CN2921064Y - Water-saving fully automatic washing machine - Google Patents

Abstract

Disclosed is a water-saving automatic washing machine, comprising a cabinet, an external barrel, a dehydration barrel with an open mouth at the upper end, a motor and a decelerating clutch. The external barrel is installed in the inner cabinet, a damping device consists of a hanger rod and a longitudinal shrinking spring, the upper end of the hanger rod is installed in the internal wall of the cabinet through a boom socket, a supporting frame is provided at the external wall of the external barrel, the hanger rod get through the supporting frame, the longitudinal shrinking spring is installed between the tail end of the hanger rod and the supporting frame. A drainage outlet is provided at the bottom of the external barrel, a balance ring is connected to the upper end of the dehydration barrel, a gravity sensor is installed on the hanger rod, the gravity sensor consists of a metal elastic body and a strain gage, the metal elastic body is fixed with the hanger rod and the strain gage is combined with the metal elastic body. The strain gage is connected with an electric program controller by electricity, which is applied to calculate the mass of the external barrel according to the signal of the strain gage, and to control the water volume according to the mass, the output of the electric program controller is connected with a water inlet valve.

Description

Water-saving fully automatic washing machine

(1) Technical field

The utility model relates to a water-saving fully automatic washing machine.

(2) Background technology

At present, the common type full-automatic pulsator type washing machine for household use has a basic structure as shown in Figure 1: an outer tub 11 is arranged in the washing machine cabinet 1, the outer tub is suspended with a shock absorbing device 8, and a rotatable bucket is arranged in the outer tub. Dehydration barrel 7, the periphery of dehydration barrel is provided with holes 10 of different sizes, and the bottom of dehydration barrel is also provided with drainage hole 16. Wave wheel 5 is installed in the dehydration bucket. During washing, motor 15 drives the pulsator by belt and deceleration clutch 14, and the clothing in the bucket rotates and turns over, and under the effect of detergent, the stains in the clothing are removed. After washing, drain through the drain port 4 and the drain valve 3 on the outer tub. When most of the water has been discharged, the motor drives the dehydration tub to rotate through the transmission mechanism. Under the action of centrifugal force, the water contained in the clothes passes through the dehydration process. The holes around the barrel are discharged into the outer barrel, and then discharged through the drain port and the drain valve. The defect of this washing machine is: because there are holes 10 around the dehydration bucket and drain holes 16 at the bottom, the inside and outside of the dehydration bucket are connected. In the bucket, in fact, only the water in the dehydration bucket participates in the soaking and washing of the clothes, and the water between the outer bucket and the dehydration bucket causes waste. At the same time, it also reduces the concentration of detergent, resulting in waste of detergent, and increases the consumption of detergent. pollution of the environment.

The water level of this type of washing machine is controlled in the following manner: there is an air chamber 6 at the bottom of the outer tub of the washing machine, one end of the air chamber communicates with the outer tub, and the other end is connected with the water level switch 12 through a hose 9 . When water enters, the water seals and compresses the air in the air chamber, as shown in Figure 2, the compressed air enters the sealed air bag 18 of the air pressure switch through the hose, and pushes the rubber gasket 19 to move, and the rubber gasket pushes the movable contact 20 , the movable contact 20 is in contact with the fixed contact 21 to realize circuit closure, and the electronic program controller 13 sends a signal to the water inlet valve according to the detected signal change to control whether to continue water intake. Therefore, in the washing machine of traditional structure, there must be water in the outer tub to control the water level, and the actual water used for laundry is more than required.

(3) Contents of the invention

In order to solve the disadvantages of the existing ordinary automatic washing machine, such as complex water level adjustment device, waste of cost, and environmental pollution, a water-saving type with simple structure, economical use, and environmental protection that can control the water level without water in the outer bucket is provided. automatic washing machine.

For this reason the utility model adopts following technical scheme:

A water-saving fully automatic washing machine, comprising a box body, an outer barrel, a dehydration barrel with an open upper end, a motor and a speed reduction clutch; the outer barrel is installed in the box body through a shock absorbing device, and the shock absorbing device includes a suspension Rod, longitudinal spring, the upper end of the boom is installed on the inner wall of the box through the boom seat, the outer wall of the outer barrel is provided with a support frame, the boom runs through the support frame, and the longitudinal spring is installed on the tail end of the boom and supports Between the racks; the bottom of the outer bucket is provided with a drain; the upper end of the dehydration bucket is connected with a balance ring, and a gravity sensor is installed on the suspension rod, and the gravity sensor includes a metal elastic body and a resistance strain gauge. The metal elastic body is fixedly connected with the suspender, the resistance strain gauge is matched with the metal elastic body, and the resistance strain gauge is used to calculate the weight of the outer bucket according to the signal of the resistance strain gauge, and control the water volume according to the weight. The device is electrically connected, and the output of the electronic program controller is connected to the water inlet valve.

Further, the connection part of the dehydration bucket close to the balance ring is provided with a drainage hole, and the outer bucket and the dehydration bucket are connected through the drainage hole.

Further, the gravity sensor is installed at the upper end of the suspender or, alternatively, at the lower end of the suspender.

A spring seat is provided between the support frame and the tail end of the boom, and the spring is installed in the spring seat.

The gravity sensor is installed on the suspension rod between the support frame and the spring seat.

Compared with the existing technology, the utility model has the following effects: there is no leakage hole at the bottom of the dehydration bucket, and the periphery of the lower part of the dehydration bucket is sealed without a dehydration hole, but a water leakage hole is provided at the connection between the upper part of the dehydration bucket and the balance ring, so that During the cleaning process, only the dehydration bucket has water to participate in the soaking and washing of the clothes, and the outer bucket has no water, which avoids the waste of water resources, reduces the concentration of detergent, saves costs, and reduces the impact on the environment. Pollution; a gravity sensor is installed on the boom of the shock absorbing device, and the change of the water level of the washing machine causes the weight of the outer tub to change, so that the metal elastic body installed on the shock absorbing device is subjected to different pressures, and the resistance strain gauge in contact with the metal elastic body The resistance value of the resistance changes, which causes the terminal voltage of the resistance strain gauge and the passing current to change. Through the electronic program controller, the signal is processed to control the on/off of the water inlet valve to achieve the function of controlling the water level. The structure is simple and the operation is simple. convenient.

(4) Description of drawings

Fig. 1 is the structural representation of existing common type fully automatic washing machine;

Fig. 2 is the structural schematic diagram of the water level switch of existing common type full-automatic washing machine;

Fig. 3 is a schematic structural view of the utility model water-saving fully automatic washing machine;

Fig. 4 is a structural representation of gravity sensor of the present invention and installation;

Fig. 5 is another structural schematic diagram of the gravity sensor of the present invention and its installation.

(5) Specific implementation methods

Embodiment one:

Referring to accompanying drawings 3 and 4, a water-saving fully automatic washing machine includes a casing 1, an outer tub 11, a dehydration tub 7 with an open upper end, a motor 15 and a deceleration clutch 14; Installed in the box, the shock absorbing device includes a boom 24 and a longitudinal spring 26, the upper end of the boom is installed on the inner wall of the box through the boom seat, the outer wall of the outer barrel is provided with a support frame, and the boom runs through the The support frame, the longitudinal spring is installed between the tail end of the boom and the support frame; the bottom of the outer bucket is provided with a drain port 4; the upper end of the dehydration bucket is connected with a balance ring 2, and a gravity Sensor, the gravity sensor includes a metal elastic body 28, a resistance strain gauge 29, the metal elastic body is fixedly connected with the suspension rod, the resistance strain gauge is matched with the metal elastic body, and the resistance strain gauge is used for according to the resistance The signal of the strain gauge calculates the weight of the outer tub, and is electrically connected to the electronic program controller 13 that controls the water volume according to the weight, and the output of the electronic program controller is connected to the water inlet valve. A drain hole 10 is provided at the connecting part of the dehydration bucket close to the balance ring, and the outer bucket and the dehydration bucket are communicated through the drain hole. The gravity sensor is installed at the lower end of the suspension rod.

Embodiment 2: The gravity sensor is installed on the upper end of the boom, and the others are the same as Embodiment 1.

Embodiment 3: Referring to accompanying drawings 3 and 5, a spring seat 25 is provided between the support frame and the tail end of the boom, the spring is installed in the spring seat, and the gravity sensor is installed between the support frame and the spring seat on the boom. Others are the same as embodiment one.

Claims (6)

1, a kind of water saving type full automatic washing machine includes casing, outer bucket, uncovered dehydration barrel, motor and the speed-reducing clutch in upper end; Described outer bucket is installed in the casing by damping device, described damping device includes suspension rod, longitudinal spring, described suspension rod upper end is installed in cabinet wall by gooseneck bracket, described outer bucket outer wall is provided with bracing frame, suspension rod runs through support frame as described above, and described longitudinal spring is installed between suspension rod tail end and the bracing frame; Described outer barrel bottom is provided with water discharge outlet; Described dehydration barrel upper end is connected with gimbal, it is characterized in that: on the described suspension rod gravity sensor is installed, described gravity sensor includes metallic elastic body, resistance strain gage, described metallic elastic body and suspension rod are affixed, described resistance strain gage cooperates with the metallic elastic body, described resistance strain gage and the outer bucket of the calculated signals weight that is used for according to resistance strain gage, and be electrically connected according to the electronic program controller of this Weight control water yield, the output of described electronic program controller is connected with water intaking valve.

2, according to the water saving type full automatic washing machine of claim 1, it is characterized in that described dehydration barrel is provided with osculum near the connecting portion of gimbal, described outer bucket, dehydration barrel are communicated with by described osculum.

3,, it is characterized in that gravity sensor is installed in the upper end of suspension rod according to the water saving type full automatic washing machine of claim 2.

4, water saving type full automatic washing machine according to claim 2 is characterized in that gravity sensor is installed in the lower end of suspension rod.

5, according to the described water saving type full automatic washing machine of one of claim 1-2, it is characterized in that being provided with spring base between support frame as described above and the suspension rod tail end, described spring is installed in the described spring base.

6, water saving type full automatic washing machine according to claim 5 is characterized in that gravity sensor is installed on the suspension rod between bracing frame and the spring base.