CN111860750B

CN111860750B - Counting indicator for aerosol valve

Info

Publication number: CN111860750B
Application number: CN202010855183.0A
Authority: CN
Inventors: 吴刚; 胡晋
Original assignee: Aptar Suzhou Dispensing Systems Co Ltd
Current assignee: Aptar Suzhou Dispensing Systems Co Ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2022-06-21
Anticipated expiration: 2040-08-24
Also published as: CN111860750A

Abstract

The invention provides an aerosol valve counting indicator, which mainly comprises: the counting device comprises a push button, an actuating rod, a worm, a counting disc and an outer cover, wherein a sliding groove is formed in one outer side surface of the push button, the actuating rod is clamped in the sliding groove, the structure of the actuating rod is matched with the sliding groove, a cantilever which protrudes outwards is arranged on one side of the actuating rod and extends into the push button, an actuating claw which protrudes outwards is arranged on the other side of the actuating rod, the worm is arranged on the outer side of the actuating rod, a coaxial ratchet wheel is arranged at one end of the worm, the position of the ratchet wheel is matched with the actuating claw, the actuating claw is clamped between the ratchet wheels, two ends of the worm are clamped into a supporting seat, the supporting seat is fixed on the outer side wall of the push button, a sleeve is arranged on the outer side wall of the push button above the sliding groove, the counting disc is sleeved on the sleeve and correspondingly arranged above the worm, and counting teeth of the counting disc are meshed with the worm, the outer cover is arranged on the outer side of the counting disc.

Description

Counting indicator for aerosol valve

Technical Field

The invention relates to the field of medical products, in particular to an aerosol valve counting indicator.

Background

The aerosol is a common medical device, and can spray liquid in a container in a mist form by means of the pressure of a propellant, so that the aerosol is used for treating patients. The push button structure of the aerosol dispenser in the current market has relatively simple functions, does not have a counting function, and a user cannot know the use times of the device. The user cannot know the number of times the device has been used, the total number of times the device has been used and the remaining number of times the device has been used, and the device can still be used but discarded or emptied but still used.

Disclosure of Invention

In order to solve the problems, the invention provides an aerosol valve counting indicator which can solve the problem that the existing aerosol administration device cannot count.

The main content of the invention comprises: an aerosol valve count indicator consisting essentially of: the counting device comprises a push button, an actuating rod, a worm, a counting disc and an outer cover, wherein a sliding groove is formed in one outer side surface of the push button, the actuating rod is clamped in the sliding groove, the structure of the actuating rod is matched with the sliding groove, a cantilever which protrudes outwards is arranged on one side of the actuating rod and extends into the push button, an actuating claw which protrudes outwards is arranged on the other side of the actuating rod, the worm is arranged on the outer side of the actuating rod, a coaxial ratchet wheel is arranged at one end of the worm, the position of the ratchet wheel is matched with the actuating claw, the actuating claw is clamped between the ratchet wheels, two ends of the worm are clamped into a supporting seat, the supporting seat is fixed on the outer side wall of the push button, a sleeve is arranged on the outer side wall of the push button above the sliding groove, the counting disc is sleeved on the sleeve and correspondingly arranged above the worm, and counting teeth of the counting disc are meshed with the worm, the outer cover is arranged on the outer side of the counting disc.

Preferably, a return-preventing mechanism is provided at a side wall of the push button corresponding to the ratchet.

Preferably, the anti-return mechanism adopts anti-return teeth protruding towards the ratchet wheel side, and the outer end faces of the anti-return teeth are arranged in an inclined structure, so that the ratchet wheel can only rotate towards one direction.

Preferably, a protruding stop tooth is arranged at the side wall of the push button corresponding to the counting disc.

Preferably, a stop rib corresponding to the stop tooth in shape is arranged on one side surface of the counting disc corresponding to the stop tooth.

Preferably, a limit block is arranged at the side wall of the push button below the actuating rod.

Preferably, a reading or scale line is provided at the outer side of the counting disc.

Preferably, a window is arranged on the outer cover corresponding to the reading or scale mark of the counting disc.

Preferably, the lower end of the push button is further provided with an outer cover.

Preferably, a reset device is further arranged at the actuating rod.

The invention has the beneficial effects that: 1. the counting mechanism adopts a mechanical counting structure, can realize a counting function without electric drive, has a simple structure, is accurate in counting, is environment-friendly and can be recycled; 2. the anti-rotation structure is arranged, so that the reading of the counting disc is stably and reliably displayed; 3. the counting assembly is an injection molding piece, and is small in quantity, high in cost performance and light in weight.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a preferred embodiment of a counting indicator for an aerosol valve according to the present invention;

FIG. 2 is a schematic diagram illustrating an explosion of FIG. 1;

FIG. 3 is a schematic view of the counting disc;

FIG. 4 is a schematic view of an assembly structure of the present invention;

FIG. 5 is a schematic view of an assembly structure according to another aspect of the present invention;

reference numerals: 1. a push button 11, a sliding chute 12, a rotation-preventing tooth 13, a stop tooth 14, a supporting seat 15 and a sleeve,

16. the limiting block 2, the actuating rod 21, the cantilever 22, the actuating claw 23, the support leg 3, the worm 31, the ratchet wheel 4, the counting disc 41, the stop rib 5, the outer cover 51, the window 6 and the outer cover

Detailed Description

The technical scheme protected by the invention is specifically explained in the following by combining the attached drawings.

As shown in fig. 1, 2 and 4, an aerosol valve counting indicator according to embodiment 1 of the present invention mainly includes: the counting device comprises a push button 1, an actuating rod 2, a worm 3, a counting disc 4 and an outer cover 5, wherein a sliding groove 11 is formed in one outer side surface of the push button 1, the actuating rod 2 is clamped in the sliding groove 11, the structure of the actuating rod 2 is matched with that of the sliding groove 11, one side of the actuating rod 2 is provided with a cantilever 21 protruding outwards, as shown in fig. 5, the cantilever 21 extends into the push button, and when an object extends into the push button 1 and is pressed, the cantilever 21 can move downwards. The utility model discloses a counting device, including actuating rod 2, actuating rod 22, actuating pawl 22, supporting seat 14, spout 11, sleeve 15, counting dish 4 is corresponding to be set up above worm 3, and the counting tooth of counting dish 4 meshes with worm 3 mutually, and when worm 3 rotated, drives counting dish 4 and rotates together when worm 3 rotates, actuating rod 2's the outside is provided with worm 3, the one end of worm 3 is provided with coaxial ratchet 31, the position of ratchet 31 and actuating rod 22 phase-match, actuating rod 22 blocks between the ratchet 31, when actuating rod 22 pushes down, drives ratchet 31 and rotates, the both ends of worm 3 are blocked in supporting seat 14, supporting seat 14 is fixed in push button 1 lateral wall, be provided with sleeve 15 in push button 1 lateral wall department above spout 11, sleeve 15 department overlaps. The outer cover 5 is arranged outside the counting disc 4, and a window 51 is arranged at the outer cover corresponding to the reading or scale mark of the counting disc 4 and used for observing the reading at the counting disc 4.

Furthermore, in order to prevent the counting disc 4 from rotating and affecting the accuracy of reading, a return-preventing mechanism is arranged at the side wall of the push button corresponding to the ratchet wheel 31. The anti-return mechanism adopts anti-return teeth 12 protruding towards the ratchet wheel side, and the outer end face of the anti-return teeth 12 is set to be an inclined structure, so that the ratchet wheel 31 can only rotate towards one direction.

In this embodiment, the counting of the counting disc 4 takes the form of a reading and a count-down mechanism is used, i.e. as the number of rotations of the ratchet wheel 31 is greater, fewer readings are displayed until the reading is completed. In order to prevent the excessive use, a protruding stop tooth 13 is arranged on the side wall of the push button 1 corresponding to the counting disc 4, a stop rib 41 (shown in fig. 3) corresponding to the stop tooth in shape is arranged on one side surface of the counting disc corresponding to the stop tooth 13, when the counting times are reached, the stop tooth 13 interferes with the stop rib 41, and the counting disc 4 is locked and does not rotate any more.

In this embodiment, an arc-shaped supporting leg 23 is disposed below the actuating rod 2, and the supporting leg 23 adopts an elastic structure, so that after an aerosol aluminum can (not shown) is loosened, the actuating rod 2 resets due to the elastic force of the supporting leg 23, and a count is completed.

The working principle of the invention is as follows: when a user presses the aerosol aluminum can to move downwards, the actuation rod cantilever 21 is pressed to drive the actuation rod 2 to move downwards, and the actuation rod 2 is embedded in the sliding groove 11 of the push button 1 and moves up and down in the sliding groove 11. When the actuating rod 2 moves downwards, the actuating claw 22 pushes the ratchet wheel 31 on the worm 3 to rotate by a tooth position, and the worm 3 drives the counting disc 4 to rotate through the worm gear mechanism. Thereby changing the display of the reading of the counting disc 4 on the window 51 of the outer cover 5.

When the user releases the aerosol aluminum can to rebound upwards again, the actuation rod cantilever 21 is not subjected to pressing force any more, and the actuation rod 2 starts to recover from the elastic deformation state and moves upwards again. Since the push button 1 is provided with the anti-rotation tooth 12, it will block the ratchet wheel 31 on the worm 3 to prevent its rotation. Thereby ensuring that the actuation rod 2 does not move with the worm 3 during the upward movement, and the actuation pawl 22 rides over the ratchet teeth on the ratchet wheel 31 and returns to the initial position in preparation for the next actuation.

When the aerosol reaches the preset number of times, the stop tooth 13 arranged on the push button 1 interferes with the stop rib 41 at the back of the counting disc 4, and the counting disc 4 is prevented from continuously rotating. Thereby ensuring that the reading on the window 51 of the cover 5 shows the number 0 and no further change occurs.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An aerosol valve count indicator, comprising: the counting device comprises a push button, an actuating rod, a worm, a counting disc and an outer cover, wherein a sliding groove is formed in one outer side surface of the push button, the actuating rod is clamped in the sliding groove, the structure of the actuating rod is matched with the sliding groove, a cantilever which protrudes outwards is arranged on one side of the actuating rod and extends into the push button, an actuating claw which protrudes outwards is arranged on the other side of the actuating rod, the worm is arranged on the outer side of the actuating rod, a coaxial ratchet wheel is arranged at one end of the worm, the position of the ratchet wheel is matched with the actuating claw, the actuating claw is clamped between the ratchet wheels, two ends of the worm are clamped into a supporting seat, the supporting seat is fixed on the outer side wall of the push button, a sleeve is arranged on the outer side wall of the push button above the sliding groove, the counting disc is sleeved on the sleeve and correspondingly arranged above the worm, and counting teeth of the counting disc are meshed with the worm, the outer cover is arranged on the outer side of the counting disc;

a return-preventing mechanism is arranged at the side wall of the push button corresponding to the ratchet wheel; the anti-return mechanism adopts anti-rotation teeth protruding towards the side of the ratchet wheel, and the outer end surface of the anti-rotation teeth is arranged to be of an inclined structure, so that the ratchet wheel can only rotate towards one direction;

a protruding stop tooth is arranged on the side wall of the push button corresponding to the counting disc; and a stop rib corresponding to the stop tooth in shape is arranged on one side surface of the counting disc corresponding to the stop tooth.

2. An aerosol valve count indicator as claimed in claim 1 wherein a reading or scale is provided on the outer side of the counter disk.

3. The aerosol valve counter indicator of claim 2, wherein a window is provided in the outer cover corresponding to the counter disc reading or graduation marks.

4. The aerosol valve count indicator of claim 1, wherein the push button is further provided with a cover at a lower end thereof.

5. The aerosol valve count indicator of claim 1, wherein a reset device is further provided at the actuating lever.