CN201469817U

CN201469817U - Continuous injector

Info

Publication number: CN201469817U
Application number: CN200920307901XU
Authority: CN
Inventors: 王喜增
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-08-13
Filing date: 2009-08-13
Publication date: 2010-05-19
Anticipated expiration: 2019-08-13

Abstract

The utility model relates to a continuous injector, which comprises a sleeve, a piston and a mandrel, wherein the piston is arranged at the front end of the mandrel and is driven by the mandrel to move in the sleeve; the mandrel is internally provided with an infusion passage communicated with a sleeve cavity; a needle bed is arranged at the front end of the sleeve; the rear part of the sleeve is connected with a fixed handle and a movable handle; the fixed handle is internally provided with a return spring connected with the movable handle; the lower end of the movable handle is hinged with the fixed handle through a pin roll; the upper end of the movable handle is fixedly connected with the mandrel through a connecting block and a fixed pin; and an injection volume adjusting screw contacted with the movable handle is assembled at the lower end of the movable handle and pushes the movable handle to rotate around the pin roll hinged with the fixed handle so as to drive the mandrel to move and realize the adjustment of injection volume. Since a staff gauge is arranged on the mandrel, the sleeve can be processed by an opaque metal material. The utility model has accurate fixed quantity, small injection error, simple adjusting operation and convenient use.

Description

Continuous injector

Technical field

This utility model relates to a kind of veterinary and uses medical apparatus and instruments, specifically a kind of continuous injector.

Background technology

We know that at present, the veterinary mainly comprises sleeve, piston, core bar with continuous injector on the market, piston is installed in the core bar front end, moved around in sleeve by the core bar drive, be provided with an infusion channel that communicates with the sleeve cavity in the core bar, barrel forward end is provided with needle holder.Mostly the continuous injector injection mechanism is handle and connecting rod piston type pushing mechanism, hold fixed handle and can realize continuous injection, the joint that entering the medicine position during input medicinal liquid continuously has connects a sebific duct, the sebific duct other end connects a minute hand, minute hand inserts in the original-pack medicinal liquid bottle, or use standby reservoir, the medicine of original-pack medicinal liquid bottle is poured in the standby reservoir be connected on the continuous injector.Piston rear end is provided with by positioning cap and regulates the adjusting device that silk constitutes, being set directly at that graduated scale has regulated on the silk, rotate along with regulating silk to rotate during use, observe inconvenience, quantitatively inaccurate, error is big, regulating silk rubs mutually with overcoat, in the course of time graduation mark wearing and tearing are unclear, can't regulate injection volume, and ubiquity can only be adjusted roughly on scale and can't carry out the trace adjusting.The scale that also has is located on the sleeve, and sleeve can only adopt transparent plastic material to make, cracky, aging fast, error is big.

Summary of the invention

Technical problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, provide a kind of rational in infrastructure, quantitatively accurate, easy to adjust, error is little, cost is low, operate reliable continuous injector.

The technical scheme in the invention for solving the above technical problem is: a kind of continuous injector, it includes sleeve, piston, core bar, piston is installed in the core bar front end, drive in sleeve mobile by core bar, barrel forward end is provided with needle holder, the rear portion connects an integral cast handle and flexible handle, be provided with the back-moving spring that is connected with flexible handle in the integral cast handle, the flexible handle lower end is hinged by bearing pin and integral cast handle, the upper end is connected and fixed by contiguous block and steady pin and core bar, it is characterized in that: the integral cast handle lower end is provided with a screwed hole, its assembling one is regulated silk with the contacted injection volume of flexible handle, injection volume is regulated silk promotion flexible handle and is rotated around bearing pin, drives core bar and moves, and realizes the adjusting of injection volume.

The said core bar of this utility model is provided with scale.

The said injection volume of this utility model is regulated silk and is provided with complementary scale.

The said injection volume of this utility model is regulated on the silk and also is provided with the locking nut that matches, and locking nut is resisted against the integral cast handle screwed hole outside.

The said flexible handle of this utility model bottom is a fork configuration, it includes fork pawl and lower fork pawl, the fork ZHUANLIAN that goes up of back-moving spring lower end and flexible handle bottom connects, the back-moving spring upper end is regulated silk with spring and is connected, and spring is regulated silk and the pulling force that is located at the nut fit adjustment back-moving spring on the integral cast handle.

This utility model integral cast handle lower end is provided with injection regulating mechanism, and core bar is provided with scale, and against existing technologies, this utility model only need rotate injection volume and regulate silk when using, can carry out coarse adjustment and fine setting, quantitatively accurately, regulates simple to operate, easy to use.Because scale is located on the core bar, like this, sleeve just can adopt opaque metal material processing, the intensity height, and cracky and wearing out not, the machining accuracy height, injection error is little.

Description of drawings

Below in conjunction with accompanying drawing this utility model is further specified.

Fig. 1 is this utility model structural representation.

Number in the figure is: 1. needle holder, 2. sleeve, 3. piston, 4. lead set, 5. scale, 6. contiguous block, 7. core bar, 8. joint, 9. steady pin, 10. flexible handle, 11. bearing pin, 12. screwed holes, 13. locking nuts, 14. complementary scale, 15. injection volumes are regulated silk, 16. back-moving springs, 17. integral cast handle, 18. nuts, 19. springs are regulated silk.

The specific embodiment

As can be seen from Figure 1 a kind of continuous injector, it includes sleeve 2, piston 3, core bar 7, piston 3 is installed in core bar 7 front ends, moved in sleeve 2 by core bar 7 drives, be provided with an infusion channel that communicates with sleeve 2 cavitys in the core bar 7, sleeve 2 front ends are provided with needle holder 1, the rear end of sleeve 2 is equipped with lead set 4, lead set 4 is provided with the core bar through hole, and core bar 7 rear ends connect a joint 8, are used for connecting infusion tube or infusion bottle.Above-mentioned composition structure and prior art are basic identical, no longer describe in detail.

This utility model sleeve 2 rear portions also are connected and fixed handgrip 17 and flexible handle 10, integral cast handle 17 and flexible handle 10 common formation pistol type injection handles.Flexible handle 10 lower ends are hinged by bearing pin 11 and integral cast handle 17, and the upper end is connected and fixed with core bar 7 by contiguous block 6 and steady pin 9.Said flexible handle 10 bottoms are fork configuration, and it is provided with fork pawl and lower fork pawl.Be provided with the back-moving spring 16 that is connected with flexible handle 10 in the integral cast handle 17.The fork ZHUANLIAN that goes up of back-moving spring 16 lower ends and flexible handle 10 bottoms connects, and back-moving spring 16 upper ends are regulated silk 19 with spring and are connected, and spring is regulated silk 19 and the pulling force that is located at the nut 18 fit adjustment back-moving springs on the integral cast handle.Flexible handle 10 upper ends are connected and fixed with core bar 7 by contiguous block 6 and steady pin 9.Specifically be that flexible handle 10 is connected with contiguous block 6, contiguous block 6 is enclosed within core bar 7 outsides, and is fixing by steady pin 9.

This utility model core bar 7 is provided with scale 5, and scale 5 is used for marking corresponding injection volume.Integral cast handle 17 lower ends are provided with a screwed hole 12, its assembling one is regulated silk 15 with the contacted injection volume of the lower fork pawl of flexible handle, injection volume is regulated silk 15 promotion flexible handles 10 and is rotated around the bearing pin 11 with the integral cast handle hinge, flexible handle 10 is a fulcrum with bearing pin 11, under the effect of lever principle, drive core bar 7 grades and move, by regulating the relative position of core bar 7, regulate, the range of activity of control piston 3 in continuous injector sleeve 2, and then realize the adjusting of injection volume.As a same reason, injection volume is regulated silk 15 and also can be installed on the flexible handle, regulates the position of flexible handle relative fixed handgrip, carries out the adjusting of injection volume.

The said injection volume of this utility model is regulated silk 15 adjusted silks and is provided with a plane, and the plane is provided with complementary scale 14, is convenient to regulate observe, and realizes the fine setting of injection volume.Said injection volume is regulated on the silk 15 and also is provided with the locking nut 13 that matches, and locking nut 13 is resisted against screwed hole 12 outsides of integral cast handle 17.The injection volume that is used for being locked is regulated silk 15.

This utility model use is: regulate silk 15 by the rotary injection amount, observe core bar 7 scale 5 scales corresponding with lead set 4 end faces, injection volume what are determined, rotation lock nut 13 locking injection volumes are regulated silk 3.Also according to the size of injection volume, rotating spring is regulated the position of silk 19 in nut 18, regulates the pulling force of back-moving spring 16, realizes the adjusting of injection force size, makes operation light, comfortable feel.During injection, the relative fixed handgrip, the flexible handle of holding with a firm grip, the core bar that its drive is located at the flexible handle upper end moves, and realizes injection, looses one's grip, and back-moving spring 16 resets flexible handle, and the flexible handle of holding with a firm grip again carries out injection next time.Reciprocal with this, realize injection continuously.This utility model simple structure, it is accurately convenient to regulate injection volume, has safe in utilizationly, reliable, and applied range has prolonged life-span of continuous use device, is a kind of ideal continuous injector.

Claims

1. continuous injector, it includes sleeve, piston, core bar, piston is installed in the core bar front end, drive in sleeve mobile by core bar, barrel forward end is provided with needle holder, the rear portion connects an integral cast handle and flexible handle, be provided with the back-moving spring that is connected with flexible handle in the integral cast handle, the flexible handle lower end is hinged by bearing pin and integral cast handle, and the upper end is connected and fixed by contiguous block and steady pin and core bar, and it is characterized in that: the integral cast handle lower end is provided with a screwed hole, its assembling one is regulated silk with the contacted injection volume of flexible handle, injection volume is regulated silk promotion flexible handle and is rotated around bearing pin, drives core bar and moves, and realizes the adjusting and the injection of injection volume.

2. continuous injector according to claim 1 is characterized in that: said core bar is provided with scale.

3. continuous injector according to claim 1 is characterized in that: said injection volume is regulated silk and is provided with complementary scale.

4. continuous injector according to claim 1 is characterized in that: said injection volume is regulated on the silk and also is provided with the locking nut that matches, and locking nut is resisted against the integral cast handle screwed hole outside.

5. continuous injector according to claim 1, it is characterized in that: said flexible handle bottom is a fork configuration, it includes fork pawl and lower fork pawl, the fork ZHUANLIAN that goes up of back-moving spring lower end and flexible handle bottom connects, the back-moving spring upper end is regulated silk with spring and is connected, and spring is regulated silk and the pulling force that is located at the nut fit adjustment back-moving spring on the integral cast handle.