CN219949092U

CN219949092U - Rubber plug

Info

Publication number: CN219949092U
Application number: CN202321328304.1U
Authority: CN
Inventors: 朱锦标; 李鼎红; 周金; 杜书保
Original assignee: Zhejiang Tekang Rubber Stopper Co ltd
Current assignee: Zhejiang Tekang Rubber Stopper Co ltd
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2023-11-03
Anticipated expiration: 2033-05-29

Abstract

The utility model discloses a rubber plug, which comprises a rubber plug body, wherein a groove is formed in the rubber plug body, a gap penetrating through a joint is formed in the rubber plug body corresponding to the bottom surface of the groove, a sealing ring matched with the joint is arranged on the side wall of the groove, the sealing ring comprises at least one first arc-shaped section and at least one second arc-shaped section, the curvature of the first arc-shaped section is larger than that of the second arc-shaped section, the first arc-shaped section and the second arc-shaped section are alternately connected to form a ring shape, and a notch is formed in the second arc-shaped section; the joint is inserted into the groove and penetrates through a gap at the bottom of the groove, so that rubber is prevented from being torn to generate rubber scraps; the joint is attached with the sealing ring, the joint pushes the first arc-shaped section of the sealing ring to expand outwards, two ends of the second arc-shaped section extend to two sides, the closed notch is stretched into an open state, the notch penetrates through the inside and the outside of the medicine bottle, and the pressure intensity inside and outside the medicine bottle can be balanced.

Description

Rubber plug

Technical Field

The utility model relates to the technical field of container sealing, in particular to a rubber plug.

Background

The medicine bottle is usually provided with a rubber plug, so that the purpose of the rubber plug is to seal the mouth of the medicine bottle, and meanwhile, other medicaments can be conveniently added. When the medicament is generally added, the syringe needle is required to be used for penetrating the rubber stopper, then the medicament is pushed into the medicament bottle, and in the process of penetrating the rubber stopper, rubber is torn to generate rubber scraps and falls into the medicament bottle to become impurities, so that the medicament in the bottle is polluted.

The rubber plug disclosed in the patent with the application number of 202223251242.7 realizes the transmission and the extraction of liquid by utilizing the joint to pass through the groove and the gap, and the prior art can enter the container body without using a needle, so that the problem of pollution caused by falling off of rubber scraps when the needle is used for penetrating the rubber plug is avoided; simultaneously, through sealing strip and joint matched with, realize the inside and outside sealed isolation of medicine bottle. But after the joint is tightly attached to the sealing strip, the pressure in the medicine bottle can be increased by pushing the medicine, the pushing of the medicine can be more and more laborious along with the gradual increase of the pressure in the bottle, and even the phenomenon that the medicine in the bottle flows back into the joint can occur, so that the medicine outside the joint is polluted.

Disclosure of Invention

In order to solve at least one technical problem in the background art, the utility model aims to provide a rubber plug which can balance the pressure inside and outside a medicine bottle in the process of pushing medicine and prevent the labor-consuming pushing and the medicine from flowing back.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the rubber plug comprises a rubber plug body, wherein a groove is formed in the rubber plug body, a gap penetrating through a joint is formed in the rubber plug body corresponding to the bottom surface of the groove, a sealing ring matched with the joint is arranged on the side wall of the groove, the sealing ring comprises at least one first arc-shaped section and at least one second arc-shaped section, the curvature of the first arc-shaped section is larger than that of the second arc-shaped section, the first arc-shaped section and the second arc-shaped section are alternately connected to form a ring shape, and a notch is formed in the second arc-shaped section; in the initial state, the notch is closed; when the connector is inserted into the groove, the connector is abutted with the first arc-shaped section, two ends of the second arc-shaped section extend to two sides, and the notch is opened.

Compared with the prior art, the utility model has the beneficial effects that:

the joint is inserted into the groove and penetrates through a gap at the bottom of the groove, so that rubber is prevented from being torn to generate rubber scraps; the connector is attached to the sealing ring, the connector pushes the first arc-shaped section of the sealing ring to expand outwards, so that two ends of the second arc-shaped section extend to two sides, the closed notch is stretched into an open state, the notch penetrates through the inside and the outside of the medicine bottle, and the pressure intensity inside and outside the medicine bottle can be balanced; along with the increase of medicines pushed into the bottle, internal gas is discharged from the notch, the internal pressure and the external pressure are balanced, the laborious degree of pushing in the medicines is unchanged, the phenomenon that the medicines in the bottle flow back into the joint does not occur, and the pollution of the medicines outside the joint is effectively prevented.

Preferably, the inner wall of the groove is provided with a plurality of air holes, the air holes are connected with the notch, and valves for controlling the air in the air holes to flow from bottom to top are arranged in the air holes.

Preferably, the inner wall of the groove is provided with an air guide ring, the air guide hole is arranged on the air guide ring, the top surface of the air guide ring is in contact with the bottom surface of the sealing ring, and the air guide holes are in one-to-one correspondence with the positions of the notches.

Preferably, the valve comprises two upwardly curved arcuate members.

Preferably, the sealing ring and the rubber plug body are of an integrated structure.

Preferably, the surface of the sealing ring is provided with a medical silicone oil layer.

Preferably, the rubber stopper body is mounted at the mouth of the container, and the rubber stopper body includes an engagement surface in contact with the inner wall of the mouth and a stepped surface in contact with the top of the mouth.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2 "A";

FIG. 4 is a partial cross-sectional view taken at 2"B-B';

FIG. 5 is a cross-sectional view of the present utility model with a fitting inserted therein;

fig. 6 is a partial enlarged view at 5"C";

FIG. 7 is a partial cross-sectional view taken at 5"D-D';

in the figure:

1. a rubber stopper body; 10. a groove; 11. a flap rubber; 110. a slit; 12. a seal ring; 121. a notch; 122. a first arcuate segment; 123. a second arcuate segment; 13. a gas ring; 131. an air guide hole; 132. a valve; 14. a step surface; 15. a joint surface; 2. and (3) a joint.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, 4 and 7, the present embodiment provides a rubber plug, including a rubber plug body 1, a groove 10 is formed on the rubber plug body 1, a sealing ring 12 matched with a joint 2 is provided on a side wall of the groove 10, the sealing ring 12 is made of rubber material, a medical silicone layer (may be a medical dimethyl silicone layer) is provided on a surface of the sealing ring 12, and the lubricity of the rubber plug can be improved by adopting the medical silicone layer, so that the joint 2 can smoothly pass through the sealing ring 12;

the sealing ring 12 comprises two first arc-shaped sections 122 and two second arc-shaped sections 123, wherein the curvature of the first arc-shaped sections 122 is larger than that of the second arc-shaped sections 123, the first arc-shaped sections 122 and the second arc-shaped sections 123 are alternately connected to form a ring shape and are smoothly connected, so that the inner ring of the sealing ring 12 is elliptical, when the joint 2 is inserted, the joint 2 enables the first arc-shaped sections 122 to expand outwards, and the two first arc-shaped sections 122 respectively stretch the two ends of the two second arc-shaped sections 123, so that the inner ring of the sealing ring 12 is circular; the second arc-shaped section 123 is provided with a notch 121, and it is noted that the notch 121 is in a closed state (as shown in fig. 4) in an initial state, and the notch 121 and the minor semi-axis of the ellipse are located on the same straight line; when the connector 2 is inserted into the groove 10, the inner ring of the sealing ring 12 is expanded to be circular by the connector 2, the two ends of the second arc-shaped section 123 are stretched towards the two ends by the tensile force of the first arc-shaped section 122, so that the notch 121 is expanded to be in a small hole shape (as shown in fig. 7), the gas is conveniently discharged, the pressure in the bottle is prevented from increasing, medicines are difficult to push in, and the medicine in the bottle can be prevented from flowing back.

Referring to fig. 2 and 5, in the embodiment, the groove 10 penetrates to the bottom of the rubber plug body 1, a gap 110 is formed on the rubber plug body 1 corresponding to the bottom of the groove 10, the gap 110 is used for facilitating the passage of the joint 2 and preventing the penetration of chips generated by the rubber plug body 1, the gap 110 makes the bottom of the groove 10 form a plurality of circumferentially distributed flap rubbers 11, adjacent flap rubbers 11 are abutted/partially overlapped, and the plurality of flap rubbers 11 close the bottom of the groove 10; when the connector 2 is inserted, the connector 2 pushes the flap rubber 11 downwards, so that rubber scraps are prevented from entering the bottle, and medicine pollution in the bottle is caused.

Referring to fig. 3 and 6, in the present embodiment, an air guide ring 13 is circumferentially disposed on a side wall of the groove 10, when the connector 2 is inserted into the groove 10, an outer wall of the connector 2 is attached to an inner wall of the air guide ring 13, a plurality of air guide holes 131 are formed in the air guide ring 13, and the air guide holes 131 are vertically penetrated; the valve 132 for controlling the air flow in the air vent 131 from the bottom to the top is arranged in the air vent 131, the valve 132 comprises two arc-shaped pieces which are bent upwards (the valve 132 is similar to a heart valve for controlling the blood flow direction in the heart, and the function is similar to that of the heart valve), after the joint 2 is inserted, the notch 10 is prevented from being opened, the gap between the flap-shaped rubber 11 is enlarged, and the air outside the bottle directly enters the bottle to pollute the medicine.

Wherein, the top surface of the air guide ring 13 and the bottom surface of the seal ring 12 may be in contact with each other or integrally formed, when the two are integrally formed, the notch 10 is communicated with the air guide hole 131, and when the connector 2 is not inserted, the notch 10 and the air guide hole 131 are in a state of closed upper end and open lower end; when the two are in contact with each other, the positions of the air guide holes 131 and the notch 121 are in one-to-one correspondence; after the joint 2 is inserted, the notch 121 is stretched and opened to form a small hole, the ice jade air hole 131 is communicated, and because the sealing ring 12 is matched and sealed with the joint 2, the air can only flow out of the bottle from the air hole 131 and the notch 121; after the adaptor 2 is pulled out, the inside and outside of the bottle are sealed by the flap rubber 11.

Referring to fig. 1, 2 and 5, in this embodiment, the rubber stopper body 1 is installed at the mouth of a container, and the rubber stopper body 1 includes an engagement surface 15 contacting with the inner wall of the mouth, and a step surface 14 contacting with the top of the mouth.

It is noted that the rubber plug body 1, the joint surface 15, the step surface 14, the flap rubber 11, the sealing ring 12 and the air guide ring 13 are integrally formed, and the connector 2 is a syringe, a medical two-way valve, a medical three-way valve or a medical four-way valve.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The rubber plug comprises a rubber plug body (1), wherein a groove (10) is formed in the rubber plug body (1), a gap (110) penetrating through a joint (2) is formed in the rubber plug body (1) corresponding to the bottom surface of the groove (10), and the rubber plug is characterized in that a sealing ring (12) matched with the joint (2) is arranged on the side wall of the groove (10), the sealing ring (12) comprises at least one first arc-shaped section (122) and at least one second arc-shaped section (123), the curvature of the first arc-shaped section (122) is larger than that of the second arc-shaped section (123), the first arc-shaped section (122) and the second arc-shaped section (123) are alternately connected to form a ring shape, and a notch (121) is formed in the second arc-shaped section (123); in an initial state, the notch (121) is closed; when the joint (2) is inserted into the groove (10), the joint (2) is abutted with the first arc-shaped section (122), two ends of the second arc-shaped section (123) extend to two sides, and the notch (121) is opened.

2. A rubber stopper according to claim 1, characterized in that the inner wall of the groove (10) is provided with a plurality of air holes (131), the air holes (131) are connected with the notch (121), and a valve (132) for controlling the air in the air holes (131) to flow from bottom to top is arranged in the air holes (131).

3. A rubber stopper according to claim 2, wherein the inner wall of the groove (10) is provided with an air guide ring (13), the air guide holes (131) are arranged on the air guide ring (13), the top surface of the air guide ring (13) is in contact with the bottom surface of the sealing ring (12), and the positions of the air guide holes (131) and the notches (121) are in one-to-one correspondence.

4. A rubber stopper according to claim 2, wherein the valve (132) comprises two curved upwardly curved segments.

5. A rubber stopper according to claim 1, wherein the sealing ring (12) is of unitary construction with the rubber stopper body (1).

6. A rubber stopper according to claim 1, wherein the surface of the sealing ring (12) is provided with a layer of medical silicone.

7. A rubber stopper according to claim 1, wherein the rubber stopper body (1) is mounted at the mouth of a container, the rubber stopper body (1) comprising an engagement surface (15) in contact with the inner wall of the mouth and a step surface (14) in contact with the top of the mouth.