CN212973773U - Novel rechargeable needleless injection promotes device - Google Patents

Abstract

The utility model relates to the technical field of pushing injection equipment, in particular to a novel charging type needle-free injection pushing device, which comprises a holding handle, wherein a pushing injection device is arranged on the holding handle, and a medicine injection device is arranged on the pushing injection device; the injection device comprises a fixed cylinder arranged on the holding handle; the injection device is equipped with the lithium cell mounting box including setting up the cylinder of tip before the solid fixed cylinder in the recess, is equipped with injection mechanism in the solid fixed cylinder, and injection mechanism is equipped with the boosting piston including setting up the micro motor in the solid fixed cylinder, and the end that micro motor was kept away from to the guide pillar, and the end of connecting rod is equipped with and pushes the piston. The utility model discloses be convenient for change the shower nozzle, and can carry out the continuous injection operation, can also adjust single injection volume simultaneously, the person of facilitating the use uses.

Description

Novel rechargeable needleless injection promotes device

Technical Field

The utility model relates to a promote injection equipment technical field, specifically speaking relates to a novel rechargeable needleless injection promotes device.

Background

At present, the injector with the needle is mainly used for injection clinically, the needle is easy to cause the defects of injection pain, bleeding, tissue injury and the like when penetrating the skin, in order to overcome the defects, the needle-free injector is gradually popularized and used due to the advantages of no needle, no pain, tiny wound surface, dispersed distribution and penetration of local liquid medicine, but most of the needle-free injectors cannot carry out continuous injection when in use, and in addition, the nozzle cannot be replaced, so that certain inconvenience is brought to users.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel rechargeable needleless injection thrust unit to solve the vast majority of needleless injectors that provide in the above-mentioned background art and when using, can not carry out the continuous injection, also can not change the nozzle in addition, and then bring certain inconvenient problem for the user.

In order to achieve the above object, the utility model provides a following technical scheme:

a novel charging type needle-free injection pushing device comprises a holding handle, wherein a pushing injection device is arranged on the holding handle, and a medicine injection device is arranged on the pushing injection device; the injection device comprises a fixed barrel arranged on the holding handle; the medicine injection device comprises a needle cylinder arranged at the front end part of the fixed cylinder.

As the utility model discloses a preferred, the inside of gripping handle is equipped with the recess, be equipped with the lithium cell mounting box in the recess, be equipped with rechargeable lithium cell in the lithium cell mounting box.

As the utility model discloses a preferred, still be equipped with the first radiating groove that a plurality of is linear equidistant range and is linked together with the external world on the cell wall of one side of recess, still be equipped with the arc wall that a plurality of is linear equidistant range on the gripping handle.

As the optimization of the utility model, two guide grooves which are opposite to each other and are arranged along the length direction of the fixed cylinder are arranged on the inner wall of the fixed cylinder, an injection mechanism is arranged in the fixed cylinder and comprises a micro motor arranged in the fixed cylinder, the tail end of the output shaft of the micro motor is tightly welded with a screw rod which is arranged in a horizontal shape, the screw rod faces one side of the needle cylinder, a guide pillar is arranged on the screw rod, a first threaded hole which is arranged along the length direction of the guide pillar and is communicated with the outside is arranged in the guide pillar, the screw rod passes through the first threaded hole and is in threaded connection with the first threaded hole, two guide plates which are symmetrical to each other are arranged on the guide pillar, the tail end of each guide plate is positioned in the guide groove and is in sliding connection with the guide groove, and the tail end of the guide pillar, which, the boosting piston is provided with a connecting rod which is horizontally arranged at the center of the side surface far away from the guide pillar, the tail end of the connecting rod is provided with a pushing piston, and the pushing piston is positioned in the needle cylinder and is in sliding connection with the needle cylinder.

As the utility model discloses a preferred, the back tip of solid fixed cylinder has the back lid through a plurality of fastening screw fixed mounting, unable adjustment base on the micro motor covers after through a plurality of fastening screw fixed mounting, still be equipped with a plurality of second radiating grooves that are linked together with the external world in the back lid.

As the utility model discloses a preferred, be equipped with on the cylinder rather than the medicine pipe that advances that communicates each other, it is equipped with the check valve that is used for the one-way inflow of liquid to the cylinder on advancing the medicine pipe, still be equipped with the first bayonet socket of two mutual symmetries on advancing the body of medicine pipe, it still is equipped with the medicine storage bottle on advancing the medicine pipe, be equipped with the screwed pipe on the medicine storage bottle, just right on the pipe wall of screwed pipe the position of first bayonet socket is equipped with first buckle, first buckle with the joint cooperation between the first bayonet socket.

As the optimization of the utility model, the front end part of the medicine inlet pipe is also integrally formed with a medicine outlet pipe, the end part pipe body of the needle cylinder close to the medicine outlet pipe is also provided with two symmetrical second bayonets, the pipe body of the medicine outlet pipe is provided with two symmetrical third bayonets, the medicine outlet pipe is provided with an injection nozzle, the inner wall of the injection nozzle is provided with a third buckle opposite to the third bayonets, the third buckle is in clamping fit with the third bayonets, the injection nozzle is provided with two symmetrical fourth bayonets, the injection nozzle is provided with a protective cylinder, the inner wall of the protective cylinder is provided with a fourth buckle opposite to the fourth bayonets, the fourth buckle is in clamping fit with the fourth bayonets, the front end part of the needle cylinder is also provided with a rubber protective cover for protecting the injection nozzle, the rubber protective cover is provided with a fixed pipe, the inner wall of the fixed pipe is provided with a second buckle opposite to the second bayonet, and the second buckle is in clamping fit with the second bayonet.

As the utility model discloses a preferred, still be equipped with two arc walls that are just to just being linked together with the external world each other on the inner wall of solid fixed cylinder, the arc wall is located the guide way with between the cylinder, be located two between the arc wall still be equipped with the location mounting groove on the inner wall of solid fixed cylinder, the location mounting groove with the arc wall is linked together and sets up with one heart, be equipped with two mutual symmetries about the connecting rod and the limiting plate that sets up along connecting rod length direction.

As the utility model discloses a preferred, it is equipped with the double-screw bolt still to overlap on the connecting rod, be equipped with in the double-screw bolt along double-screw bolt length direction setting and with the external through-hole that is linked together, the connecting rod passes the through-hole, just right on the pore wall of through-hole the position of limiting plate is equipped with the spout, the limiting plate is located in the spout and with sliding connection between the spout, it is equipped with the knob still to overlap on the double-screw bolt, be equipped with the second screw hole that is linked together with the external world in the knob, the double-screw bolt passes the second screw hole and with threaded connection between the second screw hole, the surface of knob be equipped with the sealed bed course of closely laminating of the inner wall of solid fixed cylinder, the toroidal surface intermediate position department of.

As the utility model discloses a preferred, still be equipped with the skid resistant course on the annular face of spacing snap ring.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a lithium battery mounting box who sets up installs corresponding chargeable lithium cell in lithium battery mounting box, makes the device from electrified source, facilitates the use.

2. The utility model discloses a push injection device who sets up utilizes micro motor work to drive and pushes the piston and move forward or backward, accomplishes the process of the imbibition that corresponds and injection liquid medicine, convenient operation, and can reach the effect of connecting the injection through micro motor work, is convenient for inject the operation.

3. The utility model discloses an injection shower nozzle and a protection section of thick bamboo that set up, and a protection section of thick bamboo and go out threaded connection between the pencil, the convenience is dismantled injection shower nozzle and a protection section of thick bamboo, changes injection shower nozzle.

4. The utility model discloses a knob and the double-screw bolt that set up adjust the position of double-screw bolt through rotating the knob, further realize adjusting the single and inject the distance that the piston moved forward, reach the effect of controlling the injection volume.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is an enlarged view of the point A in FIG. 2 according to the present invention;

FIG. 4 is a schematic structural view of the grip handle of the present invention;

fig. 5 is a schematic structural view of the injection device of the present invention;

fig. 6 is an exploded view of the injection mechanism of the present invention;

fig. 7 is a cross-sectional view of the fixing cylinder with the guide groove of the present invention;

fig. 8 is a schematic structural view of the injection nozzle of the present invention;

fig. 9 is a sectional view of the protection cylinder of the present invention;

fig. 10 is a cross-sectional view of the threaded pipe of the present invention;

fig. 11 is a cross-sectional view of an injection nozzle of the present invention;

fig. 12 is a cross-sectional view of the rubber boot and the fixed tube of the present invention;

FIG. 13 is a schematic structural view of the present invention with an arc-shaped groove;

FIG. 14 is a cross-sectional view of the fixing cylinder with the arc-shaped groove and the positioning installation groove of the present invention;

fig. 15 is a schematic structural view of the present invention with a limiting plate, a stud and a knob;

fig. 16 is a schematic structural view of the limiting plate of the present invention;

fig. 17 is a schematic structural view of the stud of the present invention.

The meaning of the individual reference symbols in the figures is:

1. a grip handle; 10. a groove; 11. a lithium battery mounting box; 12. a first heat sink; 13. an arc-shaped slot; 14. a switch;

2. a bolus injection device; 20. a fixed cylinder; 201. a guide groove; 21. an injection mechanism; 211. a micro motor; 212. a screw rod; 213. a guide post; 2131. a first threaded hole; 214. a guide plate; 215. a boost piston; 216. a connecting rod; 217. pushing a piston; 22. a rear cover; 221. a second heat sink;

3. a drug injection device; 30. a needle cylinder; 31. a medicine inlet pipe; 311. a one-way valve; 32. a medicine storage bottle; 321. a threaded pipe; 33. A medicine outlet pipe; 34. an injection nozzle; 35. a protective cylinder; 36. a rubber boot; 37. a fixed tube;

4. arc-shaped grooving; 40. positioning the mounting groove;

5. a limiting plate;

6. a stud; 60. a through hole; 61. a chute;

7. a knob; 70. a second threaded hole; 71. sealing the cushion layer; 72. a limit snap ring; 721. an anti-slip layer;

8. a first bayonet; 80. a second bayonet; 81. a third bayonet; 82. a fourth bayonet;

9. a first buckle; 90. a second buckle; 91. a third buckle; 92. and a fourth buckle.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-17, the present invention provides a technical solution:

a novel charging type needleless injection pushing device comprises a holding handle 1, wherein a groove 10 communicated with the outside is formed in the holding handle 1, a lithium battery mounting box 11 is arranged in the groove 10, and a rechargeable lithium battery is arranged in the lithium battery mounting box 11, so that the device is provided with a power supply and is convenient to use; a plurality of first heat dissipation grooves 12 which are linearly arranged at equal intervals and communicated with the outside are also formed in the groove wall on one side of the groove 10, so that heat generated by the lithium battery can be timely discharged from the first heat dissipation grooves 12 when the lithium battery works; the gripping handle 1 is also provided with a plurality of arc-shaped grooves 13 which are linearly arranged at equal intervals, so that the operator can hold the gripping handle 1 more smoothly;

the injection device 2 is arranged on the holding handle 1, the injection device 2 comprises a fixed cylinder 20 arranged on the holding handle 1, two guide grooves 201 which are opposite to each other and are arranged along the length direction of the fixed cylinder 20 are arranged on the inner wall of the fixed cylinder 20, an injection mechanism 21 is arranged in the fixed cylinder 20, the injection mechanism 21 comprises a micro motor 211 arranged in the fixed cylinder 20, a lead screw 212 which is arranged in a horizontal shape is tightly welded at the tail end of an output shaft of the micro motor 211, the lead screw 212 faces one side of the needle cylinder 30, a guide pillar 213 is arranged on the lead screw 212, a first threaded hole 2131 which is arranged along the length direction of the guide pillar 213 and is communicated with the outside is arranged in the guide pillar 213, the lead screw 212 penetrates through the first threaded hole 2131 and is in threaded connection with the first threaded hole 2131, two guide plates 214 which are symmetrical to each other are arranged on the guide pillar 213, the guide post 213 can be driven to move forwards or backwards when the screw rod 212 rotates forwards or backwards;

the guide pillar 213 is kept away from on the terminal cylinder of micro motor 211 integrated into one piece has boosting piston 215, boosting piston 215 is located solid fixed cylinder 20, boosting piston 215 is kept away from the side central point department integrated into one piece of guide pillar 213 and is the connecting rod 216 that the level form set up, the terminal integrated into one piece of connecting rod 216 has injection piston 217, injection piston 217 is located the cylinder 30 and with cylinder 30 between sliding connection, guarantee when pulling backward injection piston 217, can inhale the liquid medicine in the cylinder 30, when pushing forward injection piston 217, can realize giving the liquid medicine in the cylinder 30 and extrude.

In this embodiment, the rear end of the fixed cylinder 20 is fixedly provided with the rear cover 22 through a plurality of fastening screws, the rear cover 22 and the fixed cylinder 20 are both provided with threaded holes communicated with the outside, and the rear cover 22 is fixedly arranged on the fixed cylinder 20 through the fastening screws, so that the installation is convenient; the fixing base on the micro motor 211 is fixedly arranged on the rear cover 22 through a plurality of fastening screws, a plurality of threaded holes communicated with the outside are formed in the fixing base on the micro motor 211 and the rear cover 22, and the fixing base on the micro motor 211 is fixedly arranged on the rear cover 22 through the fastening screws, so that the mounting is convenient, and the dismounting is convenient; the rear cover 22 is further provided with a plurality of second heat dissipation grooves 221 communicated with the outside, the second heat dissipation grooves 221 are also communicated with the fixed cylinder 20, and therefore heat in the fixed cylinder 20 can be timely discharged outwards through the second heat dissipation grooves 221.

In this embodiment, the injection device 2 is provided with the drug injection device 3, the drug injection device 3 includes a needle cylinder 30 arranged at the front end of the fixed cylinder 20, the needle cylinder 30 is provided with a drug inlet tube 31 communicated with the needle cylinder 30, the drug inlet tube 31 is provided with a one-way valve 311 for one-way inflow of liquid into the needle cylinder 30, so as to ensure that the liquid drug can only enter the needle cylinder 30 along the drug inlet tube 31 in one way; the medicine inlet pipe 31 is also provided with two first bayonets 8 which are symmetrical to each other, the medicine inlet pipe 31 is also provided with a medicine storage bottle 32, the medicine storage bottle 32 is integrally formed with a threaded pipe 321, the pipe wall of the threaded pipe 321 is provided with a first buckle 9 at a position opposite to the first bayonets 8, and the first buckle 9 is clamped and matched with the first bayonets 8, so that the medicine inlet pipe is convenient to mount and dismount; the front end part of the medicine inlet pipe 31 is also integrally formed with a medicine outlet pipe 33, the end part pipe body of the needle cylinder 30 close to the medicine outlet pipe 33 is also provided with two second bayonets 80 which are symmetrical with each other, the pipe body of the medicine outlet pipe 33 is provided with two third bayonets 81 which are symmetrical with each other, the medicine outlet pipe 33 is provided with an injection nozzle 34, the inner wall of the injection nozzle 34 is provided with a third buckle 91 at the position right opposite to the third bayonets 81, the third buckle 91 is in clamping fit with the third bayonets 81, the injection nozzle 34 is provided with two fourth bayonets 82 which are symmetrical with each other, the injection nozzle 34 is provided with a protective cylinder 35, the inner wall of the protective cylinder 35 is provided with a fourth buckle 92 at the position right opposite to the fourth bayonets 82, the fourth buckle 92 is in clamping fit with the fourth bayonets 82, the front end part of the needle cylinder 30 is also provided with a rubber protective, a second buckle 90 is arranged on the inner wall of the fixed tube 37 at a position opposite to the second bayonet 80, the second buckle 90 is in clamping fit with the second bayonet 80, the injection nozzle 34 and the protective barrel 35 are convenient to detach and replace, and meanwhile, the injection nozzle 34 is communicated with the outside, so that the liquid medicine in the injection nozzle 34 can be smoothly sprayed out;

in this embodiment, first bayonet socket 8, second bayonet socket 80, third bayonet socket 81 and fourth bayonet socket 82 are the arc wall structure, first buckle 9, second buckle 90, third buckle 91 and fourth buckle 92 are the arc fixture block structure, and first buckle 9, second buckle 90, third buckle 91 and fourth buckle 92 all adopt rubber materials to make, rubber materials has better elasticity, guarantee that it is when receiving the effect of external force, it can be further out of shape by the extrusion, guarantee that the buckle that corresponds can block smoothly in the bayonet socket that corresponds, and back in the bayonet socket that corresponds is blocked to the buckle card that corresponds, closely laminate between the pipe wall of medicine inlet pipe 31 and screwed pipe 321, closely laminate between the inner wall of medicine outlet pipe 33 and injection nozzle 34, guarantee that its leakproofness is better.

Furthermore, the rubber protective cover 36 is made of soft rubber material, so that the rubber protective cover 36 can be better attached to the skin of a human body when in use.

Specifically, the fixed cylinder 20, the syringe 30 and the medicine inlet tube 31 are of an integrally formed structure, so that the structure is firmer and more stable.

Furthermore, the inner wall of the fixed cylinder 20 is also provided with two arc-shaped slots 4 which are opposite to each other and communicated with the outside, the width of each arc-shaped slot 4 is equal to that of a normal adult thumb, and a worker can ensure that the thumb can properly penetrate through the arc-shaped slots 4 when the device is used;

the arc-shaped open slot 4 is positioned between the guide slot 201 and the needle cylinder 30, the inner wall of the fixed cylinder 20 positioned between the two arc-shaped open slots 4 is also provided with a positioning installation slot 40, the positioning installation slot 40 is communicated with the arc-shaped open slot 4 and concentrically arranged, the connecting rod 216 is integrally formed with an upper limiting plate 5 and a lower limiting plate 5 which are mutually symmetrical and are arranged along the length direction of the connecting rod 216, the connecting rod 216 is also sleeved with a stud 6, a through hole 60 which is arranged along the length direction of the stud 6 and communicated with the outside is arranged in the stud 6, the connecting rod 216 passes through the through hole 60, a sliding groove 61 is arranged on the hole wall of the through hole 60 and is opposite to the position of the limiting plate 5, the limiting plate 5 is positioned in the sliding groove 61 and is in sliding connection with the sliding groove 61, the stud 6 is also sleeved with a knob 7, the middle position of the annular surface of the knob 7 is also integrally formed with a limiting snap ring 72, the limiting snap ring 72 is positioned in the positioning installation groove 40, the size of the limiting snap ring 72 is matched with the size of the positioning installation groove 40, the limiting snap ring 72 can be stably installed in the positioning installation groove 40, meanwhile, the limiting snap ring 72 can rotate in the positioning installation groove 40, the knob 7 can be further ensured to rotate, the length of the knob 7 is smaller than that of the stud 6, the knob 7 can be rotated by using a thumb, the knob 7 can only rotate but cannot move due to the limiting snap ring 72 playing a limiting role in the knob 7, the stud 6 can be driven to move forwards or backwards when the knob 7 rotates, at the moment, the distance between the end part of the stud 6 and the boosting piston 215 is changed, the distance from the boosting piston 215 to the end part of the stud 6 is adjusted, and finally the movement distance of the boosting piston 215 is adjusted, the adjustment of the single injection dose is realized.

Further, the surface of the knob 7 is provided with a sealing cushion layer 71 tightly attached to the inner wall of the fixed cylinder 20, so that the sealing performance between the knob 7 and the inner wall of the fixed cylinder 20 is ensured to be good, the fixed cylinder 20 and the knob 7 are made of transparent materials, and the specific position of the stud 6 in the fixed cylinder 20 can be observed by a worker.

In addition, the annular surface of the limiting snap ring 72 is also provided with an anti-slip layer 721 to increase the friction force between the limiting snap ring 72 and the thumb, so that the limiting snap ring 72 can be rotated more smoothly.

It is worth to be noted that the micro motor 211 can be an LCDA4-04B202-LB632 series servo motor produced by shenzhen, a new automation technology, and the matching circuit and power supply thereof are also provided by the manufacturer; furthermore, the utility model discloses in relate to circuit and electronic components and module be prior art, the technical staff in the field can realize completely, no longer gives unnecessary details here, the utility model discloses the content of protection also does not relate to the improvement to software and method.

It is worth noting that, the micro motor 211 adopts an LCDA4-04B202-LB632 series servo motor produced by new automation science and technology limited in shenzhen, and a servo system matched with the micro motor is provided by the manufacturer, so that the rotating speed of the micro motor 211 can be adjusted to adjust the forward moving speed of the bolus injection piston 217, and the effect of adjusting the injection thrust is further achieved.

In this embodiment, the lithium battery in the lithium battery mounting box 11 can be a PL103048 series lithium battery produced by new navigation technologies ltd, shenzhen, and its matching circuit and power supply are also provided by the manufacturer; furthermore, the utility model discloses in relate to circuit and electronic components and module be prior art, the technical staff in the field can realize completely, no longer gives unnecessary details here, the utility model discloses the content of protection also does not relate to the improvement to software and method.

In this embodiment, the grip handle 1 is further provided with a switch 14, the micro motor 211, the lithium battery mounting box 11 and the switch 14 arranged on the grip handle 1 are electrically connected through a conducting wire in sequence, and after the switch 14 is closed, a complete closed loop is formed among the micro motor 211, the switch 14 and the lithium battery in the lithium battery mounting box 11, so that the effect of controlling the work of the micro motor 211 by closing the switch 14 is ensured.

Before the novel charging type needle-free injection pushing device of the utility model is used, the first buckle 9 on the medicine storage bottle 32 containing the liquid medicine is clamped into the first bayonet 8 on the medicine inlet pipe 31 to complete the installation of the medicine storage bottle 32 and the medicine inlet pipe 31, the proper injection nozzle 34 is selected, the third buckle 91 on the injection nozzle 34 is clamped into the third bayonet 81 on the medicine outlet pipe 33 to complete the installation of the injection nozzle 34 and the medicine outlet pipe 33, then closing the switch 14 causes the micro motor 211 to turn on the power source of the lithium battery in the lithium battery mounting box 11 and operate, the output shaft thereon rotates reversely to drive the screw rod 212 to rotate reversely, further driving the guide post 213 to move toward the micro motor 211, at this time, the corresponding boosting piston 215, the connecting rod 216 and the injection piston 217 move backwards to realize that the liquid medicine in the medicine storage bottle 32 is sucked into the needle cylinder 30 to complete the preparation work;

when the device is used, the rubber protective cover 36 is abutted against the skin of a patient, the knob 7 is rotated to drive the stud 6 to move forwards or backwards, at the moment, the distance between the end part of the stud 6 and the boosting piston 215 is changed, the distance from the boosting piston 215 to the end part of the stud 6 is adjusted, after the stud 6 is adjusted to a proper position, the switch 14 is continuously closed to enable the micro motor 211 to work, when the output shaft on the micro motor rotates forwards, the lead screw 212 is driven to rotate forwards, the guide post 213 is further driven to move towards the direction of the injection nozzle 34, at the moment, the corresponding boosting piston 215, the connecting rod 216 and the injection piston 217 move forwards, the liquid medicine in the needle cylinder 30 is extruded from the injection nozzle 34 at high speed, the injection of the patient is realized, after the injection is finished, the medicine is added, the injection operation steps are repeated, and the effect of continuous injection can be realized, solves the problems that most needleless injectors cannot carry out continuous injection and can not replace nozzles, thereby bringing certain inconvenience to users.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a novel rechargeable needleless injection thrust unit, includes grip handle (1), its characterized in that: the holding handle (1) is provided with a pushing injection device (2), and the pushing injection device (2) is provided with a medicine injection device (3); the injection device (2) comprises a fixed cylinder (20) arranged on the holding handle (1); the medicine injection device (3) comprises a needle cylinder (30) arranged at the front end part of the fixed cylinder (20); a groove (10) is formed in the holding handle (1), a lithium battery mounting box (11) is arranged in the groove (10), and a rechargeable lithium battery is arranged in the lithium battery mounting box (11); a plurality of first heat dissipation grooves (12) which are linearly arranged at equal intervals and communicated with the outside are further formed in the groove wall on one side of the groove (10), and a plurality of arc-shaped grooves (13) which are linearly arranged at equal intervals are further formed in the holding handle (1); the inner wall of the fixed cylinder (20) is provided with two guide grooves (201) which are opposite to each other and are arranged along the length direction of the fixed cylinder (20), an injection mechanism (21) is arranged in the fixed cylinder (20), the injection mechanism (21) comprises a micro motor (211) arranged in the fixed cylinder (20), the tail end of an output shaft of the micro motor (211) is tightly welded with a lead screw (212) which is arranged horizontally, the lead screw (212) faces one side of the needle cylinder (30), a guide post (213) is arranged on the lead screw (212), a first threaded hole (2131) which is arranged along the length direction of the guide post (213) and is communicated with the outside is arranged in the guide post (213), the lead screw (212) penetrates through the first threaded hole (2131) and is in threaded connection with the first threaded hole (2131), and two guide plates (214) which are symmetrical to each other are arranged on the guide post (213), the tail end of the guide plate (214) is positioned in the guide groove (201) and is in sliding connection with the guide groove (201), the tail end of the guide post (213) far away from the micro motor (211) is provided with a boosting piston (215), the center of the side surface of the boosting piston (215) far away from the guide post (213) is provided with a connecting rod (216) which is horizontally arranged, the tail end of the connecting rod (216) is provided with a push injection piston (217), and the push injection piston (217) is positioned in the needle cylinder (30) and is in sliding connection with the needle cylinder (30); the rear end of the fixed cylinder (20) is fixedly provided with a rear cover (22) through a plurality of fastening screws, a fixed base on the micro motor (211) is fixedly arranged on the rear cover (22) through a plurality of fastening screws, and a plurality of second heat dissipation grooves (221) communicated with the outside are further arranged in the rear cover (22).

2. The novel rechargeable needleless injection pushing device of claim 1, wherein: be equipped with on cylinder (30) rather than advancing pencil (31) that communicates each other, it is used for the one-way check valve (311) that flows into in cylinder (30) of liquid to be equipped with on pencil (31), still be equipped with first bayonet socket (8) of two mutual symmetries on advancing the body of pencil (31), it stores up medicine bottle (32) still to be equipped with on pencil (31) to advance, be equipped with screwed pipe (321) on storing up medicine bottle (32), just right on the pipe wall of screwed pipe (321) the position of first bayonet socket (8) is equipped with first buckle (9), first buckle (9) with the joint cooperation between first bayonet socket (8).

3. The novel rechargeable needleless injection pushing device of claim 2, wherein: the front end part of the medicine inlet pipe (31) is further integrally formed with a medicine outlet pipe (33), the front end part of the medicine inlet pipe (31) is close to the medicine outlet pipe (33), the end part pipe body of the needle cylinder (30) is further provided with two mutually symmetrical second bayonets (80), the pipe body of the medicine outlet pipe (33) is provided with two mutually symmetrical third bayonets (81), the medicine outlet pipe (33) is provided with an injection nozzle (34), the inner wall of the injection nozzle (34) is provided with a third buckle (91) right at the position of the third bayonets (81), the third buckle (91) is matched with the third bayonets (81) in a clamping manner, the injection nozzle (34) is provided with two mutually symmetrical fourth bayonets (82), the injection nozzle (34) is provided with a protection cylinder (35), the inner wall of the protection cylinder (35) is provided with a fourth buckle (92) right at the position of the fourth bayonets (82), the fourth buckle (92) is matched with the fourth bayonets (82) in, the front end of syringe (30) still is equipped with rubber safety cover (36) that are used for protecting injection nozzle (34) inside, be equipped with fixed pipe (37) on rubber safety cover (36), just be equipped with second buckle (90) to the position of second bayonet socket (80) on the inner wall of fixed pipe (37), second buckle (90) with the joint cooperation between second bayonet socket (80).

4. The novel rechargeable needleless injection pushing device of claim 1, wherein: still be equipped with two arc flutings (4) just and being linked together with the external world each other on the inner wall of solid fixed cylinder (20), arc fluting (4) is located guide way (201) with between cylinder (30), be located two between arc fluting (4) still be equipped with location mounting groove (40) on the inner wall of solid fixed cylinder (20), location mounting groove (40) with arc fluting (4) is linked together and sets up with one heart, be equipped with limiting plate (5) that two mutual symmetries about and set up along connecting rod (216) length direction on connecting rod (216).

5. The novel rechargeable needleless injection pushing device of claim 4, wherein: still the cover is equipped with double-screw bolt (6) on connecting rod (216), be equipped with in double-screw bolt (6) along double-screw bolt (6) length direction setting and with external through-hole (60) that are linked together, connecting rod (216) pass through-hole (60), just right on the pore wall of through-hole (60) the position of limiting plate (5) is equipped with spout (61), limiting plate (5) be located in spout (61) and with sliding connection between spout (61), still the cover is equipped with knob (7) on double-screw bolt (6), be equipped with second screw hole (70) that are linked together with the external in knob (7), double-screw bolt (6) pass second screw hole (70) and with threaded connection between second screw hole (70), the surface of knob (7) be equipped with seal cushion layer (71) that the inner wall of solid fixed cylinder (20) closely laminated, the middle position of the annular surface of the knob (7) is further provided with a limiting clamping ring (72), and the limiting clamping ring (72) is located in the positioning installation groove (40).

6. The novel rechargeable needleless injection pushing device of claim 5, wherein: and an anti-slip layer (721) is also arranged on the annular surface of the limiting snap ring (72).

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