Washing machine drainage pump and washing machine

Abstract

The present invention provides a washing machine drainage pump, comprising a pump housing, a filter element assembly and a plurality of drainage motors. The pump housing is provided with a water inlet pipe, a drainage pipe and a filter element installation port. The plurality of drainage motors are installed in combination with the pump housing. The filter element assembly comprises a handle cover, a core assembly and a sealing ring. The handle cover is threadedly connected to the filter element installation port. The sealing ring is arranged between the handle cover and the filter element installation port. The core assembly can be detachably extended into the pump housing through the handle cover, and the core assembly is threadedly connected to the handle cover. The handle cover is located inside the pump housing and the portion thereof is higher than the inner bottom surface of the pump housing, and a limited water storage space is formed between the handle cover and the pump housing. The present invention also provides a washing machine using the washing machine drainage pump. When the filter element is taken out for cleaning, the residual water of the washing machine drainage pump will not flow out, thereby preventing problems such as a damp floor caused by the residual water flowing out.

Description

Technical Field

[0001] The present invention relates to the technical field related to washing machines, and more precisely to a washing machine drainage pump and a washing machine. Background Art

[0002] The washing machine needs to drain water during operation, and this function is achieved by the washing machine drain pump. The washing machine drain pump in the prior art is generally composed of a pump housing, a drain motor, and a filter element. The pump housing has a water inlet and a water outlet. The drain motor is installed in combination with the pump housing, and the filter element is installed in combination with the pump housing. The water entering the pump housing through the water inlet flows through the filter element under the action of the drain motor, is filtered by the filter element, and is discharged from the water outlet. By setting the filter element, debris such as hair in the water can be filtered to prevent clogging of the sewer.

[0003] After using the washing machine drain pump for a period of time, the filter element needs to be cleaned to avoid clogging the pump body and affecting the normal operation of the washing machine. When cleaning the washing machine drain pump, the filter element needs to be removed. Since there is residual water inside the pump housing, it is inevitable that the residual water in the pump housing will flow out when the filter element is removed, contaminating the floor, requiring the user to clean the floor later, causing extra work. If the residual water that flows out is not cleaned in time, it will cause the floor to be damp, which may cause problems such as mold or damage to the floor.

[0004] In order to solve the above problems, the prior art washing machine drain pump generally uses a residual water pipe to drain the residual water in the pump housing before removing the filter element. The residual water pipe is generally a hose, one end of which is connected to the inside of the pump housing. The user operates the other end of the residual water pipe to connect to the container to drain the residual water in the pump housing as much as possible. The residual water pipe can be used to drain some of the residual water, but it is difficult to drain it completely, and it is difficult to avoid water leakage when removing the filter element. It can be seen that the art needs to improve the design of the structure of the washing machine drain pump to solve the technical problem of water leakage when removing the filter element for cleaning. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a washing machine drain pump, wherein a filter element assembly comprises a handle cover, a sealing ring and a core assembly, wherein the handle cover and the sealing ring are installed in combination with the pump casing, and the core assembly is installed in combination with the handle cover, and a limited water storage space is formed between the handle cover and the pump casing. When cleaning, only the core assembly needs to be taken out, and residual water will not flow out when the core assembly is taken out.

[0006] Another object of the present invention is to provide a washing machine using the washing machine drainage pump.

[0007] In order to achieve the above-mentioned purpose, the present invention provides a washing machine drain pump, comprising a pump housing, a filter element assembly and a plurality of drain motors, the pump housing being provided with a water inlet pipe, a drain pipe and a filter element mounting port, a plurality of the drain motors being installed in combination with the pump housing, the filter element assembly comprising a handle cover, a core assembly and a sealing ring, the handle cover being threadedly connected to the filter element mounting port, the sealing ring being arranged between the handle cover and the filter element mounting port, the core assembly being detachably passed through the handle cover and extended into the interior of the pump housing, and the core assembly being threadedly connected to the handle cover; the portion of the handle cover located inside the pump housing is higher than the inner bottom surface of the pump housing, and a limited water storage space is formed between the handle cover and the pump housing.

[0008] Preferably, one end of the handle cover is a water-blocking section, the outer diameter of which gradually decreases in the direction away from the handle cover, the water-blocking section is located inside the pump casing, the water-blocking section is higher than the inner bottom surface of the pump casing, and the limited water storage space is formed between the water-blocking section and the pump casing.

[0009] Preferably, the outer surface of the handle cover is provided with an external thread, and the inner surface of the handle cover is provided with an internal thread, and the tightening directions of the external thread and the internal thread are opposite.

[0010] Preferably, the end of the handle cover located outside the pump housing has a plurality of locking bosses, and the end surface of the filter element mounting port has a plurality of bosses, the bosses are located at the outer periphery of the locking bosses, and the bosses are arranged one by one corresponding to the locking bosses; when the handle cover is completely screwed into the filter element mounting port, the locking bosses are engaged and locked with the bosses.

[0011] Preferably, there are two locking bosses, the two locking bosses are respectively located on two opposite sides of the end of the handle cover, and the two bosses are respectively located on two opposite sides of the end of the filter element installation port.

[0012] Preferably, the core assembly includes a core, a core sleeve and an operating plate, the core sleeve is installed at the end of the core, the operating plate is installed in combination with the core sleeve, and the operating plate extends out of the core sleeve in a direction away from the core, and the core sleeve is threadedly connected to the handle cover.

[0013] Preferably, flip covers are rotatably connected to both sides of the operating panel; when the flip cover is parallel and close to the operating panel, the flip cover is in a retracted state; when the flip cover and the operating panel are perpendicular to each other, the flip cover is in an open state; when the flip cover is in the open state, the operating panel is rotated so that the flip cover contacts the edge of the locking boss.

[0014] Preferably, the operating panel has protrusions on both sides respectively, the protrusions extend in a direction away from the core body, and the ends of the protrusions away from the core body are rotatably connected to the flip cover.

[0015] Preferably, the handle cover is made of transparent material.

[0016] The present invention also provides a washing machine, which adopts the washing machine drainage pump.

[0017] Compared with the prior art, the advantages of a washing machine drain pump and a washing machine disclosed in the present invention are: the washing machine drain pump limits and controls the residual water inside the pump casing through the handle cover, and the residual water will not flow out when the core assembly is taken out for cleaning. The user will not have residual water flowing out when cleaning the core assembly, thereby preventing problems such as wet floors caused by the residual water flowing out; the handle cover can be locked after being connected to the pump casing, and will not rotate when the core assembly is taken out, further ensuring the limitation of the residual water; an adjustable structure is provided on the handle cover, and by changing the adjustable structure, the handle cover can be acted on to release the lock between the handle cover and the pump casing, and the handle cover can be conveniently removed when maintenance is required, and the operation is convenient; the washing machine using the washing machine drain pump has all the above advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] like Figure 1 Shown is a schematic structural diagram of a washing machine drainage pump according to the present invention.

[0020] like Figure 2 Shown is an exploded view of a washing machine drain pump according to the present invention.

[0021] like Figure 3 Shown is a schematic diagram of a forward cross-section of a washing machine drainage pump according to the present invention.

[0022] like Figure 4 The figure shows an exploded schematic diagram of the connection between a pump housing, a handle cover and a sealing ring of a washing machine drainage pump according to the present invention.

[0023] like Figure 5 Shown is a schematic structural diagram of a handle cover of a washing machine drainage pump according to the present invention.

[0024] like Figure 6 The figure shows a schematic cross-sectional view of a pump housing, a handle cover and a sealing ring of a washing machine drainage pump of the present invention when they are connected together.

[0025] like Figure 7 Shown is a structural schematic diagram of a core assembly of a washing machine drainage pump according to the present invention.

[0026] like Figure 8 Shown is a structural schematic diagram of a core sleeve and an operating panel of a core assembly of a washing machine drainage pump according to the present invention.

[0027] like Fig. 9 The figure shows a cross-sectional schematic diagram of a flip cover on an operating panel of a core assembly of a washing machine drainage pump according to the present invention in a retracted state.

[0028] like Fig.10 The figure shows a cross-sectional schematic diagram of a flip cover on an operating panel of a core assembly of a washing machine drainage pump according to the present invention in an open state.

[0029] like Fig.11 The figure shows a schematic structural diagram of a washing machine drainage pump when a handle cover and a pump housing are connected together.

[0030] like Fig.12 The figure shows a schematic structural diagram of a core assembly of a washing machine drainage pump according to the present invention, when the flip cover is in a retracted state and the handle is connected together.

[0031] like Fig.13 The figure shows a schematic structural diagram of a core assembly of a washing machine drainage pump according to the present invention when a flip cover is opened and a handle is connected together. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figure 1 , Figure 2 , Figure 3As shown, a washing machine drain pump of the present application includes a pump housing 10, a filter element assembly 30 and a plurality of drain motors 20. The pump housing 10 is provided with a water inlet pipe 11, a drain pipe 12 and a filter element installation port 13, a plurality of drain motors 20 are installed in combination with the pump housing 10, and the filter element assembly 30 is detachably connected to the pump housing 10 through the filter element installation port 13. The filter element assembly 30 includes a handle cover 31, a core assembly 32 and a sealing ring 33, the handle cover 31 is threadedly connected to the filter element installation port 13, the sealing ring 33 is arranged between the handle cover 31 and the filter element installation port 13, the core assembly 32 is detachably passed through the handle cover 31 and extends into the interior of the pump housing 10, and the core assembly 32 is threadedly connected to the handle cover 31. The portion of the handle cover 31 located inside the pump housing 10 is higher than the inner bottom surface of the pump housing 10, and a limited water storage space 100 is formed between the handle cover 31 and the pump housing 10. After the washing machine drain pump drains water, the core assembly 32 can be taken out for cleaning without taking out the handle cover 31, and when the core assembly 32 is taken out, the residual water in the pump housing 10 will be confined in the limited water storage space 100 and will not flow out of the pump housing 10. The drain motor 20 has a rotating blade 21, and the height of the water storage space 100 is less than the height of the rotating shaft of the rotating blade 21. A check ring 121 is installed on the drain pipe 12.

[0034] For details, see Figure 4 , Figure 5 , Figure 6 The handle glove 31 is tubular, one end of the handle glove 31 is a water blocking section 313, and the outer diameter of the water blocking section 313 gradually decreases in the direction away from the handle glove 31, the water blocking section 313 is located inside the pump housing 10, the water blocking section 313 is higher than the inner bottom surface of the pump housing 10, and a limited water storage space 100 is formed between the pump housing 10. The end of the handle glove 31 away from the water blocking section 313 has a plurality of locking bosses 310. The outer surface of the handle glove 31 has an external thread 311, and the inner surface of the handle glove 31 has an internal thread 312, and the tightening directions of the external thread 311 and the internal thread 312 are opposite. The handle glove 31 is threadedly connected to the filter element installation port 13 through the external thread 311, and the core assembly 32 is threadedly connected to the handle glove 31 through the internal thread 312.

[0035] For further information, see Fig.11, there are a plurality of bosses 131 on the end surface of the filter element installation opening 13, the number of bosses 131 and the locking bosses 310 are the same, and the bosses 131 are located at the periphery of the locking bosses 310, and the bosses 131 are arranged one by one correspondingly, and when the handle cover 31 is completely screwed into the filter element installation opening 13, the locking bosses 310 and the bosses 131 are engaged and locked. Preferably, there are two locking bosses 310, and the two locking bosses 310 are respectively located at the two opposite sides of the end of the handle cover 31, and there are two bosses 131, and the two bosses 131 are respectively located at the two opposite sides of the end of the filter element installation opening 13. By setting the locking bosses 310 and the bosses 131, when the handle cover 31 is completely screwed into the filter element installation opening 13, the locking of the handle cover 31 and the filter element installation opening 13 is achieved, and the situation that the handle cover 31 is prevented from rotating when the core assembly 32 is taken out.

[0036] Preferably, the handle cover 31 is made of transparent material to facilitate user operation.

[0037] See also Figure 7 and Figure 8 The core assembly 32 includes a core 321, a core sleeve 322 and an operating plate 323. The core sleeve 322 is installed at the end of the core 321. The operating plate 323 is installed in combination with the core sleeve 322, and the operating plate 323 extends out of the core sleeve 322 in a direction away from the core 321. The outer side of the core sleeve 322 has a core outer thread 3221, and the core sleeve 322 is threadedly connected to the handle cover 31 through the core outer thread 3221. The core 321 is located inside the pump housing 10. The user can operate the core assembly 32 to take out or put it into the handle cover 31 through the operating plate 323, and the core 321 can be cleaned separately after taking it out.

[0038] See also Fig. 9 and Fig.10 The operation panel 323 has protrusions 3231 on both sides, and the protrusions 3231 extend in a direction away from the core 321. The ends of the protrusions 3231 away from the core 321 are rotatably connected to the flip cover 3232, and the flip cover 3232 flips and is parallel to or perpendicular to the operation panel 323. When the flip cover 3232 is parallel to and close to the operation panel 323, the flip cover 3232 is in a retracted state; when the flip cover 3232 is perpendicular to the operation panel 323, the flip cover 3232 is in an open state.

[0039] See also Fig.12 When the flip cover 3232 is in the retracted state, the rotating operation plate 323 will not act on the locking boss 310. In this state, the box assembly 32 can be taken out or installed separately.

[0040] See also Fig.13When the flip cover 3232 is in the open state, the flip cover 3232 contacts the edge of the locking boss 310 by rotating the operating plate 323, and the locking boss 310 can be pushed away from the boss 131 by continuing to rotate the operating plate 323, thereby releasing the lock of the handle cover 31. This is suitable for situations where the handle cover 31 needs to be removed for maintenance or replacement, and the operation is convenient and quick.

[0041] The present application also discloses a washing machine using the washing machine drainage pump.

[0042] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A washing machine drainage pump, characterized in that: It comprises a pump casing, a filter element assembly and a plurality of drainage motors, wherein the pump casing is provided with a water inlet pipe, a drainage pipe and a filter element installation port, and the plurality of drainage motors are installed in combination with the pump casing, and the filter element assembly comprises a handle cover, a core assembly and a sealing ring, wherein the handle cover is threadedly connected with the filter element installation port, and the sealing ring is arranged between the handle cover and the filter element installation port, and the core assembly is detachably passed through the handle cover and extends into the interior of the pump casing, and the core assembly is threadedly connected with the handle cover; The portion of the handle cover located inside the pump housing is higher than the inner bottom surface of the pump housing, and a limited water storage space is formed between the handle cover and the pump housing.

2. The washing machine drain pump according to claim 1, characterized in that: One end of the handle cover is a water blocking section, the outer diameter of which gradually decreases in the direction away from the handle cover. The water blocking section is located inside the pump housing, is higher than the inner bottom surface of the pump housing, and forms the limited water storage space between the water blocking section and the pump housing.

3. The washing machine drain pump according to claim 1, characterized in that: The outer surface of the handle cover is provided with an external thread, and the inner surface of the handle cover is provided with an internal thread, and the tightening directions of the external thread and the internal thread are opposite.

4. The washing machine drain pump according to claim 1, characterized in that: The end of the handle cover located outside the pump housing has a plurality of locking bosses, and the end surface of the filter element mounting port has a plurality of bosses, the bosses are located on the outer periphery of the locking bosses, and the bosses are arranged one by one corresponding to the locking bosses; when the handle cover is completely screwed into the filter element mounting port, the locking bosses are engaged and locked with the bosses.

5. The washing machine drain pump according to claim 4, characterized in that: There are two locking bosses, two bosses, and the two locking bosses are respectively located on two opposite sides of the end of the handle cover, and the two bosses are respectively located on two opposite sides of the end of the filter element installation port.

6. The washing machine drain pump according to claim 4, characterized in that: The core assembly includes a core, a core sleeve and an operating plate, wherein the core sleeve is installed at the end of the core, the operating plate is installed in combination with the core sleeve, and the operating plate extends out of the core sleeve in a direction away from the core, and the core sleeve is threadedly connected to the handle cover.

7. The washing machine drain pump according to claim 6, characterized in that: The two sides of the operating panel are rotatably connected to flip covers; when the flip cover is parallel and close to the operating panel, the flip cover is in a retracted state; when the flip cover and the operating panel are perpendicular to each other, the flip cover is in an open state; when the flip cover is in the open state, the operating panel is rotated so that the flip cover contacts the edge of the locking boss.

8. The washing machine drain pump according to claim 7, characterized in that: The operating plate has protrusions on both sides respectively. The protrusions extend in a direction away from the core body. The ends of the protrusions away from the core body are rotatably connected to the flip cover.

9. The washing machine drain pump according to claim 1, characterized in that: The handle cover is made of transparent material.

10. A washing machine, characterized in that: A washing machine drain pump as claimed in any one of claims 1 to 7 is used.

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