CN213608993U

CN213608993U - Self-destruction prevention syringe

Info

Publication number: CN213608993U
Application number: CN202021732994.3U
Authority: CN
Inventors: 莫钢锋
Original assignee: Wenling Gangfeng Mould Co ltd
Current assignee: Wenling Gangfeng Mould Co ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-07-06
Anticipated expiration: 2030-08-19

Abstract

The utility model discloses an anti-self-destruction syringe, which comprises a cylindrical shell, the surface of the cylindrical shell is movably connected with a needle seat, the inside of the cylindrical shell is movably connected with a piston, the surface of the piston is fixedly connected with four groups of guide blocks, the inner wall of the cylindrical shell is matched with four groups of guide grooves for the guide blocks to be embedded, the inside of the cylindrical shell is movably connected with a core rod body, the core rod body is fixedly connected with a core rod head through a self-destruction component, the surface of the core rod head is fixedly connected with an extrusion plate, the surface of the extrusion plate is fixedly connected with a rubber head, the inner wall of the cylindrical shell is fixedly connected with a plastic soft block, the surface of the core rod body is movably connected with a safety post, and the surface of the core rod body is matched; the injector can prevent the self-destruction phenomenon of the injector under the condition of no use, is favorable for ensuring the qualification rate of products, and saves the cost.

Description

Self-destruction prevention syringe

Technical Field

The utility model belongs to the syringe field, concretely relates to prevent syringe of self-destruction.

Background

The injector consists of a syringe with a small hole at the front end and a matched plunger core rod, and the injector is used for injecting a small amount of liquid or injecting the liquid into an area which cannot be accessed by other methods or extracting the liquid from the area. The process of drawing in liquid or gas from the small hole at the front end of the syringe when the core rod is pulled out, extruding the liquid or gas when the core rod is pushed in, and drawing out or injecting the gas or liquid with the syringe and the needle is called injection.

The existing syringe prevents someone from recycling the used syringe collection, and secondly, the syringe is prevented from being self-destructed without using the syringe, so that the self-destruction prevention syringe is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti-self-destruction syringe to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an anti-self-destruction syringe comprises a barrel body, wherein the surface of the barrel body is movably connected with a needle seat, the interior of the barrel body is movably connected with a piston, the surface of the piston is fixedly connected with four groups of guide blocks, the inner wall of the cylinder body is provided with four groups of guide grooves for the guide blocks to be embedded in a matching way, the interior of the cylinder body is movably connected with a core rod body, the core rod body is fixedly connected with a core rod head through a self-destruction component, the surface of the head of the core rod is fixedly connected with an extrusion plate, the surface of the extrusion plate is fixedly connected with a rubber head, the inner wall of the cylinder body is fixedly connected with a plastic soft block, the surface of the rod body of the core rod is movably connected with a safety post, the surface of the core rod body is matched and penetrated with an insertion groove for embedding the safety post, the surface of the safety post is fixedly connected with two groups of limiting rings, and the inner wall of the surface insertion groove of the core rod body is fixedly connected with two groups of limiting semicircles.

Preferably, the self-destruction component comprises a first fixing block, a second fixing block and a connecting block, the first fixing block is fixedly bonded with the head of the core rod through glue, the first fixing block is fixedly bonded with the connecting block through glue, the connecting block is fixedly bonded with the second fixing block through glue, and the second fixing block is fixedly bonded with the rod body of the core rod through glue.

Preferably, the guide block is hemispherical, the guide block is made of rubber, and the limiting ring and the limiting semicircle are made of rubber.

Preferably, the piston and the guide block are fixedly bonded through glue, and the head of the mandrel and the extrusion plate are fixedly bonded through glue.

Preferably, the rubber head and the extrusion plate are fixedly bonded through glue, and the cylinder body and the plastic soft block are fixedly bonded through glue.

Preferably, the safety post and the limiting ring are fixedly bonded through glue, and the core rod body and the limiting semicircle are fixedly bonded through glue.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through the safety column, the safety column can limit the rod body of the core rod when the injector is not used, so that the phenomenon that the injector cannot be used when the rod body of the core rod completely slides into the cylinder is prevented.

2. Through the soft piece of plastics, the soft piece of plastics can be when core rod head supports the bottom, carries on spacingly to rubber head, the soft piece of plastics, and core rod head is followed not to be removed together when making core rod body pull-back, breaks until being connected between first fixed block, second fixed block and the connecting block, makes the unable secondary use of syringe.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1 according to the present invention;

FIG. 3 is a partial schematic view of the present invention;

in the figure: 1. a barrel; 2. a needle seat; 3. a piston; 4. a guide groove; 5. a guide block; 6. a stem head; 7. a first fixed block; 8. a second fixed block; 9. a core rod body; 10. a safety post; 11. a limiting ring; 12. a limiting semicircle; 13. inserting the groove; 14. connecting blocks; 15. a pressing plate; 16. a rubber head; 17. A plastic soft block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: an anti-self-destruction syringe comprises a barrel body 1, a needle seat 2 is movably connected on the surface of the barrel body 1, a piston 3 is movably connected inside the barrel body 1, four guide blocks 5 are fixedly connected on the surface of the piston 3, four guide grooves 4 for embedding the guide blocks 5 are arranged on the inner wall of the barrel body 1 in a matching way, a core rod body 9 is movably connected inside the barrel body 1, the core rod body 9 is fixedly connected with a core rod head 6 through a self-destruction component, an extrusion plate 15 is fixedly connected on the surface of the core rod head 6, a rubber head 16 is fixedly connected on the surface of the extrusion plate 15, a plastic soft block 17 is fixedly connected on the inner wall of the barrel body 1, when the core rod body 9 is extruded upwards, the plastic soft block 17 and the rubber head 16 are extruded to the upper end of the plastic soft block 17, when the core rod body 9 is pulled back, the plastic soft block 17 is propped against the rubber head 16 and the extrusion plate 15, so that the, the surface of the core rod body 9 is provided with an insertion groove 13 for embedding the safety post 10 in a matching and penetrating mode, the surface of the safety post 10 is fixedly connected with two groups of limiting rings 11, the inner wall of the surface insertion groove 13 of the core rod body 9 is fixedly connected with two groups of limiting semicircles 12, and the limiting semicircles 12 can play a certain limiting role in the middle of the two groups of limiting rings 11.

Further, the self-destruction component comprises a first fixed block 7, a second fixed block 8 and a connecting block 14, the first fixed block 7 is fixedly bonded with the core rod head 6 through glue, the first fixed block 7 is fixedly bonded with the connecting block 14 through glue, the connecting block 14 is fixedly bonded with the second fixed block 8 through glue, the second fixed block 8 is fixedly bonded with the core rod body 9 through glue, when the core rod body 9 is pulled, the first fixed block 7, the connection between the second fixed block 8 and the connecting block 14 can be disconnected, the injector is self-destroyed, and multiple use is prevented.

Further, the guide block 5 is hemispherical, the guide block 5 is made of rubber, the limiting ring 11 and the limiting semicircle 12 are made of rubber, the piston 3 and the guide block 5 are fixedly bonded through glue, and the core rod head 6 and the extrusion plate 15 are fixedly bonded through glue.

Further, the rubber head 16 and the extrusion plate 15 are bonded and fixed through glue, the cylinder body 1 and the plastic soft block 17 are bonded and fixed through glue, the safety post 10 and the limiting ring 11 are bonded and fixed through glue, and the core rod body 9 and the limiting semicircle 12 are bonded and fixed through glue.

The utility model discloses a theory of operation and use flow: when the injector is used, the safety post 10 is pressed, the safety post 10 is completely embedded into the insertion groove 13, the limiting ring 11 moves along with the safety post 10, then solution is extracted, the core rod body 9 is pressed to inject, after the injection is completed, the guide block 5 is embedded into the guide groove 4, the extrusion plate 15 and the rubber head 16 at the upper end of the core rod head 6 are extruded to the upper end of the plastic soft block 17, then the core rod body 9 is pulled back, the extrusion plate 15 and the rubber head 16 are propped against through the plastic soft block 17, the core rod head 6 cannot move along with the core rod body 9, the first fixing block 7, the second fixing block 8 and the connecting block 14 are disconnected in a fracture mode in the pulling process, and the injector cannot be used for the second time.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An anti-self-destruction syringe comprises a barrel (1), and is characterized in that: the surface of the barrel body (1) is movably connected with a needle seat (2), the interior of the barrel body (1) is movably connected with a piston (3), the surface of the piston (3) is fixedly connected with four groups of guide blocks (5), the inner wall of the barrel body (1) is provided with four groups of guide grooves (4) for embedding the guide blocks (5) in a matching way, the interior of the barrel body (1) is movably connected with a core rod body (9), the core rod body (9) is fixedly connected with a core rod head (6) through a self-destruction component, the surface of the core rod head (6) is fixedly connected with an extrusion plate (15), the surface of the extrusion plate (15) is fixedly connected with a rubber head (16), the inner wall of the barrel body (1) is fixedly connected with a plastic soft block (17), the surface of the core rod body (9) is movably connected with a safety post (10), the surface of the core rod body (9) is provided with an insertion groove, the surface of the safety post (10) is fixedly connected with two groups of limiting rings (11), and the inner wall of the surface insertion groove (13) of the core rod body (9) is fixedly connected with two groups of limiting semicircles (12).

2. An anti-auto-disable syringe as defined in claim 1, further comprising: the self-destruction component comprises a first fixing block (7), a second fixing block (8) and a connecting block (14), the first fixing block (7) and the core rod head (6) are fixedly bonded through glue, the first fixing block (7) and the connecting block (14) are fixedly bonded through glue, the connecting block (14) and the second fixing block (8) are fixedly bonded through glue, and the second fixing block (8) and the core rod body (9) are fixedly bonded through glue.

3. An anti-auto-disable syringe as defined in claim 1, further comprising: the guide block (5) is hemispherical, the guide block (5) is made of rubber, and the limiting ring (11) and the limiting semicircle (12) are made of rubber.

4. An anti-auto-disable syringe as defined in claim 1, further comprising: the piston (3) and the guide block (5) are fixedly bonded through glue, and the head (6) of the core rod and the extrusion plate (15) are fixedly bonded through glue.

5. An anti-auto-disable syringe as defined in claim 1, further comprising: the rubber head (16) is fixedly bonded with the extrusion plate (15) through glue, and the cylinder body (1) is fixedly bonded with the plastic soft block (17) through glue.

6. An anti-auto-disable syringe as defined in claim 1, further comprising: the safety post (10) is fixedly bonded with the limiting ring (11) through glue, and the core rod body (9) is fixedly bonded with the limiting semicircle (12) through glue.