Self-locking door of washing drum of a no-clean drum washing machine

Abstract

The invention discloses a self-locking door for a washing drum of a no-clean drum washing machine, relates to the technical field of water-saving washing machines, overcomes the defect of water leakage in existing water-saving drum washing machines, comprises a washing drum, and a ring-shaped front plate is arranged at the front end of the washing drum, characterized in that a door cover is arranged on the front plate through a fixed ring, one side of the door cover is movably mounted on the fixed ring through a hinge, an automatic locking component is arranged between the door cover and the fixed ring, and a handle is arranged on the other side of the door cover through a hinge, and is buckled on the fixed ring through an automatic locking component linked to the handle; the product of the invention, by arranging a self-locking door on the washing drum, not only is it convenient to take and put clothes, but also can prevent leakage of washing water during washing.

Description

Technical Field

[0001] The invention relates to the technical field of water-saving washing machines, and in particular to a self-locking door of a washing drum of a wash-free drum washing machine. Background Art

[0002] At present, the washing drum of the no-clean drum washing machine needs to rotate to participate in washing, but the washing water is easy to leak during washing, which not only wastes water resources but also does not wash the clothes thoroughly. Therefore, how to set the washing drum so that the clothes can be easily taken in and out and the washing water can be prevented from leaking during washing is a technical problem that needs to be solved urgently. Summary of the invention

[0003] The purpose of the present invention is to provide a self-locking door for a washing drum of a no-clean drum washing machine. The self-locking door is arranged on the washing drum, which not only facilitates the taking and placing of clothes, but also prevents leakage of washing water during washing.

[0004] According to the above purpose, the technical solution of the present invention is: a self-locking door of the washing drum of a no-clean drum washing machine, comprising a washing drum, a ring-shaped front plate is provided at the front end of the washing drum, and its characteristics are: a door cover is provided on the front plate through a fixed ring, one side of the door cover is movably mounted on the fixed ring through a hinge, an automatic locking component is provided between the door cover and the fixed ring, and a handle is provided on the other side of the door cover through a hinge, and is buckled on the fixed ring through an automatic locking component linked to the handle.

[0005] Furthermore, the automatic locking component includes a torsion spring, a fixed hole and a movable hole arranged at the side end of the hinge, the fixed hole is arranged on the fixed ring, the movable hole is arranged on the door cover, one end of the torsion spring is movably arranged in the fixed hole, and the other end is movably arranged in the movable hole.

[0006] Furthermore, the automatic locking component includes a bayonet, a reset compression spring, a bayonet hole and a hook head. The handle is "L"-shaped and has a guide groove at its inner end. The bayonet hole is arranged in the door cover behind the handle. The bayonet is movably installed in the bayonet hole through the reset compression spring. One end of the bayonet is inserted into the guide groove of the "L"-shaped handle and is linked to the handle. The fixing ring is provided with a hook head. When the door cover is in contact with the fixing ring, the other end of the bayonet is engaged with the hook head.

[0007] Furthermore, a boss is provided at the tail of the bayonet, the outer diameter of which is larger than the inner diameter of the bayonet hole, and is engaged with the return compression spring.

[0008] Furthermore, the end of the latch is provided with a chamfer for easy engagement with the hook head.

[0009] Alternatively, further, the automatic locking component includes a claw, a small torsion spring and a hook head, the claw is provided with a claw shaft for rotational installation, and two arrow-shaped claws and a square claw with a vertical angle are provided on the side perpendicular to the claw shaft, the arrow-shaped surface is a guide slope, the inner inner surface thereof is a locking surface, the inner outer surface is a limiting surface, and the side of the square claw is a positioning surface, the claw shaft is movably installed on the handle through a small torsion spring, one end of which is placed on the vertical wall on the door cover, and the other end is placed on the limiting surface, the fixing ring is provided with a hook head, and when the door cover is fitted with the fixing ring, the claw slides over the hook head under the action of the guide slope, the locking surface of the claw engages with the hook head, and the positioning surface engages with the hook head for fitting and positioning.

[0010] Furthermore, a circle of sealing strip is provided on the fixing ring.

[0011] Furthermore, the fixing ring and the door cover are magnetically attracted to each other.

[0012] Furthermore, a middle hole is provided in the middle of the door cover.

[0013] Compared with the prior art, the advantages and beneficial effects of the present invention are as follows: the product of the present invention, by arranging a self-locking door on the washing drum, not only facilitates the taking and placing of clothes, but also prevents leakage of washing water during washing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work:

[0015] Figure 1 This is a schematic cross-sectional view of a first embodiment of the product of the present invention;

[0016] Figure 2 This is a front structural schematic diagram of a first embodiment of the product of the present invention;

[0017] Figure 3 This is a schematic cross-sectional view of the door cover of the first embodiment of the present invention when it is opened and self-locked;

[0018] Figure 4 This is a schematic cross-sectional view of the door cover of the first embodiment of the present invention when it is fully opened;

[0019] Figure 5 This is a cross-sectional structural schematic diagram of a second embodiment of the product of the present invention;

[0020] Figure 6 This is a front structural schematic diagram of a second embodiment of the product of the present invention;

[0021] Figure 7 This is a schematic cross-sectional view of the door cover of the second embodiment of the present invention when it is closed;

[0022] Figure 8 This is a schematic cross-sectional view of the door cover of the second embodiment of the present invention when it is opened;

[0023] Fig. 9 This is a schematic cross-sectional view of the second embodiment of the present invention when the door cover is opened;

[0024] Fig.10 This is a schematic diagram of the claw structure of the second embodiment of the product of the present invention.

[0025] Among them: 1. washing drum; 2. front plate; 3. fixing ring; 4. door cover; 5. handle; 6. middle hole; 7. sealing strip; 8. hinge; 9. torsion spring; 10. fixing hole; 11. movable hole; 12. magnetic suction; 13. hook head; 15. latch; 16. reset spring; 17. latch hole; 19. claw; 20. small torsion spring; 191. claw shaft; 192. locking surface; 193. positioning surface; 194. guide slope; 195. limit surface. DETAILED DESCRIPTION

[0026] Combination Figures 1 to 4 , is a structural schematic diagram of a first embodiment of a self-locking door of a washing drum of a non-cleaning drum washing machine of the present invention, comprising a washing drum 1, the washing drum 1 is a non-porous structure, a front end of the washing drum 1 is provided with an annular front plate 2, a door cover 4 is provided on the front plate 2 through a fixed ring 3, one side of the door cover 4 is movably mounted on the fixed ring 3 through a hinge 8, an automatic locking component is provided between the door cover 4 and the fixed ring 3, the other side of the door cover 4 is provided with a handle 5 through a hinge, and is buckled on the fixed ring 3 through an automatic locking component linked to the handle 5, and the door cover 4 can rotate around the door hinge 8 at a certain angle; the door cover 4 has a movable hole 11 on the rear side of the door hinge 8, and the fixed ring 3 has a fixed hole 10, and one end of the torsion spring 9 is movably inserted into the fixed hole 10, and the other end is movably inserted into the movable hole 11, as shown in FIG. Figure 1 As shown, the door hinge 8, the movable hole 11 and the fixed hole 10 form a triangle. According to the working principle of the torsion spring, the force F of the torsion spring 9 on the movable hole 11 of the rear hinge of the door cover 4 is Figure 1 As shown, the rear end of the door cover 4 is away from the fixing ring 3, while the front end tends to press against the fixing ring 3. There is a sealing strip 7 on the fixing ring 3 to seal the door cover 4 and the fixing ring 3. When the door cover 4 rotates around the door hinge 8 at an angle greater than 90°, as shown in FIG. Figure 4As shown, the door hinge 8, the movable hole 11 and the fixed hole 10 also form a triangle, but the force direction of the door cover 4 at the position of the movable hole 11 changes, so that the door cover 4 has a tendency to open. Under the control of the stop block, the door cover 4 has two stable states: closed and fully opened. Figure 1 and Figure 4 shown.

[0027] The front end of the door cover 4 is movably mounted with a handle 5 through a hinge 8, and a guide groove is provided on the middle vertical surface of the handle 5. A bayonet 15 is movably mounted in a bayonet hole 17 on the vertical surface of the groove in front of the door cover 4, and can move a certain distance along the bayonet hole 17. The end of the bayonet 15 is a boss, and its diameter is larger than the diameter of the bayonet hole on the handle 5. Therefore, when the handle 5 rotates around the hinge 8, the side of the guide groove prompts the bayonet 15 to move axially. The force that prompts the handle 5 to rotate is the force of the external manual operation. When this force disappears, the bayonet 15 is restored to its original position by the force of the return compression spring 16 installed thereon. The front end of the bayonet 15 is chamfered. When the door cover 4 is closed, the force of the torsion spring 9 on the rear side causes the front end to have a downward force, and the mutual attraction between the magnet 12 fixed on the fixing ring 3 and the magnet 2 12 fixed on the door cover 4 causes the bayonet 15 to generate an axial component along the inclined surface of the hook head 13 on the fixing ring 3, overcome the force of the return compression spring 16, move the bayonet 15, slide under the barb 13, and lock the door cover 4. When the operator pulls the handle 5 outward by hand, the handle 5 rotates around the hinge 8, and the guide groove on the vertical surface of the handle 5 pushes the bayonet 15 to overcome the force of the return compression spring 16 and move axially, disengage from the barb 13, and then the force on the handle 5 causes the door cover 4 to overcome the attraction of the magnet and the torsion of the torsion spring 9 and rotate around the door hinge 8. After passing the inflection point, the attraction of the magnet disappears, and the force of the torsion spring 9 turns to the opposite direction. The inflection point is when the door hinge 8, the fixed hole 10 and the movable hole 11 are in a straight line.

[0028] Combination Figures 5 to 10 , which is a structural schematic diagram of a second embodiment of the self-locking door of the washing drum of the no-clean drum washing machine of the present invention. The claw-type door cover of the no-clean drum washing machine is composed of a washing drum 1, a front plate 2, a fixing ring 3 and a door cover 4 as in the first embodiment. The rear portion thereof is also a structure composed of a torsion spring 9 and a door hinge 8. The difference is that the handle 5 at the front is different. The handle 5 is movably mounted on the door cover 4 through the hinge 8 and can be rotated around the hinge 8 at a certain angle. A pair of holes for mounting claws 19 are also provided on the handle 5. The claws 19 are provided with small torsion springs 20 movably mounted on the holes on the handle 5.

[0029] The structure of claw 19 is as follows Fig.10As shown, it is composed of a claw shaft 191, a locking surface 192, a positioning surface 193, a guide slope 194, and a limit surface 195; a small torsion spring 20 is mounted on the claw shaft 191, one end of which is placed on the vertical wall on the door cover, and the other end is placed on the limit surface 195 to form a torque trend.

[0030] like Figure 5 As shown, the claw door cover of the no-clean drum washing machine is in a closed state, the locking surface 192 is placed under the barb 13, the small torsion spring 20 pushes the claw 19, and the claw 19 is locked, that is, the door cover 4 is in a locked state, and the washing machine is in an operating cycle.

[0031] like Figure 8 As shown in the figure, the claw-type door cover of the non-cleaning drum washing machine is in the open state. The operator pulls the handle 5, the G force is outward, the handle 5 rotates around the hinge to a certain angle, forcing the claw 19 to rotate to a certain angle, and the locking surface 192 is separated from the straight surface of the barb 13. At this time, the door cover 4 can be opened; it is opened until the visual Fig. 9 The picture shown is of the claw-type door cover of the no-clean drum washing machine in the open state.

[0032] When closed, Figure 7 As shown, the torsion of the torsion spring 9 makes the door cover 4 have a force perpendicular to the surface at the front end, and external forces such as magnets, the guide inclined surface 194 is on the inclined surface of the barb 13, and after being subjected to force, it overcomes the torsion of the small torsion spring 20, and the claw rotates through an angle until the guide inclined surface 194 at the end is separated from the inclined surface of the barb 13, and under the action of the small torsion spring 20, the locking surface 192 is stuck in the straight surface of the barb 13 and locked. The positioning surface 193 limits the position of the claw 19.

Claims

1. A self-locking door for a washing drum of a no-clean drum washing machine, comprising a washing drum (1), wherein a front end of the washing drum (1) is provided with an annular front plate (2), characterized in that: The front plate (2) is provided with a door cover (4) via a fixedly connected fixing ring (3); one side of the door cover (4) is movably mounted on the fixing ring (3) via a door hinge (8); an automatic locking component is provided between the door cover (4) and the fixing ring (3); the other side of the door cover (4) is provided with a handle (5) via a hinge, and is buckled on the fixing ring (3) via an automatic locking component linked to the handle (5); The automatic locking component comprises a torsion spring (9), a fixed hole (10) and a movable hole (11) arranged at the side end of the door hinge (8); the fixed hole (10) is arranged on the fixed ring (3), and the movable hole (11) is arranged on the door cover (4); one end of the torsion spring (9) is movably arranged in the fixed hole (10), and the other end is movably arranged in the movable hole (11); The door hinge (8), the movable hole (11) and the fixed hole (10) form a triangle. Under the action of the torsion spring (9), the rear end of the door cover (4) moves away from the fixed ring (3) and the front end tends to be pressed toward the fixed ring (3). After the door cover (4) rotates around the door hinge (8) at an angle greater than 90°, the door cover (4) tends to open at the position of the movable hole (11). The automatic locking component comprises a bayonet (15), a return spring (16), a bayonet hole (17) and a hook head (13); the handle (5) is in an "L" shape, and a guide groove is formed at its inner end; the bayonet hole (17) is arranged in the door cover (4) at the rear of the handle (5); the bayonet (15) is movably installed in the bayonet hole (17) through the return spring (16); one end of the bayonet (15) is inserted into the guide groove of the "L"-shaped handle (5) and is linked to the handle (5); the fixing ring (3) is provided with a hook head (13); when the door cover (4) and the fixing ring (3) are fitted together, the other end of the bayonet (15) is engaged with the hook head (13); when the handle (5) is pulled outward and the handle (5) rotates, the guide groove pushes the bayonet (15) to overcome the force of the return spring (16) and move axially to disengage from the hook head (13); Or, the automatic locking component comprises a claw (19), a small torsion spring (20) and a hook head (13), the claw (19) is provided with a claw shaft (191) for rotational installation, and two arrow-shaped protruding claws and a square protruding claw are provided on the side perpendicular to the claw shaft (191) at a vertical angle, the arrow-shaped surface is a guide inclined surface (194), the inner side surface thereof is a locking surface (192), the inner side outer surface is a limiting surface (195), and the side surface of the square protruding claw is a positioning surface (193), the claw shaft (191) is movably installed on the handle (5) through the small torsion spring (20), and one end of the small torsion spring (20) is placed on the door cover (4 ) on a vertical wall, and the other end is placed on a limiting surface (195); a hook head (13) is provided on the fixing ring (3); when the door cover (4) is fitted with the fixing ring (3), the clamping claw (19) slides over the hook head (13) under the action of the guiding inclined surface (194), the locking surface (192) of the clamping claw (19) is engaged with the hook head (13), and the positioning surface (193) is engaged with the hook head (13) in a fitting and positioning manner; the handle (5) is pulled, the handle (5) is rotated to a certain angle, forcing the clamping claw (19) to rotate to a certain angle, the locking surface (192) is separated from the straight surface of the hook head (13), and the door cover (4) is opened.

2. The self-locking door of the washing drum of the no-clean drum washing machine according to claim 1, characterized in that: The tail of the bayonet (15) is provided with a boss, the outer diameter of which is larger than the inner diameter of the bayonet hole (17), and is engaged with the return compression spring (16).

3. The self-locking door of the washing drum of the no-clean drum washing machine according to claim 1, characterized in that: The end of the latch (15) is provided with a chamfer for easy engagement with the hook head.

4. The self-locking door of the washing drum of the no-clean drum washing machine according to any one of claims 1 to 3, characterized in that: The fixing ring (3) is provided with a circle of sealing strip (7).

5. The self-locking door of the washing drum of the no-clean drum washing machine according to any one of claims 1 to 3, characterized in that: The fixing ring (3) and the door cover (4) have magnetic attraction (12) on them that attract each other.

6. The self-locking door of the washing drum of the no-clean drum washing machine according to any one of claims 1 to 3, characterized in that: A middle hole (6) is provided in the middle of the door cover (4).

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