CN214550496U - Large-traffic no needle glue valve connects - Google Patents

Abstract

The utility model relates to the field of medical supplies, a large-traffic no adhesive valve connects is disclosed. This connect including rubber valve, shell and retaining ring, retaining ring includes annular base and a plurality of arc curb plate, arc curb plate fixed connection on annular base internal diameter, be equipped with arc supporting platform on the internal diameter of arc curb plate, arc supporting platform supports rubber valve upper portion, retaining ring pegs graft with the shell, this retaining ring can effectively fix the rubber valve, prevents the upper and lower displacement that the rubber valve pressurized arouses, makes things convenient for the production equipment, increases the medicine flow simultaneously. The needleless connector is mainly used for transfusion and other conditions, and can effectively avoid the safety problem caused by using glue to install the glue valve and the problem that the glue valve falls off and the connector loses effect.

Description

Large-traffic no needle glue valve connects

Technical Field

The utility model relates to the field of medical supplies, especially, relate to a large-traffic no adhesive valve connects.

Background

In recent years, with the innovation and development of technology, various types of infusion joints full of Linglan and emphasizing on safe injection without needles have been introduced. Needle-free infusion connectors have also gone through previous blunt needle designs, complex mechanical valves to today's simple and transparent positive pressure needle-free connectors. In the prior art, the inside gluey valve of needleless connector generally adopts glue to fix, even adopt medical glue to also have some potential safety hazards on the one hand, on the other hand glue can be because the medicine soaks, loses viscidity and receives too big glue valve that leads to of pressure to drop again to lose the original function of syringe needle, the needleless connector of glue connection still has the problem of assembling the difficulty simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem: the needle-free joint with the stable connection of the rubber valve and the shell solves the problems that the rubber valve falls off and the needle-free joint is difficult to assemble.

In order to solve the above problem, the utility model provides a following technical scheme: the large-flow needle-free glue valve joint comprises a glue valve and a shell;

the rubber valve comprises a small disc, a large disc and a connecting block, wherein one end of the connecting block is connected with the small disc, the other end of the connecting block is connected with the large disc, the small disc and the connecting block are coaxial, a liquid channel penetrating through the large disc, the small disc and the connecting block along the axial direction is arranged in the rubber valve, and the liquid channel is closed when not stressed;

the shell comprises an upper shell and a lower shell, the upper shell comprises an upper half part and a lower half part, the radius of the upper half part is smaller than that of the lower half part, the upper half part and the lower half part are coaxially and fixedly connected, an annular check ring is arranged on the inner wall of an upper port of the upper half part, an annular slot is arranged on an upper port of the lower shell, a liquid outlet is arranged at the bottom of the lower shell, and the annular slot is spliced with the bottom of the upper shell;

the needleless connector also comprises a fixed check ring, the fixed check ring comprises an annular base and a plurality of arc-shaped side plates, the arc-shaped side plates are fixedly connected to the inner diameter of the annular base, the inner diameter of each arc-shaped side plate is provided with an arc-shaped supporting platform, the arc-shaped side plates are inserted into the upper half part of the upper shell, and the annular base is positioned in the lower half part; the rubber valve is installed in the upper shell, the edge of the small disk is fixed to the upper portion and the lower portion of the edge of the small disk through the annular retaining ring and the arc-shaped supporting platform respectively, and the edge of the large disk is fixed to the upper portion and the lower portion of the edge of the small disk through the annular base and the upper end opening of the lower shell respectively.

Furthermore, the lower shell also comprises an annular sealing column which is propped against the lower part of the edge of the large disc.

Furthermore, the lower surface of the annular retainer ring is provided with an annular clamping hook, the edge of the upper surface of the small circular disc is provided with a clamping groove corresponding to the annular clamping hook, and the annular clamping hook is mutually meshed with the clamping groove.

Furthermore, an annular gap is reserved between the outer diameter surface of the small circular disc and the inner wall of the upper shell.

Furthermore, the edge of the large disc is provided with a downward folded edge, and the folded edge is positioned in the annular slot.

Furthermore, a guide concave surface is arranged at the center of the top surface of the small circular disc, and valve core extension sections are respectively arranged on two sides of the outlet end of the liquid channel to form a duckbill valve.

Furthermore, the bottom surface of the lower shell is a concave surface, and the liquid outlet is positioned in the center of the concave surface.

Furthermore, the upper half part of epitheca be equipped with the exhaust through-hole, the last port outer wall be equipped with the external screw thread.

The utility model has the advantages that:

1. the large-flow needle-free glue valve joint has the advantages that the glue valve is fixed through the fixing retaining ring, the vertical displacement of the glue valve can be effectively prevented, the production and the assembly are more convenient, and the medicine flow is increased. The fixed check ring can be opened and closed in a micro-scale manner, the syringe can be conveniently inserted when the fixed check ring is opened, and the effect of preventing liquid backflow can be effectively increased when the fixed check ring is closed.

2. By additionally arranging the annular seal on the lower shell, the medicine can be effectively prevented from flowing out from the side surface of the rubber valve.

3. The rubber valve is connected with the upper shell through the clamping hook, so that the rubber valve can be prevented from moving downwards due to the insertion of the injector, and meanwhile, the cleaning of the inlet end face can be facilitated.

4. Leave annular clearance between small circle dish external diameter face and epitheca inner wall, when the rubber valve pressurized of being convenient for, can outwards extend all around to open liquid passage.

5. Through set up the direction concave surface at small circle dish top, can the person of facilitating the use operation, be favorable to the liquid inflow simultaneously.

6. Through setting the lower casing bottom surface to the concave surface, reach and connect interior medicine make full use of, not remaining effect.

7. Through set up duckbill valve at the fluid passage exit end, prevent that medicine from backflushing out fluid passage, avoid the medicine backward flow.

8. The large-flow needle-free glue valve joint assembled by the assembling method provided by the utility model can realize automatic installation.

Drawings

FIG. 1 is a sectional view of an embodiment.

Reference numbers in the figures: glue valve 1, small circle dish 11, big disc 12, connecting block 13, fluid passage 14, epitheca 21, inferior valve 22, annular retaining ring 23, retaining ring 3, annular slot 24, annular trip 25, annular sealed post 26, duckbill valve 27, retaining ring 3, annular base 31, arc curb plate 32, arc supporting platform 33.

Detailed Description

As shown in fig. 1, the present embodiment provides a large flow needleless glue valve connector, which includes a glue valve 1, a housing and a retainer ring 3.

The rubber valve 1 comprises a small disc 11, a large disc 12 and a connecting block 13, wherein one end of the connecting block 13 is connected with the small disc 11, the other end of the connecting block 13 is connected with the large disc 12, and the three are coaxial. A liquid channel 14 which penetrates through the large circular disc 12, the small circular disc 11 and the connecting block 13 along the axial lead direction is arranged in the rubber valve 1, the liquid channel 14 is closed when not stressed, and valve core extension sections are respectively arranged on two sides of an outlet end to form a duckbill valve 27. The center of the top surface of the small disc 11 is provided with a guide concave surface, the edge of the small disc is provided with a clamping groove, and the edge of the large disc is provided with a downward folded edge.

The shell includes epitheca 21, inferior valve 22, and epitheca 21 includes first and lower half, and first radius is less than the lower half, and first and lower half coaxial line fixed connection, the upper end inner wall of first is equipped with annular retaining ring 23, and the outer wall is equipped with the external screw thread, and annular retaining ring 23 lower surface is equipped with annular trip 25. The upper port of the lower shell 22 is provided with an annular slot 24, the bottom is provided with a liquid outlet, and an annular sealing column 26 is arranged inside. The bottom surface of the lower shell 22 is a concave surface, and the liquid outlet is positioned at the center of the concave surface. The lower shell 22 may be circular or oval, the circular lower shell can be conveniently assembled and produced, and the oval lower shell has good hand feeling and can be operated by a user conveniently. The upper half of epitheca 21 is equipped with two exhaust through holes that correspond, and when the syringe inserted into, silica gel inner chamber volume grow, and the air in the space between the shell is compressed, syringe male resistance increase, and the through-hole can effectively reduce these resistances.

Retaining ring 3 includes annular base 31 and a plurality of arc curb plate 32, and arc curb plate 32 fixed connection is equipped with arc supporting platform 33 on the internal diameter of arc curb plate 32 on the internal diameter of annular base 31.

The needleless connector has the following connection relationship from top to bottom: annular trip 25 and draw-in groove interlock each other, and little disc 11 edge is fixed through annular retaining ring 23 and arc supporting platform 33 respectively from top to bottom, and there is annular space small disc and shell edge. The edge of the large disc 12 is fixed up and down through the annular base 31 and the upper port of the lower shell 22, and the annular sealing column 26 is pressed against the lower part of the edge of the large disc 12. The arc-shaped side plate 32 is inserted into the upper half part of the upper shell 21, the annular base 31 is positioned in the lower half part, and the glue valve 1 is installed in the upper shell 21. The annular slot 24 is inserted into the bottom of the upper shell 21, and the folded edge is positioned in the annular slot 24.

When the needleless connector is used, the injector leads the concave surface through extrusion, so that the liquid channel is opened, and the liquid medicine flows out of the liquid outlet through the liquid channel.

The assembling method of the needleless connector comprises the following steps:

firstly, inserting the rubber valve 1 into an annular base 31 of a fixed retainer ring 3 until the fixed retainer ring 3 is positioned between a small circular disc 11 and a large circular disc 12;

secondly, inserting the arc-shaped side plate 32 of the fixed retainer ring 3 into the upper half part of the upper shell 21;

and thirdly, inserting the annular slot 24 of the lower shell 22 into the upper shell 21.

Claims (8)

1. A large-flow needle-free glue valve joint comprises a glue valve (1) and a shell;

the rubber valve (1) comprises a small disc (11), a large disc (12) and a connecting block (13), one end of the connecting block (13) is connected with the small disc (11), the other end of the connecting block is connected with the large disc (12), the small disc (11) and the connecting block (13) are coaxial, a liquid channel (14) which penetrates through the large disc (12), the small disc (11) and the connecting block (13) along the axial direction is arranged in the rubber valve (1), and the liquid channel (14) is closed when not stressed;

the shell comprises an upper shell (21) and a lower shell (22), the upper shell (21) comprises an upper half part and a lower half part, the radius of the upper half part is smaller than that of the lower half part, the upper half part and the lower half part are coaxially and fixedly connected, an annular check ring (23) is arranged on the inner wall of an upper port of the upper half part, an annular slot (24) is arranged at an upper port of the lower shell (22), a liquid outlet is arranged at the bottom of the lower shell, and the annular slot (24) is spliced with the bottom of the upper shell (21);

the needle-free joint is characterized by further comprising a fixed retainer ring (3), wherein the fixed retainer ring (3) comprises an annular base (31) and a plurality of arc-shaped side plates (32), the arc-shaped side plates (32) are fixedly connected to the inner diameter of the annular base (31), and arc-shaped supporting platforms (33) are arranged on the inner diameter of the arc-shaped side plates (32);

arc curb plate (32) insert in the first half of epitheca (21), annular base (31) be located the lower half, gluey valve (1) install in epitheca (21), little disc (11) edge fixed through annular retaining ring (23) and arc support platform (33) respectively from top to bottom, the edge of big disc (12) fixed through annular base (31) and inferior valve (22) upper end mouth respectively from top to bottom.

2. The high flow needleless valve connector of claim 1, wherein the lower housing (22) further comprises an annular sealing post (26), the annular sealing post (26) resting below the edge of the large disk (12).

3. The large-flow needle-free glue valve joint according to claim 1 or 2, wherein the annular retainer ring (23) is provided with an annular hook (25) on the lower surface, the small disc (11) is provided with a slot corresponding to the annular hook (25) on the edge of the upper surface, and the annular hook (25) and the slot are engaged with each other.

4. The high-flow needleless valve connector of claim 3, characterized in that an annular gap is left between the outer diameter surface of the small disk (11) and the inner wall of the upper shell (21).

5. The high flow needleless valve connector of claim 1 or 2, wherein the edge of the large disk (12) is provided with a downward flange, and the flange is positioned in the annular slot (24).

6. The large-flow needleless valve connector of claim 1 or 2, characterized in that the center of the top surface of the small disc (11) is provided with a concave guiding surface, and both sides of the outlet end of the liquid channel (14) are respectively provided with a valve core extension section to form a duckbill valve (27).

7. The high flow needleless adhesive valve connector of claim 1, wherein the bottom surface of the lower housing (22) is concave, and the liquid outlet is located at the center of the concave.

8. The high-flow needle-free glue valve joint according to claim 1, wherein the upper half of the upper shell (21) is provided with an exhaust through hole, and the outer wall of the upper port is provided with an external thread.

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