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CN-224227458-U - Electric washing timer

CN224227458UCN 224227458 UCN224227458 UCN 224227458UCN-224227458-U

Abstract

The utility model provides an electric washing timer, which comprises a shell, a movable reed, a left fixed reed and a right fixed reed which are arranged in the shell, wherein a conversion mechanism is arranged in the shell, the conversion mechanism comprises a program conversion plate, the program conversion plate is provided with a pair of abutting surfaces which are respectively elastically abutted against the left fixed reed and the right fixed reed, and the electric washing timer is characterized in that the abutting surfaces comprise an upper straight line section, a lower straight line section and an inclined section which is connected with the upper straight line section and the lower straight line section, and the conversion mechanism also comprises an adjusting shaft which is movably matched with the program conversion plate and can move the program conversion plate up and down by rotating the adjusting shaft and adjust the abutting positions of the left fixed reed and the right fixed reed on the abutting surfaces. The left fixed reed and the right fixed reed of the washing timer can elastically conflict with any position on the inclined section, so that various washing programs can be arranged on the inclined section, and the condition that step-shaped conflict surfaces interfere or are not in place when the washing programs are added in the prior art is avoided.

Inventors

  • HU FANLIN
  • TONG GUOQIANG
  • LIU FEIFEI
  • YUAN YI

Assignees

  • 宁波东海定时器有限公司
  • 宁波东海集团有限公司

Dates

Publication Date
20260512
Application Date
20250530

Claims (9)

  1. 1. An electric washing timer comprises a shell (1), a movable reed (2), a left fixed reed (3) and a right fixed reed (4) which are arranged in the shell (1), wherein a preset distance is kept between contacts (5) of the left fixed reed (3) and the right fixed reed (4) and contacts (5) of the movable reed (2), a switching mechanism (6) for adjusting the preset distance to switch a washing program is further arranged in the shell (1), the switching mechanism (6) comprises a program switching plate (61), the program switching plate (61) is provided with a pair of abutting surfaces (611), the abutting surfaces (611) elastically abut against the left fixed reed (3) and the right fixed reed (4) respectively, and the electric washing timer is characterized in that the abutting surfaces (611) comprise an upper straight line segment (611 a), a lower straight line segment (611 b) and an inclined segment (c) for connecting the upper straight line segment (611 a) and the lower straight line segment (611 b), the left fixed reed (3) and the right fixed reed (4) abut against the upper straight line segment (611 a) to be smaller than the preset distance (611 b) when the preset distance is adjusted by the program switching plate (61) and the program switching mechanism (62) is matched with the movable shaft (61), and can move the program conversion plate (61) up and down and adjust the abutting positions of the left fixed reed (3) and the right fixed reed (4) on the abutting surface (611) by rotating the adjusting shaft (62).
  2. 2. The electric washing timer according to claim 1, wherein the program conversion plate (61) is provided with an adjustment hole (612), a rack portion (613) is provided in the adjustment hole (612), a gear portion (621) is provided on the adjustment shaft (62) to be engaged with the rack portion (613), and the adjustment shaft (62) is mounted in the adjustment hole (612) by engagement of the gear portion (621) with the rack portion (613).
  3. 3. The electric washing timer according to claim 2, further comprising a limiting assembly (7), wherein the limiting assembly (7) comprises a limiting cam (71) and a limiting reed (72), the limiting cam (71) is arranged on the adjusting shaft (62) and is positioned on the gear part (621), the limiting cam (71) is provided with at least two limiting surfaces (711), and the limiting surfaces (711) can be selectively attached to the limiting reed (72) to limit the adjusting shaft (62).
  4. 4. An electric washing timer according to claim 3, characterized in that the arc transitions between the limiting surfaces (711).
  5. 5. The electric washing timer according to claim 2, wherein the housing (1) is provided with a mounting hole (11), the adjusting shaft (62) is provided with a mounting portion (622) capable of being inserted into the mounting hole (11), and the mounting portion (622) is provided below the gear portion (621).
  6. 6. The electric washing timer according to claim 1, characterized in that a sliding groove (12) is provided on the housing (1), a bottom portion of the program conversion plate (61) protrudes downward to form a sliding portion (614), and the sliding portion (614) is slidably engaged with the sliding groove (12) and is slidable in the sliding groove (12) as the adjusting shaft (62) rotates.
  7. 7. The electric washing timer as claimed in claim 1, wherein the left fixed reed (3) and the right fixed reed (4) are respectively provided with an abutting part (8), and the abutting parts (8) always abut against the abutting surfaces (611).
  8. 8. The electric washing timer according to claim 1, wherein the casing (1) is further provided with a driving mechanism (9) for driving the movable reed (2) to swing left and right so as to enable the contact (5) on the movable reed (2) to be switched between a contact state and an off state with the contact (5) of the left fixed reed (3) and the contact (5) of the right fixed reed (4).
  9. 9. The electric washing timer as claimed in claim 8, wherein the driving mechanism (9) comprises a driving source, an eccentric wheel (91) arranged at the power output end of the driving source, and a transmission rod (92) connected with the eccentric wheel (91), the other end of the transmission rod (92) is connected with the movable reed (2), and the driving source drives the eccentric wheel (91) to rotate and drives the transmission rod (92) to do left-right reciprocating motion, so that the movable reed (2) swings left-right.

Description

Electric washing timer Technical Field The utility model relates to the technical field of household appliances, in particular to an electric washing timer. Background The washing machine is generally provided with a washing timer, which mainly controls a washing motor to drive a washing impeller to intermittently rotate forward and backward, so as to control water flow and rotation time of the washing impeller, thereby obtaining corresponding washing effect. In order to meet different washing demands, the washing machine is usually provided with different gears such as strong washing, weak washing and the like, and the washing timer can switch the gears of the washing machine by changing the forward and reverse rotation time of the washing impeller. The structure of the existing washing timer is shown in fig. 1, and comprises a movable reed 1', a left fixed reed 2', and a right fixed reed 3', wherein a connecting rod 4' is movably arranged on the movable reed 1', and the connecting rod 4' reciprocates left and right by means of an eccentric wheel 5' and drives the movable reed 1' to swing left and right, so that a contact point on the movable reed 1' is respectively connected with a contact point of the left fixed reed 2' and a contact point of the right fixed reed 3', thereby driving a washing wave wheel to intermittently rotate forwards and reversely. The time for switching on/off the contact point on the movable reed 1 'and the contact point of the left fixed reed 2' and the contact point of the right fixed reed 3', namely, the time for forward rotation and reverse rotation of the pulsator, depends on the distance between the contact point of the movable reed 1' and the contact point of the left fixed reed 2 'and the contact point of the right fixed reed 3' when the movable reed 1 'is stationary, and the distance can be adjusted by the switching mechanism 6'. Specifically, as shown in fig. 1 to 3, the switching mechanism 6 'includes a program switching plate 61', an adjusting shaft 62', a limit cam 63' and a limit reed 64', wherein the program switching plate 61' is provided with a pair of abutting surfaces 611 'with three steps, the left fixed reed 2' and the right fixed reed 3 'are respectively elastically abutted against the abutting surfaces 611' by means of abutting portions 7', the adjusting shaft 62' is engaged with the program switching plate 61', and the program switching plate 61' is movable by rotating the adjusting shaft 62 'and the left fixed reed 2' and the right fixed reed 3 'are elastically abutted against different steps, so that the distance between the left fixed reed 2' and the right fixed reed 3 'and the movable reed 1' in relative rest can be changed, the contact time of the contact point can be changed, the time of forward and reverse rotation of the pulsator can be changed to switch the washing machine between strong washing, medium washing and weak washing, the limit cam 63 'is provided on the adjusting shaft 62' and is limited by the limit plate 64', and each step on the cam corresponding to the abutting surfaces' is provided with a limit surface, so that the left fixed reed 2 'and the right fixed reed 3' can be limited at any position on the spring reed 611. Such as the mechanical timer switch disclosed in chinese patent publication CN92215401.5 (grant publication CN 2114217U). However, due to the diversity of user demands, the washing machine needs to have more washing functions to meet the washing demands of the laundry with different materials and different dirt levels. If the washing function is added to the washing timer, the number of steps on the abutting surface 611' needs to be increased, if four washing functions are needed, four steps are needed on the abutting surface 611', and the increase of the number of steps means that the length of each step is shortened, and if the abutting parts 7' of the left fixed reed 2' and the right fixed reed 3' have a certain volume, if the abutting parts abut against the edges of the steps, the situation that the interference or the abutting positions are not in place occurs, so that the running stability of the washing machine is affected. In addition, the step length is too short to stably abut the abutting portion 7' at the central position of the step. In summary, to achieve more washing functions on a washing machine, the existing washing timer has yet to be improved. Disclosure of Invention The present utility model is directed to providing a washing timer capable of providing a washing machine with a plurality of washing functions and stably operating. The utility model solves the technical problems by adopting the technical scheme that the electric washing timer comprises a shell, a movable reed, a left fixed reed and a right fixed reed which are arranged in the shell, wherein the preset distance is kept between the contacts of the left fixed reed and the right fixed reed and the contacts of the movable reed, a conversion me