CN211434748U - Needleless connector - Google Patents
Needleless connector Download PDFInfo
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- CN211434748U CN211434748U CN201922076847.9U CN201922076847U CN211434748U CN 211434748 U CN211434748 U CN 211434748U CN 201922076847 U CN201922076847 U CN 201922076847U CN 211434748 U CN211434748 U CN 211434748U
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- connector
- disc
- syringe
- injector
- rubber plug
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Abstract
The utility model discloses a needleless connector, which comprises a rubber plug and a rubber plug base, wherein the rubber plug base comprises an injector connector and a pipeline connector, the injector connector and the pipeline connector are both in a circular tubular structure, the diameter of the injector connector is smaller than that of the pipeline connector, the end part of the injector connector and the end part of the pipeline connector are connected through a circular ring piece and are arranged in a stepped cylindrical shape, and the outer wall of the injector connector is provided with an external thread; the plug is located the syringe connects, and the plug includes that the diameter equals the disc of syringe joint internal diameter and the column body that is located the disc below, disc and column body integrated into one piece, disc syringe articulate, is equipped with an incision that runs through disc and column body on the plug, there is the interval column body lateral wall and syringe joint inner wall, column body lateral wall and disc bottom surface are equipped with and are used for helping the closed rib of incision. The rubber plug and the rubber plug base in the utility model are easy to assemble and easy to produce in a flow line, the rubber plug without the pin joint uses less materials, and raw materials are saved.
Description
Technical Field
The utility model relates to the field of medical equipment, especially, relate to a needleless connector.
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. The purpose of the needleless connector design is to protect medical personnel and reduce the risk of needle stick injuries. However, the installation of the rubber plug without the pin joint and the rubber plug base in the prior art is complex, the rubber plug uses more materials, and the pin joint which is easy for flow line production and uses less materials is urgently needed to be found.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a needleless connector.
The innovation point of the utility model is that the rubber plug and the rubber plug base in the utility model are easy to assemble and to produce in a flow line, the rubber plug without the pin joint uses less materials, and raw materials are saved.
In order to realize the purpose of the utility model, the technical proposal of the utility model is that: a needleless connector comprises a rubber plug and a rubber plug base, wherein the rubber plug base comprises an injector connector and a pipeline connector, the injector connector and the pipeline connector are both in a circular tubular structure, the diameter of the injector connector is smaller than that of the pipeline connector, the end part of the injector connector and the end part of the pipeline connector are connected through a circular ring piece and are arranged in a stepped cylindrical shape, the injector connector, the pipeline connector and the circular ring piece are integrally formed, and external threads are arranged on the outer wall of the injector connector; the plug is located the syringe connects, and the plug includes the disc and is located the cylindricality body of disc below, disc and cylindricality body integrated into one piece, disc and syringe articulate, is equipped with a incision that runs through disc and cylindricality body on the plug, there is the interval column lateral wall and syringe joint inner wall, column lateral wall and disc bottom surface are equipped with and are used for helping the closed rib of incision.
Furthermore, the diameter of the disc is slightly larger than the inner diameter of the syringe connector, the lower part of the disc is clamped in the syringe connector and is adhered to the inner wall of the syringe connector, and the top of the disc is higher than that of the syringe connector.
Further, the diameter of the disc is equal to the outer diameter of the syringe connector, and the bottom of the disc is adhered to the top of the syringe connector.
Further, the disc and the syringe joint are connected by a ring piece.
Further, the ring piece external diameter equals the syringe and connects the external diameter, and the ring piece internal diameter is less than the syringe and connects the internal diameter, and the disc external diameter equals the syringe and connects the internal diameter, and ring piece and disc adopt the rubber coating technology to connect, and the ring piece bottom surface is connected at the syringe and connects the top. The connection between the rubber plug and the rubber plug base is firmer.
Furthermore, the material of the circular ring piece is the same as that of the rubber plug base, and the circular ring piece and the rubber plug base are both made of PC materials.
Further, the notch is a straight notch.
Furthermore, the cross section of the columnar body is in a track shape, and the track shape is composed of two parallel straight sides and two bent sides with the diameter equal to the distance between the two straight sides; the straight-line-shaped notch is parallel to the straight edges and is positioned on the two straight edge symmetrical lines.
Furthermore, the ribs are strip-shaped bodies with right-angled triangle-shaped sections, two ribs are arranged at the straight sides of the column-shaped bodies respectively, the length direction of the ribs is parallel to the straight sides, and two sides corresponding to the right angles of the ribs are connected with the side walls at the straight sides of the column-shaped bodies and the bottoms of the discs respectively. The incision is opened after the needleless injector is inserted, and the incision is closed after the needleless injector is taken away, and the disc and the ribs restore to the original shape.
Further, the ribs, the disc and the columnar body are integrally formed, the disc and the syringe connector are thermally bonded, and the disc and the syringe connector are bonded through a secondary injection molding method. The adhesion is firmer.
The utility model has the advantages that: the utility model discloses well plug and plug base easily assemble, and easily streamlined production, no pin joint's plug materials are few, save raw and other materials, and are with low costs, improve the accurate rate in market.
Drawings
Fig. 1 is a schematic structural view of embodiment 1.
FIG. 2 is a sectional view of example 1.
Fig. 3 is a schematic structural view of the rubber plug.
Fig. 4 is a schematic view of the structure of the rubber plug being inverted.
Fig. 5 is a sectional view of the columnar body.
Figure 6 is a cross-sectional view of the plug.
FIG. 7 is a sectional view of example 2.
FIG. 8 is a sectional view of example 3.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Example 1: as shown in fig. 1, 2, 3, 4, 5 and 6, the needleless connector comprises a rubber plug 1 and a rubber plug base 2, wherein the rubber plug base 2 comprises an injector connector 3 and a pipeline connector 4, the injector connector 3 and the pipeline connector 4 are both in a circular tubular structure, the diameter of the injector connector 3 is smaller than that of the pipeline connector 4, the end part of the injector connector 3 and the end part of the pipeline connector 4 are connected through a circular ring part 5 and are arranged in a stepped cylindrical shape, the injector connector 3, the pipeline connector 4 and the circular ring part 5 are integrally formed, and the outer wall of the injector connector 3 is provided with an external thread; the rubber plug 1 is positioned in the injector connector 3, the rubber plug 1 comprises a disc 6 and a cylindrical body 7 positioned below the disc 6, the cross section of the cylindrical body 7 is in a track shape, the track shape is composed of two parallel straight edges 7.1 and two bent edges 7.2 with the diameter equal to the distance between the two straight edges 7.1, the disc 6 and the cylindrical body 7 are integrally formed, the diameter of the disc 6 is slightly larger than the inner diameter of the injector connector 3, the lower part of the disc 6 is clamped in the injector connector 3 and connected with the inner wall of the injector connector 3, and the top of the disc 6 is higher than the top of the injector connector. The disc 6 is thermally bonded to the inner wall of the syringe adapter 3, and the disc 6 is preferably bonded to the inner wall of the syringe adapter 3 by two-shot injection molding. The rubber plug 1 is provided with a notch 8 penetrating through the disc 1 and the columnar body 7, the notch 8 is a linear notch, and the linear notch is parallel to the straight edges and is positioned on the symmetrical line of the two straight edges 7.1; the side wall of the cylindrical body 7 and the inner wall of the injector connector 3 are separated by a distance, ribs 9 for assisting the closing of the cut are arranged on the side wall of the cylindrical body 7 and the bottom surface of the disc 6, the sections of the ribs 9 are in a right-angled triangle structure, two ribs 9 are arranged at the straight edge 7.1 of the cylindrical body 7 respectively, the length direction of each rib 9 is parallel to the straight edge 7.1, two sides corresponding to the right angle of each rib 9 are connected with the side wall at the straight edge of the cylindrical body and the bottom of the disc respectively, and the ribs 9, the disc 6 and the cylindrical body 7 are integrally formed.
Example 2: as shown in fig. 7, a needleless connector comprises a rubber plug 1 and a rubber plug base 2, the rubber plug base 2 comprises an injector connector 3 and a pipeline connector 4, the injector connector 3 and the pipeline connector 4 are both in a circular tubular structure, the diameter of the injector connector 3 is smaller than that of the pipeline connector 4, the end part of the injector connector 3 and the end part of the pipeline connector 4 are connected through a circular ring piece 5 and are arranged in a stepped cylinder shape, the injector connector 3, the pipeline connector 4 and the circular ring piece 5 are integrally formed, and the outer wall of the injector connector 3 is provided with an external thread; the rubber plug 1 is positioned in the injector connector 3, the rubber plug 1 comprises a disc 6 and a cylindrical body 7 positioned below the disc 6, the section of the cylindrical body 7 is in a track shape, the track shape is composed of two parallel straight edges 7.1 and two bent edges 7.2 with the diameter equal to the distance between the two straight edges 7.1, the disc 6 and the cylindrical body 7 are integrally formed, the diameter of the disc 6 is equal to the outer diameter of the injector connector 3, the bottom of the disc 6 is connected with the top of the injector connector 3, the disc 6 is connected with the top of the injector connector 3 in a thermal bonding mode, and the disc 6 is preferably bonded with the top of the injector connector 3 through a secondary injection molding method. The rubber plug 1 is provided with a notch 8 penetrating through the disc 1 and the columnar body 7, the notch 8 is a linear notch, and the linear notch is parallel to the straight edges and is positioned on the symmetrical line of the two straight edges 7.1; the side wall of the cylindrical body 7 and the inner wall of the injector connector 3 are separated by a distance, ribs 9 for assisting the closing of the cut are arranged on the side wall of the cylindrical body 7 and the bottom surface of the disc 6, the sections of the ribs 9 are in a right-angled triangle structure, two ribs 9 are arranged at the straight edge 7.1 of the cylindrical body 7 respectively, the length direction of each rib 9 is parallel to the straight edge 7.1, two sides corresponding to the right angle of each rib 9 are connected with the side wall at the straight edge of the cylindrical body and the bottom of the disc respectively, and the ribs 9, the disc 6 and the cylindrical body 7 are integrally formed.
Example 3: as shown in fig. 8, a needleless connector comprises a rubber plug 1 and a rubber plug base 2, the rubber plug base 2 comprises an injector connector 3 and a pipeline connector 4, the injector connector 3 and the pipeline connector 4 are both in a circular tubular structure, the diameter of the injector connector 3 is smaller than that of the pipeline connector 4, the end part of the injector connector 3 and the end part of the pipeline connector 4 are connected through a circular ring piece 5 and are arranged in a stepped cylinder shape, the injector connector 3, the pipeline connector 4 and the circular ring piece 5 are integrally formed, and the outer wall of the injector connector 3 is provided with an external thread; plug 1 is located syringe connects 3, plug 1 includes disc 6 and the column body 7 that is located 6 below of disc, the cross-section of column body 7 is the runway shape, the runway shape is equalled two straight flange 7.1 of being parallel and two diameters and equals the radius 7.2 of two straight flange 7.1 intervals and constitutes, disc 6 and column body 7 integrated into one piece, disc 6 and syringe connect 3 and connect through ring piece 10, 10 external diameters of ring piece equal syringe connect 3 external diameters, 10 internal diameters of ring piece are less than syringe and connect 3 internal diameters, 6 external diameters of disc equal syringe connect 3 internal diameters, ring piece 10 and disc 6 adopt the rubber coating technology to connect, connect 3 tops at syringe joint on 10 bottoms of ring piece, 10 materials of ring piece and 2 materials of plug base are the same, be the PC material. The rubber plug 1 is provided with a notch 8 penetrating through the disc 1 and the columnar body 7, the notch 8 is a linear notch, and the linear notch is parallel to the straight edges and is positioned on the symmetrical line of the two straight edges 7.1; the side wall of the cylindrical body 7 and the inner wall of the injector connector 3 are separated by a distance, ribs 9 for assisting the closing of the cut are arranged on the side wall of the cylindrical body 7 and the bottom surface of the disc 6, the sections of the ribs 9 are in a right-angled triangle structure, two ribs 9 are arranged at the straight edge 7.1 of the cylindrical body 7 respectively, the length direction of each rib 9 is parallel to the straight edge 7.1, two sides corresponding to the right angle of each rib 9 are connected with the side wall at the straight edge of the cylindrical body and the bottom of the disc respectively, and the ribs 9, the disc 6 and the cylindrical body 7 are integrally formed.
The described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Claims (10)
1. A needleless connector comprises a rubber plug and a rubber plug base, and is characterized in that the rubber plug base comprises an injector connector and a pipeline connector, the injector connector and the pipeline connector are both of a circular tubular structure, the diameter of the injector connector is smaller than that of the pipeline connector, the end part of the injector connector and the end part of the pipeline connector are connected through a circular ring piece and are arranged in a stepped cylindrical manner, the injector connector, the pipeline connector and the circular ring piece are integrally formed, and the outer wall of the injector connector is provided with an external thread; the plug is located the syringe connects, and the plug includes the disc and is located the cylindricality body of disc below, disc and cylindricality body integrated into one piece, disc and syringe articulate, is equipped with a incision that runs through disc and cylindricality body on the plug, there is the interval column lateral wall and syringe joint inner wall, column lateral wall and disc bottom surface are equipped with and are used for helping the closed rib of incision.
2. The needleless connector of claim 1, wherein the diameter of the disk is slightly larger than the inner diameter of the syringe connector, the lower portion of the disk is snapped into the syringe connector and adhered to the inner wall of the syringe connector, and the top of the disk is higher than the top of the syringe connector.
3. The needleless connector of claim 1, wherein the diameter of the disk is equal to the outer diameter of the syringe connector, and the bottom of the disk is bonded to the top of the syringe connector.
4. The needleless connector of claim 1, wherein the disk and the syringe connector are connected by a circular ring.
5. The needle free connector according to claim 4, wherein the outer diameter of the circular ring piece is equal to the outer diameter of the syringe connector, the inner diameter of the circular ring piece is smaller than the inner diameter of the syringe connector, the outer diameter of the circular disc is equal to the inner diameter of the syringe connector, the circular ring piece and the circular disc are connected by an encapsulation process, and the bottom surface of the circular ring piece is connected to the top of the syringe connector.
6. The needleless connector of claim 5, wherein the circular ring sheet and the rubber plug base are made of the same material and are made of PC.
7. The needleless connector of claim 1, wherein the slit is a straight slit.
8. The needleless connector of claim 7, wherein the cross-section of the cylindrical body is racetrack shaped, the racetrack shape comprising two parallel straight sides and two curved sides having a diameter equal to the distance between the two straight sides; the straight-line-shaped notch is parallel to the straight edges and is positioned on the two straight edge symmetrical lines.
9. The needleless connector according to claim 8, wherein the rib is a bar body with a cross section of a right-angled triangle structure, two ribs are respectively located at the straight edge of the cylindrical body, the length direction of the rib is parallel to the straight edge, and two corresponding edges of the right angle of the rib are respectively connected with the side wall at the straight edge of the cylindrical body and the bottom of the disk.
10. The needleless connector of claim 9, wherein the rib, the disk and the post are integrally formed, the connection between the disk and the syringe connector is thermally bonded, and the disk and the syringe connector are bonded by a two-shot injection molding process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922076847.9U CN211434748U (en) | 2019-11-27 | 2019-11-27 | Needleless connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922076847.9U CN211434748U (en) | 2019-11-27 | 2019-11-27 | Needleless connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211434748U true CN211434748U (en) | 2020-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922076847.9U Active CN211434748U (en) | 2019-11-27 | 2019-11-27 | Needleless connector |
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|---|---|
| CN (1) | CN211434748U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114557886A (en) * | 2022-01-21 | 2022-05-31 | 宁波汉科医疗器械有限公司 | Needleless connector and medicine adding assembly |
-
2019
- 2019-11-27 CN CN201922076847.9U patent/CN211434748U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114557886A (en) * | 2022-01-21 | 2022-05-31 | 宁波汉科医疗器械有限公司 | Needleless connector and medicine adding assembly |
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