CN211723533U

CN211723533U - Syringe for veterinarian

Info

Publication number: CN211723533U
Application number: CN202020049231.2U
Authority: CN
Inventors: 方小伟
Original assignee: Yangtze University
Current assignee: Yangtze University
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2020-10-23
Anticipated expiration: 2030-01-09

Abstract

The utility model relates to the technical field of injectors, and discloses an injector for veterinarian, which comprises a needle cylinder and a push rod component, wherein the push rod component comprises a push rod, a first baffle ring, a piston and a fixing screw, one end of the push rod is coaxially inserted into the needle cylinder, and one end of the push rod is internally provided with a threaded hole; the first one end of push rod is located to the coaxial and fixed cover of fender ring, and the first fixed orifices that is linked together, second fixed orifices are seted up to the piston is coaxial, and the diameter of second fixed orifices is greater than first fixed orifices, and the piston is located push rod and butt in first fender ring through first fixed orifices cover, and fixing screw's screw thread end penetrates first fixed orifices and threaded connection in the screw hole, places second fixed orifices and butt in the bottom inner wall of second fixed orifices in fixing screw's head. The veterinary syringe of the utility model can conveniently replace the piston.

Description

Syringe for veterinarian

Technical Field

The utility model relates to the technical field of syringes, concretely relates to syringe for veterinarian.

Background

The syringe for animals is the metal syringe mostly, and this kind of syringe need the disinfection after using up, and common disinfection mode generally is high-pressure high-temperature sterilization and dry heat disinfection, no matter be high-pressure high-temperature sterilization or dry heat disinfection all can cause the damage to the rubber piston head of syringe, need regularly change the piston, but the push rod in the syringe is connected in the most inseparable cooperation of present piston, can't take off easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the technical insufficiency, provide an animal doctor uses syringe, solve the technical problem that the syringe piston was inconvenient to be changed in the prior art.

In order to achieve the above technical purpose, the technical solution of the present invention provides an injector for veterinarian, comprising:

a needle cylinder;

the push rod assembly comprises a push rod, a first baffle ring, a piston and a fixing screw, one end of the push rod is coaxially inserted into the needle cylinder, a threaded hole is formed in one end of the push rod, and the threaded hole is formed in the axial direction of the push rod; first fender ring is coaxial and fixed cover is located the one end of push rod, first fixed orifices, the second fixed orifices that is linked together are seted up to the piston is coaxial, the diameter of second fixed orifices is greater than first fixed orifices, the piston warp first fixed orifices cover is located push rod and butt in first fender ring, set screw's threaded end penetrates first fixed orifices and threaded connection in the screw hole, place in set screw's head second fixed orifices and butt in the bottom inner wall of second fixed orifices.

Compared with the prior art, the beneficial effects of the utility model include: when the rubber piston needs to be replaced, the push rod is taken out, the push rod is pulled out movably, the fixing screw is rotated through the tool and taken out, the piston made of rubber can be taken down easily at the moment, then the new piston sleeve is arranged on the push rod, then the fixing screw is screwed up, in the process of screwing up the fixing screw, the head of the fixing screw is abutted to the inner wall of the bottom of the second fixing hole, and the piston is fixed on the push rod through the fixing screw.

Drawings

Fig. 1 is a three-dimensional schematic view of a veterinary syringe according to a first embodiment of the present invention;

fig. 2 is a schematic structural view of a veterinary syringe according to a first embodiment of the present invention;

FIG. 3 is an enlarged partial schematic view at A in FIG. 2;

FIG. 4 is an enlarged partial schematic view at B of FIG. 2;

fig. 5 is a three-dimensional schematic view of a veterinary syringe according to a third embodiment of the present invention;

FIG. 6 is an enlarged partial schematic view at C of FIG. 5;

fig. 7 is a schematic structural view of a veterinary syringe according to the fourth embodiment of the present invention;

FIG. 8 is an enlarged partial schematic view at D of FIG. 7;

fig. 9 is a partially enlarged schematic view at E in fig. 7.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The first embodiment is as follows:

the utility model provides an injector for veterinarians, as shown in figures 1 to 9, comprising a needle cylinder 1 and a push rod component 2, wherein the push rod component 2 comprises a push rod 21, a first baffle ring 22, a piston 23 and a fixing screw 24, one end of the push rod 21 is coaxially inserted into the needle cylinder 1, and one end of the push rod 21 is internally provided with a threaded hole which is arranged along the axial direction of the push rod 21; first fender ring 22 is coaxial and fixed cover locates the one end of push rod 21, and first fixed orifices, the second fixed orifices that is linked together are seted up to piston 23 is coaxial, the diameter of second fixed orifices is greater than first fixed orifices, piston 23 warp push rod 21 and butt are located to first fixed orifices cover in first fender ring 22, and set screw 24's threaded end penetrates first fixed orifices and threaded connection in the screw hole, place in set screw 24's head second fixed orifices and butt in the bottom inner wall of second fixed orifices.

Preferably, the first stopper ring 22 is integrally formed with the push rod 21.

Preferably, the push rod assembly 2 further includes a second retaining ring 25, the second retaining ring 25 is disposed in the second fixing hole and coaxially sleeved on the fixing screw 24, the second retaining ring 25 is disposed between the head of the fixing screw 24 and the bottom inner wall of the second fixing hole, one end of the second retaining ring 25 abuts against the head of the fixing screw 24, and the other end of the second retaining ring 25 abuts against the bottom inner wall of the second fixing hole.

Preferably, the outer edge of the second baffle ring 25 is tilted away from the inner wall of the bottom of the second fixing hole.

Through setting up second fender ring 25, compress tightly piston 23 through second fender ring 25, prevent that set screw 24 from screwing up in-process crushing piston 23, through keeping off the outer fringe of ring 25 to keeping away from the direction perk of the bottom inner wall of second fixed orifices, prevent that the edge of second fender ring 25 compresses tightly piston 23 from cutting piston 23 or producing the indentation.

Specifically, cylinder 1 is inside hollow and one end open-ended hollow barrel, and the blind end of cylinder 1 is formed with fixed pipe 11 along the outside protrusion of axial, and fixed pipe 11 is linked together with cylinder 1, and the external screw thread has been seted up to the outer wall of fixed pipe 11, the syringe for the animal doctor still includes first syringe needle 3, and the feed liquor end coaxial coupling of first syringe needle 3 has first fixed cover 4, and first fixed cover 4 coaxial coupling is in first syringe needle 3, and the inner wall of first fixed cover 4 is seted up there is the internal thread, and first fixed cover 4 threaded connection is in fixed pipe 11.

First syringe needle 3 is connected through fixed pipe 11, the dismantlement of first fixed

cover

4 and 1 shell of cylinder, when first syringe needle 3 produced deformation after using a period or other reasons need be changed, rotates first fixed cover 4 for

first syringe needle

3 and 1 separation of cylinder are convenient for change first syringe needle 3.

The syringe 1, the push rod 21, the first stopper ring 22, the fixing screw 24, the first needle 3, and the second stopper ring 25 are all made of metal, and the syringe 1, the push rod 21, the first stopper ring 22, the fixing screw 24, the first needle 3, and the second stopper ring 25 are made of stainless steel, but the types of the materials of the syringe 1, the push rod 21, the first stopper ring 22, the fixing screw 24, the first needle 3, and the second stopper ring 25 are not limited thereto.

In the specific working process of the utility model, the metal veterinary syringe needs to be sterilized frequently, so that the rubber piston 23 in the syringe needs to be replaced frequently, when the rubber piston 23 needs to be replaced, the push rod 21 is taken out, the push rod 21 pulls out the piston 23, the fixing screw 24 is rotated by a tool and the fixing screw 24 is taken out, the second stop ring 25 is then removed, at which point the rubber piston 23 can be easily removed, then a new piston 23 is sleeved on the push rod 21, then the second retaining ring 25 is sleeved on the fixing screw 24, and the second retaining ring 25 is arranged in the second fixing hole, then, the fixing screw 24 is tightened, in the process of tightening the fixing screw 24, the head of the fixing screw 24 abuts against the second retaining ring 25, the second retaining ring 25 abuts against the inner wall of the bottom of the second fixing hole, and the piston 23 abuts against one end of the first retaining ring 22 close to the first needle 3.

Example two:

the second embodiment is the same as the first embodiment and is not described, but the second embodiment is different from the first embodiment in that a fixing column 12 is arranged on the outer wall of the syringe 1, a communication hole is formed in one end, away from the syringe 1, of the fixing column 12, the communication hole is radially inwards communicated with the syringe 1, and an external thread is formed in the outer wall of the fixing column 12.

The fixing post 12 is integrally formed with the cylinder 1.

Through setting up fixed column 12 to be linked together through intercommunicating pore and cylinder 1, can directly inject the medicament into 1 interior syringe through the intercommunicating pore, conveniently fill the medicament, need not to draw out the medicine through first syringe needle 3.

Example three:

the third embodiment is the same as the second embodiment and is not described, but the third embodiment is different from the second embodiment in that the veterinary syringe further comprises a sealing cap 5, the sealing cap 5 is hollow inside and has an open end, the inner wall of the sealing cap 5 is provided with external threads, and the sealing cap 5 is in threaded connection with a fixing column 12.

Through setting up sealing cap 5, when not using the intercommunicating pore, with sealing cap 5 threaded connection in fixed column 12, realized the sealed of intercommunicating pore, prevent that the air from in the intercommunicating pore gets into cylinder 1.

Example four:

the fourth embodiment is the same as the second embodiment and is not described, and the fourth embodiment is different from the second embodiment in that the veterinary syringe further comprises a liquid inlet assembly 6, the liquid inlet assembly 6 comprises a second fixing sleeve 61, a connecting pipe 62, a second needle 63, a limiting net 64, a floating ball 65 and a limiting block 66, an inner thread is formed on the inner wall of the second fixing sleeve 61, one end of the second fixing sleeve 61 is in threaded connection with the fixed column 12, one end of the connecting pipe 62 is in conductive connection with the second fixing sleeve 61, and the second needle 63 is in conductive connection with the other end of the connecting pipe 62; the limiting net 64, the floating ball 65 and the limiting block 66 are sequentially arranged in the connecting pipe 62, and the limiting net 64 is circular and coaxially connected to the inner wall of the connecting pipe 62; the relative spacing net 64 of stopper 66 is close to the setting of second syringe needle 63, and stopper 66 is cylindrical and coaxial coupling in the inner wall of connecting pipe 62, and stopper 66 has seted up a bell mouth along the axial, the bell mouth runs through stopper 66, the bell mouth is along the direction diameter that is close to second syringe needle 63 constantly reducing, the diameter of the minor diameter end in cylindrical hole is less than the diameter of floater 65.

Through setting up feed liquor subassembly 6, when need pour into liquid medicine into syringe 1 in, seal first needle 3, the confined mode can be for holding between the fingers or wrapping with article, then outside pulling push rod 21, under the effect of piston 23, make the syringe 1 in form the negative pressure, through connecting pipe 62 under the effect of negative pressure, the liquid medicine in the medicament bottle is drawn to second needle 63, draw a certain amount of back, loosen first needle 3, through promoting push rod 21 to syringe 1 in, get rid of the air then inject, during the injection, when the trend that the medicament flows to the medicament bottle is got rid of to the medicament in the connecting pipe 62, the medicament can promote floater 65 and remove, make the floater 65 plug up the bell mouth, make the medicament can't return the medicament bottle through connecting pipe 62, make the medicament in the syringe 1 pour into the animal smoothly into, can be convenient add the medicine into syringe 1.

The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A veterinary syringe, comprising:

a needle cylinder;

2. The veterinary syringe of claim 1, wherein the push rod assembly further comprises a second stop ring, the second stop ring is disposed in the second fixing hole and coaxially sleeved on the fixing screw, the second stop ring is disposed between the head of the fixing screw and the bottom inner wall of the second fixing hole, one end of the second stop ring abuts against the head of the fixing screw, and the other end of the second stop ring abuts against the bottom inner wall of the second fixing hole.

3. The veterinary syringe of claim 2, wherein the outer edge of the second retainer is raised away from the inner wall of the bottom of the second fixing hole.

4. The veterinary syringe as claimed in claim 1, wherein the outer wall of the syringe barrel is provided with a fixing column, one end of the fixing column, which is far away from the syringe barrel, is provided with a communication hole inwards in the radial direction, the communication hole is communicated with the syringe barrel, and the outer wall of the fixing column is provided with an external thread.

5. The veterinary syringe of claim 4, further comprising a sealing cap, wherein the sealing cap is hollow and open at one end, the sealing cap is externally threaded on the inner wall, and the sealing cap is threadedly connected to the fixing post.