CN202161644U - Three-section spring structure for spring type safety syringe - Google Patents
Three-section spring structure for spring type safety syringe Download PDFInfo
- Publication number
- CN202161644U CN202161644U CN2011202476419U CN201120247641U CN202161644U CN 202161644 U CN202161644 U CN 202161644U CN 2011202476419 U CN2011202476419 U CN 2011202476419U CN 201120247641 U CN201120247641 U CN 201120247641U CN 202161644 U CN202161644 U CN 202161644U
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- spring
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- type safety
- safety syringe
- spring section
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Abstract
The utility model discloses a three-section spring structure for a spring type safety syringe, which is characterized in that a spring is in a three-section structure including a lower spring section, a middle spring section and an upper spring section, wherein the diameter of the lower spring section is larger than that of the middle spring section, the diameter of the middle spring section is larger than that of the upper spring section, the number of turns of the lower spring section ranges from one to thirty, the number of turns of the middle spring section ranges from ten to three hundreds, and the number of turns of the upper spring section ranges from one to thirty. Since the upper spring section and the lower spring section which are arranged at two ends of the spring have function of fixing, the three-section spring structure is ingenious in conception, simple in structure, molded at one step and capable of realizing full-automatic rear assembly for the spring type safety syringe. Since the spring is subjected to medium-temperature tempering, assembling speed and quality of the spring type safety syringe are increased effectively, the spring type safety syringe can be stable in work, and accordingly has substantial advantages and evident inventiveness as compared with the prior art.
Description
Technical field
This utility model relates to technical field of medical, a kind of specifically syllogic spring structure that is used for the spring type safety syringe, particularly its mechanical connecting structure.
Background technology
Documents, number of patent application: 201010604640.5, notification number: CN102068740A; The applying date: 2010.12.24; The patentee: Suyun Medical Equipment Co., Ltd., Jiangsu, this case discloses a kind of " automatic retracting type safety injector ", comprises overcoat and the core bar that is located in the overcoat; The overcoat front portion is connected with needle assembly, and needle assembly is provided with sheath; It is characterized in that: needle assembly comprises the outer seat of needle tubing, needle tubing seat and needle tubing, and the needle tubing seat is located on the needle tubing, and the rear end of needle tubing seat is provided with the engaging circular cone, and the outer cover for seat of needle tubing is located on the needle tubing seat, and the outer base rear end portion of needle tubing is provided with nipple; Described overcoat front end is provided with the outer cone locked joints that is connected with nipple, puts outward and also is connected with at least two elastic damping pawls that stretch out overcoat forward; Described core bar is the hollow core bar that is provided with inner chamber; The front portion of core bar is provided with the thromboembolism that stretches out inner chamber forward; The core bar front end is provided with the plug that connects core bar and thromboembolism, and the thromboembolism rear end is provided with the slip ring that cooperates with the core bar inwall, and the core bar inwall of slip ring rear side is provided with the bulge loop that stops slip ring; The thromboembolism that is in the inner chamber is provided with the compression spring, and described thromboembolism front end is provided with and engages the engaging cavity that circular cone matches.
Be not difficult to find out that from above-mentioned documents the spring that existing automatic retracting type syringe adopts is traditional design, need manual assisting during assembling, had a strong impact on product assembling speed and assembly quality, assembly precision is low, causes the product duty stable inadequately.
Summary of the invention
The purpose of this utility model is to provide a kind of syllogic spring structure that is used for the spring type safety syringe, can realize that syringe automatically assembles, and accurate positioning, and stable working state has overcome the shortcoming and defect that exists in the prior art.
To achieve these goals, the technical scheme of this utility model is: a kind of syllogic spring structure that is used for the spring type safety syringe, and it mainly comprises the spring body; It is characterized in that: said spring body is a three stage structure; Its hypomere spring diameter is greater than the stage casing spring diameter, and its stage casing spring diameter is greater than the epimere spring diameter, and the hypomere spring is 1-30 circles; The stage casing spring is 10-300 circles, and the epimere spring is 1-30 circles.
The utility model discloses a kind of syllogic spring structure that is used for the spring type safety syringe, epimere is used for fixing spring body two ends with following segment structure, and product conception is ingenious; Simple in structure, the time processing molding can realize the full-automatic rear portion assembling of spring type safety syringe; Effectively improved the assembling speed and the assembly quality of product, the spring body is through average tempering heat treatment, product stable working state; Compared to existing technologies, have outstanding substantive distinguishing features and marked improvement.
Description of drawings
Fig. 1 is this utility model structural representation.
Fig. 2 is this utility model user mode figure.
The specific embodiment
With reference to the accompanying drawings, this utility model is further described.
This utility model is a kind of syllogic spring structure that is used for the spring type safety syringe, and shown in figure, it mainly comprises spring body 1; It is different from prior art and is: said spring body 1 is three stage structure; Its hypomere spring 2 diameters are greater than stage casing spring 3 diameters, and its stage casing spring 3 diameters are greater than epimere spring 4 diameters, and hypomere spring 2 is 1-30 circle steel wires; Stage casing spring 3 is 10-300 circle steel wires, and epimere spring 4 is 1-30 circle steel wires.
In the specific implementation, the steel wire diameter of said spring body 1 is 0.1mm-2 mm.
In the specific implementation, the gap between said spring body 1 place's steel wire and the steel wire is 0.1mm-2 mm.
Above content is the further explain that combines concrete preferred implementation that this utility model is done, and can not assert that this utility model practical implementation is confined to above-mentioned these explanations.For the those of ordinary skill of technical field under this utility model, under the prerequisite that does not break away from this utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection domain of this utility model.
Claims (3)
1. syllogic spring structure that is used for the spring type safety syringe; It mainly comprises spring body (1), it is characterized in that: said spring body (1) is a three stage structure, and its hypomere spring (2) diameter is greater than stage casing spring (3) diameter; Its stage casing spring (3) diameter is greater than epimere spring (4) diameter; Hypomere spring (2) is 1-30 circles, and stage casing spring (3) is 10-300 circles, and epimere spring (4) is 1-30 circles.
2. a kind of syllogic spring structure that is used for the spring type safety syringe according to claim 1 is characterized in that: the steel wire diameter of said spring body (1) is 0.1mm-2 mm.
3. a kind of syllogic spring structure that is used for the spring type safety syringe according to claim 1 is characterized in that: the gap that said spring body (1) is located between steel wire and the steel wire is 0.1mm-2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202476419U CN202161644U (en) | 2011-07-14 | 2011-07-14 | Three-section spring structure for spring type safety syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202476419U CN202161644U (en) | 2011-07-14 | 2011-07-14 | Three-section spring structure for spring type safety syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202161644U true CN202161644U (en) | 2012-03-14 |
Family
ID=45797500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202476419U Expired - Fee Related CN202161644U (en) | 2011-07-14 | 2011-07-14 | Three-section spring structure for spring type safety syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202161644U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102872507A (en) * | 2011-07-14 | 2013-01-16 | 沈挺 | Three-section type spring structure for spring-type safety syringe |
-
2011
- 2011-07-14 CN CN2011202476419U patent/CN202161644U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102872507A (en) * | 2011-07-14 | 2013-01-16 | 沈挺 | Three-section type spring structure for spring-type safety syringe |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120314 Termination date: 20180714 |