CN211935072U

CN211935072U - Disposable syringe

Info

Publication number: CN211935072U
Application number: CN201921184886.4U
Authority: CN
Inventors: 姜文婷
Original assignee: Guangdong Intmed Medical Appliance Co ltd
Current assignee: Guangdong Intmed Medical Appliance Co ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-11-17
Anticipated expiration: 2029-07-26

Abstract

The utility model discloses a disposable syringe, including empty section of thick bamboo, nipple, lug, piston rod, piston handle, the solid fixed ring of piston handle, piston guiding axle, L shape recess, fixture block, piston, some nipples of empty section of thick bamboo front end integrated into one piece, empty section of thick bamboo terminal top and bottom integrated into one piece have the lug, the terminal inside integrated into one piece of empty section of thick bamboo has the solid fixed ring of piston handle, and the equal integrated into one piece in both ends has the piston guiding axle about empty section of thick bamboo is inside, the piston rod front end is installed in the piston, and the terminal integrated into one piece of piston rod has the piston handle, the piston rod is installed in empty section of thick bamboo, L shape recess has been seted up respectively at piston handle solid fixed ring both ends from top to bottom, and the equal integrated. The utility model has the advantages of simple structure and reasonable design, convenience safe in utilization because the piston rod has the retractility, still can sparingly occupy the medical waste space, prevents to get into other medicines in the syringe through the sealed empty bobbin base portion of piston handle simultaneously, causes the pollution.

Description

Disposable syringe

Technical Field

The utility model relates to a disposable syringe.

Background

The disposable syringe is made of high molecular polypropylene material and is generally divided into three-piece type and two-piece type, wherein the three-piece type structure comprises a core bar, a rubber plug, a sheath, a syringe needle and an outer package, and the two-piece type structure comprises the core bar, the sheath, the syringe needle and the outer package.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a disposable 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:

the disposable syringe comprises an empty cylinder, a nipple, scale marks, lugs, a piston rod, a piston handle, a circular groove, a piston handle fixing ring, a piston guide shaft, an L-shaped groove, a clamping block and a piston, wherein the nipple for connecting a needle head is integrally formed at the front end of the empty cylinder, the scale marks are carved on the side edge of the empty cylinder by adopting a laser scale, the lugs which correspond to each other from top to bottom are integrally formed at the top and the bottom of the tail end of the empty cylinder, the circular grooves are respectively formed on the front surface and the back surface of each lug, the piston handle fixing ring is integrally formed inside the tail end of the empty cylinder, the piston guide shaft is integrally formed at the upper end and the lower end of the inside of the empty cylinder, the front end of the piston rod is installed in the piston, the piston rod is integrally formed at the tail end of the piston rod, the piston rod is installed in the empty cylinder and is fixed by, and the upper end and the lower end of the piston handle are both integrally formed with clamping blocks matched with the openings of the L-shaped grooves.

Preferably: the piston comprises rubber buffer, guiding axle recess, activity recess, cross recess and spring, the piston front end is installed in the rubber buffer, the guiding axle recess that matches with the piston guiding axle is all seted up at both ends about the rubber buffer, the piston is inside to be seted up movable recess, and installs the spring in the activity recess, the piston front end seted up with the communicating cross recess of activity recess, and the biggest external diameter of cross recess is the same with the activity recess.

Preferably: the disposable syringe further comprises a cross-shaped fixture block, the cross-shaped fixture block matched with the cross-shaped groove is bonded at the front end of the piston rod, the piston rod is installed in the cross-shaped groove at the front end of the piston through the cross-shaped fixture block, and when the piston handle is pressed forcibly, the piston rod can be driven to push the cross-shaped fixture block to enter the movable groove, the piston rod can rotate freely, and the locking is achieved through the fact that the fixture block is matched with the L-shaped groove.

The utility model has the advantages that: the utility model has the advantages of simple structure and reasonable design, convenience safe in utilization because the piston rod has the retractility, still can sparingly occupy the medical waste space, prevents to get into other medicines in the syringe through the sealed empty bobbin base portion of piston handle simultaneously, causes the pollution.

Drawings

FIG. 1 is a schematic view of the disposable syringe of the present invention;

FIG. 2 is a partially enlarged view of the empty tube of the disposable syringe of the present invention;

FIG. 3 is a schematic view of the structure of the piston rod of the disposable syringe of the present invention;

FIG. 4 is a half-sectional view of the disposable syringe piston of the present invention;

fig. 5 is a schematic structural view of the piston rod of the disposable syringe of the present invention.

In the figure: 1. the device comprises an empty cylinder, 2, a nipple, 3, a scale mark, 4, a lug, 5, a piston rod, 6, a piston handle, 7, a circular groove, 8, a piston handle fixing ring, 9, a piston guide shaft, 10, an L-shaped groove, 11, a fixture block, 12, a piston, 13, a rubber plug, 14, a guide shaft groove, 15, a movable groove, 16, a cross-shaped groove, 17, a spring, 18 and a cross-shaped fixture block.

Detailed Description

The invention will be further elucidated with reference to the following figures and specific embodiments:

as shown in fig. 1-5, a disposable syringe comprises an empty cylinder 1, a nipple 2, a scale mark 3, a lug 4, a piston rod 5, a piston handle 6, a circular groove 7, a piston handle fixing ring 8, a piston guide shaft 9, an L-shaped groove 10, a clamping block 11 and a piston 12, wherein the front end of the empty cylinder 1 is integrally formed with the nipple 2 for connecting a needle, the side edge of the empty cylinder 1 is carved with the scale mark 3 by adopting a laser scale, the top and the bottom of the tail end of the empty cylinder 1 are integrally formed with the lug 4 which is corresponding to each other up and down, the front and back surfaces of the lug 4 are both provided with the circular groove 7, the piston handle fixing ring 8 is integrally formed inside the tail end of the empty cylinder 1, the piston guide shaft 9 is integrally formed at the upper and lower ends inside the empty cylinder 1, the front end of the piston rod 5 is installed in the piston 12, the piston handle 6 is integrally formed at the tail end of the piston rod 5, and fixed through piston 12, mutually reverse L shape recess 10 has been seted up respectively to piston handle solid fixed ring 8 upper and lower both ends, and piston handle 6 upper and lower both ends all integrated into one piece have with L shape recess 10 opening assorted fixture block 11. Piston 12 comprises rubber buffer 13, guiding axle recess 14, activity recess 15, cross recess 16 and spring 17, install in rubber buffer 13 piston 12 front end, both ends all seted up with piston guiding axle 9 assorted guiding axle recess 14 about rubber buffer 13, piston 12 is inside to have seted up activity recess 15, and installs spring 17 in the activity recess 15, piston 12 front end is seted up with the communicating cross recess 16 of activity recess 15, and the 16 biggest external diameters of cross recess are the same with activity recess 15. The disposable syringe further comprises a cross fixture block 18, the cross fixture block 18 matched with the cross groove 16 is bonded at the front end of the piston rod 5, the piston rod 5 is installed in the cross groove 16 at the front end of the piston 12 through the cross fixture block 18, and when the piston handle 6 is pressed forcibly, the piston rod 5 can be driven to push the cross fixture block 18 to enter the movable groove 15, the piston rod 5 can rotate freely, and the locking is achieved through the fact that the fixture block 11 is matched with the L-shaped groove 10.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The embodiments are therefore to be considered in all respects as illustrative and all changes which come within the meaning and range of equivalency are therefore intended to be embraced therein.

Claims

1. The utility model provides a disposable syringe, includes empty section of thick bamboo (1), nipple (2), scale mark (3), lug (4), piston rod (5), piston handle (6), circular recess (7), the solid fixed ring of piston handle (8), piston guiding axle (9), L shape recess (10), fixture block (11), piston (12), its characterized in that: the novel syringe is characterized in that a nipple (2) for connecting a needle head is integrally formed at the front end of the hollow cylinder (1), scale marks (3) are carved on the side edge of the hollow cylinder (1) by adopting laser scales, lugs (4) which correspond to each other from top to bottom are integrally formed at the top and the bottom of the tail end of the hollow cylinder (1), circular grooves (7) are formed in the front and back surfaces of the lugs (4), a piston handle fixing ring (8) is integrally formed in the tail end of the hollow cylinder (1), piston guide shafts (9) are integrally formed at the upper end and the lower end of the inside of the hollow cylinder (1), the front end of the piston rod (5) is installed in a piston (12), a piston handle (6) is integrally formed at the tail end of the piston rod (5), the piston rod (5) is installed in the hollow cylinder (1) and is fixed through the piston (12), and L-shaped grooves (10) which are opposite to each other are respectively formed, and the upper end and the lower end of the piston handle (6) are integrally formed with clamping blocks (11) matched with the openings of the L-shaped grooves (10).

2. The single use syringe of claim 1, wherein: piston (12) comprises rubber buffer (13), guiding axle recess (14), activity recess (15), cross recess (16) and spring (17), install in rubber buffer (13) piston (12) front end, both ends all seted up with piston guiding axle (9) assorted guiding axle recess (14) about rubber buffer (13), piston (12) inside has seted up movable recess (15), and installs spring (17) in activity recess (15), communicating cross recess (16) with activity recess (15) are seted up to piston (12) front end, and cross recess (16) maximum external diameter is the same with activity recess (15).

3. The single use syringe of claim 1, wherein: the disposable syringe further comprises a cross fixture block (18), the cross fixture block (18) matched with the cross groove (16) is bonded at the front end of the piston rod (5), the piston rod (5) is installed in the cross groove (16) at the front end of the piston (12) through the cross fixture block (18), and when the piston handle (6) is pressed forcibly, the piston rod (5) can be driven to push the cross fixture block (18) into the movable groove (15), the piston rod (5) can rotate freely, and the locking is achieved through the fact that the fixture block (11) is matched with the L-shaped groove (10).