A spin-sealed door for a self-cleaning drum washing machine

Abstract

The rotary sealing door of a self - cleaning drum washing machine of the present invention relates to the technical field of drum washing machines, and overcomes the defect that the current water - saving drum washing machines have high costs. The rotary sealing door is mounted and supported on the box body, and includes a perspective door and a glass door. The glass door can rotate relative to the perspective door. The rotary sealing door is matched with the mouths of the concentrically installed outer cylinder and inner cylinder. A glass door is provided on the front door opening of the inner cylinder. A fixing plate is provided in the middle of the glass door. The fixing plate is supported and connected to the perspective door passing through the outer cylinder door opening through a bearing. The glass door and the fixing plate can rotate relative to the perspective door. For the product of the present invention, by setting a rotary sealing door on the box body, and the conical surface of the rotary seal passes through the outer cylinder door opening to be sealed with the inner cylinder door opening, not only the sealing problem is solved, but also the door and the inner cylinder can rotate together, with powerful functions, convenient assembly, and cost savings.

Description

Technical Field

[0001] The present invention relates to the technical field of drum washing machines, and particularly to a rotary sealing door for a self-cleaning drum washing machine. Background Art

[0002] For current water-saving drum washing machines, since the inner drum needs to rotate during washing, some of these washing machines are equipped with two doors. There is one on the cabinet and the outer drum, and this door remains in the same static state as the cabinet. In order to prevent the water in the inner drum from spilling out during washing, there must also be a door on the inner drum, and this door can rotate with the inner drum. These two doors, one moves and the other remains relatively stationary, so they are separate. How to reduce costs and facilitate installation is the technical problem we need to solve currently. Summary of the Invention

[0003] The purpose of the present invention is to provide a rotary sealing door for a self-cleaning drum washing machine to overcome the above-mentioned defects, reduce costs, and facilitate assembly.

[0004] According to the above purpose, the technical solution of the present invention is: A rotary sealing door for a self-cleaning drum washing machine, characterized in that: the rotary sealing door is mounted and supported on the cabinet, and includes a perspective door and a glass door. The glass door can rotate relative to the perspective door. The rotary sealing door cooperates with the mouths of the concentrically installed outer drum and inner drum. There is a glass door on the front door opening of the inner drum. There is a fixing plate in the middle of the glass door. The fixing plate is supported and connected to the perspective door passing through the door opening of the outer drum through a bearing. The glass door and the fixing plate can rotate relative to the perspective door.

[0005] Further, the fixing plate is placed on one side in the middle of the glass door, and the outer ring of the bearing is defined by a large retaining ring. The large retaining ring is placed on the other side in the middle of the glass door, and a skeleton seal ring is provided in the large retaining ring.

[0006] Further, an inner drum seal ring is provided at the contact position between the inner drum and the glass door.

[0007] More specifically, the inner drum seal ring is made of foamed rubber or a material with sufficient elasticity and compression amount.

[0008] Further, an outer drum seal ring is provided at the contact position between the outer drum and the end face or conical surface of the perspective door.

[0009] More specifically, one end of the outer drum seal ring is installed at the door opening of the outer drum, and the other end is installed at the door opening of the cabinet.

[0010] Further, the disc edge of the perspective door is connected and fixed together by an inner fixing ring and an outer fixing ring, and a door hinge is connected on one side.

[0011] Further, the perspective door is movably connected to a hinge seat provided on the box body through a door hinge.

[0012] Furthermore, an elastomer is provided between the glass door and the perspective door.

[0013] Furthermore, the perspective door is in a "T" shape, including a disc-shaped body and a cylinder in the middle of the bottom. The bearing is installed on the cylinder and fixedly connected through a small retaining ring. The small retaining ring is movably connected to the skeleton seal ring.

[0014] More specifically, the disc-shaped body and the cylinder in the middle of the bottom are integrally connected.

[0015] More specifically, the glass door is movably connected to the fixed plate through a corrugated rubber ring and an elastomer.

[0016] Furthermore, the disc-shaped body and the cylinder in the middle of the bottom are separable and movably connected. A hollow spline is provided at the center of the disc-shaped body, and the cylinder is a spline hollow shaft. The spline hollow shaft passes through the spline hole of the disc-shaped body and is locked and connected through a threaded elbow from the other side of the perspective door.

[0017] More specifically, the glass door and the fixed plate are integrally and directly fixedly connected. The elastomer is installed between the disc-shaped body and the cylinder in the middle of the bottom, and the elastomer is a spring.

[0018] Furthermore, elastic sealing strips are provided on the end face or conical surface of the glass door and the contact surface with the inner cylinder or outer cylinder.

[0019] Furthermore, a magnetic adsorption pair is provided in the inner cylinder sealing ring at the mouth of the inner cylinder of the glass door.

[0020] Compared with the prior art, the technical effect of the present invention is as follows: For the product of the present invention, by providing a rotary seal door on the box body, and the conical surface of the rotary seal passes through the outer cylinder door opening and is sealed with the inner cylinder door opening, not only the sealing problem is solved, but also the door and the inner cylinder can rotate together, with powerful functions, convenient assembly, and cost savings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. 1 is a schematic diagram of the principle structure of the first embodiment of the rotary seal door of the present invention installed on a washing machine;

[0022] Figure 2 FIG. 2 is a schematic cross-sectional structure diagram of the first embodiment of the rotary seal door of the present invention;

[0023] Figure 3 FIG. 3 is a schematic diagram of the principle structure of the second embodiment of the rotary seal door of the present invention installed on a washing machine;

[0024] Figure 4 Schematic cross-sectional structure diagram of the second embodiment of the rotary sealing door of the present invention;

[0025] Figure 5 Schematic diagram of the principle structure of the third embodiment of the rotary sealing door of the present invention installed on a washing machine;

[0026] Figure 6 Schematic cross-sectional structure diagram of the third embodiment of the rotary sealing door of the present invention;

[0027] Figure 7 Schematic cross-sectional structure diagram of the glass door of the third embodiment of the rotary sealing door of the present invention;

[0028] In the figure: 1. Outer cylinder; 2. Outer cylinder sealing ring; 3. Inner fixing ring; 4. Outer fixing ring; 5. Glass door; 6. Perspective door; 7. Large retaining ring; 8. Skeleton sealing ring; 9. Small retaining ring; 10. Threaded elbow; 11. Splined hollow shaft; 12. Elastomer; 13. Bearing; 14. Fixed plate; 15. Inner cylinder sealing ring; 16. Inner cylinder; 18. Corrugated rubber ring; 19. Door hinge; 20. Hinge seat; 21. Box body. Detailed implementation manners

[0029] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0030] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0031] Combined with Figures 1 to 2, is a schematic structural view of the first embodiment of the self-cleaning drum washing machine with a rotary sealing door of the present invention. The rotary sealing door is mounted and supported on the cabinet 21, and includes a perspective door 6 and a glass door 5. The glass door 5 can rotate relative to the perspective door 6. The rotary sealing door cooperates with the mouths of the concentrically installed outer drum 1 and inner drum 16. The glass door 5 is provided on the front door opening of the inner drum 16. A fixing plate 14 is provided in the middle of the glass door 5. The fixing plate 14 is supported and connected to the perspective door 6 passing through the door opening of the outer drum 1 through a bearing 13. The glass door 5 and the fixing plate 14 can rotate relative to the perspective door 6; the fixing plate 14 is placed on one side in the middle of the glass door 5, and the outer ring of the bearing 13 is defined by a large retaining ring 7. The large retaining ring 7 is placed on the other side in the middle of the glass door 5. A skeleton seal ring 8 is provided in the large retaining ring 7; an inner drum seal ring 15 is provided at the contact position between the inner drum 16 and the glass door 5; the inner drum seal ring 15 is made of foamed rubber or a material with sufficient elasticity and compression; an outer drum seal ring 2 is provided at the contact position between the outer drum 1 and the end face or conical surface of the perspective door 6; one end of the outer drum seal ring 2 is installed at the door opening of the outer drum 1, and the other end is installed at the door opening of the cabinet 21; the disc edge of the perspective door 6 is fixedly connected together by an inner fixing ring 3 and an outer fixing ring 4, and a door hinge 19 is connected on one side; the perspective door 6 is movably connected to a hinge seat 20 provided on the cabinet 21 through the door hinge 19; an elastomer 12 is provided between the glass door 5 and the perspective door 6; the perspective door 6 is in a "T" shape, including a disc-shaped body and a cylinder in the middle of the bottom. The bearing 13 is installed on the cylinder and fixedly connected through a small retaining ring 9. The small retaining ring 9 is movably connected to the skeleton seal ring 8; the disc-shaped body and the cylinder in the middle of the bottom are integrally connected; the glass door 5 and the fixing plate 14 are directly fixedly connected as a whole. Elastic sealing strips are provided on the end face or conical surface of the glass door 5 and the contact surface with the inner drum 16 or the outer drum 1 of the perspective door 6; in the inner drum seal ring 15 at the mouth of the glass door 5 and the inner drum 16, a magnetic adsorption pair is provided.

[0032] The above-mentioned self-cleaning drum washing machine door assembly includes a door assembly movably mounted on the rotating shaft of a hinge seat 20 provided on the cabinet 21 through a door hinge 19, including an external perspective door 6 and an internal glass door 5, etc. The middle part of the perspective door 6 has a shaft-like structure, on which a bearing 13 is fixedly installed, and the inner ring of the bearing 13 is limited by a small retaining ring 9. The outer ring of the bearing 13 is fixedly installed in the fixing plate 14, and the axial position is defined by a large retaining ring 7. A skeleton seal ring 8 is also movably provided between the large retaining ring 7 and the small retaining ring 9. Therefore, the fixing plate 14, the large baffle 7 and the outer ring of the bearing 13 can rotate relative to the perspective door 6 in a sealed manner; the glass door 5 is fixed together with the fixing plate 14 through the large retaining ring 7 and can rotate around the middle axis of the perspective door 6 in a sealed manner.

[0033] The mouth of the outer tub 1 of the washing machine is provided with an outer tub sealing ring 2, which is similar to that of a common drum washing machine. One end of the outer tub sealing ring 2 is connected to the mouth of the outer tub 1, and the other end is connected to the front door opening of the cabinet 21. When the conical surface of the perspective door 6 is engaged, a sealed state is maintained.

[0034] The mouth of the inner tub 16 of the washing machine is provided with an inner tub sealing ring 15. When the above-mentioned door assembly is closed, the end face and the conical surface of the glass door 5 cooperate with the inner tub sealing ring 15. The inner tub sealing ring 15 is made of a material similar to foamed rubber and has sufficient elasticity and compression amount. When there is an installation error between the inner tub 16 and the outer tub 1 of the washing machine or a positional error between the cabinet and the inner and outer tubs caused by vibration during operation, the end face and the conical surface of the glass door 5 remain elastically in contact with the inner tub sealing ring 15, always maintaining a tight fit between the glass door and the inner tub sealing ring 15 without water leakage.

[0035] Elastic sealing strips may also be provided at the end face and the conical surface of the glass door 5 to closely match with the inner tub sealing ring 15 and compensate for the installation error of the tub or the displacement caused by vibration.

[0036] In the glass door 5 and the inner tub sealing ring 15 at the mouth of the inner tub, magnetic strips may also be embedded. When the glass door 5 approaches the mouth of the inner tub 16, the inner tub sealing ring 15 is adsorbed to the end face and the conical surface of the glass door 5, thereby achieving a sealing effect and elastic sealing.

[0037] Combined Figures 3 to 4, is a schematic structural diagram of the second embodiment of the self-cleaning drum washing machine with a rotary sealing door of the present invention. The rotary sealing door is mounted and supported on the cabinet 21, and includes a perspective door 6 and a glass door 5. The glass door 5 can rotate relative to the perspective door 6. The rotary sealing door cooperates with the mouths of the concentrically installed outer drum 1 and inner drum 16. A glass door 5 is provided on the front door opening of the inner drum 16. A fixing plate 14 is provided in the middle of the glass door 5. The fixing plate 14 is supported and connected to the perspective door 6 passing through the door opening of the outer drum 1 through a bearing 13. The glass door 5 and the fixing plate 14 can rotate relative to the perspective door 6; the fixing plate 14 is placed on one side in the middle of the glass door 5, and the outer ring of the bearing 13 is defined by a large retaining ring 7. The large retaining ring 7 is placed on the other side in the middle of the glass door 5. A skeleton seal ring 8 is provided in the large retaining ring 7; an inner drum seal ring 15 is provided at the contact position between the inner drum 16 and the glass door 5; the inner drum seal ring 15 is made of foamed rubber or a material with sufficient elasticity and compression; an outer drum seal ring 2 is provided at the contact position between the outer drum 1 and the end face or conical surface of the perspective door 6; one end of the outer drum seal ring 2 is installed at the door opening of the outer drum 1, and the other end is installed at the door opening of the cabinet 21; the disc edge of the perspective door 6 is fixedly connected together by an inner fixing ring 3 and an outer fixing ring 4, and a door hinge 19 is connected on one side; the perspective door 6 is movably connected to a hinge seat 20 provided on the cabinet 21 through the door hinge 19; the perspective door 6 is in a "T" shape, including a disc-shaped body and a cylinder in the middle of the bottom. The bearing 13 is installed on the cylinder and fixedly connected through a small retaining ring 9. The small retaining ring 9 is movably connected to the skeleton seal ring 8; the disc-shaped body and the cylinder in the middle of the bottom are integrally connected; the glass door 5 is movably connected to the fixing plate 14 through a corrugated rubber ring 18 and an elastomer 12; an elastic sealing strip is provided on the end face or conical surface of the glass door 5 and the contact surface with the inner drum 16 or the outer drum 1; a magnetic adsorption pair is provided in the inner drum seal ring 15 at the mouth of the glass door 5 and the inner drum 16.

[0038] The above-mentioned door assembly of the self-cleaning drum washing machine includes a door assembly rotatably mounted on the hinge seat 20 provided on the cabinet 21 through a door hinge 19, including an external perspective door 6 and an internal glass door 5, etc.

[0039] The middle part of the perspective door 6 has an axial structure, on which a bearing 13 is fixedly installed, and the inner ring of the bearing 13 is limited by a small retaining ring 9. The outer ring of the bearing 13 is fixedly installed in the fixing plate 14, and the axial position is defined by a large retaining ring 7. A skeleton seal ring 8 is also movably provided between the large retaining ring 7 and the small retaining ring 9. Therefore, the fixing plate 14, the large baffle 7 and the outer ring of the bearing 13 can rotate relative to the perspective door 6 in a sealed manner.

[0040] The glass door 5 is movably connected to the fixed plate 14 through a corrugated rubber ring 18. A compression spring or other elastic member with a similar function is also installed between the end face of the fixed plate 14 and the end face of the glass door 5, so that the glass door always has a force pushing inward.

[0041] Combined Figures 5 to 7 , which is a schematic structural diagram of the third embodiment of the self-cleaning drum washing machine rotary seal door of the present invention. The rotary seal door is installed and supported on the box body 21, and includes a perspective door 6 and a glass door 5. The glass door 5 can rotate relative to the perspective door 6. The rotary seal door cooperates with the mouths of the concentrically installed outer cylinder 1 and inner cylinder 16. A glass door 5 is provided on the front door opening of the inner cylinder 16. A fixed plate 14 is provided in the middle of the glass door 5. The fixed plate 14 is supported and connected to the perspective door 6 passing through the door opening of the outer cylinder 1 through a bearing 13. The glass door 5 and the fixed plate 14 can rotate relative to the perspective door 6; the fixed plate 14 is placed on one side in the middle of the glass door 5, and the outer ring of the bearing 13 is defined by a large retaining ring 7. The large retaining ring 7 is placed on the other side in the middle of the glass door 5. A skeleton seal ring 8 is provided inside the large retaining ring 7; an inner cylinder seal ring 15 is provided at the contact position between the inner cylinder 16 and the glass door 5; the inner cylinder seal ring 15 is made of foamed rubber or a material with sufficient elasticity and compression; an outer cylinder seal ring 2 is provided at the contact position between the outer cylinder 1 and the end face or conical surface of the perspective door 6; one end of the outer cylinder seal ring 2 is installed at the door opening of the outer cylinder 1, and the other end is installed at the door opening of the box body 21; the disc edge of the perspective door 6 is fixedly connected together through an inner fixing ring 3 and an outer fixing ring 4, and a door hinge 19 is connected on one side; the perspective door 6 is movably connected to a hinge seat 20 provided on the box body 21 through the door hinge 19; an elastic body 12 is provided between the glass door 5 and the perspective door 6; the perspective door 6 is in a "T" shape, including a disc-shaped body and a cylinder in the middle of the bottom. The bearing 13 is installed on the cylinder and fixedly connected through a small retaining ring 9. The small retaining ring 9 is movably connected to the skeleton seal ring 8; the disc-shaped body and the cylinder in the middle of the bottom are split bodies with movable connections. A hollow spline is provided at the center of the disc-shaped body. The cylinder is a spline hollow shaft 11, and the spline hollow shaft 11 passes through the spline hole of the disc-shaped body and is locked and connected through a threaded elbow 10 from the other side of the perspective door 6; the glass door 5 and the fixed plate 14 are a directly fixedly connected whole. The elastic body 12 is installed between the disc-shaped body and the cylinder in the middle of the bottom. The elastic body 12 is a spring; an elastic sealing strip is provided on the end face or conical surface of the glass door 5 and the perspective door 6 and on the contact surface with the inner cylinder 16 or the outer cylinder 1; a magnetic adsorption pair is provided in the inner cylinder seal ring 15 at the mouth of the glass door 5 and the inner cylinder 16.

[0042] The above-mentioned self-cleaning drum washing machine door assembly is a door assembly movably mounted on the rotating shaft of a hinge seat 20 installed on a cabinet 21 through a door hinge 19. The door assembly includes an external perspective door 6 and an internal glass door 5, etc. The glass door 5 is fixed together with a fixing plate 14 and a large retaining ring 7. A bearing 13 is installed inside the fixing plate 14 with limited position. A spline hollow shaft 11 is fixedly inserted into the inner ring of the bearing 13, and its inner ring is limited by a small retaining ring 9. A skeleton seal ring 8 is also movably installed between the small retaining ring 9 and the large retaining ring 7. Therefore, the glass door 5, the fixing plate 14 and the large retaining ring 7 can rotate hermetically around the spline hollow shaft 11. A threaded portion is also provided at the end of the spline hollow shaft 11. The glass door 5, the perspective door 6 and other parts are combined into a rotatable glass door assembly.

[0043] The perspective door 6 is fixed together with an inner fixing ring 3 and an outer fixing ring 4. There is an internal spline in the hole inside it that matches the spline hollow shaft 11. The above-mentioned glass door assembly is passed through the spline center hole of the perspective door 6 together, and is fixed by a threaded elbow 10 on the outside for outer limit. There is a certain distance between the inner glass door 5 and the perspective door 6 on the inside, and an elastic body 12 such as a spring or elastic rubber is also provided between the two. In this way, the elastic body 12 pushes the glass door 5 away from the perspective door 6.

[0044] At the mouth of the outer drum 1 of the washing machine, there is an outer drum seal ring 2, which is similar to that of an ordinary drum washing machine. One end of the outer drum seal ring 2 is connected to the mouth of the outer drum 1, and the other end is connected to the front door opening of the cabinet 21. When the conical surface of the perspective door 6 is matched, a sealed state is maintained.

[0045] At the mouth of the inner drum 16 of the washing machine, there is an inner drum seal ring 15. When the above-mentioned door assembly is closed, the end face and conical surface of the glass door 5 are matched with the inner drum seal ring 15.

[0046] When there is an installation error between the inner drum 16 and the outer drum 1 of the washing machine or a positional error between the cabinet and the inner and outer drums caused by vibration during operation, the elastic body 12 pushes the glass door assembly, always maintaining a tight fit between the glass door and the inner drum seal ring 15, so as not to leak water.

[0047] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A rotary sealing door for a self - cleaning drum washing machine, characterized in that: The described rotary sealing door is mounted and supported on the box body (21), and includes a perspective door (6) and a glass door (5). The glass door (5) can rotate relative to the perspective door (6). The rotary sealing door is matched with the mouths of the concentrically installed outer cylinder (1) and inner cylinder (16). A glass door (5) is provided on the front door opening of the inner cylinder (16). A fixing plate (14) is provided in the middle of the glass door (5). The fixing plate (14) is supported and connected to the perspective door (6) passing through the door opening of the outer cylinder (1) through a bearing (13). The glass door (5) and the fixing plate (14) can rotate relative to the perspective door (6); the glass door (5) is movably connected to the fixing plate (14) through a corrugated rubber ring (18) and an elastomer (12); an outer cylinder sealing ring (2) is provided at the contact between the outer cylinder (1) and the end face or conical surface of the perspective door (6). The middle part of the perspective door (6) has an axially-shaped structure, on which a bearing (13) is fixedly installed, and the inner ring of the bearing (13) is limited by a small retaining ring (9); the outer ring of the bearing (13) is fixedly installed in the fixing plate (14). The fixing plate (14) is placed on one side in the middle of the glass door (5). The outer ring of the bearing (13) is installed and limited by a large retaining ring (7). The large retaining ring (7) is placed on the other side in the middle of the glass door (5). A skeleton sealing ring (8) is provided in the large retaining ring (7). The skeleton sealing ring (8) is movably arranged between the large retaining ring (7) and the small retaining ring (9); the fixing plate (14), the large retaining ring (7) and the outer ring of the bearing (13) rotate relative to the perspective door (6) in a sealed manner together.

2. The spin-sealed door of the self-cleaning drum washing machine according to claim 1, characterized in that: An inner cylinder sealing ring (15) is provided at the contact between the inner cylinder (16) and the glass door (5).

3. The spin-sealed door of the self-cleaning drum washing machine according to claim 2, characterized in that: The inner cylinder sealing ring (15) is made of a material with sufficient elasticity and compression amount.

4. The spin-sealed door of the self-cleaning drum washing machine according to claim 1, characterized in that: One end of the outer cylinder sealing ring (2) is installed at the door opening of the outer cylinder (1), and the other end is installed at the door opening of the box body (21).

5. The spin-sealed door of the self-cleaning drum washing machine according to claim 1, wherein: The disc edge of the perspective door (6) is connected and fixed together by an inner fixing ring (3) and an outer fixing ring (4), and a door hinge (19) is connected on one side.

6. The spin-sealed door of the self-cleaning drum washing machine according to claim 1, wherein: The perspective door (6) is movably connected to a hinge seat (20) provided on the box body (21) through a door hinge (19).

7. The spin-sealed door of the self-cleaning drum washing machine according to any one of claims 1 to 6, characterized in that: The perspective door (6) is in a "T" shape, including a disc-shaped body and a cylinder in the middle of the bottom. The bearing (13) is installed on the cylinder and fixedly connected through a small retaining ring (9). The small retaining ring (9) is movably connected to the skeleton sealing ring (8).

8. The spin-sealing door of the self-cleaning drum washing machine according to claim 7, wherein: The disc-shaped body and the cylinder in the middle of the bottom are integrally connected as a whole.

9. The spin-sealed door of the self-cleaning drum washing machine according to claim 7, characterized in that: The disc-shaped body and the cylinder in the middle of the bottom are split bodies with movable connections. A hollow spline is provided at the center of the disc-shaped body. The cylinder is a spline hollow shaft (11). The spline hollow shaft (11) passes through the spline hole of the disc-shaped body and is locked and connected through a threaded elbow (10) from the other side of the perspective door (6).

10. The spin-sealed door of the self-cleaning drum washing machine according to claim 7, characterized in that: Elastic sealing strips are provided on the end face or conical surface of the glass door (5) and the contact surface with the inner cylinder (16) or outer cylinder (1) of the perspective door (6).

11. The spin-sealing door of the self-cleaning drum washing machine according to claim 7, characterized in that: A magnetic attraction pair is provided in the glass door (5) and the inner cylinder sealing ring (15) at the mouth of the inner cylinder (16).

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