阅读说明：本技术 一体式多通道防回流旋塞阀 (Integrated multi-channel anti-backflow plug valve ) 是由 王德伟 李春晖 赵亮 冯小斌 于 2019-10-26 设计创作，主要内容包括：本发明提供一体式多通道防回流旋塞阀,包括阀体和安装在阀体上的若干三通旋塞阀单元,阀体两端分别设置第一接口和第二接口,在三通旋塞阀单元处的阀体上设置与第一接口和第二接口垂直的旋塞阀接口,旋塞阀接口包括一个阀内套和一个阀外套,阀内套安装在阀体接口槽中,阀外套安装在阀内套外,在阀体接口槽与三通旋塞阀单元之间的阀体上设置锥台孔,在锥台孔内设置锥台塞。本发明旋塞阀使用轻松方便,且在三通内设置放(防)回流机构,使得使用更加安全；由于同时具有多通道旋塞和防回流阀的功能,特别是在临床ICU需要多通路输液时,可实现多通路平行输液或单通路输液及多点输液。(The invention provides an integrated multi-channel anti-backflow plug valve which comprises a valve body and a plurality of three-way plug valve units arranged on the valve body, wherein a first interface and a second interface are respectively arranged at two ends of the valve body, plug valve interfaces perpendicular to the first interface and the second interface are arranged on the valve body at the three-way plug valve units, each plug valve interface comprises a valve inner sleeve and a valve outer sleeve, the valve inner sleeves are arranged in valve body interface grooves, the valve outer sleeves are arranged outside the valve inner sleeves, frustum holes are formed in the valve body between the valve body interface grooves and the three-way plug valve units, and frustum plugs are arranged in the frustum holes. The plug valve is easy and convenient to use, and a backflow preventing mechanism is arranged in the tee joint, so that the plug valve is safer to use; the clinical ICU has the functions of multi-channel cock and anti-reflux valve, and may be used in multi-channel parallel transfusion, single channel transfusion and multipoint transfusion.)

1. Integral type multichannel anti-return plug valve includes valve body (1) and installs a plurality of three way plug valve units 2 on valve body (1), and valve body (1) both ends set up first interface and second interface respectively, set up on the valve body of three way plug valve unit (2) department with first interface and second interface vertically plug valve interface (3), its characterized in that: the plug valve interface (3) comprises a valve inner sleeve (31) and a valve outer sleeve (32), the valve inner sleeve (31) is installed in a valve body interface groove (33), the valve outer sleeve (32) is installed outside the valve inner sleeve (31), a frustum hole (34) is formed in the valve body (1) between the valve body interface groove (33) and the three-way plug valve unit (2), and a frustum plug (35) is arranged in the frustum hole (34).

2. The integrated multi-channel anti-backflow plug valve of claim 1, wherein: install lock cap (4) on the first interface, lock cap (4) middle part sets up plunger (41) that match with the first interface inner chamber, and the surface of first interface sets up screw and lock cap (4) internal thread cooperation locking.

3. The integrated multi-channel anti-backflow plug valve of claim 1, wherein: the second connector is provided with a sheath (5), the sheath (5) comprises a sleeve seat (51) and a sleeve cap (52), the sleeve seat (51) is sleeved on the outer wall of the second connector and locked with the outer wall through a buckle structure, the sleeve seat (51) is provided with an extension pipe (53) and a spiral pipe (54) surrounding the extension pipe, and the sleeve cap (52) is sleeved on the extension pipe (53) and locked in a spiral mode through the spiral pipe (54).

4. The integrated multi-channel anti-backflow plug valve of claim 1, wherein: three-way plug valve unit (2) are including the cock body (21), and it has three through-hole to open on the cock body (21), and cock body (21) lower part cup joints on check muscle body (22) that set up in valve body (1), and check muscle body (22) constitute by the check muscle strip that sets up a plurality of intervals equipartitions on the cylinder, also sets up check muscle strip on cock body (21) lower part inner wall, sets up recess (23) on cock body (21) lower part outer wall, sets up lug and recess (23) matching on the valve body that corresponds.

5. The integrated multi-channel anti-backflow plug valve of claim 1, wherein: the three-way valve is divided into a two-way three-way valve, a four-way three-way valve and a five-way three-way valve.

6. The integrated multi-channel anti-backflow plug valve of claim 1, wherein: the valve body (1) is also provided with a handle (6).

7. The integrated multi-channel anti-backflow plug valve of claim 6, wherein: the middle of the handle (6) is provided with a through hole.

Technical Field

The invention relates to an integrated multi-channel backflow-preventing plug valve, and belongs to the technical field of plug valves.

Background

The multi-channel stopcock valve functions to allow or block communication between drugs or liquids during infusion of the drugs or liquids into a patient. The existing multi-channel plug valve is mainly designed for intravenous infusion, ports on two sides are connected with an infusion apparatus and a needle head, and a plurality of ports on the lower part are connected with extension pipes, so that infusion of different medicines and liquids is realized. Is arranged on the pipeline of a transfusion (blood) apparatus or other medical apparatus and is used as a multi-way transfusion switch of various transfusion (blood) apparatuses and for switching the liquid medicine transportation.

Like application number 201520134030.1, disposable area microfiltration transfusion system multichannel plug valve, multichannel plug valve (2) include at least two through main line (2.1) series connection's three-way plug valve (2.2) in order, except that terminal export (2.4) of an interface conduct multichannel plug valve (2) of most terminal three-way plug valve (2.2), infusion interface (2.3) of all the other interfaces of whole three-way plug valve (2.2) all conduct multichannel plug valve (2), transfusion system (1) is connected on infusion interface (2.3) of multichannel plug valve (2). However, none of the prior art stopcocks have a backflow prevention function.

Disclosure of Invention

In order to solve the problems in the prior art, the invention aims to provide an integrated multi-channel backflow prevention plug valve.

The technical scheme adopted by the invention for solving the problems is as follows: integral type multichannel anti-return plug valve, include the valve body and install a plurality of three way plug valve units on the valve body, the valve body both ends set up first interface and second interface respectively, set up on the valve body of three way plug valve unit department with first interface and second interface vertically plug valve interface, the plug valve interface includes a valve endotheca and a valve overcoat, the valve endotheca is installed in valve body interface groove, the valve overcoat is installed outside the valve endotheca, set up the frustum hole on the valve body between valve body interface groove and three way plug valve unit, set up the frustum stopper in the frustum hole.

Furthermore, a lock cap is installed on the first interface, a plunger matched with the inner cavity of the first interface is arranged in the middle of the lock cap, and a screw is arranged on the outer surface of the first interface and is matched and locked with the inner thread of the lock cap in a screw mode.

Furthermore, install the sheath on the second interface, the sheath includes a cover seat and a cover cap, and wherein the cover seat cup joints on the second interface outer wall, and locks through a buckle structure and outer wall, sets up on the cover seat by the extension pipe with around the spiral pipe outside the extension pipe, the cover cap cup joints on the extension pipe and through spiral locking in the spiral pipe.

Further, three-way plug valve unit includes the cock body, and it has three through-hole to open on the cock body, and the cock body lower part cup joints on the check muscle body that sets up in the valve body, and the check muscle body comprises the check muscle that sets up a plurality of interval equipartitions on the cylinder, also sets up the check muscle on the inner wall of cock body lower part, sets up the recess on the outer wall of cock body lower part, sets up lug and recess matching on the valve body that corresponds.

Furthermore, the integrated multi-channel anti-backflow plug valve is divided into a two-way three-way type, a four-way three-way type and a five-way three-way type.

Furthermore, a handle is further arranged on the valve body.

Furthermore, a through hole is formed in the middle of the handle.

The beneficial technical effects of the invention are as follows: the plug valve is easy and convenient to use, and a backflow mechanism is arranged in the tee joint, so that the use is safer; the clinical ICU has the functions of multi-channel cock and anti-reflux valve, and may be used in multi-channel parallel transfusion, single channel transfusion and multipoint transfusion.

Drawings

The technical scheme of the invention is described in detail in the following with reference to the accompanying drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of an embodiment of the present invention;

figure 3 is a cross-sectional view of the three-way stopcock unit of the invention.

In the figure: 1. the plug valve comprises a valve body, a three-way plug valve unit, a plug body, a grid rib body, a groove, a plug valve connector, a valve inner sleeve, a valve outer sleeve, a valve body connector groove, 34, a frustum hole, 35, a frustum plug, a locking cap, 5, a protective sleeve, 51, a sleeve seat, 52, a sleeve cap, 53, an extension pipe, 54, a spiral pipe, 6 and a.

Detailed Description

As shown in fig. 1, 2, 3 shown integral type multichannel backflow-preventing plug valve, including valve body 1 with install a plurality of three-way plug valve unit 2 on valve body 1, 1 both ends of valve body set up first interface and second interface respectively, set up on the valve body of three-way plug valve unit 2 department with first interface and second interface vertically plug valve interface 3, plug valve interface 3 includes a valve endotheca 31 and a valve overcoat 32, valve endotheca 31 is installed in valve body interface groove 33, valve overcoat 32 is installed outside valve endotheca 31, set up frustum hole 34 on valve body 1 between valve body interface groove 33 and three-way plug valve unit 2, set up frustum stopper 35 in frustum hole 34.

The lock cap 4 is installed on the first interface, the plunger 41 matched with the inner cavity of the first interface is arranged in the middle of the lock cap 4, and the outer surface of the first interface is provided with a screw and locked with the inner thread of the lock cap 4 in a matched mode.

The sheath 5 is installed on the second connector, the sheath 5 comprises a sleeve seat 51 and a sleeve cap 52, wherein the sleeve seat 51 is sleeved on the outer wall of the second connector and is locked with the outer wall through a buckle structure, an extension pipe 53 and a spiral pipe 54 surrounding the extension pipe are arranged on the sleeve seat 51, and the sleeve cap 52 is sleeved on the extension pipe 53 and is locked in a spiral mode through the spiral pipe 54.

Three-way plug valve unit 2 includes the cock body 21, and it has three through-hole to open on the cock body 21, and cock body 21 lower part cup joints on the check muscle body 22 that sets up in valve body 1, and check muscle body 22 comprises the check muscle strip that sets up a plurality of intervals equipartitions on the cylinder, also sets up check muscle strip on the inner wall of cock body 21 lower part, sets up recess 23 on the outer wall of cock body 21 lower part, sets up the lug and matches with recess 23 on the valve body that corresponds.

The use of the lattice rib body 22 makes the rotation angle adjustable, and the conduction positioning is more accurate, and the matching of the convex block and the groove on the valve body limits the rotation process, especially the limit function when the lattice ribs inside the plug body meet with the lattice ribs on the lattice rib body.

The integrated multi-channel anti-backflow plug valve is divided into a two-way tee joint, a three-way tee joint, a four-way tee joint and a five-way tee joint.

The valve body 1 is also provided with a handle 6. The middle of the handle 6 is provided with a through hole. The valve body can be taken conveniently by arranging the handle, and the handle is convenient to hang and put through, so that the valve body is safe and sanitary.

The plug valve is easy and convenient to use, and the backflow mechanism is arranged in the tee joint, so that the use is safer; the clinical ICU has the functions of multi-channel cock and anti-reflux valve, and may be used in multi-channel parallel transfusion, single channel transfusion and multipoint transfusion.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and their concepts should be equivalent or changed within the technical scope of the present invention.