CN210020631U - Quick connector structure and infusion pipeline - Google Patents
Quick connector structure and infusion pipeline Download PDFInfo
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- CN210020631U CN210020631U CN201920543657.0U CN201920543657U CN210020631U CN 210020631 U CN210020631 U CN 210020631U CN 201920543657 U CN201920543657 U CN 201920543657U CN 210020631 U CN210020631 U CN 210020631U
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Abstract
The utility model discloses a quick connector structure and infusion pipeline, wherein, the infusion pipeline is applied to the quick connector structure, the quick connector structure includes: the liquid inlet head is provided with a liquid inlet cavity; the liquid outlet head is provided with a liquid outlet cavity; one end of the liquid inlet head is clamped with the liquid outlet head, so that the liquid inlet cavity is communicated with the liquid outlet cavity to form a liquid passing channel. The utility model provides a quick connector structure can promote infusion pipeline and connect infusion set's convenience.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to quick connector structure and infusion pipeline.
Background
Infusion lines are commonly used in the medical industry, and typically comprise one or more infusion lines, the ends of which are often connected to other infusion devices, such as one-way valves.
The port of the infusion tube in the existing infusion tube is generally connected with other infusion devices through threads, the connection mode causes the disassembly of the infusion device to be quite inconvenient, and particularly when the infusion tube is made of a softer material, the infusion device is difficult to be installed on an infusion tube or unscrewed from the infusion tube.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a quick connector structure, aims at promoting the convenience that infusion set was connected to the infusion pipeline.
In order to achieve the above object, the utility model provides a quick connector structure is applied to the infusion pipeline, quick connector structure includes:
the liquid inlet head is provided with a liquid inlet cavity;
the liquid outlet head is provided with a liquid outlet cavity;
one end of the liquid inlet head is clamped with the liquid outlet head, so that the liquid inlet cavity is communicated with the liquid outlet cavity to form a liquid passing channel communicated with the infusion pipeline.
Optionally, the liquid inlet head comprises a shell and a liquid inlet column arranged in the shell;
the liquid inlet column is provided with the liquid inlet cavity, the outer side wall of the liquid inlet column and the shell are enclosed to form an accommodating cavity, and the outer side wall of the shell is provided with a clamping interface communicated with the accommodating cavity;
the liquid outlet head comprises a liquid outlet column and a clamping assembly arranged on the outer side wall of the liquid outlet column, and the liquid outlet column is provided with a liquid outlet cavity;
when the liquid inlet head is connected with the liquid outlet head, one end of the liquid inlet column extends into the liquid outlet cavity, and the clamping component is clamped at the clamping interface to communicate the liquid inlet cavity with the liquid outlet cavity.
Optionally, the cross-sectional area of the liquid inlet column gradually decreases from the end far away from the liquid outlet column to the end close to the liquid outlet column.
Optionally, the clamping assembly comprises a clamping hook and a pressing piece;
one end of the clamping hook is connected with the liquid outlet column, and the pressing piece is arranged on one side of the clamping hook, which faces away from the liquid outlet column;
when the pressing piece is pressed, the pressing piece drives the clamping hook to deform so that the clamping hook is clamped at the clamping interface or separated from the clamping interface.
Optionally, a groove area is formed between the pressing piece and the clamping hook;
when the liquid inlet head is connected with the liquid outlet head, one end of the clamping hook, which is far away from the liquid outlet column, extends into the accommodating cavity and is clamped at the clamping interface, and the end part of the shell is positioned in the groove area.
Optionally, a reinforcing ring is arranged on the liquid outlet column adjacent to the clamping assembly, and the reinforcing ring is arranged around the outer peripheral wall of the liquid outlet column;
when the liquid inlet head is connected with the liquid outlet head, the reinforcing ring is accommodated in the accommodating cavity, and the outer side wall of the reinforcing ring is abutted to the inner side wall of the accommodating cavity.
In addition, the utility model also provides an infusion pipeline, which comprises a one-way valve and the quick connector structure;
the check valve is including dismantling last valve body and the lower valve body of connection, go up the valve body and keep away from down the one end of valve body with it connects to go out the liquid head, go up the valve body with down the valve body encloses to close and forms the intercommunication go out the sap cavity in sap cavity.
Optionally, the check valve still including hold in cross the plug of liquid intracavity, go up the valve body in cross the liquid intracavity and form a spacing step, one side of plug with spacing step butt, down the valve body towards one side of going up the valve body is formed with the convex part, the partial butt of convex part in the plug dorsad one side of spacing step.
Optionally, the limiting step is provided with a plurality of limiting blocks arranged at intervals, and the limiting blocks and the limiting step enclose a limiting area;
the rubber plug is accommodated and limited in the limiting area.
Optionally, the lower valve body is provided with a transfusion cavity, one side of the lower valve body facing the upper valve body is provided with a liquid passing port communicated with the transfusion cavity, and the transfusion cavity is communicated with the liquid passing cavity through the liquid passing port.
The technical proposal of the utility model is that a liquid inlet head is arranged in the transfusion pipeline, one end of the liquid inlet head is provided with a liquid outlet head which can be externally connected with a transfusion device, and the liquid outlet head is connected with the liquid inlet head through a clamping joint. When the liquid outlet head is connected with the liquid inlet head, the liquid outlet cavity of the liquid outlet head is communicated with the liquid inlet cavity of the liquid inlet head to form a liquid passing channel, and liquid in the infusion pipeline can flow into the infusion device through the liquid passing channel to realize infusion. When needing to install or dismantle this infusion set, need not dismantle this infusion set from infusion pipeline alone, only need with go out the liquid head from the inlet head dismantle can, go out the liquid head and greatly made things convenient for infusion set's in the infusion pipeline installation and dismantlement with the joint mode of inlet head, promoted infusion set's arbitrary infusion set's of transfer line connection convenience.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic cross-sectional structure diagram of the quick connector structure of the present invention;
FIG. 2 is an exploded view of the quick connector structure of the present invention;
FIG. 3 is a schematic structural view of the liquid inlet head in FIG. 1 or FIG. 2;
FIG. 4 is a schematic structural view of the liquid outlet head in FIG. 1 or FIG. 2;
FIG. 5 is a schematic structural view of the upper valve body of FIG. 1 or FIG. 2;
FIG. 6 is a schematic structural view of the lower valve body in FIG. 1 or FIG. 2;
FIG. 7 is a schematic cross-sectional view of the check valve of FIG. 1 or FIG. 2;
FIG. 8 is a schematic view of the structure of the infusion pipeline of the present invention.
The reference numbers illustrate:
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
In the embodiment of the present invention, referring to fig. 1 and shown in fig. 2, the quick connector structure includes: the liquid inlet head 1, the liquid inlet head 1 forms a liquid inlet cavity 121; the liquid outlet head 2 is provided with a liquid outlet cavity 211; one end of the liquid inlet head 1 is clamped with the liquid outlet head 2, so that the liquid inlet cavity 121 is communicated with the liquid outlet cavity 211 to form a liquid channel connected with the infusion pipeline.
Wherein, the shape of the liquid inlet head 1 and the liquid outlet head 2 can be various, such as cylindrical, truncated cone and the like. The liquid inlet head 1 and the liquid outlet head 2 may be made of semi-rigid material, such as plastic, PC (Polycarbonate), etc., which have certain flexibility, are not easy to deform, are corrosion resistant, and are easy to machine and mold.
The liquid inlet head 1 is used for connecting a liquid conveying pipe in a liquid conveying pipeline, and the liquid outlet head 2 is used for being externally connected with a liquid conveying device. The liquid inlet head 1 is provided with a first opening communicated with the liquid inlet cavity 121, and a liquid conveying pipe in the liquid conveying pipeline is connected to the first opening of the liquid inlet head 1, so that liquid in the liquid conveying pipe can enter the liquid inlet cavity 121 through the first opening. The liquid outlet head 2 is provided with a second opening communicated with the liquid outlet cavity 211, and the infusion device is connected to the second opening of the liquid outlet head 2, so that the liquid in the liquid outlet cavity 211 can enter the infusion device through the second opening. Therefore, the liquid flowing from the liquid conveying pipe to the liquid conveying device can be realized through the liquid inlet head 1 and the liquid outlet head 2.
The liquid inlet cavity 121 and the liquid outlet cavity 211 are used for flowing liquid, and the liquid inlet cavity 121 and the liquid outlet cavity 211 are provided with cavity openings which are communicated with each other, so that the liquid inlet cavity 121 and the liquid outlet cavity 211 are communicated to form a liquid passing channel. The liquid passing channel is communicated with the infusion tube and the infusion device, so that the liquid in the infusion tube can flow into the infusion device through the liquid passing channel.
One end of the liquid inlet head 1 is connected with the infusion tube, the other end of the liquid inlet head 1 is clamped with the liquid outlet head 2, the clamping mode can be realized by arranging a male buckle on one of the liquid inlet head 1 and the liquid outlet head 2, arranging a female buckle corresponding to the clamping block on the other of the liquid inlet head 1 and the liquid outlet head 2, and buckling the male buckle and the female buckle; or, the hook 221 is arranged on one of the liquid inlet head 1 and the liquid outlet head 2, and the fixture block or the bayonet corresponding to the hook 221 is arranged on the other of the liquid inlet head 1 and the liquid outlet head 2, and the hook 221 and the fixture block or the bayonet are matched to realize the purpose; and those skilled in the art will understand that the clamping manner between the liquid inlet head 1 and the liquid outlet head 2 is not limited to the above two manners.
This embodiment scheme is through setting up into liquid head 1 in the infusion pipeline, but sets up the play liquid head 2 of external infusion set in the one end of liquid head 1 to make play liquid head 2 be connected with liquid head 1 through the mode of joint. When the liquid outlet head 2 is connected with the liquid inlet head 1, the liquid outlet cavity 211 of the liquid outlet head 2 is communicated with the liquid inlet cavity 121 of the liquid inlet head 1 to form a liquid passing channel, and liquid in the infusion pipeline can flow into the infusion device through the liquid passing channel to realize infusion. When this infusion set is installed or dismantled to needs, need not dismantle this infusion set from infusion pipeline alone, only need with go out liquid head 2 from the feed liquor head 1 dismantle can, go out liquid head 2 and the joint mode of feed liquor head 1 and greatly made things convenient for infusion set's installation and dismantlement in the infusion pipeline, promoted the convenience that arbitrary infusion set was connected to the transfer line.
Alternatively, referring to fig. 1 in combination with fig. 2, the liquid inlet head 1 comprises a housing 13 and a liquid inlet column 12 arranged in the housing 13; the liquid inlet column 12 is provided with a liquid inlet cavity 121, the outer side wall of the liquid inlet column 12 and the shell 13 enclose to form an accommodating cavity 11, and the outer side wall of the shell 13 is provided with a clamping interface 111 communicated with the accommodating cavity 11; the liquid outlet head 2 comprises a liquid outlet column 21 and a clamping assembly 22 arranged on the outer side wall of the liquid outlet column 21, and the liquid outlet column 21 is provided with a liquid outlet cavity 211; when the liquid inlet head 1 is connected with the liquid outlet head 2, one end of the liquid inlet column 12 extends into the liquid outlet cavity 211, and the clamping component 22 is clamped at the clamping interface 111 to communicate the liquid inlet cavity 121 and the liquid outlet cavity 211.
In the present embodiment, the shape of the housing 13 may be various, such as a cylindrical shape, a truncated cone shape, and the like. The housing 13 may be made of a semi-rigid material, such as plastic, PC material, etc., which has flexibility, is not easily deformed, is corrosion resistant, and is easily formed.
The liquid inlet column 12 and the liquid outlet column 21 may be hollow cylinders, the liquid inlet column 12 and the liquid outlet column 21 may be made of semi-rigid material, such as plastic, PC material, etc., and the liquid inlet column 12 and the housing 13 may be integrally formed or may be separately formed and then connected by bonding, hot pressing, etc.
The clamping component 22 is used for matching with the clamping interface 111 to clamp the liquid inlet head 1 and the liquid outlet head 2. The clamping component 22 can have various structures, for example, the clamping component 22 can be a structural member with a clamping hook, and the clamping of the liquid inlet head 1 and the liquid outlet head 2 is realized through the limit matching of the clamping hook and the clamping interface 111; the clamping assembly 22 may also be a structural member with a protrusion, and the protrusion is in limit fit with the clamping interface 111 to realize clamping of the liquid inlet head 1 and the liquid outlet head 2, which is not limited herein.
The liquid inlet column 12 has a first opening (not shown) communicated with the liquid inlet cavity 121, the liquid outlet column 21 has a second opening (not shown) communicated with the liquid outlet cavity 211, and when the liquid inlet head 1 is connected with the liquid outlet head 2, one end of the liquid inlet column 12 passes through the second opening and then extends into the liquid outlet cavity 211 of the liquid outlet column 21, so that the liquid inlet cavity 121 is communicated with the liquid outlet cavity 211 to form a liquid passing channel.
Alternatively, referring to FIG. 1 in conjunction with FIG. 2, the cross-sectional area of the fluid inlet column 12 decreases from the end distal from the fluid outlet column 21 to the end proximal to the fluid outlet column 21.
In this embodiment, the cross-sectional area of the liquid inlet column 12 gradually decreases from the end far away from the liquid outlet column 21 to the end close to the liquid outlet column 21, so that the end with the smaller cross-sectional area of the liquid inlet column 12 can extend into the liquid outlet cavity 211 of the liquid outlet column 21 and abut against the inner side wall of the liquid outlet cavity 211, thereby improving the tightness of the fit between the liquid inlet column 12 and the liquid outlet column 21, forming a sealing fit between the liquid inlet column 12 and the liquid outlet column 21, and ensuring that liquid cannot leak out in the process of flowing into the liquid inlet cavity 121 from the liquid passing cavity 33.
Alternatively, referring to fig. 4 in combination with fig. 1 and 2, the clip assembly 22 includes a hook 221 and a pressing member 222; one end of the hook 221 is connected with the liquid outlet column 21, and the pressing piece 222 is arranged on one side of the hook 221, which is back to the liquid outlet column 21; when the pressing member 222 is pressed, the pressing member 222 drives the hook 221 to deform, so that the hook 221 is clamped at the card interface 111 or separated from the card interface 111.
In this embodiment, the liquid outlet head 2 is connected to the liquid outlet head 2 by the cooperation of the hook 221 and the connecting port 111. The material of the hook 221 and the pressing member 222 can be various, such as plastic, PC material, etc., and the hook 221 and the pressing member 222 can be disposed in an "L" shape. One end of the hook 221 is connected with the liquid outlet column 21, one end of the hook 221 far away from the liquid outlet column 21 is formed with a hook mouth, and one end of the hook 221 far away from the liquid outlet column 21 can be close to or far away from the liquid outlet column 21, so that the hook mouth is close to or far away from the liquid outlet column 21. When pressing down pothook 221, pothook 221 drives the hook mouth to be close to and move out liquid column 21, and when the end was to pressing down of pothook 221, pothook 221 was close to and goes out liquid column 21 and moves to can make pothook 221 joint in joint mouth 111 department through pressing down pressing piece 222, perhaps break away from with joint mouth 111, with the swift plug of realization liquid outlet head 2 on liquid inlet head 1, also realized swift installation and the dismantlement of infusion set in the infusion pipeline. The pressing piece 222 is provided to facilitate the pressing of the hook 221.
Optionally, referring to fig. 4 in combination with fig. 1 and 2, a groove 24 is formed between the pressing piece 222 and the hook 221; when the liquid inlet head 1 is connected with the liquid outlet head 2, one end of the hook 221, which is far away from the liquid outlet column 21, extends into the accommodating cavity 11 and is clamped at the clamping interface 111, and the end part of the shell 13 is positioned in the groove area 24.
In this embodiment, the hook 221 includes a connecting portion connected to the liquid outlet column 21, and a clamping portion connected to an end of the connecting portion away from the liquid outlet column 21, and the connecting portion and the clamping portion are disposed at an included angle, so that the hook 221 is disposed in an "L" shape.
The pressing member 222 includes a supporting portion connected to one side of the liquid outlet column 21 opposite to the fastening portion, and a pressing portion connected to one end of the supporting portion far away from the fastening portion, the supporting portion and the pressing portion are disposed at an included angle, so that the supporting portion of the pressing member 222, the pressing portion and the fastening portion of the fastening hook 221 are enclosed to form the groove area 24.
When liquid inlet head 1 is connected with liquid outlet head 2, the tip of casing 13 is located groove area 24, and the supporting part of pressing piece 222 is located the casing 13 outside, and the joint portion of pothook 221 at least partially holds in holding chamber 11 to through pressing piece 222, make joint portion break away from joint mouth 111 after being close to out the activity of liquid column 21, perhaps make joint portion joint in joint mouth 111 department.
Optionally, referring to fig. 4 in combination with fig. 1, the liquid outlet column 21 is provided with a reinforcing ring 23 adjacent to the clamping assembly 22, and the reinforcing ring 23 is disposed around the outer circumferential wall of the liquid outlet column 21; when liquid inlet head 1 is connected with liquid outlet head 2, reinforcing ring 23 is accommodated in accommodating cavity 11, and the outer side wall of reinforcing ring 23 is abutted against the inner side wall of accommodating cavity 11.
In this embodiment, an opening for the liquid column 21 to enter is opened at one end of the housing 13, and the shape of the reinforcing ring 23 matches the shape of the opening, for example, when the opening is circular, the reinforcing ring 23 is a circular ring. The material of the reinforcement ring 23 may be a semi-rigid material, such as plastic, PC material, etc., which has certain flexibility, is not easy to deform, is corrosion resistant, and is easy to machine. The reinforcing ring 23 may be formed integrally with the liquid outlet column 21, or may be formed separately from the liquid outlet column 21 and then connected to the liquid outlet column 21 by bonding, thermocompression bonding, or the like.
The beaded finish 23 can pass in foretell opening entering holds chamber 11, the periphery wall of beaded finish 23 with hold the inside wall butt in chamber 11 to the one end that makes out the liquid column 21 be close to beaded finish 23 is passed through the beaded finish 23 and is spacing in holding chamber 11, with this, can strengthen out liquid column 21 and casing 13 complex compactness, prevent into liquid head 1 and play liquid head 2 and be connected after, appear out the phenomenon that liquid column 21 is not hard up or rocks.
The utility model also provides an infusion pipeline, which is shown in the figure 8 and the figures 1 and 2, and comprises a check valve 3 and the quick connector structure in the embodiment; the check valve 3 comprises an upper valve body 31 and a lower valve body 32 which are detachably connected, one end of the upper valve body 31, which is far away from the lower valve body 32, is connected with the liquid outlet head 2, and the upper valve body 31 and the lower valve body 32 enclose a liquid passing cavity 33 which is communicated with the liquid outlet cavity 211. The specific structure of the quick connector structure refers to the above embodiments, and the infusion pipeline adopts all the technical schemes of all the above embodiments, so that the quick connector structure at least has all the beneficial effects brought by the technical schemes of the above embodiments, and further description is omitted.
The shapes of the upper valve body 31 and the lower valve body 32 can be various, such as a cylindrical shape, a truncated cone shape, and the like. The upper valve body 31 and the lower valve body 32 may be made of semi-rigid material, such as plastic, PC material, etc., which has certain flexibility, is not easy to deform, is corrosion resistant, and is easy to machine and form. The upper valve body 31 or the lower valve body 32 is formed with a cavity structure, so that when the upper valve body 31 is connected with the lower valve body 32, the upper valve body 31 and the lower valve body 32 enclose to form a liquid passing cavity 33.
The upper valve body 31 is directly connected with the liquid outlet head 2 or is connected with the liquid outlet head 2 through a connecting pipe, the liquid passing cavity 33 is communicated with the liquid outlet cavity 211, and liquid in the liquid outlet cavity 211 directly enters the liquid passing cavity 33 or enters the one-way valve 3 through the connecting pipe structure so as to be infused into the one-way valve 3 through the quick-insertion joint structure.
The detachable connection of the upper valve body 31 and the lower valve body 32 facilitates the installation of the upper valve body 31 or the lower valve body 32 on the quick-connect structure or the detachment from the quick-connect structure, thereby conveniently replacing or cleaning the upper valve body 31 and the lower valve body 32.
Optionally, referring to fig. 5 in combination with fig. 1, 2 and 7, the check valve 3 further includes a rubber plug 34 accommodated in the liquid passing chamber 33, the upper valve body 31 forms a limiting step 311 in the liquid passing chamber 33, one side of the rubber plug 34 abuts against the limiting step 311, one side of the lower valve body 32 facing the upper valve body 31 forms a protrusion 321, and a portion of the protrusion 321 abuts against a side of the rubber plug 34 facing away from the limiting step 311.
In this embodiment, the liquid passing cavity 33 is formed in the upper valve body 31, the limiting step 311 divides the liquid passing cavity 33 into a first cavity and a second cavity, the limiting step 311 is provided with a through hole communicated with the first cavity and the second cavity, and the rubber plug 34 is arranged in the second cavity and covers the through hole. The rubber plug 34 may be made of various materials, such as silica gel, rubber, etc. The liquid outlet cavity 211 is communicated with the first cavity, after liquid in the liquid outlet cavity 211 enters the first cavity, the rubber plug 34 is impacted and extruded, the edge part of the rubber plug 34 is far away from the limiting step 311, so that a gap for circulating liquid is formed between the rubber plug 34 and the limiting step 311, and the liquid in the first cavity flows into the second cavity through the gap. If the adverse current appears during the infusion, in other words liquid flows into the second chamber from the second chamber, liquid accumulates and extrudes plug 34 in the second chamber this moment, makes plug 34 laminate with spacing step 311 mutually to the separation liquid makes the liquid in the second chamber can not get into first chamber, with this, has realized the one-way circulation of liquid in check valve 3.
The protrusion 321 may be made of various materials, such as plastic, PC material, etc., and the protrusion 321 may be integrally formed with the lower valve body 32, or may be formed separately from the lower valve body 32 and then combined and connected together by bonding or thermal bonding. The abutting part of the convex part 321 and the rubber plug 34 is just opposite to the opening of the through hole, so that the rubber plug 34 can cover the through hole, and when liquid in the first chamber impacts the rubber plug 34 through the through hole, a gap for liquid circulation can be formed between the rubber plug 34 and the opening of the through hole.
Optionally, referring to fig. 5 in combination with fig. 1 and fig. 2, the limiting step 311 is provided with a plurality of limiting blocks 3111 arranged at intervals, and the limiting blocks 3111 and the limiting step 311 enclose a limiting area 3112; the rubber plug 34 is received and retained in the retaining area 3112.
In this embodiment, the material of the stopper 3111 may be various, such as plastic, PC material, etc. The stopper 3111 and the stopper step 311 may be integrally formed, or may be separately processed and then combined and connected together by bonding or thermal bonding. When the plug 34 holds and is spacing in spacing district 3112, the periphery department and the stopper 3111 looks butt of plug 34 to carry on spacingly through a plurality of stoppers 3111 to plug 34, guaranteed that check valve 3 can not appear shifting when using, avoid check valve 3 to appear using unusually.
Optionally, referring to fig. 6, and as shown in fig. 1, fig. 2 and fig. 7, the lower valve body 32 has an infusion cavity 322, a liquid passing port 323 communicating with the infusion cavity 322 is opened on a side of the lower valve body 32 facing the upper valve body 31, and the infusion cavity 322 communicates with the liquid passing cavity 33 through the liquid passing port 323.
In this embodiment, the liquid in the liquid passing cavity 33 can enter the infusion cavity 322 through the liquid passing port 323, and one end of the check valve 3 away from the liquid outlet column 21 can be connected to an infusion device such as an infusion needle, so that the liquid can continuously flow into the infusion device through the infusion cavity 322 to realize infusion.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made by the contents of the specification and the drawings under the inventive concept of the present invention, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. The utility model provides a quick connector structure, is applied to the infusion pipeline, its characterized in that, quick connector structure includes:
the liquid inlet head is provided with a liquid inlet cavity;
the liquid outlet head is provided with a liquid outlet cavity;
one end of the liquid inlet head is clamped with the liquid outlet head, so that the liquid inlet cavity is communicated with the liquid outlet cavity to form a liquid passing channel communicated with the infusion pipeline.
2. The quick-connect coupling structure of claim 1, wherein the liquid inlet coupling comprises a housing and a liquid inlet column disposed within the housing;
the liquid inlet column is provided with the liquid inlet cavity, the outer side wall of the liquid inlet column and the shell are enclosed to form an accommodating cavity, and the outer side wall of the shell is provided with a clamping interface communicated with the accommodating cavity;
the liquid outlet head comprises a liquid outlet column and a clamping assembly arranged on the outer side wall of the liquid outlet column, and the liquid outlet column is provided with a liquid outlet cavity;
when the liquid inlet head is connected with the liquid outlet head, one end of the liquid inlet column extends into the liquid outlet cavity, and the clamping component is clamped at the clamping interface to communicate the liquid inlet cavity with the liquid outlet cavity.
3. The quick-connect coupling structure of claim 2, wherein the cross-sectional area of the fluid inlet column decreases from the end distal to the fluid outlet column to the end proximal to the fluid outlet column.
4. The quick connector structure as claimed in claim 2, wherein the snap-fit assembly includes a hook and a press member;
one end of the clamping hook is connected with the liquid outlet column, and the pressing piece is arranged on one side of the clamping hook, which faces away from the liquid outlet column;
when the pressing piece is pressed, the pressing piece drives the clamping hook to deform so that the clamping hook is clamped at the clamping interface or separated from the clamping interface.
5. The quick connector structure as claimed in claim 4, wherein a groove is formed between the pressing member and the hook;
when the liquid inlet head is connected with the liquid outlet head, one end of the clamping hook, which is far away from the liquid outlet column, extends into the accommodating cavity and is clamped at the clamping interface, and the end part of the shell is positioned in the groove area.
6. The quick connector structure as claimed in any one of claims 2 to 5, wherein the liquid outlet column is provided with a reinforcing ring adjacent to the clamping assembly, the reinforcing ring being disposed around the outer peripheral wall of the liquid outlet column;
when the liquid inlet head is connected with the liquid outlet head, the reinforcing ring is accommodated in the accommodating cavity, and the outer side wall of the reinforcing ring is abutted to the inner side wall of the accommodating cavity.
7. An infusion line comprising a one-way valve and a quick connector structure as claimed in any one of claims 1 to 6;
the check valve is including dismantling last valve body and the lower valve body of connection, go up the valve body and keep away from down the one end of valve body with it connects to go out the liquid head, go up the valve body with down the valve body encloses to close and forms the intercommunication go out the sap cavity in sap cavity.
8. The infusion tube of claim 7, wherein the one-way valve further comprises a rubber plug accommodated in the fluid passing cavity, the upper valve body forms a limiting step in the fluid passing cavity, one side of the rubber plug abuts against the limiting step, one side of the lower valve body facing the upper valve body forms a convex part, and the convex part partially abuts against one side of the rubber plug facing away from the limiting step.
9. The infusion pipeline according to claim 8, wherein the limiting step is provided with a plurality of limiting blocks arranged at intervals, and the limiting blocks and the limiting step are enclosed to form a limiting area;
the rubber plug is accommodated and limited in the limiting area.
10. The infusion pipeline according to any one of claims 7 to 9, wherein the lower valve body has an infusion chamber, a liquid passing port communicating with the infusion chamber is opened on a side of the lower valve body facing the upper valve body, and the infusion chamber is communicated with the liquid passing chamber through the liquid passing port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920543657.0U CN210020631U (en) | 2019-04-18 | 2019-04-18 | Quick connector structure and infusion pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920543657.0U CN210020631U (en) | 2019-04-18 | 2019-04-18 | Quick connector structure and infusion pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210020631U true CN210020631U (en) | 2020-02-07 |
Family
ID=69360814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920543657.0U Active CN210020631U (en) | 2019-04-18 | 2019-04-18 | Quick connector structure and infusion pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210020631U (en) |
-
2019
- 2019-04-18 CN CN201920543657.0U patent/CN210020631U/en active Active
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