Tracheal plug connector, air pressure monitoring component of plunger chamber and library preparation system

Abstract

The present invention provides an air pressure monitoring component and library preparation system for a tracheal plug-in joint and a plunger cavity, comprising: a seat structure and a connection structure; the first end of the connection structure is provided with a tracheal channel for inserting an air pipe along a first direction, the second end of the connection structure is provided with a rear end connecting channel, the tracheal channel and the rear end connecting channel are connected to each other; the seat structure is provided with a seat channel, the connecting structure is passed through the seat channel, and the connecting structure at the target position can swing with the inserted trachea. The present invention can make the trachea still have the freedom of floating after insertion, and then, by floating within a certain range, it can adapt to the position change of the trachea, avoid the jamming of the card box, and effectively ensure the withdrawal of the card box.

Description

Technical Field

[0001] The invention relates to the field of tracheal connection, and in particular to a tracheal plug-in joint, an air pressure monitoring component of a plunger cavity, and a library preparation system. Background Art

[0002] In some application fields, it is necessary to realize automatic and quick plugging and unplugging of trachea, for example: in the field of library preparation, medical equipment, kitchen and bathroom, etc. Furthermore, taking the field of library preparation as an example, a trachea plug-in connector can be used to realize the quick plugging of the cassette trachea.

[0003] In the existing related technology, the trachea plug connector has a trachea channel for inserting the trachea. After the trachea is inserted into the trachea channel, due to deformation of the device / equipment at the trachea connection end or assembly errors, it is difficult for the trachea axis to always remain consistent with the axis of the trachea channel. When they are inconsistent, the trachea cannot be smoothly withdrawn from the connector, which in turn causes the structure to get stuck (for example, the card box in the field of library preparation gets stuck). It can be seen that the trachea plug connector of the prior art is prone to getting stuck. At the same time, the existing trachea plug connector is also not convenient for pulling out the trachea. Summary of the invention

[0004] The invention provides a tracheal plug connector, a plunger cavity air pressure monitoring component and a library preparation system to solve the problem that the existing tracheal plug connector is prone to cause a card box to get stuck.

[0005] According to a first aspect of the present invention, there is provided a trachea plug connector, comprising: a seat structure and a connection structure;

[0006] The first end of the connection structure is provided with an air pipe passage for inserting the air pipe along the first direction, and the second end of the connection structure is provided with a rear end communication passage, and the air pipe passage and the rear end communication passage are communicated with each other;

[0007] The seat body structure is provided with a seat body channel, and the connecting structure is arranged through the seat body channel; the connecting structure at the target position can swing along with the inserted trachea.

[0008] The connection structure is movable relative to the seat structure between the target position and the non-target position;

[0009] After the trachea is matched and inserted into the tracheal passage, the connection structure is at the target position;

[0010] When the trachea is not inserted into the tracheal passage, the connection structure is in a non-target position;

[0011] The movement of the connection structure from the non-target position to the target position includes movement along the first direction.

[0012] Optionally, the trachea plug connector further includes an elastic component, wherein the elastic component is respectively connected to the seat structure and the connection structure, wherein the elastic component can provide an elastic force, and the elastic force is a force for driving the connection structure to move relative to the seat structure along the second direction;

[0013] The second direction is the opposite direction of the first direction. When the trachea is not matched and inserted into the tracheal passage, the elastic force acts on the connection structure, and the non-target position is the extreme position of the connection structure along the second direction;

[0014] After the trachea is inserted into the tracheal channel, the elastic force and the pushing force both act on the connection structure, and the connection structure is at the target position. The pushing force is the force of the trachea acting on the connection structure along the first direction.

[0015] Optionally, the inner wall of the seat body channel has a first annular docking surface, the outer wall of the connection structure has a second annular docking surface, at least one of the first annular docking surface and the second annular docking surface is a frustum, the diameter of the first end of the frustum is smaller than the diameter of the second end of the frustum, the first end of the frustum is the end of the frustum close to the trachea; the axis of the first annular docking surface is parallel to the first direction;

[0016] When the connection structure is in the extreme position along the second direction, the first annular docking surface is matched with the second annular docking surface, and only when they are matched, the axis center of the first annular docking surface coincides with the axis center of the second annular docking surface.

[0017] Optionally, the number of the second annular docking surfaces and the number of the first annular docking surfaces are both at least two, and at least two first annular docking surfaces correspond one-to-one to at least two second annular docking surfaces, and at least two second annular docking surfaces are distributed sequentially along the first direction.

[0018] Optionally, the seat structure includes a mounting seat, a front end cover and a rear end cover; the front end cover is mounted on a first side surface of the mounting seat, and the rear end cover is mounted on a second side surface of the mounting seat, the first side surface is a side surface facing a side of the trachea, and the second side surface is a side opposite to the first side surface; the first end of the elastic component is directly or indirectly fixedly connected to the front end cover;

[0019] The seat body channel comprises a channel body provided on the mounting seat and a front end cover channel provided on the front end cover, wherein a first annular docking surface is provided on the front end cover channel;

[0020] When the connection structure is at the extreme position along the first direction, the rear end cover blocks and docks with the second end of the connection structure.

[0021] Optionally, the trachea plug connector further comprises a snap-fit ​​structure having a snap-fit ​​portion; the snap-fit ​​portion can be switched between a first position and a second position; the connection structure can lock and release the trachea inserted into the trachea passage;

[0022] When the snapping portion is in the first position, the snapping portion snaps along the first direction and touches the snapping surface of the connection structure, wherein the connection structure can release the trachea inserted into the tracheal passage when the snapping surface is touched;

[0023] When the snap-fit ​​portion is at the second position, there is a gap between the snap-fit ​​portion and the snap-fit ​​surface along the first direction.

[0024] Optionally, the snap-fit ​​structure is a snap-fit ​​electromagnet, and the snap-fit ​​electromagnet is installed on the seat structure.

[0025] Optionally, the snap-fit ​​surface is a first end surface of the connection structure.

[0026] Optionally, the connecting structure includes a straight-through portion and a connecting shaft, the tracheal passage is arranged at the first end of the straight-through portion, the first end of the connecting shaft is connected to the second end of the straight-through portion, the rear end connecting passage is arranged on the connecting shaft, and the straight-through portion can lock and loosen the trachea inserted into the tracheal passage.

[0027] According to a second aspect of the present invention, there is provided an air pressure monitoring assembly for a plunger cavity, which is applied to a library preparation system, and comprises an air pressure monitoring instrument, and an tracheal plug connector involved in the first aspect and its optional scheme, wherein the tracheal plug connector is connected between the plunger cavity and the air pressure monitoring instrument through the rear end connecting channel and the trachea inserted into the tracheal channel.

[0028] According to a third aspect of the present invention, there is provided a library preparation system, comprising a plunger chamber and an air pressure monitoring assembly of the plunger chamber involved in the second aspect and its optional solutions.

[0029] The trachea plug-in connector, the air pressure monitoring component of the plunger cavity and the library preparation system provided by the present invention have the connection structure swinging relative to the seat structure. After the trachea is inserted, the connection structure still has the freedom to float. Furthermore, the connection structure can float within a certain range with the trachea and adapt to the position change of the trachea, thereby avoiding the card box from getting stuck and effectively ensuring the withdrawal of the card box.

[0030] In the optional scheme of the present invention, when the floating condition is met, since the floating occurs at the target position, the insertion of the trachea may not occur when the connecting structure is at the target position through the movement of the connecting structure in the first direction and the second direction, thereby avoiding the floating movement of the connecting structure affecting the insertion of the trachea. Furthermore, an elastic driving force in the second direction can be provided by the elastic component, and then, when the trachea is inserted, the position of the connecting structure can be stabilized by the elastic driving force, thereby ensuring the stable insertion of the trachea.

[0031] In a further optional scheme of the present invention, by introducing a docking surface, and the matching docking between the first annular docking surface and the second annular docking surface when the connecting structure is in the extreme position, the movement stroke of the connecting structure can be limited. At the same time, since at least one of the docking surfaces adopts a conical surface, and the axis centers of the annular docking surfaces coincide when the docking surfaces are matched, the axial movement of the connecting structure can bring about the positioning of the radial position, and further, the center position of the connecting structure can be uniquely determined, thereby facilitating the insertion of the trachea.

[0032] In an optional solution of the present invention, by introducing a snapping structure such as a snapping electromagnet, the snapping part can be used to snap and touch the snapping surface of the connection structure. Furthermore, when the snapping part snaps and touches the snapping surface, the connection structure can be triggered to release the trachea, thereby facilitating the rapid removal of the trachea. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0034] Figure 1 The structure of the trachea plug connector in one embodiment of the present invention is shown in FIG. Figure 1 ;

[0035] Figure 2 It is a schematic diagram of the structure when the connection structure is floating in one embodiment of the present invention;

[0036] Figure 3 The structure of the trachea plug connector in one embodiment of the present invention is shown in FIG. Figure 2 ;

[0037] Figure 4 The structure of the trachea plug connector before trachea insertion in one embodiment of the present invention is shown in FIG. Figure 1 ;

[0038] Figure 5 The structure of the trachea plug connector before trachea insertion in one embodiment of the present invention is shown in FIG. Figure 2 ;

[0039] Figure 6 The structure of the trachea plug connector after trachea insertion in one embodiment of the present invention is shown in FIG. Figure 1 ;

[0040] Figure 7 The structure of the trachea plug connector after trachea insertion in one embodiment of the present invention is shown in FIG. Figure 2 ;

[0041] Figure 8 The structure of the trachea plug connector when the trachea is pulled out in one embodiment of the present invention is shown in FIG. Figure 1 ;

[0042] Fig. 9 The structure of the trachea plug connector when the trachea is pulled out in one embodiment of the present invention is shown in FIG. Figure 2 .

[0043] Description of reference numerals:

[0044] 1-Connect the structure;

[0045] 11-tracheal passage;

[0046] 12- rear end communication channel;

[0047] 13-Through-through part;

[0048] 14- adapter shaft;

[0049] 15- second annular butt joint surface;

[0050] 2-seat structure;

[0051] 21-seat body passage;

[0052] 211-first annular butt joint surface;

[0053] 22-mounting seat;

[0054] 23-front end cover;

[0055] 24- rear end cover;

[0056] 3- elastic component;

[0057] 4- clapping structure;

[0058] 41-clapping part;

[0059] 5-Trachea. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0061] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0062] The technical solution of the present invention is described in detail with specific embodiments below. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0063] Figure 1 The structure of the trachea plug connector in one embodiment of the present invention is shown in FIG. Figure 1 . Figure 2 It is a schematic diagram of the structure when the connection structure is floating in one embodiment of the present invention.

[0064] Please refer to Figure 1 and Figure 2 The trachea plug connector comprises: a seat structure 2 and a connecting structure 1.

[0065] The connecting structure 1 can be understood as any structure that can realize the connection between the trachea and the air path of the rear-end related equipment. In the embodiment of the present invention, the first end of the connecting structure 1 is provided with a trachea channel 11 for inserting the air supply pipe 5 along the first direction, and the second end of the connecting structure 1 is provided with a rear-end connecting channel 12, and the trachea channel 11 is connected to the rear-end connecting channel 12.

[0066] The inner diameter of the tracheal passage 11 can match the outer diameter of the trachea 5. This matching can be understood as any method that can meet the insertion requirements of the trachea 5. Further, the inner diameter of the tracheal passage 11 can be the same as or slightly different from the outer diameter of the trachea 5. According to the air path sealing, tracheal material, etc., the inner diameter of the tracheal passage 11 can be arbitrarily configured to meet actual requirements.

[0067] The seat body structure 2 is provided with a seat body channel 21, the connection structure 1 is arranged through the seat body channel, and the connection structure can move relative to the seat body structure; furthermore, the seat body channel 21 can produce a certain limit and guide effect on the movement of the connection structure 1. It can be seen that the seat body structure 2 can be any structure having a seat body channel 21.

[0068] In the embodiment of the present invention, please refer to Figure 2 The connection structure 1 at the target position can swing along with the inserted trachea 5.

[0069] Among them, the overall movement of the trachea 5 and the connecting structure 1 can be regarded as a swinging motion or a rotational motion. As the movement mode, amplitude, angle, etc. of the trachea 5 changes, the amplitude, direction, etc. of the movement of each part of the connecting structure 1 will also change accordingly. As long as it can swing with the trachea 5, it does not depart from the scope of the embodiments of the present invention.

[0070] It can be seen that in the above scheme, through the swing of the connection structure relative to the seat structure, the connection structure still has the freedom of floating after the trachea is inserted. Furthermore, by floating the connection structure within a certain range with the trachea, it can adapt to the position change of the trachea, avoid the card box from getting stuck, and effectively ensure the withdrawal of the card box.

[0071] In one embodiment, in order to facilitate the insertion and / or removal of the trachea, the connection structure can move between the target position and the non-target position relative to the seat structure;

[0072] After the trachea 5 is matched and inserted into the tracheal passage 11, the connection structure 1 is located at the target position;

[0073] When the trachea 5 is not inserted into the tracheal passage 11, the connection structure 1 is in a non-target position;

[0074] The movement of the connection structure 1 from the non-target position to the target position includes movement along the first direction, and correspondingly, the movement of the connection structure 1 from the non-target position to the target position includes movement in the second direction. At the same time, when the target position and the non-target position move, in addition to the movement in the first direction and the second direction, movement perpendicular to the first direction and the second direction also occurs simultaneously.

[0075] The target position may be understood as any single or multiple positions suitable for swinging after insertion into the trachea. Correspondingly, the non-target position may be understood as any single or multiple positions different from the target position, such as the extreme position of the connection structure moving along the second direction.

[0076] In the above scheme, since the floating occurs at the target position, the insertion of the trachea may not occur when the connecting structure is at the target position through the movement of the connecting structure in the first direction and the second direction, thereby avoiding the floating movement of the connecting structure affecting the insertion of the trachea.

[0077] Figure 3 The structure of the trachea plug connector in one embodiment of the present invention is shown in FIG. Figure 2 .

[0078] Please refer to Figure 3 In one embodiment, the elastic component 3 connects the seat structure 2 and the connecting structure 1 respectively, wherein the elastic component 3 can provide an elastic force, and the elastic force is a force acting on the connecting structure 1 along a second direction; the second direction is the opposite of the first direction.

[0079] exist Figure 3 In the example shown, the elastic component 3 can be directly or indirectly connected to the first side of the seat structure 2 where the trachea is inserted, and the elastic force is generated by compressing the elastic component 3; in other examples, the elastic component 3 can also be directly or indirectly connected to the second side of the seat structure 2 opposite to the first side, and the elastic force can be generated by stretching the elastic component 3.

[0080] The elastic component 3 may be, for example, a return spring. In other examples, the elastic component 3 may also be a torsion spring or other components that can generate elastic force.

[0081] When the trachea 5 is not matched and inserted into the tracheal channel 1, the elastic force acts on the connection structure 1, and the non-target position is the extreme position of the connection structure along the second direction; the extreme position can be limited by the elastic component, or by the annular docking surface or other limiting structures mentioned later.

[0082] After the trachea 5 is matched and inserted into the tracheal passage 1 , both the elastic force and the pushing force act on the connection structure 1 .

[0083] The pushing force is the force applied by the trachea to the connection structure along the first direction, and may be applied to the end face of the tracheal passage away from the trachea, or a pushing portion may be arranged on the outside of the trachea to push the connection structure 1 and generate the pushing force.

[0084] In the above scheme, when floating is satisfied, the elastic component can provide an elastic driving force in the second direction, and then, when the trachea is inserted, the position of the connection structure can be stabilized by the elastic driving force to ensure stable insertion of the trachea.

[0085] Figure 4 The structure of the trachea plug connector before trachea insertion in one embodiment of the present invention is shown in FIG. Figure 1 ; Figure 5 The structure of the trachea plug connector before trachea insertion in one embodiment of the present invention is shown in FIG. Figure 2 ; Figure 6 The structure of the trachea plug connector after trachea insertion in one embodiment of the present invention is shown in FIG. Figure 1 ; Figure 7 The structure of the trachea plug connector after trachea insertion in one embodiment of the present invention is shown in FIG. Figure 2 ; Figure 8 The structure of the trachea plug connector when the trachea is pulled out in one embodiment of the present invention is shown in FIG. Figure 1 ; Fig. 9 The structure of the trachea plug connector when the trachea is pulled out in one embodiment of the present invention is shown in FIG. Figure 2 .

[0086] The movement of the connection structure 1 relative to the seat structure 2 may, for example, include movement components along the first direction and the second direction, and the connection structure 1 can move to an extreme position along the second direction under the drive of the elastic driving force. In addition, the movement of the connection structure 1 relative to the seat structure 2 is not limited to the first direction and the second direction, as long as the relative movement that can be achieved by the two has components in the first direction and the second direction, it does not depart from the scope of the embodiments of the present invention.

[0087] The limit position along the second direction can be understood as the farthest position of the connection structure 1 along the second direction, which can be limited by the structural form of the elastic component 3 itself, or can be realized by other structures that can be used for limiting. Figure 5 shown.

[0088] Please refer to Figures 2 to 7 The inner wall of the seat body channel 21 has a first annular docking surface 211, and the outer wall of the connection structure 1 has a second annular docking surface 15. In a specific example, the second annular docking surface 15 can be, for example, the outer surface of an annular protrusion protruding from the outer wall of the connection structure 1.

[0089] At least one of the first annular docking surface 211 and the second annular docking surface 15 is a frustum, the diameter of the first end of the frustum is smaller than the second end of the frustum, the first end of the frustum is the end of the frustum close to the trachea; the axis of the first annular docking surface is parallel to the first direction.

[0090] exist Figure 5 and Figure 7In the example shown, the first annular docking surface 211 and the second annular docking surface 15 can both be frustum surfaces, and the side inclination angles of the two frustum surfaces that are docked are the same, and further, the side inclination angles of each frustum surface are the same. In other examples, only part or all of the first annular docking surface 211 can be configured as a frustum surface, or only part or all of the second annular docking surface 15 can be configured as a frustum surface.

[0091] When the connection structure 1 is in the extreme position, it can be Figure 5 As shown, the first annular docking surface 211 is matched and docked with the second annular docking surface 15, and the axis of the first annular docking surface 211 coincides with the axis of the second annular docking surface 15. The matching docking can be understood as docking at all circumferential positions.

[0092] When the connection structure 1 is not in the extreme position, the first annular docking surface 211 and the second annular docking surface 15 may be partially in contact or completely separated. At this time, the axes of the first annular docking surface 211 and the second annular docking surface 15 do not coincide with each other, for example, they may be parallel but not coincident, or they may be non-parallel. Figure 7 As shown, the connection structure 1 can be supported on the seat body channel 21, and the upper side of the connection structure 1 can form a gap with the seat body channel 21 and the first annular docking surface 211 thereof.

[0093] It can be seen that when the connecting structure 1 moves to the extreme position along the second direction relative to the seat structure 2, the first annular docking surface 211 matches and docks with the second annular docking surface 15, and only when matching and docking, the axis center of the first annular docking surface coincides with the axis center of the second annular docking surface.

[0094] In the above scheme, by introducing the docking surface and the matching docking between the first annular docking surface and the second annular docking surface when the connecting structure is in the extreme position, the movement stroke of the connecting structure can be limited. At the same time, since at least one of the docking surfaces adopts a conical surface and the axis centers of the annular docking surfaces coincide when the docking surfaces are matched, the axial movement of the connecting structure can bring about the positioning of the radial position, and then, the center position of the connecting structure can be uniquely determined, thereby facilitating the insertion of the trachea.

[0095] In one embodiment, the number of the second annular docking surfaces 15 and the number of the first annular docking surfaces 211 are both at least two, and at least two first annular docking surfaces 211 correspond one-to-one to at least two second annular docking surfaces 15, and at least two second annular docking surfaces 211 are distributed sequentially along the first direction, and correspondingly, at least two first annular docking surfaces 15 are also distributed sequentially along the first direction.

[0096] exist Figure 5 and Figure 7 In the example shown, one of the second annular docking surfaces 15 may be disposed at the second end of the connection structure 1 . At this time, it may move in the second direction to separate from the seat passage 21 . Therefore, its maximum radial dimension may not be limited by the seat passage 21 .

[0097] exist Figure 5 and Figure 7 In the example shown, the number of the second annular docking surfaces 15 and the number of the first annular docking surfaces 211 are both two. In addition to the second annular docking surface 15 provided at the second end of the connection structure 1, another second annular docking surface 15 may be provided at a position other than the second end (e.g., may be provided at a position close to the midpoint of the adapter shaft 14).

[0098] If the first annular butt joint surface 211 and the second annular butt joint surface 15 are both frustum surfaces, and the radial dimensions of the tube walls other than the first annular butt joint surface 211 in the inner wall of the seat body channel 21 are understood as the channel radial dimensions, then:

[0099] The maximum radial dimension of the second annular docking surface 15 arranged at the second end of the connecting structure 1 is larger than the radial dimension of the channel; the maximum radial dimension of the second annular docking surface 15 arranged at the non-second end (or can be understood as the second annular docking surface 15 located in the seat body channel 21) is smaller than the radial dimension of the channel.

[0100] In one implementation, please refer to Figure 3 and Figure 5 The seat structure 2 includes a mounting seat 22, a front end cover 23 and a rear end cover 24; the front end cover 23 is installed on the first side of the mounting seat 22, and the rear end cover 24 is installed on the second side of the mounting seat 22, the first side is the side facing the trachea, and the second side is the side opposite to the first side; if an elastic component 3 is configured, the first end of the elastic component 3 is directly or indirectly fixedly connected to the front end cover 23.

[0101] The seat body channel 21 includes a channel body provided on the mounting seat and a front end cover channel provided on the front end cover, wherein a first annular docking surface 211 is provided on the front end cover channel; Figure 3 and Figure 5 In the example shown, the inner wall of the front end cover channel can form a complete first annular docking surface 211. In other examples, the front end cover channel and the channel body can be combined to form the first annular docking surface 211, and the inner wall of the front end cover channel can also be configured to be only partially the first annular docking surface 211.

[0102] When the connection structure 1 moves to the limit position along the first direction, the rear end cover 24 blocks the connection structure 1 from docking with the second end. It can be seen that the movement of the connection structure 1 along the first direction and the second direction can be limited between the two limit positions by the rear end cover 24 and the docking surface.

[0103] The connection structure can be configured to lock and release the trachea inserted into the tracheal passage; this can be achieved through the structural design of the components and / or the selection and application of existing components.

[0104] In one implementation, please refer to Figures 4 to 9 The connecting structure 1 includes a straight-through portion 13 and a transfer shaft 14, the tracheal passage 11 is arranged at a first end of the straight-through portion 13, the first end of the transfer shaft 14 is connected to the second end of the straight-through portion 13, and the rear end connecting passage 12 is arranged at the transfer shaft 14. If an elastic component 3 is provided, the second end of the elastic component 3 is directly or indirectly fixedly connected to the transfer shaft 14, and the straight-through portion 13 can lock and release the trachea inserted into the tracheal passage.

[0105] The through portion 13 can be connected to the adapter shaft 14 through an external thread, so as to achieve a fixed connection between the through portion 13 and the adapter shaft 14. Therefore, the through portion 13 can also be understood as a threaded through portion.

[0106] Specifically, the threaded straight-through portion can be a quick-connect threaded straight-through connector, which can lock the inserted air pipe through a corresponding locking structure (such as a clamping ring). In one example, the first end of the threaded straight-through connector can have a clamping ring, and after the air pipe is finally inserted, it can be locked by the clamping ring. At the same time, when the clamping ring is touched, the locked air pipe can be loosened.

[0107] In other examples, the connection between the through portion 13 and the adapter shaft 14 may also be achieved in other ways (for example, by means of a latch, an external thread, a radial thread, etc.).

[0108] Specifically, the through portion 13 is further provided with an intermediate channel, one end of the intermediate channel is connected to the tracheal channel 11, and the other end is connected to the rear end communication channel 12, so as to achieve communication between the tracheal channel 11 and the rear end communication channel 12. The inner diameter of the intermediate channel may be smaller than that of the tracheal channel 11, so that the trachea can generate a corresponding pushing force by pushing the end surface of the tracheal channel 11.

[0109] In addition, the embodiment of the present invention does not exclude the straight-through portion 13 and the transfer shaft 14 being integrally formed.

[0110] In one implementation, please refer to Figures 2 to 7The trachea plug connector also includes a snap-fit ​​structure 4 having a snap-fit ​​portion 41; the snap-fit ​​portion 41 can be switched between a first position and a second position.

[0111] The first position can be understood as: when the snapping portion 41 is in the first position, the snapping portion snaps along the first direction and touches the snapping surface of the connection structure 1; wherein the connection structure 1 (such as its straight portion 13) can release the trachea inserted into the tracheal passage when the snapping surface is touched. In a further solution, when the snapping portion 41 is in the first position, the connection structure 1 is correspondingly in the target position, at which time, the axis of the first annular docking surface 211 and the second annular docking surface 15 may not overlap.

[0112] The second position can be understood as: when the snapping portion 41 is in the second position, there is a gap between the snapping portion 41 and the snapping surface along the first direction, and thus, the connection structure 1 will not be blocked from moving along the second direction. In a specific example, when the snapping portion 41 is in the second position, if the connection structure is in the target position, the snapping portion 41 can still have a gap with the snapping surface along the first direction.

[0113] exist Figures 4 to 9 In the scheme shown, the snap-fit ​​surface may be the first end surface of the connection structure 1, specifically the end surface of the clamping ring in the threaded straight-through joint as the straight-through portion 13 in the connection structure 1, and the clamping ring may be triggered to release the air pipe. In other schemes, the snap-fit ​​surface may be the surface of the snap-fitting portion disposed on the outside of the connection structure 1, which faces the air pipe. As long as it can release the air pipe, it does not depart from the scope of the embodiments of the present invention.

[0114] In a specific example, the snap-fit ​​structure 4 may be a snap-fit ​​electromagnet, and the snap-fit ​​electromagnet is installed on the seat structure 2. The movement of the snap-fit ​​portion 41 may be triggered by electromagnetic action.

[0115] In the above scheme, by introducing a snapping structure such as a snapping electromagnet, the snapping part can be used to snap and touch the snapping surface of the connection structure. Furthermore, when the snapping part snaps and touches the snapping surface, the connection structure can be triggered to release the trachea, thereby facilitating the rapid removal of the trachea.

[0116] by Figures 4 to 9 Taking the structure shown in FIG. 1 as an example, the process of inserting and removing the trachea is described below.

[0117] Please refer to Figure 4 and Figure 5When the trachea 5 is not inserted, the snapping portion 41 is in the second position, and the connection structure 1 moves to the extreme position under the driving force of the elastic component 3 and the action of the annular docking surface. At this time, the elastic component 3 (such as a return spring) is in a natural state. Due to the action of the frustum in the annular docking surface, the center position of the connection structure is uniquely determined, which can facilitate the insertion of the trachea.

[0118] Please refer to Figure 6 and Figure 7 After the trachea 5 is inserted, the trachea 5 is filled into the tracheal passage 11, and the inner cavity of the trachea 5 can be connected to the rear end communication passage, and then connected to other devices through the rear end communication passage.

[0119] Please refer to Figure 8 and Fig. 9 When the trachea 5 needs to be pulled out, the snapping portion 41 can be controlled to reach the first position, and the snapping portion 41 can block the first end of the connecting structure 1. At this time, when the trachea 5 is pulled out, the connecting structure 1 will not move due to the friction between the trachea and the connecting structure 1. Therefore, under this structure, the trachea 5 can be easily pulled out.

[0120] It can be seen that in the above insertion and removal process:

[0121] The following positive effects can be achieved through the cooperation of the adapter shaft with the front end cover and the round table surface on the mounting seat, as well as the action of elastic components (such as return springs):

[0122] 1) When the elastic component is in a natural state, the central position of the connection structure 1 is determined and unique, which is convenient for tracheal insertion;

[0123] 2) After the trachea is inserted, the connection structure 1 can float within a certain range to adapt to the position of the trachea. This effect is particularly important when the trachea is made of hard material. When applied to the air path connection between the air pressure monitoring instrument and the plunger cavity of the card box, it can effectively prevent the card box from getting stuck and unable to be ejected due to the trachea getting stuck.

[0124] In addition, the solution involved in the embodiment of the present invention can be applied to the scenario where the air pipe is made of hard material, but it does not exclude the application scenario where the air pipe is a soft pipe.

[0125] In an embodiment of the present invention, there is also provided an air pressure monitoring component for a plunger cavity, which is applied to a library preparation system, and includes an air pressure monitoring instrument and an tracheal plug-in connector involved in the above optional scheme, wherein the tracheal plug-in connector is connected between the plunger cavity and the air pressure monitoring instrument through the rear end connecting channel and the trachea inserted into the tracheal channel.

[0126] In the existing related technologies, in the library preparation system, the existing card box pipetting mainly relies on the reciprocating motion of the plunger in the plunger cavity to achieve the suction action of the liquid. Due to the draft angle of the piston cavity and the influence of factors such as the material and size of the sealing ring on the sealing effect, there is a gas leakage problem between the plunger and the plunger cavity, which seriously affects the pipetting accuracy.

[0127] In order to improve the accuracy of pipetting, the embodiment of the present invention has conceived of monitoring the air pressure in the plunger cavity in real time. In view of this demand, the air pipe plug connector provided by the embodiment of the present invention can be introduced to achieve quick plugging and unplugging, so as to establish an air circuit connection between the instrument and the plunger cavity in the cartridge, and this air circuit connection can be quickly established and disconnected.

[0128] The cartridge may specifically refer to a closed sequencing library preparation cartridge, which can be used to provide a closed environment and realize the aspiration, addition and pipetting of reaction reagents and samples in the closed environment. The plunger cavity involved above is the structure required for use in the pipetting process.

[0129] In a specific example, the trachea plug connector can be connected to the plunger cavity through the inserted trachea, and at this time, the rear end communication channel can be connected to the air pressure monitoring instrument.

[0130] An embodiment of the present invention further provides a library preparation system, including a plunger cavity and an air pressure monitoring component of the plunger cavity involved in the above optional solution.

[0131] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A trachea plug connector, characterized in that: include: Seat structure and connection structure; The first end of the connection structure is provided with an air pipe passage for inserting the air pipe along the first direction, and the second end of the connection structure is provided with a rear end communication passage, and the air pipe passage and the rear end communication passage are communicated with each other; The seat body structure is provided with a seat body channel, and the connecting structure is arranged through the seat body channel; the connecting structure at the target position can swing along with the inserted trachea, and the target position is used to represent any single or multiple positions suitable for swinging after being inserted into the trachea; It also includes an elastic component, the elastic component is respectively connected to the base structure and the connection structure, wherein the elastic component can provide an elastic force, and the elastic force is a force for driving the connection structure to move relative to the base structure along a second direction; the second direction is the opposite direction of the first direction; The inner wall of the seat body channel has a first annular docking surface, and the outer wall of the connecting structure has a second annular docking surface. At least one of the first annular docking surface and the second annular docking surface is a frustum surface. The diameter of the first end of the frustum surface is smaller than the diameter of the second end of the frustum surface. The first end of the frustum surface is the end of the frustum surface close to the trachea. The axis of the first annular docking surface is parallel to the first direction. When the connection structure is at the extreme position along the second direction, the first annular docking surface and the second annular docking surface are matched and docked, and only when they are matched and docked, the axis of the first annular docking surface coincides with the axis of the second annular docking surface, and the second direction is the opposite direction of the first direction; It also includes a snap-fit ​​structure having a snap-fit ​​portion; the snap-fit ​​portion can be switched between a first position and a second position; the connection structure can lock and release the trachea inserted into the tracheal passage; When the snapping portion is in the first position, the snapping portion snaps along the first direction and touches the snapping surface of the connection structure, wherein the connection structure can release the trachea inserted into the tracheal passage when the snapping surface is touched; When the snap-fit ​​portion is at the second position, there is a gap between the snap-fit ​​portion and the snap-fit ​​surface along the first direction.

2. The trachea plug connector according to claim 1, characterized in that: The connection structure is movable relative to the seat structure between the target position and the non-target position; After the trachea is matched and inserted into the tracheal passage, the connection structure is at the target position; When the trachea is not inserted into the tracheal passage, the connection structure is in a non-target position; The movement of the connection structure from the non-target position to the target position includes movement along the first direction.

3. The tracheal plug connector according to claim 2, characterized in that: When the trachea is not inserted into the tracheal passage, the elastic force acts on the connection structure, and the non-target position is the limit position of the connection structure along the second direction; After the trachea is matched and inserted into the tracheal passage, the elastic force and the pushing force both act on the connection structure, and the pushing force is the force of the trachea acting on the connection structure along the first direction.

4. The tracheal plug connector according to claim 1, characterized in that: The number of the second annular butt joint surfaces and the number of the first annular butt joint surfaces are both at least two, and the at least two first annular butt joint surfaces correspond one-to-one to the at least two second annular butt joint surfaces, and the at least two second annular butt joint surfaces are distributed sequentially along the first direction.

5. The tracheal plug connector according to claim 1, characterized in that: The seat structure includes a mounting seat, a front end cover and a rear end cover; the front end cover is mounted on a first side surface of the mounting seat, and the rear end cover is mounted on a second side surface of the mounting seat, the first side surface is a side surface facing the trachea, and the second side surface is a side opposite to the first side surface; The seat body channel comprises a channel body provided on the mounting seat and a front end cover channel provided on the front end cover, wherein a first annular docking surface is provided on the front end cover channel; When the connection structure is at the extreme position along the first direction, the rear end cover blocks and docks with the second end of the connection structure.

6. The tracheal plug connector according to claim 1, characterized in that: The snap-fit ​​structure is a snap-fit ​​electromagnet, and the snap-fit ​​electromagnet is installed on the seat structure.

7. The tracheal plug connector according to claim 6, characterized in that: The snap-fit ​​surface is the first end surface of the connection structure.

8. The trachea plug connector according to any one of claims 1 to 5, characterized in that: The connecting structure includes a straight-through portion and a connecting shaft, the trachea passage is arranged at the first end of the straight-through portion, the first end of the connecting shaft is connected to the second end of the straight-through portion, the rear end connecting passage is arranged at the connecting shaft, and the straight-through portion can lock and loosen the trachea inserted into the trachea passage.

9. A plunger chamber air pressure monitoring component, applied to a library preparation system, characterized in that: It comprises an air pressure monitoring instrument and the trachea plug connector according to any one of claims 1 to 8, wherein the trachea plug connector is connected between the plunger cavity and the air pressure monitoring instrument through the rear end connecting passage and the trachea inserted into the trachea passage.

10. A library preparation system, characterized in that: An air pressure monitoring assembly comprising a plunger cavity and the plunger cavity as claimed in claim 9.

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