CN2152835Y

CN2152835Y - Automatic flushing device for toilet

Info

Publication number: CN2152835Y
Application number: CN 93214408
Authority: CN
Inventors: 张永江
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-06-02
Filing date: 1993-06-02
Publication date: 1994-01-12
Anticipated expiration: 2003-06-02

Abstract

The utility model relates to an automatic flushing device for a toilet, comprising a push-button type automatic closing valve 1, a push rod 2, a valve starting mechanism 3, a pull rope 4, a foot board 6 and a fine motion mechanism 5 of the foot board. The foot board 6 is horizontally installed on both ends of a urinal (pit) and is connected with the pull rope through the fine motion mechanism of the foot board. The other end of the pull rope is wound on the ratchet wheel or the shaft of the valve starting mechanism. The valve starting mechanism is composed of an energy-storing spring, the ratchet wheel, a cam and a speed reducer which are arranged on the same shaft. The circumference of the cam is pressed against the push-button of the automatic closing valve by the push rod. The utility model is especially suitable for matching with the existing flushing device which is provided with a push-button type automatic closing valve. The utility model has the advantages of immediate water discharge after a user leaves and time delay closing.

Description

Automatic flushing device for toilet

The utility model relates to a kind of mode of riding that adopts and controls the lavatory automatic flushing device of lavatory with the self-closing joint door of push button.

Existing lavatory flushometer is that the self-closing joint door of push button is installed on jet water spout mostly, presses button to wash by water after an action of the bowels, looses one's grip and then closes voluntarily, and this device is owing to need manually bath, exist unhygienic or forget the deficiency of bath easily, and the bath time is difficult to setting.Many foot-operated lavatories automatic flushing device is also arranged, as Chinese patent CN2104254U, then open the water valve bath by stay cord when the people sets foot on foot rest, the people leaves the back water valve and closes voluntarily under the effect of return spring, and this device will manually be washed by water and be changed foot-operated bath into, though solved hygienic issues, but the bath time is equivalent to the time that the people goes to toilet, and causes tap water to waste in a large number, and the bath while going to toilet, water easily splashes on the person, thereby is worthless.

Based on above-mentioned the deficiencies in the prior art, the purpose of this utility model provides a kind of big or small urinal that is suitable for, foot-operated bath, when leaving foot rest, the people just opens water valve, bath time adjustable lavatory automatic flushing device, both health, easy to use again, using water wisely.Make the displacement of foot rest be reduced to minimum degree simultaneously.

Major technique solution of the present utility model is that this device comprises foot rest 6, stay cord 4, the self-closing joint door 1 of push button, foot rest micromotion mechanism 5, joint door starter mechanism 3; Foot rest 6 levels are installed on the ground at urinal (hole) two ends, link to each other with stay cord 4 by foot rest micromotion mechanism 5, and the stay cord other end is wrapped on the ratchet 15 or axle 18 of joint door starter mechanism; Joint door starter mechanism 3 is by the energy-storaging spring 14 that is arranged on the same axle 18, and ratchet 15, cam 17 and deceleration device are formed, and the wheel week of cam withstands on the button of the self-closing joint door 1 of push button by push rod 2.Main and the supporting use of the self-closing joint door of existing push button of this device.

Operating principle of the present utility model is: when the people sets foot on foot rest 6, pedal moves down, make stay cord 4 upwards tighten up big displacement by foot rest micromotion mechanism 5, driving the rotation of ratchet 15 positive directions snaps in the cotter way of cam 17, this moment, cam did not rotate, push rod 2 is positioned on the recessed circle of cam 17, and energy-storaging spring 14 reverses accumulation of energy simultaneously.When the people leaves pedal, tension force on the stay cord disappears, ratchet is oppositely side's rotation under the effect of energy-storaging spring, drive cam 17 rotations by ratchet pin 16, push rod 2 slides on week at cam, when push rod withstands on the dome, self-closing joint door button is stressed, open the water valve bath, rotate to push rod up to cam and be positioned at the recessed round roof pressure of locating just to remove to self-closing joint door button, stop automatically washing by water.Can set the suitable bath time by design and control ratchet speed reversal (being the cam rotary speed) to cam dome shape, after the people leaves, the reverse torsion of energy-storaging spring 14 is bigger, will certainly make the cam fast rotational, influence bath effect and application life, one deceleration device can be set make the rotary speed of cam slow down, with the length of control bath time.

With the supporting use of the self-closing joint door of this device and push button, have and to realize the lavatory auto-flushing by any power, and bath is to carry out after the people leaves pedal, advantages such as the bath time also can be set on demand, closes automatically then, and the foot rest displacement is less, and have easy to use, sanitary water-saving, simple in structure, the characteristics of dependable performance.Especially can need existing lavatory flushometer is done bigger transformation from the supporting use of Men Jiemen with present a large amount of lavatory push buttons that use, applicability be stronger.

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is a principle schematic of the present utility model;

Fig. 2 is a foot rest micromotion mechanism schematic diagram;

Fig. 3 is the structural representation of joint door starter mechanism;

Fig. 4 is that the A of Fig. 3 is to view;

Fig. 5 is the structural representation of the another kind of embodiment of joint door starter mechanism;

Fig. 6 is that the A of Fig. 5 is to view.

As shown in Figure 1, foot rest 6 is installed in the two ends in urinal (hole), make and just in time step down on the foot rest when people goes to toilet, act on power the stretching on the foot rest 6 by foot rest micromotion mechanism 5 control stay cords 4, stay cord 4 should adopt finer wire to reduce elastic deformation, again by stay cord 4 control joint door starter mechanisms 3, the unlatching of joint door starter mechanism by push rod 2 control self-closings joint doors 1, close.

Specifically installing and using in the process, the displacement of foot rest should be the smaller the better, but because the flexible of stay cord is to lean on the displacement of pedal to realize, and the displacement of stay cord can not be too little, otherwise the work of uncontrollable joint door starter mechanism.For these reasons, the utility model has designed foot rest micromotion mechanism 5, make foot rest that a less displacement only need be arranged, then can make stay cord have a bigger displacement to go control joint door starter mechanism operate as normal, essence is exactly that the displacement of stay cord is strengthened.Its concrete structure as shown in Figure 2, foot rest a end is hinged with ground, other end b end links to each other with lever 8, balance pivot 9 is provided with near the b end, and the lever other end is swivel nut 11 fixedly, and rotary screw 10 passes swivel nut, in the rotary screw lower end bull wheel 12 is arranged, stay cord 4 is wrapped on the bull wheel.Below foot rest, also be provided with return spring 7.When the people sets foot on pedal, on the pedal less displacement and bigger active force by leverage after, make nut that bigger displacement and less action force be arranged in vertical direction, swivel nut moves up along screw rod, the rotation of drive screw rod, the bull wheel that is fixed on the screw rod also rotates, and tightens up stay cord, the displacement of hence one can see that stay cord can be satisfied the needs of joint door starter mechanism fully much larger than the displacement of pedal.After the people left, pedal unloaded power, and pedal resets under the return spring effect, and in like manner stay cord loosens reinstatement.

In the utility model, two kinds of most preferred embodiments have been proposed joint door starter mechanism 3.

Fig. 3, joint door starter mechanism shown in Figure 4 are to adopt friction eceleration, wherein energy-storaging spring 14, ratchet 15, cam 17 are arranged on the same axle 18, axle 18 is fixed, ratchet, cam and axle are slidingly matched, can pivot, energy-storaging spring one end and baffle plate 13 are affixed, the other end links to each other with ratchet 15, stay cord 4 is wrapped in the groove of ratchet, ratchet is connected by ratchet pin 16 with cam, the wheel week of cam withstands on the push rod 2, removes to control the self-closing button that saves door 1 by push rod, also the button and the push rod of self-closing joint door can be made of one.Deceleration device adopts friction eceleration, is made up of stop skin 19 and adjustment bolt 20, and the skin of stopping acts on the axle of cam.Dome shape that what deserves to be mentioned is cam 17 is not limited to Fig. 4, shape shown in Figure 6, can make different shapes by the needs of production technology, can be a dome, also can be two above domes.

Second embodiment such as Fig. 5, shown in Figure 6 of joint door starter mechanism, stay cord 4 is wrapped on the axle 18, energy-storaging spring 14 1 ends are fixed on the baffle plate 13, the other end is connected with ratchet 15, ratchet 15 links to each other by ratchet pin 16 with cam 17, its axis 18 is rotary, and ratchet is that key cooperates with axle, and cam is to be slidingly matched with axle.The structure of reducing gear is at an end of axle 18 gear 21 to be installed, a generating gear 22 and gear 21 engagements are arranged, piston 23 is installed in bar generating gear upper end, and by the upper and lower motion of bar shaped gear drive piston, there are choke valve 25 and steam vent 28, stage clip 26 in piston cylinder 24 bottoms, adjust nut 27.

The operating principle of ratchet, cam, energy-storaging spring, axle, stay cord is with aforementioned, in the operating principle of this description reducing gear, when stay cord 4 tightens up, axle 18 driven gears 21 rotate, the bar generating gear 22 that is meshed with it moves up, and drives piston and pushes piston cylinder, and air in the piston cylinder is discharged.After stay cord unloads power, axle reverse rotation under the energy-storaging spring effect, driving the bar generating gear moves down, extract piston out piston cylinder, owing to the air in the apply piston of choke valve can only slowly enter, therefore, the speed that the bar generating gear moves down is obstructed, the corresponding speed reversal of axle that makes slows down, that is the rotating speed of cam slows down, and plays the effect of deceleration.

Claims

1, a kind of lavatory automatic flushing device, comprise foot rest (6), stay cord (4), the self-closing joint door of push button (1), it is characterized in that: this device also comprises foot rest micromotion mechanism (5), joint door starter mechanism (3), foot rest (6) level is installed on the ground at urinal (hole) two ends, link to each other with stay cord by the foot rest micromotion mechanism, the stay cord other end is wrapped on the ratchet (15) or axle (18) of joint door actuation mechanism, joint door starter mechanism is by the energy-storaging spring (14) that is arranged on the same axle, ratchet (15), cam (17) and deceleration device are formed, and the wheel week of cam withstands on the button of the self-closing joint door of push button by push rod (2).

2, device according to claim 1, it is characterized in that: energy-storaging spring (14) one ends are fixed in baffle plate (13), the other end then is connected with ratchet (15), stay cord (4) is wrapped in the groove of ratchet (15), ratchet is connected by ratchet pin (16) with cam, its axis (18) is fixed, and ratchet and cam and axle are slidingly matched.

3, device according to claim 2 is characterized in that: deceleration device is a friction eceleration, is made up of stop skin and adjustment nut, and the skin of stopping acts on the axle of cam (12).

4, device according to claim 1, it is characterized in that: stay cord (4) is wrapped on the axle (18), energy-storaging spring one end is fixed in plate washer (17), the other end is connected with ratchet (15), ratchet links to each other by ratchet pin with cam, its axis is rotating, and ratchet is that key cooperates with axle, and cam is to be slidingly matched with axle.

5, device according to claim 4, it is characterized in that: the structure of deceleration device is installed gear (21) for the end at axle (18), a generating gear (22) and gear (21) engagement are arranged, piston (23) is installed in bar generating gear upper end, by bar shaped gear drive piston up-down, choke valve (25) and steam vent (28) are arranged at piston cylinder (24) bottom.

6, device according to claim 1, it is characterized in that: the foot rest micromotion mechanism is made up of return spring (7), lever (8), swivel nut (11), rotary screw (10), bull wheel (12) etc., lever one termination foot rest (6), the other end is fixed on the swivel nut, be installed with rotary screw in the middle of the swivel nut, at rotary screw lower end fixed pulling rope wheel, stay cord (4) is wrapped on the bull wheel.