Auxiliary cap screwing device and biological detection apparatus

Abstract

This invention discloses an auxiliary capping device and a biological detection device. The auxiliary capping device includes a base, a drive mechanism, and a capping mechanism. The base includes a pedestal and a vertical plate. The vertical plate is connected to the side of the pedestal facing away from the ground and extends in that direction. The drive mechanism is mounted on the base, and the capping mechanism is connected to the drive mechanism and can be driven to rotate by the drive mechanism. The capping mechanism is used to fix the cap of the sampling tube. The auxiliary capping device provided by this application improves the intelligence of cap opening and closing operations, reduces the workload of laboratory personnel, and enhances the safety protection of laboratory personnel.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an auxiliary capping device and a biological detection device. Background Technology

[0002] The caps of conventional sampling tubes on the market are all screw-on, which makes them difficult to open. Operators need to manually unscrew the caps during use. This often requires operators to repeatedly unscrew one or more sampling tubes, which can cause finger wear and tear. Furthermore, manual cap opening is inefficient and inefficient. Summary of the Invention

[0003] The main objective of this invention is to provide an auxiliary capping device and a biological detection device, which aims to improve the efficiency of opening sampling tubes and reduce labor costs.

[0004] To achieve the above objectives, the present invention provides an auxiliary capping device, the auxiliary capping device comprising:

[0005] The base includes a base and an upright plate, the upright plate being connected to the side of the base away from the ground and extending in a direction away from the ground;

[0006] A drive mechanism, the drive mechanism being mounted on the base; and

[0007] A capping mechanism is connected to the driving mechanism and can be driven to rotate by the driving mechanism. The capping mechanism is used to fix the cap of the sampling tube.

[0008] Optionally, the base includes:

[0009] Base plate; and

[0010] A fixing block is installed on the base plate and on one side of the upright plate, abutting against the side of the upright plate.

[0011] Optionally, two fixing blocks are provided, which are spaced apart and connected to the same side of the upright plate;

[0012] And / or, the base further includes multiple support columns, which are spaced apart on the side of the base plate away from the upright plate.

[0013] Optionally, the end of the capping mechanism away from the drive mechanism is inclined away from the base.

[0014] Optionally, the base further includes a mounting platform, which is mounted on the side of the upright plate away from the base. The surface of the mounting platform away from the base has an inclined surface. The drive mechanism is mounted on the inclined surface, and the capping mechanism is connected to the end of the drive mechanism away from the mounting platform.

[0015] Optionally, the mounting platform is provided with mounting holes, and at least a portion of the drive mechanism is inserted into the mounting holes.

[0016] Optionally, the base further includes a counterweight, which is mounted on the base.

[0017] And / or, the auxiliary capping device is provided with a power interface, which is installed on the base;

[0018] And / or, the auxiliary capping device further includes a controller, which is mounted on the upright plate;

[0019] And / or, the auxiliary capping device further includes a positioning sensor, which is installed on the side of the upright plate facing the capping mechanism, and is used to detect whether a sampling tube has reached the position to be capped.

[0020] Optionally, the drive mechanism includes:

[0021] Mounting plate, which is connected to the base;

[0022] A driving component, the driving component being connected to the mounting plate; and

[0023] An auxiliary drive structure is connected to the mounting plate and to the drive component. The capping mechanism is connected to the auxiliary drive structure and is located on the side of the auxiliary drive structure facing the ground. The capping mechanism can be driven to rotate by the drive component through the auxiliary drive structure. The auxiliary drive structure and the drive component are located on opposite sides of the upright plate.

[0024] Optionally, the capping mechanism includes:

[0025] A fixed structure is connected to the driving mechanism and can be driven to rotate by the driving mechanism. A fixed socket is formed at one end of the fixed structure away from the driving mechanism. At least a part of the structure of the cap of the sampling tube can be limited and fixed in the fixed socket. A hollow channel is formed in the fixed structure and the hollow channel is connected to the fixed socket.

[0026] A push rod assembly, inserted into the hollow channel and with at least a portion of its structure exposed within the fixing socket, the push rod assembly being able to be pushed by the tube cap to move along the hollow channel when the tube cap is fixed; and

[0027] A detection sensor is used to detect the movement data of the push rod assembly.

[0028] Optionally, the fixing structure forms a stepped surface facing the drive mechanism within the hollow channel, and the push rod assembly includes:

[0029] A push rod, which is inserted into the hollow channel; and

[0030] A baffle plate is connected to the push rod and is able to abut against the stepped surface.

[0031] Optionally, the push rod assembly further includes an elastic element, which is sleeved on the outside of the push rod, and the opposite ends of the elastic element abut against the baffle and the drive mechanism, respectively.

[0032] Optionally, the fixing structure includes:

[0033] Quick-connect assembly, the quick-connect assembly being connected to the drive mechanism; and

[0034] A capping assembly for securing the cap of the sampling tube, the capping assembly being detachably connected to the quick-connect assembly.

[0035] Optionally, the quick-connect assembly includes:

[0036] A connecting rod, wherein a fixing hole is provided on the outer surface of the connecting rod, and a slot for connecting the screw cap assembly is provided at one end of the connecting rod, and the fixing hole communicates with the slot;

[0037] A spherical structure, wherein the spherical structure is movably inserted into the fixing hole; and

[0038] A sleeve is fitted over the connecting rod, and the sleeve and the connecting rod enclose a movable space. The sleeve is movable relative to the connecting rod, and the spherical structure is movable toward or away from the movable space when the sleeve moves, so as to disengage from or limit contact with the cap assembly.

[0039] Optionally, the surface of the sleeve facing the movable space is formed with a guide slope, and in the direction of the cap assembly facing the connecting rod, the guide slope is inclined toward the central axis of the sleeve.

[0040] Optionally, the sleeve and the connecting rod form an installation gap, the installation gap and the movable space are spaced apart, and the sleeve forms an abutment surface facing the installation gap in the direction of the central axis of the sleeve;

[0041] The quick-connect assembly further includes a resilient reset member and a blocking member. The blocking member is connected to the connecting rod and is movable within the installation gap when the sleeve moves. The resilient reset member is installed within the installation gap and is elastically connected to the abutment surface and the blocking member.

[0042] Optionally, the end of the capping assembly opposite to the quick-connect assembly has a fixed socket, the depth of which is less than the length of the cap of the sampling tube.

[0043] Optionally, the screw cap assembly includes:

[0044] A capping head, connected to the quick-connect assembly, wherein the retaining port is formed at one end of the capping head opposite to the quick-connect assembly; and

[0045] A soft rubber collar is provided around the inner side of the capping head.

[0046] Optionally, the capping assembly further includes a clamping ring connected to the capping head, and the soft rubber sleeve is located between the clamping ring and the bottom wall of the groove of the fixing socket.

[0047] The present invention also proposes a biological detection device, the biological detection device including an auxiliary capping device, the auxiliary capping device comprising:

[0048] The base includes a base and an upright plate, the upright plate being connected to the side of the base away from the ground and extending in a direction away from the ground;

[0049] A drive mechanism, the drive mechanism being mounted on the base; and

[0050] A capping mechanism is connected to the driving mechanism and can be driven to rotate by the driving mechanism. The capping mechanism is used to fix the cap of the sampling tube.

[0051] This invention provides an auxiliary capping device, which includes a base, a drive mechanism, and a capping mechanism. The base includes a pedestal and a vertical plate. The pedestal supports and fixes the entire auxiliary capping device, and the vertical plate raises the height of the drive mechanism and the capping mechanism to provide sufficient space for placing the sampling tube. When it is necessary to open the cap of the sampling tube, the operator can connect the sampling tube to the capping mechanism and fix the tube body. When the drive mechanism drives the capping mechanism to rotate, the capping mechanism can rotate the cap of the sampling tube relative to the tube body, thereby achieving the opening or closing operation. The auxiliary capping device provided by this application can improve the intelligence of cap opening and closing operations, increase cap opening and closing efficiency, and reduce labor costs. Furthermore, the auxiliary capping device of this application can also reduce the workload of the operator, reduce wear and tear on the operator's hands, and improve the operator's safety. Attached Figure Description

[0052] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0053] Figure 1 This is a schematic diagram of an embodiment of the auxiliary capping device of the present invention;

[0054] Figure 2 for Figure 1 The diagram shows a cross-sectional view of the auxiliary capping device.

[0055] Figure 3 for Figure 2 A magnified view of point A shown below;

[0056] Figure 4 for Figure 2 The enlarged view of point B shown;

[0057] Figure 5 for Figure 1 An exploded view of the drive mechanism and the capping mechanism in the auxiliary capping device shown.

[0058] Figure 6 for Figure 5 Schematic diagram of the exploded structure of the drive mechanism;

[0059] Figure 7 for Figure 1 A cross-sectional schematic diagram of the capping mechanism in the auxiliary capping device shown;

[0060] Figure 8for Figure 7 Cross-sectional schematic diagram of the quick-connect structure;

[0061] Figure 9 for Figure 8 The exploded view of the quick-release structure is shown.

[0062] Figure 10 for Figure 7 An exploded view of the capping head assembly in the capping mechanism shown.

[0063] Figure 11 for Figure 1 The diagram shows the structure of the push rod assembly in the auxiliary capping device.

[0064] Explanation of icon numbers:

[0065]

[0066]

[0067]

[0068] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0069] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0070] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0071] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0072] Reference Figures 1 to 11 The present invention proposes an auxiliary capping device 100, which is used to open and close the cap of the sampling tube 200. The sampling tube 200 includes a tube body and a cap, and the cap is threadedly connected to the opening of the tube body.

[0073] In this embodiment of the invention, the auxiliary capping device 100 includes a base 10, a drive mechanism 20, and a capping mechanism 30. The base 10 includes a base 11 and a vertical plate 12. The vertical plate 12 is connected to the side of the base 11 away from the ground and extends in the direction away from the ground. The drive mechanism 20 is installed on the base 10. The capping mechanism 30 is connected to the drive mechanism 20 and can be driven to rotate by the drive mechanism 20. The capping mechanism 30 is used to fix the cap of the sampling tube 200.

[0074] The upright plate 12 can be a plate-like structure or a support structure, etc., without further limitation. In this embodiment, to facilitate the installation between structures and avoid mutual interference between mechanisms, the upright plate 12 can be a plate-like structure. This plate-like structure can be installed in the middle of the base 11 or on the side of the base 11. In this embodiment, to save installation space and improve the balance of the base 10 structure, the upright plate 12 can be installed in the middle of the base 11. When the drive mechanism 20 performs the opening and closing operation of the sampling tube 200, the tube body of the sampling tube 200 can be clamped and fixed by a mechanical fixing device, or it can be manually held and fixed by the experimenter. In this embodiment, the tube body of the sampling tube 200 is manually held and fixed by the experimenter to further improve the efficiency of the opening and closing operation of the sampling tube 200.

[0075] This invention provides an auxiliary capping device 100, which includes a base 10, a drive mechanism 20, and a capping mechanism 30. The base 10 includes a base 11 and a vertical plate 12. The base 11 supports and fixes the entire auxiliary capping device 100, and the vertical plate 12 raises the height of the drive mechanism 20 and the capping mechanism 30 to provide sufficient space for placing the sampling tube 200. When it is necessary to open the cap of the sampling tube 200, the operator can connect the sampling tube 200 to the capping mechanism 30 and fix the tube body of the sampling tube 200. When the drive mechanism 20 drives the capping mechanism 30 to rotate, the capping mechanism 30 can drive the cap of the sampling tube 200 to rotate relative to the tube body of the sampling tube 200, thereby realizing the opening or closing operation. The auxiliary capping device 100 provided by this application can improve the intelligence of cap opening and closing operations, increase cap opening and closing efficiency, and reduce labor costs. Furthermore, the auxiliary capping device 100 of this application can reduce the workload of the experimenter, reduce wear and tear on the experimenter's hands, and improve the experimenter's safety. In addition, the auxiliary capping device 100 can also prevent the sample in the sampling tube 200 from shaking and spilling out during manual opening, thus avoiding the possibility of cross-contamination.

[0076] See Figure 1 In one embodiment of this application, the base 11 includes a base plate 111 and a fixing block 112. The fixing block 112 is installed on the base plate 111 and on one side of the upright plate 12, and abuts against the side of the upright plate 12.

[0077] It is understood that the upright plate 12 and the base 11 are an integral structure, or they can be connected by snap-fit ​​or screw / bolt connection. For ease of structural processing and transportation, in this embodiment, the upright plate 12 and the base 11 are detachably connected by screws or bolts. The screws or bolts can penetrate the base plate 111 to connect to the side of the upright plate 12, or they can penetrate the upright plate 12 to connect to the fixing block 112. To facilitate assembly and disassembly and improve the connection strength between the upright plate 12 and the fixing block 112, the screws or bolts can penetrate the upright plate 12 to connect to the fixing block 112. The fixing block 112 abuts against the side of the upright plate 12, allowing it to support the upright plate 12 and preventing it from tipping over due to uneven force.

[0078] See Figure 1 In one embodiment of this application, two fixing blocks 112 are provided, spaced apart and connected to the same side of the upright plate 12. It can be understood that providing two fixing blocks 112 can further improve the connection strength between the fixing blocks 112 and the upright plate 12. Positioning the two fixing blocks 112 on the same side of the upright plate 12 can improve the supporting and limiting effect of the fixing blocks 112 on the upright plate 12, thereby further preventing the upright plate 12 from tipping over.

[0079] See Figure 1 In one embodiment of this application, the base 11 further includes multiple support columns 113, which are spaced apart on the side of the base plate 111 opposite to the upright plate 12. It is understood that the support columns allow for a gap between the base plate 111 and the ground, facilitating the handling of the auxiliary capping device 100. Furthermore, the support columns reduce the contact area between the base 10 and the ground, lowering the flatness requirement for the ground, thus allowing for a more level placement of the auxiliary capping device 100. The spaced arrangement of multiple support columns improves the stability of the auxiliary capping device 100 during placement.

[0080] See Figure 1 and Figure 2 To facilitate manual handling of the sampling tube 200 by the experimenter and improve the comfort of the experimenter when opening and closing the cap, in one embodiment of this application, the end of the capping mechanism 30 away from the drive mechanism 20 is inclined away from the base 10.

[0081] See Figure 1 and Figure 2 In one embodiment of this application, the base 10 further includes a mounting platform 13, which is mounted on the side of the upright plate 12 away from the base 11. The surface of the mounting platform 13 away from the base 11 has an inclined surface 13a. The drive mechanism 20 is mounted on the inclined surface 13a, and the capping mechanism 30 is connected to the end of the drive mechanism 20 away from the mounting platform 13. It can be understood that by making the surface of the mounting platform 13 away from the base 11 an inclined surface 13a, the drive mechanism 20 is inclinedly mounted on the base 10, thereby allowing the capping mechanism 30 connected to the drive mechanism 20 to tilt in the upright direction of the base 10. Connecting the capping mechanism 30 to the end of the drive mechanism 20 away from the mounting platform 13 causes the end of the capping mechanism 30 away from the drive mechanism 20 to be inclined away from the base 10. The mounting platform 13 facilitates the connection and installation of the drive mechanism 20, and its structure is simple and easy to manufacture. In other embodiments, the mounting platform 13 can be replaced with a mounting frame with a frame of different heights. The drive structure is connected to the frame of different heights and is installed at an angle on the base 10, so that the end of the capping mechanism 30 away from the drive mechanism 20 is tilted away from the base 10.

[0082] See Figure 2 In one embodiment of this application, the mounting platform 13 is provided with a mounting hole 13b, and at least a portion of the structure of the drive mechanism 20 is inserted into the mounting hole 13b. It can be understood that inserting at least a portion of the structure of the drive mechanism 20 into the mounting hole 13b can improve the stability of the connection and installation between the drive mechanism 20 and the mounting platform 13, and reduce the volume of the auxiliary capping device 100, making it easier to place the auxiliary capping device 100 in equipment such as a biosafety cabinet.

[0083] See Figure 1 In one embodiment of this application, the base 10 further includes a counterweight 14, which is mounted on the base 11. The counterweight 14 can increase the weight of the base 10 and lower the center of gravity of the auxiliary capping device 100, thereby improving the stability of the auxiliary capping device 100 on the ground and preventing the overall structure from tilting. The counterweight 14 can be located on one or both of the opposite sides of the upright plate 12, and can be set according to specific needs, without further limitation here. The counterweight 14 mounted on the side of the upright plate 12 facing the fixing block 112 can be mounted between the two fixing blocks 112 to further improve the space utilization and reduce the space occupied by the auxiliary capping device 100.

[0084] See Figure 1 In one embodiment of this application, the auxiliary capping device 100 is provided with a power interface 40, which is mounted on the base 11. It is understood that the power interface 40 is used to connect to an external power source to input electrical energy into the auxiliary capping device 100. Mounting the power interface 40 on the base 11 allows the external wiring connected to the auxiliary capping device 100 to be closer to the ground, facilitating wiring and avoiding interference with the operation of the auxiliary capping device 100. To further prevent the operator from touching the wiring during operation, the power interface 40 and the capping mechanism 30 can be located on opposite sides of the upright plate 12.

[0085] See Figure 1 and Figure 2 In one embodiment of this application, the auxiliary capping device 100 further includes a controller 60, which is mounted on the upright plate 12. It is understood that the controller 60 is capable of detecting electrical components in the auxiliary capping device 100. Mounting the controller 60 on the upright plate 12 can shorten the length of the connection line between the controller 60 and the drive mechanism 20, thereby improving signal transmission efficiency. To improve the stability of the controller 60 installation and make the structure mounted on the base 10 more compact, the controller 60 can be mounted on the side of the upright plate 12. To facilitate the connection between the drive mechanism 20 and the controller 60, the controller 60 can be mounted on the same side of the upright plate 12 as the main electrical components of the drive mechanism 20.

[0086] See Figure 1 and Figure 2In one embodiment of this application, the auxiliary capping device 100 further includes a position sensor 50. The position sensor 50 is mounted on the side of the upright plate 12 facing the capping mechanism 30. The position sensor 50 is used to detect whether the sampling tube 200 has reached the capping position. The position sensor 50 can be an optocoupler sensor or an infrared sensor, etc. The position sensor 50 can be wired or wirelessly connected to the controller 60. When the position sensor 50 detects that the sampling tube 200 has reached the capping position, the position sensor 50 can send this information to the controller 60, so that the controller 60 controls the drive mechanism 20 to work, thereby realizing the opening and closing operation of the sampling tube cap. The capping position is the position where the capping mechanism 30 fixes the cap of the sampling tube 200.

[0087] See Figure 1 , Figure 3 as well as Figure 5 In one embodiment of this application, the drive mechanism 20 includes a mounting plate 21, a drive member 22, and an auxiliary drive structure 23. The mounting plate 21 is connected to the base 10, the drive member 22 is connected to the mounting plate 21, the auxiliary drive structure 23 is connected to the mounting plate 21 and connected to the drive member 22, and the capping mechanism 30 is connected to the auxiliary drive structure 23 and is located on the side of the auxiliary drive structure 23 facing the ground. The capping mechanism 30 can be driven to rotate by the drive member 22 through the auxiliary drive structure 23. The auxiliary drive structure 23 and the drive member 22 are located on opposite sides of the upright plate 12.

[0088] It is understood that the mounting plate 21 is used to connect with the base 10 to mount and fix the entire drive mechanism 20 on the base 10. The drive component 22 is the power element of the drive mechanism 20, used to drive the capping mechanism 30 to rotate via the auxiliary drive structure 23 to open and close the cap. The drive component 22 can be a cylinder or a motor, etc. In this application, by mounting the drive component 22 and the auxiliary drive structure 23 at opposite ends of the mounting plate 21, the height of the auxiliary capping device 100 in the standing direction can be reduced, thereby reducing the volume of the auxiliary capping device 100, making it easier to place the auxiliary capping mechanism 30 inside the biosafety cabinet and facilitating the storage of the auxiliary capping device 100.

[0089] See Figure 5In one embodiment of this application, the auxiliary drive structure 23 includes a rotating wheel 231 and a rotating shaft 232. The rotating wheel 231 is connected to the drive member 22 and can be driven to rotate by the drive member 22. The rotating wheel 231 is sleeved outside the rotating shaft 232 and can drive the rotating shaft 232 to rotate together. One end of the rotating shaft 232 is exposed outside the rotating wheel 231 and is connected to the capping mechanism 30. It can be understood that exposing one end of the rotating shaft 232 outside the rotating wheel 231 facilitates the connection and installation of the capping mechanism 30, so as to ensure that the rotating shaft 232 can drive the capping mechanism 30 to rotate together, thereby realizing the cap opening and closing operation. In other embodiments, the capping mechanism 30 can be directly connected to the side of the rotating wheel 231 so as to be driven to rotate by the rotating wheel 231.

[0090] The drive unit 22 can be a motor. See also Figure 1 In one embodiment, the auxiliary drive structure 23 further includes a drive wheel 233 and a synchronous belt 234. The drive wheel 233 is connected to the drive member 22 and can be rotated by the drive member 22. The synchronous belt 234 is sleeved around the drive wheel 233 and the rotating wheel 231 and can drive the drive wheel 233 and the rotating wheel 231 to rotate synchronously. It can be understood that the auxiliary drive structure 23 configured in this way occupies less space and has lower material costs. In another embodiment, the auxiliary drive structure 23 further includes a gear. The gear is connected to the drive member 22 and can be rotated by the drive member 22. The rotating wheel 231 meshes with the gear. In other embodiments, the drive member 22 can also be a cylinder. The cylinder is mounted on the mounting plate 21, and the end of the cylinder is provided with a rack. The rotating wheel 231 meshes with the rack so that when the cylinder drives the rack to move, it drives the rotating wheel 231 to rotate. It can be understood that the gear and rack have higher structural strength, and the auxiliary drive structure 23 is less likely to be damaged. When the auxiliary drive structure 23 is equipped with a gear or rack structure, a gear ring can be machined on the outer surface of the rotating shaft 232 so that the gear and rack can directly drive the rotating shaft 232 to rotate.

[0091] See Figure 1 and Figure 2 In one embodiment of this application, the auxiliary drive structure 23 further includes a mounting base 235, which is connected to the mounting plate 21. The mounting base 235 forms a mounting space 235a, and a clearance hole 235b is formed on the side of the mounting base 235 facing the drive member 22. The rotating shaft 232 and the rotating wheel 231 are mounted in the mounting space 235a and exposed in the clearance hole 235b. It can be understood that mounting the rotating shaft 232 and the rotating wheel 231 in the mounting space 235a can protect the rotating shaft 232 and the rotating wheel 231, preventing the accumulation of dust and other impurities from affecting the smoothness of the rotation of the rotating shaft 232 and the rotating wheel 231. The clearance hole 235b can expose part of the structure of the rotating wheel 231 to facilitate the connection and drive of the drive member 22.

[0092] To ensure smooth and unobstructed rotation of the rotating shaft 232 when the driving component 22 drives it, thereby improving the reliability of the auxiliary capping device 100, in one embodiment of this application, the auxiliary driving structure 23 further includes an upper bearing 236 and a lower bearing 237. The upper bearing 236 and lower bearing 237 are installed within the installation space 235a and sleeved around the rotating shaft 232, located on opposite sides of the rotating wheel 231 on the rotating shaft 232. See also... Figure 5 .

[0093] See Figure 6 In one embodiment of this application, the mounting base 235 includes a base body 2351 and an upper cover 2352. The upper cover 2352 is connected to the side of the base body 2351 facing away from the mounting plate 21. An installation space 235a is formed in the base body 2351. A lower bearing 237 is mounted on the mounting plate 21, and an upper bearing 236 is mounted on the side of the upper cover 2352 facing the mounting plate 21. It is understood that the lower bearing 237, connected to the mounting plate 21, can connect and support the rotating wheel 231 and the rotating shaft 232. The upper bearing 236 can be connected and fixed to the base body 2351 via the upper cover 2352, thus fixing it relative to the mounting plate 21. This allows it to work together with the lower bearing 237 to act on the rotating shaft 232 and the rotating wheel 231, and to limit and fix the rotating shaft 232 and the rotating wheel 231. The upper cover 2352, connected to the base body 2351, can be directly locked and fixed to the surface of the base body 2351 facing away from the mounting plate 21, which improves the convenience of installing and fixing the upper bearing 236. In other embodiments, the top cover 2352 may also be locked and fixed to the mounting plate 21.

[0094] In one embodiment of this application, the drive member 22 and the mounting base 235 can be mounted on opposite sides of the mounting plate 21 to further reduce the height of the auxiliary capping device 100 in the standing direction.

[0095] In one embodiment of this application, the capping mechanism 30 includes a fixing structure 31, a push rod assembly 32, and a detection sensor 33. The fixing structure 31 is connected to the driving mechanism 20 and can be driven to rotate by the driving mechanism 20. A fixing socket 3121a is formed at the end of the fixing structure 31 away from the driving mechanism 20. At least a portion of the structure of the cap of the sampling tube 200 can be fixed in the fixing socket 3121a. A hollow channel is formed in the fixing structure 31 and communicates with the fixing socket 3121a. The push rod assembly 32 is inserted in the hollow channel and at least a portion of its structure is exposed in the fixing socket 3121a. The push rod assembly 32 can be pushed by the cap to move along the hollow channel when the cap is fixed. The detection sensor 33 is used to detect the movement data of the push rod assembly 32.

[0096] It is understood that the detection sensor 33 can be an optocoupler sensor or an infrared sensor, etc. The fixed structure 31 can be connected to the rotating shaft 232 in the drive mechanism 20 to rotate synchronously with the rotating shaft 232, thereby driving the cap of the sampling tube 200 to rotate relative to the tube body, realizing the opening and closing operation of the sampling tube 200. When the experimenter performs the opening operation, he can first insert the cap of the sampling tube 200 into the fixed socket 3121a. The push rod assembly 32 can abut against it when the cap of the sampling tube 200 is inserted and be pushed to move by the cap. At this time, the detection sensor 33 can detect the movement data of the push rod assembly 32 and know that the experimenter is performing the opening operation, thereby causing the drive mechanism 20 to drive the fixed structure 31 to rotate in the forward direction to realize the opening operation. When the experimenter is performing the cap-closing operation, they can move the sample tube 200 to the opening of the fixed socket 3121a of the fixed structure 31. At this time, because the cap inside the fixed socket 3121a is always in contact with the limiting push rod assembly 32, the detection sensor 33 cannot detect the movement data of the push rod assembly 32. Therefore, it can be determined that the experimenter intends to close the cap. At this point, the drive mechanism 20 can drive the fixed structure 31 to rotate in the opposite direction to achieve the cap-closing operation, connecting the cap and the tube body. The capping mechanism 30 provided in this application can effectively determine whether the experimenter's purpose is to open or close the cap, thus avoiding misjudgment and saving cap-opening and closing time. This improves the efficiency of the auxiliary capping device 100 in opening and closing the cap.

[0097] See Figure 7 In one embodiment of this application, the fixing structure 31 has a stepped surface 31a facing the drive mechanism 20 in the hollow channel. The push rod assembly 32 includes a push rod 321 and a baffle 322. The push rod 321 is inserted into the hollow channel, and the baffle 322 is connected to the push rod 321 and can abut against the stepped surface 31a.

[0098] It is understood that the push rod 321 and the baffle 322 can move within the hollow channel formed by the fixed structure 31 to cooperate with the detection sensor 33 to detect whether the experimenter's operation is to open or close the lid. When no sampling tube 200 is inserted into the fixed socket 3121a, the push rod assembly 32 will move under the action of gravity, so that the baffle 322 moves toward the step surface 31a and abuts against the step surface 31a to limit the position of the push rod 321 and prevent the push rod 321 from sliding directly out of the hollow channel of the fixed structure 31. It is understood that in order to ensure the movement of the push rod 321 while facilitating the abutment and limitation of the baffle 322 against the step surface 31a, the cross-section of the baffle 322 in the direction of movement of the push rod 321 is larger than the cross-section of the push rod 321. In other embodiments, the sidewall of the hollow channel may form a limiting groove, and the baffle 322 can be engaged or disengaged from the limiting groove when the push rod 321 moves, so as to ensure the limiting of the push rod 321 and the realization of the detection function of the push rod 321 and the detection sensor 33.

[0099] In one embodiment of this application, the push rod 321 includes an upper rod 3211 and a lower rod 3212, with the upper rod 3211 detachably connected to the lower rod 3212. It is understood that detachably connecting the upper rod 3211 and the lower rod 3212 facilitates the installation of the push rod assembly 32 and the fixing structure 31. The upper rod 3211 and the lower rod 3212 can be directly detachably connected; for example, the upper rod 3211 may have one of a latching protrusion or a mounting groove, and the lower rod 3212 may have the other of a latching protrusion or a mounting groove, with the latching protrusion and the mounting groove threadedly connected. Alternatively, the upper rod 3211 and the lower rod 3212 can also be indirectly detachably connected.

[0100] See Figure 7 In one embodiment of this application, the baffle 322 includes a main body 3221, a first connecting post 3222, and a second connecting post 3223. The first connecting post 3222 is disposed on one side surface of the main body 3221 and is detachably inserted into the upper rod 3211. The second connecting post 3223 is disposed on the surface of the main body 31211 opposite to the first connecting post 3222 and is detachably inserted into the lower rod 3212. It can be understood that the protrusion of the first connecting post 3222 and the second connecting post 3223 on the main body 3221 not only limits the position of the push rod 321, but also facilitates the assembly and disassembly of the upper rod 3211 and the lower rod 3212, simplifies the structure of the upper rod 3211 and the lower rod 3212, and facilitates the manufacturing and processing of the upper rod 3211 and the lower rod 3212. The first connecting post 3222 and the upper rod 3211, as well as the second connecting post 3223 and the lower rod 3212, can be plugged together and fixed by fastening or snap-fitting.

[0101] To enhance the connection strength between the first connecting post 3222 and the upper rod 3211, and to limit their movement in the extension direction of the push rod 321, in one embodiment of this application, the first connecting post 3222 is provided with either an internal thread or an external thread, and the upper rod 3211 is provided with either an internal thread or an external thread, with the internal thread adapted to connect to the external thread. Similarly, to enhance the connection strength between the second connecting post 3223 and the lower rod 3212, and to limit their movement in the extension direction of the push rod 321, the second connecting post 3223 is provided with either an internal thread or an external thread, and the lower rod 3212 is provided with either an internal thread or an external thread, with the internal thread adapted to connect to the external thread.

[0102] See Figure 7 In one embodiment of this application, the push rod assembly 32 further includes an elastic element 323, which is sleeved on the push rod 321, and the two opposite ends of the elastic element 323 abut against the baffle 322 and the drive mechanism 20, respectively.

[0103] It is understandable that the elastic element 323 assists the push rod assembly 32 in returning to its initial position, i.e., the position where the baffle 322 and the stepped surface 31a abut against each other. When the sampling tube 200 pushes the push rod assembly 32, the baffle 322 moves away from the stepped surface 31a, at which point the elastic element 323 will be compressed and deformed. When the experimenter completes the opening and closing operation and removes the sampling tube 200 from the fixed insertion port 3121a, the push rod 321 will no longer be pushed. At this time, since there is no external force, the elastic element 323 will return to its initial position, i.e., the elastic element 323 will push the baffle 322 towards the stepped surface 31a until the baffle 322 abuts against the stepped surface 31a. The setting of the elastic element 323 can improve the efficiency of the push rod assembly 32's recovery movement and ensure the accuracy of the push rod assembly 32's recovery back to its initial position, in preparation for the next opening and closing operation.

[0104] See Figure 3 In one embodiment of this application, the rotating shaft 232 is a hollow structure, and at least a portion of the push rod 321 is inserted into the rotating shaft 232 and can be exposed outside the rotating shaft 232 during movement. The detection sensor 33 is located on the side of the rotating shaft 232 away from the fixed structure 31. With this arrangement, when the sampling tube 200 pushes the push rod assembly 32 upward, the push rod assembly 32 will be exposed on the side of the rotating shaft 232 located on the detection sensor 33 and will move in the direction of the detection sensor 33, thereby being detected by the detection sensor 33. It can be understood that placing the detection sensor 33 on the side of the rotating shaft 232 away from the fixed structure 31 can shorten the distance between the push rod 321 and the detection sensor 33, improving the accuracy of the detection sensor 33. In addition, this arrangement of the detection sensor 33 also allows the end of the lower push rod 321 away from the upper push rod 321 to be accommodated within the fixed structure 31, thereby improving the protection of the push rod 321. Of course, in other embodiments, the detection sensor 33 may also be located on the base 10, and the end of the lower push rod 321 opposite to the upper push rod 321 may be exposed outside the fixed structure 31.

[0105] See Figure 6In one embodiment of this application, the drive mechanism 20 further includes a mounting member 24, which includes an extension plate 241 and a baffle 242. The extension plate 241 is connected to the mounting base 235 on the side opposite to the mounting plate 21 and extends in the direction opposite to the mounting plate 21. The detection sensor 33 is mounted on the extension plate 241. The baffle 242 is connected to the side of the extension plate 241 opposite to the mounting base 235. In the extending direction of the rotation shaft 232, the projection of the baffle 242 on the mounting base 235 covers the rotation shaft 232. The baffle 242 is provided with a guide hole. It can be understood that the extension plate 241 is used to mount the detection sensor 33, and the detection sensor 33 is mounted on the side of the extension plate 241 facing the rotation shaft 232. The guide hole provided in the baffle 242 allows the push rod 321 to pass through when it moves, thereby guiding the movement of the push rod 321 and preventing the push rod 321 from tilting during the pushing process, which would affect the detection accuracy of the detection sensor 33.

[0106] See Figure 11 In one embodiment of this application, the outer surface of the end of the push rod 321 connected to the rotating shaft 232 is provided with an anti-rotation plane 321a. The anti-rotation plane 321a can limit the relative position of the push rod 321 and the rotating shaft 232 in the circumferential direction, ensuring that the push rod 321 can rotate together with the rotating shaft 232, increasing the friction between the cap of the sampling tube 200 and the capping mechanism 30, and improving the efficiency and effectiveness of the capping operation.

[0107] See Figure 4 and Figure 11 In one embodiment of this application, the end of the push rod 321 facing away from the drive mechanism 20 is provided with a boss 3213. On a plane perpendicular to the extension direction of the push rod 321, the cross-section of the boss 3213 is larger than the cross-section of the push rod 321. The boss 3213 can increase the contact area between the push rod assembly 32 and the cap of the sampling tube 200, preventing the push rod assembly 32 from tilting during the pushing process on the sampling tube 200. The boss 3213 can be a frustum, a truncated cone, or other irregular structure. In this embodiment, the boss 3213 can be a truncated cone to facilitate gripping and rotation when the lower rod 3212 and the second connecting post 3223 are connected.

[0108] In one embodiment of this application, the fixing structure 31 includes a quick-connect assembly 311 and a capping assembly 312. The quick-connect assembly 311 is connected to the drive mechanism 20; the capping assembly 312 is used to fix the cap of the sampling tube 200, and the capping assembly 312 is detachably connected to the quick-connect assembly 311. It is understood that detachably connecting the capping assembly 312 to the quick-connect assembly 311 allows the fixing structure 31 to adapt to fixing sampling tubes 200 of different specifications, meaning the capping assembly 312 can be replaced according to the specifications of the sampling tube 200. The capping assembly 312 and the quick-connect assembly 311 can be detachably connected by a threaded connection or a snap-fit ​​connection.

[0109] See Figure 7 and Figure 8 In one embodiment of this application, the quick-connect assembly 311 includes a connecting rod 3111, a spherical structure 3112, and a sleeve 3113. The outer surface of the connecting rod 3111 is provided with a fixing hole 3111c, and one end of the connecting rod 3111 is provided with a slot 3111d for connecting to the capping assembly 312. The capping assembly 312 is used to fix the cap of the sampling tube 200. The fixing hole 3111c communicates with the slot 3111d, and the spherical structure 3112 is movably inserted into the fixing hole 3111c. Inside the hole 3111c, the sleeve 3113 is fitted over the connecting rod 3111. The sleeve 3113 and the connecting rod 3111 enclose a movable space 311a. The movable space 311a is reduced in size along the central axis of the sleeve 3113. The sleeve 3113 can move relative to the connecting rod 3111. The spherical structure 3112 can move toward or away from the movable space 311a when the sleeve 3113 moves, so as to disengage or be limited to abut against the cap assembly 312.

[0110] It is understandable that the spherical structure 3112 can be made of materials such as steel, plastic, or ceramic. The movable space 311a can be reduced in the direction of the cap assembly 312 toward the quick-connect assembly 311, or it can be reduced in the direction of the quick-connect assembly 311 toward the cap assembly 312, as long as the movable space 311a can vary in size. The connecting rod 3111 is fixedly connected to the rotating shaft 232 to ensure that the connecting rod 3111 can rotate with the rotating shaft 232. When the cap assembly 312 is inserted into the slot 3111d, the spherical structure 3112 is located in the smaller position of the movable space 311a and abuts and is limited between the sleeve 3113 and the cap assembly 312 to limit and fix the cap assembly 312. When the capping assembly 312 needs to be replaced, the sleeve 3113 can move relative to the connecting rod 3111, so that the spherical structure 3112 located in the fixing hole 3111c of the connecting rod 3111 can be in a larger position in the movable space 311a, thereby releasing the effect of the spherical structure 3112 limiting and fixing the capping assembly 312, ensuring that the spherical structure 3112 can move towards or away from the movable space 311a. At this time, if the capping assembly 312 is pulled out of the slot 3111d, the spherical structure 3112 will move towards the movable space 311a under the push of the capping assembly 312. When the replaced capping assembly 312 is inserted into the slot 3111d, the sleeve 3113 can be moved in the opposite direction, so that the spherical structure 3112 is back in a smaller position in the movable space 311a, thereby limiting and fixing the capping assembly 312 and preventing the capping assembly 312 from falling off. When the sleeve 3113 moves in the opposite direction, it can push the spherical structure 3112 away from the movable space 311a. The quick-connect assembly 311 provided in this application can quickly install and remove the capping assembly 312 by sliding the sleeve 3113 relative to the connecting rod 3111, which improves the convenience and efficiency of replacing the capping assembly 312 and also ensures that the quick-connect assembly 311 can be adapted to connect capping assemblies 312 of different specifications.

[0111] See Figure 7 In one embodiment of this application, a guide slope 3113a is formed on the surface of the sleeve 3113 facing the active space 311a. In the direction of the cap assembly 312 toward the connecting rod 3111, the guide slope 3113a is inclined toward the central axis of the sleeve 3113.

[0112] It is understandable that when the guide ramp 3113a is configured in this way, the sleeve 3113 can move away from the cap assembly 312 to engage with and fix the cap assembly 312. This ensures that more of the end of the connecting rod 3111 connected to the cap assembly 312 can be accommodated within the sleeve 3113, thereby improving the protection of the connection between the connecting rod 3111 and the cap assembly 312 and facilitating the connection and installation of the connecting rod 3111 and the sleeve 3113. The guide ramp 3113a can be a plane or a stepped ramp, and no further restrictions are imposed here.

[0113] See Figure 8 In one embodiment of this application, the sleeve 3113 and the connecting rod 3111 enclose an installation gap 311b, which is spaced apart from the movable space 311a. In the direction of the central axis of the sleeve 3113, the sleeve 3113 forms an abutment surface facing the installation gap 311b. The quick-connect assembly 311 also includes an elastic reset member 3114 and a blocking member 3115. The blocking member 3115 is connected to the connecting rod 3111 and can move within the installation gap 311b when the sleeve 3113 moves. The elastic reset member 3114 is installed within the installation gap 311b and elastically connected to the abutment surface and the blocking member 3115.

[0114] It is understood that the blocking member 3115 can be a single component or composed of multiple structures. The interval between the mounting gap 311b and the movable space 311a prevents the spherical structure 3112 from moving into the mounting gap 311b when the sleeve 3113 moves relative to the connecting rod 3111, thus affecting the stability of the cap assembly 312. The elastic reset member 3114 and the blocking member 3115 assist the movement of the sleeve 3113 to ensure that the sleeve 3113 and the connecting rod 3111 can return to their initial positions. When the sleeve 3113 moves relative to the connecting rod 3111 in a direction away from the cap assembly 312, the abutment surface will move towards the blocking member 3115 to compress the elastic reset member 3114, causing the elastic reset member 3114 to deform. After the capping assembly 312 is replaced, the experimenter can reduce or release the force on the sleeve 3113. At this time, the elastic reset member 3114 will reset its deformation and act on the abutment surface, thereby pushing the sleeve 3113 back to its initial position, so that the experimenter can operate more effortlessly and conveniently.

[0115] See Figure 8 In one embodiment of this application, the blocking member 3115 includes a retaining ring 31151 and a retaining ring 31152. The retaining ring 31151 is movably sleeved on the outside of the connecting rod 3111 and abuts against the elastic reset member 3114. The retaining ring 31152 is connected to the connecting rod 3111 and is disposed on the side of the retaining ring 31151 away from the elastic reset member 3114. The outer diameter of the retaining ring 31152 is larger than the inner diameter of the retaining ring 31151 and smaller than the inner diameter of the sleeve 3113.

[0116] It is understandable that setting the outer diameter of the retaining ring 31152 to be larger than the inner diameter of the retaining ring 31151 ensures that the retaining ring 31152 can limit the position of the retaining ring 31151, so that the elastic reset member 3114 can undergo elastic deformation when the sleeve 3113 moves relative to the connecting rod 3111. Setting the outer diameter of the retaining ring 31151 to be smaller than the inner diameter of the sleeve 3113 ensures that the sleeve 3113 can move relative to the connecting rod 3111 in the direction away from the cap assembly 312. The setting of the retaining ring 31151 can improve the limiting effect on the elastic reset member 3114 and ensure the reliability of the elastic reset member 3114 driving the sleeve 3113 to move and return to its original position.

[0117] See Figure 9 In one embodiment of this application, a groove 3111b is formed on the outer surface of the connecting rod 3111, and a retaining ring 31152 is provided with a connecting groove 3115a and a notch 3115b communicating with the connecting groove 3115a. The retaining ring 31152 is engaged in the groove 3111b. It can be understood that during installation, the connecting rod 3111 can be inserted into the connecting groove 3115a through the notch 3115b, and the retaining ring 31152 is confined within the groove 3111b, thereby achieving a fixed connection between the retaining ring 31152 and the connecting rod 3111. The plug-in connection between the retaining ring 31152 and the connecting rod 3111 facilitates the installation and removal of the quick-connect assembly 311, allowing for the replacement of only a portion of the quick-connect assembly 311 during maintenance, thus reducing the maintenance cost of the quick-connect assembly 311. In other embodiments, the retaining ring 31152 may also protrude from the outer surface of the connecting rod 3111.

[0118] See Figure 9 In one embodiment of this application, the retaining ring 31152 is further provided with a clearance groove 3115c, which communicates with the connecting groove 3115a and is located on the side of the retaining ring 31152 opposite to the notch 3115b. It can be understood that the clearance groove 3115c provides deformation space for the enlargement of the notch 3115b in the retaining ring 31152, thus reducing the size of the notch 3115b and improving the strength of the connection between the retaining ring 31152 and the connecting rod 3111. When the retaining ring 31152 is connected to the connecting rod 3111, the notch 3115b will gradually enlarge and then shrink back to its original size, so that the retaining ring 31152 can be fastened within the slot 3111b. To further ensure the deformation of the notch 3115b, two clearance grooves 3115c may be provided.

[0119] See Figure 8 and Figure 9In one embodiment of this application, the connecting rod 3111 includes a plug-in section 31111 and a connecting section 31112. At least a portion of the plug-in section 31111 is inserted into the sleeve 3113 and forms an active space 311a with the sleeve 3113. A fixing hole 3111c is provided in the plug-in section 31111. The connecting section 31112 and the plug-in section 31111 form a slot 3111d. A guide slope 3111a is formed at the connection between the connecting section 31112 and the plug-in section 31111. It can be understood that a portion of the plug-in section 31111 is inserted into the sleeve 3113 to connect with the sleeve 3113. The end of the plug-in section 31111 facing away from the connecting section 31112 can be fixedly connected to the rotating shaft 232 to ensure that the connecting rod 3111 can rotate with the rotating shaft 232. During the installation of sleeve 3113 and connecting rod 3111, guide bevel 3111a can guide the connecting end to be inserted into sleeve 3113. Cap assembly 312 is connected to the end of connecting section 31112 opposite to the insertion section 31111. In this embodiment, the diameter of insertion section 31111 is smaller than that of connecting section 31112, which improves the structural strength of the connection between connecting rod 3111 and cap assembly 312.

[0120] See Figure 9 In one embodiment of this application, three fixing holes 3111c are provided, arranged circumferentially around the connecting rod 3111. Three spherical structures 3112 are provided corresponding to the fixing holes 3111c, with one spherical structure 3112 inserted into one fixing hole 3111c. This arrangement ensures the structural strength of the connecting rod 3111 while enhancing the connection and limiting effect of the spherical structures 3112 on the capping assembly 312, improving the stability of the capping assembly 312 when connected and fixed to the connecting rod 3111. This further improves the reliability of the capping assembly 312 in driving the cap to rotate relative to the tube body.

[0121] See Figure 9 In one embodiment of this application, an annular groove 3113b is formed on the outer surface of the sleeve 3113. The annular groove 3113b increases the resistance between the sleeve 3113 and the experimenter's hand, and makes it easier for the experimenter to hold the sleeve 3113 so that the sleeve 3113 moves relative to the connecting rod 3111.

[0122] See Figure 7 and Figure 10In one embodiment of this application, a positioning groove 3121g is formed on the outer surface of the end where the capping assembly 312 is connected to the connecting rod 3111. At least a portion of the spherical structure 3112 is inserted into the positioning groove 3121g. The positioning groove 3121g can limit and fix the capping assembly 312 to prevent it from sliding in the central axis direction. In addition, the snap-fit ​​between the spherical structure 3112 and the positioning groove 3121g can also limit the positional relationship between the capping assembly 312 and the connecting rod 3111 in the circumferential direction, preventing the capping assembly 312 from rotating relative to the connecting rod 3111, thereby ensuring the reliability of the fixed structure 31 driving the cap of the sampling tube 200 to rotate.

[0123] See Figure 4 In one embodiment of this application, a fixing socket 3121a is formed at the end of the capping assembly 312 opposite to the quick-connect assembly 311. The depth of the fixing socket 3121a is less than the length of the cap of the sampling tube 200. This ensures that the cap of the sampling tube 200 will not completely enter the capping assembly 312 during the opening and closing process, thereby reducing the possibility of contact between the opening of the sampling tube 200 and the capping assembly 312, reducing the incidence of cross-contamination, and improving the reliability of sample data within the sampling tube 200.

[0124] See Figure 7 and Figure 10 In one embodiment of this application, the capping assembly 312 includes a capping head 3121 and a soft rubber collar 3122. The capping head 3121 is connected to the quick-connect assembly 311. A fixed insertion port 3121a is formed at the end of the capping head 3121 opposite to the quick-connect assembly 311. The soft rubber collar 3122 surrounds the inner surface of the capping head 3121. It can be understood that the capping head 3121 is used to connect and fix with the connecting rod 3111. The soft rubber collar 3122, located within the fixed insertion port 3121a, can increase the friction between the capping assembly 312 and the cap of the sampling tube 200, thereby improving the reliability of the capping operation. Furthermore, the soft rubber collar 3122 can also protect the cap of the sampling tube 200, preventing cap wear. The soft rubber collar 3122 can be connected to the capping head 3121 by means of adhesive bonding or snap-fit.

[0125] To improve the stability of the soft rubber collar 3122 during installation, the soft rubber collar 3122 can be interference-fitted into the fixing slot 3111d. See also Figure 7 and Figure 10In one embodiment of this application, the capping assembly 312 further includes a clamping ring 3123, which is connected to the capping head 3121. A soft rubber sleeve 3122 is positioned between the clamping ring 3123 and the bottom wall of the groove in the fixing socket 3121a. The clamping ring 3123 can press and fix the soft rubber sleeve 3122 within the fixing socket 3121a to prevent the soft rubber sleeve 3122 from detaching from the capping head 3121. The clamping ring 3123 can be connected and fixed to the capping head 3121 by means of snap-fit ​​or threaded connection. In this embodiment, for ease of maintenance, the clamping ring 3123 can be threaded to the capping head 3121 to further improve the connection strength between the clamping ring 3123 and the capping head 3121.

[0126] See Figure 4 In one embodiment of this application, a first inclined surface 3122a is formed on the side of the soft rubber collar 3122 facing the clamping ring 3123. In the direction from the clamping ring 3123 to the soft rubber collar 3122, the first inclined surface 3122a is inclined towards the central axis of the soft rubber collar 3122. It can be understood that the first inclined surface 3122a can guide the cap of the sampling tube 200 when it is inserted, ensuring that the side surface of the cap can abut against the inner surface of the soft rubber collar 3122.

[0127] See Figure 4 and Figure 10 In one embodiment of this application, the clamping ring 3123 has a clamping protrusion 31231 on the side facing the soft rubber sleeve 3122, and the clamping protrusion 31231 abuts against the first inclined surface 3122a. It can be understood that the clamping protrusion 31231 can clamp the first inclined surface 3122a, thereby achieving the purpose of further clamping the soft rubber sleeve 3122, and thus preventing the soft rubber sleeve 3122 from rotating relative to the capping head 3121 during the opening and closing of the cover, which would prevent the opening and closing of the cover from being achieved.

[0128] For further guidance on inserting the cap of sampling tube 200, see [link / reference]. Figure 4 In one embodiment of this application, the clamping ring 3123 is provided with a second inclined surface 3223a on the side facing the opening of the fixing socket 3121a. In the direction of the clamping ring 3123 facing the soft rubber sleeve 3122, the second inclined surface 3223a is inclined towards the central axis of the clamping ring 3123.

[0129] See Figure 7 and Figure 10In one embodiment of this application, the quick-connect assembly 311 has a slot 3111d, and the capping head 3121 includes a main body 31211 and a connecting part 31212. A fixing socket 3121a is formed in the main body 31211, and the connecting part 31212 is connected to the side of the main body 31211 opposite to the opening of the fixing socket 3121a. The connecting part 31212 is inserted into the slot 3111d. The main body 31211 is used to fix the cap of the sampling tube 200, and the connecting part 31212 is used to connect with the quick-connect assembly 311. Inserting the connecting part 31212 into the slot 3111d facilitates the connection and installation of the capping head 3121 and the quick-connect assembly 311, and can improve the connection strength between the capping head 3121 and the quick-connect assembly 311.

[0130] In order to improve the effect of the rotating shaft 232 driving the cap of the sampling tube 200 to rotate while ensuring the connection strength between the main body 31211 and the cap of the sampling tube 200 and reducing energy loss, the radial distance of the quick-connect assembly 311 can be set to be smaller than the radial distance of the main body 31211.

[0131] See Figure 7 In one embodiment of this application, the slot 3111d includes a first receiving section 3111e and a second receiving section 3111f. A limiting step 3121e is formed at the connection between the first receiving section 3111e and the second receiving section 3111f. The connecting part 31212 includes a fixing section 3121c and a limiting section 3121d. The fixing section 3121c is inserted into the first receiving section 3111e and connected to the quick-connect assembly 311. The fixing section 3121c and the capping head 3121 are connected to opposite sides of the limiting section 3121d. The limiting section 3121d is inserted into the second receiving section 3111f and at least part of its structure abuts against the limiting step 3121e. The limiting step 3121e can limit the connecting part 31212 when it is inserted into the slot 3111d, thereby limiting the distance of the connecting part 31212 inserted into the slot 3111d, thus positioning the connection position of the capping head 3121 and the quick-connect assembly 311, and thus ensuring the accuracy of the connection position of the capping head 3121 and the quick-connect assembly 311.

[0132] See Figure 10 In one embodiment of this application, a limiting plane 3121f is formed on the outer surface of the limiting segment 3121d. The limiting plane 3121f can limit the relative position of the connecting rod 3111 and the capping head 3121 in the circumferential direction, preventing the capping head 3121 from rotating relative to the connecting rod 3111, thereby ensuring the reliability of the fixed structure 31 driving the cap of the sampling tube 200 to rotate relative to the tube body.

[0133] See Figure 10In one embodiment of this application, an anti-slip groove 3121b is formed on the outer surface of the main body 31211. The anti-slip groove 3121b increases the resistance between the capping head 3121 and the experimenter's hand, and makes it easier for the experimenter to hold the capping head 3121 so that the capping head 3121 can move relative to the connecting rod 3111, thereby completing the replacement of the capping assembly 312.

[0134] The specific operation of the auxiliary capping device 100 provided in one embodiment of this application by the experimenter is as follows: When the experimenter is about to open the sampling tube 200, he will move the sampling tube 200 closer to the fixed socket 3121a. The positioning sensor 50 will acquire the distance information and send the information to the controller 60, so that the controller 60 controls the drive component 22 to be in a standby state. When the experimenter pushes the sampling tube 200 upward into the fixed socket 3121a, the end face of the protrusion 3213 provided at the end of the lower rod 3212 will contact the sampling tube 200 and be pushed upward. At this time, the entire push rod assembly 32 moves upward, the baffle 322 will compress the elastic element 323, and the detection sensor 33 can identify the upward movement information of the push rod assembly 32. The detection sensor 33 can send the information to the controller 60, so that the controller 60 controls the start of the drive component 22, so that the drive component 22 rotates through the synchronous belt 234, the pulley 231, and the rotating shaft 232. The rotating shaft 232 can drive the capping head 3121 assembly to rotate via the connecting rod 3111 in order to open the cap.

[0135] After opening the cap, the experimenter moves the sampling tube 200 downward away from the fixed socket 3121a. At this time, the compressive rebound force of the elastic element 323 is less than the friction force of the soft rubber collar 3122 on the tube cap, so the push rod assembly 32 will not sink, and the detection sensor 33 is always in the recognition state for the upward movement information of the upper rod 3211.

[0136] When the experimenter finishes processing the sample and prepares to close the cap, they only need to move the sampling tube 200 to the end of the cap. At this time, the positioning sensor 50 will acquire distance information, so that the controller 60 controls the start drive component 22, thereby driving the rotating shaft 232 to rotate in the opposite direction, which in turn drives the capping head 3121 assembly to rotate in the opposite direction to close the cap. After the cap is closed, the sampling tube 200 is removed as a whole. Under the compression and rebound force of the elastic element 323, the baffle 322 in the push rod assembly 32 rebounds to the step surface 31a of the baffle 322 to abut and limit the contact with the step surface 31a. The bottom of the entire push rod assembly 32 then sinks into the fixed insertion port 3121a of the capping head 3121 assembly to wait for the next cycle of opening and closing the cap.

[0137] The present invention also proposes a biological detection device, which includes an auxiliary capping device 100. The specific structure of the auxiliary capping device 100 is as described in the above embodiments. Since the biological detection device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0138] In one embodiment of this application, the biological detection device can be an automated workstation, which may include a testing device and an auxiliary capping device 100. The testing device can be used for pre-analytical management and processing of samples. This biological detection device has a high degree of automation.

[0139] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An assisted screw cap device, characterized in that, The auxiliary capping device includes: The base includes a base and an upright plate, the upright plate being connected to the side of the base away from the ground and extending in a direction away from the ground; A drive mechanism, the drive mechanism being mounted on the base; and A capping mechanism is connected to the driving mechanism and can be driven to rotate by the driving mechanism. The capping mechanism is used to fix the cap of the sampling tube. The capping mechanism includes: A fixed structure is connected to the driving mechanism and can be driven to rotate by the driving mechanism. A fixed socket is formed at one end of the fixed structure away from the driving mechanism. At least a part of the structure of the cap of the sampling tube can be limited and fixed in the fixed socket. A hollow channel is formed in the fixed structure and the hollow channel is connected to the fixed socket. A push rod assembly, inserted into the hollow channel and with at least a portion of its structure exposed within the fixing socket, the push rod assembly being able to be pushed by the tube cap to move along the hollow channel when the tube cap is fixed; and When the lid is opened, the cap of the sampling tube is inserted into the fixed socket. The push rod assembly is moved by the cap, and the detection sensor can detect the movement data of the push rod assembly. This causes the drive mechanism to drive the fixed structure to rotate in the forward direction to open the lid. When the lid is closed, the tube body of the sampling tube is moved to the opening of the fixed socket of the fixed structure. Because the cap remains in contact with and limits the push rod assembly, the detection sensor cannot detect the movement data of the push rod assembly. This causes the drive mechanism to drive the fixed structure to rotate in the reverse direction to close the lid. The fixing structure includes: Quick-connect assembly, the quick-connect assembly being connected to the drive mechanism; and A capping assembly for securing the cap of the sampling tube, the capping assembly being detachably connected to the quick-connect assembly.

2. The supplemental cap twisting device of claim 1, wherein, The base includes: Base plate; and A fixing block is installed on the base plate and on one side of the upright plate, abutting against the side of the upright plate.

3. The supplemental cap twisting device of claim 2, wherein, Two fixing blocks are provided, which are spaced apart and connected to the same side of the upright plate; And / or, the base further includes multiple support columns, which are spaced apart on the side of the base plate away from the upright plate.

4. The auxiliary capping device as described in claim 1, characterized in that, The end of the capping mechanism away from the drive mechanism is inclined away from the base.

5. The supplemental cap twisting device of claim 4, wherein, The base also includes a mounting platform, which is mounted on the side of the upright plate away from the base. The surface of the mounting platform away from the base has an inclined surface. The drive mechanism is mounted on the inclined surface, and the capping mechanism is connected to the end of the drive mechanism away from the mounting platform.

6. The supplemental cap twisting device of claim 5, wherein, The mounting platform is provided with mounting holes, and at least a portion of the drive mechanism is inserted into the mounting holes.

7. The supplemental cap twisting device of claim 1, wherein, The base also includes a counterweight, which is installed on the base. And / or, the auxiliary capping device is provided with a power interface, which is installed on the base; And / or, the auxiliary capping device further includes a controller, which is mounted on the upright plate; And / or, the auxiliary capping device further includes a positioning sensor, which is installed on the side of the upright plate facing the capping mechanism, and is used to detect whether a sampling tube has reached the position to be capped.

8. The auxiliary capping device as described in any one of claims 1 to 7, characterized in that, The drive mechanism includes: Mounting plate, which is connected to the base; A driving component, the driving component being connected to the mounting plate; and An auxiliary drive structure is connected to the mounting plate and to the drive component. The capping mechanism is connected to the auxiliary drive structure and is located on the side of the auxiliary drive structure facing the ground. The capping mechanism can be driven to rotate by the drive component through the auxiliary drive structure. The auxiliary drive structure and the drive component are located on opposite sides of the upright plate.

9. The supplemental cap twisting device of claim 1, wherein, The fixing structure has a stepped surface facing the drive mechanism within the hollow channel, and the push rod assembly includes: A push rod, which is inserted into the hollow channel; and A baffle plate is connected to the push rod and is able to abut against the stepped surface.

10. The supplemental cap twisting device of claim 9, wherein, The push rod assembly also includes an elastic element, which is sleeved on the outside of the push rod, and the two opposite ends of the elastic element abut against the baffle and the drive mechanism, respectively.

11. The supplemental cap twisting device of claim 1, wherein, The quick-connect assembly includes: A connecting rod, wherein a fixing hole is provided on the outer surface of the connecting rod, and a slot for connecting the screw cap assembly is provided at one end of the connecting rod, and the fixing hole communicates with the slot; A spherical structure, wherein the spherical structure is movably inserted into the fixing hole; and A sleeve is fitted over the connecting rod, and the sleeve and the connecting rod enclose a movable space. The sleeve is movable relative to the connecting rod, and the spherical structure is movable toward or away from the movable space when the sleeve moves, so as to disengage from or limit contact with the cap assembly.

12. The supplemental cap twisting device of claim 11, wherein, The sleeve has a guide slope on its surface facing the active space, and the guide slope is inclined toward the central axis of the sleeve in the direction of the cap assembly toward the connecting rod.

13. The supplemental cap twisting device of claim 11, wherein, The sleeve and the connecting rod form an installation gap, and the installation gap and the movable space are spaced apart. In the direction of the central axis of the sleeve, the sleeve forms an abutment surface facing the installation gap. The quick-connect assembly further includes a resilient reset member and a blocking member. The blocking member is connected to the connecting rod and is movable within the installation gap when the sleeve moves. The resilient reset member is installed within the installation gap and is elastically connected to the abutment surface and the blocking member.

14. The supplemental cap twisting device of claim 1, wherein, The end of the capping assembly opposite to the quick-connect assembly has a fixed socket, the depth of which is less than the length of the cap of the sampling tube.

15. The supplemental cap twisting device of claim 14, wherein, The cap assembly includes: A capping head, connected to the quick-connect assembly, wherein the retaining port is formed at one end of the capping head opposite to the quick-connect assembly; and A soft rubber collar is provided around the inner side of the capping head.

16. The auxiliary capping device as described in claim 15, characterized in that, The capping assembly further includes a clamping ring connected to the capping head, and the soft rubber sleeve is located between the clamping ring and the bottom wall of the groove of the fixing socket.

17. A biological detection apparatus, characterized by The biological detection apparatus includes the auxiliary cap device as claimed in any one of claims 1 to 16.

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