CN-121990404-A - Rotary travel compensation mechanism and dispenser

CN121990404ACN 121990404 ACN121990404 ACN 121990404ACN-121990404-A

Abstract

The application provides a rotary stroke compensation mechanism and a medicine feeding dispenser, wherein the rotary stroke compensation mechanism comprises a driving rotating member, a driven rotating member and a damping assembly, wherein the driving rotating member is used for being connected with a driving assembly and rotating under the action of the driving assembly, the driven rotating member is rotationally connected with the driving rotating member and used for winding an object to be wound, the damping assembly is arranged between the driving rotating member and the driven rotating member and used for generating torque between the driving rotating member and the driven rotating member so that the driving rotating member applies driving torque to the driven rotating member through the damping assembly, the driving torque is not greater than a preset threshold value, and the preset threshold value is the driving torque when the driving rotating member and the driven rotating member relatively rotate. The rotary stroke compensation mechanism can play a role in stroke compensation, and fool-proof design is not needed.

Inventors

ZHANG XIEEN
OUYANG GUANGLIN
LI LEI
ZOU YUJIE
LIU YONGWEI

Assignees

传思生物公司

Dates

Publication Date: 20260508
Application Date: 20221209

Claims (15)

1. A rotational travel compensation mechanism, comprising: The driving rotating piece is used for connecting with the driving assembly and rotating under the action of the driving assembly; the driven rotating piece is rotationally connected with the driving rotating piece and is used for winding an object to be wound; a damping assembly disposed between the driving rotator and the driven rotator such that the driving rotator applies a driving torque to the driven rotator through the damping assembly; The driving torque is not larger than a preset threshold, and the preset threshold is the driving torque generated by the driving rotating piece and the driven rotating piece during relative rotation.
2. The rotational travel compensation mechanism of claim 1, wherein the driving rotation member rotates clockwise and counter-clockwise to apply the same driving torque to the driven rotation member.
3. The rotary motion compensation mechanism of claim 1 wherein the damping assembly does not include an elastic damping member made of a rigid material.
4. The rotary motion compensation mechanism according to claim 1, wherein, The damping assembly includes one or more of an elastomeric damping member, a viscous grease damping member, and a magnetic damping member.
5. The rotary motion compensation mechanism according to claim 4, wherein, The driving rotating piece comprises a rotating shaft and a base plate, the rotating shaft is vertically connected to one side surface of the base plate, the driven rotating piece comprises a hollow columnar body with an opening and is sleeved on the rotating shaft, and the damping component is arranged between the base plate and the end face of the hollow columnar body and/or between the outer surface of the rotating shaft and the inner surface of the hollow columnar body.
6. The rotary motion compensation mechanism according to claim 5, wherein, The damping component comprises a first elastic material damping piece, wherein the first elastic material damping piece is arranged between the base plate and the end face of the hollow columnar body and/or between the outer surface of the rotating shaft and the inner surface of the hollow columnar body; and the first elastic material damping piece is in a closed ring shape.
7. The rotary motion compensation mechanism according to claim 6, wherein, The damping component also comprises at least one second elastic material damping piece which is arranged at intervals, wherein the at least one second elastic material damping piece is arranged between the base plate and the end face of the hollow columnar body and is positioned at one side of the first elastic material damping piece close to the rotating shaft, and/or, The at least one second elastic material damping piece is arranged between the outer surface of the rotating shaft and the inner surface of the hollow columnar body and is positioned on one side, close to the base plate, of the first elastic material damping piece.
8. The rotary motion compensation mechanism according to claim 7, wherein, The at least one second elastic material damping piece is in a closed loop shape, and the first elastic material damping piece and the at least one second elastic material damping piece are coaxially sleeved; or the at least one second elastic material damping piece is sheet-shaped, is arranged at intervals along the circumferential direction of the rotating shaft and forms at least one ring shape, and the first elastic material damping piece and at least one ring shape are coaxially sleeved.
9. The rotary motion compensation mechanism of claim 8, wherein, The first elastomeric dampener produces less torque between the driving and driven rotation members than the at least one second elastomeric dampener produces between the driving and driven rotation members.
10. The rotary motion compensation mechanism of claim 9, wherein, The number of the second elastic material damping pieces is multiple, and the torque generated between the driving rotating piece and the driven rotating piece by the second elastic material damping pieces is gradually increased along the direction close to the rotating shaft.
11. The rotary motion compensation mechanism according to any one of claims 6 to 10, wherein, The damping component comprises an elastic material damping piece, a first clamping groove is formed in the surface of one side, facing the driven rotating piece, of the driving rotating piece, and/or a second clamping groove is formed in the surface of one side, facing the driving rotating piece, of the driven rotating piece; Part of the elastic material damping piece is elastically compressed in the first clamping groove and is abutted against the bottom wall of the first clamping groove; and/or part of the elastic material damping piece is elastically compressed in the second clamping groove and is abutted against the bottom wall of the second clamping groove, and the driven rotating piece is attached to the surface of the driving rotating piece.
12. The rotary motion compensation mechanism according to claim 5, wherein, The damping component comprises the viscous grease damping piece, wherein the viscous grease damping piece comprises an annular viscous grease damping piece arranged between the base plate and the end face of the hollow columnar body, and/or the viscous grease damping piece comprises a hollow columnar viscous grease damping piece arranged between the outer surface of the rotating shaft and the inner surface of the hollow columnar body.
13. The rotary motion compensation mechanism of claim 12, wherein, The first sealing piece and the second sealing piece are clamped between the driving rotating piece and the driven rotating piece; Wherein the viscous grease damping member comprises an annular viscous grease damping member arranged between the base plate and the end face of the hollow columnar body, the first sealing member and the second sealing member are respectively arranged at the outer side and the inner side of the annular viscous grease damping member, and/or The viscous grease damping piece comprises a hollow columnar viscous grease damping piece arranged between the outer surface of the rotating shaft and the inner surface of the hollow columnar body, and the first sealing piece and the second sealing piece are respectively arranged at two opposite ends of the hollow columnar viscous grease damping piece.
14. The rotary motion compensation mechanism according to claim 4, wherein, The damping assembly comprises a magnetic damping assembly, wherein the magnetic damping assembly comprises a first magnetic piece and a second magnetic piece which are oppositely arranged, one of the first magnetic piece and the second magnetic piece is arranged on one side of the driven rotating piece, which faces the driving rotating piece, the other one of the first magnetic piece and the second magnetic piece is arranged on one side of the driving rotating piece, which faces the driven rotating piece, and the first magnetic piece and the second magnetic piece are attracted to each other through magnetism so as to generate torque between the first magnetic piece and the second magnetic piece.
15. A dispenser for dispensing a medicament, characterized in that, A rotary motion compensation mechanism according to any one of claims 1 to 14; And the driving assembly is connected with the driving rotating piece and used for driving the driving rotating piece to rotate.

Description

Rotary travel compensation mechanism and dispenser Technical Field The invention relates to the technical field of drug delivery devices, in particular to a rotary stroke compensation mechanism and a drug delivery dispenser. Background In a powder aerosol delivery system, the medicament in powder or tablet form of such devices is loaded onto an elongate paper strip, which is peeled back and delivered to the patient. The medicine strip is divided into a paper strip and a bubble cap strip after being stripped, and the stripped paper strip is wound on a winding wheel, so that a stroke compensation mechanism is involved. The conventional travel compensation mechanism of the paper tape in the powder aerosol administration system usually adopts a mode of an elastic blade wheel or a torsion spring compensation wheel, but the two mechanisms have some defects, for example, in the powder aerosol administration system with double medicine tapes, the rotation direction of the two paper tapes is opposite, and the two paper tapes cannot share the same travel compensation mechanism, so that foolproof design and the like are required to be carried out on the device. Disclosure of Invention The application provides a rotary stroke compensation mechanism and a medicine feeding dispenser, which mainly solve the technical problem that in a powder aerosol medicine feeding system with double medicine belts, the rotation directions of two paper belts are opposite, and the two paper belts cannot share the same stroke compensation mechanism, so that the foolproof design of the device is required. In order to solve the technical problems, the technical scheme adopted by the application is to provide a rotary stroke compensation mechanism which comprises a driving rotary piece, a driving component and a driving component, wherein the driving rotary piece is used for connecting with the driving component and rotates under the action of the driving component; the driven rotating piece is rotationally connected with the driving rotating piece and is used for winding an object to be wound; A damping assembly disposed between the driving rotation member and the driven rotation member for generating a torque between the driving rotation member and the driven rotation member such that the driving rotation member applies a driving torque to the driven rotation member through the damping assembly; The driving torque is not larger than a preset threshold, and the preset threshold is the driving torque generated by the driving rotating piece and the driven rotating piece during relative rotation. In one embodiment, the driving rotation member rotates clockwise and counter-clockwise to apply the same driving torque to the driven rotation member. In one embodiment, the damping assembly does not include an elastic damping member made of a rigid material. In one embodiment, the damping assembly includes one or more of an elastomeric damping member, a viscous grease damping member, and a magnetic damping member. In one embodiment, one of the driving rotary member and the driven rotary member has a shaft, and the other has an opening, into which the shaft is inserted. In an embodiment, the driving rotating member comprises a rotating shaft and a base plate, the rotating shaft is vertically connected to one side surface of the base plate, the driven rotating member comprises a hollow columnar body with an opening, the hollow columnar body is sleeved on the rotating shaft, and the damping component is arranged between the base plate and the end surface of the hollow columnar body and/or between the outer surface of the rotating shaft and the inner surface of the hollow columnar body. In one embodiment, the damping component comprises a first elastic material damping piece, wherein the first elastic material damping piece is arranged between the base plate and the end face of the hollow columnar body, and/or is arranged between the outer surface of the rotating shaft and the inner surface of the hollow columnar body, and the first elastic material damping piece is in a closed ring shape. In an embodiment, the damping assembly further comprises at least one second elastic material damping piece arranged at intervals, wherein the at least one second elastic material damping piece is arranged between the base plate and the end face of the hollow columnar body and is positioned at one side, close to the rotating shaft, of the first elastic material damping piece, and/or the at least one second elastic material damping piece is arranged between the outer surface of the rotating shaft and the inner surface of the hollow columnar body and is positioned at one side, close to the base plate, of the first elastic material damping piece. In an embodiment, the at least one second elastic material damping member is in a closed loop shape, and the first elastic material damping member and the at least one second elastic material damping member are coaxially sleeved;