CN216136490U - Needle head sealing dustproof sleeve - Google Patents
Needle head sealing dustproof sleeve Download PDFInfo
- Publication number
- CN216136490U CN216136490U CN202022590004.3U CN202022590004U CN216136490U CN 216136490 U CN216136490 U CN 216136490U CN 202022590004 U CN202022590004 U CN 202022590004U CN 216136490 U CN216136490 U CN 216136490U
- Authority
- CN
- China
- Prior art keywords
- needle
- sealing
- cylinder
- fixedly connected
- sealing sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 45
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000002985 plastic film Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 10
- 239000003814 drug Substances 0.000 abstract description 5
- 238000011109 contamination Methods 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a needle head sealing dustproof sleeve which comprises a needle cylinder, wherein a needle bolt is connected to the left end surface of the needle cylinder, a needle head is connected to the left end surface of the needle bolt, a first sealing sleeve is sleeved outside the needle head, a threaded cover is connected to the right end surface of the first sealing sleeve, a piston is connected to the inner side wall of the needle cylinder in a sliding mode, the right end surface of the piston is connected with one end of a push rod, the other end of the push rod extends out of the needle cylinder and is connected with a pressing block, the outer surface of the pressing block is connected with one end of a second sealing sleeve, the other end of the second sealing sleeve is fixedly bonded with the outer surface of the needle cylinder, when the needle head sealing dustproof sleeve is used, the threaded cover is in threaded connection with the needle bolt, the first sealing cover is sleeved on the outer side of the needle head, the needle head is effectively protected, the needle head is prevented from being exposed in air, the second sealing sleeve is used for sealing the push rod, and preventing the push rod from adsorbing external dust, during the pushing of the plunger into the cylinder, contamination of the inside of the cylinder and thus contamination of the liquid medicine may occur.
Description
Technical Field
The utility model relates to the technical field of needle head sealing of syringes, in particular to a needle head sealing dustproof sleeve.
Background
Syringes are a common medical device. As early as the 15 th century, kathler, italian, proposed the principle of a syringe, mainly for the extraction or injection of gas or liquid by means of a needle, the appearance of which was an epoch-making revolution in the field of medical devices, the process of extraction or injection of gas or liquid by means of a needle, called injection, consisting of a barrel with a small hole at the front end and a plunger matching it, intended to inject a small quantity of liquid or the like into an area inaccessible to other methods or to extract it from those places, the liquid or gas being sucked in through the small hole at the front end of the barrel when the plunger is extracted, and the liquid or gas being pushed out when the plunger is pushed in, but in use, the needle is exposed to air, and in particular during the dispensing process, the needle is exposed for a relatively long time, and contaminants are introduced, and therefore, a needle-sealing dust-proof boot is required.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a needle head sealing dustproof sleeve to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides a syringe needle seals dirt proof boot, includes the cylinder, the left end face fixedly connected with pintle of cylinder, the left end face fixedly connected with syringe needle of pintle, the syringe needle overcoat is equipped with first seal cover, the right-hand member face fixedly connected with screw cap of first seal cover, the surface of pintle is provided with the external screw thread, the inside wall of screw cap is provided with the internal thread, external screw thread and internal thread threaded connection, the inside wall sliding connection of cylinder has the piston, the one end of the right-hand member face fixed connection push rod of piston, the other end of push rod stretches out the cylinder and outer and fixedly connected with press the briquetting, the one end of the external fixed connection second seal cover of briquetting, the other end of second seal cover bonds with the external fixed surface of cylinder.
Preferably, the outer surface of the needle cylinder is provided with an observation window, and the observation window is provided with scale marks.
Preferably, the second sealing sleeve is made of elastic transparent plastic film.
Preferably, the inner side wall of the first sealing sleeve is provided with a water-absorbing sponge.
Preferably, the outer surface of the threaded cover is fixedly connected with a plurality of anti-skid protrusions.
Preferably, a sealing ring is arranged between the thread cover and the pintle.
Compared with the prior art, the utility model has the beneficial effects that: when the device is used, the threaded cover is in threaded connection with the pintle, the first sealing cover is sleeved on the outer side of the needle head and effectively protects the needle head, the needle head is prevented from being polluted due to exposure of the needle head in the air, the second sealing sleeve is arranged for sealing the push rod, and the phenomenon that the push rod adsorbs external dust, so that the inside of the needle cylinder is polluted due to the fact that the push rod is pushed into the needle cylinder, and liquid medicine is polluted is avoided; the arranged water-absorbing sponge is used for absorbing water drops on the needle point on the needle head; the observation window and the scale marks are arranged for facilitating the observation of the volume of the liquid medicine in the needle cylinder by personnel; meanwhile, the second sealing sleeve is made of an elastic transparent plastic film, so that the scale marks can be observed conveniently, and meanwhile, the push rod can be pressed by a person conveniently.
Drawings
FIG. 1 is a front view of the main structure of a needle-sealing dust-proof boot;
fig. 2 is a sectional view of a main body structure part of a needle-sealing dust-proof sleeve.
In the figure: 1-first sealing sleeve, 2-threaded cover, 3-anti-skid protrusion, 4-syringe, 5-observation window, 6-scale mark, 7-second sealing sleeve, 8-pressing block, 9-push rod, 10-water-absorbing sponge, 11-needle head and 12-needle bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a syringe needle seals dirt proof boot, includes cylinder 4, the left end face fixedly connected with pintle 12 of cylinder 4, the left end face fixedly connected with syringe needle 11 of pintle 12, first seal cover 1 is equipped with to syringe needle 11 overcoat, the right-hand member face fixedly connected with screw cap 2 of first seal cover 1, the surface of pintle 12 is provided with the external screw thread, the inside wall of screw cap 2 is provided with the internal thread, external screw thread and internal thread threaded connection, the inside wall sliding connection of cylinder 4 has the piston, the right-hand member face fixedly connected with push rod 9's of piston one end, the other end of push rod 9 stretches out the cylinder 4 outer and fixedly connected with and presses briquetting 8, the one end of the outer fixed surface of pressing briquetting 8 connection second seal cover 7, the other end of second seal cover 7 bonds with the outer fixed surface of cylinder 4.
During the use, with screw cap 2 and pintle 12 threaded connection, first sealed lid 1 will overlap and establish in the outside of syringe needle 11 to carry out effectual protection to syringe needle 11, avoid syringe needle 11 to expose and lead to syringe needle 11 to pollute in the air, the second seal cover 7 that sets up is used for sealing push rod 9, avoids push rod 9 to adsorb external dust, pushes away 4 in-process of cylinder at push rod 9, leads to 4 internal contamination of cylinder, thereby leads to the liquid medicine to be polluted.
The outer surface of cylinder 4 is provided with observation window 5, be provided with scale mark 6 on the observation window 5, observation window 5 and the scale mark 6 that set up for make things convenient for personnel to observe the capacity of the liquid medicine in the cylinder 4.
The second sealing sleeve 7 is made of an elastic transparent plastic film and is used for facilitating observation of the scale marks 6 and pressing of the push rod 9 by a person.
The inner side wall of the first sealing sleeve 1 is provided with a water absorption sponge 10, and the arranged water absorption sponge 10 is used for absorbing water drops of a needle point on the needle head 11.
The outer fixed surface of the threaded cover 2 is connected with a plurality of anti-skid protrusions 3, and the arranged anti-skid protrusions 3 are used for increasing the friction force when people contact with the threaded cover 2, so that the first sealing sleeve 1 can be conveniently disassembled and assembled by the people.
A sealing ring is arranged between the threaded cover 2 and the pintle 12 for further increasing the sealing property of the first sealing sleeve 1.
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 invention may be embodied in other specific forms without departing from the spirit or essential attributes 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. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The utility model provides a syringe needle seals dirt proof boot, includes cylinder (4), its characterized in that: a pintle (12) is fixedly connected with the left end face of the needle cylinder (4), a needle head (11) is fixedly connected with the left end face of the pintle (12), a first sealing sleeve (1) is sleeved outside the needle head (11), a threaded cover (2) is fixedly connected to the right end face of the first sealing sleeve (1), the outer surface of the pintle (12) is provided with an external thread, the inner side wall of the thread cover (2) is provided with an internal thread, the external thread is in threaded connection with the internal thread, the inner side wall of the needle cylinder (4) is connected with a piston in a sliding way, the right end face of the piston is fixedly connected with one end of a push rod (9), the other end of the push rod (9) extends out of the needle cylinder (4) and is fixedly connected with a pressing block (8), the outer surface of the pressing block (8) is fixedly connected with one end of a second sealing sleeve (7), the other end of the second sealing sleeve (7) is fixedly bonded with the outer surface of the needle cylinder (4).
2. The needle tip sealing boot of claim 1, wherein: the outer surface of the needle cylinder (4) is provided with an observation window (5), and scale marks (6) are arranged on the observation window (5).
3. The needle tip sealing boot of claim 2, wherein: the second sealing sleeve (7) is made of an elastic transparent plastic film.
4. The needle tip sealing boot of claim 3, wherein: and a water-absorbing sponge (10) is arranged on the inner side wall of the first sealing sleeve (1).
5. The needle tip sealing boot of claim 4, wherein: the outer surface of the threaded cover (2) is fixedly connected with a plurality of anti-skid bulges (3).
6. The needle tip sealing boot of claim 5, wherein: and a sealing ring is arranged between the threaded cover (2) and the pintle (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022590004.3U CN216136490U (en) | 2020-11-10 | 2020-11-10 | Needle head sealing dustproof sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022590004.3U CN216136490U (en) | 2020-11-10 | 2020-11-10 | Needle head sealing dustproof sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216136490U true CN216136490U (en) | 2022-03-29 |
Family
ID=80797394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022590004.3U Expired - Fee Related CN216136490U (en) | 2020-11-10 | 2020-11-10 | Needle head sealing dustproof sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216136490U (en) |
-
2020
- 2020-11-10 CN CN202022590004.3U patent/CN216136490U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220329 |