Door hinge assembly and kitchen appliance

Abstract

This application discloses a door hinge assembly including a locking member, a telescopic member, a support member, and a connecting member for connecting to the door body. The locking member has a first stop portion and is rotatably connected to the connecting member. One end of the telescopic member is connected to the locking member, and the other end is used to connect to the main body of the appliance. The support member has a second stop portion, and the first and second stop portions cooperate to restrict the door body from rotating when the telescopic member breaks. A kitchen appliance using this door hinge assembly is also disclosed. The technical solution of this application can promptly prevent the door body from continuing to fall after the pull cord breaks, ensuring user safety during use.

Description

Technical Field

[0001] This application relates to the field of door hinge technology, and in particular to a door hinge assembly and a kitchen appliance. Background Technology

[0002] Kitchen appliances such as dishwashers and ovens. Existing kitchen appliances include a door body and an outer unit base. The bottom end of the door body is rotatably connected to the outer unit base via a rotating hinge. Specifically, one end of the rotating hinge is fixed to the door body, while the other end is movably mounted in the outer unit base. Thus, during the opening of the door body, the door body will rotate up and down around its bottom end as the rotation center.

[0003] In related technologies, a traction rope is installed at the end of the hinge furthest from the door body to ensure its stability during vertical rotation. However, under prolonged use, the traction rope is prone to breakage due to repeated pulling. If the rope breaks, the door may suddenly drop if the door opens automatically or is opened and released by the user. This poses a risk of injuring the user, especially in cases with scrapers or heavy doors, directly impacting user safety. Summary of the Invention

[0004] This application provides a door hinge assembly and a kitchen appliance that can promptly prevent the door from continuing to fall after the pull cord breaks, ensuring the safety of the user during use.

[0005] In a first aspect, embodiments of this application provide a door hinge assembly for use in a household appliance, the household appliance including an appliance body and a door body, the door hinge assembly comprising:

[0006] Connector, used to connect the door body;

[0007] A locking member having a first stop portion and being rotatably connected to the connecting member;

[0008] The telescopic component has one end connected to the locking component and the other end used to connect to the electrical appliance body; and,

[0009] The support member has a second stop portion, and the first stop portion cooperates with the second stop portion to restrict the door body from rotating when the telescopic member breaks.

[0010] In one embodiment, both the connector and the locking member are movably disposed on the same side of the support member; and,

[0011] When the telescopic member is in normal use, the first stop and the second stop do not interfere with each other; when the telescopic member breaks, the first stop can move toward the second stop and lock with the second stop.

[0012] In one embodiment, the door hinge assembly further includes:

[0013] An elastic element, one end of which is connected to the connecting element and the other end of which is connected to the locking element, is used to drive the first stop portion to move toward the second stop portion when the telescopic element breaks.

[0014] In one embodiment, the first stop is a snap-fit ​​structure that protrudes from the locking member toward the second stop, and the second stop is a slot structure or a protrusion structure provided on the support member, wherein the first stop and the second stop engage with each other.

[0015] In one embodiment, the door hinge assembly includes a drive hinge member, and the support member is provided with a hinge fulcrum portion. The end of the drive hinge member near the door body is rotatably connected to the hinge fulcrum portion, and the end of the drive hinge member away from the door body is hinged to the connecting member.

[0016] In one embodiment, the telescopic member includes:

[0017] A pull rope, one end of which is connected to the locking element; and

[0018] A tension spring is connected to the other end of the pull rope, and the tension spring can produce elastic deformation during the rotation of the door.

[0019] In one embodiment, the telescopic member further includes:

[0020] A drive wheel is disposed between the tension spring and the locking member, and the tension spring is wound around the drive wheel.

[0021] In one embodiment, the transmission wheel includes a first rotating wheel and a second rotating wheel. The first rotating wheel is disposed on the side close to the locking member, and the second rotating wheel is disposed on the side away from the locking member. The pull rope is wound around the second rotating wheel and the first rotating wheel in sequence from the tension spring and connected to the locking member.

[0022] Secondly, embodiments of this application provide a kitchen appliance, including:

[0023] The aforementioned door hinge assembly;

[0024] The door body is connected to the connecting member via a transmission mechanism, and the door body is hinged to the supporting member;

[0025] The electrical appliance body is equipped with the telescopic component, the support component is fixedly connected to the electrical appliance body, and the door is connected to the electrical appliance body through the door hinge assembly.

[0026] In one embodiment, there are two door hinge assemblies, which are respectively disposed on the left and right sides of the electrical appliance body.

[0027] Based on the above embodiments, the door hinge assembly proposed in this application includes a locking member, a telescopic member, a support member, and a connector for connecting the door body. The locking member has a first stop portion and is rotatably connected to the connector. One end of the telescopic member is connected to the locking member, and the other end is used to connect to the electrical body. The support member has a second stop portion. The first stop portion and the second stop portion cooperate to restrict the door body from rotating when the telescopic member breaks.

[0028] Compared to related technologies, the technical solution of this application, through the cooperation of the locking part of the rotating connecting member, the first stop part provided on the locking part, and the second stop part provided on the support member, can restrict the rotation of the door when the telescopic member breaks. In other words, after the pull rope breaks, the door is promptly stopped from falling, ensuring the safety of the user during use. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0030] Figure 1 This is a partial assembly diagram of a kitchen appliance according to an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the overall structure of a kitchen appliance according to an embodiment of the present invention;

[0032] Figure 3 for Figure 2 A magnified view of point A in the diagram;

[0033] Figure 4 This is a schematic diagram of the support structure in this invention;

[0034] Figure 5 This is a first partial assembly drawing of a kitchen appliance according to an embodiment of the present invention;

[0035] Figure 6 This is a second partial assembly diagram of a kitchen appliance according to an embodiment of the present invention;

[0036] Figure 7 This is a structural diagram of the transmission hinge component in this invention;

[0037] Figure 8This is a schematic diagram of a door hinge assembly in a first state according to an embodiment of the present invention;

[0038] Figure 9 This is a schematic diagram of a door hinge assembly in a second state according to an embodiment of the present invention;

[0039] Figure 10 This is a schematic diagram of a door hinge assembly in a third state according to an embodiment of the present invention;

[0040] Figure 11 This is a schematic diagram of a kitchen appliance in a closed state according to an embodiment of the present invention;

[0041] Figure 12 This is a schematic diagram of a kitchen appliance in the open state according to an embodiment of the present invention.

[0042] Explanation of icon numbers:

[0043] 1-Door hinge assembly, 11-Connector, 111-Second rotating end, 112-First connecting end, 12-Locking member, 121-First stop, 122-First transition end, 13-Support member, 131-Second stop, 132-Hinge fulcrum, 1321-Hinge shaft, 1322-Hinge hole, 133-Main support member, 134-Support extension, 135-Support connection, 136-Closed limiting part, 137-Support extension, 138 - Second mounting hole, 14- Elastic element, 15- Transmission hinge, 151- Second connecting end, 16- Hinge socket, 17- Anti-detachment protrusion, 18- Frame limiting part, 2- Door body, 21- Door main body, 3- Telescopic element, 31- Pull rope, 32- Tension spring, 33- Transmission wheel, 331- First rotating wheel, 332- Second rotating wheel, 4- Electrical main body, 41- Main body base, 42- Main body top cover, 43- Main body side wall, 44- Bearing side wall, 45- First mounting hole.

[0044] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0045] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0046] Where the following description relates to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0047] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0049] Kitchen appliances are household appliances used for cooking, food processing, cleaning, and storage in the kitchen, such as ovens, air fryers, dishwashers, and glass washers. With technological advancements, kitchen appliances are constantly being improved and iterated upon, becoming more intelligent and functional to meet the growing needs of users.

[0050] Please refer to the specific details. Figure 1 and Figure 2 As shown, this application proposes a kitchen appliance, including a door 2 and an appliance body 4. The appliance body 4 has a main base 41, a main top cover 42 opposite to the main base 41, and a main side wall 43 disposed around the main base 41. The main base 41 and the main top cover 42 are both fixedly connected to the main side wall 43. This fixed connection can be a bolt connection, a snap-fit ​​connection, a welding connection, or any combination of two or three of the above connection methods to ensure the overall structural strength and sealing performance of the appliance body 4. The main base 41, the main top cover 42, and the main side wall 43 form an inner cavity for food processing or tableware cleaning and an opening communicating with the inner cavity. The door 2 is disposed on the side of the appliance body 4 near the opening, and when the door 2 is closed to the opening, the inner cavity becomes a relatively sealed space.

[0051] Furthermore, please refer to the specific details. Figure 1 , Figure 2 and Figure 3As shown, the direction from the main body base 41 towards the main body top cover 42 is defined as the height direction H of the electrical body 4. A base-bearing sidewall 44 is protruding from the main body base 41 in the height direction H. Preferably, two base-bearing sidewalls 44 are configured, and the two sidewalls 44 are located on opposite sides of the cavity opening. For example... Figure 4 As shown, the kitchen appliance also includes a door hinge assembly 1. The door hinge assembly 1 is used in household appliances. Preferably, there are two door hinge assemblies 1. Each door hinge assembly 1 is respectively set with each load-bearing side wall 44. When the door hinge assembly 1 is assembled, the two door hinge assemblies 1 are respectively set on the left and right sides of the appliance body 4. The door body 2 is connected to the corresponding load-bearing side wall 44 through the door hinge assembly 1. This achieves the purpose of mounting the door body 2 on the main body base 41 of the appliance body 4 through the door hinge assembly 1. Each load-bearing side wall 44 can bear the weight of the door body 2, thereby ensuring the force balance and stability of the door body 2 during the opening and closing process.

[0052] In this embodiment, please refer to the details. Figure 2 , Figure 3 and Figure 4 As shown, the door hinge assembly 1 includes a support member 13, which comprises a main support member 133, a support extension 134, and a support connecting member 135. The support extension 134 protrudes from one end of the support connecting member 135 along the height direction H of the electrical body 4, and the main support member 133 protrudes from the other end of the support connecting member 135 along a first direction opposite to the height direction H of the electrical body 4. Preferably, the main support member 133, the support extension 134, and the support connecting member 135 are integrally formed to ensure that the support member 13 has good overall performance, especially structural strength.

[0053] Furthermore, please refer to the specific details. Figure 3 and Figure 4As shown, each load-bearing sidewall 44 is provided with an installation socket. The main support 133 is at least partially inserted into the installation socket. The shape and size of the installation socket are adapted to the shape and size of the main support 133. Then, the side of the main support 133 abuts against the inner sidewall corresponding to the installation socket, so that the main support 133 can be stably inserted into the installation socket. Of course, in order to prevent the main support 133 of the support member 13 from falling out of the installation socket, at least one first mounting hole 45 is provided on the load-bearing sidewall 44, and at least one second mounting hole 138 is provided on the main support 133. At least one fastener (such as a bolt, nut, etc.) can pass through the first mounting hole 45 and the second mounting hole 138 to strengthen the connection between the support member 13 and the load-bearing sidewall 44. For example, both the first mounting hole 45 and the second mounting hole 138 are through holes, through which bolts pass and are connected to nuts. Alternatively, the first mounting hole 45 is a through hole, and the second mounting hole 138 is a threaded hole, through which bolts pass and are threaded to the second mounting hole 138. In this way, the support member 13 will be securely fixed to the main body base 41 of the electrical body 4, and the assembly will be more convenient and efficient.

[0054] In addition, please refer to the specific details. Figure 5 , Figure 6 and Figure 7 As shown, the support member 13 also has a hinge fulcrum portion 132, which is preferably disposed on the support connection portion 135 of the support member 13. The door hinge assembly 1 also includes a transmission hinge member 15, the end of which is fixedly connected to the door body 2. The fixed connection can be a bolt connection, a snap-fit ​​connection, a welded connection, or a combination of any two or three of the above connection methods. The end of the transmission hinge member 15 near the door body 2 is rotatably connected to the hinge fulcrum portion 132. The end of the transmission hinge member 15 near the door body 2 does not include the end of the transmission hinge member 15, that is, the end of the transmission hinge member 15 near the door body 2 does not coincide with the end of the transmission hinge member 15.

[0055] For example, please refer to the following: Figure 4 , Figure 5 and Figure 6 As shown, the hinge fulcrum 132 can be a hinge shaft 1321, and the support connection portion 135 is provided with a hinge hole 1322 for inserting the hinge shaft 1321. Alternatively, the hinge fulcrum 132 can also be a protruding structure protruding from the support connection portion 135. In this way, the end of the transmission hinge member 15 near the door body 2 can deflect around the hinge fulcrum 132, so the door body 2 is hinged to the support member 13 and can deflect around the hinge fulcrum 132, thereby realizing the purpose of the door body 2 flipping and opening and closing with the main body base 41 as the rotation center.

[0056] As a preferred embodiment, please refer to the following for details. Figure 7 As shown, the transmission hinge 15 is provided with a hinge socket 16. The opening of the hinge socket 16 is preferably oriented downwards. The hinge fulcrum 132 is inserted into the hinge socket 16. Furthermore, the inner diameter of the hinge socket 16 is adapted to the outer diameter of the hinge fulcrum 132. Under the gravity of the door body 2, the inner side of the hinge socket 16 abuts against the peripheral side of the hinge fulcrum 132 to form a surface contact, thereby increasing the contact area between the hinge socket 16 and the hinge fulcrum 132 and ensuring the stability and smoothness of the door body 2 during the flipping process.

[0057] To avoid the risk of the hinge fulcrum 132 easily detaching from the hinge socket 16, please refer to the following for details. Figure 5 , Figure 6 and Figure 7 As shown, a deformable anti-detachment protrusion 17 is formed on the inner wall of the hinge socket 16. The end of the anti-detachment protrusion 17 away from the opening of the hinge socket 16 extends obliquely towards the middle of the hinge socket 16. With this configuration, as the hinge fulcrum 132 is inserted into the hinge socket 16 from the opening side, the anti-detachment protrusion 17 will gradually undergo elastic deformation, reducing the resistance during assembly. When the hinge fulcrum 132 is embedded in the hinge socket 16, the end of the anti-detachment protrusion 17 away from the opening of the hinge socket 16 abuts against the hinge fulcrum 132, making it difficult for the hinge fulcrum 132 to detach from the hinge socket 16. It also ensures that the hinge fulcrum 132 remains in contact with and adheres to the inner wall of the hinge socket 16 as it rotates around its own central axis inside the hinge socket 16.

[0058] It should be noted that the door body 2 includes a door body 21 and a door lock. The door body 21 is a conventional technology well known to those skilled in the art, and no significant improvements have been made to the door body 21 in this application. Therefore, the structure and materials of the door body 21 will be described in detail. The door lock is preferably a magnetic lock, which is located on the side of the door body 21 near the top cover 42 of the main body, or on the side of the door body 21 near the side wall 43 of the main body.

[0059] It should also be noted that, for details, please refer to [the relevant documentation / reference]. Figure 5 and Figure 6 As shown, the transmission hinge 15 has a frame limiting part 18, and the support 13 also has a closing limiting part 136. The closing limiting part 136 extends along the second direction G, which is perpendicular to the large surface of the support extension part 134. The frame limiting part 18 abuts against the closing limiting part 136. At this time, the door 2 will close to the cavity opening, making the inner cavity of the appliance body 4 a relatively sealed space. This is beneficial for the kitchen appliance to automatically close the door 2 in place or for the user to easily close the door 2 in place.

[0060] The invention addresses the risk of collapse in kitchen appliances where the door body (2) is pulled up and down using a traction rope, which poses a risk if the rope breaks. The inventor also discloses a preferred method, which can be found in conjunction with [the relevant documentation / reference]. Figure 5 and Figure 6 As shown, the door hinge assembly 1 also includes a locking member 12, a telescopic member 3, and a connecting member 11 for connecting the door body 2. The locking member 12 has a first stop portion 121, and the support member 13 also has a second stop portion 131. The locking member 12 is rotatably connected to the connecting member 11. Specifically, as shown... Figure 8 , Figure 9 and Figure 10 As shown, the locking member 12 has a first transition end 122 at one end for rotatably connecting to the connecting member 11, and the connecting member 11 has a second rotating end 111 at one end for rotatably connecting to the locking member 12. The second rotating end 111 is configured as a rotating shaft, and the first transition end 122 is configured as a hook structure for fastening and engaging the rotating shaft, thereby achieving the purpose of rotatably connecting the locking member 12 to the connecting member 11. Of course, the first transition end 122 is configured as a rotating shaft, and the second rotating end 111 is configured as a hook structure for fastening and engaging the rotating shaft.

[0061] Understandable, such as Figure 7 As shown, the connector 11 also has a first connecting end 112 opposite to the second rotating end 111, and the transmission hinge 15 also has a second connecting end 151 for hinged connection with the connector 11. That is, the second connecting end 151 of the transmission hinge 15 is the end of the transmission hinge 15 away from the door body 21. The first connecting end 112 of the connector 11 can be configured as a rotating shaft, and the second connecting end 151 of the transmission hinge 15 is configured as a hook structure for fastening and engaging the rotating shaft. This achieves the purpose of hinged connection of the transmission hinge 15 of the door body 2 to the connector 11. It not only achieves the purpose of connecting the door body 2 to the connector 11, but also allows the position of the hinge between the transmission hinge 15 and the connector 11 to be adjusted during the opening and closing process of the door body 2, thereby ensuring the stability and smoothness of the door body 2 during the opening and closing process.

[0062] Furthermore, such as Figure 8 , Figure 9 and Figure 10As shown, one end of the telescopic member 3 is connected to the locking member 12, and the other end is used to connect to the electrical body 4. Preferably, the end of the telescopic member 3 is connected to the main body base 41 of the electrical body 4. It is understood that the telescopic member 3 has certain elastic properties. The telescopic member 3 can be configured to have good overall elasticity, such as using a silicone-made traction rope, which can uniformly deform during the rotation of the door 2. Alternatively, the telescopic member 3 can also have only a portion with good elasticity. For example, the telescopic member 3 includes a pull rope 31 and a tension spring 32. One end of the pull rope 31 is connected to the locking member 12, and the tension spring 32 is connected to the other end of the pull rope 31. The tension spring 32 can generate elastic deformation during the rotation of the door 2, ensuring that the door 2 can open, close, and rotate smoothly.

[0063] Please see Figure 3 When the telescopic member 3 breaks at any point, the first stop 121 and the second stop 131 cooperate to restrict the rotation of the door 2 when the telescopic member 3 breaks. That is, when the traction force applied to the locking member 12 by the telescopic member 3 is removed, the first stop 121 is triggered to move closer to the second stop 131 until the first stop 121 acts on the second stop 131. At this time, the first stop 121 stops moving due to the constraint of the second stop 131, and the locking member 12, the connecting member 11, and the door 2 all stop deflecting. This allows the door 2 to be stopped from falling further after the pull rope 31 / telescopic member 3 breaks, thus improving the safety of the user during use.

[0064] That's understandable; please refer to the details. Figure 5 and Figure 5 As shown, the connecting member 11 and the locking member 12 are both movably disposed on the same side of the support member 13 to prevent the door 2 from touching the support member 13 and causing movement interference during opening, closing, and flipping. Preferably, under the traction of the telescopic member 3, the transmission hinge member 15, the connecting member 11, and the locking member 12 are all on the extension path of the telescopic member 3, and the extension path of the telescopic member 3 is parallel to the outer surface of the support member 13. This ensures that even if the locking member 12 and its first stop 121 vibrate during movement, they can still effectively avoid the support member 13 and the second stop 131. That is, when the telescopic member 3 is in normal use, the first stop 121 and the second stop 131 do not interfere with each other. However, when the telescopic member 3 breaks, the first stop 121 can move towards the second stop 131 and lock with it. In this case, the locking member 12, the connecting member 11, and the door 2 will be locked and unable to deflect.

[0065] As a preferred embodiment, please refer to [link / reference]. Figure 8 , Figure 9 and Figure 10The door hinge assembly 1 also includes an elastic element 14, which is preferably a tension spring, but can also be a torsion spring or an elastic sheet. One end of the elastic element 14 is connected to the connector 11, and the other end is connected to the locking element 12. This connection can be either a snap-fit ​​or a welded connection. In its original state, the telescopic member 3 does not undergo elastic deformation; in normal use, the telescopic member 3 will be stretched and undergo significant deformation. The elastic element 14 is used to drive the first stop 121 to move toward the second stop 131 when the telescopic member 3 breaks. That is, since the traction force applied to the locking member 12 by the telescopic member 3 is removed, the balance between the original traction force and the elastic force is disrupted. Under the action of the elastic element 14 deformation recovery, the locking member 12 will deflect toward the support member 13 from the center position of the first transition end 122 of the locking member 12, thereby driving the first stop 121 to move toward the second stop 131. This is to prevent the door body 2 from falling further after the pull rope 31 / telescopic member 3 breaks.

[0066] This is understandable; please refer to the details. Figure 6 The first stop 121 is a latching structure that protrudes from the locking member 12 toward the second stop 131. When the first stop 121 moves closer to the second stop 131, it abuts against the main support member 133 of the support member 13. The frictional resistance between the first stop 121 and the main support member 133 significantly reduces the downward tilting speed of the door 2. Furthermore, as... Figure 4 As shown, the second stop 131 is provided on the side of the support member 13 away from the door body 2. The second stop 131 is a slot structure provided on the support member 13. The slot structure preferably extends from the main support member 133 along the height direction H of the main body base 41 to the support connection part 135. Figure 6 and Figure 7 As shown, when the first stop part 121 moves into the second stop part 131 with the slot structure, the first stop part 121 and the second stop part 131 engage and cooperate, so as to achieve the purpose of the second stop part 131 constraining the first stop part 121.

[0067] In addition to the second stop portion 131 being a slot structure provided on the support member 13, the second stop portion 131 is a protruding structure. This protruding structure can be a protrusion, which can be hemispherical, columnar, frustum-shaped, or conical. The number of protrusions can be one or more, and the multiple protrusions are arranged along the height direction H of the main body base 41. Alternatively, the support member 13 may also have a support extension portion 137, which extends along the second direction G and is disposed on the support main body 133 and / or the support connecting portion 135. This protruding structure can be a ridge, which extends along the second direction G. The number of ridges can be one or more, and the multiple protrusions are arranged along the height direction H of the main body base 41. When the first stop 121 abuts against the second stop 131, the first stop 121 will also engage with the second stop 131, thus achieving the purpose of the second stop 131 constraining the first stop 121.

[0068] As another optional embodiment, the door hinge assembly 1 further includes a movable member, a return spring, and a stop member. The movable member has a conical actuating head and a connecting head for connecting the telescopic member 3. The actuating head and the connecting head are respectively located at two opposite ends of the movable member. The locking member 12 has an adjustment cavity inside, and the return spring is located in the adjustment cavity. The movable member passes through the return spring and the locking member 12 in sequence and extends out of the locking member 12, so that the connecting head is located outside the locking member 12. One end of the return spring abuts against the actuating head, and the other end abuts against the inner wall of the adjustment cavity. The stop member is inserted into the locking member 12 and partially extends into the adjustment cavity. The central axis of the stop member faces the side of the support member 13. This stop member is the first stop part 121.

[0069] After assembly and during normal use, the return spring will be compressed and undergo significant deformation. When the telescopic member 3 breaks, the traction force applied to the locking member 12 by the telescopic member 3 is removed, disrupting the balance between the original traction force and the elastic force of the return spring. As the return spring recovers its deformation, the movable member slides toward the stop member until the contact head of the movable member abuts against the stop member, causing the stop member to protrude from the locking member 12 and translate toward one side of the support member 13. This causes the first stop part 121 to abut against the main support member 133 of the support member 13. By utilizing the frictional resistance between the first stop part 121 and the main support member 133, the downward rotation speed of the door 2 can be significantly reduced.

[0070] In this embodiment, the second stop 131 can be a slot structure provided on the support member 13. The extension direction of the slot structure is consistent with the second direction G. When the first stop 121 moves into the second stop 131 of the slot structure, the first stop 121 and the second stop 131 engage, thereby achieving the purpose of the second stop 131 constraining the first stop 121. Of course, the second stop 131 can also be a protrusion structure. The protrusion structure can be a protrusion, which can be hemispherical, columnar, frustum-shaped, or conical. Preferably, the number of protrusions is multiple, and the multiple protrusions are arranged along the second direction G. Alternatively, the protrusion structure can be a ridge, which extends along the second direction G. The number of ridges can be one or more, and the multiple protrusions are arranged along the height direction H of the main body base 41. When the first stop 121 abuts against the second stop 131, the first stop 121 will also engage with the second stop 131, thus achieving the purpose of the second stop 131 constraining the first stop 121.

[0071] It should be noted that during the process of the stop protruding from the locking member 12 and moving towards the support member 13, the locking member 12 will deflect towards the support member 13 with the center position of the first transition end 122 of the locking member 12, thereby driving the first stop part 121 to move closer to the second stop part 131, so as to promptly stop the door body 2 from continuing to fall after the pull rope 31 / telescopic member 3 breaks. Of course, the above-mentioned elastic element 14 can be applied to a technical solution that combines a moving part, a return spring, and a stopper. That is, one end of the elastic element 14 is connected to the connecting part 11, and the other end is connected to the locking part 12, so as to better drive the locking part 12 to deflect toward the side of the support part 13, so as to drive the first stop part 121 to move toward the second stop part 131 when the telescopic part 3 breaks. That is, since the traction force applied to the locking part 12 by the telescopic part 3 is removed, the balance between the original traction force and the elastic force is destroyed. Under the action of the elastic element 14 deformation recovery, the locking part 12 will deflect toward the side of the support part 13 with the center position of the first transition end 122 of the locking part 12.

[0072] In addition, it should be noted that please refer to the following: Figure 1 , Figure 2 and Figure 3 As shown, the aforementioned telescopic component 3 also includes a transmission wheel 33, which is disposed between the tension spring 32 and the locking component 12, with the tension spring 32 wound around the transmission wheel 33. This arrangement allows for more flexible and convenient changes in the direction of force, and the placement of the transmission wheel 33 and the telescopic component 3 can be adjusted according to the actual spatial layout and the movement design requirements of the door 2. Furthermore, the direction of force can be precisely adjusted by selecting transmission wheels 33 in different positions, sizes, and installation angles.

[0073] Preferably, please refer to the following for details. Figure 11 and Figure 12 As shown, the transmission wheel 33 includes a first rotating wheel 331 and a second rotating wheel 332. The first rotating wheel 331 is located on the side closer to the locking member 12, and the second rotating wheel 332 is located on the side away from the locking member 12. Both the first rotating wheel 331 and the second rotating wheel 332 are mounted on the load-bearing side wall 44 of the main body base 41. The pull rope 31 is wound around the second rotating wheel 332 and the first rotating wheel 331 in sequence with the tension spring 32 and is connected to the locking member 12. This arrangement will have the following technical effects:

[0074] On the one hand, the pull rope 31 can be arranged around the first rotating wheel 331 and the second rotating wheel 332. This allows the effective length of the pull rope 31 to be extended or the path of the pull rope 31 to be changed within the limited space inside the electrical appliance body 4. This, in turn, changes the starting and ending positions of the pull rope 31 on the door. This not only meets different spatial layout and operational convenience requirements, but also greatly improves the utilization rate of space and helps to reduce the size of the electrical appliance body 4.

[0075] On the other hand, through the cooperation of the first rotating wheel 331, the second rotating wheel 332, and the tension spring 32, the tension of the pull rope 31 can be adjusted and balanced to the greatest extent, ensuring that the pull rope 31 always pulls the door body 2 in a suitable state. This makes the traction force on the door body 2 more uniform and continuous, avoiding unstable phenomena such as jamming and shaking of the door body 2 during opening and closing due to uneven traction force.

[0076] Optionally, the kitchen appliance may also be equipped with a door lock detection device. This device can detect when the door 2 is in an open state for an extended period and transmit the signal indicating this to the main control system of the kitchen appliance. The main control system then converts and processes the signal. The door lock detection device can be a magnetic door sensor, an infrared sensor, or a micro switch. Furthermore, the kitchen appliance may also be equipped with an early warning module. This module can be a display device (such as a display screen or indicator light), an alarm device, or a combination of both. The early warning module is electrically connected to the main control system, allowing the main control system to send corresponding commands to the early warning module, causing it to issue a warning message.

[0077] With this setup, if the telescopic component 3 does not break and the kitchen appliances are in normal use, the warning module can alert the user to close the door 2 in time (the door 2 can be manually pushed to close, or a control command / program to close the door 2 can be sent to drive the door 2 to close automatically). If the telescopic component 3 breaks at any point, the door 2 will be permanently unable to be opened, and the user will need to contact after-sales service for on-site assistance.

[0078] The above is an explanation of the door hinge assembly proposed in the embodiments of this application. Since the kitchen appliance proposed in the embodiments of this application adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be repeated here.

[0079] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0080] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A door hinge assembly, characterized in that, Applied to household appliances, the household appliances include an appliance body and a door body, and the door hinge assembly includes: Connector, used to connect the door body; A locking member having a first stop portion and being rotatably connected to the connecting member; The telescopic component has one end connected to the locking component and the other end used to connect to the electrical appliance body; and, The support member has a second stop portion, and the first stop portion cooperates with the second stop portion to restrict the door body from rotating when the telescopic member breaks.

2. The door hinge assembly as described in claim 1, characterized in that, Both the connector and the locking member are movably disposed on the same side of the support member; and, When the telescopic member is in normal use, the first stop and the second stop do not interfere with each other; when the telescopic member breaks, the first stop can move toward the second stop and lock with the second stop.

3. The door hinge assembly as described in claim 2, characterized in that, Also includes: An elastic element, one end of which is connected to the connecting element and the other end of which is connected to the locking element, is used to drive the first stop portion to move toward the second stop portion when the telescopic element breaks.

4. The door hinge assembly as described in claim 1, 2, or 3, characterized in that, The first stop is a snap-fit ​​structure that protrudes from the locking member toward the second stop, and the second stop is a slot or protrusion structure provided on the support member. The first stop and the second stop engage with each other.

5. The door hinge assembly as described in claim 1, 2, or 3, characterized in that, It also includes a transmission hinge, wherein the support member is provided with a hinge fulcrum, one end of the transmission hinge near the door body is rotatably connected to the hinge fulcrum, and the other end of the transmission hinge away from the door body is hinged to the connecting member.

6. The door hinge assembly as claimed in claim 5, characterized in that, The telescopic component includes: A pull rope, one end of which is connected to the locking element; and A tension spring is connected to the other end of the pull rope, and the tension spring can produce elastic deformation during the rotation of the door.

7. The door hinge assembly as claimed in claim 6, characterized in that, The telescopic component also includes: A drive wheel is disposed between the tension spring and the locking member, and the tension spring is wound around the drive wheel.

8. The door hinge assembly as claimed in claim 7, characterized in that, The transmission wheel includes a first rotating wheel and a second rotating wheel. The first rotating wheel is located on the side closer to the locking member, and the second rotating wheel is located on the side away from the locking member. The pull rope is wound around the second rotating wheel and the first rotating wheel in sequence from the tension spring and connected to the locking member.

9. A kitchen appliance, characterized in that, include: The door hinge assembly according to any one of claims 1 to 8; The door body is connected to the connecting member via a transmission mechanism, and the door body is hinged to the supporting member; The electrical appliance body is equipped with the telescopic component, the support component is fixedly connected to the electrical appliance body, and the door is connected to the electrical appliance body through the door hinge assembly.

10. The kitchen appliance according to claim 9, characterized in that, There are two door hinge assemblies, and the two door hinge assemblies are respectively arranged on the left and right sides of the electrical appliance body.

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