阅读说明：本技术 一种微型耐高温机械定时通断电装置 (Miniature high temperature resistant machinery is switching on and switching off device regularly ) 是由 赵帅 赵筛根 于 2020-05-08 设计创作，主要内容包括：本发明公开了一种微型耐高温机械定时通断电装置,包括机芯上夹板,所述机芯上夹板上设有机芯下夹板,所述机芯下夹板与机芯上夹板之间形成安装腔且机芯下夹板上转动设有条轮轴,所述机芯上夹板的前端相对设有动端子簧片和静端子簧片,所述动端子簧片的后端设有弹片且弹片上设有动触点,所述静端子簧片的后端设有与动触点位置相对应的静触点,所述安装腔内设有定位盘且安装腔内设有与定位盘、动触点和静触点配合的通断装置。本发明与现有技术相比的优点在于：通过对齿轮传动的的参数、结构布局的合理调整,将机械定时装置实现了小型化,既提高了家电产品外观设计的美观性,也能极大的节省家电产品的生产材料成本。(The invention discloses a miniature high-temperature-resistant mechanical timing power on-off device which comprises a core upper clamp plate, wherein a core lower clamp plate is arranged on the core upper clamp plate, an installation cavity is formed between the core lower clamp plate and the core upper clamp plate, a strip wheel shaft 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 movable contact is arranged at the rear end of the fixed terminal reed, a positioning disc is arranged in the installation cavity, and a power on-off device matched with the positioning disc, the movable contact and the fixed contact is arranged in the installation cavity. Compared with the prior art, the invention has the advantages that: 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.)

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 card (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 card, and a push block (16) abutted against the elastic sheet (6) is arranged on one side, far away from the clamping rod (15), of the timing card (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).

Technical Field

The invention relates to the technical field of timing electrification, in particular to a micro high-temperature-resistant mechanical timing on-off device.

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.

Disclosure of Invention

The invention realizes the miniaturization of the mechanical timing device by reasonably adjusting the parameters and the structural layout of the gear transmission, solves the problem of the installation space of the timing device of the miniature household appliance, improves the aesthetic property of the appearance design of the household appliance, and can greatly save the production material cost of the household appliance.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: 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 which is abutted 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 invention has the advantages that:

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 diagram of the internal structure of a micro high temperature-resistant mechanical timing power-on/power-off device according to the present invention;

FIG. 2 is a perspective view of the internal transmission system of a miniature high temperature resistant mechanical timed power 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/power-off device according to the present invention;

FIG. 4 is a schematic structural diagram of a miniature high temperature resistant mechanical timing power on/off device with a dust cover removed.

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.

In the specific implementation of the invention, under the normal condition, a timing card clamps a clamping rod in a notch under the action of elastic force of a spring plate, the clamping rod is in a power-off state, a winding wheel shaft is rotated, the winding wheel shaft rotates to drive a positioning disc to rotate, the positioning disc rotates to drive a timing disc to rotate, the timing disc rotates to enable the clamping rod to be separated from the notch, the timing card rotates to drive a push block to extrude the spring plate, a movable contact point on the spring plate is in contact with a stationary contact point to realize electrification, the winding wheel shaft drives a winding wheel to rotate, a rotating gear drives three transmission gears to rotate, the winding wheel can be wound up by the rotation of the winding wheel, a connecting gear rotates along with the rotation, the connecting gear rotates to drive an escape wheel to rotate, the three transmission gears rotate along with the return force of the spiral spring, the escape mechanism belongs to the prior art, the, 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 its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.