CN216918559U - Insert subassembly, spiral cover mechanism and supplementary spiral cover device soon - Google Patents

Abstract

The utility model discloses a quick-insertion assembly, a capping mechanism and an auxiliary capping device, wherein the quick-insertion assembly comprises a connecting rod, a spherical structure and a sleeve, the outer surface of the connecting rod is provided with a fixing hole, and one end of the connecting rod is provided with a It is connected to the slot of the capping assembly. The capping assembly is used to fix the cap of the sampling tube. The fixing hole is communicated with the slot. The spherical structure is movably inserted in the fixing hole. The sleeve is sleeved outside the connecting rod. The connecting rod is enclosed to form an active space. In the direction of the central axis of the sleeve, the active space is reduced. The sleeve can move relative to the connecting rod. The spherical structure can move toward or away from the active space when the sleeve moves to escape Or the limit is in contact with the capping assembly. The quick-insertion assembly provided by the present application can quickly realize the installation and disassembly of the capping assembly, thereby improving the convenience and efficiency of replacing the capping assembly, and enabling the use of the quick-inserting assembly to adapt and connect capping assemblies of different specifications.

Description

Quick plug assembly, capping mechanism and auxiliary capping device

technical field

The utility model relates to the technical field of medical instruments, in particular to a quick-insertion assembly, a capping mechanism and an auxiliary capping device.

Background technique

The capping machine is a kind of equipment that assists in opening the cap of the sampling tube. It is connected with the cap of the sampling tube through the capping mechanism, and then drives the capping mechanism to rotate through the driving mechanism to drive the cap to rotate and open the cap. The sampling tubes in the related art have different specifications, and in order to adapt to different sampling tubes, the capping machine in the related art needs to detach the capping mechanism from the driving mechanism and replace the capping mechanism, which has low replacement efficiency.

Utility model content

The main purpose of the utility model is to provide a quick-insertion assembly, a capping mechanism and an auxiliary capping device, which are intended to be adapted to sampling tubes of different sizes.

In order to achieve the above-mentioned purpose, the utility model proposes a quick-plug assembly, the quick-plug assembly includes:

A connecting rod, the outer surface of the connecting rod is provided with a fixing hole, and one end of the connecting rod is provided with a slot for connecting the capping assembly, and the capping assembly is used to fix the cap of the sampling tube, the fixing hole communicating with the slot;

a spherical structure, the spherical structure is movably inserted in the fixing hole; and

a sleeve, the sleeve is sleeved outside the connecting rod, the sleeve and the connecting rod enclose an active space, and the active space decreases in the direction of the central axis of the sleeve According to the arrangement, the sleeve can move relative to the connecting rod, and the spherical structure can move toward or away from the movable space when the sleeve moves, so as to be disengaged or limited to abut against the cap screw assembly.

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

Optionally, an installation gap is formed around the sleeve and the connecting rod, the installation gap and the movable space are arranged at intervals, and in the direction of the central axis of the sleeve, the sleeve is formed with a space facing the The abutment surface of the installation gap;

The quick-insertion assembly further includes an elastic reset piece and a blocking piece, the blocking piece is connected with the connecting rod and can move within the installation gap when the sleeve moves, and the elastic reset piece is installed on the installation gap. into the gap and elastically connected to the abutting surface and the blocking member.

Optionally, the blocking member includes:

a retaining ring, which is movably sleeved outside the connecting rod and abuts against the elastic reset member; and

a retaining ring, the retaining ring is connected with the connecting rod and is arranged on the side of the retaining ring away from the elastic reset member, the outer diameter of the retaining ring is larger than the inner diameter of the retaining ring and smaller than the The inner diameter of the sleeve.

Optionally, a clamping groove is formed on the outer surface of the connecting rod, the blocking ring is provided with a connecting groove, and is provided with a gap communicating with the connecting groove, and the blocking ring is clamped in the clamping groove.

Optionally, the baffle ring is further provided with an escape groove, the escape groove communicates with the connection groove and is located on the side of the baffle ring away from the notch.

Optionally, the connecting rod includes:

a plug-in segment, at least a part of the structure of the plug-in segment is inserted into the sleeve and enclosed with the sleeve to form a movable space, and the fixing hole is provided in the plug-in segment; and

A connecting segment, the connecting segment and the inserting segment are enclosed to form the slot, and a guide slope is formed at the connection between the connecting segment and the inserting segment.

Optionally, there are three fixing holes, the three fixing holes are arranged at intervals around the circumference of the connecting rod, the spherical structure is provided with three corresponding to the fixing holes, and one is inserted into the spherical structure. in one of the fixing holes;

And/or, an annular groove is formed on the outer surface of the sleeve;

And/or, a positioning groove is formed on the outer surface of one end of the cap screw assembly connected to the connecting rod, and at least part of the spherical structure is inserted into the positioning groove.

The utility model also proposes a capping mechanism, the capping mechanism includes a capping assembly and a quick-insertion assembly, and the quick-insertion assembly includes:

A connecting rod, the outer surface of the connecting rod is provided with a fixing hole, and one end of the connecting rod is provided with a slot for connecting the capping assembly, and the capping assembly is used to fix the cap of the sampling tube, the fixing hole communicating with the slot;

a spherical structure, the spherical structure is movably inserted in the fixing hole; and

a sleeve, the sleeve is sleeved outside the connecting rod, the sleeve and the connecting rod enclose an active space, and the active space decreases in the direction of the central axis of the sleeve According to the arrangement, the sleeve can move relative to the connecting rod, and the spherical structure can move toward or away from the movable space when the sleeve moves, so as to be disengaged or limited to abut against the cap screw assembly.

The utility model also proposes an auxiliary capping device, the auxiliary capping device includes a capping mechanism, the capping mechanism includes a capping assembly and a quick-insertion assembly, and the quick-insertion assembly includes:

A connecting rod, the outer surface of the connecting rod is provided with a fixing hole, and one end of the connecting rod is provided with a slot for connecting the capping assembly, and the capping assembly is used to fix the cap of the sampling tube, the fixing hole communicating with the slot;

a spherical structure, the spherical structure is movably inserted in the fixing hole; and

a sleeve, the sleeve is sleeved outside the connecting rod, the sleeve and the connecting rod enclose an active space, and the active space decreases in the direction of the central axis of the sleeve According to the arrangement, the sleeve can move relative to the connecting rod, and the spherical structure can move toward or away from the movable space when the sleeve moves, so as to be disengaged or limited to abut against the cap screw assembly.

The technical scheme of the utility model provides a quick-insertion assembly, which comprises a connecting rod, a spherical structure and a sleeve, wherein the connecting rod is provided with a slot for inserting with a capping assembly, and the capping assembly is used to fix the sampling tube. The pipe cap and the sleeve are sleeved outside the connecting rod, and are enclosed with the connecting rod to form an active space. The moving space is reduced in the direction of the central axis of the sleeve, and the spherical structure is fixed to the fixing hole of the connecting rod. When the capping assembly is inserted into the slot, the spherical structure is located at a position with a small movable space, and is abutted and limited between the sleeve and the capping assembly to limit and fix the capping assembly. When the capping assembly needs to be replaced, the sleeve can move relative to the connecting rod, so that the spherical structure located in the fixing hole of the connecting rod can be in a position with a larger active space, thereby releasing the effect of the spherical structure limiting and fixing the capping assembly, ensuring The spherical structure can move toward or away from the active space. At this time, if the capping assembly is pulled out of the slot, the spherical structure will move toward the active space under the pushing of the capping assembly. When the replaced capping assembly is inserted into the slot, the sleeve can be moved in the reverse direction so that the spherical structure is located in a smaller active space, thereby limiting and fixing the capping assembly and preventing the capping assembly from falling off. When moving, the spherical structure can be pushed away from the active space. The quick-plug assembly provided by the present application can quickly realize the installation and disassembly of the capping assembly, thereby improving the convenience and efficiency of replacing the capping assembly, and enabling the use of the quick-inserting assembly to adapt and connect capping assemblies of different specifications.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained based on the structures shown in these drawings without any creative effort.

1 is a schematic structural diagram of an embodiment of the auxiliary capping device of the present invention;

2 is a schematic cross-sectional structural diagram of the auxiliary capping device shown in FIG. 1;

Fig. 3 is the partial enlarged view of A place shown in Fig. 2;

Fig. 4 is a partial enlarged view of B shown in Fig. 2;

FIG. 5 is a schematic diagram of the exploded structure of the driving mechanism and the capping mechanism in the auxiliary capping device shown in FIG. 1;

Fig. 6 is the exploded structure schematic diagram of the drive mechanism in Fig. 5;

7 is a schematic cross-sectional structural diagram of the capping mechanism in the auxiliary capping device shown in FIG. 1;

FIG. 8 is a schematic cross-sectional structure diagram of the quick-insertion structure in FIG. 7;

Fig. 9 is the exploded structure schematic diagram of the quick-release structure shown in Fig. 8;

FIG. 10 is a schematic diagram of the exploded structure of the capping head assembly in the capping mechanism shown in FIG. 7;

FIG. 11 is a schematic structural diagram of the push rod assembly in the auxiliary capping device shown in FIG. 1 .

Description of reference numbers:

The realization, functional characteristics and advantages of the purpose of the present utility model will be further described with reference to the accompanying drawings in conjunction with the embodiments.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, not all of them. Example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the difference between the various components under a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly.

In addition, the descriptions involving "first", "second", etc. in the present invention are only for description purposes, and should not be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In addition, the meaning of "and/or" appearing in the whole text includes three parallel schemes, and taking "A and/or B as an example", it includes scheme A, scheme B, or scheme that A and B satisfy at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection required by the present utility model.

1 to 11 , the present invention proposes an auxiliary capping device 100 . The capping device 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 tube body. of the opening.

In the embodiment of the present invention, the auxiliary capping device 100 includes a base 10 , a driving mechanism 20 and a capping mechanism 30 , the base 10 includes a base 11 and a vertical plate 12 , and the vertical plate 12 is connected to a base 11 away from the ground. The driving mechanism 20 is installed on the base 10, the capping mechanism 30 is connected with the driving mechanism 20 and can be driven to rotate by the driving mechanism 20, and the capping mechanism 30 is used to fix the cap of the sampling tube 200. .

Wherein, the vertical plate 12 may be a plate-like structure or a bracket structure, etc., which is not further limited herein. In this embodiment, in order to facilitate the installation between structures, mutual interference of various mechanisms is avoided. The vertical plate 12 can be a plate-like structure. The plate-like structure can be installed in the middle of the base 11 or at the side of the base 11 . In this embodiment, in order to save installation space and improve the structural balance of the base 10 , the vertical plate 12 can be installed in the middle of the base 11 . When the driving mechanism 20 operates to open and close the cover of the sampling tube 200, the tube body of the sampling tube 200 may be clamped and fixed by a mechanical fixing device, or may be manually held and fixed by an experimenter. In this embodiment, the tube body of the sampling tube 200 is manually held and fixed by the experimenter, so as to further improve the efficiency of the operation of opening and closing the cover of the sampling tube 200 .

The technical solution of the present invention provides an auxiliary capping device 100 . The auxiliary capping mechanism 30 includes a base 10 , a driving mechanism 20 and a capping mechanism 30 , wherein the base 10 includes a base 11 and a vertical plate 12 . The base 11 is used to support and fix the entire auxiliary capping device 100 , and the vertical plate 12 can raise the height of the driving mechanism 20 and the capping mechanism 30 to provide enough space for placing the sampling tube 200 . When the cap of the sampling tube 200 needs to be opened, the experimenter can connect the sampling tube 200 to the capping mechanism 30 and fix the tube body of the sampling tube 200 so that the driving mechanism 20 drives the capping mechanism 30 During rotation, 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, so as to realize the operation of opening or closing the cap. The auxiliary capping device 100 provided by the present application can improve the intelligence of the operation of opening and closing the cover, improve the efficiency of opening and closing the cover, and reduce the labor cost. In addition, the auxiliary capping device 100 of the present application can also reduce the work intensity of the experimenter, reduce the wear and tear on the hands of the experimenter, and improve the safety protection for the experimenter. In addition, the auxiliary capping device 100 can also avoid the possibility that the sample in the sampling tube 200 is shaken and spilled during the manual cap opening process, resulting in the possibility of cross-infection.

Referring to FIG. 1 , in an embodiment of the present 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 the fixing block 112 is installed on one side of the vertical plate 12 and abuts against the vertical plate 12 sides.

It can be understood that the vertical plate 12 and the base 11 have an integral structure, and can also be connected by means of clip connection or screw bolt connection. In order to facilitate structural processing and transportation, in this embodiment, the vertical plate 12 and the base 11 are detachably connected by screws or bolts. The screws or bolts may penetrate through the bottom plate 111 to be connected to the side of the vertical plate 12 , or may penetrate the vertical plate 12 to be connected to the fixing block 112 . In order to facilitate assembly and disassembly, and improve the connection strength between the vertical plate 12 and the fixing block 112 , screws or bolts may penetrate through the vertical plate 12 to connect with the fixing block 112 . Abutting the fixing block 112 on the side surface of the vertical plate 12 enables the fixing block 112 to support the vertical plate 12 and prevent the vertical plate 12 from falling down due to uneven force.

Referring to FIG. 1 , in an embodiment of the present application, there are two fixing blocks 112 , and the two fixing blocks 112 are arranged at intervals and connected to the same side surface of the vertical plate 12 . It can be understood that two fixing blocks 112 can further improve the connection strength between the fixing blocks 112 and the vertical plate 12 . Disposing the two fixing blocks 112 on the same side of the vertical plate 12 can improve the supporting and limiting effect of the fixing blocks 112 on the vertical plate 12 , thereby further preventing the vertical plate 12 from falling.

Referring to FIG. 1 , in an embodiment of the present application, the base 11 further includes a pillar 113 , a plurality of pillars 113 are provided, and the pillars 113 are arranged at intervals on the side of the bottom plate 111 away from the vertical plate 12 . It can be understood that the arrangement of the upright can leave a gap between the bottom plate 111 and the ground, so as to facilitate the handling of the auxiliary capping device 100 . In addition, the upright column can also reduce the contact area between the base 10 and the ground, and reduce the requirement for the flatness of the ground, so as to facilitate the placement of the auxiliary capping device 100 relatively flat. Providing a plurality of uprights at intervals can improve the stability of the auxiliary capping device 100 during installation.

Referring to FIGS. 1 and 2 , in order to facilitate the experimenter to manually hold the sampling tube 200 and improve the comfort of the experimenter to hold the sampling tube 200 to open and close the cover, in an embodiment of the present application, the cap-screw mechanism 30 is far away from the driving mechanism One end of the 20 is inclined and disposed in a direction away from the base 10 .

1 and 2, in an embodiment of the present application, the base 10 further includes a mounting table 13, the mounting table 13 is mounted on the side of the vertical plate 12 away from the base 11, and the surface of the mounting table 13 away from the base 11 is formed There is an inclined surface 13 a , the driving mechanism 20 is mounted on the inclined surface 13 a , and the capping mechanism 30 is connected to the end of the driving mechanism 20 away from the mounting table 13 . It can be understood that setting the surface of the mounting table 13 away from the base 11 as the inclined surface 13a can ensure that the drive mechanism 20 is installed on the base 10 obliquely, so that the capping mechanism 30 connected to the drive mechanism 20 can be inclined in the standing direction of the base 10 . The capping mechanism 30 is connected to the end of the driving mechanism 20 away from the mounting table 13 , so that the end of the capping mechanism 30 away from the driving mechanism 20 is inclined and disposed in the direction away from the base 10 . The setting of the mounting table 13 is convenient for the connection and installation of the driving mechanism 20 , and the structure of the mounting table 13 is simple and convenient for manufacture and processing. In other embodiments, the mounting table 13 can be replaced with a mounting frame, the mounting frame has frames with different heights, and the driving structure is connected with the frames with different heights and is installed on the base 10 obliquely, so that the capping mechanism 30 is far away from the driving mechanism 20 . One end is inclined away from the base 10 .

Referring to FIG. 2 , in an embodiment of the present application, the mounting table 13 is provided with a mounting hole 13b, and at least part of the structure of the driving mechanism 20 is inserted into the mounting hole 13b. It can be understood that inserting at least part of the structure of the driving mechanism 20 into the mounting hole 13b can improve the stability of the connection and installation of the driving mechanism 20 and the mounting table 13, and reduce the volume of the auxiliary capping device 100, which is convenient for the auxiliary capping device 100 is placed in equipment such as biological safety cabinets.

Referring to FIG. 1 , in an embodiment of the present application, the base 10 further includes a counterweight 14 , and the counterweight 14 is installed 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 placed on the ground and preventing the overall structure from tilting. The counterweight 14 may be located on one or both sides of the opposite sides of the vertical plate 12 , which may be set according to specific requirements, and is not further limited herein. The counterweight block 14 installed on the side of the vertical plate 12 facing the fixed block 112 can be installed between the two fixed blocks 112 to further improve the space utilization rate and reduce the occupied space of the auxiliary capping device 100 .

Referring to FIG. 1 , in an embodiment of the present application, the auxiliary capping device 100 is provided with a power interface 40 , and the power interface 40 is installed on the base 11 . It can be understood that the power interface 40 is used for connecting with an external power source to input power to the auxiliary capping device 100 . Installing the power interface 40 on the base 11 can make the external circuit connected to the auxiliary capping device 100 closer to the ground, so as to facilitate the wiring of the external circuit and avoid interfering with the operation of the auxiliary capping device 100 . In order to further prevent the experimenter from touching the circuit during operation, the power interface 40 and the capping mechanism 30 can be located on opposite sides of the vertical plate 12 .

Referring to FIG. 1 and FIG. 2 , in an embodiment of the present application, the auxiliary capping device 100 further includes a controller 60 , and the controller 60 is installed on the vertical plate 12 . It can be understood that the controller 60 can detect the electrical components in the auxiliary capping device 100 . Installing the controller 60 on the vertical plate 12 can shorten the length of the connection line between the controller 60 and the driving mechanism 20, and can improve the signal transmission efficiency. In order to improve the installation stability of the controller 60 and make the structure installed on the base 10 more compact, the controller 60 can be installed on the side of the vertical plate 12 . In order to facilitate the connection between the driving mechanism 20 and the controller 60 , the controller 60 and the main electrical components of the driving mechanism 20 can be installed on the same side of the vertical plate 12 .

1 and 2 , in an embodiment of the present application, the auxiliary capping device 100 further includes an in-position sensor 50 . It is used to detect whether a sampling tube 200 reaches the position to be screwed. The in-position sensor 50 may be an optocoupler sensor or an infrared sensor or the like. The in-position sensor 50 can be wired or wirelessly connected to the controller 60. When the in-position sensor 50 detects that the sampling tube 200 reaches the position to be screwed, the in-position sensor 50 can send the information to the controller 60, so that the controller 60 can control the The driving mechanism 20 works, thereby realizing the opening and closing operation of the sampling tube. The position to be capped is the position where the capping mechanism 30 fixes the cap of the sampling tube 200 .

Referring to FIG. 1 , FIG. 3 and FIG. 5 , in an embodiment of the present application, the driving mechanism 20 includes a mounting plate 21 , a driving member 22 and an auxiliary driving structure 23 , the mounting plate 21 is connected to the base 10 , and the driving member 22 is connected to the mounting plate 21 is connected, the auxiliary driving structure 23 is connected to the mounting plate 21 and is connected to the driving member 22, the capping mechanism 30 is connected to the auxiliary driving structure 23, and is located on the side of the auxiliary driving structure 23 facing the ground, the capping mechanism 30 can pass the auxiliary The driving structure 23 is driven to rotate by the driving member 22 , and the auxiliary driving structure 23 and the driving member 22 are located on opposite sides of the vertical plate 12 .

It can be understood that the mounting plate 21 is used for connecting with the base 10 , so as to install and fix the entire driving mechanism 20 on the base 10 . The driving member 22 is a power element of the driving mechanism 20 , and is used to drive the cap-turning mechanism 30 to rotate through the auxiliary driving structure 23 to realize opening and closing the cap. The driving member 22 may be a structure such as an air cylinder or a motor. In the present application, by installing the driving member 22 and the auxiliary driving structure 23 on 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 and facilitating the The auxiliary capping mechanism 30 is placed in the biological safety cabinet to facilitate the storage of the auxiliary capping device 100 .

Referring to FIG. 5 , in an embodiment of the present application, the auxiliary driving structure 23 includes a runner 231 and a rotating shaft 232 . The runner 231 is connected to the driving member 22 and can be driven to rotate by the driving member 22 . The runner 231 is sleeved on the The rotating shaft 232 is outside the rotating shaft 232 and can drive the rotating shaft 232 to rotate together. It can be understood that exposing one end of the rotating shaft 232 to the outside of the runner 231 facilitates the connection and installation of the capping mechanism 30 to ensure that the rotating shaft 232 can drive the capping mechanism 30 to rotate together, thereby realizing the opening and closing operation of the cap. In other embodiments, the capping mechanism 30 can be directly connected to the side surface of the rotating wheel 231 to be driven to rotate by the rotating wheel 231 .

The driving member 22 may be a motor. 1 , in one embodiment, the auxiliary driving structure 23 further includes a driving wheel 233 and a timing belt 234 , the driving wheel 233 is connected to the driving member 22 and can be rotated by the driving member 22 , and the timing belt 234 is sleeved on the driving wheel 233 It is outside the runner 231 and can drive the driving wheel 233 and the runner 231 to rotate synchronously. It can be understood that the installation space of the auxiliary driving structure 23 arranged in this way is small, and the material cost is low. In another embodiment, the auxiliary driving structure 23 further includes a gear, the gear is connected with the driving member 22 and can be rotated by the driving member 22 , and the runner 231 is engaged with the gear. In other embodiments, the driving member 22 can also be a cylinder, the cylinder is mounted on the mounting plate 21, a rack is provided at the end of the cylinder, and the runner 231 is engaged with the rack to drive the rotation when the cylinder drives the rack to move. Wheel 231 rotates. It can be understood that the structural strength of the gear and the rack is higher, and the possibility of damage to the auxiliary driving structure 23 is small. When the auxiliary driving structure 23 is provided with a gear or rack structure, the outer surface of the rotating shaft 232 can be processed to form a gear ring, so that the gear and the rack directly drive the rotating shaft 232 to rotate.

1 and 2, in an embodiment of the present application, the auxiliary driving structure 23 further includes a mounting seat 235, the mounting seat 235 is connected to the mounting plate 21, the mounting seat 235 is formed with an installation space 235a, and the mounting seat 235 faces the driving member An escape hole 235b is formed on one side of the 22; the rotating shaft 232 and the runner 231 are installed in the installation space 235a and exposed through the escape hole 235b. It can be understood that installing the rotating shaft 232 and the runner 231 in the installation space 235a can protect the rotating shaft 232 and the runner 231, and prevent impurities such as dust from accumulating and affecting the smoothness of the rotation of the rotating shaft 232 and the runner 231. . The avoidance hole 235b can reveal part of the structure of the runner 231, so that the driving member 22 can be connected and driven.

In order to ensure that when the driving member 22 drives the rotating shaft 232 to rotate, the rotating shaft 232 can be smoothly rotated without jamming, thereby improving the performance reliability of the auxiliary capping device 100 . In an embodiment of the present application, the auxiliary driving structure 23 further includes an upper bearing 236 and a lower bearing 237, and the upper bearing 236 and the lower bearing 237 are installed in the installation space 235a, and are sleeved outside the rotating shaft 232 and are located on the runner. 231 are on opposite sides of the line of the rotating shaft 232 . See Figure 5.

6, in an embodiment of the present application, the mounting seat 235 includes a seat body 2351 and an upper cover 2352, the upper cover 2352 is connected to the side of the seat body 2351 away from the mounting plate 21, the mounting space 235a is formed in the seat body 2351, and the lower cover 2352 is connected to the seat body 2351. The bearing 237 is mounted on the mounting plate 21 , and the upper bearing 236 is mounted on the side of the upper cover 2352 facing the mounting plate 21 . It can be understood that the lower bearing 237 connected to the mounting plate 21 can be connected to the supporting runner 231 and the rotating shaft 232, and the upper bearing 236 can be connected and fixed to the seat body 2351 through the upper cover 2352, so as to be fixed relative to the mounting plate 21 and thus to the lower bearing 237 It acts on the rotating shaft 232 and the runner 231 together, and can limit and fix the rotating shaft 232 and the runner 231 . The upper cover 2352 connected with the seat main body 2351 can be directly locked and fixed with the surface of the seat main body 2351 facing away from the mounting plate 21 , which can improve the convenience of installing and fixing the upper bearing 236 . In other embodiments, the upper cover 2352 can also be locked and fixed with the mounting plate 21 .

In an embodiment of the present application, the driving member 22 and the mounting seat 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.

In an embodiment of the present 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 , and the fixing structure 31 is away from the driving mechanism. A fixed socket 3121a is formed at one end of the mechanism 20. At least part of the structure of the cap of the sampling tube 200 can be limited and fixed in the fixed socket 3121a. A hollow channel is formed in the fixed structure 31, and the hollow channel communicates with the fixed socket 3121a. The push rod assembly 32 is inserted in the hollow channel, and at least part of the structure is exposed in the fixed socket 3121a. The push rod assembly 32 can be pushed by the cap when the cap is fixed to move along the hollow channel. The detection sensor 33 is used to detect the movement of the push rod assembly 32. mobile data.

It can be understood that the detection sensor 33 may be an optocoupler sensor or an infrared sensor or the like. The fixed structure 31 can be connected with the rotating shaft 232 in the driving 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 to realize the opening and closing operation of the sampling tube 200 . When opening the cap, the experimenter can first insert the cap of the sampling tube 200 into the fixed socket 3121a, and the push rod assembly 32 can abut the cap of the sampling tube 200 when it is inserted, and be pushed and moved by the cap. , the detection sensor 33 can detect the movement data of the push rod assembly 32 and know that the experimenter is opening the cover, so that the driving mechanism 20 drives the fixed structure 31 to rotate forward to realize the cover opening operation. At that time, when the experimenter was performing the cap closing operation, the experimenter could move the tube body of the sampling tube 200 to the opening of the fixed socket 3121a of the fixed structure 31. At this time, since the cap located in the fixed socket 3121a always abuts the limit pusher The rod assembly 32, so the detection sensor 33 cannot detect the movement data of the push rod assembly 32, it can be judged that the experimenter wants to close the lid, and the driving mechanism 20 can drive the fixed structure 31 to rotate in the reverse direction to realize the lid closing operation. To operate, connect the cap and body. The capping mechanism 30 provided in the present application can effectively determine whether the purpose of the experimenter is to open or close the cap, so that misjudgment will not occur, and time for opening and closing the cap can be saved. The efficiency of opening and closing the cover of the auxiliary capping device 100 is improved.

Referring to FIG. 7 , in an embodiment of the present application, the fixing structure 31 is formed with a stepped surface 31 a facing the driving mechanism 20 in the hollow channel, and the push rod assembly 32 includes a push rod 321 and a blocking piece 322 , and the push rod 321 is inserted in the In the hollow channel, the blocking piece 322 is connected with the push rod 321 and can abut against the stepped surface 31a.

It can be understood that the push rod 321 and the blocking piece 322 can move in the hollow channel formed by the fixing structure 31 to cooperate with the detection sensor 33 to detect whether the purpose of the operator's operation is to open or close the cover. 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 blocking piece 322 moves toward the stepped surface 31a and abuts against the stepped surface 31a to limit the position of the push rod 321 , to prevent the push rod 321 from sliding out of the hollow channel of the fixing structure 31 directly. It can be understood that, in order to ensure the movement of the push rod 321 and facilitate the abutment of the blocking piece 322 with the step surface 31a for a limited position, the cross section of the blocking piece 322 in the moving direction of the push rod 321 is larger than that of the push rod 321 . In other embodiments, the side wall of the hollow channel can form a limit groove, and the blocking piece 322 can be inserted into or disengaged from the limit groove when the push rod 321 moves, so as to ensure the limit of the push rod 321 and ensure the push rod 321 It cooperates with the detection sensor 33 to realize the detection function.

In an embodiment of the present application, the push rod 321 includes an upper rod 3211 and a lower rod 3212 , and the upper rod 3211 is detachably connected to the lower rod 3212 . It can be understood that the detachable connection of 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 and detachably connected, for example, the upper rod 3211 is provided with one of a snap protrusion or a mounting groove, and the lower rod 3212 is provided with the other of a snap protrusion or a mounting groove, the snap protrusion and the mounting groove. Threaded adapter connection. Alternatively, the upper rod 3211 and the lower rod 3212 can also be indirectly and detachably connected.

Referring to FIG. 7 , in an embodiment of the present application, the blocking piece 322 includes a piece body 3221 , a first connecting column 3222 and a second connecting column 3223 . The first connecting column 3222 is provided on one side surface of the piece body 3221 and is connected with the piece body 3221 . The upper rod 3211 is detachably plugged, and the second connecting post 3223 is disposed on the surface of the main body 31211 away from the first connecting post 3222, and is detachably plugged with the lower rod 3212. It can be understood that protruding the first connecting column 3222 and the second connecting column 3223 on the main body 3221 can not only limit the position of the push rod 321, but also facilitate the assembly and disassembly of the upper rod 3211 and the lower rod 3212, which can simplify the upper rod 3211 The structure of the upper rod 3211 and the lower rod 3212 is convenient for the fabrication and processing of the upper rod 3211 and the lower rod 3212. The first connection post 3222 and the upper rod 3211, and the second connection post 3223 and the lower rod 3212 can be connected by plugging, and connected and fixed by means of fastening connection or snap connection.

In order to improve the connection strength of the first connection post 3222 and the upper rod 3211 and to limit the position of the two in the extension direction of the push rod 321, in an embodiment of the present application, the first connection post 3222 is provided with an inner thread or an outer thread. One of the threads, the upper rod 3211 is provided with the other one of the inner thread or the outer thread, and the inner thread is adapted to be connected to the outer thread. Similarly, in order to improve the connection strength of the second connection post 3223 and the lower rod 3212, and to limit the position of the two in the extension direction of the push rod 321, the second connection post 3223 is provided with either an internal thread or an external thread, The lower rod 3212 is provided with the other of the inner thread or the outer thread, and the inner thread is adapted to be connected with the outer thread.

Referring to FIG. 7 , in an embodiment of the present application, the push rod assembly 32 further includes an elastic member 323 , the elastic member 323 is sleeved outside the push rod 321 , and opposite ends of the elastic member 323 are respectively connected to the blocking piece 322 and the driving mechanism 20 . Abut.

It can be understood that the elastic member 323 can assist the push rod assembly 32 to return to the initial position, that is, the position where the blocking piece 322 and the stepped surface 31a abut against the limit. When the sampling tube 200 pushes the push rod assembly 32 to move, the blocking piece 322 will move in a direction away from the step surface 31a, and at this time, the elastic member 323 will be squeezed and deformed. When the experimenter completes the operation of opening and closing the cover and takes out the sampling tube 200 from the fixed socket 3121a, the push rod 321 will no longer be pushed. At this time, since there is no external force, the elastic member 323 will return to the original position, that is, the elastic member 323 will Push the blocking piece 322 to move toward the stepped surface 31a until the blocking piece 322 abuts against the stepped surface 31a. The arrangement of the elastic member 323 can improve the efficiency of the return movement of the push rod assembly 32 and ensure the accuracy of the push rod assembly 32 returning to the initial position, so as to prepare for the next operation of opening and closing the cover.

Referring to FIG. 3 , in an embodiment of the present application, the rotating shaft 232 is a hollow structure, and at least part of the push rod 321 is inserted into the rotating shaft 232 and can be exposed outside the rotating shaft 232 when moving, and the detection sensor 33 It is located on the side of the rotating shaft 232 away from the fixed structure 31 . In this way, when the sampling tube 200 pushes the push rod assembly 32 to move upward, the push rod assembly 32 will be exposed on the side of the detection sensor 33 where the rotating shaft 232 is located, and will move in the direction of the detection sensor 33 , so that the push rod assembly 32 can be detected by the detection sensor 33 . detection. It can be understood that when the detection sensor 33 is located on the side of the rotating shaft 232 away from the fixed structure 31 , the distance between the push rod 321 and the detection sensor 33 can be shortened, and the detection accuracy of the detection sensor 33 can be improved. In addition, the detection sensor 33 is arranged in this way, so that the end of the lower push rod 321 facing away from the upper push rod 321 can be accommodated in the fixing structure 31 , so as to improve the protection effect on the push rod 321 . Of course, in other embodiments, the detection sensor 33 can also be provided on the base 10 , and the end of the lower push rod 321 away from the upper push rod 321 is exposed outside the fixing structure 31 .

Referring to FIG. 6, in an embodiment of the present application, the driving mechanism 20 further includes a mounting member 24, the mounting member 24 includes an extension plate 241 and a baffle 242, the extension plate 241 is connected to the side of the mounting seat 235 away from the mounting plate 21, and Extending in the direction away from 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 away from the mounting seat 235, and in the extending direction of the rotating shaft 232, the baffle 242 is on the mounting seat 235 The projection covers the rotating shaft 232, and the baffle 242 is provided with guide holes. It can be understood that the extension plate 241 is used for installing the detection sensor 33 , and the detection sensor 33 is installed on the side of the extension plate 241 facing the rotation shaft 232 . The guide hole provided on the baffle plate 242 can allow the push rod 321 to pass through when the push rod 321 moves, so as to guide the push rod 321 to move, so as to prevent the push rod 321 from tilting during the pushing and moving process and affecting the detection accuracy of the detection sensor 33 .

Referring to FIG. 11 , in an embodiment of the present application, the outer surface of the end of the push rod 321 connected to the rotating shaft 232 is provided with a rotation-stopping plane 321a. The setting of the anti-rotation plane 321a can limit the relative position of the push rod 321 and the rotating shaft 232 in the circumferential direction, ensure that the push rod 321 can rotate along with the rotating shaft 232, and increase the gap between the cap of the sampling tube 200 and the capping mechanism 30 The friction force improves the efficiency and effect of the opening and closing cover operation.

Referring to FIGS. 4 and 11 , in an embodiment of the present application, a boss 3213 is provided at one end of the push rod 321 facing away from the driving mechanism 20 . On a plane perpendicular to the extension direction of the push rod 321 , the cross section of the boss 3213 larger than the cross section of the push rod 321 . The bosses 3213 can increase the force bearing area of the push rod assembly 32 in contact with the cap of the sampling tube 200 , so as to prevent the push rod assembly 32 from skewing when the sampling tube 200 is pushed up. The boss 3213 can be a circular truncated cone, a prism, or other irregular structures. In this embodiment, the boss 3213 can be a prism, so that the lower rod 3212 can be held and rotated when the lower rod 3212 and the second connecting post 3223 are connected.

In an embodiment of the present application, the fixing structure 31 includes a quick-insertion assembly 311 and a capping assembly 312, the quick-inserting assembly 311 is connected to the driving 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-plug assembly 311 . It can be understood that the detachable connection of the screw cap assembly 312 to the quick-insertion assembly 311 enables the fixing structure 31 to be adapted to fix sampling tubes 200 of different specifications, that is, the screw cap assembly 312 can be replaced according to the specifications of the sampling tubes 200 . The screw cap assembly 312 and the quick-insertion assembly 311 can be detachably connected by means of screw connection or snap connection.

7 and 8, in an embodiment of the present application, the quick-insertion 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 A slot 3111d is provided for connecting 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. The spherical structure 3112 is movably inserted in the fixing hole 3111c. The 3113 is sleeved outside the connecting rod 3111, and the sleeve 3113 and the connecting rod 3111 enclose an active space 311a. In the direction of the central axis of the sleeve 3113, the active space 311a is reduced and the sleeve 3113 can be opposite to the connecting rod 3111. When moving, the spherical structure 3112 can move toward or away from the movable space 311 a when the sleeve 3113 moves, so as to be disengaged or limited to abut against the cap screw assembly 312 .

It can be understood that the spherical structure 3112 can be made of metal materials such as steel, plastic materials, or ceramic materials. The movable space 311a can be reduced in the direction of the screw cap assembly 312 toward the quick-insertion assembly 311 , or in the direction of the quick-insertion assembly 311 toward the screw cap assembly 312 , as long as the size of the active space 311a changes. 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 capping assembly 312 is inserted into the slot 3111d, the spherical structure 3112 is located at a position where the movable space 311a is small, and abuts between the sleeve 3113 and the capping assembly 312 to limit and fix the capping 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 position with a larger movable space 311a, thereby releasing the limit of the spherical structure 3112 The effect of fixing the capping assembly 312 ensures that the spherical structure 3112 can move toward 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 be pushed toward the active space 311a by the capping assembly 312. move. When the replaced capping assembly 312 is inserted into the slot 3111d, the sleeve 3113 can be reversely moved so that the spherical structure 3112 is located at a smaller position in the movable space 311a, thereby limiting and fixing the capping assembly 312 and preventing the capping assembly 312 When it falls off, when the sleeve 3113 moves in the opposite direction, it can push the spherical structure 3112 to move away from the movable space 311a. The quick-insertion assembly 311 provided in the present application can quickly install and disassemble the cap-screw assembly 312 by sliding the sleeve 3113 relative to the connecting rod 3111 , which improves the convenience and efficiency of replacing the cap-screw assembly 312 , and can also ensure the quick-insertion assembly 311 The cap assembly 312 of different specifications can be adapted to be connected.

Referring to FIG. 7 , in an embodiment of the present application, a guide slope 3113a is formed on the surface of the sleeve 3113 facing the movable space 311a, and the guide slope 3113a faces the direction of the sleeve 3113 in the direction of the cap assembly 312 facing the connecting rod 3111 The direction of the central axis is inclined.

It can be understood that when the guide slope 3113a is set in this way, the sleeve 3113 can move in the direction away from the cap screw assembly 312 to contact the limit fixation of the cap screw assembly 312, so as to ensure that the end of the connecting rod 3111 connected to the cap screw assembly 312 can be fixed. More are accommodated in the sleeve 3113 to improve the protection of the connection between the connecting rod 3111 and the screw cap assembly 312 , and facilitate the connection and installation of the connecting rod 3111 and the sleeve 3113 . The guiding slope 3113a may be a flat surface or a stepped slope, which is not further limited herein.

Referring to FIG. 8 , in an embodiment of the present application, the sleeve 3113 and the connecting rod 3111 are enclosed to form an installation gap 311b, the installation gap 311b and the movable space 311a are arranged at intervals, and in the direction of the central axis of the sleeve 3113, the sleeve 3113 is formed with an abutment surface facing the installation gap 311b; the quick-plug assembly 311 also includes an elastic reset piece 3114 and a blocking piece 3115, the blocking piece 3115 is connected with the connecting rod 3111 and can move within the installation gap 311b when the sleeve 3113 moves , the elastic reset member 3114 is installed in the installation gap 311b and elastically connected to the abutting surface and the blocking member 3115 .

It can be understood that the blocking member 3115 may be a single component, or may be composed of multiple structures. The space between the installation gap 311b and the movable space 311a can prevent the spherical structure 3112 from moving into the installation gap 311b when the sleeve 3113 moves relative to the connecting rod 3111 , thereby affecting the stability of the connection and fixation of the cap assembly 312 . The elastic restoring member 3114 and the blocking member 3115 can assist the movement of the sleeve 3113 to ensure that the sleeve 3113 and the connecting rod 3111 can return to the original position. When the sleeve 3113 moves away from the cap assembly 312 relative to the connecting rod 3111 , the abutting surface will move toward the blocking member 3115 to compress the elastic restoring member 3114 and deform the elastic restoring member 3114 . After the screw cap 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 the deformation and act on the abutting surface, thereby pushing the sleeve 3113 to return to its original state. position, so that the experimenter's operation is more labor-saving and convenient.

Referring to FIG. 8 , in an embodiment of the present application, the blocking member 3115 includes a retaining ring 31151 and a retaining ring 31152 . The retaining ring 31151 is movably sleeved outside the connecting rod 3111 and abuts against the elastic restoring member 3114 . The connecting rod 3111 is connected and arranged on the side of the retaining ring 31151 away from the elastic restoring member 3114 .

It can be understood that setting the outer diameter of the retaining ring 31152 larger than the inner diameter of the retaining ring 31151 can ensure that the retaining ring 31152 can limit the position of the retaining ring 31151, so that when the sleeve 3113 moves relative to the connecting rod 3111, the elastic restoring member 3114 can be elastically deformed . Setting the outer diameter of the retaining ring 31151 to be smaller than the inner diameter of the sleeve 3113 can ensure that the sleeve 3113 can move relative to the connecting rod 3111 in a direction away from the cap screw assembly 312 . The arrangement of the retaining ring 31151 can improve the limiting effect of the elastic reset member 3114 and ensure the reliability of the elastic reset member 3114 driving the sleeve 3113 to move and restore.

Referring to FIG. 9, in an embodiment of the present application, the outer surface of the connecting rod 3111 is formed with a clamping groove 3111b, the blocking ring 31152 is provided with a connecting groove 3115a, and a gap 3115b communicated with the connecting groove 3115a is formed, and the blocking ring 31152 is locked Connected to the card slot 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 limited in the locking groove 3111b, so as to realize the connection and fixing of the retaining ring 31152 and the connecting rod 3111. The retaining ring 31152 and the connecting rod 3111 facilitate the assembly and disassembly of the quick-insertion assembly 311 by means of plugging, so that during maintenance, part of the structure of the quick-insertion assembly 311 can be replaced, which can reduce the maintenance cost of the quick-insertion assembly 311 . In other embodiments, the blocking ring 31152 can also be protruded from the outer surface of the connecting rod 3111 .

Referring to FIG. 9 , in an embodiment of the present application, the blocking ring 31152 is further provided with an escape groove 3115c, the escape groove 3115c communicates with the connecting groove 3115a and is located on the side of the blocking ring 31152 away from the notch 3115b. It can be understood that the setting of the escape groove 3115c provides a deformation space for the expansion of the notch 3115b of the baffle ring 31152, so that the size of the notch 3115b can be reduced and the strength of the installation connection between the baffle ring 31152 and the connecting rod 3111 can be improved. When the blocking ring 31152 is connected with the connecting rod 3111 , the gap 3115b will gradually increase and then shrink to restore, so that the blocking ring 31152 can be buckled in the slot 3111b. In order to further ensure the deformation of the notches 3115b, there may be two clearance grooves 3115c.

Referring to FIGS. 8 and 9 , in an embodiment of the present application, the connecting rod 3111 includes a plugging segment 31111 and a connecting segment 31112 , and at least part of the structure of the plugging segment 31111 is inserted into the sleeve 3113 and is connected with the sleeve 3113 Enclosed to form an active space 311a, a fixing hole 3111c is provided in the insertion section 31111, the connection section 31112 and the insertion section 31111 are enclosed to form a slot 3111d, and a guide slope 3111a is formed at the connection between the connection section 31112 and the insertion section 31111. It can be understood that a part of the structure of the plug-in segment 31111 is inserted into the sleeve 3113 to be connected with the sleeve 3113 . One end of the plug-in segment 31111 away from the connection segment 31112 can be fixedly connected with the rotating shaft 232 to ensure that the connecting rod 3111 can rotate together with the rotating shaft 232 . When the sleeve 3113 and the connecting rod 3111 are installed, the guide slope 3111a can guide the connecting end to be inserted into the sleeve 3113 . The cap assembly 312 is connected to the end of the connecting section 31112 away from the plug section 31111. In this embodiment, the diameter of the plug section 31111 is smaller than that of the connecting section 31112, so that the structure of the connection between the connecting rod 3111 and the cap assembly 312 can be improved. strength.

Referring to FIG. 9 , in an embodiment of the present application, there are three fixing holes 3111c , the three fixing holes 3111c are arranged at intervals around the circumference of the connecting rod 3111 , the spherical structures 3112 are provided with three corresponding fixing holes 3111c , and one spherical structure 3112 is inserted into a fixing hole 3111c. This arrangement can not only ensure the structural strength of the connecting rod 3111 itself, but also improve the connection and limiting effect of the spherical structure 3112 on the cap-screw assembly 312, and improve the stability of the cap-screw assembly 312 when it is connected and fixed to the connecting rod 3111, so that the screw cap can be further improved. The cap assembly 312 drives the reliability of the rotation of the tube cap relative to the tube body.

Referring to FIG. 9 , in an embodiment of the present application, an annular groove 3113b is formed on the outer surface of the sleeve 3113 . The arrangement of the annular groove 3113b can increase the resistance between the sleeve 3113 and the hands of the experimenter, and facilitate the experimenter to hold the sleeve 3113 to move the sleeve 3113 relative to the connecting rod 3111 .

7 and 10 , in an embodiment of the present application, a positioning groove 3121g is formed on the outer surface of the end connecting the cap assembly 312 and the connecting rod 3111, and at least part 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 the capping assembly 312 from sliding in the direction of the central axis. In addition, the positional relationship between the cap screw assembly 312 and the connecting rod 3111 in the circumferential direction can be limited by the way that the spherical structure 3112 and the positioning groove 3121g are clamped, so as to prevent the cap screw assembly 312 from rotating relative to the connecting rod 3111, thereby ensuring that the fixed structure 31 drives the The reliability of the rotation of the cap of the sampling tube 200.

Referring to FIG. 4 , in an embodiment of the present application, a fixed socket 3121 a is formed at one end of the screw cap assembly 312 facing away from the quick-insertion assembly 311 , and the depth of the fixed socket 3121 a is less than the length of the cap of the sampling tube 200 . It can be understood that this can ensure that the cap of the sampling tube 200 does not completely enter the capping assembly 312 during the cap opening and closing process, thereby reducing the possibility of contact between the nozzle of the sampling tube 200 and the capping assembly 312 and reducing the risk of cross-contamination. The occurrence rate is increased, and the reliability of the sample data in the sampling tube 200 is improved.

7 and 10, in an embodiment of the present 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-plug assembly 311, and the fixed socket 3121a is formed on the capping head 3121 away from At one end of the quick-insertion assembly 311 , a soft rubber collar 3122 is arranged around the inner side of the capping head 3121 . It can be understood that the capping head 3121 is used to connect and fix the connecting rod 3111, and the soft rubber collar 3122 provided in the fixing socket 3121a can increase the friction between the capping assembly 312 and the cap of the sampling tube 200, and can improve the switch Reliability of lid operation. In addition, the soft rubber collar 3122 can also protect the cap of the sampling tube 200 to prevent the cap from being worn. The soft rubber collar 3122 can be connected to the capping head 3121 by means of bonding or clipping.

In order to improve the installation and fixing stability of the soft rubber collar 3122, the soft rubber collar 3122 can be connected to the fixing slot 3111d by an interference fit. 7 and 10, in an embodiment of the present application, the capping assembly 312 further includes a pressing ring 3123, the pressing ring 3123 is connected with the capping head 3121, and the soft rubber collar 3122 is limited to the pressing ring 3123 and the fixing ring 3123. between the groove bottom walls of the socket 3121a. The pressing ring 3123 can press and fix the soft rubber collar 3122 in the fixing socket 3121 a to prevent the soft rubber collar 3122 from being separated from the capping head 3121 . The pressing ring 3123 can be connected and fixed with the capping head 3121 by means of snap connection or screw connection. In this embodiment, in order to facilitate maintenance, the pressing ring 3123 can be threadedly connected to the capping head 3121 to further improve the connection strength between the pressing ring 3123 and the capping head 3121 .

Referring to FIG. 4 , in an embodiment of the present application, a first inclined surface 3122 a is formed on the side of the soft rubber sleeve 3122 facing the pressing ring 3123 . 3122a is inclined toward the central axis of the soft rubber collar 3122. It can be understood that the first inclined surface 3122a can guide the cap when the cap of the sampling tube 200 is inserted, so as to ensure that the side surface of the cap can abut against the inner surface of the soft rubber collar 3122 .

4 and 10 , in an embodiment of the present application, the pressing ring 3123 is provided with a pressing protrusion 31231 on the side facing the soft rubber collar 3122 , and the pressing protrusion 31231 abuts against the first inclined surface 3122 a. It can be understood that the pressing protrusion 31231 can press the first inclined surface 3122a, so as to achieve the purpose of further pressing the soft rubber collar 3122, thereby preventing the soft rubber collar 3122 from rotating relative to the capping head 3121 during the process of opening and closing the cover. Opening and closing cover operation is not possible.

In order to further guide the insertion of the cap of the sampling tube 200, referring to FIG. 4, in an embodiment of the present application, a second inclined surface 3223a is provided on the side of the pressing ring 3123 facing the opening of the fixing socket 3121a. In the direction of the soft rubber collar 3122 , the second inclined surface 3223 a is inclined toward the central axis of the pressing ring 3123 .

7 and 10, in an embodiment of the present application, the quick-plug assembly 311 is formed with a slot 3111d, the capping head 3121 includes a main body portion 31211 and a connecting portion 31212, the fixed socket 3121a is formed in the main body portion 31211, and the connecting portion 31212 The connecting portion 31212 is connected to the side of the main body portion 31211 away from the opening of the fixed socket 3121a, and the connecting portion 31212 is inserted into the slot 3111d. The main body portion 31211 is used for fixing the cap of the sampling tube 200 , and the connecting portion 31212 is used for connecting with the quick-insertion assembly 311 . Inserting the connecting portion 31212 into the slot 3111d facilitates the connection and installation of the capping head 3121 and the quick-insertion assembly 311 , and can improve the connection strength between the capping head 3121 and the quick-insertion assembly 311 .

In order to ensure the connection strength between the main body 31211 and the cap of the sampling tube 200, improve the effect of the rotating shaft 232 driving the cap of the sampling tube 200 to rotate, and reduce energy loss, the radial distance of the quick-insertion assembly 311 can be smaller than that of the main body. The radial distance of the part 31211 is set.

Referring to FIG. 7 , in an embodiment of the present application, the slot 3111d includes a first accommodating section 3111e and a second accommodating section 3111f, and a limit step 3121e is formed at the connection between the first accommodating section 3111e and the second accommodating section 3111f. The portion 31212 includes a fixed section 3121c and a limit section 3121d. The fixed section 3121c is inserted into the first accommodating section 3111e and connected to the quick-insertion assembly 311. The fixed section 3121c and the capping head 3121 are connected to opposite sides of the limit section 3121d. , the limiting section 3121d is inserted into the second accommodating section 3111f, and at least part of the structure is in contact with the limiting step 3121e. The limiting step 3121e can limit the connecting portion 31212 when the connecting portion 31212 is inserted into the slot 3111d, so as to limit the distance that the connecting portion 31212 is inserted into the slot 3111d, so as to locate the connection position of the capping head 3121 and the quick-insertion assembly 311, thereby ensuring the rotation. The accuracy of the connection position between the cover head 3121 and the quick-plug assembly 311.

Referring to FIG. 10 , in an embodiment of the present application, the outer surface of the limiting segment 3121d forms a limiting plane 3121f. 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.

Referring to FIG. 10 , in an embodiment of the present application, an anti-slip groove 3121b is formed on the outer surface of the main body portion 31211 . The anti-skid grooves 3121b can increase the resistance between the capping head 3121 and the hands of the experimenter, and facilitate the experimenter to hold the capping head 3121 to move the capping head 3121 relative to the connecting rod 3111 , thereby completing the replacement of the capping assembly 312 .

The specific operation of the experimenter using the auxiliary capping device 100 provided by an embodiment of the present application may be as follows: when the experimenter is about to open the sampling tube 200, he will move the sampling tube 200 close to the fixed socket 3121a, and the in-position sensor 50 will obtain the distance information, The information is sent to the controller 60, so that the controller 60 controls the driver 22 to be in a standby state. When the experimenter pushes the sampling tube 200 upwards into the fixed socket 3121a, the end face of the boss 3213 provided at the end of the lower rod 3212 will contact the sampling tube 200 and be pushed upwards. At this time, the entire push rod assembly 32 moves upward accordingly, the blocking piece 322 will compress the elastic member 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 actuation of the driving member 22 to rotate the driving member 22 through the timing belt 234 , the wheel 231 and the rotating shaft 232 . The rotating shaft 232 can drive the capping head 3121 assembly to rotate through the connecting rod 3111 to open the cap.

After the cap is opened, the experimenter moves the sampling tube 200 downward from the fixed socket 3121a. At this time, the compression and rebound force of the elastic member 323 is smaller than the friction force of the soft rubber collar 3122 on the tube cap, and the push rod assembly 32 will not sink. 33 pairs of up-rod 3211 up-moving information is always in the recognition state.

When the experimenter finishes processing the sample and prepares to close the cover, he only needs to move the sampling tube 200 to touch the end of the cap. At this time, the in-position sensor 50 will acquire the distance information, so that the controller 60 can control the start-up driver 22, thereby The rotating shaft 232 is driven to rotate in the reverse direction, thereby driving the capping head 3121 assembly to rotate in the reverse direction to close the cap. When the cover is closed, the sampling tube 200 is removed as a whole, and the blocking piece 322 in the push rod assembly 32 rebounds to the stepped surface 31a of the blocking piece 322 under the action of the compressive rebound force of the elastic member 323 to abut against the stepped surface 31a for a limit. , the bottom of the entire push rod assembly 32 sinks into the fixed socket 3121a of the capping head 3121 assembly, to wait for the next cycle of opening and closing the cap.

The present invention also provides a biological detection device, which includes an auxiliary capping device 100. The specific structure of the auxiliary capping device 100 refers to the above-mentioned embodiments, because the biological detection device adopts all the technologies of all the above-mentioned embodiments. Therefore, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be repeated here.

In an embodiment of the present application, the biological detection device may be an automated workstation device, which may include a test device and an auxiliary capping device 100, and the test device may be used for pre-analytical management and processing of samples. The biological detection equipment has a high degree of automation.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent structural transformations made by using the contents of the description and drawings of the present invention under the inventive concept of the present invention, or Direct/indirect applications in other related technical fields are included in the scope of patent protection of the present invention.

Claims (10)

1. A quick-connect assembly, comprising:

the sampling tube comprises a connecting rod, wherein a fixing hole is formed in the outer surface of the connecting rod, a slot for connecting a screw cap component is formed in one end of the connecting rod, the screw cap component is used for fixing a tube cap of the sampling tube, and the fixing hole is communicated with the slot;

the spherical structure is movably inserted into the fixing hole; and

the sleeve, the muffjoint is located outside the connecting rod, the sleeve with the connecting rod encloses to close and is formed with the activity space on telescopic axis direction, the activity space is and reduces the setting, the sleeve can be relative the connecting rod removes, globular structure can in when the sleeve removes towards or deviate from the activity space removes to break away from or spacing butt in the spiral cover subassembly.

2. The quick-insert assembly according to claim 1, wherein a surface of the sleeve facing the movable space is formed with a guide slope inclined toward a central axis of the sleeve in a direction in which the cap assembly faces the connecting rod.

3. The quick-insert assembly according to claim 1, wherein the sleeve and the connecting rod are enclosed to form a mounting gap, the mounting gap and the movable space are arranged at intervals, and the sleeve is provided with an abutting surface facing the mounting gap in the central axis direction of the sleeve;

the quick-insertion assembly further comprises an elastic resetting piece and a blocking piece, the blocking piece is connected with the connecting rod and can move in the installation gap when the sleeve moves, and the elastic resetting piece is installed in the installation gap and elastically connected with the abutting surface and the blocking piece.

4. The quick-insert assembly of claim 3, wherein the stop comprises:

the check ring is movably sleeved outside the connecting rod and is abutted against the elastic resetting piece; and

the baffle ring is connected with the connecting rod and arranged on one side, deviating from the elastic reset piece, of the check ring, and the outer diameter of the baffle ring is larger than the inner diameter of the check ring and smaller than the inner diameter of the sleeve.

5. The quick-connect assembly according to claim 4, wherein the connecting rod has a slot formed on an outer surface thereof, the retainer ring has a connecting groove and a notch communicating with the connecting groove, and the retainer ring is engaged in the slot.

6. The quick-insert assembly according to claim 5, wherein the retaining ring is further provided with a relief groove, the relief groove is communicated with the connecting groove and is located on a side of the retaining ring away from the notch.

7. The quick-connect assembly of claim 1, wherein the link comprises:

at least part of the structure of the insertion section is inserted into the sleeve and forms a movable space with the sleeve in an enclosing manner, and the fixing hole is formed in the insertion section; and

the connecting section and the inserting section are enclosed to form the inserting slot, and a guide inclined plane is formed at the connecting position of the connecting section and the inserting section.

8. The quick-insert assembly according to any one of claims 1 to 7, wherein there are three fixing holes, three fixing holes are arranged at intervals around the circumference of the connecting rod, there are three ball-shaped structures corresponding to the fixing holes, and one ball-shaped structure is inserted into one fixing hole;

and/or, the outer surface of the sleeve is provided with an annular groove;

and/or a positioning groove is formed on the outer surface of one end, connected with the connecting rod, of the spiral cover assembly, and at least part of the spherical structure is inserted into the positioning groove.

9. A capping mechanism comprising a capping assembly and a quick-connect assembly as claimed in claims 1 to 8.

10. An auxiliary capping device comprising a quick-connect assembly as claimed in any one of claims 1 to 8;

alternatively, the auxiliary capping device comprises a capping assembly and a quick-connect assembly as claimed in claims 1 to 8.

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