CN209874814U - Household electrical appliance - Google Patents

Abstract

The utility model discloses a household appliance. The household appliance comprises a machine body, a movable part and a hinge assembly for connecting the machine body and the movable part, wherein the hinge assembly comprises a hinge body and a damping assembly, the hinge body and the movable part are fixedly connected, the damping assembly is connected with the machine body, the movable part is rotatably connected with the machine body through the hinge body, and the damping assembly is configured to provide resistance for the hinge body and the movable part so as to prevent the hinge body and the movable part from rotating relative to the machine body. Therefore, the damping component can provide resistance for a movable part (such as a door body) of the household appliance to prevent the door body from being automatically or mistakenly opened, and an additional door locking device is not needed, so that the cost is reduced. Meanwhile, the movable part (such as a door body) can be prevented from colliding with other parts (such as a shell) of the household appliance due to too high speed in the opening or closing process, and the user experience is improved.

Description

Household electrical appliance

Technical Field

The utility model relates to the technical field of household appliances, in particular to household appliance.

Background

At present, household appliances with door bodies are widely applied to the household life of people. Among them, in a household appliance employing a pull-down door type. In order to prevent the door from being opened automatically or being opened by mistake, in the prior art, a door lock device is generally provided on the household appliance to lock the door when the door is closed. Then, need extra setting up the lock like this, improved manufacturing cost and manufacturing cost, simultaneously, when opening or closing the door body, also probably because the dynamics of closing the door body is too big and lead to the door body velocity of movement too high and bump with other parts (for example the casing) of domestic appliance, reduced user experience.

SUMMERY OF THE UTILITY MODEL

The utility model provides a household appliance.

The utility model discloses a domestic appliance of embodiment includes organism, movable part and connection the organism with the hinge subassembly of movable part, the hinge subassembly includes hinge body and damping subassembly, the hinge body with movable part fixed connection, the movable part passes through the hinge body with the organism rotates to be connected, the damping subassembly with the organism is connected, the damping subassembly be configured to the hinge body with the movable part provides the resistance in order to hinder the hinge body with the movable part is relative to the organism rotates.

In the household appliance of the above embodiment, the damping assembly of the hinge assembly can provide resistance to the hinge body and the movable part to hinder the hinge body and the movable part from rotating relative to the machine body. Therefore, the damping component can provide resistance for a movable part (such as a door body) of the household appliance to prevent the door body from being automatically or mistakenly opened, and an additional door locking device is not needed, so that the cost is reduced. Meanwhile, the movable part (such as a door body) can be prevented from colliding with other parts (such as a shell) of the household appliance due to too high speed in the opening or closing process, and the user experience is improved.

In some embodiments, the damping component includes a first elastic member and a supporting component, the first elastic member is connected to the supporting component, the supporting component supports against the hinge body, and the first elastic member provides the resistance to the hinge body and the movable portion through the supporting component.

In some embodiments, the abutting assembly includes an abutting member and a contact member, the abutting member is formed with a mounting portion, the contact member is movably mounted on the mounting portion, and the contact member abuts against the hinge body.

In some embodiments, the hinge body is formed with a supporting portion, the supporting component supports at least one surface portion of the supporting portion, the surface portion includes a curved surface, and when the hinge body rotates relative to the damping component, the curved surface deforms the first elastic component through the supporting component to enable the first elastic component to provide the resistance.

In certain embodiments, the hinge assembly includes a base, and the damping assembly is mounted to the base.

In some embodiments, the hinge assembly includes a balancing assembly rotatably coupled to the hinge body, the balancing assembly being coupled to the body, the hinge body and the movable portion being capable of being positioned in and switching back and forth between a plurality of first positions of the body, the balancing assembly including a second elastic member, the balancing assembly being configured to provide a pulling force to the hinge body and the movable portion to maintain the first positions by compressing the second elastic member.

In some embodiments, the counterbalance assembly includes a coupling assembly that couples the second resilient member and the hinge body, the second resilient member providing the pulling force through the coupling assembly when the hinge body rotates.

In some embodiments, the connection assembly includes a first connection member, a second connection member and a connection portion, the connection portion is rotatably connected to the hinge body, the first connection member and the second connection member penetrate the connection portion at intervals, the second elastic member is abutted between the first connection member and the second connection member, and the hinge body is rotated to drive the connection portion to move so as to compress or release the second elastic member.

In some embodiments, the connecting portion includes a first portion and a second portion, the second portion rotatably connects the hinge body and the first portion, the first connecting member and the second connecting member penetrate through the first portion at intervals, and the second elastic member is sleeved on the first portion.

In some embodiments, the first portion has a sliding groove, the second connecting member penetrates through the sliding groove, and when the connecting portion moves, the first portion drives the first connecting member to move, and the second connecting member is stationary.

Additional aspects and advantages of the invention 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 invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a household appliance according to an embodiment of the present invention;

fig. 2 is another schematic structural diagram of the household appliance according to the embodiment of the present invention;

fig. 3 is a further schematic structural diagram of the household appliance according to the embodiment of the present invention;

fig. 4 is a perspective view of a hinge assembly of a home appliance according to an embodiment of the present invention;

fig. 5 is an exploded perspective view of a hinge assembly of a household appliance in accordance with an embodiment of the present invention;

fig. 6 is a schematic cross-sectional view of a hinge assembly of a household appliance according to an embodiment of the present invention;

fig. 7 is another schematic cross-sectional view of a hinge assembly of a household appliance in accordance with an embodiment of the present invention;

fig. 8 is a schematic view of a state in which a movable portion of a home appliance according to an embodiment of the present invention is in a first position;

fig. 9 is a schematic view of a state in which a movable portion of a home appliance according to an embodiment of the present invention is in another first position;

fig. 10 is a schematic view of a state in which a movable portion of a home appliance according to an embodiment of the present invention is in a second position;

fig. 11 is a schematic structural view of a damping assembly of a hinge assembly of a household appliance according to an embodiment of the present invention;

fig. 12 is a schematic structural view of a retainer of a hinge assembly of a home appliance according to an embodiment of the present invention.

Description of the main element symbols:

the hinge assembly comprises a household appliance 1000, a hinge assembly 100, a hinge body 10, a butting portion 101, a first inclined surface 11, a second inclined surface 12, a corner surface 13, a base 20, a second sliding groove 21, a fourth sliding groove 22, a limiting portion 23, a first sliding groove 24, a mounting hole 25, a balance assembly 30, a second elastic piece 31, a connecting assembly 32, a connecting portion 321, a first portion 3211, a third sliding groove 32111, a second portion 3212, an accommodating groove 32121, a first connecting piece 322, a second connecting piece 323, a shaft sleeve 324, a third connecting piece 325, a damping assembly 40, a butting assembly 41, a butting piece 411, a mounting portion 4111, a mounting groove 41111, a contact piece 412, a first elastic piece 42, a machine body 200 and a movable portion 300.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 to 7, a household appliance 1000 according to an embodiment of the present invention includes a hinge assembly 100, a body 200, and a movable portion 300, wherein the hinge assembly 100 connects the body 200 and the movable portion 300. The hinge assembly 100 includes a hinge body 10 and a damping assembly 40, the hinge body 10 is fixedly connected with the movable part 300, the damping assembly 40 is connected with the machine body 200, and the movable part 300 is rotatably connected with the machine body 200 through the hinge body 100. The damping assembly 40 is configured to provide resistance to the hinge body 10 and the movable part 300 to hinder the hinge body 10 and the movable part 300 from rotating relative to the machine body 200. In the illustrated embodiment, the movable portion 300 is a door. It is understood that in other embodiments, the movable portion 300 may also be a cover portion, or other component rotatably coupled to the body 200.

Specifically, referring to fig. 1 and 2, in the present embodiment, the main body 200 includes a cavity 201 and a base 202, the cavity 201 is disposed on the base 202, the hinge assembly 100 is mounted on a sidewall of the base 202, and the movable portion 300 can rotate relative to the main body 200 through the hinge body 10 to open or close an opening of the cavity 201. The cavity 201 may be used for placing articles, and the base 202 may be used for placing electrical components of the household appliance 1000. For example, for a washing appliance, the cavity 201 can be used for placing dishes to be washed, and the base 202 can be used for placing electric components such as a washing pump, a drainage pump, a heating system, and the like. In other embodiments, the hinge assembly 100 may also be mounted on a sidewall of the cavity 201. In addition, in some home appliances 1000, the base 202 may be omitted from the body 200, and the hinge assembly 100 may be mounted at a sidewall of the cavity 201. Of course, it should be noted that, in general, the main body 200 of the household appliance 1000 includes, in addition to the base 202 and the cavity 201, a housing (not shown) disposed on the cavity 201 and the base 202.

The damping assembly 40 of the hinge assembly 100 of the electric home appliance 1000 according to the embodiment of the present invention can provide resistance to the hinge body 10 and the movable portion 300 to prevent the hinge body 10 and the movable portion 300 from rotating with respect to the machine body 200. In this way, the damping assembly 40 can provide resistance to the movable part 300 (e.g., a door body) of the household appliance 1000 to prevent the movable part 300 from being automatically or erroneously opened, without providing an additional door lock device, thereby reducing the cost. Meanwhile, the movable part 300 (for example, a door body) can be prevented from colliding with other parts (for example, a housing) of the household appliance 1000 due to too high speed in the opening or closing process, and user experience is improved.

The utility model discloses embodiment's domestic appliance 1000 includes domestic appliance of drop-down gate-type, flip formula domestic appliance and the domestic appliance 1000 of different grade type such as domestic appliance when the side opens the door. Referring to fig. 1 and 2, in the pull-down type home appliance as an example, the hinge assembly 100 is located at a lower portion of the home appliance 1000 (see fig. 1 and 2), and the movable portion 300 can rotate by the hinge assembly 100 to open or close the opening of the cavity 201. In one example, the household appliance 1000 is a pull-down door type dishwasher, and the cavity 201 may be an inner container of the dishwasher. It is understood that in other examples, the household appliance 1000 may also be other household appliances 1000 such as an oven or a microwave oven.

In the present embodiment, the hinge body 10 and the movable portion 300 can be located at a plurality of first positions of the body 200 and can be switched back and forth between the plurality of first positions. Further, the hinge body 10 and the movable part 300 can also be located at the second position of the body 200 and can be switched back and forth between the second position and the first position. Referring to fig. 8 and 9, in the present embodiment, the first positions are positions at different angles when the movable portion 300 is in the open state, and fig. 8 and 9 are schematic views of states at two different first positions. Referring to fig. 10, the second position refers to a position of the movable portion 300 and the hinge body 10 relative to the machine body 200 when the movable portion 300 closes the opening of the cavity 201, and fig. 10 is a schematic view of a state when the movable portion 300 is at the second position. That is, when the hinge body 10 and the movable part 300 are in the second position, the movable part 300 closes the opening of the cavity 201. It is to be understood that in the following description of the embodiments, similar or identical descriptions may be found with reference to the figures.

In addition, the above-mentioned "preventing the hinge body 10 and the movable portion 300 from rotating with respect to the machine body 200" means preventing the hinge body 10 and the movable portion 300 from switching between a plurality of first positions or switching between the first position and the second position. It is to be understood that in the following description of the embodiments, similar or identical descriptions may be found with reference to the figures.

Further, in the above embodiment, the damping member 40 includes the abutting member 41 and the first elastic member 42, the first elastic member 42 is connected to the abutting member 41, the abutting member 41 abuts against the hinge body 10, and the first elastic member 42 provides resistance to the hinge body 10 and the movable portion 300 through the abutting member 41. Specifically, in the illustrated embodiment, the first elastic element 42 is sleeved on the abutting component 41.

In the present embodiment, since the damping member 40 can provide resistance to the hinge body 10 when the hinge body 10 is switched between the second position and the first position. Therefore, when the user needs to open the movable portion 300 (i.e., switch from the second position to the first position), a certain force needs to be applied to the movable portion 300 to open the movable portion 300, and when the user needs to close the movable portion 300 (i.e., switch from the first position to the second position), a certain force needs to be applied to the plurality of movable portions 300 to close the movable portion 300. This ensures that the movable portion 300 does not open automatically or open erroneously. At the same time, when the movable portion 300 is switched between the first positions, the first elastic element 42 is also deformed accordingly to generate a corresponding damping effect, so as to prevent the movable portion 300 from being too fast in the process of closing or opening the opening of the chamber 201.

Referring to fig. 11 and 12, in some embodiments, the abutting assembly 41 includes an abutting member 411 and a contact member 412, the abutting member 411 is formed with a mounting portion 4111, the contact member 412 is movably mounted on the mounting portion 4111, and the contact member 412 abuts against the hinge body 10.

Specifically, in the illustrated embodiment, the contact 412 is a roller that is rotatable relative to the mounting 4111. It is understood that in other embodiments, the contact 412 may be other elements that can slide relative to the mounting portion 4111.

Further, referring to fig. 6 and 7, in the present embodiment, the hinge assembly 100 includes a base 20, and the damping assembly 40 is mounted on the base 20. The base 20 is formed with a limiting portion 23, the damping component 40 is arranged on the base 20, the abutting member 411 is inserted on the limiting portion 23, and the first elastic member 42 is sleeved on the abutting member 411 and is located between the limiting portion 23 and the mounting portion 4111.

The base 20 further has a first sliding groove 24 formed thereon, and the contact member 412 is mounted on the mounting portion 4111 via a fourth link member 43, wherein the fourth link member 43 can slide in the first sliding groove 24 to compress or release the first elastic member 42.

Referring to fig. 5-7, in some embodiments, the hinge body 10 is formed with a supporting portion 101 cooperating with the supporting component 41, at least one surface portion of the supporting component 41 supporting the supporting portion 101 includes a curved surface 13, and when the hinge body 10 is switched between the first position and the second position, the curved surface 13 deforms the first elastic component 42 through the supporting component 41 so that the first elastic component 42 provides resistance to the hinge body 10 and the movable portion 300.

Specifically, the surface portion further includes a first inclined surface 11 and a second inclined surface 12 (see fig. 5 and 6), the first inclined surface 11 is connected to the second inclined surface 12 through a crank surface 13 (see fig. 5), and the second elastic member 20 is configured to generate an elastic force acting on the abutting assembly 41 so that the abutting assembly 41 abuts against the first inclined surface 11 or the second inclined surface 12, thereby providing resistance to the hinge body 10. In the present embodiment, the angle between the first inclined surface 11 and the second inclined surface 12 is an acute angle.

It can be understood that the specific magnitude of the elastic resistance of the first elastic member 42 to the hinge body 10 and the movable portion 300 can be calibrated through verification, for example, the optimal door opening and closing force of the household appliance 1000 can be verified through experiments to prevent the door body from opening automatically or opening by mistake. The second elastic element 31 should be chosen such that the requirements for elastic resistance are met.

The first elastic member 42 may be an elastic member such as a spring. In the present embodiment, the first inclined surface and the contact member 412 (roller) are in an interference fit, and a certain force is required to bypass the roller when the hinge body 10 rotates. It will be appreciated that in this embodiment, the door opening and closing force may be adjusted to meet different user requirements by adjusting the angle of the first ramp.

Referring further to fig. 11 and 12, in the above embodiment, the mounting portion 4111 is formed with a mounting groove 41111, and the contact 412 is partially disposed in the mounting groove 41111.

In the present embodiment, when the hinge body 10 is in the second position (i.e. the movable portion 300 is in the closed state), the first elastic element 42 is in the compressed state, and the acting force generated by the first elastic element makes the contact element 412 abut against the first inclined surface 11, so as to apply an acting force to the hinge body 10 and the movable portion 300, so that a user needs to apply a certain acting force to the door body to open the movable portion 300, which can ensure that the movable portion 300 cannot be automatically opened or erroneously opened. In addition, in the present embodiment, locking of the movable part 300 can be achieved directly by means of the hinge assembly 100 without providing an additional door lock device.

Specifically, when the movable portion 300 needs to be opened (i.e., switched from the second position to the first position), the abutting portion 101 rotates following the hinge body 10. When the contact part 101 rotates, the contact part 412 is gradually pressed by the inflection surface 13, so that the first elastic element 42 is compressed, and the reaction force generated by the first elastic element 42 acts on the contact part 101. Therefore, the user needs to apply a certain force to the movable portion 300 to open the movable portion 300 at a certain angle for taking and placing the article. This can further ensure that the movable portion 300 does not open automatically or open erroneously.

When the movable portion 300 is in the open state and is opened at a certain angle (i.e. the inflection surface 13 of the hinge body 10 needs to go around the abutting contact 412), the first elastic element 42 is also in the compressed state. At this time, the elastic force of the first elastic member 42 acts on the contact 412 to make the contact 412 abut against the second inclined surface 12 of the hinge body 10. As described above, even when the user needs to apply a certain force to the movable portion 300 to close the movable portion 300 by moving the contact 412 around the inflection surface 13, the compression amount of the first elastic member 42 increases and the elastic resistance of the first elastic member 42 gradually increases during the door closing process, so that the movable portion 300 can be prevented from being closed at a high speed and colliding with the body 200.

The hinge assembly 100 of the embodiment of the present invention further includes a balance assembly 30, the balance assembly 30 is rotatably connected to the hinge body 10, the hinge body 10 can be located at a plurality of first positions of the balance assembly 30 and can be switched back and forth between the plurality of first positions, the balance assembly 30 includes a second elastic member 31, and the balance assembly 30 is used for providing the pulling force kept at the first position to the hinge body 10 by compressing the second elastic member 31.

So, provide the pulling force that keeps at the first position for hinge body 10 through balanced subassembly 30 to can hover at the angle of difference when making the movable portion 300 (like the door body) that is connected with hinge body 10 open, above-mentioned hinge subassembly 100 simple structure is reasonable moreover, and the dismouting is swift, has promoted the assembly efficiency of complete machine, has reduced manufacturing cost.

In the present embodiment, when the hinge body 10 is at any one of the plurality of first positions, the second elastic member 31 is in a compressed state to maintain the tensile force on the hinge body 10. The specific magnitude of the pulling force can be calibrated through verification, and the second elastic element 31 should be selected to satisfy the requirement of the pulling force, depending on the weight of the movable portion 300, the opening angle of the movable portion 300, and other factors. The second elastic member 31 may be an elastic member such as a spring.

Referring to fig. 4 and 5, in the present embodiment, the balance assembly 30 is disposed on the base 20, and the hinge body 10 is rotatably connected to the base 20.

Therefore, the balance assembly 30 can be arranged on the base 20, and only the base 20 needs to be arranged on the machine body 200 and the hinge body 10 needs to be fixedly connected with the movable part 300 in the whole assembling process of the household appliance 1000.

Specifically, in the prior art, a spring, a pull rope or a friction belt, and a corresponding fixed structure are generally adopted to realize the arbitrary-angle hovering of the movable portion 300. However, in the above-described method, when the entire machine is assembled, a plurality of parts need to be mounted on the machine body 200 or the movable portion 300, respectively, and the assembling method is complicated, and the assembling process is performed in many steps, which results in low assembling efficiency and high production cost. However, in the present embodiment, the balance assembly 30 may be mounted on the base 20 and the hinge body 10 may be connected to the balance assembly 30 before the complete machine is assembled, so that it is relatively simple to fixedly mount the base 20 on the machine body 200 and fixedly connect the hinge body 10 and the movable portion 300 during the complete machine assembly, and it is not necessary to mount a plurality of components, and many assembling processes are not required, thereby improving the assembling efficiency.

It should be noted that, in some embodiments, the hinge assembly 100 may not be provided with the base 20, but the balancing assembly 30 may be directly provided on the body 200.

Referring to fig. 5 to 7, in the present embodiment, the balance assembly 30 further includes a connection assembly 32, the connection assembly 32 connects the second elastic member 31 and the hinge body 10, and the second elastic member 31 provides a pulling force to the hinge body 10 when the hinge body 10 rotates through the connection assembly 32.

Further, the connection assembly 32 includes a connection portion 321, a first connection member 322, and a second connection member 323. The first connecting member 322 and the second connecting member 323 penetrate through the connecting portion 321 at intervals, the connecting portion 321 is rotatably connected to the hinge body 10, the second elastic member 31 is supported between the first connecting member 322 and the second connecting member 323, and the hinge body 10 can drive the connecting portion 321 to move to compress or release the second elastic member 31 when rotating.

Specifically, the base 20 is formed with a second sliding chute 21 and a mounting hole 25, the first connecting member 322 is disposed on the second sliding chute 21 and can slide in the second sliding chute 21, and the second connecting member 323 penetrates through the mounting hole 25 on the base 20. Thus, the first and second connectors 322 and 323 can mount the connection part 321 of the connection assembly 32 on the base 20.

In addition, the connecting portion 321 includes a first portion 3211 and a second portion 3212, the second portion 3212 rotatably connects the hinge body 10 and the first portion 3211, the first connecting member 322 and the second connecting member 323 penetrate the first portion 3211 at intervals, and the second elastic member 31 is sleeved on the first portion 3211. The first portion 3211 is provided with a third sliding slot 32111 (corresponding to a sliding slot in the claims), the second connecting member 323 penetrates the third sliding slot 32111, and when the connecting portion 321 moves, the first portion 3211 drives the first connecting member 322 to move, and the second connecting member 323 does not move.

In the present embodiment, when the hinge body 10 is switched between the plurality of first positions, the first link 322 slides in the second sliding groove 21, the second link 323 is fixed to the base 20, and the first portion 3211 slides with respect to the second link 323. The first connecting member 322 changes the compression amount of the second elastic member 31 when sliding in the second sliding slot 21 to change the pulling force provided by the second elastic member 31 to the hinge body 10, so that the movable portion 300 can be balanced in any first position.

In the illustrated embodiment, the first portion 3211 is a straight strip, and the second elastic member 31 is fitted over the first portion 3211. It is understood that in other embodiments, the second elastic element 31 may not be sleeved on the first portion 3211 but sleeved on another straight rod connected to the first portion 3211, and the straight rod is disposed parallel to the first portion 3211.

In the present embodiment, the connection portion 321 is movable forward relative to the base 20 and the machine body 200 by the movable portion 300 and the hinge body 10 in a process in which the movable portion 300 rotates relative to the machine body 200 to open the opening of the cavity 201. When the connecting portion 321 moves, the first portion 3211 can drive the first connecting element 322 to move in the second sliding slot 21, the second connecting element 323 is fixed relative to the base 20, and two ends of the second elastic element 31 respectively abut against the first connecting element 322 and the second connecting element 323. Therefore, as the opening angle of the movable part 300 increases, when the connecting assembly 32 moves forward relative to the base 20, the first connecting member 322 moves forward in the second sliding slot 21, the distance between the first connecting member 322 and the second connecting member 323 decreases, thereby compressing the second elastic member 31, the compression amount of the second elastic member 31 increases, the elastic resistance generated by the second elastic member 31 reacts to the connecting assembly 32, thereby providing a pulling force to the hinge body 10 and the movable part 300, and the moment generated by the pulling force provided by the second elastic member 31 on the hinge assembly 100 and the movable part 300 is equal to the moment generated by the self weight and the friction force of the hinge assembly 100 and the movable part 300, thereby maintaining the balance of the hinge body 10 and the movable part 300 so that the hinge body 10 and the movable part 300 can hover at any position where the movable part 300 opens the cavity 201.

During the process that the movable part 300 rotates relative to the machine body 200 to close the opening of the cavity 201, the opening angle of the movable part 300 gradually decreases, the connecting assembly 32 moves backward relative to the base 20 and the machine body 200 under the action of the movable part 300 and the hinge body 10, the first connecting piece 322 slides backward in the second sliding slot 21, the distance between the first connecting piece 322 and the second connecting piece 323 increases, so as to release the second elastic piece 31, the compression amount of the second elastic piece 31 decreases, but still in a compressed state, the elastic resistance generated by the second elastic piece 31 acts against the connecting assembly 32 to keep the hinge body 10 and the movable part 300 balanced, so that the hinge body 10 and the movable part 300 can hover at any position during the process that the movable part 300 closes the opening of the cavity 201.

The first and second connectors 322 and 323 may be pins or pins in this embodiment.

Furthermore, it is understood that in some embodiments, the second sliding slot 21 can also serve as a limiting function, that is, when the movable portion 300 is fully opened, the first connecting element 322 moves to the rightmost end to prevent the movable portion 300 from further rotating, and when the movable portion 300 is closed, the first connecting element 322 is located at the leftmost end to prevent the movable portion 300 from further rotating. The third slide groove 32111 formed in the first portion 3211 may also serve as a stopper, and its principle is the same as that of the second slide groove 21.

In the example shown in fig. 5, the second slide groove 21 includes two first sub-slide grooves 211 located on opposite sides of the connecting assembly 32. The first connecting member 322 passes through one of the two first sub-sliding grooves 211 and further passes through the connecting assembly 32 and passes through the other one of the two first sub-sliding grooves 211 to be slidably connected with the base 20 and fixedly connected with the connecting assembly 32. Thus, the stability of the sliding of the first connecting member 322 is better under the guidance of the two first sub-sliding grooves 211.

In the present embodiment, the second elastic member 31 is in a compressed state as long as the movable portion 300 is in the open state. As the opening angle of the movable portion 300 gradually increases, the compression amount of the second elastic member 31 gradually increases. Further, the above-described release of the second elastic member 31 means that the second elastic member 31 is gradually released to reduce the amount of compression thereof during the closing of the movable portion 300, but the second elastic member 31 is still in a compressed state during this process. It is to be understood that in the following description of the embodiments, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration, various embodiments of the invention may be practiced.

Referring to fig. 5 to 7, in the above embodiment, the connection assembly 32 further includes a shaft sleeve 324 disposed on the first portion 3211 and a third connection member 325 passing through the second portion 3212 and the shaft sleeve 324, and the shaft sleeve 324 and the third connection member 325 are used for connecting the first portion 3211 and the second portion 3212.

Further, the base 20 is formed with a fourth slide groove 22 slidably engaged with the third link 325.

In this way, the third connecting member 325 can stably slide in the fourth sliding groove 22 to ensure that the second portion 3212 can stably move relative to the base 20.

It is understood that the first portion 3211 and the second portion 3212 are both pull rods, that is, in the present embodiment, the connecting assembly 32 is a pull rod assembly. In this embodiment, the two rotationally connected pull rods can make the pull rod more stable when moving forward, and can prevent the working reliability of the balance assembly 30 from being affected by the overlong length when only one pull rod is adopted. Meanwhile, when the hinge body 10 rotates, the second portion 3212 tends to rotate downward, so that the first portion 3211 and the second portion 3212 are rotatably connected to prevent the second portion 3212 from exerting a downward force on the first portion 3211 when moving downward, so that the first connecting member 322 is locked in the second sliding groove 211, and the first connecting member 322 is difficult to move.

In the present embodiment, the length of the second chute 3211 may be set as appropriate. In the present embodiment, the hinge body 10 is hinged to the second portion 3212 by a hinge shaft.

With continued reference to fig. 5 and 6, in some embodiments, in order to save the installation space of the hinge body 10 in the balance assembly 30, a receiving groove 32121 is formed on the second portion 3212, and the hinge body 10 is at least partially disposed in the receiving groove 32121.

In addition, in the present embodiment, when the hinge body 10 and the movable portion 300 are in the second position, the first elastic element 42 is in a compressed state, and the second elastic element 31 is also in a compressed state, so that the second elastic element 31 can apply a pulling force to the movable portion 300, and thus the stability of the closed state of the movable portion 300 can be maintained. It is understood that in other embodiments, when the hinge body 10 and the movable portion 300 are in the second position, the first elastic member 42 is in a compressed state, and the second elastic member 31 may be in a normal state, which is not limited in particular. The above-mentioned normal state is a state in which the second elastic member 31 is not compressed and stretched.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The disclosure herein provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of the specific examples are described herein. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

In the description of the present specification, reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" or the like 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 present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. 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 invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A household appliance comprising a body, a movable portion and a hinge assembly connecting the body and the movable portion, the hinge assembly comprising a hinge body connecting the movable portion and a damping assembly connected to the body, the movable portion being rotatably connected to the body by the hinge body, the damping assembly being configured to provide a resistance to the hinge body and the movable portion to resist rotation of the hinge body and the movable portion relative to the body.

2. The household appliance according to claim 1, wherein the damping member comprises a first elastic member and a supporting member, the first elastic member is connected to the supporting member, the supporting member supports against the hinge body, and the first elastic member provides the resistance to the hinge body and the movable portion through the supporting member.

3. The household appliance according to claim 2, wherein the abutting assembly comprises an abutting member and a contact member, the abutting member is formed with a mounting portion, the contact member is movably mounted to the mounting portion, and the contact member abuts against the hinge body.

4. The household appliance according to claim 2, wherein the hinge body is formed with a holding portion, the holding component holds at least one surface portion of the holding portion, the surface portion includes a curved surface, and when the hinge body rotates relative to the damping component, the curved surface deforms the first elastic component through the holding component to enable the first elastic component to provide the resistance.

5. The household appliance of claim 1, wherein the hinge assembly comprises a base, the damping assembly being mounted to the base.

6. The household appliance according to claim 1, wherein the hinge assembly comprises a balance assembly rotatably connected with the hinge body, the balance assembly is connected with the machine body, the hinge body and the movable part can be located at a plurality of first positions of the machine body and can be switched back and forth between the plurality of first positions, the balance assembly comprises a second elastic piece, and the balance assembly is used for providing a pulling force for keeping the hinge body and the movable part at the first positions by compressing the second elastic piece.

7. The household appliance of claim 6, wherein the counterbalance assembly includes a connection assembly connecting the second resilient member and the hinge body, the second resilient member providing the pulling force upon rotation of the hinge body through the connection assembly.

8. The household appliance according to claim 7, wherein the connecting assembly comprises a first connecting member, a second connecting member and a connecting portion, the connecting portion is rotatably connected with the hinge body, the first connecting member and the second connecting member are arranged through the connecting portion at intervals, the second elastic member is abutted between the first connecting member and the second connecting member, and the hinge body is rotated to drive the connecting portion to move so as to compress or release the second elastic member.

9. The household appliance according to claim 8, wherein the connecting portion comprises a first portion and a second portion, the second portion rotatably connects the hinge body and the first portion, the first connecting member and the second connecting member are arranged through the first portion at intervals, and the second elastic member is sleeved on the first portion.

10. The household appliance according to claim 9, wherein the first portion has a sliding slot, the second connecting member passes through the sliding slot, and when the connecting portion moves, the first portion drives the first connecting member to move, and the second connecting member is stationary.