection. In this process, syringe clamping mechanisms with special structures and functions can be applied. In practice, traditional syringe clamping structures can only clamp the syringe. When the syringe needle is tilted, the tilted needle may cause residue during the extraction process, which will affect the actual detection effect. At the same time, the residual sample liquid cannot be specially treated after being recovered with the sampling tube, which can easily cause biological contamination and is very inconvenient. To address the aforementioned problems, this application proposes a syringe clamping mechanism for an RPR separation device. Summary of the Invention

[0003] This invention addresses the technical problems existing in the prior art by providing a syringe clamping mechanism for an RPR separation device.

[0004] The technical solution of this invention to solve the above-mentioned technical problems is as follows: a syringe clamping mechanism for an RPR separation device, comprising a clamping frame, the clamping frame being U-shaped and fixedly installed to the bottom of the separator; a syringe for extracting sample liquid; a pull rod, the pull rod consisting of a top circular block, a middle circular rod, and a bottom piston, the piston being located inside the syringe, and the circular rod being slidably connected to the top inner wall of the syringe; a needle, the needle being fixedly connected to the top of the pull rod; and a clamping mounting structure, the clamping mounting structure being disposed on one side of the clamping frame, the clamping mounting structure including clamping plates, the number of which is two. For opposing clamping; a drive transmission structure, the drive transmission structure being disposed on one side and above the clamping frame, the drive transmission structure including a first electric telescopic rod and a first motor, the first electric telescopic rod being used for up-and-down movement, the first motor being used for rotational movement; a clamping and fixing structure, the clamping and fixing structure being fixedly connected to the connecting piece on the drive transmission structure, the clamping and fixing structure including U-shaped clamping blocks, the number of the U-shaped clamping blocks being two and used for opposing clamping; a disassembly and cleaning structure, the disassembly and cleaning structure being disposed on the connecting piece of the drive transmission structure, the disassembly and cleaning structure including an annular frame, the inner wall of the annular frame being fixedly connected with bristles.

[0005] Preferably, the clamping and mounting structure further includes a first rectangular frame fixedly connected to one side of the outer surface of the clamping frame. A first screw is rotatably connected between the two sides of the inner wall of the first rectangular frame. One end of the first screw passes through the first rectangular frame and is fixedly connected to an operating block. The two ends of the first screw have opposite thread directions. Two first screw hole blocks are symmetrically threaded on the outer surface of the first screw. The outer surface of the first screw hole blocks is slidably connected to the inner wall of the first rectangular frame.

[0006] By setting the first rectangular frame, it serves to connect the clamping frame. Under the action of the first screw, it can move in opposite directions with the first screw hole block, thereby playing a transmission role and enabling the clamping plates to move in opposite directions for clamping.

[0007] Preferably, a first connecting rod is fixedly connected to one side of the outer surface of the first screw hole block, and the end of the first connecting rod away from the first screw hole block is fixedly connected to one side of the outer surface of the clamping plate. The first connecting rod is slidably disposed on the inner wall of the clamping frame, and a first protrusion is fixedly connected to one side of the outer surface of the clamping plate.

[0008] By setting the first connecting rod, it can be connected to the first screw hole block, and then move in the opposite direction with the first screw hole block, which in turn drives the clamping plate to move in the opposite direction, and then fixes it to the base where the sample tube is placed. At the same time, under the action of the first protrusion, the friction of the clamping plate is increased, which can fix it firmly.

[0009] Preferably, the drive transmission structure further includes a mounting block fixedly connected to one side of the outer surface of the clamping frame, a support rod fixedly connected to the top of the outer surface of the mounting block, a mounting rectangular plate fixedly connected to one end of the support rod, and the top of the outer surface of the mounting rectangular plate fixedly installed with the first electric telescopic rod.

[0010] By setting up the mounting block, it can be connected to the clamping frame. At the same time, under the action of the support rod, it can connect the mounting rectangular plate and other components, thereby enabling the installation of the first electric telescopic rod.

[0011] Preferably, the output end of the first electric telescopic rod is fixedly connected to a mounting frame, the inner wall of the mounting frame is fixedly connected to the first motor, and the output end of the first motor is fixedly connected to a connecting block.

[0012] By setting up an installation frame, an installation platform can be provided for the first motor, which can then be installed and fixed with the clamping and fixing structure under the action of the connecting block, thereby driving the clamping and fixing structure to move.

[0013] Preferably, the clamping and fixing structure further includes a second rectangular frame fixedly connected to the bottom of the outer surface of the connecting circular block. A second motor is fixedly installed on one side of the outer surface of the second rectangular frame. A second screw is fixedly connected to the output end of the second motor. The two ends of the second screw have opposite thread directions. Two second screw hole blocks are symmetrically threaded on the outer surface of the second screw. The outer surface of the second screw hole blocks is slidably connected to the inner wall of the second rectangular frame.

[0014] By setting a second rectangular frame, it can be fixed to the connecting circular block. At the same time, under the action of the second screw, the second screw hole block can move towards each other, thereby cooperating with other components for transmission.

[0015] Preferably, a second connecting rod is fixedly connected to the bottom of the outer surface of the second screw hole block, and the end of the second connecting rod away from the second screw hole block is fixedly connected to the U-shaped clamping block. A second protrusion is fixedly connected to the inner wall of the U-shaped clamping block, and L-shaped blocks are fixedly connected to both sides of one side of the U-shaped clamping block. A threaded auxiliary rod is threadedly connected to the inner wall of the L-shaped block, and a rubber extrusion block is fixedly connected to one end of the threaded auxiliary rod.

[0016] By incorporating a second connecting rod, which engages with the second screw hole block to move the U-shaped clamping block, the syringe can be auxiliaryly clamped and fixed on both sides. Simultaneously, the second protrusion enhances the stability of the fixation. With the assistance of components such as the threaded auxiliary rod, the syringe can be clamped from both sides opposite the U-shaped clamping block, further increasing the clamping effect. Preferably, an auxiliary mounting plate is fixedly connected to one side of the outer surface of the second rectangular frame, a second electric telescopic rod is fixedly installed on the top of the auxiliary mounting plate, a connecting auxiliary plate is fixedly connected to the output end of the second electric telescopic rod, the connecting auxiliary plate is rectangular, and a limit rod is fixedly connected to one side of the outer surface of the connecting auxiliary plate. The number of the limit rods is four, and the four limit rods are set at the four corners of the connecting auxiliary plate.

[0017] Under the action of the second electric telescopic rod, the connecting auxiliary plate and other components can be moved, so that the circular block at the top of the pull rod can be positioned between the four limit rods. At this time, there are two limit rods at the top and bottom of the circular block, which in turn can drive the pull rod to move up and down under the action of the second electric telescopic rod, thereby completing the extraction.

[0018] Preferably, the disassembly and cleaning structure further includes a sliding block slidably disposed on the outer surface of the vertical part of the support link. A threaded extrusion rod is threadedly connected to one inner wall of the sliding block. A rectangular frame is fixedly connected to one side of the outer surface of the sliding block. A rectangular block is snapped into the inner wall of the rectangular frame. A first insertion hole is opened on both inner walls of the rectangular frame. A second insertion hole is opened on the inner wall of the rectangular block. A threaded insertion rod is inserted into the inner walls of the first and second insertion holes. A fixing nut is threadedly connected to one end of the outer surface of the threaded insertion rod.

[0019] By setting a sliding block, the position of components such as the rectangular card frame can be adjusted on the support rod. At the same time, the ring frame and other components can be disassembled and assembled with the cooperation of the rectangular card block and the rectangular card frame, which facilitates maintenance and replacement.

[0020] Preferably, an auxiliary connecting rod is fixedly connected to one side of the outer surface of the rectangular card block, and one end of the outer surface of the auxiliary connecting rod is fixedly connected to the outer surface of the annular frame.

[0021] The inside of the ring frame is equipped with bristles, which can clean the outer surface of the needle at the bottom as the syringe moves up and down.

[0022] The beneficial effects of this invention are: By setting up a drive transmission structure and a clamping and fixing structure, the syringe can be clamped, and at the same time, the syringe can be driven to approach the sampling tube and extract samples into the sampling tube. During the sampling process, the syringe can be rotated, which in turn allows the syringe needle to rotate in the tilt direction, thereby allowing sampling into the sampling tube.

[0023] With the help of the U-shaped clamping block and the rubber extrusion block, the syringe can be clamped more securely, and with the help of the limiting rod and other components, the syringe can be extracted.

[0024] By setting up a clamping installation structure, the entire device and the base where the sampling tube is placed can be installed and fixed, thus facilitating use and maintenance.

[0025] By setting up a disassembly and cleaning structure, the ring frame and bristles can be disassembled and assembled, making it convenient to clean the outer surface of the syringe needle after extraction. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the clamping frame and related parts of the present invention; Figure 3 This is a schematic diagram of the first rectangular frame and its related parts of the present invention; Figure 4 This is a schematic diagram of the clamping plate and related parts of the present invention; Figure 5 This is a schematic diagram of the supporting connecting rod and related parts of the present invention; Figure 6 This is a schematic diagram of the mounting frame and related parts of the present invention; Figure 7 This is a schematic diagram of the second rectangular frame and its related parts of the present invention; Figure 8 This is a schematic diagram of the second connecting rod and its related parts of the present invention; Figure 9 This is a schematic diagram of the limiting rod and related parts of the present invention; Figure 10 This is a schematic diagram of the rectangular card block and its related parts of the present invention.

[0027] The attached diagram lists the components represented by each number as follows: 1. Clamping frame; 2. Syringe; 3. Pull-out lever; 4. Needle; 5. Clamping and mounting structure; 51. First rectangular frame; 52. First screw; 53. Operating block; 54. First screw hole block; 55. First connecting rod; 56. Clamping plate; 57. First protrusion; 6. Drive transmission structure; 61. Mounting block; 62. Supporting rod; 63. Mounting rectangular plate; 64. First electric telescopic rod; 65. Mounting frame; 66. First motor; 67. Connecting round block; 7. Clamping and fixing structure; 71. Second rectangular frame; 72. Second motor; 73. Second screw; 74. Second screw hole block; 75. Second connecting rod; 76. U-shaped clamping block; 77. Second protrusion; 78. L-shaped block; 79. Threaded auxiliary rod; 710. Rubber extrusion block; 711. Mounting auxiliary plate; 712. Second electric telescopic rod; 713. Connecting auxiliary plate; 714. Limiting rod; 8. Disassembly and cleaning structure; 81. Sliding block; 82. Threaded extrusion rod; 83. Rectangular frame; 84. Rectangular block; 85. First insertion hole; 86. Second insertion hole; 87. Threaded insertion rod; 88. Fixing nut; 89. Annular frame; 810. Brush bristles; 811. Auxiliary connecting rod. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0030] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use the invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the invention can be made without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the invention with unnecessary detail. Therefore, the invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0031] Reference Figure 1-10A syringe clamping mechanism for an RPR separation device includes a clamping frame 1, which is U-shaped and fixedly installed to the bottom of the separator; a syringe 2 for extracting sample solution; a pull rod 3, which consists of a circular block at the top, a circular rod in the middle, and a piston at the bottom. The piston is located inside the syringe 2 and can slide inside the syringe 2. The piston is made of rubber, thus providing good sealing. The circular rod is slidably connected to the inner wall of the top of the syringe 2; a needle 4, which is fixedly connected to the top of the pull rod 3. The bottom end of the needle 4 is an inclined needle with an angled tip; a clamping and mounting structure 5, which is located on one side of the clamping frame 1, includes two clamping plates 56 for clamping in opposite directions; the clamping plates 56 are located inside the clamping frame 1, thus facilitating the clamping of the base on which the sample tube is placed; and a drive transmission structure 6, which is located within the clamping frame 1. On one side and above frame 1, the drive transmission structure 6 includes a first electric telescopic rod 64 and a first motor 66. The first electric telescopic rod 64 is used for up-and-down movement, and the first motor 66 is used for rotational movement. A clamping and fixing structure 7 is fixedly connected to the connecting piece on the drive transmission structure 6. The clamping and fixing structure 7 includes two U-shaped clamps 76, which are used for clamping towards each other. The U-shaped clamps 76 can limit the movement of the sides, top, and bottom respectively. A disassembly and cleaning structure 8 is installed on the connecting piece of the drive transmission structure 6. The disassembly and cleaning structure 8 includes an annular frame 89. Brush bristles 810 are fixedly connected to the inner wall of the annular frame 89. The brush bristles 810 inside the annular frame 89 can assist in cleaning the outer surface of the needle 4. Specifically, the syringe 2, under the action of the drive transmission structure 6, can pass through the inner wall of the annular frame 89 during its up-and-down movement, thus facilitating cleaning.

[0032] Reference Figure 3 The clamping and mounting structure 5 also includes a first rectangular frame 51 fixedly connected to one side of the outer surface of the clamping frame 1. The first rectangular frame 51 can be connected to the clamping frame 1, and then connected and installed with components such as the first screw 52. The first screw 52 is rotatably connected between the two sides of the inner wall of the first rectangular frame 51. One end of the first screw 52 passes through the first rectangular frame 51 and is fixedly connected to an operating block 53. The operating block 53 can operate the first screw 52. The two ends of the first screw 52 have opposite threads. The outer surface of the first screw 52 is symmetrically threaded with two first screw hole blocks 54. The first screw 52 with opposite threads can drive the two first screw hole blocks 54 on its outer surface to move towards each other. The outer surface of the first screw hole block 54 is slidably connected to the inner wall of the first rectangular frame 51. When the first screw hole block 54 is slidably connected to the first rectangular frame 51, the first screw hole block 54 can be limited to prevent it from rotating with the first screw 52.

[0033] Reference Figure 3 and Figure 4 A first connecting rod 55 is fixedly connected to one side of the outer surface of the first screw hole block 54. The end of the first connecting rod 55 away from the first screw hole block 54 is fixedly connected to one side of the outer surface of the clamping plate 56. The first connecting rod 55 can connect the first screw hole block 54 and the clamping plate 56, so that the clamping plate 56 can move with the first connecting rod 55. The first connecting rod 55 is slidably disposed on the inner wall of the clamping frame 1. A first protrusion 57 is fixedly connected to one side of the outer surface of the clamping plate 56. The first protrusion 57 can increase the friction of the clamping plate 56, thereby making the clamping and fixing of the clamping plate 56 more stable.

[0034] Reference Figure 1 and Figure 5 The drive transmission structure 6 also includes a mounting block 61 fixedly connected to one side of the outer surface of the clamping frame 1. A support rod 62 is fixedly connected to the top of the outer surface of the mounting block 61. The mounting block 61 can connect the support rod 62 to the clamping frame 1, etc. One end of the support rod 62 is fixedly connected to a mounting rectangular plate 63. The top of the outer surface of the mounting rectangular plate 63 is fixedly installed with the first electric telescopic rod 64. The mounting rectangular plate 63 can install the first electric telescopic rod 64.

[0035] Reference Figure 5 and Figure 6 The output end of the first electric telescopic rod 64 is fixedly connected to a mounting frame 65. The inner wall of the mounting frame 65 is fixedly connected to the first motor 66. The mounting frame 65 can provide a mounting platform for the first motor 66. The output end of the first motor 66 is fixedly connected to a connecting block 67. The connecting block 67 is a connecting piece between the clamping and fixing structure 7 and the drive transmission structure 6.

[0036] Reference Figure 1 and Figure 7 The clamping and fixing structure 7 also includes a second rectangular frame 71 fixedly connected to the bottom of the outer surface of the connecting block 67. The second rectangular frame 71 can connect the connecting block 67 and the second motor 72 and other components. The second motor 72 is fixedly installed on one side of the outer surface of the second rectangular frame 71. The second motor 72 provides driving force to the second screw 73. The output end of the second motor 72 is fixedly connected to the second screw 73. The two ends of the second screw 73 have opposite thread directions. The outer surface of the second screw 73 is symmetrically threaded with two second screw hole blocks 74. The opposite thread directions of the second screw 73 can drive the second screw hole blocks 74 to move towards each other. The outer surface of the second screw hole blocks 74 is slidably connected to the inner wall of the second rectangular frame 71. The sliding of the second screw hole blocks 74 on the inner wall of the second rectangular frame 71 can prevent the second screw hole blocks 74 from rotating with the second screw 73.

[0037] Reference Figure 7 and Figure 8A second connecting rod 75 is fixedly connected to the bottom of the outer surface of the second screw hole block 74. The end of the second connecting rod 75 away from the second screw hole block 74 is fixedly connected to the U-shaped clamping block 76. The second connecting rod 75 can connect the second screw hole block 74 and the U-shaped clamping block 76. A second protrusion 77 is fixedly connected to the inner wall of the U-shaped clamping block 76. The second protrusion 77 can increase the friction of the U-shaped clamping block 76. L-shaped blocks 78 are fixedly connected to both sides of one side of the U-shaped clamping block 76. The L-shaped blocks 78 can connect to components such as the threaded auxiliary rod 79 and the rubber extrusion block 710. The threaded auxiliary rod 79 is threadedly connected to the inner wall of the L-shaped block 78. One end of the threaded auxiliary rod 79 is fixedly connected to the rubber extrusion block 710. The threaded auxiliary rod 79 can drive the rubber extrusion block 710 to move, thereby fixing the syringe 2.

[0038] Reference Figure 7 and Figure 9 A mounting plate 711 is fixedly connected to one side of the outer surface of the second rectangular frame 71. The mounting plate 711 can connect to components such as the second electric telescopic rod 712. The second electric telescopic rod 712 is fixedly installed on the top of the mounting plate 711. A connecting plate 713 is fixedly connected to the output end of the second electric telescopic rod 712. The second electric telescopic rod 712 can drive the connecting plate 713 to move. The connecting plate 713 is rectangular. A limiting rod 714 is fixedly connected to one side of the outer surface of the connecting plate 713. The limiting rod 714 can limit the circular block at the top of the pull rod 3. There are four limiting rods 714, which are set at the four corners of the connecting plate 713.

[0039] Reference Figure 5 and Figure 10 The disassembly and cleaning structure 8 also includes a sliding block 81 slidably disposed on the outer surface of the vertical portion of the support link 62. The support link 62 is the connecting part between the disassembly and cleaning structure 8 and the drive transmission structure 6. A threaded clamping rod 82 is threadedly connected to one inner wall of the sliding block 81. The threaded clamping rod 82 can fix the position of the sliding block 81. A rectangular frame 83 is fixedly connected to one side of the outer surface of the sliding block 81. A rectangular block 84 is engaged with the inner wall of the rectangular frame 83. The rectangular block 84 and the rectangular frame 83 can engage. This allows for the disassembly and assembly of components such as the auxiliary connecting rod 811. The inner walls of both sides of the rectangular frame 83 are provided with first insertion holes 85, and the inner wall of the rectangular block 84 is provided with second insertion holes 86. Threaded rods 87 are inserted into the inner walls of the first insertion holes 85 and the second insertion holes 86. The threaded rods 87 can be inserted into the inner walls of the first insertion holes 85 and the second insertion holes 86, and then, together with the fixing nut 88, the rectangular block 84 and the rectangular frame 83 are fixed. The outer surface of the threaded rod 87 is threaded with a fixing nut 88 at one end.

[0040] Reference Figure 10An auxiliary connecting rod 811 is fixedly connected to one side of the outer surface of the rectangular card block 84. One end of the outer surface of the auxiliary connecting rod 811 is fixedly connected to the outer surface of the annular frame 89. The auxiliary connecting rod 811 can fix the annular frame 89 and the bristles 810 and other components.

[0041] Working principle: The operator inserts the circular block at the top of the pull rod 3 between the four limiting rods 714. At this time, the syringe 2 is positioned between the two U-shaped clamps 76. The second motor 72 is then activated, causing the second screw 73 to rotate, which in turn moves the second screw hole block 74. This causes the second screw hole block 74 to move the second connecting rod 75 and the U-shaped clamps 76, allowing the U-shaped clamps 76 to fix the top, bottom, and sides of the syringe 2. The threaded auxiliary rod 79 is then rotated, causing the threaded auxiliary rod 79 to move the rubber extrusion block 710, further securing the syringe 2. Under the action of the first electric telescopic rod 64, the needle 4 and syringe 2 can move up and down, allowing them to be inserted into the sample tube. The second electric telescopic rod 712 and the first motor 66 are then activated, causing the second electric telescopic rod 712 to move the connecting auxiliary plate 713 and the limiting rod 714 up and down, which in turn moves the pull rod 3 for extraction. Simultaneously, under the action of the first motor 66, the second... The rotation of the rectangular frame 71 causes the U-shaped clamping block 76 and other components indirectly mounted to the second rectangular frame 71 to rotate, which in turn causes the syringe 2 to rotate, allowing the needle 4 to rotate during extraction. When cleaning the needle is required, the sliding block 81 is pushed, allowing it to slide on the support rod 62. After sliding to the appropriate position, the threaded compression rod 82 is rotated to fix it. At this time, the rectangular clamping block 84 is inserted into the inner wall of the rectangular clamping frame 83, and the threaded insertion rod 87 is inserted into the first insertion hole 85 and the second insertion hole 86. The inner wall of the insertion hole 86 is then used to fix the fixing nut 88 and the threaded insertion rod 87. At this time, the syringe 2 is controlled to move up and down so that the needle 4 can pass through the annular frame 89 and be cleaned by the action of the bristles 810. When it is necessary to fix it to the base where the sample tube is located, the operating block 53 is rotated so that the first screw 52 can rotate, which can drive the first screw hole block 54 to move, which can drive the first connecting rod 55 and the clamping plate 56 to move, which can then cooperate with the first protrusion 57 to clamp and fix the two sides of the base.

[0042] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0043] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A syringe clamping mechanism for an RPR separation device, characterized in that, include: The clamping frame (1) is U-shaped and is fixedly installed to the bottom of the separator; Syringe (2), the syringe (2) being used to extract sample solution; The pull rod (3) consists of a circular block at the top, a circular rod in the middle and a piston at the bottom. The piston is located inside the syringe (2) and the circular rod is slidably connected to the inner wall of the top of the syringe (2). The needle (4) is fixedly connected to the top of the pull rod (3); A clamping mounting structure (5) is provided on one side of the clamping frame (1). The clamping mounting structure (5) includes two clamping plates (56) for clamping in opposite directions. The drive transmission structure (6) is disposed on one side and above the clamping frame (1). The drive transmission structure (6) includes a first electric telescopic rod (64) and a first motor (66). The first electric telescopic rod (64) is used for up and down movement, and the first motor (66) is used for rotational movement. A clamping and fixing structure (7) is fixedly connected to a connector on a drive transmission structure (6). The clamping and fixing structure (7) includes two U-shaped clamps (76) for clamping in opposite directions. The disassembly and assembly cleaning structure (8) is set on the connecting part of the drive transmission structure (6). The disassembly and assembly cleaning structure (8) includes an annular frame (89), and the inner wall of the annular frame (89) is fixedly connected with bristles (810).

2. The syringe clamping mechanism of the RPR separation device according to claim 1, characterized in that, The clamping and mounting structure (5) further includes a first rectangular frame (51) fixedly connected to one side of the outer surface of the clamping frame (1). A first screw (52) is rotatably connected between the two sides of the inner wall of the first rectangular frame (51). One end of the first screw (52) passes through the first rectangular frame (51) and is fixedly connected to an operating block (53). The two ends of the first screw (52) have opposite thread directions. Two first screw hole blocks (54) are symmetrically threaded on the outer surface of the first screw (52). The outer surface of the first screw hole block (54) is slidably connected to the inner wall of the first rectangular frame (51).

3. The syringe clamping mechanism of the RPR separation device according to claim 2, characterized in that, A first connecting rod (55) is fixedly connected to one side of the outer surface of the first screw hole block (54). The end of the first connecting rod (55) away from the first screw hole block (54) is fixedly connected to one side of the outer surface of the clamping plate (56). The first connecting rod (55) is slidably disposed on the inner wall of the clamping frame (1). A first protrusion (57) is fixedly connected to one side of the outer surface of the clamping plate (56).

4. The syringe clamping mechanism of the RPR separation device according to claim 1, characterized in that, The drive transmission structure (6) further includes a mounting block (61) fixedly connected to one side of the outer surface of the clamping frame (1). A support rod (62) is fixedly connected to the top of the outer surface of the mounting block (61). A mounting rectangular plate (63) is fixedly connected to one end of the support rod (62). The top of the outer surface of the mounting rectangular plate (63) is fixedly installed with the first electric telescopic rod (64).

5. The syringe clamping mechanism of the RPR separation device according to claim 1, characterized in that, The output end of the first electric telescopic rod (64) is fixedly connected to a mounting frame (65), the inner wall of the mounting frame (65) is fixedly connected to the first motor (66), and the output end of the first motor (66) is fixedly connected to a connecting block (67).

6. The syringe clamping mechanism of the RPR separation device according to claim 5, characterized in that, The clamping and fixing structure (7) further includes a second rectangular frame (71) fixedly connected to the bottom of the outer surface of the connecting round block (67). A second motor (72) is fixedly installed on one side of the outer surface of the second rectangular frame (71). A second screw (73) is fixedly connected to the output end of the second motor (72). The two ends of the second screw (73) have opposite thread directions. Two second screw hole blocks (74) are symmetrically threaded on the outer surface of the second screw (73). The outer surface of the second screw hole blocks (74) is slidably connected to the inner wall of the second rectangular frame (71).

7. The syringe clamping mechanism of the RPR separation device according to claim 6, characterized in that, A second connecting rod (75) is fixedly connected to the bottom of the outer surface of the second screw hole block (74). The end of the second connecting rod (75) away from the second screw hole block (74) is fixedly connected to the U-shaped clamp block (76). A second protrusion (77) is fixedly connected to the inner wall of the U-shaped clamp block (76). L-shaped blocks (78) are fixedly connected to both sides of one side of the U-shaped clamp block (76). A threaded auxiliary rod (79) is threadedly connected to the inner wall of the L-shaped block (78). A rubber extrusion block (710) is fixedly connected to one end of the threaded auxiliary rod (79).

8. The syringe clamping mechanism of the RPR separation device according to claim 6, characterized in that, A mounting auxiliary plate (711) is fixedly connected to one side of the outer surface of the second rectangular frame (71). A second electric telescopic rod (712) is fixedly installed on the top of the mounting auxiliary plate (711). A connecting auxiliary plate (713) is fixedly connected to the output end of the second electric telescopic rod (712). The connecting auxiliary plate (713) is rectangular. A limiting rod (714) is fixedly connected to one side of the outer surface of the connecting auxiliary plate (713). There are four limiting rods (714). The four limiting rods (714) are set at the four corners of the connecting auxiliary plate (713).

9. The syringe clamping mechanism of the RPR separation device according to claim 4, characterized in that, The disassembly and cleaning structure (8) further includes a sliding block (81) slidably disposed on the outer surface of the vertical part of the support link (62). A threaded extrusion rod (82) is threadedly connected to one side of the inner wall of the sliding block (81). A rectangular frame (83) is fixedly connected to one side of the outer surface of the sliding block (81). A rectangular block (84) is snapped into the inner wall of the rectangular frame (83). A first insertion hole (85) is opened on both sides of the inner wall of the rectangular frame (83). A second insertion hole (86) is opened on the inner wall of the rectangular block (84). A threaded insert rod (87) is inserted into the inner wall of the first insertion hole (85) and the second insertion hole (86). A fixing nut (88) is threadedly connected to one end of the outer surface of the threaded insert rod (87).

10. The syringe clamping mechanism of the RPR separation device according to claim 9, characterized in that, An auxiliary connecting rod (811) is fixedly connected to one side of the outer surface of the rectangular card block (84), and one end of the outer surface of the auxiliary connecting rod (811) is fixedly connected to the outer surface of the annular frame (89).