CN203320300U

CN203320300U - Draining valve tractor of washing machine

Info

Publication number: CN203320300U
Application number: CN201320347709XU
Authority: CN
Inventors: 鄢运禄; 冀金星; 占德本
Original assignee: HARBIN RISHANG ELECTRICAL Co Ltd
Current assignee: HARBIN RISHANG ELECTRICAL Co Ltd
Priority date: 2013-06-18
Filing date: 2013-06-18
Publication date: 2013-12-04
Anticipated expiration: 2023-06-18

Abstract

The utility model discloses a draining valve tractor of a washing machine. The tractor comprises a synchronous motor mounted in a motor base, a terminal support and an upper cover which are mounted at the end face of the motor base in a matching mode, as well as an output gear mounted in the synchronous motor and driven by a motor rotor through a gear-system gear; an output gear shaft is connected with a rotary part formed by a driving wheel, a transmission wheel and an output wheel; three tooth pieces axially provided with a group of pawls at the outer edge respectively are arranged at the circumferential face of the transmission wheel at intervals; one ends of the tooth pieces are equidistantly injection molded on the circumferential face of the transmission wheel; the other ends of the tooth pieces extend toward one side in an overhead mode along the circumferential face of the transmission wheel; the pawls at the outer edges of the tooth pieces are matched with ratchets at the inner edge of the output wheel; three through slots matched with three driving shafts which are equidistantly injection molded on the end face of the driving wheel are respectively radially arranged at the end faces of the tooth pieces; a crankshaft connected with a draining valve pull rod is arranged at the end face of the output wheel. The draining valve tractor of the washing machine has the advantages of simple and compact structure, reliable performance, low cost and the like.

Description

The For Drain Valve of Washing Machine tractor

Technical field

The utility model relates to a kind of For Drain Valve of Washing Machine tractor, belongs to washing machine accessory field.

Background technology

The For Drain Valve of Washing Machine tractor is the important accessory of washing machine drainage.At present, the For Drain Valve of Washing Machine tractor is many by the synchronous motor be arranged in motor base, terminal support and the upper cover of Matching installation on the motor base end face, and be arranged in synchronous motor by rotor by the output gear of gear gear's transmission, the rotatable parts that connect on output gear shaft form.The disclosed a kind of motor gear tractor for washing machine of Chinese patent 201120250243.2 for example.But due to this For Drain Valve of Washing Machine tractor that adopts the rotatable parts that formed by transfer part, runner, bent axle and main spring, not only part used is many for they, volume is large, complex structure, manufacturing cost and fault rate high, and, main spring wherein is owing to being metal material, long term exposure is in air, easy-to-rust damages, thereby affects the normal drainage performance of washing machine.

The utility model content

The purpose of this utility model is to provide that a kind of structure is simple and direct, dependable performance, kind For Drain Valve of Washing Machine tractor that cost is lower.

Its technical scheme is: a kind of For Drain Valve of Washing Machine tractor, comprise the synchronous motor be arranged in motor base, terminal support and the upper cover of Matching installation on the motor base end face, and be arranged in synchronous motor by rotor by the output gear of gear gear's transmission, be connected with rotatable parts on output gear shaft, it is characterized in that: described rotatable parts consist of driving wheel, drive and output wheel; Be interval with three outer rims on the periphery of described drive respectively axially with the gear pieces of one group of ratchet, an end of this gear piece equidistantly is injection-moulded on the periphery of drive, and the other end is along the periphery of drive to the unsettled extension of a side; Ratchet on this gear piece outer rim coordinates with the ratchet on being arranged on the output wheel inner edge, radially offers respectively three grooves that driving shaft matches with equidistant injection moulding on the driving wheel end face on the gear piece end face; The end face of output wheel is provided with the bent axle be connected with the draining valve pull bar.

Its beneficial effect is: owing to being interval with three gear pieces on the periphery of drive, gear piece one end equidistantly is injection-moulded on the periphery of drive, the other end is along the periphery of drive to the unsettled extension of a side, the gear piece outer rim is respectively axially with one group of ratchet coordinated with output wheel inner edge ratchet, radially offer the groove matched with the driving shaft of equidistant injection moulding on the driving wheel end face on the gear piece end face, therefore the crankshaft rotating on the output wheel end face to the pull bar of draining valve when the tension, open on the one hand the valve of draining valve, realize the purpose of draining; Driving shaft on driving wheel moves radially the leading section to this groove along the groove of offering on drive periphery gear piece on the other hand, cause gear piece on the drive periphery compacted and produce plastic shrinkage, ratchet on it breaks away from the engagement with ratchet, the drive slipping, thereby make the bent axle returning quickly on output wheel, close draining valve; In the time of drain shut valve, the pull bar of bent axle and draining valve recovers relaxed state, driving shaft on driving wheel makes radially to move to the rearward end of this groove in the other direction along the groove of offering on drive periphery gear piece, the gear piece of compacted generation plastic shrinkage is unfolded and reset, thereby recover ratchet on it and the engagement of output wheel inner edge ratchet.Its structure simple and compact volume is little, and few life-span of dependable performance fault is long, and cost is low and power consumption is few and energy-conservation, is specially adapted to nowadays popular DD rotary drum washing machine.

The accompanying drawing explanation

Fig. 1 is the utility model overall structure schematic diagram;

Fig. 2 is assembling schematic diagram of the present utility model;

Fig. 3 is the transmission wheel structure schematic diagram;

Fig. 4 is the driving wheel structure schematic diagram;

Fig. 5 is the output wheel structural representation;

Fig. 6 is gear piece ratchet on the drive periphery and the ratchet engagement schematic diagram on the output wheel inner edge;

Fig. 7 is that gear piece on the drive periphery is in the contraction state schematic diagram.

The specific embodiment

As shown in Figure 1, 2, a kind of For Drain Valve of Washing Machine tractor, comprise the synchronous motor 2 be arranged in motor base 1, terminal support 3 and the upper cover 6 of Matching installation on the motor base end face, and be arranged in synchronous motor by rotor by the output gear of gear gear's transmission, be connected with rotatable parts on output gear shaft.Described rotatable parts consist of driving wheel, drive and output wheel; Be interval with three outer rims on the periphery of described drive 5 and axially with the gear piece 5 ?3(of one group of ratchet 5 ?1, see Fig. 3 respectively), one end of this gear piece equidistantly is injection-moulded on the periphery of drive, and the other end is along the periphery of drive to the unsettled extension of a side.Ratchet on this gear piece outer rim coordinates with ratchet 7 ?1 on being arranged on output wheel 7 inner edges, on the gear piece end face, radially offers respectively with driving wheel 4(and sees Fig. 4) groove 5 ?2 that match of three driving shafts, 4 ?1 of equidistant injection moulding on end face; The end face of output wheel (see figure 5) is provided with the bent axle 8 be connected with the draining valve pull bar.

On driving wheel 4, offer with synchronous motor in the semicircle axis hole of rotor output gear shaft coupling combination.

Its course of work: when draining valve, during in closed condition, the pull bar of the bent axle on the tractor output wheel and draining valve is in relaxed state.When needs are opened draining valve, the rotor of synchronous motor 2 inside drives driving wheel 4 rotations that are arranged on output gear shaft by gear gear, be arranged on driving shaft on driving wheel 4 ?1 by gear piece spaced on drive 5 peripheries 5 ?groove on 3 end faces 5 ?2 drive the drives rotation, with drive periphery gear piece 5 ?ratchet on 35 ?ratchet on output wheel 7 inner edges of 1 engagement 7 ?1 transmission output wheel rotation, crankshaft rotating on output wheel to the pull bar of draining valve when the tension, open on the one hand the valve of draining valve, realize the purpose of draining, driving shaft on driving wheel moves radially the leading section to this groove along the groove of offering on drive periphery gear piece on the other hand, cause gear piece on the drive periphery compacted and produce the plastic shrinkage (see figure 7), ratchet on it breaks away from the engagement with ratchet, the drive slipping, thereby make the bent axle returning quickly on output wheel, close draining valve, in the time of drain shut valve, the pull bar of bent axle and draining valve recovers relaxed state, driving shaft on driving wheel makes radially to move to the rearward end of this groove in the other direction along the groove of offering on drive periphery gear piece, make the gear piece of compacted generation plastic shrinkage unfold the (see figure 6) that resets, thereby recover ratchet on it and the engagement of output wheel inner edge ratchet.

Claims

1. a For Drain Valve of Washing Machine tractor, comprise the synchronous motor be arranged in motor base, terminal support and the upper cover of Matching installation on the motor base end face, and be arranged in synchronous motor by rotor by the output gear of gear gear's transmission, be connected with rotatable parts on output gear shaft, it is characterized in that: described rotatable parts consist of driving wheel, drive and output wheel; Be interval with three outer rims on the periphery of described drive (5) respectively axially with the gear piece (5 ?3) of one group of ratchet (5 ?1), one end of this gear piece equidistantly is injection-moulded on the periphery of drive, and the other end is along the periphery of drive to the unsettled extension of a side; Ratchet on this gear piece outer rim coordinates with the ratchet (7 ?1) on being arranged on output wheel (7) inner edge, radially offers respectively the groove (5 ?2) matched with three driving shafts (4 ?1) of equidistant injection moulding on driving wheel (4) end face on the gear piece end face; The end face of output wheel is provided with the bent axle be connected with the draining valve pull bar.

2. a kind of For Drain Valve of Washing Machine tractor according to claim 1 is characterized in that: on described driving wheel (4), offer with synchronous motor in the semicircle axis hole of rotor output gear shaft coupling combination.