CN210222492U

CN210222492U - Novel quartz clock type timer movement

Info

Publication number: CN210222492U
Application number: CN201921144729.0U
Authority: CN
Inventors: Hanjun Chi; 池汉军
Original assignee: Hangzhou Jingcheng Sanhe Timer Industry Co ltd
Current assignee: Hangzhou Jingcheng Sanhe Timer Industry Co ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-03-31
Anticipated expiration: 2029-07-19

Abstract

The utility model relates to a timing device. The purpose provides a novel quartz clock formula timer core, and this core should possess the operation of mechanical core and feel and quartz core quiet in operation, the accurate characteristics of timing. The technical scheme is as follows: the novel quartz clock type timer movement comprises a motor, a transmission gear set and a central wheel assembly which are arranged in a shell; the motor power is transmitted to the central wheel assembly through the transmission gear set; the transmission gear set comprises a first gear, at least one transition gear and a combined gear which are meshed in sequence; the method is characterized in that: the combined gear comprises a second gear with an inner ratchet wheel and a third gear with a claw disc, the third gear is rotatably positioned on a wheel shaft of the second gear, the claw disc is arranged in the inner ratchet wheel, and a plurality of pawls meshed with the inner ratchet wheel are arranged on the periphery of the claw disc.

Description

Novel quartz clock type timer movement

Technical Field

The utility model relates to a timing device specifically is a timer.

Background

The timer is an important timing tool, and can help people to accurately control time, so that the working efficiency and the working quality are improved. The timer mainly comprises a shell with a scale cover and a movement arranged in the shell, the scale cover is rotated to a timing position during use, then the movement drives the scale cover to rotate reversely, and when the scale cover returns to 0 scale, a prompt sound is triggered.

The existing timer movement generally adopts a mechanical movement or a quartz movement, wherein: the mechanical movement has the advantages of simplicity, reliability and lower cost, but also has the defects of larger error and larger noise (the ticking sound is continuously generated in the time-walking process), when the graduated cover is rotated for timing and design, the graduated cover winds up a clockwork spring of the movement through a central wheel and an internal gear of the movement to provide power for time-walking and ringing; the quartz movement has the characteristics of low noise and accurate timing, when the rotary scale cover is used for timing and setting, the central wheel slides relatively while the internal gear of the movement is not moved, so that the timer with different movements has obviously different operation handfeels when the rotary scale cover is used for rotating the timer, the quartz movement is difficult to embody the specific mechanical vibration and sound of the mechanical movement, and the requirements of part of users (especially mechanical enthusiasts) cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough among the above-mentioned background art, provide a novel quartz clock formula timer core, this core should possess the operation of mechanical core and feel and quartz core quiet in operation, the accurate characteristics of timing.

The technical scheme of the utility model is that:

the novel quartz clock type timer movement comprises a motor, a transmission gear set and a central wheel assembly which are arranged in a shell; the motor power is transmitted to the central wheel assembly through the transmission gear set; the transmission gear set comprises a first gear, at least one transition gear and a combined gear which are meshed in sequence; the method is characterized in that: the combined gear comprises a second gear with an inner ratchet wheel and a third gear with a claw disc, the third gear is rotatably positioned on a wheel shaft of the second gear, the claw disc is arranged in the inner ratchet wheel, and a plurality of pawls meshed with the inner ratchet wheel are arranged on the periphery of the claw disc.

The first gear is coaxially fixed with a rotor of the motor, and the third gear is meshed with the central wheel assembly.

The transition gear is a crown gear; the transition gear comprises a first transition gear and a second transition gear; the first gear, the first transition gear, the second transition gear and the second gear are meshed in sequence.

The second transition gear is coaxially arranged with the sun gear assembly.

The center wheel assembly comprises a center wheel which is rotatably positioned in the shell, a transmission gear which is rotatably positioned on the center wheel and is meshed with the third gear, and a spring pressing sheet which is used for pressing the transmission gear on the center wheel so as to generate friction driving force between the transmission gear and the third gear.

The transmission gear is provided with a center hole matched with the center wheel, and the bottom surface of the transmission gear is provided with a concave hole matched with a pressure plate of the center wheel.

The utility model has the advantages that:

the utility model discloses improved the inside gear structure of core, had simple structure, the cost is lower and the convenient advantage of production, constantly beated on the ratchet including during the pawl rotates to the production has the vibration of certain frequency and the sound of "kaka", under the condition that possesses the good characteristic of quartzy core, has simulated the use of mechanical core better and has felt, has satisfied user's demand.

Drawings

Fig. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic top view of the present invention.

Fig. 3 is a schematic view of the structure of the motor, the transmission gear set and the center wheel assembly in the present invention.

Fig. 4 is a schematic top view of the structure of fig. 3.

Fig. 5 is an exploded view of the present invention.

Fig. 6 is a front view structure diagram of the composite gear of the present invention.

Fig. 7 is a schematic top view of the structure of fig. 6.

Fig. 8 is an exploded view of fig. 6.

Fig. 9 is a front view of the center wheel assembly of the present invention.

Fig. 10 is an exploded view of fig. 9.

Detailed Description

The present invention will be further described with reference to the drawings attached to the specification, but the present invention is not limited to the following embodiments.

As shown in fig. 1, the novel quartz clock type timer movement comprises a housing 1, a motor 2, a transmission gear set and a central gear assembly 3. In fig. 1, the housing includes a housing base 1.1 and a housing cover 1.2, a transmission gear set is rotatably positioned between the housing base and the housing cover, a center wheel assembly is rotatably positioned on the top surface of the housing base, and a motor is disposed on the right side of the housing and between the housing base and the housing cover.

The motor comprises a bobbin 2.1 wound with a coil (not shown) and fixed to the housing, stator plates 2.2 fixed to the ends of the bobbin, pins 2.4 connected to the coil and protruding outside the housing, a rotor 2.3 arranged between the stator plates and rotatably positioned on the housing. The pin is also connected with an external circuit board, and when the motor is started, the coil is switched on, so that a variable magnetic field is generated between the stator sheets to drive the rotor to rotate.

The motor power is transmitted to the center wheel assembly through the transmission gear set. The transmission gear set comprises a first gear 4, a first transition gear 7.1, a second transition gear 7.2 and a combined gear which are meshed in sequence. The first transition gear and the second transition gear are crown gears, and the second transition gear and the central gear component are coaxially arranged. The first gear is coaxially fixed with a rotor of the motor, the first gear is meshed with a large gear ring of the first transition gear, a small gear ring of the first transition gear is meshed with a large gear ring of the second transition gear, and a small gear ring of the second transition gear is meshed with the combined gear.

The central wheel assembly comprises a central wheel 8, a transmission gear 9 and a spring pressing sheet 10 which are coaxially arranged. The centre wheel includes pressure disk 8.2 and the main shaft 8.1 of setting on the pressure disk of bottom, and the upper portion of main shaft is equipped with assembly breach 8.4, and the centre wheel rotationally fixes a position on support column 1.3 of shell seat (pressure disk bottom surface is equipped with the shaft hole of cooperation support column).

The transmission gear is respectively provided with a central hole 9.1 for the central wheel spindle to pass through, a concave hole 9.2 positioned on the bottom surface and a gear ring 9.3 positioned on the outer circumferential surface. The transmission gear is rotationally positioned on the main shaft of the center wheel, a concave hole of the transmission gear covers the pressure plate (the inner diameter of the concave hole is larger than the outer diameter of the pressure plate), and the transmission gear is meshed with the third gear. The transmission gear and the spring pressing sheet are sequentially sleeved on the central shaft, the edge shape of a pressing sheet central hole 10.1 in the spring pressing sheet is matched with the plane 8.3 part of the main shaft (so that the spring pressing sheet and the main shaft cannot rotate relatively), the spring pressing sheet is firmly fixed on the main shaft due to the deformation generated after 8.5 riveting points in the main shaft are riveted, and the transmission gear is pressed on the pressing plate by applying appropriate axial pressure to the transmission gear. And a friction material can be arranged between the top surface of the pressure plate and the bottom surface of the concave hole to ensure enough friction force.

The structure is similar to the existing quartz clock movement timer.

The utility model discloses an improvement is: the combined gear comprises a second gear 5, a third gear 6, an inner ratchet wheel 5.1 coaxially fixed with the second gear, and a claw disc 6.1 coaxially fixed with the third gear. The inner circumferential surface of the inner ratchet wheel is provided with one-way teeth, the third gear is rotatably positioned on a rotating shaft 5.2 of the second gear, the claw disc is arranged in the inner ratchet wheel, a plurality of pawls 6.2 are arranged on the periphery of the claw disc and meshed with the inner ratchet wheel, the second gear is meshed with a small gear ring of the second transition gear, and the third gear is meshed with the central wheel assembly.

The utility model discloses a each part can purchase the acquisition outward.

The utility model discloses a theory of operation is:

the main shaft of the central wheel is connected with an external scale cover; if timing is needed, the scale cover is manually rotated clockwise (in the direction of an arrow in fig. 2), the central wheel assembly drives the pawl disc to rotate anticlockwise, and the pawl disc drives the pawl to slide along the tooth surface of the inner ratchet wheel; after timing is finished, the movement starts countdown, motor power is transmitted to the central wheel assembly through the transmission gear set (the second gear rotates clockwise, the third gear is driven to rotate clockwise through friction force of the inner ratchet wheel and the pawl, the friction force is smaller than that of the central wheel assembly and the scale cover during rotation so as to prevent the pawl from slipping), and the central wheel assembly rotates anticlockwise and drives the outer scale cover to rotate reversely; when the scale cover is manually rotated anticlockwise (the timing position is adjusted), the pawl is locked by the inner ratchet wheel, and the pressure plate of the central wheel component and the transmission gear slip, so that the transmission gear set cannot be driven to rotate (the protection effect is achieved, and the internal structure is prevented from being damaged).

When the scale cover is rotated clockwise, a certain thrust is required to be applied to drive the pawl to deform and slide through the one-way teeth on the inner ratchet wheel, once the pawl slides through one-way tooth, vibration and sound with certain frequency can be generated during continuous rotation, and the scale cover has a clearer gear feeling and is similar to the hand feeling of a mechanical movement.

Claims

1. The novel quartz clock type timer movement comprises a motor (2), a transmission gear set and a central wheel assembly (3) which are arranged in a shell (1); the motor power is transmitted to the central wheel assembly through the transmission gear set; the transmission gear set comprises a first gear (4), at least one transition gear and a combined gear which are meshed in sequence; the method is characterized in that: the combined gear comprises a second gear (5) with an inner ratchet wheel (5.1) and a third gear (6) with a claw disc (6.1), the third gear is rotatably positioned on a wheel shaft (5.2) of the second gear, the claw disc is arranged in the inner ratchet wheel, and a plurality of pawls (6.2) meshed with the inner ratchet wheel are arranged on the periphery of the claw disc.

2. A novel quartz clock-type timer movement according to claim 1, characterized in that: the first gear is coaxially fixed with a rotor of the motor, and the third gear is meshed with the central wheel assembly.

3. A novel quartz clock-type timer movement according to claim 2, characterized in that: the transition gear is a crown gear; the transition gear comprises a first transition gear (7.1) and a second transition gear (7.2); the first gear, the first transition gear, the second transition gear and the second gear are meshed in sequence.

4. A novel quartz clock-type timer movement according to claim 3, characterized in that: the second transition gear is coaxially arranged with the sun gear assembly.

5. The novel quartz clock-type timer movement of claim 4, wherein: the center wheel assembly comprises a center wheel (8) rotatably positioned in the shell, a transmission gear (9) rotatably positioned on the center wheel and meshed with the third gear, and a spring pressing sheet (10) for pressing the transmission gear on the center wheel to generate friction driving force between the center wheel and the transmission gear.

6. A novel quartz clock-type timer movement according to claim 5, characterized in that: the transmission gear is provided with a center hole (9.1) matched with the center wheel, and the bottom surface of the transmission gear is provided with a concave hole (9.2) matched with a pressure plate (8.2) of the center wheel.