CN213340221U

CN213340221U - Driving wheel assembly of timer

Info

Publication number: CN213340221U
Application number: CN202022431063.6U
Authority: CN
Inventors: 朱满国
Original assignee: Ningbo Aimeige Electrical Appliance Co ltd
Current assignee: Ningbo Aimeige Electrical Appliance Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-06-01
Anticipated expiration: 2030-10-28

Abstract

The utility model relates to a timer driving wheel assembly, which comprises a main shaft, a gear which is rotatably sleeved at the front end of the main shaft, and a sub-shaft which is concentric and detachably fixed at the front end of the main shaft; a first counter bore is formed in the center of the front end of the gear, a through hole is formed in the center of the bottom surface of the first counter bore, correspondingly, a connecting shaft is formed outwards at the front end of the female shaft, and the connecting shaft is rotatably inserted into the through hole; a rotary table is outwards formed at the rear end of the sub-shaft, an inserting strip is outwards formed at the center of the rear side of the rotary table, correspondingly, an inserting hole is formed in the center of the end face of the connecting shaft, and the inserting strip is inserted into the inserting hole so that the fixing between the main shaft and the sub-shaft has a directional inserting function; the utility model discloses the part is few and simple structure, and then has reduced manufacturing cost, has simplified production and assembly process simultaneously in order to improve production efficiency.

Description

Driving wheel assembly of timer

Technical Field

The utility model relates to a timer action wheel assembly.

Background

The timer is timing equipment applied to various small household appliances and is used for controlling a circuit to be automatically switched on and off at a set time point; the driving wheel assembly is one of the main parts of the timer and plays a role of simultaneously connecting a clockwork spring, a travel gear set, a timing wheel and a knob switch; the spring can be wound by the aid of the driving wheel assembly to start timing by rotating the knob switch; the existing timer driving wheel assembly is complex in structure, more in parts, higher in production cost, more complicated in processing and assembling procedures, lower in production efficiency and to be further improved.

SUMMERY OF THE UTILITY MODEL

To the present situation of the above prior art, the technical problem to be solved in the utility model is to provide a part is few and simple structure in order to reduce manufacturing cost to simplified processing and assembly process in order to improve production efficiency's timer action wheel assembly.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a timer driving wheel assembly is characterized by comprising a main shaft, a gear which is rotatably sleeved at the front end of the main shaft, and a sub-shaft which is concentric and detachably fixed at the front end of the main shaft; a first counter bore is formed in the center of the front end of the gear, a through hole is formed in the center of the bottom surface of the first counter bore, correspondingly, a connecting shaft is formed outwards at the front end of the female shaft, the connecting shaft is rotatably inserted into the through hole, and the outer diameter of the connecting shaft is smaller than that of the female shaft; a rotary disc is formed outwards at the rear end of the sub-shaft and concentrically arranged in a first counter bore, a stop block is formed outwards on the inner wall of the first counter bore, correspondingly, a limit block is formed outwards on the circumferential side surface of the rotary disc, and the limit block and the stop block are matched with each other; the center of the rear side of the turntable is outwards provided with an inserting strip, correspondingly, the center of the end surface of the connecting shaft is provided with an inserting hole, and the inserting strip is inserted into the inserting hole so that the fixing between the main shaft and the sub shaft has a directional inserting function; the root of connecting axle still outwards is formed with the retaining ring, the front side laminating of retaining ring is in the rear end of gear, the external diameter of retaining ring is greater than the external diameter of female shaft.

Preferably, a rotating shaft is formed at the center of the rear end of the female shaft outward, and the outer diameter of the rotating shaft is smaller than that of the female shaft.

Preferably, two first protruding strips which are diagonally arranged with each other are formed outwards on the outer wall of the root of the rotating shaft, and the widths of the two first protruding strips may be the same or different.

Preferably, two second protruding strips which are diagonally arranged with each other are further formed outwards on the outer wall of the rear end of the sub-shaft, and the two second protruding strips are arranged on the front side of the turntable.

Compared with the prior art, the utility model has the advantages of: the utility model discloses the part is few and simple structure, and then has reduced manufacturing cost, has simplified production and assembly process simultaneously in order to improve production efficiency.

Drawings

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

FIG. 2 is a rear structural view of the sub-shaft of the present invention;

FIG. 3 is a front structural view of the main shaft of the present invention;

fig. 4 is a structural diagram of a drive pulley assembly in the prior art.

Detailed Description

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

To maintain the following description of the embodiments of the present invention clear and concise, detailed descriptions of well-known functions and components may be omitted.

As shown in fig. 1 to 3, a timer driving wheel assembly comprises a main shaft 1, a gear 2 rotatably sleeved at the front end of the main shaft 1, and a sub-shaft 3 concentrically and detachably fixed at the front end of the main shaft 1; a first counter bore 21 is formed in the center of the front end of the gear 2, a through hole 22 is formed in the center of the bottom surface of the first counter bore 21, correspondingly, a connecting shaft 11 is formed outwards at the front end of the female shaft 1, the connecting shaft 11 is rotatably inserted into the through hole 22, and the outer diameter of the connecting shaft 11 is smaller than that of the female shaft 1; a rotary disc 33 is formed outwards at the rear end of the sub-shaft 3, the rotary disc 33 is concentrically arranged in the first counter bore 21, a stop block 23 is formed outwards on the inner wall of the first counter bore 21, correspondingly, a stop block 31 is formed outwards on the circumferential side surface of the rotary disc 33, and the stop block 31 is matched with the stop block 23; an inserting strip 32 is formed outwards at the center of the rear side of the rotary table 33, correspondingly, an inserting hole 15 is formed in the center of the end face of the connecting shaft 11, and the inserting strip 32 is inserted into the inserting hole 15 so that the fixing between the main shaft 1 and the sub shaft 3 has a directional inserting function; a retainer ring 12 is further formed outwards at the root of the connecting shaft 11, the front side of the retainer ring 12 is attached to the rear end of the gear 2, and the outer diameter of the retainer ring 12 is larger than that of the female shaft 1; after the female shaft 1 and the sub-shaft 3 are mutually inserted and fixed, the rotary table 33 and the check ring 12 are respectively clamped at the front end and the rear end of the gear 2, so that the gear 2 can be effectively prevented from moving back and forth along the axial direction; the rotary female shaft 1 can drive the rotor shaft 3 to rotate, and then the gear 2 is driven to rotate by means of the mutual matching of the limiting block 31 and the stop block 23.

A rotating shaft 13 is formed outwards at the center of the rear end of the female shaft 1, and the outer diameter of the rotating shaft 13 is smaller than that of the female shaft 1; two first protruding strips 14 arranged diagonally to each other are formed outwards on the outer wall of the root of the rotating shaft 13, and the widths of the two first protruding strips 14 may be the same or different.

Two second protruding strips 34 which are diagonally arranged with each other are further formed outwards on the outer wall of the rear end of the sub-shaft 3, and the two second protruding strips 34 are arranged on the front side of the turntable 33.

When in use, the utility model is arranged in the shell of the timer, the female shaft 1 is inserted into the shell, the rotating shaft 13 extends out of the shell so as to be sleeved with the knob switch, when the widths of the two first raised bars 14 are different, the directional sleeving with the knob switch can be realized, and the check ring 12 is positioned in the shell and is used for preventing the female shaft 1 from separating from the shell; the gear 2 is connected with a clockwork mechanism, and the two second convex strips 34 are inserted into the timing wheel 6; after the female shaft 1 is rotated by means of the knob switch, the sub-shaft 3 can be driven to rotate, and then the rotation is carried out by means of the rotary disc 33, when the limiting block 31 abuts against one side of the stop block 23, the sub-shaft 3 rotates to drive the gear 2 to rotate, so that the clockwork is tightened, and the timing work is started.

After the timing work starts, gear 2 is slow reverse rotation under the drive of clockwork spring and the transmission effect of time-lapse gear train, and then drives female axle 1 and the rotation of sub-axle 3 to it is rotatory to drive timing wheel 6 with the help of two second sand grips 34, and when reaching the set-up timing time after, timing wheel 6 trigger switch disconnection, stopper 31 at this moment supports the opposite side of dog 23, thereby drives female axle 1 reverse rotation with the help of sub-axle 3, finally drives knob switch and resets.

As shown in fig. 4, the timer driving wheel assembly in the prior art is formed by assembling a plurality of components such as a metal shaft 4, a driving gear 5, a connecting pin 7 and a limit pin 8, and has a complex structure, more components and higher production cost, and a snap spring is required to be used and riveted during assembly, so that the processing and assembling procedures are complicated, and the production efficiency is low; the utility model discloses the part is few and simple structure, and then has reduced manufacturing cost, has simplified production and assembly process simultaneously in order to improve production efficiency.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A timer driving wheel assembly is characterized by comprising a main shaft, a gear which is rotatably sleeved at the front end of the main shaft, and a sub-shaft which is concentric and detachably fixed at the front end of the main shaft; a first counter bore is formed in the center of the front end of the gear, a through hole is formed in the center of the bottom surface of the first counter bore, correspondingly, a connecting shaft is formed outwards at the front end of the female shaft, the connecting shaft is rotatably inserted into the through hole, and the outer diameter of the connecting shaft is smaller than that of the female shaft; a rotary disc is formed outwards at the rear end of the sub-shaft and concentrically arranged in a first counter bore, a stop block is formed outwards on the inner wall of the first counter bore, correspondingly, a limit block is formed outwards on the circumferential side surface of the rotary disc, and the limit block and the stop block are matched with each other; the center of the rear side of the turntable is outwards provided with an inserting strip, correspondingly, the center of the end surface of the connecting shaft is provided with an inserting hole, and the inserting strip is inserted into the inserting hole so that the fixing between the main shaft and the sub shaft has a directional inserting function; the root of connecting axle still outwards is formed with the retaining ring, the front side laminating of retaining ring is in the rear end of gear, the external diameter of retaining ring is greater than the external diameter of female shaft.

2. The drive pulley assembly for timers according to claim 1, wherein a rotation shaft is formed outward from a center of a rear end of the female shaft, and an outer diameter of the rotation shaft is smaller than an outer diameter of the female shaft.

3. The timer driving wheel assembly as claimed in claim 2, wherein two first protruding strips are formed on the outer wall of the root portion of the rotating shaft, and the two first protruding strips are disposed diagonally to each other, and the width of the two first protruding strips may be the same or different.

4. The timer driving wheel assembly as claimed in claim 1, wherein two second protruding strips are formed on the outer wall of the rear end of the sub-shaft, and the two second protruding strips are disposed at opposite angles, and both the two second protruding strips are disposed at the front side of the rotating disc.