WO2019085935A1

WO2019085935A1 - Laundry treating apparatus

Info

Publication number: WO2019085935A1
Application number: PCT/CN2018/112912
Authority: WO
Inventors: 张令全; 孙广彬; 张开宏
Original assignee: 青岛海尔洗衣机有限公司
Priority date: 2017-10-31
Filing date: 2018-10-31
Publication date: 2019-05-09
Also published as: CN107794723A; CN107794723B

Abstract

A laundry treating apparatus comprises a door lid (1) and a machine body (2). The door lid (1) and the machine body (2) are connected to each other by means of a hinge structure. The hinge structure comprises a stopping damping hinge (3) and a force-assisted damping hinge (4). The stopping damping hinge (3) comprises a hinge mount (31), a first shaft (32) fixedly connected to the hinge mount (31), and a damping device rotatably connected to the first shaft (32). A stopping device for controlling the door lid (1) to stop at different angles is disposed at a position where the first shaft (32) contacts the damping device. The force-assisted damping hinge (4) comprises an installing portion (42) fixed on another hinge mount, a second shaft (41) with one end thereof being fixed to the installing portion (42), and a rotating portion (43) rotatable about the second shaft (41) and fixedly connected to the door lid (1). The second shaft (41) is sleeved with a torsion spring (44) therearound. One end of the torsion spring (44) is connected to one end of the second shaft (41) away from the installing portion (42), and the other end of the torsion spring (44) is connected to the rotating portion (43) to rotate the torsion spring (44) to generate an acting force.

Description

Clothing treatment device

Technical field

The invention belongs to the field of household appliances, and in particular to a laundry treating device.

Background technique

The laundry treatment device is a cleaning appliance that uses mechanical energy to generate mechanical action to wash laundry. The household washing machine mainly consists of a box, a washing and dewatering bucket, a transmission system and a control system, but in the prior art, the washing machine is composed of an upper frame, a box body and a base. The upper, middle and lower parts are connected, wherein the upper frame is provided with a cover plate and the cover plate is provided with an opening and closing structure. However, the door of the existing washing machine cannot realize the parking function at any angle, even if an effort is made to locate an angle, Careful small external force will change the angle, especially the door body of the pulsator washing machine has downward gravity, it is more difficult to achieve the stop at any angle, and the door cover body is heavy, in the process of closing the door, under the action of gravity, the door The falling speed of the cover is fast, not only the impact sound is large, but also the door cover body is easily damaged, and sometimes the user's finger is caught, the safety of use is poor, and when the door is opened, the user needs to use a large force to use inconvenient.

Chinese Patent Application No. CN201620252492.8 discloses a pulsator washing machine and a door cover assembly thereof, the door cover assembly comprising: a work table, a door cover body and a damper, the working table is provided with a working port; the door cover body The utility model is pivotally arranged on the worktable to open and close the working port; the damper comprises a shaft core and a damping sleeve, the shaft core is connected with the worktable, the damping sleeve is connected with the door cover body and is sleeved on the shaft core to cover the door cover The body is pivoted relative to the shaft core and frictionally forms a damping force between the inner circumferential surface of the damping sleeve and the outer circumferential surface of the shaft core. However, the door cover of the technical solution cannot be parked at an arbitrary angle, is inconvenient to use, and has no power when the door is opened, and is more laborious to use.

The present invention has been made in view of the above.

Summary of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and to provide a laundry treatment device, the door cover can be parked at an arbitrary angle, and the effect of free fall when closing and assisting when opening the cover can be achieved.

In order to solve the above technical problem, the basic idea of the technical solution of the present invention is: a laundry treating device comprising a door cover 1 and a body 2, the door cover 1 and the body 2 being connected by a hinge structure, the hinge structure including a parking damping hinge 3 and assist the damping hinge 4.

The parking damper hinge 3 includes a hinge base 31, a first shaft 32 fixedly coupled to the hinge base 31, and a damper device rotatably coupled to the first shaft 32. The first shaft 32 and the damper contact portion are provided with control door covers 1 differently. Angled positioning station.

The parking device includes an angle control unit that has a multi-step rotation angle of the door cover, and a lock portion that cooperates with the angle control unit to position the door cover 1.

The damper device includes a damper housing 33 and a damper 34 fixed in the damper housing 33. The angle control portion is a sinking groove 35 on a circumferential surface of the first shaft 32 in contact with the damper 34; the locking portion includes a limiting hole 36 on the damper 34 contacting the circumferential surface of the first shaft 32, an elastic member 37 located in the limiting hole 36, and a limiting member 38 contacting the elastic member 37 and the sinking groove 35, and the elastic member The blocking member 39 of the 37 is away from the end of the first shaft 32, and the blocking member 39 is fixed to the damper 34.

The damper device includes a damper housing 33 and a damper 34 fixed in the damper housing 33. The angle control portion is a sinking groove 35 on an end surface of the first shaft 32 in contact with the damper 34; the locking portion includes a limiting hole 36 of the damper 34 contacting the end surface of the first shaft 32, an elastic member 37 located in the limiting hole 36, a limiting member 38 contacting the elastic member 37 and the sinking groove 35, and the elastic member 37 The blocking member 39 is fixed to the damper 34 away from the blocking member 39 at one end of the first shaft 32.

The elastic member 37 is a spring, the limiting member 38 is a limiting ball, and the blocking member 39 is a screw. The aperture of the limiting hole 36 near the sinking groove 35 is smaller than the diameter of the limiting ball, so that the limit is At the end of the hole, a part of the limiting ball can be leaked to prevent the limiting ball from leaking out of the limiting hole into the sinking groove without moving with the limiting hole.

The number of the sinking slots 35 is a positive integer multiple of the number of the limiting holes 36. When one limiting member falls into the sinking slot, the other limiting members also fall into the sinking slot at the same time.

The assist damping hinge 4 includes a mounting portion 42 fixed to the hinge base, a second shaft 41 fixed at one end to the mounting portion 42, a rotating portion 43 fixedly coupled to the door cover 1 rotatable about the second shaft 41, and a second shaft 41 The upper sleeve is provided with a torsion spring 44. One end of the torsion spring 44 is connected to one end of the second shaft 41 away from the mounting portion 42, and the other end is connected to the rotating portion 43, and the torsion spring 44 is rotated to generate a force.

The torsion spring 44 generates a force opposite to the closing direction when the door cover 1 is closed, and generates the same force as the opening direction when the door cover 1 is opened.

The parking damping hinge 3 and the assist damping hinge 4 are respectively located at both ends of the side of the door cover 1 that is in contact with the body 2.

After adopting the above technical solution, the present invention has the following advantageous effects compared with the prior art.

1. The stop damping hinge and the auxiliary damping hinge can avoid the door cover falling quickly, and the door cover can be smoothly and continuously closed;

2. The elastic member is arranged away from the end of the limiting member to prevent the elastic member and the limiting member from leaking out of the limiting hole;

3. The elastic member gives the movable space of the limiting member, and the limiting member moves between the sinking grooves to realize the positioning of the door cover;

4. The aperture of the limiting hole near the sinking groove is smaller than the diameter of the limiting ball, so that the end of the limiting hole can leak some of the limiting ball, preventing the limiting ball from leaking out of the limiting hole into the sinking groove without moving with the limiting hole. ;

5. The number of sinking slots is a positive integer multiple of the number of limiting holes, which can ensure that all the limiting members can fall into the sinking slot at the same time;

6. The limiting piece is a limiting ball. When the door cover is rotated, the shaft rotates with the door cover, and the limiting ball can roll away from the sinking groove to move in the direction of the limiting hole, and the resistance is small;

7. The torsion spring has the power-assisting effect, which reduces the force required to open the door cover, makes the door cover easier to open, especially on the heavy-weight door cover, the effect is more obvious, so that the door cover is not difficult to open, improve The user experience.

The specific embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

DRAWINGS

The drawings are intended to provide a further understanding of the invention, and are intended to be illustrative of the invention. It is apparent that the drawings in the following description are only some embodiments, and other drawings may be obtained from those skilled in the art without departing from the drawings. In the drawing:

Figure 1 is a schematic view of a washing machine of the present invention;

Figure 2 is a schematic view of the door cover of the present invention;

Figure 3 is a schematic view of the parking hinge damping hinge of the present invention;

Figure 4 is a partial structural view of Figure 3;

Figure 5 is a schematic view of another parking damper hinge of the present invention;

Figure 6 is a partial structural view of Figure 5;

Figure 7 is a schematic view of the assist damping hinge of the present invention.

In the figure: 1, door cover; 2, body; 3, parking damping hinge; 31, hinge seat; 32, first shaft; 33, damper shell; 34, damper; 35, sinking groove; 36, limit Hole; 37, elastic member; 38, limiting member; 39, blocking member; 4, assist damping hinge; 41, second shaft; 42, mounting portion; 43, rotating portion; 44, torsion spring.

It is to be understood that the drawings and the written description are not intended to limit the scope of the present invention in any way.

Detailed ways

The embodiments of the present invention will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is not intended to limit the scope of the invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. The orientation or positional relationship of the indications is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the invention and the simplified description, rather than indicating or implying that the device or component referred to has a specific orientation, in a specific orientation. The construction and operation are therefore not to be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; can be mechanical or electrical; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood in a specific case by those skilled in the art.

As shown in FIG. 1 to FIG. 7, a laundry treating apparatus comprising a pulsator washing machine, a drum washing machine and a clothes dryer comprises a door cover 1 and a body 2, and the body 2 comprises a casing, and the outer casing of the pulsator washing machine is the same The shaft is provided with inner and outer cylinders, the outer cylinder is for holding the washing water, the inner cylinder can be rotated, or the pulsator is arranged in the inner cylinder, the pulsator is rotated to realize the stirring and washing of the clothes, and the driving motor drives the inner cylinder or the pulsator through the transmission shaft. Rotating, the lower part of the outer casing is mounted with a foot for supporting the entire washing machine, and the upper part of the outer casing has a disc holder and a door cover assembly for opening or taking out the laundry. The door cover 1 of the laundry treating device is connected to the body 2 by a hinge structure, preferably two hinge structures are symmetrically arranged, the hinge structure comprises a parking damping hinge 3 and a power damping hinge 4, respectively located on the door cover 1 and the body 2 Both ends of the contact side.

The parking damping hinge 3 includes a hinge base 31, a first shaft 32, and a damping device. The hinge base 31 has a shaft hole. The first shaft 32 is partially inserted into the shaft hole of the hinge base 31 and fixed to the shaft hole. The shaft 32 and the hinge base 31 are not capable of generating a circumferential rotational movement of the shaft. The damping device is provided with a shaft hole. The first shaft 32 is partially inserted into the shaft hole of the damping device, and the first shaft 32 can be rotated relative to the damping device to dampen. The device 34 is inserted into the damper housing 33, and then the damper housing 33 is fastened to the door cover 1, or the damper 34 is directly inserted into the mounting groove of the door cover 1, or is connected to the door cover 1 by screwing or the like, the first shaft 32 and the damper device are provided with a parking device for controlling the door cover 1 to be positioned at different angles. The door handle 1 of the laundry treating device of the present invention can stand at an angle with the body 2, the 0°≤a≤180°, preferably 0°≤a≤90°, as the case may be, the opening degree of the drum washing machine Can be bigger.

The assisting damping hinge 4 includes a mounting portion 42 fixed to the hinge base, a second shaft 41 fixed to the mounting portion 42 at one end, a rotating portion 43 fixedly coupled to the door cover 1 rotatable about the second shaft 41, and a second The shaft 41 is sleeved with a torsion spring 44. One end of the torsion spring 44 is connected to one end of the second shaft 41 away from the mounting portion 42, and the other end is connected to the rotating portion 43, and the torsion spring 44 is rotated to generate a force.

Embodiment 1

As shown in FIG. 3 and FIG. 4, the damper device of the embodiment includes a damper shell 33 and a damper 34 fixed in the damper shell 33. The damper shell 33 is provided with a limiting slot, and the damper 34 is inserted into the damper. In the position groove, the damper 34 does not generate a rotational movement in the circumferential direction of the shaft in the limit groove, and the angle control portion is a sinking groove 35 on the circumferential surface of the first shaft 32 and the damper 34, and the sinking groove 35 Evenly distributed on the circumferential surface of the first shaft 32, the more the number of the sinking grooves 35, the more the angle at which the door cover 1 can be positioned; the locking portion includes the circumferential surface of the first shaft 32 on the damper 34. The limiting hole 36, the elastic member 37 located in the limiting hole 36, the limiting member 38 contacting the elastic member 37 and the sinking groove 35, and the blocking member 39 at the end of the elastic member 37 away from the first shaft 32 are limited. A small portion of the bit member 38 can be located in the sinking groove 35, most of which is located in the limiting hole 36, and the blocking member 39 is fixed on the damper 34, preferably a screw, to prevent the elastic member 37 and the limiting member 38 from leaking out. The number of 35 is a positive integer multiple of the number of the limiting holes 36, ensuring that all of the limiting members 38 fall into the sinking groove 35 at the same time.

The limiting member 38 is preferably a limiting ball, and the limiting hole 36 is preferably a cylindrical hole. The contact hole of the limiting hole 36 and the sinking groove 35 is smaller than the diameter of the limiting ball, so that the limiting ball can partially leak out of the limiting hole into the sinking slot. In the 35, the sinking groove 35 is preferably a spherical crown, the size of the sinking groove 35 is larger than the portion where the limiting ball leaks, the elastic member 37 is preferably a spring, the limiting ball and the spring are not fixed integrally, and the limiting ball can be in the spring and the sinking groove. Scroll between 35.

Embodiment 2

As shown in FIG. 5 and FIG. 6, the damper device of the embodiment includes a damper shell 33 and a damper 34 fixed in the damper shell 33. The damper shell 33 is provided with a limiting slot, and the damper 34 is inserted into the damper. In the position groove, the damper 34 does not generate a rotational movement in the circumferential direction of the shaft in the limiting groove, and the angle control portion is a sinking groove 35 on the end surface of the first shaft 32 contacting the damper 34, and the sinking groove 35 is uniform. Distributed on the end face of the first shaft 32, the more the number of the sinking grooves 35, the more the angle at which the door cover 1 can be positioned; the locking portion includes a limit on the damper 34 that is in contact with the end surface of the first shaft 32. The hole 36, the elastic member 37 located in the limiting hole 36, the limiting member 38 contacting the elastic member 37 and the sinking groove 35, the blocking member 39 at the end of the elastic member 37 away from the first shaft 32, and the limiting member 38 A small portion may be located in the sinking groove 35, most of which is located in the limiting hole 36, and the blocking member 39 is fixed on the damper 34, preferably a screw, to prevent the elastic member 37 and the limiting member 38 from leaking out, and the number of the sinking grooves 35 As a positive integer multiple of the number of the limiting holes 36, it is ensured that all the limiting members 38 fall into the sinking groove 35 at the same time.

Embodiment 3

When the user pushes the door cover 1 or the door cover 1, the force is greater than the preset value, the limit ball is squeezed, and the spring is compressed, leaving the sinking groove 35, and entering the adjacent sinking groove 35. As the force continues, the limit is limited. The ball repeats this movement continuously until the door cover 1 is opened to a predetermined angle. At this time, the spring returns to deformation, and the squeezing limit ball re-enters the sinking groove 35 to realize the parking of the door cover 1.

Embodiment 4

As shown in FIG. 7 , the embodiment provides a door cover device with a power damping function, the door cover device comprises a door cover 1 , a hinge seat on the laundry treatment device, and a power damping hinge connecting the door cover 1 and the hinge seat 4, the assist damping hinge 4 includes a torsion spring 44, the assist damping hinge 4 further includes a second shaft 41, a mounting portion 42 fixed to one end of the second shaft 41, and a rotating portion 43 rotatable about the second shaft 41, The torsion springs 44 are sleeved on the second shaft 41 and are respectively connected to one end of the second shaft 41 and the rotating portion 43 to rotate the torsion spring 44 to generate a force. One end of the torsion spring 44 is fixed to the second shaft 41, and the other end is connected to the rotating portion 43, and the rotation of the rotating portion 43 along the circumferential direction of the second shaft 41 causes the rotation of the torsion spring 44 to change, thereby generating a force, and the door cover 1 During the process from opening to closing, the assist damping hinge 4 rotates, and the torsion spring 44 gradually changes from the diastolic state to the tension state, generating a force opposite to the closing direction of the door cover 1, and the force is less than the door cover 1 Its own gravity.

When the door cover 1 is in the open state, the torsion spring 44 is in a relaxed state. During the closing process of the door cover 1, the torsion spring 44 generates a tensioning force, and the tensioning force acts on the rotating device, and the rotating device opens the door cover. a force of the direction, while the tension generated by the torsion spring 44 is less than the gravity of the door cover 1 itself, the door cover 1 can still move freely in the closing direction, but as the door cover 1 continues to close, the upward direction The tension is getting larger and larger, and the gravitational acceleration is getting smaller and smaller, so that the increasing tension exerts a damping effect, preventing the door cover 1 from closing quickly, causing a safety accident or noise.

When the door cover 1 is in the closed state, the torsion spring 44 generates the maximum tension force on the door cover 1 at this time, but is still smaller than the downward gravity of the door cover 1 itself, so the door cover 1 does not automatically open, since this time The tightening force counteracts the downward gravity of most of the door cover 1 itself, so when the door cover 1 is opened, the door cover 1 can be lifted only by overcoming a small force, so that the tension generated by the torsion spring 44 generates a boosting force. effect.

In the present embodiment, the torsion spring 44 belongs to a coil spring, and the ends are fixed to other components which pull them back to the initial position when the other components rotate about the center of the spring, generating torque or rotational force. The torsion spring can store and release angular energy or statically fix a device by rotating the force arm around the central axis of the spring. Such springs are usually dense, but there is a pitch between the coils to reduce friction. They create resistance to rotating or rotating external forces. The direction of rotation of the torsion spring (clockwise or counterclockwise) is designed according to the application requirements to determine the direction of rotation of the spring.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and any technology that is familiar with the present patent. Those skilled in the art can make some modifications or modifications to equivalent embodiments by using the technical content of the above-mentioned hints without departing from the technical scope of the present invention, but the technology according to the present invention does not deviate from the technical solution of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments are still within the scope of the present invention.

Claims

A laundry treating apparatus comprising a door cover (1), a body (2), and the door cover (1) and the body (2) are connected by a hinge structure, wherein the hinge structure comprises a parking damping hinge (3) and Assist the damping hinge (4).
A laundry treating apparatus according to claim 1, wherein the parking damping hinge (3) comprises a hinge base (31), a first shaft (32) fixedly coupled to the hinge base (31), and the first The shaft (32) is rotatably connected to the damper device, and the first shaft (32) and the damper device are provided with a parking device for controlling the door cover (1) to be positioned at different angles.
A laundry treating apparatus according to claim 2, wherein said parking means comprises an angle control portion for causing the door cover to have a plurality of rotation angles, and a locking portion for positioning the door cover (1) with the angle control portion .
A laundry treating apparatus according to claim 3, wherein said damper means comprises a damper housing (33) and a damper (34) fixed in the damper housing (33), the angle control portion being located a sinking groove (35) on a circumferential surface of the first shaft (32) in contact with the damper (34); the locking portion includes a limit on the damper (34) in contact with the circumferential surface of the first shaft (32) The hole (36), the elastic member (37) located in the limiting hole (36), the limiting member (38) contacting the elastic member (37) and the sinking groove (35), and the elastic member (37) are located away from each other A blocking member (39) at one end of the first shaft (32), the blocking member (39) is fixed to the damper (34).
A laundry treating apparatus according to claim 3, wherein said damper means comprises a damper housing (33) and a damper (34) fixed in the damper housing (33), the angle control portion being located a sinking groove (35) on an end surface of the first shaft (32) in contact with the damper (34); the locking portion includes a limiting hole on the damper (34) in contact with an end surface of the first shaft (32) ( 36) The elastic member (37) located in the limiting hole (36), the limiting member (38) contacting the elastic member (37) and the sinking groove (35), and the elastic member (37) away from the first A blocking member (39) at one end of the shaft (32) and a blocking member (39) are fixed to the damper (34).
A laundry treating apparatus according to claim 4 or 5, wherein the elastic member (37) is a spring, the limiting member (38) is a limiting ball, and the blocking member (39) is a screw, the aperture of the limiting hole (36) near the sinking groove (35) is smaller than the diameter of the limiting ball.
A laundry treating apparatus according to claim 4 or 5, wherein the number of said sinking grooves (35) is a positive integer multiple of the number of the limiting holes (36).
A laundry treating apparatus according to claim 1, wherein the assist damping hinge (4) comprises a mounting portion (42) fixed to the hinge base, and a second shaft fixed at one end to the mounting portion (42) (41) a rotating portion (43) fixedly coupled to the door cover (1) rotatable about the second shaft (41), and a torsion spring (44) disposed on the second shaft (41), the end of the torsion spring (44) being The second shaft (41) is connected away from one end of the mounting portion (42), and the other end is connected to the rotating portion (43) to rotate the torsion spring (44) to generate a force.
A laundry treating apparatus according to claim 8, wherein said torsion spring (44) generates a force opposite to a closing direction when the door cover (1) is closed, and is generated when the door cover (1) is opened. The same force as the opening direction.
A laundry treating apparatus according to any one of claims 1-9, characterized in that said parking damping hinge (3) and power assisting hinge (4) are respectively located on the door cover (1) and the body (2) Both ends of the contacted side.