CN217366176U

CN217366176U - Controllable animal experiment injection device of speed

Info

Publication number: CN217366176U
Application number: CN202122253451.4U
Authority: CN
Inventors: 秦永亭; 王士珍
Original assignee: Jiangsu College of Nursing
Current assignee: Jiangsu College of Nursing
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-09-06
Anticipated expiration: 2031-09-17

Abstract

The utility model discloses a controllable animal experiment injection device of speed, including syringe and handle casing, handle casing's inside is provided with the gasbag, and handle casing's last sliding surface installs the stripper plate, handle casing's right-hand member fixedly connected with end plate, the side of end plate set up threaded hole, and threaded hole internal thread installs the sleeve pipe, and sheathed tube inner wall sliding connection has the piston dish, and the sheathed tube right-hand member is provided with the gas conservation stopper, presses down the gasbag and can pass the gas conservation stopper with inside gas and impress in the cover to promote the piston dish and remove. The device, compression air bag gas injection, because the size of orifice is certain, in the air current was impressed the cover pipe gradually, piston dish slow movement supported the pressure syringe, realized the injection, even if this design is energetically, quick compression air bag, the removal of piston dish has the delay, prevents that the propelling movement is power or big or little and direct action from on the syringe, causes the unstable problem of injection speed change, changes different gas conservation stopper to can realize the controllable effect of propelling movement speed.

Description

Controllable animal experiment injection device of speed

Technical Field

The utility model relates to the technical field of injectors, in particular to an animal experiment injection device with controllable speed.

Background

The injector used in the laboratory is similar to a medical injector, and consists of a syringe with a small hole at the front end and a matched piston core rod, and is used for injecting a small amount of liquid into an area which cannot be accessed by other methods or extracting the liquid from the area, sucking the liquid or gas from the small hole at the front end of the syringe when the core rod is extracted, and extruding the liquid or gas when the core rod is pushed in to play the roles of injecting medicines and sucking the liquid.

The existing disposable injector is simple in structure, when the injection speed is controlled in the experimental process, the injection speed can be controlled manually only by a user according to the feeling, the pushing force is large or small, the injection speed is unstable, the use is inconvenient, the randomness is large, the experimental research is not facilitated, and therefore the application provides the animal experiment injection device with the controllable speed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a controllable animal experiment injection device of speed 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 utility model provides a controllable animal experiment injection device of speed, including syringe and handle casing, the inside of handle casing is provided with the gasbag, the last surface sliding who handles the casing installs the stripper plate, the right-hand member fixedly connected with end plate of handle casing, the side of end plate is seted up threaded hole, threaded hole internal thread installs the sleeve pipe, sheathed tube inner wall sliding connection has the piston dish, sheathed tube right-hand member is provided with the gas conservation stopper, press down the gasbag and can pass the gas conservation stopper with inside and impress in the sleeve pipe, and promote the piston dish and remove, the right side sliding mounting of end plate has the finger to press the cap, the tip that indicates to press the cap is provided with the exhaust hole, the left end of handle casing rotates and is connected with the locking clamp, it is fixed to insert the intraductal syringe joint of sleeve through the locking clamp.

Preferably, the right end face of the sleeve is provided with a groove, one end of the air-saving plug is matched with the inner wall of the groove, and the end face of the air-saving plug is provided with a throttling hole which penetrates left and right.

Preferably, one end, far away from the sleeve, of the air-saving plug is provided with a limiting groove, the side face of the finger pressing cap is provided with a limiting bulge, and the limiting bulge is clamped into the limiting groove.

Preferably, the sleeve is made of transparent resin or transparent glass.

Preferably, the locking clamp is of a two-piece structure, and the opposite surfaces of the two-piece locking clamp are fixedly connected with tension springs.

Preferably, the throttle valve further comprises a plurality of throttle plugs with different orifice sizes, and different throttle plugs are selected to be assembled and used according to requirements.

Advantageous effects

The utility model provides a controllable animal experiment injection device of speed possesses following beneficial effect:

1. this controllable animal experiment injection device of speed, through setting up sleeve pipe and piston dish, the gasbag is to the sleeve pipe gas injection, because the size of orifice is certain, the air current is impressed in the sleeve pipe gradually, piston dish slow movement supports the pressure syringe, realize the injection, this design is even energetically, the quick compression gasbag, the removal of piston dish has the delay, prevent that propelling movement power is big or little and direct action is on the syringe, cause the unstable problem of injection speed change, change different festival gas plugs, thereby can realize the effect of the adjustable change of propelling movement speed.

2. This controllable animal experiment injection device of speed indicates through setting up and presses the cap, and in the use, the thumb is pressed and is being pointed the pressure cap to block up its exhaust hole, through spacing bellied power transmission, compress tightly the throttle stopper, when needs stop the injection, only need loosen the thumb, the intraductal syringe that has pressure gas backs down the throttle stopper, discharges from the exhaust hole, and the intraductal syringe of cover loses exogenic action, stops the injection, convenient to use.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the present invention after the sleeve is disassembled;

FIG. 3 is a schematic view of the front cross-section structure of the handle case of the present invention;

fig. 4 is a schematic view of the structure of the syringe of the present invention.

In the figure: the device comprises a syringe 1, a handle shell 2, an air bag 3, a squeezing plate 4, an end plate 5, a sleeve 6, a piston disc 7, an air throttle plug 8, a finger pressing cap 9, an exhaust hole 10, a locking clamp 11, a throttling hole 12 and a limiting bulge 13.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a controllable animal experiment injection device of speed, includes syringe 1 and handle casing 2, and the inside of handle casing 2 is provided with gasbag 3, and the last surface slidable mounting of handle casing 2 has stripper plate 4, and the right-hand member fixedly connected with end plate 5 of handle casing 2, the side of end plate 5 set up threaded hole, and sleeve pipe 6 is installed to the screw hole internal thread, and the material of sleeve pipe 6 is transparent resin or clear glass.

The inner wall sliding connection of sleeve pipe 6 has piston dish 7, the right-hand member of sleeve pipe 6 is provided with throttle stopper 8, the right-hand member face of sleeve pipe 6 is provided with the recess, throttle stopper 8's one end coincide with the recess inner wall, throttle 12 that runs through about throttle stopper 8's terminal surface is seted up, press gasbag 3 can pass throttle stopper 8 with inside gas in the sleeve pipe 6 of impressing, and promote piston dish 7 and remove, the right side slidable mounting of end plate 5 has finger pressure cap 9, the tip that finger pressure cap 9 was provided with exhaust hole 10, the one end that sleeve pipe 6 was kept away from to throttle stopper 8 has been seted up the spacing groove, the side of finger pressure cap 9 is provided with spacing arch 13, spacing arch 13 card is gone into the spacing inslot.

Handle housing 2's left end is rotated and is connected with locking clamp 11, locking clamp 11 is two lamella structures, two lamella locking clamp 11's opposite face fixedly connected with extension springs, it is fixed to insert 1 joint of syringe in the sleeve pipe 6 through locking clamp 11, through setting up sleeve pipe 6 and piston disc 7, gasbag 3 is to 7 gas injections of piston disc, because the size of orifice 12 is certain, the air current is impressed in sleeve pipe 6 gradually, piston disc 7 slow movement supports and presses syringe 1, realize the injection, this design is energetically even, quick compression gasbag 3, the removal of piston disc 7 has the delay, prevent that propelling force gas or big or little and direct action is on syringe 1, cause the unstable problem of injection speed change.

Through setting up finger pressure cap 9, in the use, the thumb is pressed on finger pressure cap 9 to block up its exhaust hole 10, through spacing protruding 13's power transmission, compress tightly air throttle stopper 8, when needs stop the injection, only need loosen the thumb, the pressure gas in the sleeve pipe 6 backs up air throttle stopper 7, discharges from exhaust hole 10, and syringe 1 in the sleeve pipe 6 loses the exogenic action, stops the injection, convenient to use.

In this embodiment, the pushing device further comprises a plurality of throttle plugs 8 with different sizes of the throttle holes 12, different throttle plugs 8 are selected to be assembled and used according to needs, different throttle plugs 8 are replaced, and the speed of the air flow injected into the sleeve 6 is changed accordingly, so that the pushing speed is adjustable.

The working principle is as follows: when the animal experiment injection device with the controllable speed is used, after the injector 1 sucks liquid medicine, the injector 1 is inserted from the left end of the sleeve 6, the locking hoop 11 is used for fixing the injector 1, the handle shell 2 is held by hand, the thumb is pressed on the finger pressing cap 9, the exhaust hole 10 is sealed by the thumb, the air bag 3 is squeezed by hand, the internal air is pressed into the sleeve 6 through the air throttle plug 8 and pushes the piston disc 7 to move, the piston disc pushes the injector 1 to realize injection, when the injection is required to be stopped, the air throttle 8 is pushed open by the pressed air in the sleeve 6 by only loosening the thumb, the air throttle plug 8 is discharged from the exhaust hole 10, the injector 1 in the sleeve 6 loses the external force effect, the injection is stopped, the air flow is gradually pressed into the sleeve 6 due to the fixed size of the throttle hole 12, the piston disc 7 slowly moves to press the injector 1, even if the air bag 3 is compressed rapidly and vigorously, the movement of the piston disc 7 has delay, the problem that the pushing force is larger or smaller and directly acts on the injector 1 to cause unstable injection speed change is solved, different air-saving plugs 8 are replaced, the speed of the air flow injected into the sleeve 6 is changed, and therefore the injection device has the function of stable pushing speed.

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. A speed-controllable animal experiment injection device comprises an injector (1) and a handle shell (2), and is characterized in that: the air bag (3) is arranged in the handle shell (2), the upper surface of the handle shell (2) is provided with the extrusion plate (4) in a sliding way, the right end of the handle shell (2) is fixedly connected with the end plate (5), the side surface of the end plate (5) is provided with a threaded hole, the threaded hole is internally provided with the sleeve (6), the inner wall of the sleeve (6) is connected with the piston disc (7) in a sliding way, the right end of the sleeve (6) is provided with the air-saving plug (8), and the air bag (3) is pressed to press the internal air into the sleeve (6) through the air-saving plug (8), and pushes the piston disc (7) to move, a finger pressing cap (9) is slidably arranged on the right side of the end plate (5), an exhaust hole (10) is arranged at the end part of the finger pressing cap (9), a locking clamp (11) is rotatably connected at the left end of the handle shell (2), the injector (1) inserted into the sleeve (6) is clamped and fixed through a locking clamp (11).

2. A speed controllable animal experiment injection apparatus according to claim 1, wherein: the right end face of the sleeve (6) is provided with a groove, the end part of the air-saving plug (8) is matched with the inner wall of the groove, and the end face of the air-saving plug (8) is provided with a throttle hole (12) which penetrates through the sleeve from left to right.

3. A speed controllable animal experiment injection apparatus according to claim 1, wherein: a limiting groove is formed in one end, away from the sleeve (6), of the air-saving plug (8), a limiting protrusion (13) is arranged on the side face of the finger pressing cap (9), and the limiting protrusion (13) is clamped into the limiting groove.

4. A speed controllable animal experiment injection apparatus according to claim 1, wherein: the sleeve (6) is made of transparent resin or transparent glass.

5. A speed controllable animal experiment injection apparatus according to claim 1, wherein: locking clamp (11) are two lamella structures, the opposite face fixedly connected with extension spring of two lamella locking clamp (11).

6. A speed controlled animal experiment injection apparatus according to any one of claims 1 to 5 wherein: the air throttle device also comprises a plurality of air throttle plugs (8) with different sizes of the throttle holes (12), and different air throttle plugs (8) are selected according to requirements to be assembled and used.