An activity door cover for a self-cleaning drum washing machine

Abstract

The movable door cover of a self - cleaning drum washing machine according to the present invention relates to the technical field of water - saving washing machines, overcoming the defect of water leakage in existing water - saving drum washing machines. The washing drum is installed through the bottom mounting hole at the rear of the outer drum by a fixed washing drum flange and a shaft, and the two are movably installed together by a bearing and a large water seal. An activity door is installed on the front part of the outer drum through a fixed door hinge. The said activity door includes an inner door and an outer door, and the two are movably installed together by a door bearing and are movably installed on the outer door by a handle pin shaft. The other end of the outer door relative to the door handle is movably installed on the door hinge by a door pin shaft. The product of the present invention, by setting a movable door cover on the drum washing machine, has a simple structure and high reliability, effectively seals the washing drum, and water will not flow out of the washing drum door during the washing process. It not only improves the washing effect, saves water resources, but also keeps the washing drum clean, realizing environmental protection.

Description

Technical Field

[0001] The present invention relates to the technical field of water-saving washing machines, and particularly to a movable door cover of a self-cleaning drum washing machine. Background Art

[0002] At present, in the self-cleaning drum washing machine, since the washing drum rotates to participate in washing during washing, although the washing drum is set to a structure without holes and a water switch device for water retention and drainage is also provided, the washing water flows out from the door of the washing drum during washing, and the purpose of environmental protection and water saving cannot be achieved. Therefore, how to overcome the water leakage problem of the self-cleaning drum washing machine is a technical problem that we urgently need to solve at present. Summary of the Invention

[0003] The purpose of the present invention is to provide a movable door cover of a self-cleaning drum washing machine, so that water will not flow out from the door of the washing drum without holes during the washing process, which not only saves water resources, but also keeps the washing drum clean and realizes environmental protection.

[0004] According to the above purpose, the technical solution of the present invention is: a movable door cover of a self-cleaning drum washing machine, including a washing drum concentrically installed in an outer cylinder, characterized in that: the outer cylinder includes a rear part of the outer cylinder and a front part of the outer cylinder, the washing drum passes through a bottom mounting hole at the rear part of the outer cylinder through a fixed washing drum flange and a shaft, and the two are movably installed together by a bearing and a large water seal, and a movable door is installed on the front part of the outer cylinder through a fixed door hinge. The movable door includes an inner door and an outer door, and the two are movably installed together by a door bearing. The outer door is also provided with a door handle and a buckle thereon, and the two are movably installed on the outer door by a handle pin shaft. The other end of the outer door relative to the door handle is movably installed on the door hinge by a door pin shaft, and a rubber ring is fixedly installed on the inner door.

[0005] Further, a ring concentric with the axis line of the washing drum is provided at the mouth of the washing drum at the end of the washing drum, which has a smooth inner surface and / or outer surface, and / or a smooth plane, and the rubber ring can be at least connected in cooperation with one surface of the mouth of the washing drum.

[0006] Further, the cross-section of the buckle has a guiding inclined surface and a retaining straight surface, and a buckle groove is provided on the front part of the outer cylinder. When the movable door is closed, the guiding inclined surface of the buckle acts on the edge of the buckle groove, and after closing, the straight surface of the buckle acts on the edge of the buckle groove to prevent retraction. The door handle can rotate around the handle pin shaft by a certain angle, and a return torsion spring is provided thereon.

[0007] Further, an elastic body is provided on the periphery of the outer door, and when the movable door is in a closed state, the outer door is hermetically connected to the front part of the outer cylinder.

[0008] Further, a door center hole is provided in the middle of the outer door, and a pipeline connected to the water inlet valve or the water inlet box is arranged on the outer door, and the outlet of the pipeline is arranged at the door center hole in the middle of the outer door.

[0009] Furthermore, an internal spline is provided in the middle of the inner door, and a clutch sleeve with an external spline is sleeved outside the door bearing. The inner door and the outer door can rotate circumferentially and axially relative to each other. An electromagnetic coil is fixed on the outer door, and a corresponding magnetic conductive ring and a return compression spring are arranged on the inner door.

[0010] Furthermore, the movable door is an integral combined door, and the combined door is movably installed on the outer door through a door bearing. A buffer sealing ring is fixedly installed on the outer circumference of the combined door, and the buffer sealing ring includes a buffer sealing ring skeleton part and a buffer sealing ring lip part.

[0011] Furthermore, the movable door is arranged on the box body, a door hinge and a buckle groove are fixedly installed on the box body, and a rubber sealing member is arranged between the front opening of the box body and the front opening of the outer cylinder.

[0012] Furthermore, the movable door cover is an electromagnetic movable door cover or a buffer movable door cover and is directly installed on the box body.

[0013] Compared with the prior art, the technical effect of the present invention is as follows: for the product of the present invention, by arranging a movable door cover on the drum washing machine, the structure is simple and the reliability is high. The washing tub is effectively sealed, and water will not flow out of the washing tub door during the washing process, which not only improves the washing effect, saves water resources, but also keeps the washing tub clean and realizes environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts:

[0015] Figure 1 It is a schematic cross-sectional view of the closed state of the drum movable door of the first embodiment of the product of the present invention;

[0016] Figure 2 It is a schematic front view of the closed state of the drum movable door of the first embodiment of the product of the present invention;

[0017] Figure 3 It is a schematic cross-sectional view of the open state of the drum movable door of the first embodiment of the product of the present invention;

[0018] Figure 4Front view structural schematic diagram of the open state of the drum movable door in the first embodiment of the product of the present invention;

[0019] Figure 5 Structural schematic diagram of the closed state of the electromagnetic clutch movable door in the second embodiment of the product of the present invention;

[0020] Figure 6 Structural schematic diagram of the open state of the electromagnetic clutch movable door in the second embodiment of the product of the present invention;

[0021] Figure 7 Structural schematic diagram of the closed state of the buffer seal movable door in the third embodiment of the product of the present invention;

[0022] Figure 8 Structural schematic diagram of the open state of the buffer seal movable door in the third embodiment of the product of the present invention;

[0023] Figure 9 Enlarged structural schematic diagram of the buffer seal in the third embodiment of the product of the present invention;

[0024] Figure 10 Structural schematic diagram of the closed state of the movable door on the box body in the fourth embodiment of the product of the present invention;

[0025] Figure 11 Structural schematic diagram of the open state of the movable door on the box body in the fourth embodiment of the product of the present invention;

[0026] In the figure: 1. Rear part of the outer cylinder; 2. Washing cylinder; 3. Washing cylinder flange; 4. Shaft; 5. Bearing; 6. Large water seal; 7. Front part of the outer cylinder; 8. Snap groove; 9. Mouth part of the washing cylinder; 10. Door hinge; 11. Door pin shaft; 12. Outer door; 13. Inner door; 14. Door center hole; 15. Door bearing; 16. Rubber ring; 17. Snap; 18. Door handle; 19. Handle pin shaft; 20. Clutch sleeve; 21. Return compression spring; 22. Electromagnetic coil; 23. Combined door; 24. Buffer seal; 25. Box body; 26. Rubber seal; 241. Buffer seal skeleton part; 242. Buffer seal elastic part; 243. Buffer seal lip part. Detailed implementation manners

[0027] Combined with the attached Figures 1 to 4 , it is a structural schematic diagram of the movable door cover of the self-cleaning drum washing machine of the invention. The device includes an outer cylinder and a washing cylinder 2. The outer cylinder is divided into two parts, namely the rear part 1 of the outer cylinder and the front part 7 of the outer cylinder. The rear part 1 of the outer cylinder and the front part 7 of the outer cylinder are fixedly installed together by screws. The washing cylinder 2 is installed through the bottom mounting hole of the rear part 1 of the outer cylinder by the fixedly connected washing cylinder flange 3 and shaft 4. The two are movably and concentrically installed together by a bearing 5 and a large water seal 6. A pulley or a motor rotor is fixedly installed on the outer part of the rear part 1 of the outer cylinder through the shaft 4 to provide power for the washing cylinder.

[0028] A door hinge 10 is fixed on the front part 7 of the outer cylinder. The movable door is composed of an inner door 13 and an outer door 12, and the two are movably installed together through a door bearing 15. The inner door 13 rotates around the axis line of the outer door 12.

[0029] The outer door 12 is also provided with a door handle 18 and a buckle 17 fixed thereon. The two are movably installed on the outer door 12 through a handle pin shaft 19 and can rotate around the handle pin shaft 19 by a certain angle. A return torsion spring is also installed on the handle pin shaft 19. The other end of the outer door 12 relative to the door handle 18 is movably installed on the door hinge 10 through a door pin shaft 11. The door hinge 10 is fixed on the front part 7 of the outer cylinder. Therefore, that is, the inner door 13 and the outer door 12 can rotate relative to the outer cylinder by a certain angle to be in a closed or open state.

[0030] A rubber ring 16 is also fixedly installed on the inner door 13.

[0031] A buckle groove 8 is provided on the front part 7 of the outer cylinder.

[0032] The washing cylinder mouth part 9 at the end of the washing cylinder 2 is set as a circular ring structure concentric with the axis line of the washing cylinder 2, having a smooth inner surface and / or outer surface, or / and a smooth plane. The above-mentioned rubber ring 16 can at least cooperate with one surface of the washing cylinder mouth part 9 to achieve a sealing effect.

[0033] The cross-section of the buckle 17 is composed of a guiding inclined surface and a retaining straight surface. The buckle groove 8 provided on the front part 7 of the outer cylinder. During the closing process of the movable door, the guiding inclined surface of the buckle 17 acts on the edge of the buckle groove 8. When the movable door is acted on by an external force, that is, the force pushing the movable door makes the buckle have a downward pressure. Under the action of its guiding inclined surface, the downward pressure received by the buckle 17 is converted into a lateral pushing force, causing the buckle 17 to rotate. When the buckle 17 rotates by a certain angle, the guiding inclined surface of the buckle 17 slides across the edge of the buckle groove 8. The buckle 17 reverses by a certain angle under the action of the return torsion spring, so that the straight surface of the buckle 17 acts on the edge of the buckle groove 8 to stop retreating, which is the locked state. When opening the movable door, pulling the door handle 18 and the buckle 17 thereon first overcome the torsion of the return torsion spring. The door handle 18 can rotate around the handle pin shaft 19 by a certain angle, so that the retaining straight surface of the buckle 17 disengages from the buckle groove 8. Then the entire movable door rotates around the door pin shaft 11 again, and then the movable door is opened to facilitate taking and placing clothes.

[0034] An elastomer is provided on the periphery of the outer door 12. When the movable door is in a closed state, the above-mentioned elastomer makes the outer door 12 and the front part 7 of the outer cylinder have a sealing effect. The elastomer can be rubber or other materials with a sealing effect. When the movable door is closed, the water in the washing cylinder will not flow out between the front part 7 of the outer cylinder and the movable door.

[0035] There is a door center hole 14 in the middle of the outer door 12. The water inlet pipe is fixedly installed on the outer door 12. The water inlet pipe is externally connected to a water inlet valve or a washing powder box. The outlet of the water inlet pipe is at the door center hole 14 in the middle of the outer door 12, and the water flows into the interior of the washing tub 2 from the door center hole.

[0036] In the above device, during water inlet and washing, the movable door is closed. The water inlet valve intakes water through the water inlet pipe and flows into the washing tub 2 from the door center hole 14 in the middle of the outer door 12. When the water level reaches a certain amount, the washing tub 2 rotates, and the inner door 13 and the rubber ring 16 thereon rotate together with the washing tub 2, while the outer door remains stationary. Since the amount of water during washing in the drum washing machine is lower than the center line, the water in the washing tub will not flow out from anywhere. During dehydration, the water in the washing tub flows out through the water switch at other places, which will not be explained here. The inner door 13 and the rubber ring 16 thereon rotate together with the washing tub 2.

[0037] Combined with the attached Figure 5 , Figure 6 , it is a schematic diagram of the movable door cover with an electromagnetic clutch device for the second embodiment of the product of the present invention. Among them, Figure 5 is the closed state diagram of the movable door with an electromagnetic clutch, Figure 6 is the open state diagram of the movable door with an electromagnetic clutch. There is an internal spline structure in the middle of the inner door 13, and a clutch sleeve 20 with an external spline is sleeved outside the door bearing 15. The inner door 13 and the outer door 12 can rotate circumferentially relative to each other and can also axially move a certain distance. An electromagnetic coil 22 is fixed on the outer door 12, and there is a corresponding magnetic conductive ring and a return compression spring 21 on the inner door 13. When the electromagnetic coil 22 loses power, the return compression spring 21 pushes the inner door 13 and the rubber ring 16 fixedly installed thereon towards the washing tub 2, so that the rubber ring 16 is pressed tightly on the washing tub opening 9 to achieve a sealing effect. This is the water inlet and washing process. When the electromagnetic coil 22 is powered on, the magnetic conductive ring on the inner door 13 is stressed, so that the inner door 13 and the rubber ring 16 fixedly installed thereon overcome the elastic force of the return compression spring 21 and move in the opposite direction of the washing tub 2, so that the rubber ring 16 disengages from the washing tub opening 9. This is the drainage and dehydration process. At this time, the inner door 13 and the rubber ring 16 thereon are no longer in contact with the washing tub 2.

[0038] Combined with the attached Figures 7 to 9 , it is a schematic diagram of the movable door cover with a buffer sealing ring for the third embodiment of the product of the present invention. Among them Figure 7 is the closed state diagram of the movable door with a buffer sealing ring, Figure 8 is the open state diagram of the movable door with a buffer sealing ring, Figure 9Schematic diagram of the buffer sealing ring structure; the movable door is an integral combined door 23, and the combined door 23 is movably mounted on the outer door 12 through a door bearing. A buffer sealing ring 24 is fixedly mounted on the outer circumference of the combined door 23. The buffer sealing ring 24 consists of an inner and outer ring, namely, a buffer sealing ring skeleton part 241 with an internal support structure and a buffer sealing ring lip part 24 of the outer rolling seal part. Between the two is a buffer sealing ring elastic part 242, which has strong elasticity. When closing the movable door, the buffer sealing ring lip part 243 of the buffer sealing ring 24 is movably sealed with the washing tub opening 9, and the two can rotate freely. When the washing tub 2 rotates, the combined door 23 and the buffer sealing ring 24 thereon do not rotate. However, due to the strong elasticity of the buffer sealing ring 24, the jumping generated during the rotation of the washing tub will not damage its sealing effect. The closing and opening are the same as in the previous specific embodiment 1, and will not be repeated here.

[0039] Combined with the attached Figure 10 、 Figure 11 , it is a schematic diagram of the structure of the fourth embodiment of the product of the present invention, where Figure 10 is a closed state diagram of the movable door on the box body; Figure 11 is an open state diagram of the movable door on the box body; the movable door is arranged on the box body 25, and the others are the same as the foregoing. A door hinge 10, a snap groove 8 and other structures are fixedly mounted on the box body 25. A rubber seal 26 is provided between the front opening of the box body 25 and the opening of the front part of the outer cylinder 7. The movable door cover form of this structure has various forms such as the first embodiment, the second embodiment, and the third embodiment above.

[0040] The opening and closing forms are the same as the foregoing, and will not be repeated here.

Claims

1. An activity door cover of a self-cleaning drum washing machine, comprising a washing drum (2) concentrically installed in an outer cylinder, characterized in that: The outer cylinder described above includes an outer cylinder rear part (1) and an outer cylinder front part (7). The washing cylinder (2) is installed through the bottom mounting hole of the outer cylinder rear part (1) by means of a fixed washing cylinder flange (3) and a shaft (4). The two are movably installed together by a bearing (5) and a large water seal (6). An active door is installed on the outer cylinder front part (7) through a fixed door hinge (10). The active door includes an inner door (13) and an outer door (12). The two are movably installed together by a door bearing (15). The outer door (12) is also provided with a door handle (18) and a buckle (17) thereon. The two are movably installed on the outer door (12) by a handle pin shaft (19). And the other end of the outer door (12) relative to the door handle (18) is movably installed on the door hinge (10) by a door pin shaft (11). A rubber ring (16) is fixedly installed on the inner door (13); A circular ring concentric with the axis line of the washing cylinder (2) is provided at the washing cylinder mouth part (9) at the end of the washing cylinder (2), having a smooth inner surface and / or outer surface, and / or a smooth plane. The rubber ring (16) can be at least in mating connection with one surface of the washing cylinder mouth part (9); Internal splines are provided in the middle of the inner door (13), and a clutch sleeve (20) with external splines is sleeved outside the door bearing (15). The inner door (13) and the outer door (12) can rotate circumferentially relative to each other and can also move axially. An electromagnetic coil (22) is fixed on the outer door (12), and a corresponding magnetic conductive ring and a return compression spring (21) are provided on the inner door (13); When the electromagnetic coil (22) is de-energized, the return compression spring (21) pushes the inner door (13) and the rubber ring (16) fixedly installed thereon towards the washing cylinder (2), so that the rubber ring (16) is pressed tightly on the washing cylinder mouth part (9) to achieve a sealing effect. At this time, it is the water inlet and washing process; When the electromagnetic coil (22) is energized, the magnetic conductive ring on the inner door (13) is stressed, so that the inner door (13) and the rubber ring (16) fixedly installed thereon overcome the elastic force of the return compression spring (21) and move in the opposite direction of the washing cylinder (2), so that the rubber ring (16) disengages from the washing cylinder mouth part (9). This is the drainage and dehydration process. At this time, the inner door (13) and the rubber ring (16) thereon no longer contact the washing cylinder (2).

2. The movable door cover of the self-cleaning drum washing machine according to claim 1, wherein: The cross section of the buckle (17) has a guiding inclined surface and a retaining straight surface. A buckle groove (8) is provided on the outer cylinder front part (7). When the active door is closed, the guiding inclined surface of the buckle (17) acts on the edge of the buckle groove (8). After closing, the straight surface of the buckle (17) acts on the edge of the buckle groove (8) to prevent retraction. The door handle (18) can rotate around the handle pin shaft (19) by a certain angle, and a return torsion spring is provided thereon.

3. The movable door cover of the self-cleaning drum washing machine according to claim 1, characterized in that: An elastic body is provided around the outer door (12). When the active door is in the closed state, the outer door (12) is in sealed connection with the outer cylinder front part (7).

4. The movable door cover of the self-cleaning drum washing machine according to claim 1, characterized in that: There is a door center hole (14) in the middle of the outer door (12). A pipeline connected to a water inlet valve or a water inlet box is provided on the outer door (12), and the outlet of the pipeline is located at the door center hole in the middle of the outer door (12).

5. The movable door cover of the self-cleaning drum washing machine according to any one of claims 1 to 4, characterized in that: The described trap door is arranged on the box body (25). A door hinge (10) and a snap groove (8) are fixedly installed on the box body (25). A rubber seal (26) is arranged between the front opening of the box body (25) and the opening of the front part of the outer cylinder (7).

6. The movable door cover of the self-cleaning drum washing machine according to any one of claims 1 to 4, characterized in that: The described self-cleaning drum washing machine trap door cover is an electromagnetic trap door cover or a buffer trap door cover and is directly installed on the box body.

Images