CN209019636U - A kind of electronics pen-type injector - Google Patents

Abstract

The utility model discloses a kind of electronics pen-type injector, including shell and it is separately positioned on shell intracorporal automatic entrance-exit needle mechanism, injection driving mechanism, injecting assembly, power supply module and control and display component；The injecting assembly is set to the front end of shell and is fixedly connected with the front end of the injection driving mechanism, the injecting assembly includes syringe needle, the fixed cover of clamped bottle and transmission bracket, the fixed cover of the clamped bottle is pivotally connected with transmission bracket, the front end of the syringe needle and the fixed cover of clamped bottle is detachably connected, the front end of the fixed cover of the clamped bottle is also arranged with a limit fixed sleeve, and the limit fixed sleeve is equipped with the first convex block and abuts with transmission bracket.The utility model can voluntarily install required cassette bottle liquid medicine using the fixed cover of clamped bottle according to the demand of itself, it also added the function of anti-powder charge maloperation, by utilizing limit fixed sleeve, replace electronic pen syringe only just detachably medicine bottle and when removing syringe needle.

Description

A kind of electronics pen-type injector

Technical field

The utility model relates to a kind of medical special syringe, especially a kind of electronics pen-type injectors.

Background technique

Most of existing electronics pen-type injector to realize fully automated injection, but in injection process there are still compared with More problems, most of such as existing electronics pen-type injector is simply possible to use in the injection of insulin, and the injection of other drugs is not It is able to use the syringe, in addition user is easy to appear maloperation in dressing, when syringe needle is not removed, then carries out more dressing The operation of bottle, be easy to cause secondary injury.

Disadvantage in view of the prior art, the present invention again improve electron injector, which will not be limited It is only used for the injection of insulin, also mountable other medical fluids for having used clamped bottle equipped are injected, and in powder charge slot cover Limiting mechanism is set, only removes medicine bottle and is replaced removing syringe needle Shi Caineng.

Summary of the invention

In order to solve the above technical problems, the utility model provides a kind of electronics pen-type injector, by increasing phase The locating part of pass, prevents powder charge process from the case where maloperation occur.

The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of electronics pen-type injector, including shell Body and it is separately positioned on shell intracorporal automatic entrance-exit needle mechanism, injection driving mechanism, injecting assembly, power supply module and control and aobvious Show component；The injecting assembly is set to the front end of shell and is fixedly connected with the front end of the injection driving mechanism, the note Penetrating component includes syringe needle, the fixed cover of clamped bottle and transmission bracket, and the fixed cover of the clamped bottle is pivotally connected with transmission bracket, described The front end of syringe needle and the fixed cover of clamped bottle is detachably connected, and the front end of the fixed cover of the clamped bottle is also arranged with a limit and fixes Set, the limit fixed sleeve are equipped with the first convex block and abut with transmission bracket.

Further, the first spring, one end of first spring and limit fixed sleeve are arranged on the limit fixed sleeve Front end connection, the other end of the first spring connect with transmission bracket.

Further, the two sides of the fixed cover of the clamped bottle are provided with the second convex block, and the both ends of transmission bracket are respectively set There is the circular through hole for accommodating the rotation of the second convex block.

Further, the limit fixed sleeve is provided with strip groove, and the fixed cover of the clamped bottle is equipped with third convex block, described Third convex block is connected in strip groove.

Further, the side of the fixed cover of the clamped bottle is additionally provided with a torsional spring, the first torsional spring arm and card of the torsional spring The fixed cover connection of formula bottle, the second torsional spring arm of torsional spring and the inner wall of shell connect.

Further, the front end of the shell is internally provided with inductor, the inductor and control and the control of display component Molding block is electrically connected, and inductor is for incuding human skin signal.

Further, the side that the shell is located at injecting assembly offers strip-shaped hole, is provided with powder charge in the strip-shaped hole One end of slot cover and powder charge button, the powder charge slot cover is pivotally connected with shell, and the other end of the powder charge slot cover can pass through dress Medicine button spiral-lock is in strip-shaped hole；The powder charge button is equipped with annular groove, and the annular groove is connected in strip-shaped hole, the powder charge Button can slide back and forth in strip-shaped hole.

Further, the strip-shaped hole includes the first strip-shaped hole and the second strip-shaped hole of connection, one end of the powder charge slot cover It is pivotally connected with the inner side of the first strip-shaped hole, the powder charge button is connected in Article 2 shape hole.

Further, powder charge slot cover front end is equipped with the 4th convex block, and the 4th convex block is matched with annular groove, works as powder charge Button is mobile close to powder charge slot cover, in the 4th convex block merging annular groove, prevents powder charge slot cover from being opened.

Further, shell includes upper cover and lower cover, and upper cover and lower cover pairing constitutes the shell with mounted inside chamber Body, the assembly cavity of enclosure interior are divided into the first sub- cavity, the second sub- cavity and the sub- cavity of third, the power supply module and automatically into Withdraw of the needle mechanism is fixedly installed in the first sub- cavity, and the injection driving mechanism can be set to the second sub- cavity movably forward and backward Interior, the injecting assembly is set in third cavity and is fixedly connected on the front end of the injection driving mechanism, third Cavity is located at the head of shell and offers syringe needle hole in front end.

The beneficial effects of the utility model are: needed for can voluntarily being installed according to the demand of itself using the fixed cover of clamped bottle Cassette bottle liquid medicine also added the function of anti-powder charge maloperation, by utilizing limit fixed sleeve, take electronic pen syringe only It just detachable medicine bottle and is replaced when lower syringe needle；

In addition, avoiding repeated removal shell by cover turn-over at side charging means, electronics pen type injection pen can be effectively improved Service life, the utility model is added to inducing function on the injector, skin is not adjacent to when injection can be effectively prevented and The case where needle is injected out.

Detailed description of the invention

The present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is a kind of module connection figure of the injecting assembly of preferred embodiment of the utility model.

Fig. 2 is a kind of internal module connection figure of preferred embodiment of the utility model.

Fig. 3 is a kind of injecting assembly exploded view of preferred embodiment of the utility model.

Fig. 4 is a kind of internal structure side schematic view of preferred embodiment of the utility model.

Fig. 5 is a kind of torsional spring scheme of installation of preferred embodiment of the utility model.

Fig. 6 is the schematic diagram that a kind of preferred embodiment torsional spring of the utility model is connect with inner walls.

Fig. 7 is a kind of powder charge schematic diagram of preferred embodiment of the utility model.

Fig. 8 is a kind of appearance diagram of preferred embodiment of the utility model.

Fig. 9 is the exploded view of the injection driving mechanism in a kind of preferred embodiment of the utility model.

Figure 10 is the exploded view of the automatic entrance-exit needle mechanism in a kind of preferred embodiment of the utility model.

Figure 11 is the exploded view of the control and display component in a kind of preferred embodiment of the utility model.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below with reference to embodiment and The technical effect of the design of the utility model, specific structure and generation is clearly and completely described in attached drawing, with sufficiently geographical Solve the purpose of this utility model, feature and effect.Obviously, described embodiment is that a part of the utility model is implemented Example, rather than whole embodiments, those skilled in the art's other realities obtained without creative efforts Example is applied, the range of the utility model protection is belonged to.

Referring to figs. 1 to Figure 11, for a kind of preferably embodiment.A kind of electronics pen-type injector, including shell and difference Setting is in shell intracorporal automatic entrance-exit needle mechanism 3, injection driving mechanism 4, injecting assembly 5, power supply module 6 and control and display group Part 7, control and the movement of the control injection driving mechanism 4 of display component 7 simultaneously show injection relevant information, and power supply module 6 is injection Driving mechanism 4 and control and display component 7 are powered；The injecting assembly 5 is set to the front end of shell and drives with the injection The front end of mechanism 4 is fixedly connected, and the injecting assembly 5 includes syringe needle 51, the fixed cover 52 of clamped bottle and transmission bracket 54, the card The fixed cover 52 of formula bottle is pivotally connected with transmission bracket 54, and the front end of the syringe needle 51 and the fixed cover 52 of clamped bottle is detachably connected, The front end of the fixed cover 52 of the clamped bottle is also arranged with a limit fixed sleeve 53, and the limit fixed sleeve 53 is equipped with the first convex block 531 abut with transmission bracket 54.

Preferably, referring to Figure 1 and Figure 3, interchangeable clamped bottle 14 is fixedly mounted in the inside of the fixed cover 52 of the clamped bottle, The mode that the syringe needle 51 is detachably connected with the fixed cover 52 of clamped bottle is helicitic texture, and the rear end of the syringe needle 51 is provided with interior The front end of screw thread, the fixed cover 52 of clamped bottle is provided with external screw thread, and the front end side positioned at transmission bracket 54 is in limit fixed sleeve 53 Tail end be provided with two the first convex blocks 531 of positional symmetry, by rotating syringe needle 51, syringe needle 51 can be fixed on clamped bottle and consolidated Surely the front end of cover 52, during rotating needle 51, the limit fixed sleeve 53 is then pushed by syringe needle 51 backward, until two First convex block 531 is in contact with two side stand of front end of transmission bracket 54, after fixing syringe needle 51, due to limit fixed sleeve 53 The effect of two the first convex blocks 531, the fixed cover 52 of clamped bottle are not able to rotate then, can not replace clamped bottle 14 at this time；When removing needle When first 51, limit fixed sleeve 53 can be then moved along, and so that two the first convex blocks 531 is no longer abutted the front end of transmission bracket, at this time The fixed cover 52 of clamped bottle then can be rotated, and rotate toward the side vacancy of transmission bracket, and replace to clamped bottle 14.

Preferably, referring to Fig. 2, it is arranged with the first spring 55 on the limit fixed sleeve 53, the one of first spring 55 End is connect with the front end of limit fixed sleeve 53, and the other end of the first spring 55 is connect with transmission bracket 54, adds the first spring 55, , due to the reset response of the first spring 55, limit fixed sleeve 53 can be made to be moved along automatically when removing syringe needle 51.

Preferably, referring to Figure 1 and Figure 3, the two sides of the fixed cover 52 of the clamped bottle are provided with the second convex block 521, described There are two symmetrical second convex block 521, the both ends of transmission bracket 54 for setting on the axle center of the fixed cover of clamped bottle for second convex block 521 It is separately provided for the circular through hole of accommodating the second convex block 521 rotation, second convex block 521 interlocking is in through-hole, when tearing open When lower syringe needle 51, the first front end of the convex block 531 far from transmission bracket 54 of limit fixed sleeve 53, the fixed cover 52 of clamped bottle can be justified Shape through-hole is axis rotation.

Preferably, referring to Fig.1, the limit fixed sleeve 53 is provided with the strip groove of two positional symmetries, the clamped bottle It being set on fixed cover 52 there are two third convex block 522, the third convex block 522 is connected in corresponding strip groove, using this structure, The locality of limit fixed sleeve 53 can be made to remain unchanged, avoided when installing syringe needle 51, due to the rotation of syringe needle 51, make to limit The position of fixing sleeve 53 is mobile, causes two the first convex blocks 531 that can not be connected on the corresponding bracket of transmission bracket 54.

Preferably, referring to Fig. 4, Fig. 5 and Fig. 6, the side of the fixed cover 52 of the clamped bottle is additionally provided with a torsional spring 56, torsional spring 56 are fixed by bolts on the side of the fixed cover 52 of clamped bottle, the fixed cover 52 of the first torsional spring arm and clamped bottle of the torsional spring 56 Connection, the second torsional spring arm of torsional spring 56 and the inner wall of shell connect, after installing fixed needle 51, due to limit fixed sleeve 53 First convex block 531 is abutted against with transmission bracket 54, then clamped bottle 52 pairs of torsional springs 56 of fixed cover can be made to oppress, when removing syringe needle When 51, since the first convex block 531 is no longer abutted with transmission bracket 54, clamped bottle 52 pairs of torsional springs 56 of fixed cover are also no longer pressed Compel, torsional spring 56 is released, and the fixed cover 52 of clamped bottle can be made to rotate outward.

Preferably, referring to Fig. 2, in order to which electron injection pen is convenient to replace clamped bottle 14, institute in the present embodiment It states shell and is located at the side of injecting assembly 5 and offer strip-shaped hole, powder charge slot cover 8 and powder charge button 9 are provided in the strip-shaped hole, One end of the powder charge slot cover 8 is pivotally connected with shell, and the other end of the powder charge slot cover 8 can be existed by 9 spiral-lock of powder charge button In strip-shaped hole；The powder charge button 9 is equipped with annular groove, and the annular groove is connected in strip-shaped hole, and the powder charge button 9 can be in item Shape slides back and forth in hole, and after removing syringe needle 51, by pushing powder charge button 9, openable powder charge slot cover 8 fixes clamped bottle Cover 52 is mobile toward the side of powder charge slot cover, replaces to the clamped bottle 14 on the fixed cover 52 of clamped bottle.

Preferably, in order to more preferably be distributed the position of powder charge slot cover 8 and powder charge button 9, the strip-shaped hole includes the of connection One strip-shaped hole and the second strip-shaped hole, one end of the powder charge slot cover 8 and the inner side of the first strip-shaped hole are pivotally connected, the dress Medicine button 9 is connected in the second strip-shaped hole.

Preferably, it in order to fix powder charge slot cover 8, avoids causing to fill due to mobile electron injection pen in injection process The shaking of drug slot lid 8,8 front end of powder charge slot cover described in the present embodiment are equipped with the 4th convex block, the 4th convex block and annular groove phase Cooperation, when powder charge button 9 is mobile close to powder charge slot cover 8, in the 4th convex block merging annular groove, prevent powder charge slot cover 8 from by It opens, increases the setting related to powder charge button 9 of powder charge slot cover 8 and not only contribute to the replacement of medicine bottle, while avoiding because repeatedly It dismantles shell and shell is caused to wear, influence the service life of electron injection pen.

Preferably, shell includes upper cover 1 and lower cover 2, and 2 pairing of upper cover 1 and lower cover, constituting one has mounted inside chamber Shell, the assembly cavity of enclosure interior are divided into the first sub- cavity, the second sub- cavity and the sub- cavity of third, the power supply module 6 and from Dynamic advance and retreat needle mechanism 3 is fixedly installed in the first sub- cavity, and the injection driving mechanism 4 can be set to the second son movably forward and backward In cavity, the injecting assembly 5 is set in third cavity and is fixedly connected on the front end of the injection driving mechanism 4, described The sub- cavity of third is located at the head of shell and offers syringe needle hole in front end, directly synthesizes syringe needle using the front end of upper and lower cover 1,2 Hole helps to expand syringe needle hole and skin contact plane, makes syringe be easier to be adjacent to skin, reduces in injection process because of hand It shakes and causes to skin secondary insult, while the periphery of syringe needle hole and skin contact being provided with the small cusp of triangle dentation, The small cusp plays the role of dispersion pain, by dispersing the attention of injector, pain caused by syringe needle 51 when reducing injection Sense.

Preferably, in order to keep the shell structure of injection pen stronger, upper cover 1 described in the present embodiment and lower cover 2 pass through Connecting plate 11 is fixedly connected with connection ring 10, and the connecting plate 11 is fixed on the tail end of upper and lower cover 1,2, and the connection ring 10 is detained It is connected to the middle part periphery of upper and lower cover 1,2.Simultaneously in order to protect housing forward end, the present embodiment is additionally provided in the housing forward end Protective cover 12, the protective cover 12 are buckled in outside the outside of third cavity and the front end of the second cavity by way of fastening, The component for protecting enclosure interior and dust-proof effect can be played when not using electron injection pen.

Preferably, can go out in injection process because not being adjacent to skin also in order to prevent the case where needle injection, in the present embodiment The front end of the shell is internally provided with inductor 13, i.e., is arranged in the front position of third cavity, the inductor 13 with The control module of control and display component 7 is electrically connected, and inductor 13 is for incuding human skin signal, when sensing human body skin When skin signal, signal just is issued to the control module of control and display component 7, so that it is controlled automatic entrance-exit needle mechanism 3 and starts, and Driving injection driving mechanism 4 and injecting assembly 5 are mobile toward syringe needle hole, then control injection driving mechanism 4 and complete injection, it is preferable that Pressure sensor or photoelectric sensor can be used in inductor 13, in conjunction with the requirement of electronic pen syringe, feels in the present embodiment Device 13 is answered preferentially to use the first photoelectric sensor.

Preferably, referring to Fig. 9, the injection driving mechanism 4 includes injecting motor 40, the second photoelectric sensor 41, motor Outside shell 43, motor transmission shaft 44, concentric locking collar 45, screw rod fixing sleeve 46, screw rod 47, pushing block 48, nut 49, housing and transmission shaft Cover；The injecting motor 40 is set in electric machine casing 43, and the output shaft of the injecting motor 40 is stretched by 43 front end of electric machine casing Out, and with motor transmission shaft 44 it is fixedly connected；Transmission shaft outer cover is sheathed on outside motor transmission shaft 44, and concentric locking collar 45 butts up against biography Moving axis outer cover front end；Housing is sheathed on outside concentric locking collar 45 and transmission shaft outer cover, housing and 45 company of being threadably secured of concentric locking collar It connects；Screw rod fixing sleeve 46 is set to inside concentric locking collar 45 and motor transmission shaft 44, with the rotation of motor transmission shaft 44, opposite concentric locking collar 45 rotations；Nut 49 is fixedly installed on the front end of concentric locking collar 45, and the front end of screw rod 47 is fixedly connected on pushing block 48, and rear portion passes through Axially directed mechanism is set to inside screw rod fixing sleeve 46, and screw rod 47 and nut 49 cooperate；The fixed cover 52 of the clamped bottle is fixed It is set to the front end of housing；Wherein the second photoelectricity driver 41 is electrically connected with the control module of control and display component 7, is used In detection injecting motor 40 at work whether normal operation, injecting motor 40 can not normal operation when, the second photoelectricity driver 41 just issue inductive signal to the control module of control and display component 7, show that injecting motor 40 is different in control and display component 7 Reason condition.

Preferably, referring to Fig.1 0, automatic entrance-exit needle mechanism 3 includes electric machine support 35, rifle bar 34, advance and retreat needle motor 36, pushing block 33, bearing 32 and bracket cover 31；36 front end of advance and retreat needle motor is fixed on electric machine support 35, advance and retreat needle motor 36 Output shaft protrude into forward in electric machine support 35；34 one end of rifle bar is fixedly connected with output shaft, and the other end is set on bearing 32, Bearing 32 is set on bracket cover, and bracket cover is fixed on 35 front end of electric machine support；Pushing block 33 is bolted on rifle bar 34；It promotes Block 33 is provided with propulsion interconnecting piece, which stretches out electric machine support 35 and be fixedly connected with the injection driving mechanism 4.

Preferably, referring to Fig.1 1, the control and display component 7 include transparent cover plate 71, OLED screen 73, OLED circuit board 74, pcb board 75, turncap 76 and shuttle switch 77.

Display window is offered in the present embodiment on shell, OLED screen 73 is fixedly installed at display window, OLED electricity Road plate 74 is set to enclosure interior, is electrically connected with pcb board 75, and OLED circuit board 74 is electrically connected with OLED screen 73, aobvious on shell Show that window periphery offers 71 mounting groove of transparent cover plate, transparent cover plate 71 is fixedly installed at 71 mounting groove of transparent cover plate, OLED Shield and be provided with silicagel pad 72 between 73 edges and transparent cover plate 71, signal acquisition, data processing, data are provided on pcb board 75 The functional circuits such as storage, display output, control output, while it being additionally provided with the wireless communication module of communication with the outside world, therefore this reality Applying electronics pen-type injector in example can also be by connection cell phone application or computer end user software, by cell phone application or computer end Required parameter setting when also achievable injection is set after relevant parameter in user software.

Preferably, input signal sampler is shuttle switch 77 and turncap 76 in the present embodiment, and shuttle switch 77 fills Set on the rear end of the second sub- cavity, turncap 76 is set to hull outside, and cooperates with shuttle switch 77, shuttle switch 77 and Pcb board 75 is electrically connected, and after adjusting turncap 76 and the setting injection parameters of shuttle switch 77, electronic type injection pen is adjacent to skin Skin, electronic type injection pen can be automatically performed injection.

Electronics pen type injection pen provided by above-described embodiment, working principle and engineering are as follows:

1 is set to the clamped bottle 14 of preform injection using the fixed cover 52 of clamped bottle the housing front end of injection driving mechanism 4, dress Syringe needle 51 is prepared on the fixing sleeve 53 of injecting assembly 5；

2 set parameter according to self-demand, by adjusting turncap 76 and shuttle switch 77, can also pass through wireless connection Cell phone application or computer end user software are configured relevant parameter and data exchange；

3 press the syringe needle hole of electronics pen-type injector on injection point skin, when inductor 13 senses human skin After signal, electronics pen-type injector starts to inject.

The advance and retreat needle motor 36 of 4 automatic entrance-exit needle mechanisms 3 starts running, and rifle bar 34 is driven to rotate, and drives pushing block 33 It moves forward, the propulsion interconnecting piece on pushing block 33 drives injection driving mechanism 4 to move forward, so that before injection driving mechanism 4 Hold the injecting assembly 5 of installation is whole to move forward, syringe needle 51 is stretched out by the syringe needle hole of housing forward end at this time, and it is deep to be pierced into skin setting After degree, injecting motor 40 shuts down；

The injecting motor 40 of 5 injection driving mechanisms 4 starts running, and drives motor transmission shaft 44 to rotate, and then drive screw rod Fixing sleeve 46 and screw rod 47 rotate；Screw rod 47 is while rotation, by the guiding role of nut 49, opposite screw rod fixing sleeve 46 It moves forward, driving pushing block 48 pushes the rubber stopper in clamped bottle 13 to move forward, and then will be in injecting liquid drug to human body；

6 finish when injecting liquid drug, inject the injecting motor antiport of driving mechanism 4, and driving pushing block 48 is automatically fallen back on Initial position；

36 antiport of advance and retreat needle motor of 7 automatic entrance-exit needle mechanisms 3 drives injection driving mechanism 4 to move backward, so that The injecting assembly 5 of injection 4 front end of driving mechanism installation is whole to be moved backward, and syringe needle 51 is contracted by the syringe needle hole of housing forward end at this time It returns.

The above, the only better embodiment of the utility model, but the utility model is not limited to above-mentioned reality Example is applied, as long as its technical effect for reaching the utility model with any same or similar means, all should belong to the utility model Protection scope.

Claims (10)

1. a kind of electronics pen-type injector, including shell and be separately positioned on shell intracorporal automatic entrance-exit needle mechanism (3), injection is driven Motivation structure (4), injecting assembly (5), power supply module (6) and control and display component (7)；It is characterized by: the injecting assembly (5) it is set to the front end of shell and is fixedly connected with the front end of injection driving mechanism (4), the injecting assembly (5) includes The fixed cover (52) of syringe needle (51), clamped bottle and transmission bracket (54), the fixed cover (52) of the clamped bottle and transmission bracket (54) pivot Turn connection, the front end of the syringe needle (51) and the fixed cover (52) of clamped bottle is detachably connected, the fixed cover (52) of the clamped bottle Front end is also arranged with a limit fixed sleeve (53), and the limit fixed sleeve (53) is equipped with the first convex block (531) and transmission bracket (54) it abuts.

2. electronics pen-type injector according to claim 1, it is characterised in that: be arranged on the limit fixed sleeve (53) One end of first spring (55), first spring (55) is connect with the front end of limit fixed sleeve (53), the first spring (55) The other end is connect with transmission bracket (54).

3. electronics pen-type injector according to claim 1, it is characterised in that: the two sides of the fixed cover (52) of the clamped bottle It is provided with the second convex block (521), the both ends of transmission bracket (54) are separately provided for accommodating the second convex block (521) rotation Circular through hole.

4. electronics pen-type injector according to claim 1, it is characterised in that: the limit fixed sleeve (53) is provided with item Shape slot, the fixed cover (52) of the clamped bottle are equipped with third convex block (522), and the third convex block (522) is connected in strip groove.

5. electronics pen-type injector according to claim 1, it is characterised in that: the side of the fixed cover (52) of the clamped bottle It is additionally provided with a torsional spring (56), the first torsional spring arm of the torsional spring (56) is connect with the fixed cover (52) of clamped bottle, torsional spring (56) The connection of the inner wall of second torsional spring arm and shell.

6. electronics pen-type injector according to claim 1, it is characterised in that: the front end of the shell is internally provided with sense It answers device (13), the inductor (13) and control and the control module electric connection of display component (7), inductor (13) are used to feel Answer human skin signal.

7. electronics pen-type injector according to claim 1, it is characterised in that: the shell is located at injecting assembly (5) Side offers strip-shaped hole, and powder charge slot cover (8) and powder charge button (9) are provided in the strip-shaped hole, the powder charge slot cover (8) One end is pivotally connected with shell, and the other end of the powder charge slot cover (8) can be by powder charge button (9) spiral-lock in strip-shaped hole；Institute Powder charge button (9) are stated equipped with annular groove, the annular groove is connected in strip-shaped hole, and the powder charge button (9) can be in strip-shaped hole It slides back and forth.

8. electronics pen-type injector according to claim 7, it is characterised in that: the strip-shaped hole includes first of connection Shape hole and the second strip-shaped hole, one end of the powder charge slot cover (8) and the inner side of the first strip-shaped hole are pivotally connected, the powder charge Button (9) is connected in the second strip-shaped hole.

9. electronics pen-type injector according to claim 7, it is characterised in that: powder charge slot cover (8) front end is equipped with the Four convex blocks, the 4th convex block are matched with annular groove, and when powder charge button (9) are mobile close to powder charge slot cover (8), the described 4th is convex Block is placed in annular groove, makes powder charge slot cover (8) that cannot be opened.

10. electronics pen-type injector according to claim 1, it is characterised in that: shell includes upper cover (1) and lower cover (2), Upper cover (1) and lower cover (2) pairing, constitute the shell with mounted inside chamber, and the assembly cavity of enclosure interior is divided into the first son Cavity, the second sub- cavity and the sub- cavity of third, the power supply module (6) and automatic entrance-exit needle mechanism (3) are fixedly installed on first In sub- cavity, the injection driving mechanism (4) can be set to movably forward and backward in the second sub- cavity, and the injecting assembly (5) sets It is placed in third cavity and is fixedly connected on the front end of injection driving mechanism (4), the sub- cavity of third is located at shell Head simultaneously offers syringe needle hole in front end.