CN220365460U - Door opening device and dish washing machine - Google Patents

Abstract

The utility model discloses a door opening device and a dish washing machine, wherein the door opening device is arranged between a door body and a machine body of a household appliance, and comprises: a pull rope, an elastic piece and a control component. Wherein, the both ends of stay cord are rope one end and rope both ends respectively, and rope one end is used for connecting the organism, and rope both ends are used for connecting the door body, and the stay cord is connected to the elastic component. The control component is suitable for being arranged on the machine body and comprises a movable part, the movable part can contact the pull rope, and the movable part can adjust the pulling amplitude of the pull rope in the activity so as to adjust the expansion and contraction amount of the elastic part. The door opening device can automatically realize complete opening and closing of the door body while guaranteeing that the opening angle of the door body is stable.

Description

Door opening device and dish washing machine

Technical Field

The utility model relates to the technical field of household appliances, in particular to a door opening device and a dish washing machine.

Background

With the development of household appliances, the automatic switching technology is increasingly applied to household appliance products. However, the existing automatic door opening and closing technology can only achieve partial opening and closing of the door body of the household appliance, for example, the door opening of the door body of the household appliance is automatically controlled, and complete control of door opening and closing cannot be achieved.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the door opening device which can automatically realize the complete opening and closing of the door body while ensuring the stable opening angle of the door body.

The utility model also provides a dish washer with the door opening device.

According to an embodiment of the present utility model, a door opening device is disposed between a door body and a body of a home appliance, the door opening device including: the two ends of the pull rope are respectively provided with one rope end and two rope ends, one rope end is used for being connected with the machine body, and the two rope ends are used for being connected with the door body; the elastic piece is connected between one end of the rope and the machine body, or between the two ends of the rope and the door body; the control assembly is suitable for being arranged on the machine body, the control assembly comprises a movable piece, the movable piece can be in contact with the pull rope, and the movable piece is configured to adjust the pulling amplitude of the pull rope in the activity so as to adjust the expansion and contraction amount of the elastic piece.

According to the door opening device provided by the embodiment of the utility model, the control component is arranged, so that the deformation of the elastic component can be changed along with the movement of the movable component when the movable component in the control component moves. When the movable piece drives the elastic piece to be elongated, the tension provided by the elastic piece is increased, namely the moment of the tension provided by the pull rope is increased, and meanwhile, the opening angle of the door body is increased, so that the moment of the tension provided by the pull rope is increased relative to the moment of the rotation center of the door body, and the moment of the tension provided by the pull rope and the moment of the door body relative to the rotation center of the door body can be balanced in the opening process of the door body; correspondingly, when the movable piece drives the elastic piece to be shortened, the tension provided by the elastic piece is reduced, namely the moment of the tension provided by the pull rope is reduced, and meanwhile, the opening angle of the door body is reduced, so that the moment of the door body relative to the rotation center of the door body is reduced, and the moment of the tension provided by the pull rope and the moment of the door body relative to the rotation center of the door body can be balanced in the closing process of the door body. Therefore, the elastic force provided by the elastic piece can be changed through the movement of the movable piece, so that the opening angle of the door body is changed, and meanwhile, the stress balance of the door body is kept, so that the door body can be automatically and completely opened and closed.

In some embodiments, the movable member is in contact with the pull cord throughout its movement.

In some embodiments, the moveable member is a rotating member or a moving member.

Further, the movable part is a cam, and the control assembly comprises a first motor connected with the cam.

Further, the control assembly includes: the screw rod is connected with the second motor, and the movable piece is a nut matched with the screw rod.

In some embodiments, the control assembly comprises: the third motor is a linear motor, and the movable piece is connected to the third motor.

Further, the movable part is a movable part, and the door opening device further comprises a sliding rail matched with the movable part.

In some embodiments, the door opening device further comprises two pressing wheels in contact with the pull rope, and the movable piece is distributed between the two pressing wheels in the length direction of the pull rope.

In some embodiments, the door opening device further includes a steering wheel, and the steering wheel is located between the movable member and the two ends of the rope in the length direction of the pulling rope, and the steering wheel is used for changing the extending direction of the pulling rope.

According to an embodiment of the present utility model, a dishwasher includes: the machine body is provided with a rotating shaft; the lower end of the door body is connected to the rotating shaft; the door opening device is the door opening device in the above embodiment, two ends of the rope are connected to the door body, and two ends of the rope are spaced apart from the rotating shaft.

According to the dish washer provided by the embodiment of the utility model, the door opening device is arranged, and the door opening device can change the elastic force provided by the elastic piece, so that the automatic control of opening and closing of the door body is realized.

In some embodiments, the dishwasher further comprises: and the sensor is suitable for detecting the opening angle of the door body relative to the machine body, and is electrically connected with the control assembly.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of the structure of a movable member of some embodiments of a dishwasher at a first angle;

FIG. 2 is an enlarged block diagram of the movable member of FIG. 1;

FIG. 3 is a schematic view of the structure of the movable member of some embodiments of a dishwasher at a second angle;

FIG. 4 is an enlarged block diagram of the movable member of FIG. 3;

FIG. 5 is a schematic view of a dishwasher of other embodiments;

fig. 6 is a schematic structural view of a dishwasher in accordance with still other embodiments.

Reference numerals:

dish washer 1000,

Door opening device 100,

A pull rope 11, one rope end 111, two rope ends 112,

Elastic member 12, movable member 13, pinch roller 14, steering roller 15, clamping member 16,

A second motor 21, a screw rod 22, a third motor 23, a slide rail 24,

A sensor 40,

The door comprises a machine body 200, a rotating shaft 210, a door body 300 and a door inner plate 310.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center," "length," "upper," "lower," "front," "rear," "inner," "outer," and the like indicate an orientation or angular relationship based on that shown in the drawings, merely for convenience in describing the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

A door opening device 100 and a dishwasher 1000 according to an embodiment of the present utility model are described below with reference to the accompanying drawings.

As shown in fig. 1 to 4, the door opening device 100 according to the embodiment of the present utility model is provided between a door 300 and a body 200 of a home appliance, and includes: a pull cord 11, an elastic member 12 and a control assembly.

The two ends of the pull rope 11 are a rope end 111 and a rope two end 112, wherein the rope end 111 is used for connecting the machine body 200, and the rope two end 112 is used for connecting the door body 300. The elastic member 12 is connected between the rope end 111 and the body 200, or the elastic member 12 is connected between the rope end 112 and the door 300. For example, in fig. 1, one end of the elastic member 12 is connected to the body 200, and the other end of the elastic member 12 is connected to one end 111 of the string.

The control assembly is adapted to be provided on the machine body 200, the control assembly comprising a movable member 13, the movable member 13 being capable of contacting the pull cord 11. The movable member 13 is configured to pull the pull cord 11 in the movement, and the pull amplitude of the pull cord 11 can be adjusted when the movable member 13 moves, thereby adjusting the amount of expansion and contraction of the elastic member 12.

It will be appreciated that, as the opening angle of the door 300 increases, the moment of the door 300 relative to the rotation center thereof increases, and at the same time, the elastic force provided by the elastic member 12 increases with the increase of the deformation amount thereof, during the opening process of the door 300, the door 300 drives the two ends 112 of the rope, the pulling force of the door 300 applied to the two ends 112 of the rope is transferred to one end 111 of the rope through the pulling rope 11, and the one end 111 of the rope drives the elastic member 12 to deform, so that the pulling force provided by the elastic member 12 increases, even if the pulling force provided by the two ends 112 of the rope increases, the moment generated by the pulling rope 11 relative to the door 300 can synchronously increase, and the moment of the door 300 relative to the rotation center thereof remains balanced, so that the door 300 can remain stable at any opening angle.

However, when the door 300 is stabilized at any one of the opening angles, the moment of the pulling force provided by the pulling rope 11 balances and remains unchanged with the moment of the door 300 relative to the rotation center thereof, and an external force needs to be applied to the door 300 to change the opening angle of the door 300, and accordingly, in the actual use of the household appliance, the door 300 needs to be manually pulled in the process of opening to the required angle, and accordingly, the door 300 needs to be manually pushed in the process of closing.

In the door opening device 100, when the movable member 13 in the control assembly moves, the deformation amount of the elastic member 12 can be changed along with the movement of the movable member 13. When the pulling amplitude of the movable piece 13 against the pull rope 11 is increased, the elastic piece 12 stretches, the pulling force provided by the elastic piece 12 increases, namely, the moment of the pulling force provided by the pull rope 11 increases, and meanwhile, the opening angle of the door body 300 increases, so that the moment of the pulling force provided by the pull rope 11 increases relative to the moment of the rotation center of the door body 300, and the moment of the pulling force provided by the pull rope 11 and the moment of the pulling force provided by the door body 300 relative to the rotation center of the door body 300 can be balanced in the opening process of the door body 300; correspondingly, when the pulling amplitude of the movable member 13 against the pull rope 11 is reduced, the elastic member 12 is shortened, the pulling force provided by the elastic member 12 is reduced, that is, the moment of the pulling force provided by the pull rope 11 is reduced, and meanwhile, the opening angle of the door 300 is reduced, so that the moment of the pulling force provided by the pull rope 11 is reduced relative to the moment of the rotation center of the door 300, and the moment of the pulling force provided by the pull rope 11 and the moment of the pulling force relative to the rotation center of the door 300 can be balanced in the closing process of the door 300.

Thus, the elastic force provided by the elastic member 12 can be changed by the movement of the movable member 13, so that the opening angle of the door 300 is changed, and the balance of the stress of the door 300 is maintained, thereby realizing the automatic complete opening and closing of the door 300.

In the scheme of the utility model, the movable piece 13 can be contacted with the pull rope 11 in a part of the travel and not contacted with the pull rope 11 in a part of the travel during the movement.

In other embodiments, as shown in fig. 2 and 4, the movable member 13 is in contact with the pull cord 11 throughout its movement. In this way, the movable piece 13 does not have the moment from the moment of not contacting the pull rope 11 to the moment of contacting the pull rope 11, so that the damage to the control assembly and the instant impact of the pull rope 11 caused by the instant contact is avoided.

In addition, in the moving process of the moving part 13, the moving part 13 is at any angle or any position and can be abutted against the pull rope 11, so that in the moving process of the moving part 13, the elastic part 12 can be continuously elongated, the size range of the elastic force provided by the elastic part 12 can be changed by increasing the moving part 13, and the maximum opening angle of the door body 300 controlled by the control assembly is increased.

In some embodiments, the moveable member 13 is a rotating member or a moving member.

The movable member 13 may be a rotating member, where the rotating member abuts against the pull cord 11, and through rotation of the rotating member between the first angle and the second angle, a contact angle between the rotating member and the pull cord 11 can be changed, so that the pull cord 11 is supported by the rotating member to have different lengths, and the pull cord 11 drives the elastic member 12 to change a pull force of the pull cord 11.

The movable member 13 may be a movable member, and the movable member moves between a first position and a second position, so that the supporting position of the movable member on the pull cord 11 is changed, and the pull cord 11 drives the elastic member 12 to change the length, thereby changing the pulling force of the pull cord 11.

In some embodiments, as shown in fig. 1 and 2, the movable member 13 is a cam, and the control assembly includes a first motor (not shown) coupled to the cam. Thus, the rotation of the cam is controlled by the first motor, so that the cam can be controlled to rotate, the cam can automatically rotate between the first angle and the second angle, and the door 300 can be automatically controlled to be opened and closed.

Meanwhile, the first motor can finely control the rotation angle of the cam, thereby improving the control accuracy of opening and closing the door 300.

In other embodiments, as shown in FIG. 5, the control assembly includes: the second motor 21 and the lead screw 22, lead screw 22 links to each other with second motor 21, and movable part 13 is the nut of cooperation on lead screw 22. At this time, the limiting nut can only move along the length direction of the screw rod 22, the screw rod 22 is driven to rotate by the second motor 21, and the nut moves synchronously with the screw rod 22 under the threaded fit, so that the nut can automatically move between the first position and the second position, and further the automatic control of opening and closing of the door body 300 is realized. Meanwhile, the second motor 21 can also finely control the rotation of the screw 22 to improve the control accuracy of opening and closing the door 300.

Specifically, as shown in fig. 5, a protrusion or a roller may be provided on the movable member 13, such as a cylinder is provided in fig. 5, and the protrusion or the roller is stopped against the pull cord 11, so that the assembly therebetween is easy, and the pull cord 11 has less friction when sliding on the protrusion or the roller.

In some embodiments, as shown in fig. 6, the control assembly includes: the third motor 23, the third motor 23 is a linear motor, and the movable member 13 is connected to the third motor 23. Thus, the linear movement of the movable member 13 is controlled by the linear motor, so that the movable member 13 can automatically move between the first position and the second position, and further, the door 300 can be automatically controlled to be opened and closed.

Further, as shown in fig. 5, the movable member 13 is a movable member, and the door opening device 100 further includes a sliding rail 24 that is matched with the movable member 13. Therefore, the moving track of the movable member 13 is limited by the sliding rail 24, so that the movable member 13 can move between the first position and the second position in a fixed track, thereby ensuring that the elastic force of the elastic member 12 is changed and fixed when the movable member 13 is positioned at any position between the first position and the second position, and improving the stability of controlling the opening or closing of the door body 300.

Alternatively, one or two of the slide rails 24 may be provided, as shown in fig. 5, with the two slide rails 24 being located on opposite sides of the moving member when two are provided.

In some embodiments, as shown in fig. 1 and 2, the door opening device 100 further includes two pinch rollers 14 contacting the pull cord 11, and the movable member 13 is disposed between the two pinch rollers 14 along the length of the pull cord 11. Therefore, the pull rope 11 can be abutted against the movable piece 13 between the two pressing wheels 14, and the contact stability of the movable piece 13 and the pull rope 11 is ensured. Meanwhile, when the length of the pull rope 11 between the two pressing wheels 14 is changed, the whole extending direction of the pull rope 11 is not changed, so that the stability of the whole angle of the pull rope 11 is maintained.

In some embodiments, as shown in fig. 1 and 2, the door opening device 100 further includes a steering wheel 15, where the steering wheel 15 is located between the movable member 13 and the rope two ends 112 in the length direction of the pull rope 11, and the steering wheel 15 is used to change the extending direction of the pull rope 11. Thus, the steering wheel 15 can provide support for the rope 11, and the angle of the rope both ends 112 can be adjusted by changing the extending direction of the rope 11, and the rope can be connected to the door 300.

As shown in fig. 1, a dishwasher 1000 according to an embodiment of the present utility model includes: the door opening device 100 is the door opening device 100 described in the above embodiment, and the body 200, the door 300, and the door opening device 100 are provided.

The machine body 200 is provided with a rotating shaft 210, the lower end of the door body 300 is connected to the rotating shaft 210, the door opening device 100 is the door opening device 100 in the above embodiment, the two rope ends 112 are connected to the door body 300, and the two rope ends 112 are spaced apart from the rotating shaft 210.

By providing the door opening device 100 of the above embodiment, the door opening device 100 can change the elastic force provided by the elastic member 12, thereby realizing automatic control of opening and closing the door 300.

In some embodiments, as shown in fig. 1, the door body 300 is provided with a door inner panel 310, and the door opening device 100 includes a clip 16 provided on the rope end 112, where the clip 16 is detachably connected to the door inner panel 310. Thus, the pull rope 11 is fixed on the door inner plate 310 through the clamping piece 16, and the pull rope 11 is convenient to mount and dismount at the rope two ends 112 and the door inner plate 310.

In some embodiments, as shown in FIG. 1, the dishwasher 1000 further comprises: the sensor 40, the sensor 40 is suitable for detecting the opening angle of the door 300 relative to the machine body 200, and the sensor 40 is electrically connected with the control assembly. Thus, the opening angle of the door 300 with respect to the machine body 200 is detected by the sensor 40, and the control assembly can receive the detection data of the sensor 40, so that the control assembly can control the door 300 according to the opening angle of the door 300.

For example, by setting a preset value of the opening angle of the door 300 in the control assembly, when the sensor 40 detects that the opening angle of the door 300 is smaller than the preset value, the control assembly can control the door 300 to be opened further; when the sensor 40 detects that the opening angle of the door 300 is greater than a preset value, the control assembly can control the door 300 to be closed so as to reduce the opening angle thereof. Thereby realizing automatic control of the opening of the door 300.

Alternatively, the type of the sensor 40 is not limited, and the sensor 40 may be a distance sensor, an angle sensor, or the like.

Other constructions and operations of the door opener 100 and the dishwasher 1000 according to the embodiment of the present utility model are known to those skilled in the art, and will not be described in detail herein.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A door opening device provided between a door body (300) and a body (200) of a home appliance, characterized in that the door opening device comprises:

the two ends of the pull rope (11) are respectively provided with one rope end (111) and two rope ends (112), one rope end (111) is used for being connected with the machine body (200), and the two rope ends (112) are used for being connected with the door body (300);

an elastic member (12), wherein the elastic member (12) is connected between one end (111) of the rope and the machine body (200), or the elastic member (12) is connected between the two ends (112) of the rope and the door body (300);

the control assembly is suitable for being arranged on the machine body (200), the control assembly comprises a movable piece (13), the movable piece (13) can be in contact with the pull rope (11), and the movable piece (13) is configured to adjust the pulling amplitude of the pull rope (11) in the activity so as to adjust the expansion and contraction amount of the elastic piece (12).

2. Door opening device according to claim 1, characterized in that the movable part (13) is in contact with the pull rope (11) throughout its movement.

3. Door opening device according to claim 1, characterized in that the movable part (13) is a rotating or moving part.

4. A door opening device according to claim 3, wherein the movable member (13) is a cam and the control assembly comprises a first motor connected to the cam.

5. A door opening device according to claim 3, wherein the control assembly comprises: the movable piece (13) is a nut matched on the screw rod (22).

6. A door opening device according to claim 3, wherein the control assembly comprises: and the third motor (23), the third motor (23) is a linear motor, and the movable piece (13) is connected to the third motor (23).

7. A door opening device according to claim 3, characterized in that the movable member (13) is a moving member, the door opening device further comprising a sliding rail (24) cooperating with the movable member (13).

8. The door opening device according to any one of claims 1-7, wherein the door opening device (100) further comprises:

two pinch rollers (14) in contact with the pull rope (11), wherein the movable piece (13) is distributed between the two pinch rollers (14) in the length direction of the pull rope (11);

and a steering wheel (15), wherein the steering wheel (15) is positioned between the movable piece (13) and the two ends (112) of the rope in the length direction of the pull rope (11), and the steering wheel (15) is used for changing the extending direction of the pull rope (11).

9. A dishwasher, comprising:

a machine body (200), wherein a rotating shaft (210) is arranged on the machine body (200);

the lower end of the door body (300) is connected to the rotating shaft (210);

door opening device (100), which is a door opening device (100) according to any one of claims 1-8, wherein the two ends (112) of the rope are connected to the door body (300), and the two ends (112) of the rope are spaced apart from the rotating shaft (210).

10. The dishwasher of claim 9, further comprising: -a sensor (40), said sensor (40) being adapted to detect the opening angle of said door body (300) with respect to said body (200), said sensor (40) being electrically connected to said control assembly.