A detachable automatic dispensing device and a washing machine

Abstract

The application discloses a detachable automatic feeding device, which comprises a main cavity, a front cover installed at the front end of the main cavity, and a rear cover installed at the rear end of the main cavity, wherein the front cover is provided with a liquid outlet hole, a piston body, a piston body sealing ring and a spring are installed in the main cavity and located between the front cover and the rear cover, the piston body sealing ring is sleeved on the piston body, the spring is abutted between the rear cover and the piston body, and the movement of the piston body is driven by the elastic force of the spring, so that the laundry detergent located between the front cover and the piston body in the main cavity is discharged through the liquid outlet hole. The application can be completely extracted and cleaned, and different brands of laundry detergent or softener are prevented from being mixed together.

Description

Technical fields:

[0001] This invention relates to a detachable automatic dispensing device and a washing machine, belonging to the field of washing machine technology. Background technology:

[0002] With the rapid development of the home appliance industry, consumers have higher demands for modern home appliances. When purchasing products, users pay more attention to their intelligence and convenience, making washing machines with automatic detergent dispensing functions more popular. Currently, most washing machines on the market with automatic dispensing functions consist of a detergent dispenser, a pump, and a level sensor. The working principle is based on the centrifugal force generated by the motor's rotation to sense the load weight. The software program sets the required amount of detergent for each load level, sending a signal to the pump to dispense detergent or fabric softener. The level sensor detects the detergent level in the dispenser and issues an alarm when the level is too low, reminding the user to add more detergent.

[0003] This type of liquid extraction device cannot guarantee that the detergent in the cavity will be completely removed, leaving residual liquid. Furthermore, when users add liquid after receiving an alarm, there may be mixing issues. Mixing two different brands of laundry detergent or fabric softener can easily cause a chemical reaction, affecting the user's experience.

[0004] Therefore, it is indeed necessary to improve existing technologies to address their shortcomings. Summary of the Invention:

[0005] The present invention provides a detachable automatic dispensing device and washing machine to solve the problems existing in the prior art, which can completely extract the detergent and avoid mixing different brands of laundry detergent or fabric softener together.

[0006] The present invention adopts the following technical solution: a detachable automatic dispensing device, including a main cavity, a front cover installed at the front end of the main cavity, and a rear cover installed at the rear end of the main cavity. The front cover is provided with a liquid outlet hole. A piston body, a piston body sealing ring, and a spring are installed in the main cavity between the front cover and the rear cover. The piston body sealing ring is sleeved on the piston body, and the spring abuts against the rear cover and the piston body. The spring force drives the movement of the piston body, thereby discharging the laundry detergent in the main cavity between the front cover and the piston body through the liquid outlet hole.

[0007] Furthermore, the front cover includes a front cover body portion and a front extension portion extending rearward from the rear side surface of the front cover body portion, and the piston body and piston body sealing ring are both fitted onto the front extension portion.

[0008] Furthermore, the rear cover includes a rear cover body and a rear extension extending forward from the front side surface of the rear cover body. The front side wall of the rear cover body extends to form an annular portion between the outer peripheral wall and the rear extension. One end of the spring is installed between the rear extension and the annular portion, and the other end abuts against the piston body.

[0009] Furthermore, a stepped portion is formed in the recessed side surface of the piston body that does not abut against the spring, and a magnet is installed on the stepped portion.

[0010] Furthermore, a spring clip is integrally formed on the outer surface of the piston body, and a notch for the spring clip to extend is formed on the piston body sealing ring at a position opposite to the spring clip.

[0011] Furthermore, a sliding groove is formed on the main cavity at the position opposite to the spring buckle, and a slot is formed on one end of the sliding groove near the rear cover for the spring buckle to be inserted into.

[0012] Furthermore, a limiting structure is installed in the liquid outlet, a pipeline is sleeved on the limiting structure, a one-way valve is installed on the pipeline, and a magnetic switch is installed on the front cover near the pipeline.

[0013] Furthermore, the inner ring of the outer peripheral wall of the front cover portion is formed with a front thread portion, the inner ring of the outer peripheral wall of the rear cover portion is formed with a rear thread portion, and the outer edges of the front and rear ends of the main cavity are respectively formed with thread portions that cooperate with the front thread portion and the rear thread portion.

[0014] Furthermore, end sealing rings are provided at the connection points between the front cover and the main cavity, and at the connection points between the rear cover and the main cavity.

[0015] The present invention also adopts the following technical solution: a washing machine, characterized in that it includes the above-mentioned detachable automatic dispensing device.

[0016] The present invention has the following beneficial effects:

[0017] Firstly, it offers convenience, as the main chamber can be directly removed for liquid addition;

[0018] Secondly, it is practical. This invention can automatically add ingredients, which can improve the practicality of the product and reduce the cost for users.

[0019] Thirdly, it is ultra-clean. This invention can solve the problem of residual liquid and achieve a liquid-free effect. At the same time, users can disassemble and clean it, and can more intuitively experience the ultra-clean function of the product. Attached image description:

[0020] Figure 1 This is a partially exploded schematic diagram of the detachable automatic dispensing device of the present invention.

[0021] Figure 2 This is a schematic diagram of the front cover.

[0022] Figure 3 This is a schematic diagram of the back cover.

[0023] Figure 4 for Figure 1 A cross-sectional view after assembly.

[0024] Figure 5 This is a cross-sectional view of the detachable automatic dispensing device of the present invention. Detailed implementation method:

[0025] The invention will now be further described with reference to the accompanying drawings.

[0026] The present invention relates to a detachable automatic dispensing device, comprising a main cavity 1, a front cover 2 installed at the front end of the main cavity 1, and a rear cover 3 installed at the rear end of the main cavity 1. The front cover 2 includes a front cover body portion 20 and a front extension portion 21 extending rearward from the rear surface of the front cover body portion 20. The inner ring of the outer peripheral wall of the front cover body portion 20 has a front thread portion 22. A liquid outlet hole 23 is formed on the front cover body portion 20 at a position on one side of the front extension portion 21, penetrating the front cover body portion 20. A limiting structure 24 is installed in the liquid outlet hole 23, and an O-ring seal 25 is fitted on the limiting structure 24.

[0027] The rear cover 3 includes a rear cover body 30 and a rear extension 31 extending forward from the front side surface of the rear cover body 30. A rear threaded portion 32 is formed on the inner ring of the outer peripheral wall of the rear cover body 30. An annular portion 33 extends from the front side wall of the rear cover body 30 and is located between the outer peripheral wall and the rear extension 31.

[0028] A magnet 4, a piston body 5, a piston body sealing ring 6, a spring 7, and an end sealing ring 8 are installed in the main cavity 1, located between the front cover 2 and the rear cover 3. The piston body 5 is a hollow cylinder with a stepped portion 50 formed by a recess on the front surface of the piston body 5, and two spaced-apart spring clips 51 are integrally formed on the outer surface of the piston body 5.

[0029] After the magnet 4 is installed in the stepped portion 50, the piston body sealing ring 6 is fitted onto the piston body 5. The piston body sealing ring 6 is also hollow inside, covering the piston body 5. A notch 60 is formed on the piston body sealing ring 6 at a position opposite to the spring clip 51, allowing the spring clip 51 to protrude.

[0030] The main cavity 1 is hollow inside, and threaded portions 10 are formed on the outer edges of the front and rear ends of the main cavity 1. There are two end sealing rings 8. One end sealing ring 8 is placed in the front cover 2, and the front cover 2 is threaded to the threaded portion 10 on the outer edge of the front end of the main cavity 1 through the front threaded portion 22. The other end sealing ring 8 is placed in the rear cover 3, and the rear cover 3 is threaded to the threaded portion 10 on the outer edge of the rear end of the main cavity 1 through the rear threaded portion 32.

[0031] The front extension 21 is located in the main cavity 1 and passes through the installed magnet 4, piston body 5 and piston body sealing ring 6, wherein the outer side wall of the piston body sealing ring 6 forms a seal with the inner side wall of the main cavity 1, and the inner side wall of the piston body sealing ring 6 forms a seal with the front extension 21.

[0032] Spring 7 is located in the main cavity 1. One end of spring 7 is installed between the rear extension 31 and the annular part 33, and the other end of spring 7 abuts against the rear side wall of piston body 5.

[0033] A groove (not shown) is formed on the main cavity 1 at a position opposite to the spring clip 51, and a slot 12 is formed on one end of the groove near the rear cover for the spring clip 51 to be inserted into.

[0034] A pipe 9 is fitted onto the limiting structure 24, and a one-way valve 10 is installed on the pipe 9. A magnetic switch 11 is installed on the front cover 2 near the pipe 9. When the piston body 5 is pushed to the position of the front cover 2, the laundry detergent in the main cavity 1 is in a state of almost being consumed. At this time, the magnet 4 and the magnetic switch 11 can generate a signal to prompt the user to add liquid.

[0035] The working principle of this invention, a detachable automatic dispensing device, is as follows:

[0036] When liquid needs to be added: unscrew the front cover 2, take out the front cover 2, push the front extension 21 on the front cover 2 against the piston body 5 towards the rear cover 3, push it to the bottom, when the spring clip 51 on the piston body 5 is locked at the latch 12 of the main cavity, at this time liquid can be added into the main cavity 1, after filling it, screw the front cover 2 back on.

[0037] When the automatic dispensing device of the present invention is placed in the detergent dispenser of the washing machine, due to the snap-fit ​​structure (not shown) at the rear of the detergent dispenser, the snap-fit ​​structure on the detergent dispenser interferes with the spring snap on the piston body 5 of the automatic dispensing device of the present invention, which pushes the spring snap on the piston body 5 inward. As the snap-fit ​​is unlocked, the piston body 5 is pushed forward by the rear spring 7, and the laundry detergent can be pushed forward by the spring 7. When the one-way valve 10 is energized, the liquid extraction function can be realized.

[0038] When the piston body 5 contacts the front cover 2, it is in a vacuum state. At this time, the piston body 5 and the front cover 2 are completely in contact, and the detergent will be squeezed out from the liquid outlet on the front cover 2, achieving the effect of no residual liquid. At the same time, the magnet 4 inside the piston body 5 is also in the position to sense the magnetic switch 11, and the magnetic switch 11 is turned on, prompting the user that liquid needs to be added.

[0039] When users want to switch laundry detergents, they can remove the automatic dispensing device, unscrew the front and back caps, clean them, and then reassemble them. This can solve the problem of unpleasant odors caused by mixing two different laundry detergents.

[0040] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be considered within the scope of protection of the present invention.

Claims

1. A detachable automatic dispensing device, characterized in that: The system includes a main cavity (1), a front cover (2) installed at the front end of the main cavity (1), and a rear cover (3) installed at the rear end of the main cavity (1). The front cover (2) is provided with a liquid outlet (23). A piston body (5), a piston body sealing ring (6), and a spring (7) are installed in the main cavity (1) between the front cover (2) and the rear cover (3). The piston body sealing ring (6) is sleeved on the piston body (5). The spring (7) abuts against the rear cover (3) and the piston body (5). The movement of the piston body (5) is driven by the elastic force of the spring (7), thereby discharging the laundry detergent in the main cavity (1) between the front cover (2) and the piston body (5) through the liquid outlet (23). A spring clip (51) is integrally formed on the outer surface of the piston body (5), and a notch (60) for the spring clip (51) to extend is formed on the piston body sealing ring (6) at a position opposite to the spring clip (51). A groove is formed on the main cavity (1) at the position opposite to the spring buckle (51), and a slot (12) is formed on one end of the groove near the rear cover for the spring buckle (51) to be inserted into.

2. The detachable automatic dispensing device as described in claim 1, characterized in that: The front cover (2) includes a front cover body (20) and a front extension (21) extending rearward from the rear side surface of the front cover body (20). The piston body (5) and the piston body sealing ring (6) are both fitted on the front extension (21).

3. The detachable automatic dispensing device as described in claim 2, characterized in that: The rear cover (3) includes a rear cover body (30) and a rear extension (31) extending forward from the front side surface of the rear cover body (30). An annular portion (33) extends from the front side wall of the rear cover body (30) and is located between the outer peripheral wall and the rear extension (31). One end of the spring (7) is installed between the rear extension (31) and the annular portion (33), and the other end abuts against the piston body (5).

4. The detachable automatic dispensing device as described in claim 1, characterized in that: The piston body (5) has a stepped portion (50) formed in the recessed side surface that does not abut against the spring (7), and a magnet (4) is installed on the stepped portion (50).

5. The detachable automatic dispensing device as described in claim 4, characterized in that: A limiting structure (24) is installed in the liquid outlet (23), and a pipe (9) is sleeved on the limiting structure (24). A one-way valve is installed on the pipe (9), and a magnetic switch (11) is installed on the front cover (2) near the pipe (9).

6. The detachable automatic dispensing device as described in claim 3, characterized in that: The inner ring of the outer peripheral wall of the front cover (20) is formed with a front thread (22), the inner ring of the outer peripheral wall of the rear cover (30) is formed with a rear thread (32), and the outer edges of the front and rear ends of the main cavity (1) are respectively formed with threaded portions (10) that cooperate with the front thread (22) and the rear thread (32).

7. The detachable automatic dispensing device as described in claim 1, characterized in that: An end sealing ring (8) is provided at the position where the front cover (2) is connected to the main cavity (1) and at the position where the rear cover (3) is connected to the main cavity (1).

8. A washing machine, characterized in that: Includes the detachable automatic dispensing device as described in any one of claims 1-7.

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