A detergent adding pump for washing machine

Abstract

The present invention discloses a detergent adding pump for a washing machine, comprising a top cover and a bottom cover. The top cover has a positioning ring on its upper end face, a motor disposed within the positioning ring, a protective cover disposed on the outside of the motor, the protective cover being snap-connected to the positioning ring, a limiting ring disposed within the bottom cover, a hose 1 and a hose 2 disposed within the limiting ring, four rollers rotatably connected within the limiting ring, the four rollers evenly distributed within the limiting ring, a turntable disposed within the limiting ring, the turntable being located inside the rollers, a cavity 1 and a cavity 2 disposed on the lower end face of the bottom cover, a water outlet disposed on the side face of the bottom cover, a housing disposed on one side of the cavity 1 and cavity 2 on the lower end face of the bottom cover, a one-way valve 1 and a one-way valve 2 disposed within the housing, and a water inlet pipe 1, a water inlet pipe 2, and a water outlet pipe disposed below the bottom cover. The present invention has the advantages of: pipes that are not easily clogged, noiseless during use, easy pipe replacement, precise flow control, and low energy consumption.

Description

Technical Field

[0001] The present invention relates to the technical field of adding pumps, in particular to a detergent adding pump for a washing machine. Background Art

[0002] Currently, the detergent adding system for washing machines in the market generally adopts piston pump and gear pump system. The detergent is transferred from the detergent box to the cleaning system of the washing machine through the reciprocating action of the piston or the mechanical squeezing action of the gear.

[0003] Because laundry detergent is viscous, and detergent remaining in the pipes for a long time will age and solidify, causing blockage in the adding system pipes, reducing the detergent addition flow rate and deteriorating the detergent flow control accuracy; using a gear pump to add detergent will generate noise during the addition process; and the detergent addition pipes in the existing detergent addition system are difficult to replace, making them inconvenient to maintain and repair. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a washing machine detergent adding pump with low energy consumption and pipeline that is not easy to be blocked, makes no noise during use, is easy to replace, has precise flow control, and is not easy to replace.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is as follows: a detergent adding pump for a washing machine, comprising a top cover and a bottom cover, the top cover and the bottom cover are snap-connected, a positioning ring is provided on the upper end surface of the top cover, a motor is provided in the positioning ring, a protective cover is provided on the outside of the motor, the protective cover is snap-connected with the positioning ring, a limiting ring is provided in the bottom cover, a hose 1 and a hose 2 are provided in the limiting ring, the hose 1 and the hose 2 are symmetrically distributed in the limiting ring, both ends of the hose 1 and the hose 2 are exposed to the limiting ring, the hose 1 and the hose 2 are both fitted with the inner wall of the limiting ring, a roller is rotatably connected in the limiting ring, there are four rollers, the four rollers are evenly distributed in the limiting ring, the rollers are fitted with the hose 1 and the hose 2, the limiting ring A turntable is provided in the position ring, and the turntable is located inside the roller, and the turntable is tangent to the four rollers. The output end of the motor is connected to the turntable, and the lower end surface of the bottom cover is provided with cavity one and cavity two, and the side of the bottom cover is provided with a water outlet. A shell is provided on one side of cavity one and cavity two on the lower end surface of the bottom cover, and the shell is snap-connected with the lower end surface of the bottom cover. A one-way valve one and a one-way valve two are provided in the shell, and a water inlet pipe one, a water inlet pipe two and a water outlet pipe are provided below the bottom cover. The water inlet pipe one and the water inlet pipe two are connected with hose one and hose two respectively through an elbow, and the water inlet pipe one and the water inlet pipe two are connected with cavity one and cavity two respectively, and the water outlet pipe is connected with the water outlet of the shell, and the one-way valve one and the one-way valve two are connected with hose one and hose two respectively through an elbow.

[0006] The advantages of the present invention over the prior art are: the detergent adding pump for the washing machine adopts easily replaceable hose 1 and hose 2 for delivery, thereby extending the service life of the entire adding pump; adopts relatively independent delivery pipelines, the laundry liquid does not come into contact with other accessories of the pump, and the system is kept clean for a long time; different liquids in cavity 1 and cavity 2 are added by the forward and reverse rotation of the motor, thereby reducing energy consumption; the liquid is transmitted by squeezing the hose by a roller, and there are no mechanical structures such as gears and pistons, so the system will not generate noise; the diameters of hose 1 and hose 2 are fixed, thereby ensuring the accuracy of the flow rate of added detergent and will not change due to system wear; clean water can be used to regularly backwash the system to clean the residual detergent in hose 1 and hose 2, thereby avoiding clogging of the pipeline.

[0007] As an improvement, the two ends of the hose 1 and the hose 2 exposed from the limiting ring are connected to the bottom cover through buckles, and the hose 1 and the hose 2 are fixed by the buckles, making it easy to replace the hose 1 and the hose 2.

[0008] As an improvement, the water inlet pipe 1, water inlet pipe 2 and water outlet pipe are connected to the bottom cover through pipe clamps, and the pipe clamps fix the positions of the water inlet pipe 1, water inlet pipe 2 and water outlet pipe.

[0009] As an improvement, a sealing ring is provided in the shell to enhance the sealing performance and avoid liquid leakage.

[0010] As an improvement, a reinforcing rib is provided inside the bottom cover, and the reinforcing rib connects the bottom cover and the limiting ring. There are four reinforcing ribs, and the four reinforcing ribs are evenly distributed to enhance the strength of the bottom cover.

[0011] As an improvement, a positioning column is provided on the lower end surface of the bottom cover to facilitate the fixation of the pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is an exploded view of a detergent adding pump for a washing machine according to the present invention.

[0013] Figure 2 The present invention is a top view of a bottom cover of a detergent adding pump for a washing machine.

[0014] Figure 3 The present invention is a bottom view of a bottom cover of a detergent adding pump for a washing machine.

[0015] Description of the drawings: 1. Top cover, 2. Bottom cover, 3. Positioning ring, 4. Motor, 5. Protective cover, 6. Limiting ring, 7. Hose 1, 8. Hose 2, 9. Roller, 10. Turntable, 11. Cavity 1, 12. Cavity 2, 13. Water outlet, 14. Shell, 15. One-way valve 1, 16. One-way valve 2, 17. Water inlet pipe 1, 18. Water inlet pipe 2, 19. Water outlet pipe, 20. Elbow, 21. Buckle, 22. Pipe clamp, 23. Reinforcement rib, 24. Positioning column. DETAILED DESCRIPTION

[0016] The present invention will be described in further detail below with reference to the accompanying drawings.

[0017] 4 and 5. The top cover 1 and the bottom cover 2 are connected in a snap-fit ​​manner. A positioning ring 3 is provided on the upper end surface of the top cover 1. A motor 4 is provided in the positioning ring 3. A protective cover 5 is provided on the outside of the motor 4. The protective cover 5 is clamped with the positioning ring 3. A limiting ring 6 is provided in the bottom cover 2. A hose 1 7 and a hose 2 8 are provided in the limiting ring 6. The hose 1 7 and the hose 2 8 are symmetrically distributed in the limiting ring 6. Both ends of the hose 1 7 and the hose 2 8 are exposed to the limiting ring 6. The hose 1 7 and the hose 2 8 are both fitted with the inner wall of the limiting ring 6. A roller 9 is rotatably connected in the limiting ring 6. There are four rollers 9, and the four rollers 9 are evenly distributed in the limiting ring 6. The rollers 9 are fitted with the hose 1 7 and the hose 2 8. A turntable 10 is provided in the limiting ring 6. The turntable 10 is located inside the roller 9. The disc 10 is tangent to the four rollers 9, the output end of the motor 4 is connected to the turntable 10, the lower end surface of the bottom cover 2 is provided with a cavity 11 and a cavity 2 12, the side of the bottom cover 2 is provided with a water outlet 13, the lower end surface of the bottom cover 2 cavity 11 and cavity 2 12 is provided with a shell 14 on one side, the shell 14 is clamped with the lower end surface of the bottom cover 2, a one-way valve 15 and a one-way valve 2 16 are provided in the shell 14, and an inlet is provided below the bottom cover 2. Water pipe 1 17, water inlet pipe 2 18 and water outlet pipe 19, the water inlet pipe 17 and water inlet pipe 2 18 are connected to hose 1 7 and hose 2 8 respectively through elbow 20, the water inlet pipe 1 17 and water inlet pipe 2 18 are connected to cavity 1 11 and cavity 2 12 respectively, the water outlet pipe 19 is connected to the water outlet 13 of the shell 14, and the one-way valve 15 and one-way valve 2 16 are connected to hose 1 7 and hose 2 8 respectively through elbow 20.

[0018] The two ends of the hose 1 7 and the hose 2 8 exposed from the limiting ring 6 are connected to the bottom cover 2 through buckles 21 .

[0019] The water inlet pipe 17 , the water inlet pipe 2 18 and the water outlet pipe 19 are connected to the bottom cover 2 via a pipe clamp 22 .

[0020] A sealing ring is provided in the housing 14 .

[0021] The bottom cover 2 is provided with reinforcing ribs 23 , which connect the bottom cover 2 and the limiting ring 6 . There are four reinforcing ribs 23 , which are evenly distributed.

[0022] A positioning column 24 is provided on the lower end surface of the bottom cover 2 .

[0023] The working principle of the present invention is as follows: When the detergent addition pump for a washing machine is in use, detergent is stored in cavity 1 and softener is stored in cavity 2. When the motor rotates forward, the motor drives the turntable forward, which in turn drives the roller to rotate. The roller squeezes hose 1, allowing the detergent in cavity 1 to enter the housing through water inlet pipe 1, elbow, and one-way valve 1. The detergent entering the housing is then delivered to the water outlet through the water outlet pipe, thereby adding detergent. When the motor rotates reversely, the motor drives the turntable reversely, which in turn drives the roller to rotate. The roller squeezes hose 1, allowing the softener in cavity 2 to enter the housing through water inlet pipe 2, elbow, and one-way valve 2. The softener entering the housing is then delivered to the water outlet through the water outlet pipe, thereby adding detergent. One-way valve 1 and one-way valve 2 prevent backflow of detergent and softener in the housing. When cleaning the internal pipes, clean water is added into cavity one and cavity two, and the motor rotates forward and reverse, so that the clean water can clean hose one, hose two, water inlet pipe one, water inlet pipe two and water outlet pipe.

[0024] The present invention and its embodiments have been described, but such description is not restrictive. The drawings illustrate only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs structures and embodiments similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A detergent adding pump for a washing machine, comprising a top cover (1) and a bottom cover (2), characterized in that: The top cover (1) and the bottom cover (2) are clamped together. A positioning ring (3) is provided on the upper end surface of the top cover (1). A motor (4) is provided inside the positioning ring (3). A protective cover (5) is provided outside the motor (4). The protective cover (5) is clamped together with the positioning ring (3). A limiting ring (6) is provided inside the bottom cover (2). A hose 1 (7) and a hose 2 (8) are provided inside the limiting ring (6). The hose 1 (7) and the hose 2 (8) are symmetrically distributed inside the limiting ring (6). The hose 1 (7) and the hose 2 (8) are symmetrically distributed inside the limiting ring (6). The two ends of the hose (7) are exposed to the limiting ring (6), the hose 1 (7) and the hose 2 (8) are both fitted with the inner wall of the limiting ring (6), and the limiting ring (6) is rotatably connected with a roller (9), there are four rollers (9), and the four rollers (9) are evenly distributed in the limiting ring (6), the rollers (9) are fitted with the hose 1 (7) and the hose 2 (8), and a rotating disk (10) is provided in the limiting ring (6), the rotating disk (10) is located inside the roller (9), and the rotating disk (10) is tangent to the four rollers (9). The output end of the motor (4) is connected to the turntable (10), the lower end surface of the bottom cover (2) is provided with a cavity 1 (11) and a cavity 2 (12), the side of the bottom cover (2) is provided with a water outlet (13), and a shell (14) is provided on one side of the cavity 1 (11) and the cavity 2 (12) on the lower end surface of the bottom cover (2), the shell (14) is clamped with the lower end surface of the bottom cover (2), and a one-way valve 1 (15) and a one-way valve 2 (16) are provided in the shell (14), and a water inlet pipe 1 (17) and a water inlet pipe 2 (16) are provided below the bottom cover (2). Pipe 2 (18) and water outlet pipe (19), the water inlet pipe 1 (17) and water inlet pipe 2 (18) are respectively connected to hose 1 (7) and hose 2 (8) through an elbow (20), the water inlet pipe 1 (17) and water inlet pipe 2 (18) are respectively connected to cavity 1 (11) and cavity 2 (12), the water outlet pipe (19) is connected to the shell (14) and the water outlet (13), the one-way valve 1 (15) and one-way valve 2 (16) are respectively connected to hose 1 (7) and hose 2 (8) through an elbow (20); The two ends of the hose 1 (7) and the hose 2 (8) exposed from the limiting ring (6) are connected to the bottom cover (2) via buckles (21); A reinforcing rib plate (23) is provided inside the bottom cover (2), and the reinforcing rib plate (23) connects the bottom cover (2) and the limiting ring (6). There are four reinforcing rib plates (23), and the four reinforcing rib plates (23) are evenly distributed.

2. A detergent adding pump for a washing machine according to claim 1, characterized in that: The water inlet pipe 1 (17), the water inlet pipe 2 (18) and the water outlet pipe (19) are connected to the bottom cover (2) via a pipe clamp (22).

3. The detergent adding pump for a washing machine according to claim 1, characterized in that: A sealing ring is provided in the housing (14).

4. The detergent adding pump for a washing machine according to claim 1, characterized in that: A positioning column (24) is provided on the lower end surface of the bottom cover (2).

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