CN2602773Y - Syringe with improved push-rod limiting structure - Google Patents
Syringe with improved push-rod limiting structure Download PDFInfo
- Publication number
- CN2602773Y CN2602773Y CN 03202168 CN03202168U CN2602773Y CN 2602773 Y CN2602773 Y CN 2602773Y CN 03202168 CN03202168 CN 03202168 CN 03202168 U CN03202168 U CN 03202168U CN 2602773 Y CN2602773 Y CN 2602773Y
- Authority
- CN
- China
- Prior art keywords
- syringe
- push rod
- stopping bar
- stop
- backstop structure
- 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 an injector that is made of improved push rod stop structure which is applied to connection of needle. The injector comprises a syringe which is provided with a syringe body with the shape of a straight column with a containing hole. A first stop part is formed inside the containing hole and a second stop part is, with the shape of a flange, arranged at the preset position of the opening section that opens backwards and that is arranged on the containing hole where corresponds with the first stop part. A stop pole piece takes the shape of a cone ring plate and is provided with a ring plate body. The inner side and the outside of the stop pole piece are provided with an inner contact face and the outside contact face which is the first contact part that can contact the syringe. A large diameter edge and a small diameter edge are formed at a stop cylinder part and a stop pole part respectively. The stop cylinder part the second contact part that can contact the syringe. The length of at least one groove is preset by the stop pole. A pull pole has a pole body that takes the shape of a long pole. A backstop part can glidingly contact the containing hole of the syringe and can cross the stop pole part by the stop cylinder part of the stop pole, the stop pole part of the stop pole piece blocks the pulling back, a pull and push part is arranged at the rear part of the utility model for the hand to pull and push.
Description
Technical field
This utility model relates to safety injector, is meant a kind of syringe of improveing push rod backstop structure especially.
Background technology
General syringe at present great majority all have the design push rod can pull back to the precalculated position, push rod can be fractureed after pulling back.
But general location structure is only to establish a block edge in the containing hole of this syringe, in order to the predetermined position or the plug of block push rod; But, known like this structure, its push rod is very easy to because pullout forces is improper, and makes whole push rod be drawn out, and the card that can not reach expection ends effect, and this push rod do not fracture, and this is its major defect place.
Moreover if will design bigger Stop structure makes push rod be difficult for being drawn out, its push rod could produce bigger resistance at the containing hole that inserts syringe, does not have convenience and make assembling and use, and remains to be improved!
The utility model content
Main purpose of the present utility model is promptly providing a kind of syringe of improveing push rod backstop structure, and it utilizes this stopping bar spare can make this push rod be installed up to the containing hole of this syringe easily.
An of the present utility model purpose more providing a kind of syringe of improveing push rod backstop structure, and it is limited to this stopping bar spare effectively when push rod is retracted and is not easy.
For achieving the above object, this utility model provides a kind of syringe of improveing push rod backstop structure, is to establish for connecing of a syringe needle, and this syringe includes:
One syringe has the stack shell of a straight-tube shape, and it has provided a containing hole, and one first supports portion is formed at this containing hole inboard, and one second supports portion is flange shape this containing hole this first precalculated position of open section backward of supporting portion relatively of being located at;
One stopping bar spare, be to be the conical ring plate shape, has a ring plate body, outside is formed with the face that supports in one and an outer face that supports respectively in it, should outer support face and be and to be located at first of this syringe and to support portion for supporting, one ends tube portion and a stopping bar portion is formed at its bigger diameter end edge and path ora terminalis respectively, should end tube portion and be can be located at this syringe second to portion, at least one ditch of escaping is offered predetermined length by this stopping bar portion;
One push rod has a shaft and is the stock body, and one moves back stopper can slide the containing hole that is butted on this syringe, and it can be plugged by stopping bar portion by the tube portion of ending of this stopping bar spare, retracts the stopping bar portion block that then is subjected to this stopping bar spare, and a push-and-pull portion is located at its rear end and uses for the push-and-pull of finger.
The syringe of described improvement push rod backstop structure, wherein first of this syringe to support portion be shape triangular in shape.
The syringe of described improvement push rod backstop structure wherein first of this syringe supports portion and is the fin shape.
The syringe of described improvement push rod backstop structure, wherein this syringe has more a shell fragment, and first to support portion promptly be the free end inner edge of being located at this shell fragment for this.
The syringe of described improvement push rod backstop structure, wherein this syringe has more an installing and mouthful can be installed by side direction for this stopping bar spare.
The syringe of described improvement push rod backstop structure, wherein the ditch quantity of escaping of this stopping bar spare is to be four, ends shell fragment and be formed with four cards.
The syringe of described improvement push rod backstop structure, wherein the ditch of escaping of this stopping bar spare is only to be one and open-minded fully.
The syringe of described improvement push rod backstop structure, wherein this stopping bar spare has at least one ditch of escaping in addition and ends tube portion by this and offer predetermined length.
The syringe of described improvement push rod backstop structure, it more includes the front end that a plug is located at this push rod.
The syringe of described improvement push rod backstop structure, wherein this first longitudinal cross-section of supporting portion is to be poroid by the taper of big convergent to needle end.
Characteristics of the present utility model are as follows:
1. this utility model is improved the syringe of push rod backstop structure, and it utilizes this stopping bar spare can make this push rod be installed up to the containing hole of this syringe easily.
2. this utility model is improved the syringe of push rod backstop structure, and it is limited to this stopping bar spare effectively when push rod is retracted and is not easy.
Description of drawings
Fig. 1 is the exploded perspective view of this utility model one preferred embodiment.
Fig. 2 is the side-looking decomposing section of this utility model one preferred embodiment.
Fig. 3 is the side-looking combination section of this utility model one preferred embodiment, shows the state that push rod pushes away forward.
Fig. 4 is that the push rod of Fig. 3 pulls back to location fixing state.
Fig. 5 is another configuration state figure of this utility model syringe.
Fig. 6 is a configuration state figure again of this utility model syringe.
Fig. 7 is the another configuration state figure of this utility model syringe.
Fig. 8 is another configuration state figure of this utility model syringe.
Fig. 9 is the side cutaway view of Fig. 8.
Figure 10 is another configuration state figure of this utility model syringe.
Figure 11 is another configuration state of this utility model stopping bar spare figure.
Figure 12 is this utility model stopping bar spare configuration state figure again.
The specific embodiment
For making clearer explanation characteristics of the present utility model and effect, lift following examples now and cooperate graphic being described as follows, wherein:
See also Fig. 1 to Fig. 4, the syringe of this utility model one preferred embodiment improvement push rod backstop structure can be for the sleeve of a syringe needle 80, and this syringe includes:
One syringe 10, stack shell 11 with a straight-tube shape, it has provided a containing hole 12, one first supports portion 13 is formed at this containing hole 12 inboards, this first longitudinal cross-section of supporting portion 13 is slightly to be poroid by the taper of big convergent, poroid in one holding part 14 is, one second supports portion 15 is flange shape this containing hole 12 relative these first precalculated positions of open section backward to portion 13 of being located at.
One stopping bar spare 20, be to be the conical ring plate shape, has a ring plate body 21, outside is formed with respectively and supports a face 23 and an outer face 24 that supports in one in it, should outer support face 24 and be and to be located at first of this syringe 10 and to support portion 13 for supporting, one ends tube portion 25 and a stopping bar portion 26 is formed at its bigger diameter end edge and path ora terminalis respectively, should end tube portion 25 and is supporting and be located at that second of this syringe 10 supports that 15, four in portion escapes that ditch 27 is radially opened to this stopping bar portion 26 by the stage casing and four of shapes are blocked only shell fragment 28.
One push rod 30, have a shaft 31 and be the stock body, one solid piston part 32 is arranged in its front end, one moves back stopper 33 can slide the containing hole 12 that is butted on this syringe 10, this moves back stopper 33 is to be circumferential flange and the longitudinal cross-section is slightly to be square, and one advance stopper 34 and be formed at slightly back fragment position of this shaft 31, and a broken part 38 is formed at its precalculated position, and a push-and-pull portion 39 is located at its rear end and uses for the push-and-pull of finger.
One plug 40 is solid piston parts 32 of being located at this push rod 30, and having its periphery bulge loop of a cock body is the containing hole 12 that is sealed in this syringe 10.
The operation start situation of relevant present embodiment is described as follows now:
During installing, be can be earlier with the ring plate body 21 of this stopping bar spare 20 be just be limited to first of this syringe 10 support portion 13 with second to 15 in portion, this stopping bar spare 20 promptly can't readvance or retreat.
Then, install this push rod 30 again, promptly plug the through hole of this stopping bar spare 20 with the shaft 31 of this push rod 30, its each card ends shell fragment 28 can outside strain make through hole become big, and making the solid piston part 32 of this plug 40, push rod 30 and move back stopper 33 can be by plugging the containing hole 12 to this syringe 10.
As shown in Figure 3, when this push rod 30 pushed against the end of to, it advanced stopper 34 and also can design in proper ring plate body 21 positions that terminate in this stopping bar spare 20 of supporting; Therefore, except block, this push rod 30 advance stopper 34 also can be used as with this stopping bar spare 20 pushing and pressing be assembled in first of this syringe 10 support portion 13 with second to 15 in portion.
And as shown in Figure 4, be and this push rod 30 pulled back backward to positioning states after having injected; Wherein, the stopper 33 of moving back of this push rod 30 is that block ends shell fragment 28 in each card of this stopping bar spare 20, and this push rod 30 promptly can't pull back displacement again.At this moment, can make its broken part 38 produce fracture these push rod 30 bendings, as shown in the figure, and can't reuse.
In addition, first of this utility model syringe supports portion and second and also can be various structure applications as described below to portion, or similar structure is also together, wherein:
As shown in Figure 5, second of this syringe to support the 15A of portion be the ora terminalis that also can be located at its opening; Perhaps, as shown in Figure 6, first of this syringe supports the 13A of portion and can form as leg-of-mutton convex shape thing, makes the enough spaces of formation end shell fragment 28 for the card of this stopping bar spare 20 and is easy to outwardly-bent distortion; Moreover as shown in Figure 7, first of this syringe supports the 13B of portion and forms the fin shape, and can reach same effect.
In addition, to be installed in this syringe 10 more convenient for this stopping bar spare 20, and first of this syringe structure of supporting portion etc. also can remake following enforcement and changes in this utility model, wherein:
As Fig. 8 and shown in Figure 9, this stopping bar spare is to have more two shell fragments, 17 its force-applied elastic bending deflections, and the free end inner edge of this each shell fragment 17 then is provided with one second and supports the 15B of portion, in addition, its first support the 13C of portion be also only the part be provided with and form two, and the easier installing of this stopping bar spare is fixed.
Perhaps, as shown in figure 10, this syringe is to have more an installing mouthfuls 19 by radially offering, and can be for this stopping bar spare 20 by the side direction installing, and has selectivity and convenience on another kind of the use.
In addition, this stopping bar spare also can change the pattern that is different from previous embodiment, in the hope of reaching the effect of various user demand and expection, wherein:
As shown in figure 11, this stopping bar spare of this utility model is and can offers in addition several ditches 29 of escaping at its ring plate body, and can more convenient flexural deformation and install and be limited to second of this syringe and support portion.
Perhaps, and for example shown in Figure 12, this stopping bar spare also can only make a C shape conical ring lamellar body, its only side direction opened one fully and escaped ditch 27A, and still force-applied distortion makes and mouthful becomes big and reply original shape.
Claims (10)
1, a kind of syringe of improveing push rod backstop structure is to establish for connecing of a syringe needle, it is characterized in that, includes:
One syringe has the stack shell of a straight-tube shape, and it has provided a containing hole, and one first supports portion is formed at this containing hole inboard, and one second supports portion is flange shape this containing hole this first precalculated position of open section backward of supporting portion relatively of being located at;
One stopping bar spare, be to be the conical ring plate shape, has a ring plate body, outside is formed with the face that supports in one and an outer face that supports respectively in it, should outer support face and be and to be located at first of this syringe and to support portion for supporting, one ends tube portion and a stopping bar portion is formed at its bigger diameter end edge and path ora terminalis respectively, should end tube portion and be can be located at this syringe second to portion, at least one ditch of escaping is offered predetermined length by this stopping bar portion;
One push rod has a shaft and is the stock body, and one moves back stopper can slide the containing hole that is butted on this syringe, and it can be plugged by stopping bar portion by the tube portion of ending of this stopping bar spare, retracts the stopping bar portion block that then is subjected to this stopping bar spare, and a push-and-pull portion is located at its rear end and uses for the push-and-pull of finger.
According to the syringe of the described improvement push rod of claim 1 backstop structure, it is characterized in that 2, wherein first of this syringe to support portion be shape triangular in shape.
3, according to the syringe of the described improvement push rod of claim 1 backstop structure, it is characterized in that, wherein first of this syringe support portion and be the fin shape.
4, according to the syringe of the described improvement push rod of claim 1 backstop structure, it is characterized in that wherein this syringe has more a shell fragment, first to support portion promptly be the free end inner edge of being located at this shell fragment for this.
According to the syringe of the described improvement push rod of claim 1 backstop structure, it is characterized in that 5, wherein this syringe has more an installing and mouthful can be installed by side direction for this stopping bar spare.
6, according to the syringe of the described improvement push rod of claim 1 backstop structure, it is characterized in that wherein the ditch quantity of escaping of this stopping bar spare is to be four, end shell fragment and be formed with four cards.
According to the syringe of the described improvement push rod of claim 1 backstop structure, it is characterized in that 7, wherein the ditch of escaping of this stopping bar spare is only to be one and open-minded fully.
According to the syringe of the described improvement push rod of claim 1 backstop structure, it is characterized in that 8, wherein this stopping bar spare has at least one ditch of escaping in addition and ends tube portion by this and offer predetermined length.
9, according to the syringe of the described improvement push rod of claim 1 backstop structure, it is characterized in that it more includes the front end that a plug is located at this push rod.
According to the syringe of the described improvement push rod of claim 1 backstop structure, it is characterized in that 10, wherein this first longitudinal cross-section of supporting portion is to be poroid by the taper of big convergent to needle end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03202168 CN2602773Y (en) | 2003-01-17 | 2003-01-17 | Syringe with improved push-rod limiting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03202168 CN2602773Y (en) | 2003-01-17 | 2003-01-17 | Syringe with improved push-rod limiting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2602773Y true CN2602773Y (en) | 2004-02-11 |
Family
ID=34157730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03202168 Expired - Fee Related CN2602773Y (en) | 2003-01-17 | 2003-01-17 | Syringe with improved push-rod limiting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2602773Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105848787A (en) * | 2014-01-13 | 2016-08-10 | 阿普塔尔法国简易股份公司 | Method for using an assembly for dispensing a fluid product |
-
2003
- 2003-01-17 CN CN 03202168 patent/CN2602773Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105848787A (en) * | 2014-01-13 | 2016-08-10 | 阿普塔尔法国简易股份公司 | Method for using an assembly for dispensing a fluid product |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BERKELEY INTERNATIONAL CO., LTD. Free format text: FORMER OWNER: TAIJIE BIOCHEMICAL SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20051028 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20051028 Address after: Brunei Darussalam Bandar Seri Begawan City Patentee after: Berkeley international Limited by Share Ltd Address before: Hsinchu County of Taiwan Province Patentee before: Taijie Biochemical Science and Technology Co., Ltd. |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |