Sterile connector assembly and sterile connector

Abstract

The utility model discloses a sterile connector assembly and a sterile connector. The sterile connector assembly comprises two connectors and two locking pieces, each connector comprises a clamping piece which is used for enabling the two connectors to be in butt joint to a pre-sealing position in the axial direction. And a locking area; the locking piece is used for being matched with the locking areas of the two connectors, so that the two connectors are in butt joint in the axial direction to form a sealing position, the two elastic sealing parts are compressed and abut against each other, and the two flow channels form a sealing channel extending in the axial direction. Wherein the total number of the clamping pieces in the two connectors is at least three, after the two connectors are in butt joint in the axial direction, the connecting line of the positions of the at least two clamping pieces penetrates through the flow channel, and the angle Q formed by the connecting lines of the at least two clamping pieces and the axis of the flow channel is larger than or equal to 120 degrees and smaller than or equal to 180 degrees. When the two connectors are in butt joint, the force borne by each clamping piece enables the stress of the connectors to be balanced, deviation or swing of the two connectors in the butt joint process is reduced, and therefore the stability of the two connectors at the pre-sealing position is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline connection technical field, especially aseptic connector assembly and aseptic connector. BACKGROUND

[0002] Aseptic connectors are devices designed to safely connect two or more fluid pathways while maintaining aseptic conditions. They are widely used in the pharmaceutical, biotechnology, medical device, and food and beverage industries, particularly in processes where it is necessary to ensure that products are not contaminated by microorganisms.

[0003] As disclosed in Chinese utility model patent CN216843590U, a kind of aseptic connector and connector assembly, including first aseptic connector and second aseptic connector, first aseptic connector and second aseptic connector can form first relative position and second relative position in space after axial butt joint;When in first relative position, second elastic sealing part and fourth elastic sealing part are elastically deformed, and after first film and second film are extracted, it can be abutted to form preliminary antibacterial seal;When in second relative position, first elastic sealing part and third elastic sealing part are abutted to form stable antibacterial seal;Specifically, the first mounting structure and the second mounting structure both include first containing piece and first insert piece, the first containing piece has first card-in space and second card-in space, the first insert piece has tongue part;The first containing piece and first insert piece form the card joint structure that is adapted, and when in first relative position, tongue part is located in first card-in space, when in second relative position, tongue part is located in second card-in space.

[0004] The aseptic connector of the above-mentioned patent has the following problems: when the first aseptic connector and the second aseptic connector are axially butt joint, the first insert piece of one and the first containing piece of the other are only aligned in the radial direction, and when the first aseptic connector and the second aseptic connector are in the first relative position, the tongue part is located in the first card-in space. At this time, the contact area between the first insert piece and the first containing piece is very small, which can easily cause the first insert piece and the first containing piece to shake or shift during cooperation, thereby affecting the positional accuracy of the first insert piece and the first containing piece during cooperation in the second card-in space, and affecting the stable antibacterial seal formed by the first aseptic connector and the second aseptic connector.

[0005] Therefore, it is necessary to improve the structure of the aseptic connector to improve the accuracy of axial butt joint and sealing. UTILITY MODEL CONTENTS

[0006] In view of the deficiencies of the prior art, the purpose of the utility model is to provide an aseptic connector assembly and an aseptic connector, which solves the problem of easy shaking of the existing aseptic connector during pre-sealing, affecting the sealing performance.

[0007] In order to achieve the above object, the utility model adopts the following technical scheme:

[0008] A sterile connector assembly comprises two connectors, and further comprises locking members;

[0009] The connector comprises:

[0010] A main body comprising a first surface;

[0011] A flow channel penetrating the main body along an axial direction from the first surface;

[0012] An elastic sealing part continuously extending around the flow channel and protruding from the first surface;

[0013] A clamping member for axially abutting the two connectors to a pre-sealing position;

[0014] And a locking area;

[0015] The locking members are used for cooperating with the locking areas of the two connectors, so that the two connectors are axially abutted to a sealing position, the two elastic sealing parts are compressed and abutted, and the two flow channels form an axially extending sealing channel;

[0016] Among them, the total number of the clamping members in the two connectors is at least three, after the two connectors are axially abutted,

[0017] The connecting line of the positions of at least two clamping members passes through the flow channel, and the angle Q formed by the connecting line of at least two clamping members and the axis of the flow channel is 120°≤Q≤180°.

[0018] The sterile connector assembly of the utility model adopts two connectors to butt joint, in order to guarantee the sterility of the flow channel, the two connectors are made to enter the pre-sealing position by the clamping pieces, in this state, the flow channels of the two connectors are preliminarily contacted, and since the total number of the clamping pieces in the two connectors is at least three, and the connecting line of the positions of at least two clamping pieces passes through the flow channel, the angle Q formed by the connecting line of the at least two clamping pieces and the axis of the flow channel is in the range of 120 ° ≤ Q ≤ 180 °, and Q is the maximum included angle formed by the two clamping pieces and the connecting line of the axis of the flow channel, thus, when the two connectors are axially butt jointed, each clamping piece can effectively disperse the force applied on the connector, avoiding local stress concentration, and also avoiding the situation that the stress of any two clamping pieces is on the same straight line and appears to be side turned, guaranteeing the uniformity and balance of the stress of the connector everywhere, reducing the probability that the two connectors are deviated or swing in the butt joint process and cause the flow channel to be exposed, thereby improving the stability of the two connectors in the pre-sealing position; and then the locking piece is used to cooperate with the locking area, so that the two connectors are axially butt jointed into the sealing position, realizing the flow channel sealing butt joint of the two connectors, separating the inside of the flow channel from the outside, and guaranteeing the sterility of the inside of the flow channel.

[0019] Preferably, the clamping pieces and the locking areas are distributed in the circumferential direction.

[0020] The clamping pieces and the locking areas will generate acting forces on the main bodies when the two connectors are axially butt jointed, the difference lies in that the clamping pieces apply the acting forces on the two main bodies when the two connectors are in the pre-sealing position, and the locking areas and the locking pieces apply the acting forces on the two main bodies when the two connectors are in the sealing position; the clamping pieces and the locking areas are distributed in the circumferential direction, that is, the projections of the clamping pieces and the locking areas on the first surface do not overlap in the axial direction, avoiding the deformation of the locking areas caused by the force applied by the clamping pieces in the pre-sealing position and affecting the cooperation of the locking areas and the locking pieces, so as to guarantee the accuracy of the movements of the clamping pieces and the locking areas, and further guarantee the final sealing property.

[0021] Preferably, in the two connectors, the number of the clamping pieces is four groups, and the four groups of clamping pieces are uniformly distributed in the circumferential direction, the maximum circumferential distance between the two adjacent clamping pieces is H1, the minimum circumferential distance between the clamping piece and the adjacent locking area is H2, and H1 / H2 = 1-6 is met.

[0022] The clamping pieces apply force to the two main bodies when the two connectors are in the pre-sealing position. Four clamping pieces are arranged and the circumferential spacing of the clamping pieces is controlled, which is beneficial to relatively disperse and more balanced force of the clamping pieces on the main body in the circumferential direction, and can reduce the relative deviation or swing of the two connectors when they are docked. The ratio between H1 and H2 is controlled, mainly to control the circumferential spacing between the clamping piece and the locking area. On the one hand, it is necessary to ensure that the clamping piece is relatively close to the locking area, so that the force applied by the clamping piece to the main body can exert a certain force on the elastic sealing part when the two connectors are in the pre-sealing position, so that the first surfaces of the two main bodies are relatively close, facilitating the cooperation of the locking piece and the locking area in the subsequent process. On the other hand, the clamping piece and the locking area still have a certain circumferential spacing to avoid the influence of the deformation of the clamping piece on the locking area when it is stressed. At the same time, the adjacent locking area on the side of the clamping piece is relatively close, which is beneficial to the timely action of the clamping piece of the two connectors to make the locking piece and the locking area cooperate after the clamping piece is clamped to the pre-sealing position, ensuring the continuity and rapidity of the sealing action.

[0023] Preferably, the clamping piece comprises a clamping part on the main body and a buckle part matched with the clamping part, the clamping part comprises a movable part extended from the main body and a first clamping hook at the end of the movable part.

[0024] In one of the connectors, the first clamping hooks of at least two clamping parts are opposite in the circumferential direction.

[0025] When the two connectors are docked to the pre-sealing position, the clamping part on one connector corresponds to the buckle part on the other connector. The main force applied to the buckle part is the first clamping hook. For one connector, the directions of at least two first clamping hooks are opposite in the circumferential direction. On the one hand, when clamping, the forces received by different parts of the connector are balanced with each other, and the connector will not be deviated or swung. On the other hand, after the two connectors are in the pre-sealing position, at least two first clamping hooks cooperate with the buckle part to generate circumferential component force or tangential component force, which can limit the rotation of the connector, avoid the failure of clamping due to the rotation of the connector in the pre-sealing position, and further avoid the failure of the docking of the two flow channels.

[0026] Preferably, the first clamping hooks of the non-adjacent two clamping pieces of the two connectors are opposite in the circumferential direction after the two connectors are axially docked.

[0027] As can be seen from the above, the directions of at least two first clamping hooks on the same connector are opposite in the circumferential direction. After the two connectors are axially docked, the adjacent two first clamping hooks belong to different connectors, and the non-adjacent two first clamping hooks belong to the same connector, so that the first clamping hooks of different connectors are arranged in the circumferential direction to ensure the stability of the clamping process and after clamping.

[0028] Preferably, in the sealed position, the first clamping hook of the clamping part and the clamping buckle of the other connector are axially spaced.

[0029] When the two connectors are in transition from the pre-sealed position to the sealed position, the clamping part no longer exerts force on the clamping buckle, avoiding interference with the cooperation of the locking member and the locking area, and the first clamping hook and the corresponding clamping buckle have an axial gap, indicating that the first surfaces of the two connector bodies are further approaching, and the elastic sealing part at the flow channel is further compressed, improving the sealing performance.

[0030] Preferably, in the sealed position, the axial distance between the first surfaces of the two bodies is d1; in the pre-sealed position, the axial distance between the first surfaces of the two bodies is d2; d1

[0031] From the above, when the two connectors are in transition from the pre-sealed position to the sealed position, the first surfaces of the two bodies will further approach and compress the elastic sealing part. Controlling the ratio of d1 to d2 within the above range controls the compression amount of the elastic sealing part and ensures the sealing performance. If the ratio is too large, the compression deformation amount of the elastic sealing part is small, which can easily result in low sealing performance between the elastic sealing parts. If the ratio is too small, it means that the two connectors still have a large axial distance in the pre-sealed position, and a large distance needs to be moved when transitioning from the pre-sealed position to the sealed position. In one case, the two elastic sealing parts are prone to misalignment in the pre-sealed position, resulting in exposure of the flow channel and communication between the inside of the flow channel and the outside. In another case, the elastic sealing part protrudes more from the flow channel, and the two elastic sealing parts are in contact in the pre-sealed position. When transitioning from the pre-sealed position to the sealed position, the compression deformation amount of the elastic sealing part is large, and the axial movement distance of the two connectors is long, which can easily cause the alignment state of the two connectors to deviate, affecting the sealing performance between them.

[0032] Preferably, in one of the connectors, the number of locking areas is at least two and is located on the radial sides of the flow channel.

[0033] The locking area is used to cooperate with the locking member to exert force on the connector when the two connectors are connected to the sealed position, so as to keep the two flow channels in sealed communication. The number of locking areas is at least two and is located on the radial sides of the flow channel. The force on the connector is relatively dispersed and uniform, so that the compression deformation amount of the elastic sealing part is uniform in the circumferential direction, and the sealing performance is good.

[0034] Preferably, the radial projection of the locking member covers the elastic sealing portion when the two connectors are docked to the sealed position, and the elastic sealing portion as a whole is located in the force applying range of the locking member, is effectively pressed and kept in a stable compressed state, thereby providing better sealing effect.

[0035] Preferably, the locking member comprises a sliding member, and the locking area comprises a sliding member arranged on the main body, the sliding member extends in the radial direction or in the direction parallel to the radial direction on the side of the main body, so that the sliding member and the sliding member extend in the radial direction or in the direction parallel to the radial direction.

[0036] The pressure of the material liquid in the flow channel acts on the docking position of the two connectors. When the pressure of the material liquid is large, the two connectors have a tendency to move away from each other at the docking position, and the force received is in the axial direction. The sliding member and the sliding member are connected in the radial direction, that is, the locking member approaches the center of the flow channel in the radial sliding mode. The force applying direction of the locking member locking process is the radial direction, and the axial tension is applied to the two main bodies. The force applying direction is perpendicular to the force direction of the material liquid acting on the connector. As long as the locking member and the locking area body are not damaged, the axial tension of the two main bodies will not fail, which is beneficial to avoid the axial separation of the two main bodies. In addition, the sliding connection of the sliding member and the sliding member enables the locking member to slide in the locking area, quickly adjusts the fitting relationship between the locking member and the locking area, and the two connectors can quickly switch between the pre-sealing position and the sealing position. The time and operation errors caused by the positioning or alignment between the sliding member and the main body during sliding are avoided, which ensures the continuity and rapidity of the sealing action. It is beneficial to promote the rapid locking between the locking member and the main body, ensure the sterility of the flow channel, and improve the stability and accuracy of the sliding process.

[0037] Preferably, the sliding member is provided with a sliding groove extending in the direction parallel to the radial direction, and the sliding groove has a first opening facing the circumferential side of the locking member. The sliding member and the sliding groove are connected in the radial direction.

[0038] The cooperation of the sliding groove and the sliding member can pre-align the locking member and the locking area when the two connectors are in the pre-sealing position, so that the locking member is inserted into the locking area through the sliding member, but the axial distance between the two connectors is not shortened. In the subsequent operation, the locking member and the locking area do not need to be aligned again, and the locking member can be directly pressed inward to make the two connectors in the sealing position, which is more convenient to operate and reduces the risk of disengagement due to relative offset or misalignment of the two connectors. The cooperation mode of the sliding groove and the sliding member is simple and easy to process.

[0039] Preferably, the sliding groove comprises a first section close to the flow channel and a second section away from the flow channel, and the first gap between the first section and the sliding member is greater than the second gap between the second section and the sliding member.

[0040] In the pre-sealing position, the slider is located in the second section, and in the sealing position, the slider is located in the first section.

[0041] The first fitting gap is the gap between the slider and the inner wall of the first section when the slider is in the first section, and the second fitting gap is the gap between the slider and the inner wall of the second section when the slider is in the second section; when the two connectors transition from the pre-sealing position to the sealing position, the first surfaces of the two main bodies will approach each other, and under the action of the axial tension force of the locking member on the two main bodies, the sliding grooves of the two locking zones will be driven to approach each other relative to the sliders on the locking member. In other words, the sliders will tend to move axially away from the sliding grooves, therefore, the first fitting gap between the first section and the slider is greater than the second fitting gap between the second section and the slider, leaving space for the axial movement of the slider relative to the sliding grooves to facilitate the sliding of the slider from the second section to the first section.

[0042] Preferably, the axial distance of the first section is h1, the axial distance of the second section is h2, and h1 / h2 = 1-1.2.

[0043] The axial distance of the first section refers to the distance between the two inner walls of the first section in the axial direction, and the axial distance of the second section refers to the distance between the two inner walls of the second section in the axial direction. In the pre-sealing position, the slider is located in the second section, and if the ratio of h1 to h2 is too large, it means that h1 is larger than h2. In order to ensure the sealing performance of the two connectors, the axial movement distance of the two connectors from the pre-sealing position to the sealing position is relatively fixed, and h1 needs to satisfy the axial movement space required by the slider in the first section based on the axial movement distance of the two connectors, that is, h1 cannot be too small, and the slider cannot be in a suspended state in the first section, which is easy to fall out of the sliding groove, that is, h1 cannot be too large. When the ratio of h1 to h2 is too large, h2 will be too small, and the slider will not be easy to be clamped into the sliding groove, and it will be difficult to slide radially in the sliding groove, affecting the continuity and speed of the sealing action. When the ratio of h1 to h2 is too small, h2 will be too large, and the slider will be easy to fall out of the sliding groove, and the locking member cannot be pre-corresponded with the locking zone. Therefore, the ratio of h1 to h2 needs to be controlled so that the slider can smoothly slide in the sliding groove and will not easily fall out of the sliding groove, and the slider has a suitable axial displacement when it moves to the first section of the sliding groove, which is adapted to the axial displacement of the two connectors from the pre-sealing position to the sealing position, avoiding the interference of the slider with the axial approach of the two connectors for sealing, and ensuring the sealing effect.

[0044] Preferably, the radial length of the first section is h3, the radial length of the second section is h4, and h3 / h4 = 0.3-4.

[0045] The radial length of the second section represents the sliding distance of the sliding member in the second section when the two connectors are in transition from the pre-sealing position to the sealing position, and the radial length of the first section represents the radial movable distance of the sliding member in the first section when the two connectors are in the sealing position. Based on the size of the sliding member, if h3 is too large and the ratio of h3 to h4 is too large, the sliding member in the sealing position is prone to sliding in the first section, affecting the stability and sealing effect of the two connectors in the sealing position. If h3 is too small, the sliding member is not easy to enter the first section. If h4 is too large and the ratio of h3 to h4 is too small, the sliding member needs to move too far radially, which is difficult to achieve quick locking and is not conducive to maintaining the accuracy of the alignment process before the two main bodies are locked.

[0046] Preferably, the end of the sliding member away from the flow channel has a second displacement surface, and the second displacement surface is inclined towards the direction of the sliding groove; the sliding member has a first displacement surface,

[0047] When the locking member cooperates with the locking area, the first displacement surface and the second displacement surface are in extrusion cooperation, guiding the sliding member into the sliding groove.

[0048] The first displacement surface and the second displacement surface function in that the sliding member on the locking member needs to have a pre-tightening force to enter the sliding groove. Therefore, the initial position of the sliding member is aligned with the end of the sliding member away from the flow channel, and the sliding groove is located radially inside the end of the sliding member. Then, through the cooperation of the first displacement surface and the second displacement surface, the resistance at the moment of initial contact between the sliding member and the sliding member is reduced, and the sliding member is deformed along the tangent to store power. With the further deepening of the locking member, the sliding member is opposite to the first opening of the sliding groove and is reset and clamped into the second section of the sliding groove under the action of the pre-tightening force, realizing the cooperation and connection between the sliding member and the sliding groove without other components, which is simple in structure and easy to operate.

[0049] Preferably, the locking area includes a receiving portion on the side surface of the main body, and the locking member includes a locking portion; when the two connectors are in the sealing position and are axially butted, the locking portion cooperates with the receiving portion of the two connectors to form a locking fit.

[0050] The locking portion of one locking member cooperates with the two receiving portions on the same side of the two connectors to lock, so as to apply an axial tension to the two receiving portions, axially pull the two connectors close and maintain the locked state, so that the flow channels on the two connectors are sealed and butted, and the sealing effect is improved.

[0051] Preferably, the locking portion includes a locking surface, and the receiving portion includes a receiving surface, and the locking surface abuts against the corresponding receiving surface to form a locking fit.

[0052] When the locking part is inserted into the receiving part, the locking surfaces are respectively abutted against the receiving surfaces. In order to realize the axial abutment and locking of the two connectors, the two locking surfaces are oppositely arranged, and the receiving surfaces on the two connectors are opposite to each other, so that the axial tension is applied to the locking surfaces and the receiving surfaces when the locking surfaces are abutted against the receiving surfaces, and the two connectors are kept close to each other, and the elastic sealing part is compressed to seal the abutted two flow channels.

[0053] Preferably, the locking part comprises two locking plates, the locking surfaces are located on the locking plates, the receiving part comprises a receiving groove opened on the side surface of the main body, the receiving groove comprises the receiving surfaces and a second opening on the side surface of the main body, and the axial projections of the locking plates and the receiving groove at least partially overlap when the two connectors are abutted in the sealed position.

[0054] The receiving groove can receive the locking plates therein, so that most of the locking part is located inside the main body, which is beneficial to avoid the locking part from being exposed outside and being accidentally separated from the main body. In addition, the axial projections of the locking plates and the receiving groove at least partially overlap, so that the contact area of the locking plates and the receiving groove is large, which is beneficial to balance the force applied by the locking plates to the receiving groove, and further improve the clamping and locking effect of the locking part and the sealing effect of the axial abutment of the two connectors.

[0055] Preferably, the axial distance of the receiving groove tends to decrease along the direction away from the flow channel from the direction close to the flow channel, and only in the sealed position, the locking part is entirely in the receiving groove, and the receiving surfaces of the receiving groove apply the axial pre-tightening force to the locking surfaces of the locking part.

[0056] The axial distance of the receiving groove refers to the axial distance between the two axially adjacent receiving surfaces of the receiving groove which are adapted to the same locking part when the two connectors are axially abutted. It can be understood that the end of the receiving surface close to the flow channel is the innermost end, and the end away from the flow channel is the outermost end. The axial distance between the outermost ends of the two receiving surfaces is smaller than the axial distance between the innermost ends. Thus, when the locking plates are inserted into the receiving groove, the axial distance between the two receiving surfaces gradually increases, while the axial distance between the abutting positions of the two locking plates and the receiving surfaces is basically unchanged. The locking surfaces on the locking plates apply the axial force to the receiving surfaces, so that the two connectors are axially close to each other, and the elastic sealing part is compressed, thereby realizing the sealed abutment of the two connectors and the sealed communication of the flow channels. Similarly, the receiving surfaces of the receiving groove apply the axial pre-tightening force to the locking surfaces of the locking part, so that the locking part and the receiving part are kept in the locked state, the locking part and the receiving part are stably locked and matched with the locking area, so as to ensure the sealing performance of the two connectors.

[0057] Preferably, the axial distance between the two locking plates is D1, the minimum axial distance between the receiving surfaces of the two axially adjacent receiving grooves when the two connectors are in the pre-sealing position is D2, and D1 / D2=0.7-0.95.

[0058] Based on the above, the axial distance D1 between the two locking plates refers to the axial distance between the two locking surfaces, and also refers to the axial distance between the innermost ends of the receiving surfaces when the two connectors are in the sealing position and the receiving surfaces are in contact with the locking surfaces. D2 refers to the axial distance between the outermost ends of the two receiving surfaces when the two connectors are in the pre-sealing position. The value of D1 / D2 is controlled to control the difficulty of the locking plate being inserted into the receiving groove and the locking force. If the value of D1 / D2 is too small, it means that D1 is too small, and it is difficult for the two locking plates to be inserted into the corresponding receiving grooves at the same time, which can easily cause the force direction of the two main bodies to deviate, and further cause the butt joint of the two main bodies to fail, resulting in the internal flow channel being connected with the outside. If the value of D1 / D2 is too large, the difference between D1 and D2 is small, and the axial displacement of the two connectors when transitioning from the pre-sealing position to the sealing position is small, which is insufficient for the compression of the elastic sealing part, and the sealing effect is not good. In addition, the axial pre-tightening force between the receiving surface and the locking surface is insufficient, and the locking effect of the two is not good. The locking member is easily affected by external force and exits the receiving groove, which further causes the locking to fail and the flow channel to be unable to be sealed and connected, resulting in pollution.

[0059] Preferably, the length of the receiving groove along the radial direction of the flow channel is L1, and the length of the locking plate along the radial direction of the flow channel is L2, and L1 / L2=1.2-5.

[0060] The radial length L1 of the receiving groove represents the distance between the outermost end and the innermost end of the receiving surface, and the receiving surface will exert an axial pre-tightening force on the locking surface of the locking plate to fix the locking plate in the receiving groove. Based on the moment, the longer L1 is, the greater the axial pre-tightening force of the outermost end of the receiving surface on the locking plate. However, L1 should not be too long to avoid the connector being too large in size. When the two connectors are in the sealing position, the locking plate is completely placed in the receiving groove, and the radial length L2 of the locking plate is the insertion depth and locking depth of the locking plate and the receiving groove. The larger L2 is, the larger the contact area of the locking plate and the receiving groove, and the better the locking effect. However, it will result in a longer insertion process. Therefore, the value of L1 / L2 needs to be controlled to make the receiving surface have a suitable axial pre-tightening force on the locking surface and to achieve quick insertion and locking. If the value of L1 / L2 is too small, it means that L2 is too long, which makes it difficult to achieve quick locking and ensures the accuracy of the alignment process before the two main bodies are locked. If the value of L1 / L2 is too large, either L1 is too long, resulting in the connector being too large in size, or L2 is too short, resulting in insufficient contact area between the locking plate and the receiving groove, and the locking plate is easily separated from the receiving groove.

[0061] Preferably, the two end portions of the locking plate each have a third displacement surface, the two third displacement surfaces are oppositely inclined, and when the locking member is matched with the locking area, the two third displacement surfaces are respectively in extrusion fit with the receiving portions of the two connectors to guide the locking plate into the corresponding receiving groove.

[0062] The third displacement surface has the effect that when the locking plate is inserted into the receiving groove, the third displacement surface first contacts the outermost end of the receiving groove and gradually compresses the adjacent side walls of the two receiving grooves, so that the locking plate can enter the receiving groove more easily, and then the locking surface abuts against the receiving surface and exerts an axial force to further compress the adjacent side walls of the two receiving grooves until the locking plate is completely inserted into the receiving groove.

[0063] Preferably, the locking member further comprises a connecting portion connecting the two locking plates, and in the sealed position, the locking plates are in locking fit with the corresponding receiving grooves, and the radial projection of the connecting portion partially overlaps the radial projection of the first surface of the two main bodies.

[0064] The direction of the line connecting the circumferential two ends of the connecting portion is defined as the first direction, the first direction is parallel to the radial direction of the flow channel, the maximum length of the main body in the first direction is L3, and the maximum length of the circumferential two ends of the connecting portion in the first direction is L4, L4 / L3=0.3-0.7.

[0065] L3 represents the maximum length of the main body in the first direction, when the main body is cylindrical, L3 represents the diameter of the main body, and when the main body is square, L3 represents the length of the longest side in the first direction. The value of L4 / L3 is controlled, that is, the proportion of the locking member and the locking area on the main body is controlled. If the ratio is too small, the proportion of the locking area on the main body is small, and the force range on the main body is relatively concentrated, and the main body is prone to skew or deviation during locking, and the locking effect is not good. If the ratio is too large, the proportion of the locking area on the main body is too large, which is not convenient for the operator to operate, and on the other hand, it occupies the position of the clamping member, affecting the stability of the two connectors in the pre-sealing position.

[0066] Preferably, the locking member is provided with a stop portion, and the main body is provided with a blocking portion, the stop portion and the blocking portion cooperate to prevent the locking member from sliding away from the flow channel.

[0067] The stop portion is a barb, the barb is located at the end of the locking member close to the flow channel, and extends along the radial direction of the main body or in a direction parallel to the radial direction. The blocking portion is a barb groove located inside the main body, and in the sealed position, the barb and the barb groove are connected to each other.

[0068] Alternatively,

[0069] The locking piece comprises at least two locking pieces, one of which has a first hook-shaped stopper, and the other has a second hook-shaped stopper, the first hook-shaped stopper and the second hook-shaped stopper are located at the end of the locking piece close to the flow channel, and extend in the radial direction of the main body or in a direction parallel to the radial direction, the blocking part is a through groove located in the main body, and the extending direction of the through groove is the same as that of the first hook-shaped stopper and the second hook-shaped stopper, and in the sealing position, the first hook-shaped stopper and / or the second hook-shaped stopper are hooked with each other by penetrating into the through groove.

[0070] Alternatively,

[0071] The stopper is a sliding piece of the locking piece, the blocking part is an inclined block arranged on the sliding piece of the main body, the sliding piece and the sliding piece are in sliding cooperation, the inclined block is arranged on the sliding path of the sliding piece, and the sliding path comprises a guide inclined surface and a stop surface, and in the sealing position, the sliding piece abuts against the stop surface.

[0072] Alternatively,

[0073] The stopper is a concave point arranged on the locking piece, and the blocking part is a convex point arranged on the main body, and in the sealing position, the convex point is adapted to be clamped with the concave point.

[0074] The above-mentioned solutions can prevent the locking piece from sliding away from the flow channel, improve the connection firmness of the locking piece and the locking area, and further improve the sealing effect of the axial butt joint of the two connectors.

[0075] In order to achieve the above-mentioned purpose, the utility model also adopts the following technical scheme:

[0076] A sterile connector comprises the above-mentioned connector, and further comprises a bacteria isolation film which is radially and removably connected with the first surface, is used for covering the flow channel and the elastic sealing part, is used for removing in the pre-sealing position to make the two elastic sealing parts contact and make the two flow channels sealingly communicate, and the position of the bacteria isolation film does not overlap with the position of the clamping piece.

[0077] The position of the bacteria isolation film of the sterile connector does not overlap with the position of the clamping piece, and the removal of the bacteria isolation film does not interfere with the clamping piece. Meanwhile, by arranging the number and position of the clamping piece, the two connectors also have high stability in the pre-sealing position. Even if the bacteria isolation film is removed, the pre-sealing position can be maintained, and the two elastic sealing parts are in contact. On the premise of avoiding the contact between the flow channel and the outside, the two flow channels are sealingly communicated.

[0078] Preferably, the sterile connector comprises a sterile sealing cap which covers the first surface of the connector and forms a sealing connection, and the sterile sealing cap is clamped and matched with the clamping piece.

[0079] The sterile sealing cap protects the first surface of the main body and the sterile membrane covering the flow channel, and the sterile membrane can be accommodated in the sterile sealing cap to avoid accidental removal and cause the flow channel to be in communication with the outside, thereby causing pollution.

[0080] Preferably, the sterile sealing cap is provided with an air inlet, and an axial projection of the air inlet is located in an axial projection of the sterile membrane; the air inlet maintains the internal and external pressure balance when the sterile sealing cap is connected with the connector, especially for the sterile membrane, avoids the compression of the space when the sterile sealing cap is connected with the connector to cause the pressure to increase, and causes the sterile membrane to be deformed or even broken, thereby affecting the sterility of the sterile connector before use.

[0081] Preferably, the connector is provided with a positioning point, and the sterile sealing cap is provided with a positioning part matched with the positioning point; the positioning point and the positioning part are matched with each other to realize accurate alignment and stable connection of the sterile sealing cap and the connector, and also make the sterile sealing cap more easily detached from the connector, thereby improving the operation efficiency when the two connectors are connected.

[0082] Preferably, the sterile connector further comprises a locking member, and an inner side of a periphery of the sterile sealing cap is provided with an avoiding space for accommodating the locking member; the locking member is accommodated between the sterile sealing cap and the connector, thereby improving the operation efficiency when the two connectors are connected, and the locking member is taken out from the avoiding space and can be used after being taken out by the operator, thereby avoiding the lack of the locking member when the connectors are connected.

[0083] Preferably, the periphery of the sterile sealing cap is provided with a baffle, and the baffle extends axially to form the avoiding space for accommodating the locking member with the main body of the connector; one of the functions of the baffle is to provide the radial pre-tightening force when the positioning part and the positioning point are matched, thereby improving the firmness when the sterile sealing cap and the connector are sealed and connected, and the other function is to form the avoiding space to accommodate the locking member.

[0084] Compared with the prior art, the utility model has at least the following beneficial effects:

[0085] The sterile connector assembly of the utility model, adopt two connectors to butt joint, in order to guarantee the sterility of flow channel, adopt the clamping piece to make two connectors enter the pre-sealing position first, in this state, the flow channel of two connectors is primarily contacted, and because the total number of the clamping piece in two connectors is at least three, and the line of at least two clamping piece positions passes through the flow channel, the angle Q formed by the line of at least two clamping piece and the flow channel axis is in the range of 120 ° ≤ Q ≤ 180 °, and Q is the maximum included angle formed by the line of two clamping pieces and the flow channel axis, therefore, when two connectors butt joint in the axial direction, each clamping piece can effectively disperse the force applied on the connector, avoid local stress concentration, also avoid the situation that the stress of any two clamping pieces is on the same straight line and appears side turning, guarantee the stress uniformity and stress balance of each part of the connector, reduce the probability that two connectors deviate or swing in the butt joint process and cause the exposure of flow channel, thereby improve the stability of two connectors in the pre-sealing position, and then utilize the locking piece and the locking area to cooperate, make two connectors butt joint in the axial direction into the sealing position, realize the flow channel sealing butt joint of two connectors, separate the inside of flow channel and the outside, guarantee the sterility of the inside of flow channel. BRIEF DESCRIPTION OF DRAWINGS

[0086] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the drawings needed to be used in the specific embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0087] Figure 1 It is the structure schematic diagram of the sterile connector assembly of the utility model embodiment one, wherein two connectors are in the sealing position.

[0088] Figure 2 It is the sectional view schematic diagram of the sterile connector assembly in Figure 1

[0089] Figure 3 It is another sectional view schematic diagram of the sterile connector assembly in Figure 1

[0090] Figure 4 It is the position schematic diagram of the locking area and the clamping piece of the sterile connector assembly of the utility model embodiment one.

[0091] Figure 5 It is the structure schematic diagram of the sterile connector assembly of the utility model embodiment one, wherein two connectors are in the pre-sealing position, and the bacteria isolation film has been removed.

[0092] Figure 6 ​​This is a schematic diagram of the structure of the sterile connector assembly according to Embodiment 1 of this utility model, wherein the two connectors are in the pre-sealed position and the sterile membrane has not been removed.

[0093] Figure 7 for Figure 6 A side view of the sterile connector assembly.

[0094] Figure 8 for Figure 7 Enlarged view of point A in the image.

[0095] Figure 9 for Figure 6 A cross-sectional schematic diagram of the sterile connector assembly.

[0096] Figure 10 for Figure 6 Another cross-sectional view of the sterile connector assembly.

[0097] Figure 11 This is a schematic diagram of the connector according to Embodiment 1 of this utility model.

[0098] Figure 12 This is a structural schematic diagram of the locking component according to Embodiment 1 of this utility model.

[0099] Figure 13 This is a schematic diagram showing the position of the locking area and the snap-fit ​​component of the aseptic connector assembly in Embodiment 2 of this utility model.

[0100] Figure 14 This is a schematic diagram showing the position of the locking area and the snap-fit ​​component of the aseptic connector assembly in Embodiment 3 of this utility model.

[0101] Figure 15 This is a schematic diagram showing the position of the locking area and the snap-fit ​​component of the aseptic connector assembly in Embodiment 4 of this utility model.

[0102] Figure 16 This is a schematic diagram of the structure of the sterile connector assembly in Embodiment 5 of this utility model.

[0103] Figure 17 This is a schematic diagram of the structure of the sterile connector in Embodiment Six of this utility model.

[0104] Figure 18 for Figure 17 A cross-sectional schematic diagram of a sterile connector.

[0105] Figure 19 for Figure 17 A cross-sectional view of another part of the sterile connector.

[0106] Figure 20 This is a schematic diagram of the structure of the sterile connector in Embodiment 7 of this utility model.

[0107] Figure 21 Structure diagram of the aseptic sealing cap of the sixth embodiment of the present application.

[0108] Figure 22 Position diagram of the clamping piece of the aseptic connector of the seventh embodiment of the present application.

[0109] Figure 23 Position diagram of the clamping piece of the aseptic connector of the eighth embodiment of the present application.

[0110] Figure 24 Sectional structure diagram of the aseptic connector assembly of the ninth embodiment of the present application.

[0111] Figure 25 Structure diagram of the locking piece of the ninth embodiment of the present application.

[0112] Figure 26 Structure diagram of the aseptic connector assembly of the tenth embodiment of the present application.

[0113] Figure 27 Sectional structure diagram of the aseptic connector assembly of the tenth embodiment of the present application.

[0114] Figure 28 Cooperation structure diagram of the locking piece and the connector of the eleventh embodiment of the present application.

[0115] Figure 29 Sectional structure diagram of the aseptic connector assembly of the eleventh embodiment of the present application.

[0116] Figure 30 Sectional structure diagram of the aseptic connector assembly of the twelfth embodiment of the present application.

[0117] Explanation of reference signs

[0118] 10, connector; 11, main body; 111, first surface; 112, second surface; 12, flow channel; 13, elastic sealing part; 14, clamping piece; 141, clamping part; 1411, movable part; 1412, first clamping hook; 142, buckling part; 1421, clamping block; 143, first plane; 144, first inclined surface; 15, locking area; 151, sliding piece; 152, sliding groove; 153, first section; 154, second section; 155, second accommodating surface; 156, receiving groove; 1561, inclined groove; 1562, clamping groove; 1563, protruding point; 157, receiving surface; 158, first opening; 159, second opening; 16, bacteria isolation film; 17, inverted hook groove; 18, inclined block; 181, guide inclined surface; 182, stop surface; 19, through groove;

[0119] 20, locking piece; 21, sliding piece; 22, first displacement surface; 23, locking plate; 231, locking surface; 24, clamp portion; 25, third displacement surface; 26, concave point; 27, connecting portion; 28, barb; 281, first barb; 282, second barb;

[0120] 30, sterile sealing cap; 31, air inlet; 32, positioning portion; 33, baffle; 34, avoiding space; 35, clamping point. DETAILED DESCRIPTION

[0121] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0122] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply 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 a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0123] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. 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.

[0124] Referring to Figures 1-10 , the present application discloses a sterile connector assembly, Figures 1 to 3 The two connectors 10 of the first embodiment shown are in a sealed position, Figures 5 to 10The two connectors 10 of the shown embodiment one are in a pre-sealing position, which is formed by the axial abutment of the two connectors 10 via the locking member 20, wherein each connector 10 comprises a main body 11, a flow channel 12, an elastic sealing part 13, and a clamping member 14 and a locking area 15 on the main body 11, the main body 11 comprises a first surface 111 and a second surface 112 which is axially opposite to the first surface 111, the flow channel 12 penetrates the main body 11 in the axial direction from the first surface 111 and is used for flowing fluid, the elastic sealing part 13 is arranged in the flow channel 12 and continuously extends along the inner wall of the flow channel 12 in the circumferential direction, the elastic sealing part 13 protrudes from the first surface 111, so that when the two connectors 10 are axially abutted, the end portions of the elastic sealing parts 13 are sealed against each other to seal the axial abutment of the two connectors 10, the flow channels 12 inside the elastic sealing parts 13 are sealed and connected to each other and are isolated from the outside, and the clamping member 14, the locking area 15 and the locking member 20 are used to apply an axial force to the two connectors 10 in the opposite direction to keep the two connectors 10 in the pre-sealing position or the sealing position.

[0125] It should be noted that the radial direction and the axial direction in the embodiments of the utility model are the radial direction and the axial direction of the main body 11 and the flow channel 12, that is, as shown in the drawings, the flow channel 12 is located at the center of the main body 11 and extends in the axial direction of the main body 11, the center of the flow channel 12 coincides with or substantially coincides with the center of the main body 11, the direction perpendicular to the axis and passing through the center is the radial direction, and the direction parallel to a certain radial direction and not passing through the center on the main body 11 is the radial offset direction. Figure 1

[0126] Specifically, the clamping members 14 of the two connectors 10 are clamped to each other, so that the two connectors 10 are axially abutted to the pre-sealing position, at this time, the two elastic sealing parts 13 are in contact with each other and the two flow channels 12 are axially abutted and connected, the inside of the flow channel 12 is not connected to the outside, the compression deformation amount of the elastic sealing part 13 is small, the sealing effect is poor, and the two connectors 10 need to be accurately aligned to ensure that the flow channel 12 is not connected to the outside, the total number of the clamping members 14 in the two connectors 10 is at least three, and the connecting line of the positions of at least two clamping members 14 passes through the flow channel 12 after the two connectors 10 are axially abutted, and the angle Q formed by the connecting line of the axial centers of the at least two clamping members 14 and the flow channel 12 is less than 90 degrees, as shown in the drawings. Figure 4 ​As shown, the angle Q formed by the lines connecting at least two snap-fit ​​pieces 14 to the axis of the flow channel 12 is in the range of 120°≤Q≤180°, and Q is the maximum included angle formed by the lines connecting the two snap-fit ​​pieces 14 to the axis of the flow channel 12 (due to the space occupied by the snap-fit ​​pieces 14 themselves, the maximum included angle formed by the lines connecting the two snap-fit ​​pieces 14 to the axis of the flow channel 12 is chosen here). Therefore, the forces on any two snap-fit ​​pieces 14 on a connector 10 are not on the same straight line. When the two connectors 10 are in the pre-sealed position, the force received by each snap-fit ​​piece 14 and transmitted to the body 11 ensures that the force on each part of the connector 10 is balanced. No matter which direction the external force is applied, there is a corresponding snap-fit ​​piece 14 that provides a reaction force, realizing the all-round limiting of the connector 10, reducing the probability of the two connectors 10 shifting or swaying during the docking process and causing the flow channel 12 to be exposed, thereby improving the stability of the two connectors 10 in the pre-sealed position.

[0127] The engagement of the locking area 15 and the locking element 20 allows the two connectors 10 to transition from the pre-sealed position to the sealed position and remain in the sealed position. At this time, the two elastic sealing parts 13 are compressed and pressed together, and the two flow channels 12 form an axially extending sealing channel. The compression deformation of the elastic sealing parts 13 is moderate, and the sealing effect is good. The flow channels 12 of the two connectors 10 are sealed and connected, separating the inside of the flow channel 12 from the outside, thus ensuring the sterility of the inside of the flow channel 12.

[0128] There are various types of card connectors 14 and their placement positions. Several examples will be described below.

[0129] like Figure 11 In the first embodiment shown, the number of snap-fit ​​pieces 14 on a connector 10 is four, and they are circumferentially offset from the locking area 15, meaning that their projections along the axial direction on the first surface 111 do not overlap; as shown Figure 4 As shown, when the two connectors 10 are axially mated, the snap-fit ​​pieces 14 at opposite positions snap together to form four sets of snap-fit ​​pieces 14, which are evenly distributed circumferentially. Figure 4 In the diagram, red indicates the snap-fit ​​element 14 on one connector 10, and black indicates the snap-fit ​​element 14 on the other connector 10. Both the snap-fit ​​element 14 and the locking area 15 exert force on the body 11 when the two connectors 10 are axially mated. The difference is that the snap-fit ​​element 14 applies force to the two bodies 11 when the two connectors 10 are in the pre-sealed position, while the locking area 15 and locking element 20 apply force to the two bodies 11 when the two connectors 10 are in the sealed position. The snap-fit ​​element 14 and locking area 15 are circumferentially staggered to prevent the snap-fit ​​element 14 from applying force in the pre-sealed position, which could deform the locking area 15 and affect the fit between the locking area 15 and locking element 20. This ensures the accuracy of the snap-fit ​​element 14 and locking area 15 during their respective movements, thereby guaranteeing the final seal.

[0130] Based on this, the maximum circumferential spacing between two adjacent clamping pieces 14 is H1, and the minimum circumferential spacing between the clamping piece 14 and the adjacent locking area 15 is H2, which satisfies H1 / H2=1-6, mainly to control the circumferential spacing between the clamping piece 14 and the locking area 15. On the one hand, it is necessary to ensure that the clamping piece 14 is relatively close to the locking area 15, so that when the two connectors 10 are in the pre-sealing position, the force exerted by the clamping piece 14 on the main body 11 can exert a certain force on the elastic sealing part 13, so that the first surfaces 111 of the two main bodies 11 are relatively close, facilitating the cooperation between the locking piece 20 and the locking area 15 after the clamping piece 14 of the two connectors 10 is clamped to the pre-sealing position; on the other hand, the clamping piece 14 and the locking area 15 still have a certain circumferential spacing, so as to avoid the influence of the deformation of the clamping piece 14 on the locking area 15 when the clamping piece 14 is stressed. At the same time, the clamping piece 14 is relatively close to the adjacent locking area 15 on one side, which is conducive to the cooperation between the locking piece 20 and the locking area 15 after the clamping piece 14 of the two connectors 10 is clamped to the pre-sealing position, ensuring the continuity and rapidity of the sealing action.

[0131] As shown in the second embodiment of Figure 13 and the third embodiment of Figure 14 , the number of clamping pieces 14 on one connector 10 is three, and the clamping pieces 14 are circumferentially staggered with the locking area 15. When the two connectors 10 are axially connected, the clamping pieces 14 in the relative positions are clamped to each other, forming three groups of clamping pieces 14, and the three groups of clamping pieces 14 are uniformly distributed along the circumference.

[0132] As shown in the fourth embodiment of Figure 15 , the number of clamping pieces 14 on one connector 10 is three, and one of the clamping pieces 14 is circumferentially overlapped with the position of the locking area 15, located above or below the locking area 15 in the axial direction, and the two do not interfere with each other when used respectively. When the two connectors 10 are axially connected, the clamping pieces 14 in the relative positions are clamped to each other, forming three groups of clamping pieces 14, and the three groups of clamping pieces 14 are uniformly distributed along the circumference.

[0133] In each of the above embodiments, the clamping piece 14 includes a clamping part 141 located on the main body 11 and a buckle part 142 cooperating with the clamping part 141, which can be specifically referred to Figure 11 , the clamping part 141 includes a movable part 1411 extending from the main body 11 and a first clamping hook 1412 located at the end of the movable part 1411. Specifically, on one connector 10, the clamping part 141 and the buckle part 142 are circumferentially spaced apart, and on the other connector 10, the clamping part 141 and the buckle part 142 are also circumferentially spaced apart. When the two connectors 10 are axially connected, the clamping part 141 on one is clamped to the buckle part 142 on the other, so that the two connectors 10 are in the pre-sealing position, and the clamping method can be specifically referred to Figure 7 .

[0134] As preferred, the directions of the first hooks 1412 of the at least two clamping portions 141 in one connector 10 are opposite in the circumferential direction, and the opposite in the circumferential direction means that the directions of the first hooks 1412 are arranged opposite to each other along the circumferential direction of the main body 11, for example, the direction of the first hook 1412 of one clamping portion 141 is clockwise along the circumferential direction of the main body 11, and the direction of the first hook 1412 of the other clamping portion 141 is counterclockwise along the circumferential direction of the main body 11, for another example, the first hooks 1412 of the two clamping portions 141 are located on the same circumference of the main body 11, and the directions of the first hooks 1412 are opposite to each other, and so on. Figure 4 As shown in FIG. 2, the red clamping portion 141 and the buckle portion 142 represent the clamping member 14 on one connector 10, the black clamping portion 141 and the buckle portion 142 represent the clamping member 14 on another connector 10, the triangular part of the clamping portion 141 represents the first hook 1412, and the direction of the sharp corner of the triangle represents the direction of the first hook 1412, that is, the directions of the first hooks 1412 of the two clamping portions 141 in one connector 10 are opposite to each other, so that the forces received by one connector 10 can be balanced with each other during clamping, thereby improving the force uniformity of the connector and preventing the connector 10 from deflecting or swinging. In addition, after the two connectors 10 are in the pre-sealing position, the at least two first hooks 1412 can generate circumferential component forces or tangential component forces to limit the rotation of the connector 10, thereby preventing the connector 10 in the pre-sealing position from rotating and causing the clamping to fail, and further preventing the two flow channels 12 from being connected.

[0135] In Figure 13 As shown in FIG. 2, the red clamping portion 141 and the buckle portion 142 represent the clamping member 14 on one connector 10, the black clamping portion 141 and the buckle portion 142 represent the clamping member 14 on another connector 10, the triangular part of the clamping portion 141 represents the first hook 1412, and the direction of the sharp corner of the triangle represents the direction of the first hook 1412, that is, the directions of the first hooks 1412 of the two clamping portions 141 in one connector 10 are opposite to each other, so that the forces received by one connector 10 can be balanced with each other during clamping, thereby improving the force uniformity of the connector and preventing the connector 10 from deflecting or swinging. In addition, after the two connectors 10 are in the pre-sealing position, the at least two first hooks 1412 can generate circumferential component forces or tangential component forces to limit the rotation of the connector 10, thereby preventing the connector 10 in the pre-sealing position from rotating and causing the clamping to fail, and further preventing the two flow channels 12 from being connected.

[0136] In Figure 14In the third embodiment shown, the red lines representing the snap-fit ​​portion 141 and snap-fit ​​portion 142 indicate the snap-fit ​​part 14 on one connector 10, and the black lines representing the snap-fit ​​portion 141 and snap-fit ​​portion 142 indicate the snap-fit ​​part 14 on another connector 10. The triangular portion of the snap-fit ​​portion 141 indicates the first hook 1412, and the direction of the apex of the triangle indicates the orientation of the first hook 1412. That is, the first hook 1412 of the snap-fit ​​portion 141 in both connectors 10 are oriented towards the center of the flow channel 12. Since the three snap-fit ​​portions 141 are evenly distributed circumferentially when the two connectors 10 are in the pre-sealed position, the resultant force is directed towards the center of the flow channel 12. Similarly, the forces on the connectors 10 can cancel each other out, while restricting the relative rotation of the two connectors 10, ensuring that the two flow channels 12 are accurately connected.

[0137] In such Figure 4 In the first embodiment shown, after the two connectors 10 are axially connected, the first hooks 1412 of the non-adjacent snap-fit ​​pieces 14 are oriented in opposite directions. As can be seen from the above, at least two first hooks 1412 on the same connector 10 are oriented in opposite directions in the circumferential direction. After the two connectors 10 are axially connected, the two adjacent first hooks 1412 belong to different connectors 10, and the two non-adjacent first hooks 1412 belong to the same connector 10. This makes the first hooks 1412 of different connectors 10 spaced apart in the circumferential direction to ensure the stability of the snap-fit ​​process and after snap-fit.

[0138] When the two connectors 10 transition from the pre-sealed position to the sealed position, the engaging portion 141 no longer applies force to the latching portion 142 to avoid interfering with the engagement between the locking member 20 and the locking area 15. Therefore, in the sealed position, the engaging portion 141 of one of the two connectors 10 and the latching portion 142 of the other are in a non-engaged state. The first hook 1412 of the engaging portion 141 and the latching portion 142 are spaced apart axially, such as... Figure 1 As shown, this arrangement means that the first surfaces 111 of the two connector bodies 11 are brought closer together, and the elastic sealing portion 13 at the flow channel 12 is further compressed, thereby improving the sealing performance.

[0139] like Figure 1 , Figure 5 and Figure 8As shown, the clamping portion 141 comprises a movable portion 1411 extending from the main body 11 and a first clamping hook 1412 at the end of the movable portion 1411, the movable portion 1411 is L-shaped, extending along the circumferential direction first and then extending along the axial direction; the clamping portion 142 comprises a clamping block 1421 extending from the main body 11 along the circumferential direction, the first clamping hook 1412 and the clamping block 1421 each comprise a first plane 143 and a first inclined surface 144, the two first inclined surfaces 144 have the same inclination direction, during the clamping process of the first clamping hook 1412 and the clamping block 1421, the two first inclined surfaces 144 abut, the movable portion 1411 and the first clamping hook 1412 are pushed away from the clamping block 1421 until the two first planes 143 are aligned, the movable portion 1411 is reset, the first clamping hook 1412 is clamped with the clamping block 1421, the two first planes 143 abut, and the pre-sealing is achieved, as shown in Figure 8 As shown in Figure 1 At the sealing position, the gap between the first clamping hook 1412 of the clamping portion 141 and the clamping portion 142 refers to the gap between the two first planes 143.

[0140] Of course, in other embodiments, the clamping portion 142 can be provided on the second surface 112 of the main body 11, comprising a clamping plane or a clamping groove; the movable portion 1411 is also L-shaped, extending along the circumferential direction first and then extending along the axial direction, the clamping process is similar to the first embodiment, at the pre-sealing position, the plane of the first clamping hook 1412 is clamped with the clamping plane of the second surface 112 or the clamping portion 142.

[0141] Figure 3 In the embodiment, at the sealing position, the axial distance between the first surfaces 111 of the two main bodies 11 is d1, Figure 10In the pre-sealing position, the axial distance between the first surfaces 111 of the two main bodies 11 is d2; as known from the above, when the two connectors 10 transition from the pre-sealing position to the sealing position, the first surfaces 111 of the two main bodies 11 will further approach and compress the elastic sealing portions 13, thus d1 < d2; and the ratio d1 / d2 is controlled to be 0.1-0.8, which aims to control the compression amount of the elastic sealing portions 13 and ensure the sealing performance; if the ratio is too large, the compression deformation amount of the elastic sealing portions 13 is small, which is easy to cause low sealing performance between the elastic sealing portions 13; if the ratio is too small, it means that the two connectors 10 still have a large axial distance in the pre-sealing position, and a large distance needs to be moved when transitioning from the pre-sealing position to the sealing position; in one case, the two elastic sealing portions 13 are easy to be misaligned in the pre-sealing position, which causes the flow channels 12 to be exposed and the inside of the flow channels 12 to be in communication with the outside; in another case, the elastic sealing portions 13 protrude from the flow channels 12 too much, and the two elastic sealing portions 13 are in contact in the pre-sealing position, and then the compression deformation amount of the elastic sealing portions 13 is large when transitioning from the pre-sealing position to the sealing position, which causes a large axial movement distance of the two connectors 10 and is easy to cause the alignment state of the two connectors 10 to deviate, affecting the sealing performance between the two connectors 10.

[0142] As shown in the first embodiment of Figure 4 , the number of locking zones 15 is two, and they are symmetrically arranged about the center of the flow channel 12 and located on the two radial sides of the flow channel 12; at this time, the radial direction refers to the radial direction connecting the center of the locking zone 15 and the center of the flow channel 12, which is defined as the first radial direction. The locking zone 15 is used to cooperate with the locking member 20 to apply a force to the connector 10 when the two connectors 10 are docked into the sealing position, so as to keep the two flow channels 12 in sealed communication; the number of locking zones 15 is two and they are located on the two radial sides of the flow channel 12, which makes the force applied to the connector 10 relatively dispersed and uniform, so that the compression deformation amount of the elastic sealing portion 13 is uniform in the circumferential direction, and the sealing performance is good; and the number and position of the locking zones 15 are convenient for manual operation, which is conducive to improving the operation efficiency.

[0143] Of course, in other embodiments, the number of locking zones 15 is three and they are uniformly distributed in the circumferential direction, which can also ensure the stability and locking effect of the two connectors 10 in the sealing position.

[0144] As shown in the first embodiment of Figure 3 and the fifth embodiment of Figure 16 , when the two connectors 10 are docked into the sealing position, the radial projection of the locking member 20 covers the elastic sealing portion 13, and the elastic sealing portion 13 as a whole is located in the force application range of the locking member 20 and is effectively squeezed and kept in a stable compression state, thereby providing better sealing effect.

[0145] There are several ways in which the locking element 20 and the locking area 15 can be matched. Several of them will be described with examples below.

[0146] like Figures 1 to 10 In the first embodiment shown, to improve the cooperation effect between the locking member 20 and the locking area 15, the locking member 20 includes a sliding member 21, and the locking area 15 includes a sliding member 151 disposed on the main body 11. The sliding member 151 extends on the side of the main body 11 in a direction parallel to the first radial direction, that is, the extension range of the sliding member 151 is in the radial offset direction. The sliding member 21 and the sliding member 151 are slidably connected in a direction parallel to the first radial direction. For the main body 11, the direction of force application is radial, which is simplified to radial sliding for ease of representation below. Figure 11 As shown, in this embodiment, the sliding member 21 is located on both sides of the locking member 20 and has a protrusion structure. The sliding member 151 is disposed on the side of the main body 11 and has a plate-like structure. The sliding member 151 has a groove 152 extending parallel to the first radial direction. The groove 152 has a first opening 158 facing the circumferential side of the locking member 20. The sliding member 21 can be inserted into the groove 152 through the first opening 158 and slide radially in the groove 152.

[0147] The pressure of the liquid in the flow channel 12 acts on the mating point of the two connectors 10. When the liquid pressure is high, the two connectors 10 tend to separate from each other at the mating point, and the force they experience is axial. Meanwhile, the sliding member 21 and the sliding member 151 are connected by radial sliding, that is, the locking member 20 approaches the center of the flow channel 12 by radial sliding. The direction of the force applied by the locking member 20 during the locking process is radial, and at the same time, an axial tension force is applied to the two main bodies 11. The direction of the force applied is perpendicular to the direction of the force exerted by the liquid on the connectors 10. As long as the locking member 20 and the locking area 15 body are not damaged, the axial tension force on the two main bodies 11 will not fail. This helps to prevent the two main bodies 11 from separating axially. In addition, the sliding member 21 and the sliding member 151 are slidably connected, allowing the locking member 20 to slide within the locking area 15. This allows for quick adjustment of the fit between the locking member 20 and the locking area 15, and the two connectors 10 can quickly switch between the pre-sealed position and the sealed position. During sliding, there is no need for the locking member 20 and the main body 11 to perform positioning or alignment, which would otherwise cause time and operational errors. This ensures the continuity and speed of the sealing action. It also helps to quickly lock the locking member 20 and the main body 11, ensuring the sterility of the flow channel 12, while improving the stability and accuracy of the sliding process.

[0148] In some other embodiments, the slider 21 includes a groove 152 and the sliding member 151 includes a protrusion structure. That is, the positions of the groove 152 and the slider 21 in the first embodiment are interchanged, which can also realize the quick locking between the locking member 20 and the main body 11.

[0149] like Figure 11As shown, in Embodiment 1, the groove 152 is formed on the side of the main body 11 and extends radially into the side structure of the main body 11; in other embodiments, the sliding member 151 may be provided on the second surface 112 of the main body 11, or a groove parallel to the first radial direction may be provided on the second surface 112 of the main body 11, with the groove serving as the sliding member 151, and the groove 152 formed on the side wall of the groove, as well as other feasible solutions.

[0150] In summary, the groove 152 is a closed groove on the sliding member 151. Therefore, the locking member 20 can be pre-attached to the two main bodies 11 through the pre-interlocking of the sliding member 21 with the groove 152. At this time, the two connectors 10 are in a pre-sealed position, and the locking member 20 is inserted into the locking area 15 through the sliding member 21, but it will not bring the axial distance between the two connectors 10 closer. In subsequent operations, it is not necessary to align the locking member 20 with the locking area 15 again. Simply pressing the locking member 20 inward will put the two connectors 10 in a sealed position, making the operation more convenient and reducing the risk of the two connectors 10 being misaligned or offset and thus losing their seal. The fit between the groove 152 and the sliding member 21 is simple and easy to manufacture.

[0151] like Figure 2 and Figure 9 In the first embodiment shown, the slide 152 includes a first section 153 near the flow channel 12 and a second section 154 away from the flow channel 12. In the pre-sealed position, the sliding member 21 is located in the second section 154. In the sealed position, the sliding member 21 is located in the first section 153. The first mating clearance between the first section 153 and the sliding member 21 is greater than the second mating clearance between the second section 154 and the sliding member 21.

[0152] The first fitting clearance is the gap between the slider 21 and the inner wall of the first section 153 when the slider 21 is in the first section 153, and the second fitting clearance is the gap between the slider 21 and the inner wall of the second section 154 when the slider 21 is in the second section 154. When the two connectors 10 transition from the pre-sealed position to the sealed position, the first surfaces 111 of the two main bodies 11 will be relatively close. Under the axial tension force of the locking member 20 on the two main bodies 11, the slide grooves 152 of the two locking areas 15 will be driven to move closer to each other relative to the slider 21 on the locking member 20. Conversely, the slider 21 will tend to move axially away from the slide groove 152. Therefore, the first fitting clearance between the first section 153 and the slider 21 is greater than the second fitting clearance between the second section 154 and the slider 21, leaving space for the axial movement of the slider 21 relative to the slide groove 152, so as to make the slider 21 slide from the second section 154 into the first section 153.

[0153] like Figure 2As shown, the side of the first section 153 away from the first surface 111 is a bevel and a plane, and the side of the second section 154 away from the first surface 111 is a plane, and the two planes are connected by the bevel, so that the sliding piece 21 moves smoothly along the inner side of the second section 154 to the inner side of the first section 153 in the sliding groove 152.

[0154] As shown in FIG. 1, the first connector 10 comprises a sliding piece 21, a sliding groove 152, a locking piece 20, and a locking area 15. Figure 2 As shown, the axial distance h1 of the first section 153 is the distance between the two inner walls of the first section 153 in the axial direction, specifically the distance between the upper and lower planes; the axial distance h2 of the second section 154 refers to the distance between the two inner walls of the second section 154 in the axial direction, and h1 / h2 = 1-1.2. The reason for such a setting is that when the sliding piece 21 is located in the second section 154 in the pre-sealing position, if the ratio of h1 and h2 is too large, it means that h1 is larger than h2. In order to ensure the sealing performance of the two connectors 10, the axial movement distance of the two connectors 10 from the pre-sealing position to the sealing position is relatively fixed, and h1 needs to meet the axial movement space required by the sliding piece 21 in the first section 153 based on the axial movement distance of the two connectors 10, that is, h1 cannot be too small, and the sliding piece 21 cannot be in a suspended state in the first section 153, and it is also easy to fall out of the sliding groove 152, that is, h1 cannot be too large, and when the ratio of h1 and h2 is too large, h2 will be too small, and the sliding piece 21 will not be easy to be clamped into the sliding groove 152, and it will be difficult to slide in the sliding groove 152, affecting the continuity and rapidity of the sealing action. When the ratio of h1 and h2 is too small, h2 will be too large, and the sliding piece 21 will be easy to fall out of the sliding groove 152, and it will not be able to be pre-locked with the locking area 15. Therefore, it is necessary to control the ratio of h1 and h2, so that the sliding piece 21 can smoothly slide in the sliding groove 152 and will not easily fall out of the sliding groove 152, and when the sliding piece 21 moves to the first section 153 of the sliding groove 152, it has a proper axial displacement, which is adapted to the axial displacement of the two connectors 10 from the pre-sealing position to the sealing position, avoids the interference of the sliding piece 21 with the axial approach of the two connectors 10 for sealing, and ensures the sealing effect.

[0155] In other embodiments, the side of the first section 153 away from the first surface 111 is a plane, and the side of the second section 154 away from the first surface 111 is a plane, and the two planes are connected by a step. When the sliding piece 21 moves to the first section 153, it will be clamped with the step. When the two connectors 10 remain in the sealing state, the locking piece 20 may be separated from the locking area 15 under the action of external force, and the step can block the movement of the sliding piece 21, thereby locking the locking piece 20 in the locking area 15.

[0156] As shown in FIG. 1, the first connector 10 comprises a sliding piece 21, a sliding groove 152, a locking piece 20, and a locking area 15. Figure 2As shown, the radial length of the first section 153 is h3, and the radial length of the second section 154 is h4. It should be noted that the above-mentioned radial length is the length in the direction parallel to the first radial, and does not represent the direct distance from the first section or the second section to the center of the flow passage 12. The radial length of the first section 153 represents the radial movement distance of the sliding piece 21 in the first section 153 when the two connectors 10 are in the sealed position. The radial length of the second section 154 represents the sliding distance of the sliding piece 21 in the second section 154 when the two connectors 10 are in the transition from the pre-sealed position to the sealed position. The reason why h3 / h4=0.3-4 is that, based on the size of the sliding piece 21, if h3 is too large, and the ratio of h3 to h4 is too large, it is easy to cause the sliding piece 21 at the sealed position to slide in the first section 153, affecting the stability and sealing effect of the two connectors 10 in the sealed position. If h3 is too small, it is easy to cause the sliding piece 21 to be difficult to enter the first section 153. If h4 is too large, and the ratio of h3 to h4 is too small, it means that the sliding piece 21 needs to move a too long distance in the radial direction, which is difficult to achieve quick locking, and is not conducive to maintaining the accuracy of the alignment process before the two main bodies 11 are locked.

[0157] As shown in Figure 11 and Figure 12 The end of the sliding piece 151 away from the flow passage 12 has a second displacement surface 155, and the second displacement surface 155 is inclined toward the direction of the sliding groove 152. The sliding piece 21 has a first displacement surface 22. The first displacement surface 22 and the second displacement surface 155 function in that the sliding piece 21 on the locking piece 20 needs to have a pre-tightening force to enter the sliding groove 152. Therefore, the initial position of the sliding piece 21 is aligned with the end of the sliding piece 151 away from the flow passage 12. The sliding groove 152 is located on the inner side of the end of the sliding piece 151 close to the flow passage 12. When the locking piece 20 cooperates with the locking area 15, the first displacement surface 22 and the second displacement surface 155 are extruded and cooperated to guide the sliding piece 21 into the sliding groove 152, reduce the resistance at the moment of the initial contact between the sliding piece 21 and the sliding piece 151, and make the sliding piece 21 be deformed and stored in the tangential direction. With the further deepening of the locking piece 20, the sliding piece 21 is opposite to the first opening 158 of the sliding groove 152 and is reset and clamped into the second section 154 of the sliding groove 152 under the action of the pre-tightening force, realizing the cooperative connection between the sliding piece 21 and the sliding groove 152 without other components, which is simple in structure and easy to operate.

[0158] As shown in Figure 3 and Figure 10In the illustrated embodiment, the locking area 15 includes a receiving portion located on the side of the main body 11, and the locking member 20 includes a locking portion. When the two connectors 10 are axially mated to a sealed position, the locking portions form a locking engagement with the receiving portions of both connectors 10. The locking portion and the receiving portion can be an interference fit or a mechanical clamping fit, as long as the locking engagement can be achieved. The locking portion of one locking member 20 engages with two receiving portions on the same side of the two connectors 10 to apply an axial tension force to the two receiving portions, thereby pulling the two connectors 10 axially closer and maintaining the locked state, so that the flow channels 12 on the two connectors 10 are sealed and connected, improving the sealing effect.

[0159] like Figures 10-11 As shown, the receiving part in Embodiment 1 includes a receiving groove 156 formed on the side of the main body 11. The receiving groove 156 includes a receiving surface 157 and a second opening 159 located on the side of the main body 11. The second opening 159 is formed by the receiving groove 156 extending in a direction parallel to the first radial direction and penetrating the side of the main body 11. That is, the locking member 20 enters into the receiving groove 156 through the second opening 159. The locking member 20 includes two locking plates 23 and a connecting portion 27 connecting the two locking plates 23. The two locking plates 23 are the locking portions of the locking member 20. After one locking plate 23 is inserted into a receiving groove 156, the locking surface 231 on the locking plate 23 abuts against the receiving surface 157 of the receiving groove 156. The locking surfaces 231 on the two locking plates 23 are arranged opposite to each other, and the receiving surfaces 157 on the two connectors 10 are opposite to each other, so as to apply an axial tension force when the locking surfaces 231 abut against their respective receiving surfaces 157, and keep the two connectors 10 close to each other, compressing the elastic sealing portion 13 to seal the two flow channels 12. When the two connectors 10 are axially mated in a sealed position, the axial projections of the locking plate 23 and the receiving groove 156 at least partially overlap. The receiving groove 156 can accommodate the locking plate 23, so that most of the locking part is located inside the main body 11. This helps to prevent the locking part from being exposed to the outside and accidentally detaching from the main body 11. In addition, the axial projections of the locking plate 23 and the receiving groove 156 at least partially overlap, resulting in a larger contact area between the locking plate 23 and the receiving groove 156. This helps to improve the force balance of the locking plate 23 on the receiving groove 156, thereby improving the clamping and locking effect of the locking member 20 and the sealing effect of the axial mating of the two connectors 10.

[0160] In order to avoid the locking plate 23 from sliding out of the receiving groove 156, the axial distance of the receiving groove 156 tends to be smaller from the direction close to the flow channel 12 to the direction away from the flow channel 12 along the first radial direction, only in the sealing position, the locking part is entirely in the receiving groove 156, and the receiving surface 157 of the receiving groove 156 exerts an axial pre-tightening force on the locking surface 231 of the locking part. The axial distance of the receiving groove 156 refers to the axial distance between the two axially adjacent receiving surfaces 157 of the receiving grooves 156 on the two connectors 10 that are adapted to the same locking piece 20 when the two connectors 10 are axially butted. It can be understood that the end of the receiving surface 157 close to the flow channel 12 is the innermost end, and the end away from the flow channel 12 is the outermost end. The axial distance between the outermost ends of the two receiving surfaces 157 is smaller than the axial distance between the innermost ends. Thus, when the locking plate 23 is inserted into the receiving groove 156, due to the gradually increasing axial distance between the two receiving surfaces 157, and the axial distance between the two locking plates 23 and the abutting position of the receiving surface 157 is basically unchanged, the locking surface 231 on the locking plate 23 exerts an axial force on the receiving surface 157, so that the two connectors 10 are axially close to each other, thereby compressing the elastic sealing part 13, realizing the sealed butt joint of the two connectors 10 and the sealed communication of the flow channel 12. Similarly, the receiving surface 157 of the receiving groove 156 exerts an axial pre-tightening force on the locking surface 231 of the locking part, so that the locking part and the receiving part remain in the locked state, the locking piece 20 is stably locked and matched with the locking area 15, so as to ensure the sealing performance of the two connectors 10.

[0161] Specifically, as Figure 1 and Figure 10As shown, the axial distance between the two locking plates 23 is D1, which refers to the axial distance between the two locking surfaces 231, and is also the axial distance between the innermost ends of the receiving surfaces 157 when the two connectors 10 are in the sealed position and the receiving surfaces 157 are in contact with the locking surfaces 231. When the two connectors 10 are in the pre-sealed position, the minimum axial distance between the receiving surfaces 157 of the two axially adjacent receiving grooves 156 is D2, which refers to the axial distance between the outermost ends of the two receiving surfaces 157 when the two connectors 10 are in the pre-sealed position. The value of D1 / D2 is controlled, and the purpose is to control the difficulty of the locking plates 23 being clamped into the receiving grooves 156 and the locking force. If the value of D1 / D2 is too small, it means that D1 is too small, and it is difficult for the two locking plates 23 to be clamped into the corresponding receiving grooves 156 at the same time, which can easily cause the force direction of the two main bodies 11 to deviate, and then cause the butt joint of the two main bodies 11 to fail, and the flow channel 12 is connected with the outside. If the value of D1 / D2 is too large, the difference between D1 and D2 is small, and the axial displacement of the two connectors 10 from the pre-sealed position to the sealed position is small, which is insufficient for the compression of the elastic sealing part 13, and the sealing effect is not good. In addition, the axial pre-tightening force between the receiving surface 157 and the locking surface 231 is insufficient, and the locking effect of the two is not good. The locking member 20 is easily affected by external force and exits the receiving groove 156, which can cause locking failure, the flow channel 12 cannot be sealed and connected, and pollution is caused.

[0162] As Figure 3As shown, the length of the receiving groove 156 along the first radial direction of the flow channel 12 is L1, the length of the locking plate 23 along the first radial direction of the flow channel 12 is L2, the radial length L1 of the receiving groove 156 represents the distance between the outermost end and the innermost end of the receiving surface 157 in the first radial direction, and the receiving surface 157 will exert an axial pre-tightening force on the locking surface 231 of the locking plate 23 to fix the locking plate 23 in the receiving groove 156. Based on the moment, the longer L1 is, the greater the axial pre-tightening force of the outermost end of the receiving surface 157 on the locking plate 23, but L1 cannot be too long to avoid the volume of the connector 10 being too large; when the two connectors 10 are in the sealed position, the locking plate 23 is completely placed in the receiving groove 156, then the radial length L2 of the locking plate 23 is the insertion depth and the locking depth of the locking plate 23 and the receiving groove 156, the greater L2 is, the greater the contact area of the locking plate 23 and the receiving groove 156, and the better the locking effect, but it will cause the insertion process to take longer. L1 / L2 = 1.2-5, control the value of L1 / L2, so that the receiving surface 157 has a suitable axial pre-tightening force on the locking surface 231, and can realize quick insertion and locking; if the value of L1 / L2 is too small, it means that L2 is too long, it is difficult to realize quick locking, it is difficult to ensure the continuity and rapidity of the sealing action, and it is not conducive to maintaining the accuracy of the alignment process before the two main bodies 11 are locked, if the value of L1 / L2 is too large, either L1 is too long, resulting in the volume of the connector 10 being too large, or L2 is too short, the contact area of the locking plate 23 and the receiving groove 156 is insufficient, and the locking plate 23 is easy to separate from the receiving groove 156.

[0163] As shown in Figure 12 The sliding member 21 is provided on the plate-shaped structure on both sides of the locking plate 23, and the radial length of the plate-shaped structure is L3, which is also the length of the plate-shaped structure in the first radial direction. L3 is greater than L2, so that when the sliding member 21 is located in the second section 154 of the sliding groove 152, the locking plate 23 is located outside the receiving groove 156, and the locking surface 231 is not in contact with the receiving surface 157.

[0164] As shown in Figure 12 and Figure 3 In example one, the ends of the two locking plates 23 respectively have third accommodation surfaces 25, and the two third accommodation surfaces 25 are oppositely inclined. When the locking member 20 cooperates with the locking area 15, the two third accommodation surfaces 25 respectively press-fit with the receiving parts of the two connectors 10 to guide the locking plate 23 into the corresponding receiving groove 156. The third accommodation surface 25 functions in that when the locking plate 23 is inserted into the receiving groove 156, the third accommodation surface 25 first contacts the outermost end of the receiving groove 156 and gradually compresses the adjacent side walls of the two receiving grooves 156, so that the locking plate 23 can enter the receiving groove 156 more easily, and then the locking surface 231 abuts against the receiving surface 157 and exerts an axial force, further compressing the adjacent side walls of the two receiving grooves 156, until the locking plate 23 is completely inserted into the receiving groove 156.

[0165] In the embodiment one, the connecting part 27 connects the two locking plates 23, so that the locking piece 20 forms a whole, the radial projection of the connecting part 27 partially overlaps the radial projection of the two main bodies 11, and the axial projection of the connecting part 27 partially overlaps the axial projection of the two main bodies 11, that is, when the locking piece 20 is embedded in the main body 11, the connecting part 27 is also at least partially embedded in the main body, as shown in Figure 3 The connecting part 27 is completely embedded in the side surface of the main body 11, and the outer peripheral surface of the connecting part 27 is substantially flush with the outer peripheral surface of the main body 11, that is, the outer peripheral shape of the locking piece 20 is substantially consistent with the outer peripheral shape of the locking area, as shown in Figure 4 The connecting part 27 is completely embedded in the side surface of the main body 11, and the outer peripheral surface of the connecting part 27 is substantially flush with the outer peripheral surface of the main body 11, that is, the outer peripheral shape of the locking piece 20 is substantially consistent with the outer peripheral shape of the locking area, as shown in

[0166] In the embodiment five shown in Figure 16 The receiving part includes an inclined groove 1561 located on the second surface 112 of the main body 11, and the inner end of the inclined groove 1561 has a clamping groove 1562. The locking piece 20 includes two oppositely arranged clamping parts 24, which move along the inclined groove 1561 and are finally clamped into the clamping groove 1562, so as to apply an axial force to the two main bodies 11 and fix them on the main bodies 11, so that the two connectors 10 remain in the sealed position.

[0167] In some embodiments, in order to further reduce the risk of the locking member 20 sliding away from the flow channel 12 direction, even separated from the main body 11, a stop portion is arranged on the locking member 20, a blocking portion is arranged on the main body 11, and the stop portion and the blocking portion are matched to prevent the locking member 20 from sliding away from the flow channel 12 direction, so as to ensure that the locking member 20 continuously exerts axial force on the two connectors 10, so that the two connectors 10 remain in the sealed position, and the sealing effect of the axial butt joint of the two connectors 10 is improved.

[0168] The stop portion and the blocking portion can have various forms and matching modes.

[0169] As shown in the ninth embodiment, Figure 24 the stop portion is a barb 28, which is located at the end of the locking member 20 close to the flow channel 12 and extends along the radial direction of the main body 11 or a direction parallel to the radial direction; the blocking portion is a barb groove 17 located in the interior of the main body 11, and in the sealed position, the barb 28 and the barb groove 17 are hooked with each other. Each locking member 20 has a barb 28 and is correspondingly hooked with the barb groove 17 on the corresponding side.

[0170] Specifically, as shown in the ninth embodiment, Figure 25 the barb 28 is a hook-shaped structure, which is located at the end of the locking member 20 on the circumferential two sides and extends along the first radial direction. In this embodiment, the barb 28 is located on the front side of the sliding member 21 and is relatively closer to the center of the flow channel 12; as shown in the ninth embodiment, Figure 24 the barb groove 17 is located in the interior of the main body 11, specifically at the groove bottom of the receiving groove 156, and the opening direction of the barb groove 17 is parallel to the first radial direction and is located in the locking area 15. When the locking member 20 is inserted into the receiving groove 156 along the radial direction, the barb 28 gradually approaches and penetrates through the barb groove 17. When the two connectors 10 are in the sealed position, the barb 28 penetrates through the barb groove 17 and is clamped with the outer peripheral wall of the barb groove 17, so as to realize the hooking of the two, thereby preventing the locking member 20 from exiting the receiving groove 156 along the radial direction, improving the connection firmness of the locking member 20 and the locking area 15, and further improving the sealing effect of the axial butt joint of the two connectors 10.

[0171] As shown in the tenth embodiment, Figure 26 and 27 the stop portion is the sliding member 21 of the locking member 20, and the blocking portion is an inclined block 18 arranged on the sliding member 151 of the main body 11. The sliding member 21 and the sliding member 151 are in sliding cooperation, the inclined block 18 is arranged on the sliding path of the sliding member 21, and includes a guide inclined surface 181 and a stop surface 182. In the sealed position, the sliding member 21 abuts against the stop surface 182. Each locking member 20 has a stop portion and cooperates with the inclined block 18 on the corresponding side to stop.

[0172] Specifically, the sliding member 21 in this embodiment has a similar or identical structure to the sliding member 21 in Embodiment 1, and the method of achieving sliding engagement with the sliding member 151 is also the same as in Embodiment 1, which will not be repeated here; the difference is that in this embodiment, a wedge 18 is provided on the sliding member 151; as Figure 26 As shown in the enlarged view, the inclined block 18 is disposed on the inner wall of the slide groove 152 near the first surface, within the range of the second section 154. Thus, when the two connectors 10 are in the pre-sealed position, the sliding member 21 is located on the side of the inclined block 18 away from the flow channel 12, relative to the guide inclined surface 181 close to the inclined block 18, while the locking member 20 is close to the flow channel 12. When the two connectors 10 change from the pre-sealed position to the sealed position, the sliding member 21 approaches and enters the first section 153 along the guide inclined surface 181. In the sealed position, the sliding member 21 abuts against the stop surface 182, which is axially arranged and can prevent the sliding member 21 from moving away from the flow channel 12, thereby preventing the locking member 20 from moving away from the flow channel 12. It should be noted that in this embodiment, the minimum distance between the inclined block 18 and the inner wall of the groove 152 is also greater than the axial length of the sliding member 21, so as to ensure the smooth movement of the sliding member 21 from the second section 154 to the first section 153, and realize the rapid transition of the two connectors 10 from the pre-sealed position to the sealed position.

[0173] like Figure 28 and 29 In the illustrated embodiment eleven, the locking member 20 includes at least two parts. One locking member 20 has a first barb 281 as a stop, and the other locking member 20 has a second barb 282 as a stop. The first barb 281 and the second barb 282 are respectively located at the ends of the locking members 20 near the flow channel 12, extending radially along the body 11 or in a direction parallel to the radial direction. The blocking part is a through groove 19 located inside the body 11, with the through direction being the same as the extension direction of the first barb 281 and the second barb 282. In the sealed position, the first barb 281 and / or the second barb 282 pass through the through groove 19 and hook each other. In this embodiment, the stop and the blocking part cooperate in such a way that the blocking part provides space so that the stop portions of the two locking members 20 hook each other, thereby fixing the two locking members 20 on the body 11 and preventing the locking members 20 from sliding away from the flow channel.

[0174] Specifically, such as Figure 28 As shown, both the first barb 281 and the second barb 282 are hook-shaped structures, located at the ends of the circumferential sides of the same locking member 20, and extending along the first radial direction. The extension lengths of the first barb 281 and the second barb 282 can be the same or different. In this embodiment, the length of the first barb 281 is greater than the length of the second barb 282. Figure 29As shown, the two ends of the through groove 19 are respectively connected to the two receiving grooves 156, and the through direction is parallel to the first radial direction. The through groove 19 is partially located within the locking area 15, and the through groove 19 also has space for the first barb 281 and the second barb 282 to hook each other. When the locking member 20 is inserted into the receiving groove 156 radially, the first barb 281 gradually approaches and penetrates one side of the through groove 19, while the second barb 282 gradually approaches and penetrates the other side of the through groove 19. In the sealed position, the first barb 281 and / or the second barb 282 penetrate the through groove 19 and hook each other. The two locking members 20 are equivalent to clamping the connector 10, thereby preventing the locking member 20 from moving away from the flow channel 12.

[0175] like Figure 30 In the illustrated embodiment 12, the stop part is a recess 26 provided on the locking member 20, and the blocking part is a protrusion 1563 provided on the main body 11. The protrusion 1563 protrudes towards the receiving groove 156. In the sealed position, the protrusion 1563 and the recess 26 are adapted to engage and cooperate with the locking plate 23 and the receiving groove 156 to fix the locking member 20 in the receiving groove 156.

[0176] The assembly process of the sterile connector assembly of this utility model embodiment is as follows: First, the two connectors 10 are axially connected so that the snap-fit ​​portion 141 and the latching portion 142 of the two connectors 10 snap into each other, and the two connectors 10 are positioned in the pre-sealed position. At this time, the elastic sealing portions 13 of the two connectors 10 are in contact with each other, and the flow channels 12 are connected to each other. Then, the sliding member 21 of the locking member 20 is inserted into the second section 154 of the slide groove 152. After confirming that the locking members 20 are connected to the locking area 15 one by one, all locking members 20 are pushed towards the center of the flow channel 12 at the same time, so that the sliding member 21 enters the first section 153 of the slide groove 152, the locking plate 23 enters the receiving groove 156, the receiving surface 157 abuts against the locking surface 231, and the two connectors 10 are fixed in the sealed position. The elastic sealing portions 13 are compressed against each other, and the flow channels 12 are sealed and connected.

[0177] like Figure 20 According to Embodiment Seven, this utility model also discloses a sterile connector, including the connector 10 of the above embodiment, and further including a sterile membrane 16. The sterile membrane 16 is radially removable from the first surface 111. Before the sterile connector reaches the pre-sealing position, the sterile membrane 16 always covers the flow channel 12 and the elastic sealing part 13. After the two sterile connectors are axially mated to the pre-sealing position, the two sterile membranes 16 abut against each other. Force is applied to the sterile membrane 16 and it is removed, so that the two elastic sealing parts 13 abut against each other, and the two flow channels 12 are connected. Figure 10The position of the bacteria isolation film 16 does not overlap with the position of the clamping piece 14, and removing the bacteria isolation film 16 does not interfere with the clamping piece 14. By setting the number and position of the clamping piece 14, the two connectors 10 also have high stability in the pre-sealing position, and even if force is applied to the main body 11 when the bacteria isolation film 16 is removed, the pre-sealing position can be maintained, and the two elastic sealing portions 13 are in contact, realizing the sealed communication of the two flow channels 12 while avoiding contact between the flow channels 12 and the outside.

[0178] As shown in Figure 22 Embodiment Seven, the main body 11 of the connector 10 is provided with four clamping pieces 14, which are two clamping portions 141 and two buckle portions 142. The clamping portions 141 and the buckle portions 142 are circumferentially spaced apart. The first clamping hooks 1412 on the two clamping portions 141 are oppositely directed in the circumferential direction. The setting direction of the buckle portion 142 is adapted to the first clamping hook 1412.

[0179] As shown in Figure 23 Embodiment Eight, the main body 11 of the connector 10 is provided with four clamping pieces 14, which are two clamping portions 141 and two buckle portions 142. The clamping portions 141 and the buckle portions 142 are circumferentially spaced apart. The first clamping hooks 1412 on the two clamping portions 141 are oppositely directed in the circumferential direction. The setting direction of the buckle portion 142 is adapted to the first clamping hook 1412.

[0180] As shown in Figures 17 to 19 Embodiment Six, the aseptic connector includes an aseptic sealing cap 30, which covers the first surface 111 of the connector 10 and forms a sealed connection. The aseptic sealing cap 30 is clamped and matched with the clamping piece 14. The aseptic sealing cap 30 functions to protect the first surface 111 of the main body 11 and the bacteria isolation film 16 covering the flow channel 12. The bacteria isolation film 16 can be accommodated in the aseptic sealing cap 30, avoiding accidental removal and causing the inside of the flow channel 12 to be in communication with the outside, resulting in pollution.

[0181] As shown in Figure 21 Embodiment Six, the aseptic sealing cap 30 is provided with an air inlet 31, and the axial projection of the air inlet 31 is located within the axial projection of the bacteria isolation film 16. The air inlet 31 functions to maintain the internal and external pressure balance when the aseptic sealing cap 30 is connected with the connector 10, especially for the bacteria isolation film 16. Avoiding the increase in pressure caused by the compression of the space when the aseptic sealing cap 30 is connected with the connector 10, which causes the bacteria isolation film 16 to be deformed or even broken, affecting the aseptic nature of the aseptic connector before use.

[0182] The connector 10 has a positioning point, and the sterile sealing cap 30 has a positioning part 32 that mates with the positioning point. The positioning point can be a snap-fit ​​part 141 on the connector 10, and the positioning part 32 is an arc-shaped block located around the sterile sealing cap 30. The first hook 1412 on the snap-fit ​​part 141 snaps into the arc-shaped block, and the arc surface of the arc-shaped block allows the first hook 1412 to easily snap into or release from the snap-fit. Through the cooperation of the positioning point and the positioning part 32, the sterile sealing cap 30 and the connector 10 are precisely aligned and securely connected. At the same time, it also makes it easier to remove the sterile sealing cap 30 from the connector 10, improving the operational efficiency when the two connectors 10 are connected. The sterile sealing cap 30 has a baffle 33 around its periphery, which extends axially, and the arc-shaped block is located on the outer peripheral surface of the baffle 33.

[0183] In some embodiments, the locking element 20 may be included in a sterile connector; in other embodiments, the locking element 20 may be sold in a separate package.

[0184] like Figure 19 In the sixth embodiment shown, the sterile connector also includes a locking member 20. The inner periphery of the sterile sealing cap 30 is provided with a clearance space 34 for accommodating the locking member 20. The locking member 20 is stored between the sterile sealing cap 30 and the connector 10, which improves the operational efficiency when the two connectors 10 are docked. There is no need to store the locking member 20 separately. The operator can use it after taking out the locking member 20 from the clearance space 34. This avoids the situation where the locking member 20 is missing when the connectors 10 are docked. The baffle 33 also forms a clearance space 34 with the body 11 of the connector 10 to accommodate the locking member 20. The clearance space 34 is adapted to the position of the receiving groove 156 on the body 11. One locking plate 23 of the locking member 20 is inserted into the receiving groove 156 on the body 11, so that the locking member 20 is fixed in the clearance space 34. In addition, the sterile sealing cap 30 is provided with a locking point 35, and the locking member 20 is provided with a recess 26. The locking point 35 and the recess 26 are adapted to engage and cooperate with the locking plate 23 and the receiving groove 156 to fix the locking member 20 in the clearance space 34.

[0185] The aseptic connector of Embodiment Six of this utility model is used as follows:

[0186] Take two sterile connectors, remove the sterile sealing cap 30, take out the locking piece 20, and then axially butt the two connectors 10 to the pre-sealing position, remove the sterile membrane 16, insert the sliding piece 21 of the locking piece 20 into the second section 154 of the sliding groove 152, and confirm that the locking piece 20 is butt jointed with the locking area 15. The above two parts can be removed in any order, that is, the sterile membrane 16 can be removed first, or the locking piece 20 can be inserted first. After the sterile membrane 16 is removed, the elastic sealing parts 13 of the two connectors 10 are in contact with each other, the flow channels 12 are in communication with each other, and all the locking pieces 20 are pushed towards the center of the flow channel 12, so that the sliding piece 21 enters the first section 153 of the sliding groove 152, the locking plate 23 enters the receiving groove 156, the receiving surface 157 abuts against the locking surface 231, and the two connectors 10 are fixed to the sealing position. The elastic sealing parts 13 are compressed with each other, and the flow channels 12 are sealed and communicated.

[0187] The above embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-substantial changes and replacements made by those skilled in the art based on the present application belong to the scope of protection required by the present application.

Claims

1. Aseptic connector assembly comprising two connectors, characterized in that, Also include locking parts; The connector comprises: A main body comprising a first surface; A flow channel extending through the main body in the axial direction from the first surface; An elastic sealing part extending continuously around the flow channel and protruding from the first surface; A clamping part for axially abutting two connectors to a pre-sealing position; And a locking area; The locking part is used to cooperate with the locking area of the two connectors, so that the two connectors are axially abutted to a sealed position, the two elastic sealing parts are compressed and tightly closed, and the two flow channels form an axially extending sealed channel; Wherein, the total number of the clamping parts in the two connectors is at least three, and the line connecting the positions of at least two clamping parts passes through the flow channel after the two connectors are axially abutted, and the angle Q formed by the line connecting the at least two clamping parts and the axis of the flow channel is 120°≤Q≤180°.

2. The aseptic connector assembly of claim 1, wherein, The clamping parts and the locking areas are distributed circumferentially.

3. The aseptic connector assembly of claim 1, wherein, In the two connectors, the number of clamping parts is four groups and the four groups of clamping parts are uniformly distributed circumferentially, the maximum circumferential distance between adjacent two clamping parts is H1, and the minimum circumferential distance between the clamping part and the adjacent locking area is H2, satisfying H1 / H2=1-6.

4. The aseptic connector assembly of claim 1, wherein, The clamping part comprises a clamping part on the main body and a buckle part matched with the clamping part, the clamping part comprises a movable part extending from the main body and a first hook at the end of the movable part; In one of the connectors, the directions of the first hooks of at least two clamping parts are opposite.

5. The aseptic connector assembly of claim 4, wherein, After the two connectors are axially abutted, the directions of the first hooks of the clamping parts of non-adjacent two clamping parts are opposite.

6. The aseptic connector assembly of claim 4, wherein, In the sealed position, the clamping part of one of the two connectors and the buckle part of the other are in a non-clamping state, and the first hook of the clamping part and the buckle part have a spacing in the axial direction.

7. The aseptic connector assembly of claim 1, wherein, In the sealed position, the axial distance between the first surfaces of the two main bodies is d1; in the pre-sealing position, the axial distance between the first surfaces of the two main bodies is d2; d1 8. The aseptic connector assembly of claim 1, wherein, In one of the connectors, the number of locking areas is at least two, and is respectively located on the radial sides of the flow channel.

9. The aseptic connector assembly of claim 1, wherein, When the two connectors are abutted to the sealed position, the radial projection of the locking part covers the elastic sealing part.

10. The aseptic connector assembly of claim 1, wherein, The locking part comprises a sliding part, and the locking area comprises a sliding part provided on the main body, the sliding part extends in the radial direction or in a direction parallel to the radial direction on the side of the main body, so that the sliding part and the sliding part extend in the radial direction or in a direction parallel to the radial direction. Sliding fit.

11. The aseptic connector assembly of claim 10, wherein, The sliding part is provided with a sliding groove extending in a direction parallel to the radial direction, and the sliding groove has a first opening facing the circumferential side of the locking part, and the sliding part and the sliding groove are connected in the radial direction.

12. The aseptic connector assembly of claim 11, wherein, The sliding groove comprises a first section close to the flow channel and a second section away from the flow channel, and the first mating gap between the first section and the sliding part is greater than the second mating gap between the second section and the sliding part. The sliding member is located in the second section in the pre-sealing position and in the first section in the sealing position.

13. The aseptic connector assembly of claim 12, wherein, The axial distance of the first section is h1, the axial distance of the second section is h2, h1 / h2 = 1-1.2; and / or, the radial length of the first section is h3, the radial length of the second section is h4, h3 / h4 = 0.3-4.

14. The aseptic connector assembly of claim 11, wherein, The sliding member has a second clearance surface at the end away from the flow channel, the second clearance surface is inclined towards the direction of the chute; the sliding member has a first clearance surface, When the locking member cooperates with the locking area, the first clearance surface and the second clearance surface are in extrusion fit, guiding the sliding member into the chute.

15. The aseptic connector assembly of claim 1, wherein, The locking area includes a receiving part on the side surface of the main body, and the locking member includes a locking part; when the two connectors are in axial abutment to form a sealing position, the locking part is in locking fit with the receiving part of the two connectors.

16. The aseptic connector assembly of claim 15, wherein, The locking part includes a locking surface, and the receiving part includes a receiving surface, the locking surface is respectively abutted to the corresponding receiving surface to form a locking fit.

17. The aseptic connector assembly of claim 16, wherein, The locking part includes two locking plates, the locking surface is located on the locking plate, the receiving part includes a receiving groove opened on the side surface of the main body, the receiving groove includes the receiving surface and a second opening on the side surface of the main body, and when the two connectors are in axial abutment to form a sealing position, the locking plate and the axial projection of the receiving groove at least partially overlap.

18. The aseptic connector assembly of claim 17, wherein, The axial distance of the receiving groove tends to decrease along the direction parallel to the radial direction from the direction close to the flow channel to the direction away from the flow channel, only in the sealing position, the locking part is entirely in the receiving groove, and the receiving surface of the receiving groove applies an axial pre-tightening force to the locking surface of the locking part.

19. The aseptic connector assembly of claim 18, wherein, The axial distance of the two locking plates is D1, the minimum axial distance of the receiving surfaces of the two axially adjacent receiving grooves is D2 when the two connectors are in the pre-sealing position, and D1 / D2 = 0.7-0.95; And / or The length of the receiving groove along the radial direction of the flow channel is L1, and the length of the locking plate along the radial direction of the flow channel is L2, L1 / L2 = 1.2-5.

20. The aseptic connector assembly of claim 18, wherein, The end of the two locking plates respectively has a third clearance surface, and the two third clearance surfaces are oppositely inclined, when the locking member cooperates with the locking area, the two third clearance surfaces are respectively in extrusion fit with the receiving part of the two connectors, guiding the locking plate into the corresponding receiving groove.

21. The aseptic connector assembly of claim 17, wherein, The locking member further includes a connecting part connecting the two locking plates, in the sealing position, the locking plate is in locking fit with the corresponding receiving groove, and the radial projection of the connecting part partially overlaps with the radial projection of the first surface of the two main bodies; The direction of the connecting line of the circumferential two ends of the connecting part is defined as the first direction, the first direction is parallel to the radial direction of the flow channel, the maximum length of the main body in the first direction is L3, the maximum length of the circumferential two ends of the connecting part in the first direction is L4, and L4 / L3 = 0.3-0.

7.

22. The aseptic connector assembly of any one of claims 1 to 4, wherein, The locking member is provided with a stopper, and the main body is provided with a blocking part, the stopper and the blocking part cooperate to prevent the locking member from sliding away from the flow channel.

23. The aseptic connector assembly of claim 22, wherein, The stopper is a barb, which is located at the end of the locking member close to the flow channel, and extends along the radial direction of the main body or a direction parallel to the radial direction, and the blocking part is a barb slot inside the main body, and in the sealing position, the barb and the barb slot are connected to each other. Alternatively, The locking member includes at least two, one of which is a first barb on the locking member, and the other is a second barb on the locking member, the first barb and the second barb are located at the end of the locking member close to the flow channel, and extend along the radial direction of the main body or a direction parallel to the radial direction, and the blocking part is a through slot inside the main body, the through direction is the same as the extension direction of the first barb and the second barb, and in the sealing position, the first barb and / or the second barb are connected to each other by penetrating into the through slot. Alternatively The stopper is a slider of the locking member, and the blocking part is a ramp provided on the sliding member of the main body, the slider and the sliding member slide together, and the ramp is arranged on the sliding path of the slider, including a guide slope and a stop surface, and in the sealing position, the slider abuts against the stop surface. Alternatively The stopper is a concave point provided on the locking member, and the blocking part is a convex point provided on the main body, and in the sealing position, the convex point and the concave point are adapted to be connected.

24. Aseptic connector characterized in that, The sterile connector assembly includes a sterile membrane radially removably connected to the first surface of the connector, covering the flow channel and the elastic sealing part, and being removed in the pre-sealing position to make the two elastic sealing parts contact and the two flow channels sealingly communicate, and the position of the sterile membrane does not overlap with the position of the clamping member.

25. The aseptic connector of claim 24, wherein, The sterile sealing cap covers the first surface of the connector and forms a sealing connection, and the sterile sealing cap is clamped with the clamping member; and / or The sterile sealing cap is provided with an air inlet, and the axial projection of the air inlet is located in the axial projection of the sterile membrane; and / or The connector is provided with a positioning point, and the sterile sealing cap is provided with a positioning part matched with the positioning point.

26. The aseptic connector of claim 25, wherein, The sterile sealing cap is further provided with a locking member, and the inner side of the periphery of the sterile sealing cap is provided with a avoiding space for accommodating the locking member; and / or, the periphery of the sterile sealing cap is provided with a baffle, which extends axially to form an avoiding space with the main body of the connector for accommodating the locking member.

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