CN213554484U

CN213554484U - Button assembly of needleless injector

Info

Publication number: CN213554484U
Application number: CN202021952285.6U
Authority: CN
Inventors: 杨东平
Original assignee: Jilin Bonneville Medical Instrument Co ltd
Current assignee: Jilin Bonneville Medical Instrument Co ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-06-29
Anticipated expiration: 2030-09-09

Abstract

The utility model discloses a needleless injector button assembly, the cartridge is arranged at one end of the interior of the front shell, the rear shell is connected at the other end of the front shell, the rear shell comprises a rear body, a locking key, a locking block, rear flexible glue, a button cushion block, a button spring, a button front body, balls, a rear insert and a transmission rod, the rear body is arranged in the interior of the rear shell, and the locking key is arranged in the interior of the rear shell and at the tail end of the rear body; the utility model discloses the processing equipment degree of difficulty coefficient of the device is low, is convenient for break-apart, the equipment of being convenient for, and then the processing of each subassembly of being convenient for, has both guaranteed the functionality from this and has ensured that processing technology easily realizes when the productization, has realized controllable manufacturing cost, and whole process all need not to take out the pencil also need not the separation, promotes the medicine efficiency of inhaling forward inhaling at the medicine in-process button of inhaling, and this operation flow can be accomplished high-efficiently, laborsavingly.

Description

Button assembly of needleless injector

Technical Field

The utility model relates to a needleless injector technical field specifically is a needleless injector button subassembly.

Background

The needleless injector does not use a needle head when injecting the medicine, and forms a thin liquid flow by using a high-pressure jet principle so as to instantly penetrate the skin to reach the subcutaneous part. Because of the change of the injection principle, the liquid medicine is dispersed and distributed under the skin, the onset time is faster, and the medicine absorption rate is higher.

The button of the existing needleless injector has large resistance when being pressed, is labor-consuming and is difficult to operate, and therefore, a button assembly of the needleless injector is provided.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a button assembly for a needleless injector to solve the above-mentioned problems of the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a button assembly of a needleless injector comprises a front shell, a rear shell and a medicine tube, wherein the medicine tube is arranged at one end in the front shell, the rear shell is connected with the other end of the front shell, the rear shell comprises a rear body, a locking key, a locking block, rear soft rubber, a button cushion block, a button spring, a button front body, a ball, a rear insert and a transmission rod, the rear body is positioned in the rear shell, the locking key is arranged in the rear shell and positioned at the tail end of the rear body, the locking block is connected at one end of the locking key, the rear soft rubber is positioned outside the rear shell, the button cushion block is positioned in the button and positioned in the rear shell, the button spring is positioned at one side of the button cushion block, the button front body is connected at one end of the button spring, and the ball is arranged at one end of the button front body, the transmission rod is connected to one end of the ball, and one end of the inner side of the rear end body is connected to the transmission rod.

As a further optimization of the technical scheme, the surface of the button spring is sprayed with an antirust coating.

As a further optimization of the technical scheme, the balls are medical stainless steel balls, and the number of the balls is six.

As a further optimization of the technical scheme, the transmission rod is a stainless steel transmission rod.

As a further optimization of the technical scheme, the outer circle of the front shell is respectively provided with a front left soft rubber, a middle right soft rubber and a front right soft rubber.

As further optimization of the technical scheme, the button is a medical PP button.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses the processing equipment degree of difficulty coefficient of device is low, be convenient for the partition, be convenient for assemble, and then the processing of each subassembly of being convenient for, both guaranteed the functionality from this and ensured that processing technology easily realizes when the commercialization, controllable manufacturing cost has been realized, and whole process all need not to take out the pencil and also need not the separation, it promotes the medicine efficiency of inhaling to inhale medicine in-process button forward, this operation flow can be high-efficient, accomplish laborsavingly, through the locking key, the lock block, the rear end flexible glue, the button cushion, the button spring, body before the button, the ball, the rear portion mold insert, the piston that the transfer line mutually supported transmission promotion is located the front portion casing removes, high efficiency, the resistance is little when pressing.

Drawings

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

FIG. 2 is a schematic view of the external structure of the present invention;

fig. 3 is a schematic structural diagram of the inside of the rear housing of the present invention.

In the figure: 3. a medicine tube; 8. a front housing; 17. a rear end body; 18. a locking key; 19. a locking block; 20. a rear housing; 21. back end soft glue; 22. a button cushion block; 23. a button; 24. a button spring; 25. a button front body; 26. a ball bearing; 27. a rear insert; 28. a transmission rod; 42. front left soft rubber; 43. middle left soft rubber; 44. the right soft rubber at the middle part; 46. the right soft rubber at the front part.

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, unless otherwise specified, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", and the like, indicate orientations or state relationships based on the orientations or state relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that a designated mechanism or component must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a button assembly of a needleless injector comprises a front shell 8, a rear shell 20 and a medicine tube 3, wherein the medicine tube 3 is arranged at one end inside the front shell 8, the rear shell 20 is connected with the other end of the front shell 8, the rear shell 20 comprises a rear end body 17, a locking key 18, a locking block 19, rear soft rubber 21, a button cushion block 22, a button 23, a button spring 24, a button front body 25, a ball 26, a rear insert 27 and a transmission rod 28, the rear end body 17 is positioned inside the rear shell 20, the locking key 18 is arranged inside the rear shell 20 and positioned at the tail end of the rear end body 17, the locking block 19 is connected at one end of the locking key 18, the rear soft rubber 21 is positioned outside the rear shell 20, the button cushion block 22 is positioned in the button 23 and positioned in the rear shell 20, the button spring 24 is positioned at one side of the button cushion block 22, the button front body 25 is connected to one end of the button spring 24, the ball 26 is disposed at one end of the button front body 25, the transmission rod 28 is connected to one end of the ball 26, and one end of the inner side of the rear body 17.

Specifically, the button spring 24 is coated with an antirust coating. Specifically, the balls 26 are medical stainless steel balls, and the number of the balls 26 is six. Specifically, the transmission rod 28 is a stainless steel transmission rod. Specifically, a circle of the outer part of the front shell 8 is respectively provided with a front left soft rubber 42, a middle left soft rubber 43, a middle right soft rubber 44 and a front right soft rubber 45. Specifically, the button 23 is a medical PP button.

This device's processing equipment difficulty coefficient is low, be convenient for the partition, be convenient for the equipment, and then be convenient for the processing of each subassembly, from this both guaranteed the functionality and ensured that processing technology easily realizes when productization, controllable manufacturing cost has been realized, and whole process all need not to take out pencil 3 and also need not the separation, in inhaling medicine in-process button 23 promotes forward and inhales medicine efficiency, this operation flow can be high-efficient, accomplish laborsavingly, through locking key 18, locking piece 19, rear end flexible glue 21, button cushion 22, button 23, button spring 24, body 25 before the button, ball 26, rear portion mold insert 27, the piston that transfer line 28 mutually supported the transmission and promotes to be located anterior casing 8 removes, and is efficient.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A needleless injector button assembly comprising a front housing (8), a rear housing (20), a cartridge (3), characterized in that: the medicine tube (3) is arranged at one end of the inner part of the front shell (8), the rear shell (20) is connected with the other end of the front shell (8), the rear shell (20) comprises a rear end body (17), a locking key (18), a locking block (19), rear soft rubber (21), a button cushion block (22), a button (23), a button spring (24), a button front body (25), a ball (26), a rear insert (27) and a transmission rod (28), the rear end body (17) is positioned in the rear shell (20), the locking key (18) is arranged in the rear shell (20) and positioned at the tail end of the rear end body (17), the locking block (19) is connected with one end of the locking key (18), the rear soft rubber (21) is positioned outside the rear shell (20), the button cushion block (22) is positioned in the button (23) and positioned in the rear shell (20), the button spring (24) is located one side of the button cushion block (22), the button front body (25) is connected to one end of the button spring (24), the ball (26) is arranged at one end of the button front body (25), the transmission rod (28) is connected to one end of the ball (26), and one end of the inner side of the rear end body (17) is connected to the inner side of the button front body (25).

2. The needle free injector button assembly of claim 1, wherein: and an antirust coating is sprayed on the surface of the button spring (24).

3. The needle free injector button assembly of claim 1, wherein: the balls (26) are medical stainless steel balls, and the number of the balls (26) is six.

4. The needle free injector button assembly of claim 1, wherein: the transmission rod (28) is a stainless steel transmission rod.

5. The needle free injector button assembly of claim 1, wherein: the outer circle of the front shell (8) is respectively provided with a front left soft rubber (42), a middle left soft rubber (43), a middle right soft rubber (44) and a front right soft rubber (45).

6. The needle free injector button assembly of claim 1, wherein: the button (23) is a medical PP button.