CN213374443U - Rubber plug for syringe - Google Patents
Rubber plug for syringe Download PDFInfo
- Publication number
- CN213374443U CN213374443U CN202021621920.2U CN202021621920U CN213374443U CN 213374443 U CN213374443 U CN 213374443U CN 202021621920 U CN202021621920 U CN 202021621920U CN 213374443 U CN213374443 U CN 213374443U
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- China
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- rubber plug
- plug body
- opening
- sealing ring
- syringe
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Abstract
The utility model provides a rubber plug for syringe, including the rubber plug body, the opening has been seted up to one side of rubber plug body, and open-ended inside is provided with internal thread one. When the rubber plug is used, the syringe push rod and the internal thread are screwed, so that the contact area between the rubber plug body and the syringe push rod is large, the connection stability is high, and the rubber plug main body and the syringe push rod are not easy to separate.
Description
Technical Field
The utility model relates to a spare part for the syringe, in particular to a plug for the syringe.
Background
At present, chinese patent with publication number CN200960338Y discloses a syringe rubber plug, which comprises a rubber plug body, wherein two sealing rings are arranged on the rubber plug body, an opening is arranged on one side of the rubber plug body, a cavity is arranged inside the rubber plug body, and the cavity is communicated with the opening. When the injector push rod is used, the injector push rod is pushed into the opening, so that the head of the injector push rod is clamped into the cavity. However, the injector push rod is only pressed inside the cavity through the blocking shoulder formed between the cavity and the opening, so that the connection stability of the injector push rod and the rubber plug body is poor, and the injector push rod and the rubber plug body are easy to separate.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a rubber plug for a syringe, which has the advantages of poor connection stability with a syringe push rod and difficulty in separating from the syringe push rod.
In order to solve the technical problem, the technical scheme of the utility model is that: the rubber plug for the syringe comprises a rubber plug body, wherein an opening is formed in one side of the rubber plug body, and an internal thread I is arranged inside the opening.
Through the technical scheme, during use, the syringe push rod and the internal thread can be screwed, so that the contact area between the rubber plug body and the syringe push rod is large, the connection stability is high, and the rubber plug main body and the syringe push rod are not easy to separate.
Preferably, a hard connecting sleeve is arranged in the opening, an external thread is arranged on the surface of the hard connecting sleeve, the external thread is screwed with the internal thread, and a second internal thread is arranged on the inner wall of the hard connecting sleeve.
Through the technical scheme, the hard connecting sleeve is in threaded connection with the rubber plug body, so that the rubber plug body is not easy to deform, the connection stability of the rubber plug body and the injector push rod can be improved, and the rubber plug body is not easy to separate from the injector push rod.
Preferably, the rubber plug body with be provided with between the stereoplasm adapter sleeve and be connected gluey, it is used for with to connect gluey the rubber plug body with the stereoplasm adapter sleeve bonding is fixed.
Through above-mentioned technical scheme, be provided with between plug body and the stereoplasm adapter sleeve and be connected gluey, it is used for bonding plug body and stereoplasm adapter sleeve fixed to connect gluey for difficult relative movement takes place between plug body and the stereoplasm adapter sleeve, so when syringe push rod threaded connection to stereoplasm adapter sleeve, is difficult for breaking away from between syringe push rod and the plug body.
Preferably, the side wall of the hard connecting sleeve is provided with a glue overflow hole in a penetrating way.
Through the technical scheme, in the process of rotating the hard connecting sleeve, the connecting glue between the rubber plug main body and the hard connecting sleeve can enter the hard connecting sleeve through the glue overflowing hole, so that when the injector push rod is in threaded connection with the hard connecting sleeve, the connecting glue in the hard connecting sleeve can bond and fix the hard connecting sleeve and the injector rubber plug, relative rotation is not easy to occur between the hard connecting sleeve and the injector push rod, and the injector push rod is not easy to separate from the hard connecting sleeve.
Preferably, the rubber plug body is provided with three sealing rings, and the three sealing rings are distributed at equal intervals along the axial direction of the rubber plug body.
Through the technical scheme, the rubber plug body is provided with the three sealing rings, so that the rubber plug body has better sealing performance.
Preferably, the sealing rings are a sealing ring I, a sealing ring II and a sealing ring III respectively, the sealing ring I is located the rubber plug body is far away from one side of the opening, the sealing ring II is located at the opposite position of the rubber plug body and the bottom of the opening, and the sealing ring III is located at the opposite position of the middle part of the opening.
Through above-mentioned technical scheme, sealing ring one is located the plug body and keeps away from open-ended one side, so when using the syringe that is equipped with this plug, the inside hydrops that is difficult for remaining of syringe. The sealing ring II is arranged at the opposite position of the rubber plug body and the bottom of the opening and used for improving the structural strength of the rubber plug body, so that the rubber plug body is not easy to damage. The sealing ring III is arranged at the opposite position of the rubber plug body and the middle part of the opening and used for further improving the structural strength of the rubber plug body, so that the rubber plug body is not easy to damage.
Preferably, the rubber plug body is provided with an anti-overflow groove, and the anti-overflow groove is communicated with the opening.
Through above-mentioned technical scheme, seted up on the plug body and communicate in open-ended anti-overflow groove, so at the in-process of rotating the stereoplasm adapter sleeve, be located the connection between plug body and the stereoplasm adapter sleeve and glue and can enter into anti-overflow inslot portion for it is difficult for following the opening and shifting out and bonding to connect to glue and has open-ended terminal surface department to open at the plug body.
Drawings
FIG. 1 is a schematic structural diagram according to a first embodiment;
fig. 2 is a schematic structural diagram of the second embodiment.
Reference numerals: 1. a rubber plug body; 2. an opening; 3. a first internal thread; 4. a hard connecting sleeve; 5. an external thread; 6. a second internal thread; 7. connecting glue; 8. glue overflow holes; 9. a first sealing ring; 10. a second sealing ring; 11. a third sealing ring; 12. an anti-overflow groove; 13. and a liquid pushing section.
Detailed Description
The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.
The first embodiment is as follows:
a rubber plug for a syringe is shown in figure 1 and comprises a rubber plug body 1 made of rubber materials, wherein the rubber plug body 1 is cylindrical, a liquid pushing section 13 is formed at the bottom of the rubber plug body 1 in a diameter reducing mode, and the liquid pushing section 13 is used for thoroughly pushing liquid medicine in the syringe to reduce liquid loading in the syringe.
The end part of the rubber plug body 1, which is far away from the liquid pushing section 13, is provided with an opening 2, the opening 2 and the rubber plug body 1 are coaxially arranged, the caliber of the opening 2 is smaller than that of the anti-overflow groove 12, and an internal thread 3 is arranged in the opening 2. A hard connecting sleeve 4 is arranged in the opening 2, an external thread 5 is arranged on the outer wall of the hard connecting sleeve 4, and the external thread 5 is screwed with the first internal thread 3.
The lateral wall department of plug body 1 is provided with three sealing rings, and three sealing rings are along the equidistant distribution of axial of plug body 1. The three sealing rings are respectively a first sealing ring 9, a second sealing ring 10 and a third sealing ring 11. The first sealing ring 9 is located at a position, close to the liquid pushing section 13, of the rubber plug body 1, and one side, away from the opening 2, of the first sealing ring 9 coincides with the edge of the liquid pushing section 13. The second sealing ring 10 is located at the opposite position of the bottom of the rubber plug body 1 and the bottom of the opening 2, and is used for improving the structural strength of the rubber plug body 1. The third sealing ring 11 is located at the middle part of the rubber plug body 1 opposite to the middle part of the opening 2 and used for improving the structural strength of the rubber plug body 1.
Example two:
the difference between the second embodiment and the first embodiment is that, as shown in fig. 2, an anti-overflow groove 12 is formed in the end surface of the rubber plug body 1 away from the liquid pushing section 13, the anti-overflow groove 12 is coaxially arranged with the rubber plug body 1, the anti-overflow groove 12 is communicated with the opening, and the width of the notch of the anti-overflow groove 12 is greater than the width of the opening 2.
The connecting glue 7 is arranged between the rubber plug body 1 and the hard connecting sleeve 4, and the rubber plug body 1 and the hard connecting sleeve 4 are fixedly bonded by the connecting glue 7, so that the rubber plug body 1 and the hard connecting sleeve 4 are not easy to separate. The hard connecting sleeve 4 is provided with a glue overflow hole 8, and the glue overflow hole 8 penetrates through the hard connecting sleeve 4 along the radial direction. The inner wall of the hard connecting sleeve 4 is provided with a second internal thread 6, and the second internal thread 6 is in threaded connection with the injector push rod, so that the injector push rod is not easy to separate from the hard connecting sleeve 4.
Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.
Claims (5)
1. The rubber plug for the syringe comprises a rubber plug body (1) and is characterized in that: an opening (2) is formed in one side of the rubber plug body (1), and a first internal thread (3) is arranged inside the opening (2);
a hard connecting sleeve (4) is arranged in the opening (2), an external thread (5) is arranged on the surface of the hard connecting sleeve (4), the external thread (5) is screwed with the internal thread I (3), and an internal thread II (6) is arranged on the inner wall of the hard connecting sleeve (4);
the rubber plug is characterized in that a connecting rubber (7) is arranged between the rubber plug body (1) and the hard connecting sleeves (4), and the connecting rubber (7) is used for bonding and fixing the rubber plug body (1) and the hard connecting sleeves (4).
2. The rubber plug for syringe according to claim 1, wherein: and a glue overflow hole (8) is arranged on the side wall of the hard connecting sleeve (4) in a penetrating way.
3. The rubber plug for syringe according to claim 1, wherein: the rubber plug is characterized in that three sealing rings are arranged on the rubber plug body (1), and the three sealing rings are distributed at equal intervals along the axial direction of the rubber plug body (1).
4. The rubber plug for syringe according to claim 3, wherein: three the sealing ring is sealing ring one (9), sealing ring two (10) and sealing ring three (11) respectively, sealing ring one (9) are located plug body (1) is kept away from one side of opening (2), sealing ring two (10) are located plug body (1) with the relative department of opening (2) bottom, sealing ring three (11) with the relative department in opening (2) middle part.
5. The rubber plug for syringe according to claim 1, wherein: the rubber plug is characterized in that an anti-overflow groove (12) is formed in the rubber plug body (1), and the anti-overflow groove (12) is communicated with the opening (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021621920.2U CN213374443U (en) | 2020-08-06 | 2020-08-06 | Rubber plug for syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021621920.2U CN213374443U (en) | 2020-08-06 | 2020-08-06 | Rubber plug for syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213374443U true CN213374443U (en) | 2021-06-08 |
Family
ID=76204073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021621920.2U Active CN213374443U (en) | 2020-08-06 | 2020-08-06 | Rubber plug for syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213374443U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115214086A (en) * | 2022-07-01 | 2022-10-21 | 株洲时代新材料科技股份有限公司 | Glue injection pressure relief prevention method and device for vulcanization mold |
-
2020
- 2020-08-06 CN CN202021621920.2U patent/CN213374443U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115214086A (en) * | 2022-07-01 | 2022-10-21 | 株洲时代新材料科技股份有限公司 | Glue injection pressure relief prevention method and device for vulcanization mold |
| CN115214086B (en) * | 2022-07-01 | 2023-08-25 | 株洲时代新材料科技股份有限公司 | Method and device for preventing pressure release during glue injection of vulcanization mold |
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