CN102526841A - Upper connection seat structure for safety self-destruction syringe - Google Patents
Upper connection seat structure for safety self-destruction syringe Download PDFInfo
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- CN102526841A CN102526841A CN2010105851492A CN201010585149A CN102526841A CN 102526841 A CN102526841 A CN 102526841A CN 2010105851492 A CN2010105851492 A CN 2010105851492A CN 201010585149 A CN201010585149 A CN 201010585149A CN 102526841 A CN102526841 A CN 102526841A
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- syringe needle
- ring body
- syringe
- wall
- fixing auxiliary
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Abstract
The invention discloses an upper connection seat structure for a safety self-destruction syringe. The structure is different from the prior art in that: the inner cavity of a needle head fixing column is cylindrically hollow; 1+N upward left-handed thread bodies are arranged on the inner wall of the inner cavity of the needle head fixing column; all left-handed thread bodies are arranged on the same horizontal plane; the outer wall of a needle head fixing auxiliary ring body is provided with 1+N limiting convex ribs longitudinally distributed at equal intervals; the inner wall of the needle head fixing auxiliary ring body is provided with an internal thread; the outer wall of a round base is provided with an annular sealing convex rib; and an annular limiting step is formed between the lower end of the outer wall of the round base and the upper end of the outer wall of the needle head fixing auxiliary ring body. The concept of the product design is skilful; in practical use, full-automatic rear assembly can be realized, the daily output of the product is effectively increased, the comprehensive cost of the product is lowered, and the market competitiveness of the product is improved; and compared with the prior art, the upper connection seat structure disclosed by the invention has outstanding substantial characteristics and obvious progress.
Description
Technical field
The present invention relates to technical field of medical, a kind of specifically upper connecting base structure that is used for safety self-destructing syringe, particularly its mechanical connecting structure.
Background technology
Documents one; The patent No.: 200520016075.5; Notification number: CN2748099; Patentee: Gongchuang Medical Instrument Science-Technology Co., Ltd., Danyang City; This case discloses a kind of " safety injector that syringe needle can bounce back automatically ", includes syringe cylinder, barrel type push bar, needle stand, injection needle, O RunddichtringO, stage clip thromboembolism, compression spring, sealed rubber ring, is used to protect the entry needle protective cap and the piston of injection needle, and said injection needle is fixed in the said needle stand; It is characterized in that: the front end of said syringe cylinder is provided with the fixture that is used for fixing needle stand and stage clip thromboembolism; One end of said needle stand and fixture is through O RunddichtringO sealing and fixing, and said stage clip thromboembolism is fixedly connected with the other end of said fixture, between said needle stand and stage clip thromboembolism, is provided with can needle stand and injection needle be pushed the inner compression spring of barrel type push bar; Said barrel type push bar is plugged in the said syringe cylinder; This barrel type push bar is positioned at the inner said sealed rubber ring of end outside suit of said syringe cylinder; The inboard is fixed with can get into the inner piston of barrel type push bar under the effect of said needle stand propulsive thrust; The other end of said barrel type push bar extends said syringe cylinder, and is equipped with one at this end that extends syringe cylinder and pushes away end, and this pushes away end and includes the end of pressing hands and being connected with barrel type push bar; One end tight fit of said end and barrel type push bar; And be provided with in the end to be used to control and push away the plectane that end gets into the barrel type push bar degree of depth and sealing barrel type push bar, on this plectane, be provided with a through hole, the said hands of pressing is being connected for being prone to folded structure with the junction of plectane.
Documents two; The patent No.: 200710124562.7; Notification number: CN101161304; The patentee: Shenzhen Lijunda Technology Development Co., Ltd., this case discloses a kind of " automatic whip-back needle safety self-breaking syringe ", and it comprises a syringe, a push rod tube, a push rod seal circle, a resilience rubber band; This syringe comprises the cylindrical shell of an inner hollow, and the bottom end opening place of this cylindrical shell is provided with a diapire; This push rod tube comprises that one is plugged in this intravital body of rod; It is characterized in that: offer a hook groove on the top inwall of this cylindrical shell; This push rod tube comprises that one is located at the fixed part of this body of rod bottom, the inner hollow of this body of rod and form a motion cavity; On this push rod seal circle fixed part that should the push rod tube is provided with a junction, this connecting portion is connected with fixed part and the push rod seal circle is installed in the bottom of this body of rod; This syringe also comprises a connecting seat, and this Connection Block is installed in this push rod seal circle and stretches in the motion cavity of this body of rod, and this Connection Block comprises a body, and this body middle part offers a tank; This syringe comprises that also one is installed in the top of this Connection Block and stretches into the buckle connecting rod in the motion cavity of this body of rod; The hook that can corresponding be hooked on the hook groove of this cylindrical shell is equipped with on this buckle connecting rod top, and this buckle connecting rod top is concaved with a groove downwards; This resilience rubber band is the elastic tape of a sealing, and this resilience rubber band is set between the groove of tank and this buckle connecting rod of this Connection Block, and this Connection Block and buckle connecting rod are coupled together.
From above-mentioned documents, be not difficult to find out; Existing safe syringe and self-destruction syringe structure more complicated in order to realize the functional of its expection, often adopt the multi-part assembling on design drawing; Though can realize in theory; But in actual production, have following shortcoming: 1, complex structure, die sinking cost are higher, and certain structures can't be carried out die sinking at all, and some modular construction need be carried out the secondary demoulding; 2, product precision is low, and the sealing between the parts is poor; 3, because structural defective causes the medicinal liquid residual quantity big, uncontrollable injecting liquid drug amount.
So still need further improve to existing safe syringe, self-destruction syringe modular construction.
Summary of the invention
The object of the present invention is to provide a kind of upper connecting base structure that is used for safety self-destructing syringe, it can realize the exchangeable needle project organization, and adopts the inner-rotary type assembling; Stability is better; Integral type annular seal bead structure has been guaranteed the sealing between the last lower connecting base, has saved traditional single-piece rubber seal again; Simplify assembling procedure, overcome the shortcoming and defect that exists in the prior art.
To achieve these goals; Technical scheme of the present invention is: a kind of upper connecting base structure that is used for safety self-destructing syringe, and it comprises the fixing auxiliary ring body of syringe needle of structure in the form of a ring, the interior centre bit of the fixing auxiliary ring body of syringe needle is provided with the syringe needle fixed leg; Fixing auxiliary ring body of syringe needle and syringe needle fixed leg are concentric circles; Form annular gap between the fixing auxiliary ring body of syringe needle and the syringe needle fixed leg, the bottom that syringe needle is fixing assists ring body and syringe needle fixed leg is through the cup dolly structure that links into an integrated entity, and it is characterized in that: said syringe needle fixed leg inner chamber is cylinder hollow; The cavity wall place is provided with 1+N the body of setting one's teeth on edge that makes progress in the syringe needle fixed leg; All bodies of setting one's teeth on edge all are arranged on the same horizontal plane, and the syringe needle fixedly external wall of subring is provided with the retaining convex rib that the 1+N bar vertically equidistantly distributes, and the fixing auxiliary inner wall of ring body place of syringe needle is provided with female thread; The outer wall place of cup dolly is provided with the annular seal convex tendon, and cup dolly outer wall lower end and syringe needle fixedly form the ring-type limited step between the external wall of the subring upper end.
The invention discloses a kind of upper connecting base structure that is used for safety self-destructing syringe, it can be used for safe syringe and self-destruction syringe, and the product global design is rational in infrastructure; Can realize a demoulding, integral type annular seal bead structure can be guaranteed to go up sealing and the connectivity between the lower connecting base, has saved traditional sealed rubber ring; Simplified the assembly process of syringe; The retaining convex rib of upper connecting base outer wall can prevent effectively that upper connecting base from rotating in cylindrical shell, product design is skillfully constructed, and can realize the assembling of full-automatic rear portion in actual use; Effectively improved the daily output of product; Reduce the integrated cost of product, improved the competitiveness of product in market, had outstanding substantive distinguishing features and marked improvement compared to existing technologies.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a vertical view of the present invention.
The specific embodiment
With reference to the accompanying drawings, the present invention is further described.
The present invention is a kind of upper connecting base structure that is used for safety self-destructing syringe; It comprises the fixing auxiliary ring body 1 of syringe needle of structure in the form of a ring; The interior centre bit of the fixing auxiliary ring body 1 of syringe needle is provided with syringe needle fixed leg 2; The fixing auxiliary ring body 1 of syringe needle is concentric circles with syringe needle fixed leg 2, forms annular gap 3 between the fixing auxiliary ring body 1 of syringe needle and the syringe needle fixed leg 2, and the bottom of fixing auxiliary ring body 1 of syringe needle and syringe needle fixed leg 2 is through cup dolly 4 structure that links into an integrated entity; It is different from prior art and is: said syringe needle fixed leg 2 inner chambers are cylinder hollow; The cavity wall place is provided with 1+N the body 5 of setting one's teeth on edge that makes progress (match with the syringe core rod end construction, realize the effect that needle holder portion integral body is pulled back) in the syringe needle fixed leg 2, and all bodies 5 of setting one's teeth on edge all are arranged on the same horizontal plane; Fixing auxiliary ring body 1 outer wall of syringe needle is provided with the retaining convex rib 6 that the 1+N bar vertically equidistantly distributes; The fixing auxiliary ring body 1 inwall place of syringe needle is provided with female thread 7, and the outer wall place of cup dolly 4 is provided with annular seal convex tendon 8, and fixing auxiliary ring body 1 outer wall of cup dolly 4 outer wall lower ends and syringe needle forms ring-type limited step 9 between the upper end.
In the specific implementation, said syringe needle fixed leg 2 inner chamber upper shed interior diameters are 1.1mm-3.2mm.
In the specific implementation, fixing auxiliary ring body 1 overall diameter of said syringe needle is 3mm-16mm.
In the specific implementation, said cup dolly 4 bottom overall diameters are 2mm-15mm.
In the specific implementation, the height between said annular seal convex tendon 8 lower limbs and the ring-type limited step 9 is 0.2mm-5mm.
In the specific implementation, the height between said annular seal convex tendon 8 lower limbs and cup dolly 4 bottoms is 0.5mm-7mm.
In the specific implementation, the height between said syringe needle fixed leg 2 upper ends and cup dolly 4 bottoms is 7mm-20mm.
In the specific implementation, said N is a nonnegative integer.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to above-mentioned these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace, all should be regarded as belonging to protection scope of the present invention.
Claims (8)
1. upper connecting base structure that is used for safety self-destructing syringe; It comprises the fixing auxiliary ring body (1) of syringe needle of structure in the form of a ring; The interior centre bit of the fixing auxiliary ring body (1) of syringe needle is provided with syringe needle fixed leg (2); The fixing auxiliary ring body (1) of syringe needle is concentric circles with syringe needle fixed leg (2); Form annular gap (3) between the fixing auxiliary ring body (1) of syringe needle and the syringe needle fixed leg (2), the bottom of fixing auxiliary ring body (1) of syringe needle and syringe needle fixed leg (2) is through cup dolly (4) structure that links into an integrated entity, and it is characterized in that: said syringe needle fixed leg (2) inner chamber is cylinder hollow; The interior cavity wall of syringe needle fixed leg (2) place is provided with 1+N the body of setting one's teeth on edge (5) that makes progress; All bodies of setting one's teeth on edge (5) all are arranged on the same horizontal plane, and fixing auxiliary ring body (1) outer wall of syringe needle is provided with the retaining convex rib (6) that the 1+N bar vertically equidistantly distributes, and fixing auxiliary ring body (1) the inwall place of syringe needle is provided with female thread (7); The outer wall place of cup dolly (4) is provided with annular seal convex tendon (8), and fixing auxiliary ring body (1) outer wall of cup dolly (4) outer wall lower end and syringe needle forms ring-type limited step (9) between the upper end.
2. a kind of upper connecting base structure that is used for safety self-destructing syringe according to claim 1 is characterized in that: said syringe needle fixed leg (2) inner chamber upper shed interior diameter is 1.1mm-3.2mm.
3. a kind of upper connecting base structure that is used for safety self-destructing syringe according to claim 1 is characterized in that: fixing auxiliary ring body (1) overall diameter of said syringe needle is 3mm-16mm.
4. a kind of upper connecting base structure that is used for safety self-destructing syringe according to claim 1 is characterized in that: said cup dolly (4) bottom overall diameter is 2mm-15mm.
5. a kind of upper connecting base structure that is used for safety self-destructing syringe according to claim 1 is characterized in that: the height between said annular seal convex tendon (8) lower limb and the ring-type limited step (9) is 0.2mm-5mm.
6. a kind of upper connecting base structure that is used for safety self-destructing syringe according to claim 1 is characterized in that: the height between said annular seal convex tendon (8) lower limb and cup dolly (4) bottom is 0.5mm-7mm.
7. a kind of upper connecting base structure that is used for safety self-destructing syringe according to claim 1 is characterized in that: the height between said syringe needle fixed leg (2) upper end and cup dolly (4) bottom is 7mm-20mm.
8. a kind of upper connecting base structure that is used for safety self-destructing syringe according to claim 1, it is characterized in that: said N is a nonnegative integer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105851492A CN102526841A (en) | 2010-12-13 | 2010-12-13 | Upper connection seat structure for safety self-destruction syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105851492A CN102526841A (en) | 2010-12-13 | 2010-12-13 | Upper connection seat structure for safety self-destruction syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102526841A true CN102526841A (en) | 2012-07-04 |
Family
ID=46335643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105851492A Pending CN102526841A (en) | 2010-12-13 | 2010-12-13 | Upper connection seat structure for safety self-destruction syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102526841A (en) |
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2010
- 2010-12-13 CN CN2010105851492A patent/CN102526841A/en active Pending
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120704 |