CN211289069U

CN211289069U - Fluid joint assembly and infusion pipeline device

Info

Publication number: CN211289069U
Application number: CN201922463745.2U
Authority: CN
Inventors: 陈志秋; 韦乃武
Original assignee: Shenzhen Maiwei Biotechnology Co ltd
Current assignee: Shenzhen Maiwei Biotechnology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-08-18
Anticipated expiration: 2029-12-31

Abstract

The application discloses fluid connector subassembly and infusion pipe device, including male joint, female joint, stationary blade and elastic sealing pad, the male joint has the first pipeline hole that runs through around the flowing direction of edge fluid, the butt joint end of male joint has first screw thread section, the female joint has the second pipeline hole that runs through around the flowing direction of edge fluid, second pipeline hole has the less pipe orifice of gluing that the internal diameter is less and the great butt joint hole of internal diameter, the junction of butt joint hole and pipe orifice of gluing forms the step face, the butt joint hole has the second screw thread section, first screw thread section and second screw thread section cooperation, the stationary blade is fixed in the butt joint hole and push down the step face, the stationary blade tightly overlaps sealed the pad, sealed pad is stopped up the pipe orifice of gluing. Because the sealing gasket is used for sealing, the twisting-off is not easy due to stress generated after the twisting.

Description

Fluid joint assembly and infusion pipeline device

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to liquid joint subassembly and infusion pipe device.

Background

For a traditional luer connector, an inner cone is arranged in a female connector hole, an outer cone is arranged at the thread end of a male connector, and after threads of the female connector and the male connector are locked and assembled clockwise, the inner conical surface and the outer conical surface are attached to each other to play a role in sealing, and are connected with a liquid conveying pipe to form an integral liquid conveying function. Because the connection structure exists in the inner cone and the outer cone, the sealing principle is completed by the surface fitting of the cones, so that the inner cone and the outer cone are tightly fitted under the condition of good sealing performance. When the male joint and the female joint are assembled and locked for a long time, the male joint and the female joint are difficult to unscrew again, the reason is that a large external force is applied for tightening the joints without leakage, the stress cannot be dissipated after the threads and the inner and outer cones are locked, and friction can be generated when the inner and outer cones are tightly attached, so that the joints are difficult to unscrew again. Such connectors are limited to short-term use or disposable use, but are clearly at a disadvantage in the current trend of advocating environmental protection and low cost.

SUMMERY OF THE UTILITY MODEL

The utility model provides a new fluid joint assembly.

The utility model provides a fluid joint subassembly, including male joint, female joint, stationary blade and elastic sealing pad, the male joint has the first pipeline hole that runs through around the fluid flow direction of edge, the butt joint end of male joint has first screw thread section, the female joint has the second pipeline hole that runs through around the fluid flow direction of edge, second pipeline hole has the less viscose pipe hole of internal diameter and the great butt joint hole of internal diameter, the junction of butt joint hole and viscose pipe hole forms the step face, the butt joint hole has the second screw thread section, first screw thread section and the cooperation of second screw thread section, the stationary blade is fixed the butt joint is downthehole and is pushed down the step face, the stationary blade tightly overlaps sealed pad, sealed pad is sealed the viscose pipe hole.

The butt joint end is also provided with a sealing step which is arranged in a protruding mode, and the sealing step is abutted against the sealing gasket on the step surface.

The first thread segment is an external thread and the second thread segment is an internal thread.

The thickness of the fixing piece is larger than that of the sealing gasket.

An infusion pipeline device comprises an infusion tube and a fluid joint component, wherein the fluid joint component comprises a male joint, a female joint, a fixing piece and an elastic sealing gasket, the male connector is provided with a first pipeline hole which penetrates through the male connector back and forth along the flowing direction of the fluid, the butt joint end of the male connector is provided with a first thread section, the female joint is provided with a second pipeline hole which penetrates through the female joint front and back along the flowing direction of the fluid, the infusion tube is fixedly matched with the first pipeline hole and the second pipeline hole, the second pipeline hole is provided with a sticky pipe hole with smaller inner diameter and a butt joint hole with larger inner diameter, a step surface is formed at the joint of the butt joint hole and the sticky pipe hole, the butt joint hole is provided with a second thread section, the first thread section is matched with the second thread section, the fixing piece is fixed in the butt joint hole and presses the step surface, the fixing piece is tightly sleeved on the sealing gasket, and the sealing gasket is blocked on the pipe sticking hole.

The utility model has the advantages that: the sealing gasket is used for sealing, and the twisting-off difficulty caused by stress can be avoided.

Drawings

FIG. 1 is an exploded perspective view of a fluid connector assembly according to the present embodiment;

FIG. 2 is a schematic front view of the male connector of the present embodiment;

fig. 3 is a schematic cross-sectional view of a fluid coupling assembly of the present embodiment.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 3, the fluid connector assembly of the present embodiment can be connected to an infusion tube 5 to achieve liquid medicine delivery. The fluid connector assembly comprises a male connector 1, a female connector 2, a fixing sheet 3 and a sealing gasket 4. The male connector 1 has a first pipe hole 11 penetrating forward and backward in the flow direction of the liquid medicine, and the first pipe hole 11 is penetrated by the liquid pipe 5. The male connector 1 has an abutting end 15 abutting the female connector 2, the abutting end 15 has a first threaded section 12 and a sealing step 13, and the sealing step 13 may be located at a front end of the first threaded section 12. The female connector 2 has a second pipe hole 21 penetrating forward and backward in the flow direction of the liquid medicine, the second pipe hole 21 has a tube hole 23 having a small inner diameter and a butt hole 24 having a large inner diameter, the tube hole 23 can be penetrated by the liquid tube 5, and the butt hole 24 can be fitted with the butt end 15 of the male connector. The adhesive tube hole 23 and the butt joint hole 24 are communicated, and a step surface 26 is formed at the joint of the adhesive tube hole 23 and the butt joint hole 24. The fixing plate 3 is in the shape of a ring, and the shape and the size of the fixing plate are matched with those of the butting holes 24. The gasket 4 is made of a material having elasticity and a certain strength, which can perform a sealing function. The outer wall surface of the fixing piece 3 can be matched with the connecting hole 24, and the inner wall surface of the fixing piece 3 can be matched with the gasket 4.

When the male joint 1 is matched with the female joint 2, the fixing piece 3 is tightly sleeved with the sealing gasket 4, the fixing piece 3 is fixed in the butt joint hole 24 of the female joint 2 and is pressed against the step surface 26, and the sealing gasket 4 blocks the pipe sticking hole 23; the butt end 15 of the male connector is matched with the butt hole 24 of the female connector, and the first thread section 12 of the butt end is matched with the second thread section 22 of the butt hole.

In the present embodiment, the thickness of the fixing piece 3 is larger than the thickness of the gasket 4. The inner diameter of the fixing piece 3 is larger than the inner diameter of the tube sticking hole 23, the outer diameter of the sealing gasket 4 is larger than the inner diameter of the tube sticking hole 23, and the inner diameter of the sealing gasket 4 is matched with the inner diameter of the tube sticking hole 23 and the outer diameter of the infusion tube 5. The anchor tab, gasket and adhesive tube aperture may be coaxial. The sealing step 13 is located at the forward end of the first thread segment 12 in the flow direction of the medical fluid, i.e. closer to the female connector than to the first thread segment. The sealing pad 4 may be made of plastic or rubber, and may have a circular, square or other structure capable of sealing the tube hole.

To fluid coupling subassembly, the opening part in first pipeline hole, second pipeline hole is glue mouth of

pipe

14, 25, should glue mouth of

pipe

14, 25 department, can fix transfer line 5 and first pipeline hole 11, second pipeline hole 21 through the mode of gluing fixed, make transfer line 5, male joint 1 and female joint 2 assemble an organic whole, realize the liquid medicine and carry. The sealing gasket 4 is arranged inside the fixing sheet 3, and the sealing gasket plays a sealing role after the male joint and the female joint are locked through threads. After the male joint and the female joint are locked through the threads, the sealing step 13 presses the sealing gasket 4 against the step surface 26 to form a sealing point. In addition, the fixing piece is installed in the butt hole of the female joint, and plays a role of fixing the gasket in the unlocked state of the male joint.

For the fluid joint assembly, the inner cone and the outer cone in the existing joint are eliminated, and the difficulty that the inner cone and the outer cone are twisted and opened along with a friction product is reduced. Because the sealing gasket is used for sealing, the twisting-off is not easy due to stress generated after the twisting.

The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and it is not to be understood that the specific embodiments of the present invention are limited to these descriptions. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement.

Claims

1. The utility model provides a fluid joint subassembly, includes male joint and female joint, the male joint has the first pipeline hole that runs through around the fluid flow direction, the female joint has the second pipeline hole that runs through around the fluid flow direction, its characterized in that still includes stationary blade and elastic sealing pad, the butt joint end of male joint has first screw thread section, second pipeline hole has the less pipe orifice of gluing of internal diameter and the great butt joint hole of internal diameter, the junction of butt joint hole and pipe orifice of gluing forms the step face, the butt joint hole has the second screw thread section, first screw thread section and the cooperation of second screw thread section, the stationary blade is fixed in the butt joint hole and is pushed down the step face, the stationary blade tightly overlaps the sealing pad, the sealing pad is sealed the pipe orifice of gluing.

2. The fluid coupling assembly of claim 1 wherein said mating end further comprises a raised sealing step, said sealing step pressing said gasket against said step surface.

3. The fluid coupling assembly of claim 2 wherein said first thread segment is external and said second thread segment is internal.

4. A fluid connector assembly as defined in claim 2 wherein said retaining tab has a thickness greater than a thickness of said gasket.

5. A transfusion pipeline device comprises a transfusion pipe and a fluid joint assembly, wherein the fluid joint assembly comprises a male joint and a female joint, the male joint is provided with a first pipeline hole which penetrates through the front and the back of the flowing direction of a fluid, the female joint is provided with a second pipeline hole which penetrates through the front and the back of the flowing direction of the fluid, the transfusion pipe is fixedly matched with the first pipeline hole and the second pipeline hole, the transfusion pipe is characterized in that the fluid joint assembly further comprises a fixing plate and an elastic sealing gasket, the butt joint end of the male joint is provided with a first thread section, the second pipeline hole is provided with a sticky pipe hole with a smaller inner diameter and a butt joint hole with a larger inner diameter, the joint of the butt joint hole and the sticky pipe hole forms a step surface, the butt joint hole is provided with a second thread section, the first thread section is matched with the second thread section, the fixing plate is fixed in the, the fixing piece is tightly sleeved on the sealing gasket, and the sealing gasket is used for blocking the pipe sticking hole.

6. The infusate conduit device of claim 5, wherein the mating end of the male connector further includes a raised sealing step that abuts the seal.

7. The infusion tubing set according to claim 6, wherein said first threaded section is external and said second threaded section is internal.

8. The infusate line set of claim 6, wherein the securing tab has a thickness greater than a thickness of the sealing gasket.