CN201969140U - Upper connecting seat structure used for safety self-destruction syringe - Google Patents
Upper connecting seat structure used for safety self-destruction syringe Download PDFInfo
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- CN201969140U CN201969140U CN201020655782XU CN201020655782U CN201969140U CN 201969140 U CN201969140 U CN 201969140U CN 201020655782X U CN201020655782X U CN 201020655782XU CN 201020655782 U CN201020655782 U CN 201020655782U CN 201969140 U CN201969140 U CN 201969140U
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- syringe needle
- ring body
- syringe
- wall
- fixing auxiliary
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Abstract
The utility model discloses an upper connecting seat structure used for a safety self-destruction syringe; compared with the prior art, the structure has difference that an inner cavity of a fixing column of a needle head is cylindrical and hollow; 1+N upward left-handed thread bodies are arranged on the inner wall of the inner cavity of the fixing column of the needle head; all the left-handed thread bodies are arranged on the same horizontal plane; the outer wall of a fixing auxiliary ring body of the needle head is provided with 1+N limiting convex ribs that are distributed in an equidistant way along the longitudinal direction; the inner wall of the fixing auxiliary ring body of the needle head is provided with inner screw threads; the outer wall of a circular 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 circular base and the upper end of the outer wall of the fixing auxiliary ring body of the needle head. The product design conception is ingenious, when the structure is used practically, full automatic rear assembly can be realized, daily output of products is effectively improved, the aggregate cost of the products is lowered, and the market competitiveness of the products is improved; and compared with the prior art, the structure has the characteristics of prominent substantiality and remarkable progress.
Description
Technical field
This utility model 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 ", include syringe cylinder, barrel type push bar, needle stand, injection needle, the O RunddichtringO, the stage clip thromboembolism, the compression spring, sealed rubber ring, be used to protect the entry needle protective cap and the piston of injection needle, described injection needle is fixed in the described needle stand, it is characterized in that: the front end of described syringe cylinder is provided with the fixture that is used for fixing needle stand and stage clip thromboembolism, one end of described needle stand and fixture is by O RunddichtringO sealing and fixing, described stage clip thromboembolism is fixedlyed connected with the other end of described fixture, is provided with the compression spring that needle stand and injection needle can be pushed barrel type push bar inside between described needle stand and stage clip thromboembolism; Described barrel type push bar is plugged in the described syringe cylinder, this barrel type push bar is positioned at the described sealed rubber ring of end outside suit of described syringe cylinder inside, the inboard is fixed with the piston that can enter barrel type push bar inside under the effect of described needle stand propulsive thrust, the other end of described barrel type push bar extends described syringe cylinder, and be equipped with one at this end that extends syringe cylinder and push away end, this pushes away end and includes an end of pressing hands and being connected with barrel type push bar, one end tight fit of described 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 enters the barrel type push bar degree of depth and sealing barrel type push bar, be provided with a through hole on this plectane, described is being that easy folded structure is connected by hands with the junction of plectane.
Documents two, the patent No.: 200710124562.7, notification number: CN101161304, 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 buckle connecting rod in the motion cavity of this body of rod, a 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 the tank of this Connection Block and this buckle connecting rod, 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 on design drawing, adopt the multi-part assembling, though can realize in theory, but have following shortcoming in actual production: 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 existing safe syringe, self-destruction syringe modular construction are further improved.
Summary of the invention
The purpose of this utility model 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 adopt inner-rotary type to assemble, 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, the technical solution of the utility model is: a kind of upper connecting base structure that is used for safety self-destructing syringe, 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 fixing auxiliary ring body of syringe needle and the syringe needle fixed leg, the bottom of fixing auxiliary ring body of syringe needle and syringe needle fixed leg is by the cup dolly structure that links into an integrated entity, it is characterized in that: described 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, the syringe needle fixedly external wall of subring is provided with the retaining convex rib that the 1+N bar vertically equidistantly distributes, 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 utility model 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, the product global design is rational in infrastructure, can realize a demoulding, integral type annular seal bead structure can guarantee to go up sealing and the connectivity between the lower connecting base, 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, 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 this utility model structural representation.
Fig. 2 is this utility model vertical view.
The specific embodiment
With reference to the accompanying drawings, this utility model further is described.
This utility model 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, form annular gap 3 between fixing auxiliary ring body 1 of syringe needle and the syringe needle fixed leg 2, the bottom of the fixing auxiliary ring body 1 of syringe needle and syringe needle fixed leg 2 is by cup dolly 4 structure that links into an integrated entity, it is different from prior art and is: described syringe needle fixed leg 2 inner chambers are cylinder hollow, syringe needle fixed leg 2 interior cavity wall places are provided with 1+N the body 5(that sets one's teeth on edge that makes progress and match with the syringe core rod end construction, realize the effect that needle holder portion integral body is pulled back), 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, 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, described 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 described syringe needle is 3mm-16mm.
In the specific implementation, described cup dolly 4 bottom overall diameters are 2mm-15mm.
In the specific implementation, the height between described 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 described annular seal convex tendon 8 lower limbs and cup dolly 4 bottoms is 0.5mm-7mm.
In the specific implementation, the height between described syringe needle fixed leg 2 upper ends and cup dolly 4 bottoms is 7mm-20mm.
In the specific implementation, described N is a nonnegative integer.
Above content be in conjunction with concrete preferred implementation to further describing that this utility model is done, can not assert that concrete enforcement of the present utility model is confined to above-mentioned these explanations.For this utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from this utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
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 fixing auxiliary ring body (1) of syringe needle and the syringe needle fixed leg (2), the bottom of the fixing auxiliary ring body (1) of syringe needle and syringe needle fixed leg (2) is by cup dolly (4) structure that links into an integrated entity, it is characterized in that: described 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, 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, 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: described 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 described 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: described 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 described 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 described 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 described 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: described N is a nonnegative integer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020655782XU CN201969140U (en) | 2010-12-13 | 2010-12-13 | Upper connecting seat structure used for safety self-destruction syringe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020655782XU CN201969140U (en) | 2010-12-13 | 2010-12-13 | Upper connecting seat structure used for safety self-destruction syringe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201969140U true CN201969140U (en) | 2011-09-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020655782XU Expired - Fee Related CN201969140U (en) | 2010-12-13 | 2010-12-13 | Upper connecting seat structure used for safety self-destruction syringe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201969140U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103446646A (en) * | 2012-08-24 | 2013-12-18 | 江苏亿乐医疗用品有限公司 | Core rod locking member |
-
2010
- 2010-12-13 CN CN201020655782XU patent/CN201969140U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103446646A (en) * | 2012-08-24 | 2013-12-18 | 江苏亿乐医疗用品有限公司 | Core rod locking member |
| CN103446646B (en) * | 2012-08-24 | 2015-11-18 | 江苏亿乐医疗用品有限公司 | A kind of core bar locking piece |
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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: 20110914 Termination date: 20161213 |