CN204106744U - Syringe - Google Patents
Syringe Download PDFInfo
- Publication number
- CN204106744U CN204106744U CN201420577053.5U CN201420577053U CN204106744U CN 204106744 U CN204106744 U CN 204106744U CN 201420577053 U CN201420577053 U CN 201420577053U CN 204106744 U CN204106744 U CN 204106744U
- Authority
- CN
- China
- Prior art keywords
- syringe
- connecting rod
- movable head
- axle sleeve
- push
- 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
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a kind of syringe, comprise syringe needle, syringe and push-rod assembly, what described push-rod assembly slided is arranged in syringe, described push-rod assembly comprises connecting rod and movable head, the size of described movable head and syringe is adaptive, it is characterized in that: the sidewall of described syringe is provided with chute, the length direction of described chute is identical with the length direction of syringe, the slide block of slip is provided with in described chute, described slide block is fixed with axle sleeve, described axle sleeve is threaded with connecting rod, described syringe is provided with scale, the precision of described scale is greater than the pitch of described screw thread, by adopting above-mentioned scheme, when extracting the liquid of certain volume, the mode of horizontal sliding is first adopted to extract quite close liquid volume, screw thread between recycling sleeve and connecting rod, the mode rotated is utilized to make up the operational error of mode of horizontal sliding.
Description
Technical field
This utility model relates to a kind of syringe, and more particularly, it relates to a kind of horizontal sliding syringe reducing operate miss.
Background technology
At present, along with the fast development of science and technology, improving constantly of medical level, the application of syringe is more and more extensive, is mainly used for medically.Most syringe is all the syringe of flat push type, and the syringe of flat push type is comparatively convenient, and the process of drawing and injecting is more convenient, but error is larger.Some syringe is spiral syringe, the mainly injection of some micro liquids, very high precision, but operation is comparatively complicated.The error of horizontal sliding syringe is on the one hand from the error that the precision of scale is brought; Be the error because manual operation brings on the other hand, main cause is that the process that the advance ratio pushed away turns wants large, and people is when force, power is uneven, and adopt the structure of machinery to push, so cost is very expensive, one is needed effectively to reduce operate miss, and the simple syringe of structure.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of syringe, this syringe mainly flat push type, the function of additional spiral, the facility of flat push type is precisely combined with screw type operation, effectively solves the error in injector operations.
For achieving the above object, this utility model provides following technical scheme:
A kind of syringe, comprise syringe needle, syringe and push-rod assembly, what described push-rod assembly slided is arranged in syringe, described push-rod assembly comprises connecting rod and movable head, the size of described movable head and syringe is adaptive, the sidewall of described syringe is provided with chute, the length direction of described chute is identical with the length direction of syringe, be provided with the slide block of slip in described chute, described slide block is fixed with axle sleeve, described axle sleeve is threaded with connecting rod, described syringe is provided with scale, and the precision of described scale is greater than the pitch of described screw thread.
By adopting such scheme, using syringe to draw certain liquid, requiring that liquid volume is one milliliter.Inserted in liquid by the syringe needle of syringe before this, pulling connecting rod, and connecting rod is fixedly connected with movable head, therefore, movable head can follow connecting rod to move together, thus reaches the object be drawn into by liquid in syringe.Sleeve is threaded with connecting rod, and the motion of connecting rod drives the motion of sleeve, and sleeve at syringe internal slide, so can not hinder the motion of connecting rod, thus does not affect the absorption of liquid by slide block.Time initial, movable head and syringe sealing, not having air in syringe, is a vacuum state, and after elasticity movable head moves, elasticity movable head and syringe inwall form cavity, are negative pressure in cavity, and liquid is sent into syringe inside by extraneous atmospheric pressure.Before this when the liquid level of liquid and movable head and liquid comes into contact one side soon close to scale for the moment, use the mode of rotation instead.Pivot link, due to the existence of slide block, therefore axle sleeve can not syringe inner rotation again, because axle sleeve and connecting rod are threaded, makes movable head can rest on the position of scale one more exactly.In addition, when the liquid extracted is too much, the mode of rotation can also be utilized, by unnecessary fluid removal syringe.
Preferably, described axle sleeve is fixed with gag lever post, the described bar that is positioned at is positioned at axle sleeve one end back to syringe needle.
Preferably, the sidewall of described movable head is provided with coaxial annular groove arranged with it, and be provided with O-ring seal in described annular groove, described O-ring seal and syringe inwall are formed and be sealed and matched.
Compared with prior art, this uses novel beneficial effect to be: use syringe to draw certain liquid, require that liquid volume is one milliliter.Inserted in liquid by the syringe needle of syringe before this, pulling connecting rod, and connecting rod is fixedly connected with movable head, therefore, movable head can follow connecting rod to move together, thus reaches the object be drawn into by liquid in syringe.Sleeve is threaded with connecting rod, and the motion of connecting rod drives the motion of sleeve, and sleeve at syringe internal slide, so can not hinder the motion of connecting rod, thus does not affect the absorption of liquid by slide block.Time initial, movable head and syringe sealing, not having air in syringe, is a vacuum state, and after elasticity movable head moves, elasticity movable head and syringe inwall form cavity, are negative pressure in cavity, and liquid is sent into syringe inside by extraneous atmospheric pressure.Before this when the liquid level of liquid and movable head and liquid comes into contact one side soon close to scale for the moment, use the mode of rotation instead.Pivot link, due to the existence of slide block, therefore axle sleeve can not syringe inner rotation again, because axle sleeve and connecting rod are threaded, makes movable head can rest on the position of scale one more exactly.In addition, when the liquid extracted is too much, the mode of rotation can also be utilized, by unnecessary fluid removal syringe.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model syringe embodiment;
Fig. 2 is the cross-sectional view of this utility model syringe embodiment.
Description of reference numerals: 1, syringe needle; 2, syringe; 21, chute; 3, push-rod assembly; 31, connecting rod; 32, movable head; 321, annular groove; 4, axle sleeve; 5, gag lever post; 6, slide block; 7, O-ring seal.
Detailed description of the invention
With reference to accompanying drawing, this utility model syringe embodiment is described in further details.
A kind of syringe, comprise syringe needle, syringe and push-rod assembly, what described push-rod assembly slided is arranged in syringe, described push-rod assembly comprises connecting rod and movable head, the size of described movable head and syringe is adaptive, the sidewall of described syringe is provided with chute, the length direction of described chute is identical with the length direction of syringe, the slide block of slip is provided with in described chute, described slide block is fixed with axle sleeve, described axle sleeve is threaded with connecting rod, described syringe is provided with scale, the precision of described scale is greater than the pitch of described screw thread, syringe is used to draw certain liquid, require that liquid volume is one milliliter.Inserted in liquid by the syringe needle of syringe before this, pulling connecting rod, and connecting rod is fixedly connected with movable head, therefore, movable head can follow connecting rod to move together, thus reaches the object be drawn into by liquid in syringe.Sleeve is threaded with connecting rod, and the motion of connecting rod drives the motion of sleeve, and sleeve at syringe internal slide, so can not hinder the motion of connecting rod, thus does not affect the absorption of liquid by slide block.Time initial, movable head and syringe sealing, not having air in syringe, is a vacuum state, and after elasticity movable head moves, elasticity movable head and syringe inwall form cavity, are negative pressure in cavity, and liquid is sent into syringe inside by extraneous atmospheric pressure.Before this when the liquid level of liquid and movable head and liquid comes into contact one side soon close to scale for the moment, use the mode of rotation instead.Pivot link, due to the existence of slide block, therefore axle sleeve can not syringe inner rotation again, because axle sleeve and connecting rod are threaded, makes movable head can rest on the position of scale one more exactly.In addition, when the liquid extracted is too much, the mode of rotation can also be utilized, by unnecessary fluid removal syringe.
Axle sleeve is fixed with gag lever post, the described bar that is positioned at is positioned at axle sleeve one end back to syringe needle, one end of gag lever post protrudes from syringe, when needs pivot link time, gag lever post is pinned by a hands, thus reach the object preventing skid, prevent from moving at the process bottom bracket axle of swivel link, improve precision.
The sidewall of movable head is provided with coaxial annular groove arranged with it, O-ring seal is provided with in described annular groove, described O-ring seal and syringe inwall are formed and are sealed and matched, pass through O-ring seal, increase the sealing between movable head and syringe inwall, improve the precision of this syringe further.
The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under this utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under this utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (3)
1. a syringe, comprise syringe needle, syringe and push-rod assembly, what described push-rod assembly slided is arranged in syringe, described push-rod assembly comprises connecting rod and movable head, the size of described movable head and syringe is adaptive, it is characterized in that: the sidewall of described syringe is provided with chute, the length direction of described chute is identical with the length direction of syringe, the slide block of slip is provided with in described chute, described slide block is fixed with axle sleeve, described axle sleeve is threaded with connecting rod, described syringe is provided with scale, the precision of described scale is greater than the pitch of described screw thread.
2. syringe according to claim 1, is characterized in that: described axle sleeve is fixed with gag lever post, and the described bar that is positioned at is positioned at axle sleeve one end back to syringe needle.
3. syringe according to claim 1, is characterized in that: the sidewall of described movable head is provided with coaxial annular groove arranged with it, and be provided with O-ring seal in described annular groove, described O-ring seal and syringe inwall are formed and be sealed and matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420577053.5U CN204106744U (en) | 2014-10-08 | 2014-10-08 | Syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420577053.5U CN204106744U (en) | 2014-10-08 | 2014-10-08 | Syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204106744U true CN204106744U (en) | 2015-01-21 |
Family
ID=52324109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420577053.5U Expired - Fee Related CN204106744U (en) | 2014-10-08 | 2014-10-08 | Syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204106744U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065869A (en) * | 2020-09-02 | 2020-12-11 | 珠海具方达科技有限公司 | Novel shaft sleeve for spiral structure |
-
2014
- 2014-10-08 CN CN201420577053.5U patent/CN204106744U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065869A (en) * | 2020-09-02 | 2020-12-11 | 珠海具方达科技有限公司 | Novel shaft sleeve for spiral structure |
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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: 20150121 Termination date: 20151008 |
|
| EXPY | Termination of patent right or utility model |