CN107485760A

CN107485760A - A kind of injection device

Info

Publication number: CN107485760A
Application number: CN201710612287.7A
Authority: CN
Inventors: 李镇洪
Original assignee: RUIKD PHOTOELECTRIC TECHNOLOGY Co Ltd
Current assignee: RUIKD PHOTOELECTRIC TECHNOLOGY Co Ltd
Priority date: 2017-07-25
Filing date: 2017-07-25
Publication date: 2017-12-19
Anticipated expiration: 2037-07-25
Also published as: CN107485760B

Abstract

The invention discloses a kind of injection device, including syringe body and syringe needle, in addition to：Press component；It is for the component that spins that the transform linear motion that provides press component is rotary motion, single depression press component, the rotation radian for the component that spinsWherein, n is the positive integer more than 2；Connector, connector is provided with to spin disk with the component that spins matches first, and first disk that spins circumferentially is divided into n V-groove；Propulsion assembly, propulsion assembly include line thread axle and sealing piston, and one end of line thread axle couples with sealing piston, the other end and the connector thread connection of line thread axle.The injection device, the kind of drive to be moved along a straight line by the rotary motion that moves along a straight line, piston is pressed every time and promotes unit distance, i.e., pressing injects the amount of the liquid of unit every time, makes process more controllable, really realizes " foolproof " simple precisely injection.

Description

A kind of injection device

Technical field

The present invention relates to a kind of medical and beauty treatment instruments Appliances, more particularly to a kind of injection device.

Background technology

As people more carry out the acceptance more and more higher to micro-shaping, various micro-shaping injection operations were once regarded as " freezing Age " secret formula.Micro-shaping is exactly using high-tech medical technology, is not required to operate on, to wrinkle of skin at injection water laser accunputure, glass urine Acid, botulinum toxin etc., generally main injection areas is face.If water laser accunputure is that directly skin is noted using hyaluronic acid Penetrate, skin of face water can be allowed to moisten, and tender, gloss is bright, solves the problems, such as that skin corium lacks moisture, wakes up cytothesis function, Reappear the cell for repairing the withered fracture of skin.The smooth flexible skin that compacts is remolded in a short time, and the injection of water laser accunputure is existing Turn into the advanced face beautifying health keeping product of female consumer, it is deep to be liked by female consumer.

But water laser accunputure injection in the market is that the mode for taking traditional syringe-type propelling extrusion is injected, because of face The intricate property of nerve, in use because the dynamics of user is difficult to control, the depth for occurring injecting is different, injection How much inequalities of amount, cause the nutriments such as hyaluronic acid by skin uniform pickup, can not even cause the damage of face nerve , there are face paralysis in wound, uneven caused by facial cortical necrosis, phenomena such as collapsing, potential safety hazard be present.

The content of the invention

For overcome the deficiencies in the prior art, it is an object of the invention to a kind of controllable injection device of injection volume.

The purpose of the present invention is achieved through the following technical solutions：

A kind of injection device, including syringe body and syringe needle, in addition to：

Press component；

Transform linear motion for press component to be provided is the component that spins of rotary motion, is pressed described in single depression Component, the rotation radian of the component that spins areWherein, n is the positive integer more than 2；

Connector, the connector are provided with first to match with the component that spins and spun disk, and described first spins disk Circumferentially it is divided into 2n V-groove；

Propulsion assembly, the propulsion assembly include line thread axle and sealing piston, one end of the line thread axle with The sealing piston connection, the other end of the line thread axle and the connector thread connection.

Further, the component that spins includes camshaft, cam and the cam shell being socketed successively；Footpath on the camshaft Guide rod is provided with to ground, and the tail end of the camshaft is provided with to spin a pair of first arcs that disk V-groove matches with described first Hook；Being dug on the cam has the pilot hole to match with the guide rod, flat where the axis and pilot hole of the cam Face is in 30-60 ° of angle, the cam and the cam shell clamping.

Further, the cam is provided with snap-on.

Further, described first disk that spins is arranged at the middle part of the connector, and the connector top is arranged in institute State cam.

Further, the cam shell, which is provided with, spins that disk is corresponding second to spin disk with described first；The connector Tail end is provided with the second arc shaped hook to match with the second V-groove for spinning disk.

Further, the camshaft is provided with and a pair of axially in parallel buffering otch in the both sides of the guide rod.

Further, n=4.

Further, the press component includes button and back-moving spring, one end of the back-moving spring and the button Connection, the other end are connected with the component that spins.

Further, the press component also includes being used for the sheath body being socketed on the button.

Further, the injection device also includes the guidance set for locating injection.

Compared with prior art, the beneficial effects of the present invention are：

Injection device provided by the invention, by the kind of drive of linear motion-rotary motion-linear motion, press every time Piston is pressed to promote unit distance, i.e., pressing injects the amount of the liquid of unit every time, makes process more controllable, will not be because of difference Operator different dynamics and cause injection volume uncontrollable, really realize " foolproof " simple precisely injection.

Brief description of the drawings

Fig. 1 is the structural representation of the present invention；

Fig. 2 is the Longitudinal cross section schematic of the present invention；

Fig. 3 is the fractionation schematic diagram of press component of the invention, the component that spins, connector and propulsion assembly；

Fig. 4 is the Longitudinal cross section schematic of connector；

Fig. 5 is the Longitudinal cross section schematic of cam shell；

Fig. 6 is the structural representation of guidance set.

In figure, each reference：1st, syringe body；2nd, syringe needle；3rd, press component；31st, button；32nd, back-moving spring； 33rd, sheath body；4th, spin component；41st, camshaft；411st, guide rod；412nd, the first arc shaped hook；413rd, otch is buffered；42nd, cam； 421st, pilot hole；422nd, snap-on；43rd, cam shell；431st, second spin disk；432nd, hole clipping；433rd, spacing edge；5th, connector；51、 First spins disk；52nd, V-groove；53rd, the second arc shaped hook；6th, propulsion assembly；61st, line thread axle；62nd, sealing piston；7th, it is oriented to Component；71st, the first guiding shell；72nd, the second guiding shell；73rd, guide sleeve；74th, needle point；75th, guide spring.

Embodiment

Below, with reference to accompanying drawing and embodiment, the present invention is described further, it is necessary to which explanation is, not Under the premise of afoul, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination Example.

In detailed description below, such as non-specified otherwise is described as " tail ", " top " etc. have temporald eixis Word, it is understood that to the temporald eixis of accompanying drawing.

As shown in figure 1, a kind of injection device, including syringe body and syringe needle, in addition to：

Press component 3；

As shown in Figures 2 and 3, the transform linear motion for press component 3 to be provided is the component 4 that spins of rotary motion, Press component 3 described in single depression, the rotation radian of the component 4 that spins areWherein, n is the positive integer more than 2；

Connector 5, spun disk 51 as shown in figure 4, the connector 5 is provided with first to match with the component 4 that spins, Described first disk 51 that spins circumferentially is divided into 2n V-groove 52；

Propulsion assembly 6, the propulsion assembly 6 include line thread axle 61 and sealing piston 62, the line thread axle 61 One end couple with the sealing piston 62, the other end of the line thread axle 61 and the thread connection of connector 5.

Injection device provided by the invention, after pressing press component 3, spin the straight line force that press component 3 is subject to by component 4 Revolving force is converted into, is matched again in connector 5 with the screw thread of line thread axle 61 afterwards, is again re-converted into revolving force directly Line power.

In this course, the radian of the component 4 that spins rotation can be divided exactly by circumference, that is, after pressing integer time press component 3, The component 4 that spins rotates a circle, and when pressing press component 3 every time with guarantee, the displacement that sealing piston 62 promotes is all equal.

In the injection device, comparatively ideal size design should meet following condition：Press press component 3 once, cam To bottom offset 8mm, and sealing piston, to bottom offset 0.125mm, the injection device injects 25 μ L decoctions.

In above-mentioned injection device specifically, the component 4 that spins includes camshaft 41, cam 42 and the cam being socketed successively Shell 43；Radially it is provided with guide rod 411 on the camshaft 41, the tail end of the camshaft 41 is provided with to spin disk with described first A pair of first arc shaped hooks 412 that 51 V-groove 52 matches；This is distributed to the first arc shaped hook in central point；The cam Being dug on 42 has the pilot hole 421 to match with the guide rod 411, axis and the place of pilot hole 421 of the cam 42 Plane is in 30-60 ° of angle, the cam 42 and the clamping of cam shell 43.Its operation principle is as follows：When pressing press component 3, Cam 42 is to the direction displacement of syringe needle 2, so that the guide rod 411 being connected in pilot hole 421 is along the displacement of pilot hole 421, and then Camshaft 41 is rotated relative to cam 42, drive connector 5 to rotate by the first arc shaped hook 412 of the afterbody of cam 42, then lead to The screw thread that connector 5 is crossed with line thread axle 61 matches, so as to promote sealing piston 62 along the inwall displacement of syringe body 1.This Injection device is will to be axially moved to be converted into radial motion by pilot hole 421, in 30-60 ° of angle namely it is meant that The ratio of radial displacement and axial displacement of the camshaft 41 in the presence of press component 3 meet trigonometric function relation i.e. (

On the basis of the above, the clamping relation between cam 42 and cam shell 43, including but not limited in the following manner：It is described Cam 42 is provided with snap-on 422.Can further, the cam shell 43 is provided with the hole clipping 432 that a snap-on 422 matches. Hole clipping 432 on the one hand can the anti-displacement to axial or radial displacement for reducing cam shell 43 and cam 42 with matching for snap-on 422.

On the basis of the above, in order to reduce the dislocation probability of connector 5 and cam 42, described first disk 51 that spins is arranged at The middle part of the connector 5, the connector 5 are arranged in the cam 42, i.e., connector 5 can along cam 42 vertically under Shuttle.

On the basis of the above, it is described convex as shown in figure 5, in order to reduce eccentric probability of the connector 5 in rotary course axis Hub 43, which is provided with, spins that disk 51 is corresponding second to spin disk 431 with described first；The tail end of connector 5 is provided with and the second rotation Connect the second arc shaped hook 53 that the V-groove 52 of disk 431 matches.That is, the first arc shaped hook 412 is synchronized with the movement with the second arc shaped hook 53, So that connector 5 is after each transmission process terminates, its axle still also overlapping of axles with cam shell 43.

This injection device, because guide rod 411 is during long-term use, while by active force axially and radially, Easy aging fracture.In order to improve the durability of guide rod 411, the camshaft 41 is provided with the both sides of the guide rod 411 With a pair of axially in parallel buffering otch 413.The buffering otch 413 can be that thickness reducing part can also be perforation.

Specifically, the projection radian of the pilot hole 421 diametrically is this injection devicePreferably, the projection Radian isThat is n=4；I.e. single depression press component 3 when, the rotation radian of the component 4 that spins isThe connector 5 First disk 51 that spins be divided into 8 V-grooves 52.

This injection device is specifically, described multiple as shown in Fig. 2 the press component 3 includes button 31 and back-moving spring 32 One end of position spring 32 couples with the button 31, and the other end is connected with the component 4 that spins.Further, it is described to press Pressure component 3 also includes being used for the sheath body 33 being socketed on the button 31.Can further, the front end of the cam shell 43 is set Have and press the spacing along 433 of displacement for limiting the sheath body 33.

This injection device further, in order to improve the accuracy of injection, i.e., in order that per injection syringe needle 2 and skin Angle is more controllable, and the injection device also includes the guidance set 7 for locating injection.As shown in fig. 6, guidance set 7 can be with Including but not limited to lower component the first guiding shell 71, the second guiding shell 72, guide sleeve 73, needle point 74 and guide spring 75, its In the first guiding shell 71 and the second guiding shell 72 be engaged, form a body.

Above-mentioned embodiment is only the preferred embodiment of the present invention, it is impossible to the scope of protection of the invention is limited with this, The change and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention Claimed scope.

Claims

1. a kind of injection device, including syringe body and syringe needle, it is characterised in that also include：

Press component；

For the component that spins that the transform linear motion that provides press component is rotary motion, pressing group described in single depression Part, the rotation radian of the component that spins areWherein, n is the positive integer more than 2；

Connector, the connector are provided with first to match with the component that spins and spun disk, and described first spins disk along circle It is divided into 2n V-groove week；

Propulsion assembly, the propulsion assembly include line thread axle and sealing piston, one end of the line thread axle with it is described Sealing piston couples, the other end of the line thread axle and the connector thread connection.

2. injection device as claimed in claim 1, it is characterised in that it is described spin component include be socketed successively camshaft, Cam and cam shell；Guide rod is radially provided with the camshaft, the tail end of the camshaft is provided with to spin with described first A pair of first arc shaped hooks that disk V-groove matches；Being dug on the cam has the pilot hole to match with the guide rod, described Plane where the axis and pilot hole of cam is in 30-60 ° of angle, the cam and the cam shell clamping.

3. injection device as claimed in claim 2, it is characterised in that the cam is provided with snap-on.

4. injection device as claimed in claim 2, it is characterised in that described first disk that spins is arranged in the connector Portion, the connector top are arranged in the cam.

5. injection device as claimed in claim 2, it is characterised in that the cam shell is provided with relative with described first disk that spins Second answered spins disk；The connector tail end is provided with the second arc shaped hook to match with the second V-groove for spinning disk.

6. injection device as claimed in claim 2, it is characterised in that the camshaft the both sides of the guide rod be provided with A pair of axially in parallel buffering otch.

7. injection device as claimed in claim 1, it is characterised in that n=4.

8. injection device as claimed in claim 1, it is characterised in that the press component includes button and back-moving spring, institute The one end for stating back-moving spring couples with the button, and the other end is connected with the component that spins.

9. injection device as claimed in claim 8, it is characterised in that the press component also include being used for being socketed on it is described by Sheath body on button.

10. injection device as claimed in claim 1, it is characterised in that the injection device is also included for locating injection Guidance set.