Bag opening and closing structure

Abstract

The present application relates to a kind of bag mouth switch structure, including first fixed part, first movable part, first magnetic component, second fixed part, second movable part and second magnetic component, first fixed part is connected to bag mouth connector, first movable part is movably connected to first fixed part, first magnetic component is set to first movable part;Second fixed part is connected to pipeline, second movable part is movably connected to second fixed part, second magnetic component is set to second movable part.Bag mouth switch structure exists opening and closing two kinds of state, in opening state, two groups of magnetic components repel, so that first movable part relatively far away bag mouth switch, to allow liquid to pass through;In the closed state, two groups of magnetic components attract, so that first movable part relatively close to bag mouth connector, to hinder liquid to pass through.The present application controls the in and out of liquid in bag by the switch of magnetic attraction component, can avoid the dead zone of liquid flow, avoid cell flow into dead zone and die.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bag opening switch structure, in particular to a bag opening switch structure. BACKGROUND

[0002] The bag opening is an important accessory connecting the bag body and the pipeline, and the bag opening welded on the bag body can be used as the inlet and outlet of the bag. The commonly used bag opening is composed of a welding disc welded on the bag body and a pagoda head connected with the pipeline. In the traditional technology, a Robert clamp is generally used as the bag opening switch structure. However, when the Robert clamp opens and closes the bag opening, there will be a dead zone in the pipeline, and the culture solution will flow into the dead zone during the stirring process, causing cell death. SUMMARY

[0003] Therefore, it is necessary to provide a bag opening switch structure.

[0004] A bag opening switch structure, comprising a first fixed part, a first movable part, a first magnetic assembly, a second fixed part, a second movable part and a second magnetic assembly, the first fixed part is connected to a bag opening joint, the first movable part is movably connected to the first fixed part, and the first magnetic assembly is arranged on the first movable part; the second fixed part is connected to a pipeline, the second movable part is movably connected to the second fixed part, and the second magnetic assembly is arranged on the second movable part.

[0005] Among them, at least one of the first magnetic assembly and the second magnetic assembly comprises at least two magnetic parts with opposite magnetic poles, and the second movable part can rotate under the action of an external force to switch the bag opening switch structure between an open state and a closed state.

[0006] In the open state, the second magnetic assembly repels the first magnetic assembly, so that the first movable part relatively moves away from the bag opening joint to allow the liquid to pass through; in the closed state, the second magnetic assembly attracts the first magnetic assembly, so that the first movable part relatively moves close to the bag opening joint to hinder the liquid to pass through.

[0007] In this way, the bag opening controls the disengagement of the first movable part and the bag opening joint through the attraction and repulsion between the first magnetic assembly and the second magnetic assembly, so as to control the inlet and outlet of the liquid in the bag. The shape of the bag body itself and the shape of the pipeline have no influence on the use of the bag opening switch structure, so that there is no dead zone in the use process, avoiding the death of cells flowing into the dead zone.

[0008] In one embodiment, the second movable part can rotate radially and slide axially relative to the second fixed part.

[0009] In this way, the second movable element can rotate to change the direction of the second magnetic assembly, thereby driving the second movable element to move towards or away from the first movable element, and achieving the opening and closing of the bag opening.

[0010] In one of the embodiments, one of the second fixed element and the second movable element is provided with a sliding groove, and the other is provided with a protruding block which can slide in the sliding groove.

[0011] In this way, the relative movement between the second fixed element and the second movable element according to the track of the sliding groove can effectively prevent the two from being separated from each other, and in addition, the track of the sliding groove includes the gear position of the opening and closing of the bag opening switch structure, which is used to guide the opening and closing of the bag opening switch structure, and is beneficial to simplify the use.

[0012] In one of the embodiments, the second movable element includes a second base body and a movable rib, the movable rib is movably connected to the second base body and extends along the axial direction of the second base body, one end of the movable rib is provided with a clamping block inwardly protruding, the clamping block is used to clamp one end of the second fixed element which is relatively close to the first movable element, and the other end of the movable rib is provided with a pressing block outwardly protruding, when the pressing block is pressed by an external force, the clamping block can be separated from the end of the second fixed element.

[0013] In this way, the movable rib is used as a fulcrum, and the clamping block can be separated from the second fixed element by applying pressure to the pressing block, and the lever principle is used to reduce the force required for pressing, and the structure is simple and practical.

[0014] In one of the embodiments, the bag opening switch structure further includes a gasket, the gasket is arranged on the side of the second movable element which is relatively close to the first movable element, and a clearance groove is formed in the gasket, the clearance groove is used to give way to the movable rib.

[0015] In this way, when the pressing block fails, the separation of the clamping block and the second movable element can still be achieved by manually prying the clamping block, and the practicality of the bag opening switch structure is improved by setting the clearance groove as a safety structure.

[0016] In one of the embodiments, a plurality of sliding grooves are formed in the first fixed element, and a stop block is provided on one end of the first movable element which is relatively close to the second fixed element, the stop block can slide in the sliding groove, and the stop block can abut against the inner wall of the sliding groove when moving to the limit position in the open state.

[0017] In this way, the first movable part can axially slide in the first fixed part, the stopper helps to prevent the first movable part from coming out of the first fixed part during sliding, and when the first movable part is installed, the first movable part is movably inserted into the first fixed part, and the stopper is inserted into the sliding groove to fix the relative rotation angle between the first movable part and the first fixed part, so that the structure is simple, and the first movable part can be assembled in the bag body, and the installation is flexible.

[0018] In one of the embodiments, the first fixed part is provided with a mounting block at one end close to the second fixed part, the mounting block can abut against one end of the bag opening connector away from the first movable part, the sliding groove penetrates through the bottom of the first fixed part, and the mounting block has radial elasticity.

[0019] In this way, when the mounting block reaches one end of the bag opening connector away from the first movable part, the mounting block automatically rebounds to hook the first movable part, so that the first fixed part is fixedly connected with the bag opening connector, the structure is simple, and the assembly is convenient.

[0020] In one of the embodiments, the bag opening switch structure further comprises a clamping part, the clamping part is used for sleeving the pipeline, the second fixed part is sleeved on the clamping part, and the clamping part is used for clamping the pipeline to the bag opening connector.

[0021] In this way, when the second fixed part is sleeved on the clamping part, one end of the clamping part is contracted to clamp the pipeline to the bag opening connector, so that the pipeline is prevented from coming out of the bag opening connector.

[0022] In one of the embodiments, the clamping part is provided with at least one deformation groove in the axial direction, and the deformation groove is used for radial deformation of the clamping part.

[0023] In this way, the deformation groove divides the clamping part into a plurality of similar pieces, the elasticity of the clamping part is increased, the clamping part can uniformly press the pipeline, and the clamping part, the pipeline and the bag opening connector are fully attached and not easy to loosen.

[0024] In one of the embodiments, the clamping part is a hollow circular truncated cone, and the diameter of one end of the clamping part close to the first movable part is greater than the diameter of one end of the clamping part away from the first movable part.

[0025] In this way, the clamping part is convenient to sleeve the pipeline, when the second movable part is installed, the clamping part is extruded by the second movable part, the diameter of one end of the clamping part close to the first movable part is contracted more, and the clamping part is beneficial to clamp the pipeline.

[0026] A biological reaction device comprises a biological reaction bag and a bag opening switch structure as described above, the biological reaction bag comprises a bag opening connector, and the bag opening switch structure is arranged at the bag opening connector. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 Structure diagram of the bag opening switch structure in an embodiment of the present application;

[0028] Figure 2 Structure diagram of the bag opening switch structure in an embodiment of the present application; Figure 1 Structure diagram of the bag opening switch structure in an embodiment of the present application;

[0029] Figure 3 Structure diagram of the bag opening switch structure in an embodiment of the present application; Figure 1 Structure diagram of the bag opening switch structure in an embodiment of the present application;

[0030] Figure 4 Structure diagram of the bag opening switch structure in an embodiment of the present application; Figure 3 Structure diagram of the bag opening switch structure in an embodiment of the present application;

[0031] Figure 5 Structure diagram of the bag opening switch structure in an embodiment of the present application; Figure 1 Structure diagram of the bag opening switch structure in an embodiment of the present application;

[0032] Figure 6 Structure diagram of the bag opening switch structure in an embodiment of the present application; Figure 5 Structure diagram of the bag opening switch structure in an embodiment of the present application;

[0033] Figure 7 Structure diagram of the bag opening switch structure in an embodiment of the present application;

[0034] Figure 8 Structure diagram of the bag opening switch structure in an embodiment of the present application; Figure 2 Structure diagram of the bag opening switch structure in an embodiment of the present application;

[0035] Figure 9 Structure diagram of the bag opening switch structure in an embodiment of the present application; Figure 8 Structure diagram of the bag opening switch structure in an embodiment of the present application;

[0036] Figure 10 Structure diagram of the bag opening switch structure in an embodiment of the present application; Figure 2 Structure diagram of the bag opening switch structure in an embodiment of the present application;

[0037] Figure 11 Structure diagram of the bag opening switch structure in an embodiment of the present application; Figure 2 Structure diagram of the bag opening switch structure in an embodiment of the present application;

[0038] Figure 12 Structure diagram of the bag opening switch structure in an embodiment of the present application; Figure 2 Structure diagram of the bag opening switch structure in an embodiment of the present application;

[0039] Figure 13 Structure diagram of the bag opening switch structure in an embodiment of the present application;

[0040] Figure 14 Structure diagram of the bag opening switch structure in an embodiment of the present application;

[0041] Figure 15 Structure diagram of the bag opening switch structure in an embodiment of the present application; Figure 2 Structure diagram of the bag opening switch structure in an embodiment of the present application;

[0042] Reference signs:

[0043] 100, bag opening switch structure; 10, first fixed part; 11, sliding groove; 12, mounting block; 20, first movable part; 21, first mounting groove; 22, stop block; 23, rubber ring; 30, first magnetic assembly; 40, second fixed part; 41, protrusion; 42, limiting step; 50, second movable part; 51, second mounting groove; 52, sliding way; 521, vertical groove; 522, horizontal groove; 53, movable rib; 531, clamping block; 532, pressing block; 60, second magnetic assembly; 70, gasket; 71, accommodating groove; 80, clamping part; 81, deformation groove; 82, step part; 83, limiting protrusion; 84, limiting groove; 90, cover plate; 200, bag opening connector; 201, pagoda head; 202, anti-skid protrusion; 300, pipeline. DETAILED DESCRIPTION

[0044] In order to make the above objectives, characteristics and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different manners, which are different from those described herein, and it can be apparent to those skilled in the art that similar modifications of the present application can be made without departing from the scope of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0045] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0046] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0047] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connected", "connection", "fixed", and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless specifically defined otherwise. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact or indirectly contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0049] It should be noted that when an element is referred to as "fixed to" or "provided on" another element, it can be directly on the other element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only implementation.

[0050] The bag port is an important accessory connecting the bag body and the pipeline, and the bag port welded on the bag body can be used as the inlet and outlet of the bag. The commonly used bag port is composed of a welding disc welded on the bag body and a pagoda head connected with the pipeline. In the traditional technology, a Robert clamp is generally used as the bag port opening and closing structure. However, when the Robert clamp opens and closes the bag port, there will inevitably be a dead zone in the pipeline. During the stirring process, the culture solution will flow into the dead zone, causing cell death.

[0051] Therefore, it is necessary to provide a bag port opening and closing structure 100.

[0052] Please refer to Figures 1 to 7 , Figure 1 The structure schematic diagram of the bag port opening and closing structure 100 in an embodiment of the present application is shown, Figure 2 as Figure 1 The explosion structure schematic diagram of the bag port opening and closing structure 100 is shown, Figure 3 as Figure 1 The structure schematic diagram of the bag port opening and closing structure 100 in an open state is shown,Figure 4 Fig. 1 is a schematic view of a bag opening switch structure 100 in a closed state, Figure 3 Fig. 2 is a sectional view along A-A in Fig. 1, Figure 5 Fig. 3 is a schematic view of a bag opening switch structure 100 in an open state, Figure 1 Fig. 4 is a schematic view of a bag opening switch structure 100 in a closed state, Figure 6 Fig. 5 is a sectional view along B-B in Fig. 4, Figure 5 Fig. 6 is a sectional view along B-B in Fig. 3, Figure 7 Fig. 7 is a schematic view of a bag opening joint 200.

[0053] A bag opening switch structure 100 comprises a first fixed part 10, a first movable part 20, a first magnetic assembly 30, a second fixed part 40, a second movable part 50 and a second magnetic assembly 60. The first fixed part 10 is connected to a bag opening joint 200. The first movable part 20 is movably connected to the first fixed part 10. The first magnetic assembly 30 is arranged on the first movable part 20. The second fixed part 40 is connected to a pipeline 300. The second movable part 50 is movably connected to the second fixed part 40. The second magnetic assembly 60 is arranged on the second movable part 50.

[0054] At least one of the first magnetic assembly 30 and the second magnetic assembly 60 comprises at least two magnetic parts with opposite magnetic poles. The second movable part 50 is capable of rotating under the action of an external force to switch the bag opening switch structure 100 between an open state and a closed state.

[0055] In the open state, the second magnetic assembly 60 repels the first magnetic assembly 30, so that the first movable part 20 is relatively far away from the bag opening joint 200 to allow liquid to pass through. In the closed state, the second magnetic assembly 60 attracts the first magnetic assembly 30, so that the first movable part 20 is relatively close to the bag opening joint 200 to hinder the liquid from passing through.

[0056] In this way, the bag opening is controlled by the attraction and repulsion between the first magnetic assembly 30 and the second magnetic assembly 60 to control the disengagement of the first movable part 20 and the bag opening joint 200, so as to control the inflow and outflow of the liquid in the bag. During use, the shape of the bag body itself is not affected, so that the bag opening switch structure 100 can avoid the dead zone of liquid flow during use, and avoid the death of cells flowing into the dead zone.

[0057] The bag opening joint 200 is welded to the bag body. The bag opening joint 200 is provided with a tower head 201 and an anti-skid protrusion 202. The pipeline 300 is sleeved and fixed on the tower head 201. The anti-skid protrusion 202 abuts against the inner wall of the pipeline 300. The liquid in the pipeline 300 can enter the bag body through the bag opening joint 200.

[0058] In one of the embodiments, in the open state, the annular welding disc of the bag opening connector 200 is spaced apart from the first movable member 20 to allow liquid to pass through; in the closed state, the annular welding disc of the bag opening connector 200 is in close contact with the first movable member 20 to hinder liquid from passing through.

[0059] It can be understood that in other embodiments, the first fixed member 10 can also be circumferentially provided with an annular disc, in the open state, the annular disc on the first fixed member 10 is spaced apart from the first movable member 20 to allow liquid to pass through; in the closed state, the annular disc on the first fixed member 10 is in close contact with the first movable member 20 to hinder liquid from passing through.

[0060] Optionally, the first magnetic assembly 30 includes four first magnetic members 31, adjacent two first magnetic members 31 have opposite magnetic poles, and the four first magnetic members 31 are circumferentially and evenly distributed around the rotation center of the first movable member 20; the second magnetic assembly 60 also includes four second magnetic members 61, adjacent two second magnetic members 61 have opposite magnetic poles, and the four second magnetic members 61 are circumferentially and evenly distributed around the rotation center of the first movable member 20, and the positions of the four second magnetic members 61 match the positions of the four first magnetic members 31. When the bag opening switch structure 100 is in the open state, the corresponding first magnetic member 31 and the second magnetic member 61 are the same in the magnetic pole direction, so that the first magnetic assembly 30 and the second magnetic assembly 60 repel each other, and when the bag opening switch structure 100 is switched to the closed state, the corresponding second magnetic member 61 and the first magnetic member 31 are opposite in the magnetic pole direction, so that the first magnetic assembly 30 and the second magnetic assembly 60 attract each other.

[0061] It can be understood that in other embodiments, the first magnetic member 31 or the second magnetic member 61 can also be other numbers, such as two pieces, six pieces, or eight pieces, etc. Of course, it can also be three pieces, five pieces, etc.

[0062] It can be understood that in other embodiments, the first magnetic assembly 30 and / or the second magnetic assembly 60 can not only include magnetic members, but also include magnetic sensing members, as long as the function of magnetic opening and closing can be realized.

[0063] It needs to be specially pointed out that the magnetic sensing member in the present application refers to a material that can be magnetically attracted, such as iron, cobalt-containing, nickel-containing or other alloys that can be magnetically attracted, etc.

[0064] Optionally, the first movable member 20 is provided with a first mounting groove 21, and the first magnetic assembly 30 is accommodated and fixed in the first mounting groove 21.

[0065] It can be understood that in other embodiments, the first magnetic assembly 30 can also be protruded on the surface of the first movable member 20, as long as the first movable member 20 can drive the first magnetic assembly 30 to move.

[0066] Optionally, the first movable piece 20 is further provided with a cover plate 90, which is fixedly connected to the first movable piece 20 and used for closing the first mounting groove 21.

[0067] In this way, the first magnetic piece 31 is closed in the first mounting groove 21, so that the first magnetic piece 31 is prevented from being exposed to the solution and corroded by the solution.

[0068] Optionally, the second movable piece 50 is provided with a second mounting groove 51, and the second magnetic assembly 60 is accommodated and fixed in the second mounting groove 51.

[0069] Optionally, in an embodiment of the present application, the second movable piece 50 can rotate radially and slide axially relative to the second fixed piece 40.

[0070] In this way, the second movable piece 50 can rotate to change the magnetic direction of the second magnetic assembly 60, so as to drive the second movable piece 50 to move close to or away from the first movable piece 20, thereby realizing the opening and closing of the bag opening.

[0071] It can be understood that, in other embodiments, the second movable piece 50 can only rotate radially relative to the second fixed piece 40, and at this time, the opening and closing of the bag opening switch structure 100 is realized by moving the first movable piece 20 away from or close to the second movable piece 50.

[0072] Please refer to Figures 8 to 10 , Figure 8 for the structural schematic view of the second movable piece 50, Figure 2 for the structural schematic view of the second movable piece 50 from another perspective, Figure 9 for the structural schematic view of the second fixed piece 40. Figure 8 Figure 10 Figure 2

[0073] Optionally, in an embodiment of the present application, one of the second movable pieces 50 is provided with a sliding groove 52, and the second fixed piece 40 is provided with a protruding block 41, which can slide in the sliding groove 52.

[0074] In this way, the second fixed piece 40 and the second movable piece 50 move relative to each other according to the track of the sliding groove 52, which can effectively prevent the two from being separated from each other, and in addition, the track of the sliding groove 52 includes the gear position of the opening and closing of the bag opening switch structure 100, which is used for guiding the opening and closing of the bag opening switch structure 100, and is beneficial to simplify the use.

[0075] ​​​Optionally, the slide 52 is in the shape of a U, and is composed of two vertical grooves 521 arranged in the axial direction and a horizontal groove 522 arranged in the circumferential direction, and the three grooves are connected end to end. When the second movable part 50 rotates, the protrusion 41 slides in the horizontal groove 522, and when the second movable part 50 moves in the axial direction, the protrusion 41 slides in the vertical groove 521.

[0076] Optionally, the slide 52 is composed of two symmetrical vertical grooves arranged in the inner wall of the second movable part 50, and the protrusion 41 is also composed of two symmetrical protrusions arranged in the outer wall of the second fixed part 40.

[0077] It can be understood that in other embodiments, the slide 52 can also be in the shape of an L, and is composed of a vertical groove 521 and a horizontal groove 522.

[0078] It can be understood that in other embodiments, the slide 52 can also be provided with only one horizontal groove 522, and the length of the horizontal groove 522 is sufficient for the second magnetic assembly 60 to rotate to the repelling magnetic state with the first magnetic assembly 30.

[0079] It can be understood that in other embodiments, the slide 52 can also be arranged on the second fixed part 40, and the protrusion 41 can also be arranged on the second movable part 50.

[0080] In one embodiment, the second movable part 50 includes a movable rib 53 and a second base 54, the movable rib 53 is movably connected to the second base 54 and extends in the axial direction of the second base, one end of the movable rib 53 is inwardly provided with a clamping block 531 for clamping the end of the second fixed part 40 relatively close to the first movable part 20, and the other end of the movable rib 53 is outwardly provided with a pressing block 532, and when the pressing block 532 is pressed by an external force, the clamping block 531 can be separated from the end of the second fixed part 40.

[0081] In this way, the clamping block 531 can be separated from the second fixed part 40 by applying pressure to the pressing block 532 with the movable rib 53 as a fulcrum, and the required pressing force is reduced by using the principle of leverage, and the structure is simple and practical.

[0082] It can be understood that in other embodiments, the movable rib 53 can also be arranged on the second fixed part 40, and the clamping block 531 is outwardly arranged on the movable rib 53, and when the second movable part 50 is installed on the second fixed part 40, the clamping block 531 is pressed inwardly, and when the second movable part 50 is installed on the second fixed part 40, the movable rib 53 rebounds and the clamping block 531 abuts against the side wall of the second movable part 50, and the second movable part 50 can be dismounted by directly pressing the clamping block 531.

[0083] This configuration also enables a fixed connection between the second movable part 50 and the second fixed part 40. Since the snap-fit ​​block 531 is located on the second fixed part 40, it is not easily exposed to external contact during normal use, which helps to prevent accidental contact that could cause the second movable part 50 and the second fixed part 40 to loosen.

[0084] In one embodiment, the bag opening switch structure 100 further includes a gasket 70, which covers the side of the second movable member 50 that is relatively close to the first movable member 20. The gasket 70 has a clearance groove 71 for making way for the movable rib 53.

[0085] With this configuration, when the pressing block 532 malfunctions, the locking block 531 can still be manually pried open to separate the locking block 531 from the second movable part 50. By setting up the safety structure of the relief groove 71, the practicality of the bag opening switch structure 100 is improved.

[0086] It is understood that in other embodiments, the clearance groove 71 may not be provided, as long as the gasket 70 can cover the second movable member 50 to prevent the second magnetic component 60 from falling out of the second movable member 50.

[0087] This design increases the integrity and strength of the gasket 70, preventing it from being damaged due to fatigue.

[0088] Please see Figure 11 and Figure 14 , Figure 11 for Figure 2 The diagram shown is a structural schematic of the first movable component 20. Figure 12 for Figure 2 The diagram shows the structure of the first fastener 10. Figure 13 This is a schematic diagram of the structure of the first movable member 20 and the first fixed member 10 in the closed state. Figure 14 This is a schematic diagram of the structure of the first movable member 20 and the first fixed member 10 in the open state.

[0089] Optionally, in one embodiment of the present invention, the first fixing member 10 is provided with a plurality of sliding grooves 11, and the first movable member 20 is provided with a stop block 22 protruding from one end relative to the second fixing member 40. The stop block 22 can slide in the sliding groove 11, and the stop block 22 can abut against the inner wall of the sliding groove 11 when it moves to the limit position of the open state.

[0090] In this way, the first movable part 20 can axially slide in the first fixed part 10, and the stopper 22 helps prevent the first movable part 20 from sliding out of the first fixed part 10. When the first movable part 20 is installed, the first movable part 20 is movably inserted into the first fixed part 10, and the stopper 22 is inserted into the sliding groove 11 to fix the relative rotation angle between the first movable part 20 and the first fixed part 10, which is simple in structure and flexible in installation.

[0091] Optionally, the first movable part 20 is further provided with a rubber ring 23, which is used to increase the sealing between the first fixed part 10 and the first movable part 20 in the closed state, so as to prevent liquid from leaking from the gap.

[0092] Optionally, the first fixed part 10 is provided with a mounting block 12 at one end close to the second fixed part 40, which can abut against one end of the bag spout joint 200 away from the first movable part 20; the sliding groove 11 penetrates the bottom of the first fixed part 10, and the mounting block 12 has radial elasticity.

[0093] In this way, when the mounting block 12 reaches one end of the bag spout joint 200 away from the first movable part 20, the mounting block 12 automatically rebounds and hooks the first movable part 20, so that the first fixed part 10 is fixedly connected with the bag spout joint 200, which is simple in structure and convenient to assemble.

[0094] Optionally, the sliding groove 11 penetrates the bottom of the first fixed part 10, the mounting block 12 has radial elasticity, and can be clamped with the bag spout joint 200.

[0095] In this way, the first fixed part 10 is simple in structure and convenient to process the groove, and the penetrating design of the sliding groove 11 increases the force arm of the elastic mounting block 12, so that the mounting block 12 is easy to shrink when installed in the bag spout joint 200, reducing the installation difficulty.

[0096] It can be understood that in other embodiments, the sliding groove 11 is closed at both ends, and the mounting block 12 is separately provided with a slot that makes the mounting block 12 elastic.

[0097] In this way, the first movable part 20 is prevented from sliding out of the sliding groove 11 when sliding in the sliding groove 11, and the first fixed part 10 is complete, which improves the strength and durability.

[0098] Please refer to Figure 15 , Figure 15 for Figure 2 the structure diagram of the clamping part 80.

[0099] Optionally, in an embodiment of the present application, the bag opening switch structure 100 further comprises a clamping member 80, the clamping member 80 is used to wrap the pipeline 300, the second fixing member 40 is wrapped on the clamping member 80, and the pipeline 300 is clamped on the bag opening connector 200 by the clamping member 80.

[0100] In this way, when the second fixing member 40 is wrapped on the clamping member 80, one end of the clamping member 80 is contracted, so that the pipeline 300 is clamped on the bag opening connector 200, and the pipeline 300 is prevented from being pulled out of the bag opening connector 200.

[0101] It can be understood that in other embodiments, the clamping member 80 can not be provided, and the pipeline 300 is fixedly connected by the friction force between the pipeline 300 and the bag opening connector 200.

[0102] Optionally, in an embodiment of the present application, the clamping member 80 is provided with at least one deformation groove 81 in the axial direction, and the deformation groove 81 is used for radial deformation of the clamping member 80.

[0103] In this way, the deformation groove 81 divides the clamping member 80 into a plurality of similar pieces, increases the elasticity of the clamping member 80, so that the clamping member 80 can apply uniform pressure to the pipeline 300, and ensure that the clamping member 80, the pipeline 300 and the bag opening connector 200 are fully attached and not easy to loosen.

[0104] Optionally, the clamping member 80 is a hollow circular truncated cone, and the diameter of the end of the clamping member 80 close to the first movable member 20 is greater than the diameter of the end of the clamping member 80 away from the first movable member 20.

[0105] In this way, it is convenient to wrap the pipeline 300 with the clamping member 80, and when the second movable member 50 is installed, the clamping member 80 is extruded by the second movable member 50, the diameter of the end of the clamping member 80 close to the first movable member 20 is contracted more, which is beneficial to the clamping member 80 to clamp the pipeline 300.

[0106] Optionally, the end of the clamping member 80 close to the first movable member 20 is provided with a stepped portion 82, and the stepped portion 82 is used to extrude the pipeline 300, so that the pipeline 300 is attached to the shape of the bag opening connector 200.

[0107] Please refer to Figure 8 Optionally, the end of the clamping member 80 away from the first movable member 20 is provided with a limiting protrusion 83 and a limiting groove 84, and the inner wall of the second fixing member 40 is provided with a limiting step 42, when the second fixing member 40 is wrapped on the clamping member 80, the limiting step 42 passes through the limiting protrusion 83 and abuts in the limiting groove 84.

[0108] It can be understood that in other embodiments, the deformation groove 81 can also not be arranged, the clamping piece 80 is flexible itself or the clamping piece 80 has elasticity close to the first fixed piece 10, and under the extrusion of the second fixed piece 40, the clamping piece 80 can be tightly shrunk and tightly hold the pipeline 300.

[0109] It can be understood that in other embodiments, the shape of the clamping piece 80 can also be cylindrical, and the deformation groove 81 is arranged close to the first movable piece 20 side of the clamping piece 80, and the inner wall is provided with the step part 82.

[0110] A biological reaction device includes a biological reaction bag and the bag opening switch structure 100 as described above, and the biological reaction bag includes a bag opening connector 200, and the bag opening switch structure 100 is arranged at the bag opening connector 200.

[0111] The technical features of the above-described embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that it is within the scope of the present application.

[0112] The above-described embodiments only express several embodiments of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A bag opening switch structure, characterized in that, It includes a first fixing member, a first movable member, a first magnetic component, a second fixing member, a second movable member, and a second magnetic component. The first fixing member is connected to the bag opening connector, the first movable member is movably connected to the first fixing member, and the first magnetic component is disposed on the first movable member. The second fixing member is connected to a pipeline, the second movable member is movably connected to the second fixing member, and the second magnetic component is disposed on the second movable member. Wherein, at least one of the first magnetic component and the second magnetic component includes at least two magnetic elements with opposite magnetic poles, and the second movable element can rotate under the action of an external force to switch the bag opening switch structure between an open state and a closed state; In the open state, the second magnetic component repels the first magnetic component, causing the first movable member to move away from the bag opening connector, thereby allowing liquid to pass through; in the closed state, the second magnetic component attracts the first magnetic component, causing the first movable member to move closer to the bag opening connector, thereby obstructing liquid from passing through.

2. The bag opening switch structure according to claim 1, characterized in that, The second movable member is capable of radial rotation and axial sliding relative to the second fixed member.

3. The bag opening switch structure according to claim 1 or 2, characterized in that, One of the second fixed member and the second movable member is provided with a slide rail, and the other is provided with a protrusion, the protrusion being able to slide within the slide rail.

4. The bag opening switch structure according to claim 2, characterized in that, The second movable member includes a second base and a movable rib. The movable rib is movably connected to the second base and extends along the axial direction of the second base. One end of the movable rib has an inwardly protruding locking block for locking the end of the second fixing member that is relatively close to the first movable member. The other end of the movable rib has an outwardly protruding pressing block. When the pressing block is squeezed by an external force, the locking block can disengage from the end of the second fixing member.

5. The bag opening switch structure according to claim 4, characterized in that, The bag opening switch structure also includes a gasket, which covers the second movable member on the side relatively close to the first movable member. The gasket has a clearance groove for making way for the movable rib.

6. The bag opening switch structure according to claim 1, characterized in that, The first fixing member has a plurality of sliding grooves, and the first movable member has a stop block protruding at one end relative to the second fixing member. The stop block can slide in the sliding groove, and the stop block can abut against the inner wall of the sliding groove when it moves to the limit position of the open state.

7. The bag opening switch structure according to claim 6, characterized in that, The first fixing member has a mounting block protruding at one end relatively close to the second fixing member, and the mounting block can abut against the end of the bag opening connector that is relatively far away from the first movable member.

8. The bag opening switch structure according to claim 1, characterized in that, The bag opening switch structure also includes a snap-fit ​​component, which is used to fit the pipeline. The second fixing component is fitted onto the snap-fit ​​component and the pipeline is secured to the bag opening connector by the snap-fit ​​component.

9. The bag opening switch structure according to claim 8, characterized in that, The snap-fit ​​component has at least one deformation groove along its axial direction, the deformation groove being used to allow the snap-fit ​​component to undergo radial deformation; and / or The snap-fit ​​component is a hollow frustum shape, and the diameter of the snap-fit ​​component at the end closer to the first movable component is larger than the diameter at the end farther away from the first movable component.

10. A bioreactor, characterized in that, The invention includes a bioreactor bag and a bag opening switch structure as described in any one of claims 1 to 9, wherein the bioreactor bag includes a bag opening connector and the bag opening switch structure is disposed at the bag opening connector.

Images