CN212517036U - Miniature high temperature resistant machinery is switching on and switching off device regularly - Google Patents

Abstract

The utility model discloses a miniature high temperature resistant machinery is switching on and switching off electric installation regularly, including the core punch holder, be equipped with the core lower plate on the core punch holder, it is equipped with the strip shaft to rotate on formation installation cavity and the core lower plate between core lower plate and the core punch holder, the front end of core punch holder is equipped with movable terminal reed and quiet terminal reed relatively, the rear end of movable terminal reed is equipped with and is equipped with the movable contact on shell fragment and the shell fragment, the rear end of quiet terminal reed is equipped with the stationary contact corresponding with the movable contact position, be equipped with in the installation cavity positioning disk and the installation cavity with positioning disk, movable contact and stationary contact complex on-off device. Compared with the prior art, the utility model the advantage lie in: through the reasonable adjustment of the parameters and the structural layout of the gear transmission, the mechanical timing device is miniaturized, the aesthetic property of the appearance design of the household appliance is improved, and the production material cost of the household appliance can be greatly saved.

Description

Miniature high temperature resistant machinery is switching on and switching off device regularly

Technical Field

The utility model relates to a regularly circular telegram technical field specifically indicates a miniature high temperature resistant machinery is break-make electric installation regularly.

Background

With the continuous innovation of miniature household appliances, the requirement of customers on the mechanical timing power-on and power-off device is miniaturized so as to meet the requirement of design and installation space, and the high-temperature-resistant mechanical timing power-on and power-off device sold in the existing market cannot meet the new market requirement due to larger volume.

SUMMERY OF THE UTILITY MODEL

The utility model discloses with mechanical timing device through the reasonable adjustment to gear drive's parameter, structural layout, realized the miniaturization with mechanical timing device, the utility model provides a miniature domestic appliance's timing device installation space problem, both improved the aesthetic property of household electrical appliances appearance design, the also very big manufacturing material cost who saves household electrical appliances product that can.

In order to solve the technical problem, the utility model provides a technical scheme does: a miniature high-temperature-resistant mechanical timing power on-off device comprises a core upper clamp plate, wherein a core lower clamp plate is arranged on the core upper clamp plate, a mounting cavity is formed between the core lower clamp plate and the core upper clamp plate, a winding shaft extending into the mounting cavity is rotatably arranged on the core lower clamp plate, a movable terminal reed and a fixed terminal reed are oppositely arranged at the front end of the core upper clamp plate, a spring piece is arranged at the rear end of the movable terminal reed, a movable contact is arranged on the spring piece, a fixed contact corresponding to the position of the movable contact is arranged at the rear end of the fixed terminal reed, a positioning disc keyed on the winding shaft is arranged in the mounting cavity, a power on-off device matched with the positioning disc, the movable contact and the fixed contact is arranged in the mounting cavity, a winding wheel positioned in the mounting cavity is arranged on the winding shaft, a reset mechanism connected with the winding wheel is arranged in the mounting cavity, a connecting gear connected with the reset mechanism is, an escapement mechanism connected with the connecting gear is arranged in the mounting cavity.

As an improvement, the on-off device comprises a timing disc which is keyed on the positioning disc, a notch is formed in the timing disc, a timing card is rotatably arranged in the installation cavity, a clamping rod clamped in the notch is arranged on the timing card, and a push block abutting against the elastic sheet is arranged on one side, far away from the clamping rod, of the timing card.

As an improvement, the reset mechanism comprises three transmission gears which are meshed in pairs, the transmission gear close to the winding wheel is meshed with the winding wheel, and a spiral spring connected with the winding wheel is sleeved on a winding wheel shaft.

As an improvement, a dust cover sleeved on the upper strip wheel shaft is arranged on the lower clamp plate of the machine core.

Compared with the prior art, the utility model the advantage lie in:

1. the volume is smaller, the small-sized household appliance is suitable for the use requirement of the small-sized household appliance, the problem of insufficient installation space is solved, and the appearance of the small-sized household appliance can be more miniaturized;

2. the volume is reduced, and the cost of manufacturing materials of the product is greatly saved;

3. the design of the four-stage gear transmission mechanism ensures that the timer runs more stably;

4. the external design of the spiral spring solves the difficulty of reducing the volume of the device, and simultaneously reduces the problems that the friction resistance of the original spring arranged in the movement is large and the moment release of the spring is influenced, so that the stealing and stopping probability of the timer is reduced to a certain degree;

5. the dust cover has the function of the mounting bracket, so that the appearance size of the timer is reduced, and the manufacturing cost of the bracket is saved.

Drawings

Fig. 1 is a schematic view of the internal structure of a micro high-temperature-resistant mechanical timing power-on/off device of the present invention;

FIG. 2 is a perspective view of the internal transmission system of a micro high temperature resistant mechanical timed on-off device of the present invention;

FIG. 3 is a schematic diagram of the external structure of a micro high temperature-resistant mechanical timing power-on/off device of the present invention;

fig. 4 is a schematic structural diagram of the miniature high-temperature-resistant mechanical timing on-off device for removing the dust cover.

As shown in the figure: 1. the mechanism comprises a mechanism upper clamp plate 2, a mechanism lower clamp plate 3, a winding wheel shaft 4, a movable terminal reed 5, a fixed terminal reed 6, a spring plate 7, a movable contact 8, a fixed contact 9, a positioning disc 10, a winding wheel 11, an escapement mechanism 12, a timing disc 13, a gap 14, a timing card 15, a clamping rod 16, a push block 17, a transmission gear 18, a volute spiral spring 19 and a dust cover.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

With the attached drawing, the miniature high-temperature-resistant mechanical timing power on-off device comprises a core upper clamp plate 1, wherein a core lower clamp plate 2 is arranged on the core upper clamp plate 1, an installation cavity is formed between the core lower clamp plate 2 and the core upper clamp plate 1, an upper strip wheel shaft 3 extending into the installation cavity is rotatably arranged on the core lower clamp plate 2, a movable terminal reed 4 and a fixed terminal reed 5 are oppositely arranged at the front end of the core upper clamp plate 1, a spring sheet 6 is arranged at the rear end of the movable terminal reed 4, a movable contact 7 is arranged on the spring sheet 6, a fixed contact 8 corresponding to the movable contact 7 is arranged at the rear end of the fixed terminal reed 5, a positioning disc 9 keyed on the upper strip wheel shaft 3 is arranged in the installation cavity, a power on-off device matched with the positioning disc 9, the movable contact 7 and the fixed contact 8 is arranged in the installation cavity, an upper strip wheel 10 positioned in the installation cavity is arranged in the installation cavity, and a reset mechanism connected with the upper, a connecting gear connected with the reset mechanism is rotationally arranged in the mounting cavity, and an escapement mechanism 11 connected with the connecting gear is arranged in the mounting cavity.

The on-off device comprises a timing disk 12 which is keyed on the positioning disk 9, a notch 13 is arranged on the timing disk 12, a timing card 14 is rotationally arranged in the installation cavity, a clamping rod 15 clamped in the notch 13 is arranged on the timing card, and a push block 16 which abuts against the elastic sheet 6 is arranged on one side, away from the clamping rod 15, of the timing card 14.

The reset mechanism comprises three transmission gears 17 which are meshed in pairs, the transmission gear 17 close to the winding wheel 10 is meshed with the winding wheel 10, and a spiral spring 18 connected with the winding wheel 10 is sleeved on the winding wheel shaft 3.

And a dust cover 19 sleeved on the upper strip wheel shaft 3 is arranged on the machine core lower clamping plate 2.

When the utility model is implemented, under the normal condition, the timing card clamps the clamping rod in the gap under the action of the elastic force of the elastic piece, and is in the power-off state, the winding wheel shaft is rotated, the winding wheel shaft rotates to drive the positioning disc to rotate, the positioning disc rotates to drive the timing disc to rotate, the timing disc rotates to enable the clamping rod to be separated from the gap, the timing card rotates to drive the push block to extrude the elastic piece, the movable contact point on the elastic piece is contacted with the stationary contact point to realize the electrification, meanwhile, the winding wheel shaft drives the winding wheel to rotate, the rotating gear drives the three transmission gears to rotate, the scroll can be tightened by the rotation of the winding wheel, the connecting gear follows the rotation, the connecting gear rotates to drive the escape wheel to rotate, the three transmission gears are reversed under the action of the restoring force of the scroll, the escape mechanism belongs to the prior art, the three constant, the winding wheel axle reverses to drive the positioning disk to reverse, the positioning disk reverses to drive the timing disk to reverse, the timing card reverses under the action of elastic force of the elastic sheet, the clamping rod is clamped into the notch, the movable contact is separated from the stationary contact and is in a power-off state, and therefore the whole process of timing power-on and timing power-off is completed.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims (4)

1. The utility model provides a miniature high temperature resistant machinery is switching on and shutting down device regularly, includes core punch holder (1), its characterized in that: a machine core lower clamp plate (2) is arranged on the machine core upper clamp plate (1), a mounting cavity is formed between the machine core lower clamp plate (2) and the machine core upper clamp plate (1), a winding wheel shaft (3) extending into the mounting cavity is rotatably arranged on the machine core lower clamp plate (2), a movable terminal reed (4) and a fixed terminal reed (5) are oppositely arranged at the front end of the machine core upper clamp plate (1), an elastic sheet (6) is arranged at the rear end of the movable terminal reed (4), a movable contact (7) is arranged on the elastic sheet (6), a fixed contact (8) corresponding to the movable contact (7) is arranged at the rear end of the fixed terminal reed (5), a positioning disc (9) which is keyed on the winding wheel shaft (3) is arranged in the mounting cavity, an on-off device matched with the positioning disc (9), the movable contact (7) and the fixed contact (8) is arranged in the mounting cavity, a winding wheel shaft (3) is provided with a winding wheel (10) positioned in the, the winding mechanism is characterized in that a reset mechanism connected with the winding wheel (10) is arranged in the mounting cavity, a connecting gear connected with the reset mechanism is rotationally arranged in the mounting cavity, and an escapement mechanism (11) connected with the connecting gear is arranged in the mounting cavity.

2. The micro high-temperature-resistant mechanical timed on-off device as claimed in claim 1, wherein: the on-off device comprises a timing disk (12) which is keyed on the positioning disk (9), a notch (13) is formed in the timing disk (12), a timing clamp (14) is arranged in the mounting cavity in a rotating mode, a clamping rod (15) clamped in the notch (13) is arranged on the timing clamp, and a push block (16) abutting against the elastic sheet (6) is arranged on one side, far away from the clamping rod (15), of the timing clamp (14).

3. The micro high-temperature-resistant mechanical timed on-off device as claimed in claim 1, wherein: the reset mechanism comprises three transmission gears (17) which are meshed in pairs, the transmission gear (17) close to the winding wheel (10) is meshed with the winding wheel (10), and a spiral spring (18) connected with the winding wheel (10) is sleeved on the winding wheel shaft (3).

4. The micro high-temperature-resistant mechanical timed on-off device as claimed in claim 1, wherein: and a dust cover (19) sleeved on the upper strip wheel shaft (3) is arranged on the machine core lower clamping plate (2).

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