CN201978269U

CN201978269U - Push rod structure of automatic destroyed syringe

Info

Publication number: CN201978269U
Application number: CN2010206870871U
Authority: CN
Inventors: 高亦岑; 刘华龙
Original assignee: Shanghai Kangdelai Enterprise Development Group Co Ltd
Current assignee: Shanghai Kangdelai Enterprise Development Group Co Ltd
Priority date: 2010-12-29
Filing date: 2010-12-29
Publication date: 2011-09-21
Anticipated expiration: 2020-12-29

Abstract

The utility model relates to a push rod structure of an automatic destroyed syringe, which comprises a core rod and a pressing hand which is connected with the core rod in a detachable mode. Three core rod laths which are distributed uniformly and are parallel are vertically fixed on the bottom surface of the core rod. Opposite surfaces of two outer core rod laths are respectively provided with two half-through slots with opposite opening directions. The pressing hand comprises a disk and two pressing hand laths which are vertically fixed on the top surface of the disk and are parallel. Opposite surfaces of the pressing hand laths are respectively longitudinally provided with a rib plate vertical to the corresponding surface. The pressing hand laths and the rib plates thereof are respectively placed in gaps among the three laths. The outer lateral surfaces of the pressing hand laths are respectively provided with convex edges matched with the half-through slots of the core rod laths. The push rod structure of the automatic destroyed syringe adopts a structure that the pressing hand is connected with the core rod in a detachable mode. After injection, if the core rod is pulled out, the pressing hand is separated from the core rod, so that a force cannot applied to the core rod, automatic destroying in the true sense is realized and the possibility that the syringe is used repeatedly is prevented.

Description

A kind of pusher structure of self-destructive syringe

Technical field

This utility model relates to a kind of disposable syringe, relates in particular to a kind of pusher structure of self-destructive syringe.

Background technology

Though at present the disposable syringe that uses should disposablely use according to the rules, still once more or nonexpondable may, exist since syringe reuse easily cause its sterilization not thoroughly, the easy shortcoming of generation cross infection of virus.

In order to prevent the generation of above-mentioned situation, Disposable, self-destroying type syringe is widely used, existing self-destructive syringe structure exist product design unreasonable, in practical operation poor work stability, real shortcoming such as self-destruction.

Summary of the invention

The purpose of this utility model provides a kind of pusher structure of self-destructive syringe exactly in order to address the above problem, this pusher structure is reasonable, has also solved the really problem of self-destruction simultaneously.

The purpose of this utility model is achieved in that a kind of pusher structure of self-destructive syringe, comprises the hands of pressing that is loaded on the core bar in the overcoat and is connected in the core bar bottom surface, described by hands and core bar bottom surface for removably connecting.

Above-mentioned self-destructive syringe, wherein, described core bar bottom surface vertically is fixed with three blocks of uniform and be parallel to each other core bar laths, wherein, be positioned at the two boards bar in the outside, be respectively equipped with two half grooves that opening direction is opposite on its opposite face, and the half groove opening direction that is on the same horizontal plane is also opposite.

Above-mentioned self-destructive syringe, wherein, described by hands comprise a disk and vertically be fixed in this disk end face and be parallel to each other two by the palm bar, described by vertically being provided with a gusset perpendicular to this face on the palm bar opposite face respectively, describedly place on the described core bar bottom surface gap between three blocks of laths, described lateral surface to be respectively equipped with the fin that half groove with described core bar lath is complementary respectively by the palm bar by palm bar and gusset thereof.

Above-mentioned self-destructive syringe, wherein, the gap between the described gusset is identical with the described thickness that is positioned at intermediary core bar lath.

The pusher structure of this utility model self-destructive syringe adopts and removably connects by hands and core bar, and its injection back is then pressed hands and broken away from core bar earlier if want to extract core bar, makes on the core bar application of force nowhere to have realized self-destruction truly, prevents reusable possibility.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of core bar bottom in this utility model;

Fig. 3 is by the hands master left perspective view of bowing in this utility model;

Fig. 4 is by the hands master right perspective view of bowing in this utility model.

The specific embodiment

Participate in Fig. 1 to Fig. 4, the pusher structure of this utility model self-destructive syringe, what comprise the core bar 2 that is loaded in the overcoat 1 and be connected in core bar 2 bottom surfaces 21 presses hands 4, core bar 2 bottom surfaces 21 vertically are fixed with three blocks of uniform and be parallel to each other

core bar laths

31,32,33, have half groove 312 that is positioned at top and backward opening on the right flank of core bar lath 31 and be positioned at the bottom and towards half groove 311 of open front, have on the left surface of core bar lath 33 and be positioned at top and towards half groove 332 of open front be positioned at half groove 331 of bottom and backward opening, wherein half groove 311 and half groove 331, and half groove 312 and half groove 332 are in respectively on the same horizontal plane.

In the above-mentioned self-destructive syringe, by hands 4 comprise a disk 41 and vertically be fixed in these disk 41 end faces and be parallel to each other two by

palm bar

42,43, right flank by palm bar 42 vertically is provided with a left gusset 44 perpendicular to this face, left surface by palm bar 43 vertically is provided with a right web plate 45 perpendicular to this face, gap between left side gusset 44 and the right web plate 45 is identical with the thickness of core bar lath 32, be provided with the fin 421 that half groove 311 with core bar lath 31 is complementary by the left surface of palm bar 42, and the fin 422 that is complementary with half groove 312, be provided with the fin 431 that half groove 331 with core bar lath 33 is complementary by the right flank of palm bar 43, and the fin 432 that is complementary with half groove 332.

When pressing hands 4 by shown in Figure 1 when being connected with core bar 2 bottom surfaces 21, place between the

core bar lath

31,32 by palm bar 42 and left gusset 44, be embedded in by the fin on the palm bar 42 421 in half groove 311 of core bar lath 31, be embedded in by the fin on the palm bar 42 422 in half groove 312 of core bar lath 31, and place between the

core bar lath

32,33 by palm bar 43 and left gusset 45, be embedded in by the fin on the palm bar 43 431 in half groove 331 of core bar lath 33, be embedded in by the fin on the palm bar 43 432 in half groove 312 of core bar lath 33.

The pusher structure of this utility model self-destructive syringe can cooperate the self-locking device in the overcoat 1 to use, specific design is: the required power of releasing self-locking device is greater than and makes core bar 2 and press isolating power between the hands 4, if after arriving to a certain degree to the power that applies recession by hands 3, promptly separate by hands 3 with core bar 2, can't apply the power of recession again to core bar 2, realize self-destruction truly.

Above embodiment is only for the usefulness that this utility model is described, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.

Claims

1. the pusher structure of a self-destructive syringe comprises the hands of pressing that is loaded on the core bar in the overcoat and is connected in the core bar bottom surface, it is characterized in that, described by hands and core bar bottom surface for removably connecting.

2. self-destructive syringe according to claim 1, it is characterized in that, described core bar bottom surface vertically is fixed with three blocks of uniform and be parallel to each other core bar laths, wherein, be positioned at two blocks of core bar laths in the outside, be respectively equipped with two half grooves that opening direction is opposite on its opposite face, and the half groove opening direction that is on the same horizontal plane is also opposite.

3. self-destructive syringe as claimed in claim 1 or 2, it is characterized in that, described by hands comprise a disk and two vertically be fixed in this disk end face and be parallel to each other by the palm bar, described by vertically being provided with a gusset perpendicular to this face on the palm bar opposite face respectively, describedly place gap between described three blocks of core bar laths, described lateral surface to be respectively equipped with the fin that half groove with described core bar lath is complementary respectively by the palm bar by palm bar and gusset thereof.

4. as self-destructive syringe as described in the claim 3, it is characterized in that the gap between the described gusset is identical with the described thickness that is positioned at intermediary core bar lath.