CN205073428U - Injector - Google Patents
Injector Download PDFInfo
- Publication number
- CN205073428U CN205073428U CN201520808851.9U CN201520808851U CN205073428U CN 205073428 U CN205073428 U CN 205073428U CN 201520808851 U CN201520808851 U CN 201520808851U CN 205073428 U CN205073428 U CN 205073428U
- Authority
- CN
- China
- Prior art keywords
- needle tubing
- piston rod
- tubing body
- gear
- piston
- 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
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model provides an injector, including needle tubing body, piston, guide pin bushing, piston rod, pivot and gear, the piston is fixed the one end of piston rod, the limiting plate sets up the piston rod middle part is and be close to the position of piston, be provided with the insection on the piston rod, the piston rod has the one end of piston is inserted and is established inside the needle tubing body, on the pipe wall of needle tubing body along the dead slot has been offered on the length direction of needle tubing body, the gear sets up inside the dead slot, through the pivot with the needle tubing body rotates to be connected, insection on the gear with insection on the piston rod cooperatees. The beneficial effects of the utility model are that since adopt gear and the piston rod that has the rack want to join in marriage and the structure, can directly promote the gear when push pin, such way helps improving the stability when pushing pin, the shake of reduction needle tubing has improved the precision of pushing pin simultaneously.
Description
Technical field
This utility model relates to field of medical device, especially relates to a kind of syringe.
Background technology
Mostly syringe in existing technology is directly to use piston to push pin, when pushing pin, uneven due to what exert oneself, user can make syringe can shake the discomfort causing patient, easily causes the precision of pushing pin inaccurate because resistance is uneven simultaneously.
Utility model content
The purpose of this utility model is to provide the syringe that a kind of structure is simple, simple to operate, production efficiency is high.
The technical solution of the utility model is:
A kind of syringe, comprises needle tubing body, piston, guide pin bushing, piston rod, rotating shaft and gear;
Described piston is fixed on one end of described piston rod, and described limiting plate is arranged in the middle part of described piston rod and the position of close described piston, and described piston rod is provided with groove, and described groove is arranged along the length direction of described piston rod; Described piston rod is plugged in described needle tubing body interior with one end of described piston;
The tube wall of described needle tubing body offers dead slot on the length direction of described needle tubing body, it is inner that described gear is arranged on described dead slot, be rotationally connected by described rotating shaft and described needle tubing body, the groove on described gear matches with the groove on described piston rod.
Further, the top of described needle tubing body is provided with the cover plate that to be threaded with it, described cover plate is fixedly installed pin mouth, and described pin mouth is positioned at the outside of described needle tubing body.
Further, described pin mouth is positioned at the edge of described cover plate.
Further, described limiting plate profile is circular, and its external diameter is identical with the internal diameter of described needle tubing body.
The advantage that this utility model has and good effect are: owing to adopting technique scheme, this utility model has following features, due to adopt gear with want with the piston rod of tooth bar to join and structure, directly gear can be promoted when pushing pin, such way contributes to the stability improved when pushing pin, reduce the shake of needle tubing, improve the precision of pushing pin simultaneously.
Accompanying drawing explanation
Fig. 1 is sectional structure schematic diagram of the present utility model.
In figure:
1, pin mouth 2, cover plate 3, needle tubing body
4, piston 5, limiting plate 6, piston rod
7, gear 8, rotating shaft 9, dead slot
Detailed description of the invention
By particular specific embodiment, embodiment of the present utility model is described below, person skilled in the art scholar the content disclosed by this description can understand other advantages of the present utility model and effect easily.
Notice, structure, ratio, size etc. that this description institute accompanying drawings illustrates, content all only in order to coordinate description to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of this utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that this utility model can produce and the object that can reach, still all should drop on technology contents that this utility model discloses and obtain in the scope that can contain.Simultaneously, quote in this description as " on ", D score, "left", "right", " centre " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of this utility model, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of this utility model.
As shown in Figure 1, a kind of syringe, comprises needle tubing body 3, piston 4, guide pin bushing, piston rod 6, rotating shaft 8 and gear 7; Described piston 4 is fixed on one end of described piston rod 6, and described limiting plate 5 is arranged in the middle part of described the piston rod 6 and position of close described piston 4, and described piston rod 6 is provided with groove, and described groove is arranged along the length direction of described piston rod; Described piston rod 6 is plugged in described needle tubing body 3 inside with one end of described piston 4; The tube wall of described needle tubing body 3 offers dead slot 9 on the length direction of described needle tubing body 3, it is inner that described gear 7 is arranged on described dead slot 9, be rotationally connected with described needle tubing body 3 by described rotating shaft 8, the groove on described gear 7 matches with the groove on described piston rod 6; The top of described needle tubing body 3 is provided with the cover plate 2 that to be threaded with it, described cover plate 2 is fixedly installed pin mouth 1, and described pin mouth 1 is positioned at the outside of described needle tubing body 3; Described pin mouth 1 is positioned at the edge of described cover plate 2; Described limiting plate 5 profile is circular, and its external diameter is identical with the internal diameter of described needle tubing body 3.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to this utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (4)
1. a syringe, is characterized in that: comprise limiting plate, needle tubing body, piston, guide pin bushing, piston rod, rotating shaft and gear;
Described piston is fixed on one end of described piston rod, and described limiting plate is arranged in the middle part of described piston rod and the position of close described piston, and described piston rod is provided with groove, and described groove is arranged along the length direction of described piston rod; Described piston rod is plugged in described needle tubing body interior with one end of described piston;
The tube wall of described needle tubing body offers dead slot on the length direction of described needle tubing body, it is inner that described gear is arranged on described dead slot, and be rotationally connected by described rotating shaft and described needle tubing body, the groove on described gear matches with the groove on described piston rod.
2. syringe according to claim 1, is characterized in that: the top of described needle tubing body is provided with the cover plate that to be threaded with it, described cover plate is fixedly installed pin mouth, and described pin mouth is positioned at the outside of described needle tubing body.
3. syringe according to claim 2, is characterized in that: described pin mouth is positioned at the edge of described cover plate.
4. syringe according to claim 1, is characterized in that: described limiting plate profile is for circular, and its external diameter is identical with the internal diameter of described needle tubing body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520808851.9U CN205073428U (en) | 2015-10-16 | 2015-10-16 | Injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520808851.9U CN205073428U (en) | 2015-10-16 | 2015-10-16 | Injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205073428U true CN205073428U (en) | 2016-03-09 |
Family
ID=55425874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520808851.9U Expired - Fee Related CN205073428U (en) | 2015-10-16 | 2015-10-16 | Injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205073428U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107569743A (en) * | 2017-09-04 | 2018-01-12 | 宿迁市春明医疗器材有限公司 | A kind of resistance to irradiation antibacterial polypropylene syringe |
| CN108421131A (en) * | 2018-04-08 | 2018-08-21 | 复旦大学附属眼耳鼻喉科医院 | A kind of roller type multi injector |
| CN108578831A (en) * | 2018-03-07 | 2018-09-28 | 梁楠 | A kind of syringe preventing propulsive liquid excessive velocities |
| CN110612134A (en) * | 2017-05-05 | 2019-12-24 | 里珍纳龙药品有限公司 | Auto-injectors and related methods of use |
| CN112472921A (en) * | 2020-12-14 | 2021-03-12 | 北京欧扬医疗美容门诊部有限公司 | Improved plastic medicine injector |
| CN113101451A (en) * | 2021-04-06 | 2021-07-13 | 河南科技大学第一附属医院 | Liquid medicine filler and have nutrition pump in intestines of this filler |
-
2015
- 2015-10-16 CN CN201520808851.9U patent/CN205073428U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110612134A (en) * | 2017-05-05 | 2019-12-24 | 里珍纳龙药品有限公司 | Auto-injectors and related methods of use |
| CN107569743A (en) * | 2017-09-04 | 2018-01-12 | 宿迁市春明医疗器材有限公司 | A kind of resistance to irradiation antibacterial polypropylene syringe |
| CN108578831A (en) * | 2018-03-07 | 2018-09-28 | 梁楠 | A kind of syringe preventing propulsive liquid excessive velocities |
| CN108578831B (en) * | 2018-03-07 | 2021-02-23 | 青岛大学附属医院 | A syringe that prevents the liquid from being pushed too fast |
| CN108421131A (en) * | 2018-04-08 | 2018-08-21 | 复旦大学附属眼耳鼻喉科医院 | A kind of roller type multi injector |
| CN112472921A (en) * | 2020-12-14 | 2021-03-12 | 北京欧扬医疗美容门诊部有限公司 | Improved plastic medicine injector |
| CN113101451A (en) * | 2021-04-06 | 2021-07-13 | 河南科技大学第一附属医院 | Liquid medicine filler and have nutrition pump in intestines of this filler |
| CN113101451B (en) * | 2021-04-06 | 2022-07-19 | 河南科技大学第一附属医院 | A medicinal liquid injector and an enteral nutrition pump with the injector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160309 Termination date: 20161016 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |