CN216629168U

CN216629168U - Combined cover

Info

Publication number: CN216629168U
Application number: CN202122932821.7U
Authority: CN
Inventors: 彭振伟
Original assignee: Suzhou Crh Pharmaceutical Technology Co ltd
Current assignee: Suzhou Chuangyang New Materials Technology Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-05-31
Anticipated expiration: 2031-11-26

Abstract

The utility model discloses a combined cover which comprises an outer cover, a rubber plug and an inner cover, wherein a rubber plug chamber is arranged in the outer cover, a transfusion hole is formed in the rubber plug chamber positioned outside the outer cover, an opening for placing the rubber plug is formed in the rubber plug chamber, the rubber plug is arranged in the rubber plug chamber, and the inner cover is arranged at the opening to limit the rubber plug in the rubber plug chamber; at least two contact pins extend downwards in the outer cover, and jacks matched with the contact pins are arranged at corresponding positions on the inner cover; when the device is installed, the contact pins are inserted into the corresponding jacks and are riveted and fixed; the infusion hole is sealed by a sealing element. The utility model skillfully utilizes the matching of the contact pin and the jack and utilizes the riveting technology to realize the connection of the inner cover and the outer cover, overcomes the defects generated by the conventional ultrasonic welding, avoids the pollution of the liquid medicine in the infusion bag and improves the reliability of the connection of the inner cover and the outer cover. The lower extreme of jack sets up the fillet, and the clearance between ingenious utilization jack and the contact pin for the material after the storage rivet hot, contact pin protrusion in inner cup surface after avoiding rivet hot.

Description

Combined cover

Technical Field

The utility model relates to the field of infusion caps, in particular to a combined cap.

Background

Along with the wide application of infusion therapy in the medical field, infusion packaging supplies are continuously updated, and the infusion packaging supplies are developed in the direction of being simpler, cleaner and more convenient. The combined cover generally comprises an inner cover, a rubber plug and an outer cover, wherein the inner cover and the outer cover are connected in an ultrasonic welding manner for fixing, but the ultrasonic welding inevitably transfers energy to the rubber plug to influence the quality of the rubber plug; secondly, there is also a possibility of cold joint and there is a risk of powder substances being generated during the welding process and affecting the liquid medicine. Therefore, a combination cap having a simple connection structure is required.

SUMMERY OF THE UTILITY MODEL

Aiming at overcoming the defects in the prior art, the utility model mainly aims to overcome the defects in the prior art and discloses a combined cover which comprises an outer cover, a rubber plug and an inner cover, wherein a rubber plug chamber is arranged in the outer cover, a transfusion hole is formed in the outer part of the rubber plug chamber, an opening for placing the rubber plug is formed in the rubber plug chamber, the rubber plug is arranged in the rubber plug chamber, and the inner cover is arranged at the opening to limit the rubber plug in the rubber plug chamber; at least two contact pins extend downwards in the outer cover, and jacks matched with the contact pins are arranged at corresponding positions on the inner cover; when the device is installed, the contact pins are inserted into the corresponding jacks and are riveted and fixed; the infusion hole is sealed by a sealing element.

Further, the end of the pin is provided with a round angle.

Furthermore, the opening of the rubber plug chamber is concavely provided with a mounting groove matched with the inner cover.

Further, the contact pins are provided with six pins and are evenly distributed around the circumference of the opening.

Furthermore, the sealing element is a pull ring, a pull folding handle or an aluminum film seal.

Furthermore, the inner surface of the rubber plug chamber is provided with a first sealing bulge, the inner cover is provided with a second sealing bulge, and the upper surface and the lower surface of the rubber plug are respectively provided with a first sealing groove and a second sealing groove which are in close fit with the first sealing bulge and the second sealing bulge.

Further, the lower end of the jack is provided with a round angle.

The utility model has the following beneficial effects:

the utility model skillfully utilizes the matching of the contact pin and the jack and utilizes the riveting technology to realize the connection of the inner cover and the outer cover, overcomes the defects generated by the conventional ultrasonic welding, avoids the pollution of the liquid medicine in the infusion bag and improves the reliability of the connection of the inner cover and the outer cover. The lower extreme of jack sets up the fillet, and the ingenious clearance that utilizes between jack and the contact pin for the material after the storage rivet hot avoids rivet hot back contact pin protrusion in inner cup surface. Set up sealed arch on enclosing cover and the inner cup to set up the leakproofness that the complex seal groove has further improved the plug on the plug, also realized the location of plug simultaneously, avoid taking place to shift when using and influence the leakproofness of combined cover.

Drawings

FIG. 1 is a schematic perspective view of a combination cover according to the present invention;

FIG. 2 is a bottom view of FIG. 1;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a schematic view of the inner and outer lids mated after hot riveting;

FIG. 5 is a schematic view of a combined lid of a ring pull configuration;

FIG. 6 is a schematic view of the structure of the combined cover with a trigger structure;

FIG. 7 is a schematic structural view of a combined cover having an aluminum film structure;

the reference numbers are as follows:

1. the outer cover, 2, plug, 3, inner cover, 4, sealing member, 11, plug room, 12, transfusion hole, 13, contact pin, 14, mounting groove, 15, first sealed arch, 21, first seal groove, 22, second seal groove, 31, jack, 32, second sealed arch.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

A combined cover is shown in figures 1-4 and comprises an outer cover 1, a rubber plug 2 and an inner cover 3, wherein a rubber plug chamber 11 is arranged in the outer cover 1, the rubber plug chamber 11 is positioned outside the outer cover 1 and is provided with a transfusion hole 12, and an opening for placing the rubber plug 2 is arranged inside the rubber plug chamber; usually, the opening is matched with the size of the rubber plug 2, so that the rubber plug can be smoothly put into the rubber plug chamber 11. The rubber plug 2 is arranged in the rubber plug chamber 11 in a tight fit manner, and plays a role in sealing between the inside and the outside of the outer cover 1. The inner cover 3 is installed at the opening and is fixedly connected with the outer cover 1 for limiting the rubber plug 2 in the rubber plug chamber 11. Specifically, at least two pins 13 extend downwards in the outer cover 1, and the corresponding positions on the inner cover 3 are provided with insertion holes 31 matched with the pins 13; when mounted, the pin 13 is inserted into the insertion hole 31 and fixed by caulking. The infusion hole 12 is sealed by a sealing element 4. When the infusion set is used, the infusion needle can pierce the rubber plug 2 through the infusion hole 12 and enter the inner part of the outer cover 1 only by opening the sealing piece.

In one embodiment, as shown in FIGS. 1-4, the ends of the pins 13 are rounded; through the fillet, make things convenient for contact pin 13 to insert in jack 31, play the guide effect.

In one embodiment, as shown in fig. 1-4, an installation groove 14 matched with the inner cover 3 is concavely arranged at the opening of the rubber plug chamber 11. Namely, a step structure is arranged between the mounting groove 14 and the rubber plug chamber 11 so as to limit the axial mounting position of the inner cover 3; the mounting groove 14 is sized to fit the size of the inner lid 3, limiting the horizontal mounting position of the inner lid 3.

In one embodiment, as shown in fig. 1-4, the pins 13 may be provided in plural numbers; for example, when two pins are provided, the two pins 13 are respectively located at both ends of the opening, which are distant from each other. When four openings are arranged, two of the openings are respectively arranged at two ends which are far away from the opening, and the other two openings are respectively arranged in the middle of two sides of the opening. When six are arranged, two of the six are respectively arranged at two ends of the opening which are far away, and the rest four are respectively and uniformly arranged at two sides of the opening. Of these, six pins 13 are preferably provided.

In an embodiment, as shown in fig. 1 to 4, a first sealing protrusion 15 is disposed on an inner surface of the rubber plug chamber 11, a second sealing protrusion 32 is disposed on the inner cover 3, and a first sealing groove 21 and a second sealing groove 22 which are tightly fitted with the first sealing protrusion 15 and the second sealing protrusion 32 are respectively disposed on an upper surface and a lower surface of the rubber plug 2. During installation, the first sealing bulge 15 is inserted into the first sealing groove 21, and the second sealing bulge 32 is inserted into the second sealing groove 22, so that the sealing performance between the rubber plug 2 and the outer cover 1 and the inner cover 3 is further improved.

In one embodiment, the lower end of the socket 31 is rounded as shown in fig. 1-4. It can be seen that when the riveting is not performed, a certain gap exists between the pin 13 and the insertion hole 31 by using a fillet, and the gap is used for storing the material after the end of the pin 13 is hot-melted, so as to prevent the material after the hot-riveting from protruding out of the surface of the inner cover 3.

The above structure can be applied to a combined cover of various structures. As shown in fig. 5, the sealing element 4 is configured as a pull ring structure, and the sealing element is a pull ring, a pull folding handle or an aluminum film seal. As shown in fig. 6, the sealing member 4 is provided as a toggle lever. As shown in fig. 7, the sealing member 4 is provided as an aluminum film, which is directly attached to the exterior cover 1.

The utility model also discloses a manufacturing method of the combined cover, and the steps for producing the combined cover comprise:

s1, manufacturing an outer cover, an inner cover and a rubber plug respectively through an injection molding machine;

s2, plugging the rubber plug into the rubber plug chamber of the outer cover;

and S3, inserting the contact pin of the outer cover into the corresponding jack on the inner cover, and carrying out hot melting and riveting on the end part of the contact pin through a hot riveting machine to complete the installation of the inner cover and the outer cover.

The above are merely preferred embodiments of the present invention, and are not intended to limit the scope of the utility model; it is intended that the following claims be interpreted as including all such alterations, modifications, and equivalents as fall within the true spirit and scope of the utility model.

Claims

1. A combined cover comprises an outer cover, a rubber plug and an inner cover, wherein a rubber plug chamber is arranged in the outer cover, a transfusion hole is formed in the rubber plug chamber and positioned outside the outer cover, an opening for placing the rubber plug is formed in the rubber plug chamber, the rubber plug is arranged in the rubber plug chamber, and the inner cover is arranged at the opening to limit the rubber plug in the rubber plug chamber; the novel multifunctional socket is characterized in that at least two contact pins extend downwards in the outer cover, and jacks matched with the contact pins are arranged in corresponding positions on the inner cover; when the device is installed, the contact pins are inserted into the corresponding jacks and are riveted and fixed; the infusion hole is sealed by a sealing element.

2. The lid assembly of claim 1, wherein the ends of the pins are rounded.

3. The combination cover according to claim 1, wherein the opening of the rubber plug chamber is recessed with an installation groove matched with the inner cover.

4. The lid assembly of claim 1, wherein the pins are six in number and are evenly distributed around the circumference of the opening.

5. A composite closure according to claim 1, wherein said sealing means is a pull ring, a lever or an aluminium film seal.

6. The combination cover according to claim 1, wherein a first sealing protrusion is disposed on an inner surface of the rubber plug chamber, a second sealing protrusion is disposed on the inner cover, and a first sealing groove and a second sealing groove which are tightly fitted with the first sealing protrusion and the second sealing protrusion are disposed on an upper surface and a lower surface of the rubber plug, respectively.

7. The composite cover according to claim 1, wherein the lower end of the insertion hole is rounded.