Locking element, lifting mechanism and household appliance

Abstract

The utility model discloses a locking piece, lifting mechanism and household appliance relates to household appliance technical field, wherein, locking piece includes lock body, second guide groove and first guide groove, and the side of lock body is in left and right direction as installation side, and first guide groove is established in the installation side of lock body, and first guide groove is used to with the first sliding part of swing arm sliding fit, second guide groove is established in the installation side of lock body and is located the top of first guide groove, and second guide groove is used to with the second sliding part of swing arm sliding fit, and the installation side of lock body is equipped with elastic guide portion, and one end of elastic guide portion extends to one side of second guide groove, and elastic guide portion is elastically movable along left and right direction and sets up, and elastic guide portion is used to the other side of lock body elastic avoidance, to guide second sliding part and slide into second guide groove. The utility model provides technical scheme to improve the problem of lower assembly efficiency between the current household appliance storage rack and lifting mechanism.

Description

[0001] This application claims priority to Chinese Patent Application No. 202420943998.8, filed on April 30, 2024, entitled “Lifting Mechanism and Dishwasher”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This utility model relates to the field of household appliance technology, and in particular to a locking component, a lifting mechanism, and a household appliance. Background Technology

[0003] Household appliances, including dishwashers, refrigerators, freezers, or storage cabinets, are usually equipped with shelves. To facilitate the use of low shelves, the industry has installed lifting mechanisms to raise and lower the low shelves to a certain height, and locking devices on the shelves to lock the shelves at the corresponding height.

[0004] Before use, the shelf equipped with locking components needs to be installed onto the lifting mechanism. This process requires ensuring the cooperation between the swing arm of the lifting mechanism and the locking components. Currently, the assembly process between the swing arm and the locking components is quite difficult, resulting in low assembly efficiency between the shelf and the lifting mechanism. Utility Model Content

[0005] The main purpose of this utility model is to propose a locking component, a lifting mechanism, and a household appliance, aiming to improve the problem of low assembly efficiency between shelves and lifting mechanisms in current household appliances.

[0006] To achieve the above objectives, the present invention proposes a locking component used in the lifting mechanism of a household appliance, and disposed on a first shelf for cooperating with a swing arm. This restricts the relative movement between the swing arm and the first shelf when the swing arm swings the first shelf upwards to its maximum lifting position and the first shelf moves to its top locking position. The locking component comprises:

[0007] The lock body has its mounting side on the left-right side;

[0008] The second guide groove is provided on the mounting side of the lock body, and the second guide groove is used to slide with the second sliding part of the swing arm;

[0009] A first guide groove is provided on the mounting side of the lock body and located below the second guide groove. The first guide groove is used to slide with the first sliding part of the swing arm.

[0010] The lock body has an elastic guide on its mounting side. One end of the elastic guide extends to one side of the second guide groove. The elastic guide is elastically movable in the left-right direction. The elastic guide is used to elastically avoid the other side of the lock body so as to guide the second sliding part into the second guide groove.

[0011] In one embodiment, the elastic guide portion is disposed on the side of the second guide groove adjacent to the first guide groove.

[0012] In one embodiment, the two ends of the elastic guide portion are corresponding to an inner end and an outer end, the inner end is disposed adjacent to the second guide groove, and the elastic guide portion has a guide section adjacent to the outer end and disposed at an inclination.

[0013] In one embodiment, the elastic guide portion includes an elastic cantilever, the two ends of which are corresponding to an inner end and an outer end. The inner end is disposed adjacent to the second guide groove, and the outer end is connected to the lock body.

[0014] In one embodiment, the inner end is positioned higher than the outer end in the left-right direction and in a direction away from the lock body.

[0015] In one embodiment, the lock body is provided with a mounting part, which is used to cooperate with the tail section slide rail or the first shelf in the lifting mechanism to fix the lock body to the tail section slide rail or the first shelf.

[0016] In one embodiment, the mounting portion is disposed in the vertical direction to mate with the mating portion in the vertical direction; and / or,

[0017] The mounting part includes a downward-protruding mounting buckle.

[0018] In one embodiment, the locking member further includes a locking structure, which includes a locking part disposed on one side of the first guide groove and adjacent to the tail end of the first guide groove. The locking part is elastically movable along the width direction of the first guide groove and can move to a locking position near the tail end of the first guide groove under the action of elastic force.

[0019] In one embodiment, a mounting groove is provided on one side wall of the first guide groove, and the locking part is mounted in the mounting groove;

[0020] The lock body is equipped with an elastic element, which provides elastic force to the locking part.

[0021] Furthermore, this utility model also provides a lifting mechanism for raising and lowering a first shelf of a household appliance, enabling the first shelf to switch between a bottom position to be raised and a top position to be raised to its maximum height. The lifting mechanism includes:

[0022] A fixed arm for mounting in the receiving cavity of the household appliance;

[0023] At least one swing arm, on which a first hinge mounting portion and a second hinge mounting portion are formed, the first hinge mounting portion being hinged to the fixed arm, and the second hinge mounting portion being used for direct or indirect hinge mounting to the first shelf, and the swing arm forming a first sliding portion and a second sliding portion; and,

[0024] The locking member has a first sliding portion and a second sliding portion that are slidably disposed in a first guide groove and a second guide groove, respectively.

[0025] In one embodiment, the lifting mechanism further includes a slide rail structure, which includes multiple slide rail sections that are slidably connected to each other. The multiple slide rail sections include at least a first slide rail section and a last slide rail section. The first slide rail section is directly or indirectly hinged to the second hinge mounting part of the swing arm, and the last slide rail section is connected to the lock body.

[0026] The swing arm can swing the first shelf forward and upward from the bottom position to the top lifting limit position. When the first shelf is at the top lifting limit position, the multi-section slide rail extends forward and backward and can slide relative to each other so that the first shelf can slide to the top locking position.

[0027] In one embodiment, two swing arms are provided, and the lifting mechanism further includes a connecting member, wherein the second hinge mounting portions of the two swing arms are hinged to the connecting member;

[0028] The connector is attached to the first section of the slide rail.

[0029] In addition, this utility model also provides a household appliance, including:

[0030] The shell has a receiving cavity;

[0031] A lifting mechanism, wherein the fixed arm of the lifting mechanism is disposed on the side wall of the receiving cavity; and,

[0032] The first shelf is installed on the lock body of the locking component;

[0033] The lifting mechanism allows the first shelf to switch between the bottom position to be lifted and the top position to be lifted to its maximum height.

[0034] In one embodiment, a second shelf is provided in the receiving cavity, and corresponding to the top lifting limit position, the lower end of the first shelf is higher than the lower end of the second shelf.

[0035] In one embodiment, the household appliance includes a dishwasher, wherein the first shelf is configured as a lower dish rack and the second shelf is configured as an upper dish rack.

[0036] In the technical solution of this utility model, the locking component can be pre-installed on the first shelf. Since the lock body is provided with a second guide groove and a first guide groove, and an elastic guide part is also provided on one side of the second guide groove, during the installation of the first shelf, the first sliding part of the swing arm can be first inserted into the first guide groove of the locking component. At this time, by adjusting the position of the first sliding part in the first guide groove, the second sliding part on the swing arm can be aligned to the side of the second guide groove, that is, the side corresponding to the position of the elastic guide part. Then, by pushing and pulling the first shelf, the second sliding part can abut against the elastic guide part and push the elastic guide part to move elastically in the left and right direction. At this time, the elastic guide part can avoid the second sliding part, and the second sliding part can slide smoothly into the second guide groove. The elastic guide part, which has lost its pushing effect, can be reset and form a block on the second sliding part, thus completing the assembly of the locking component and the swing arm. Compared to the current solution that requires both the second sliding part and the first sliding part to be installed into the second guide groove and the first guide groove simultaneously, in this technical solution, due to the setting of the elastic guide part, the second sliding part is allowed to be installed into the second guide groove from the side of the second guide groove. Therefore, the installation difficulty of the locking part and the swing arm as a whole can be reduced by assembling the first sliding part and the second sliding part in sequence, thereby improving the assembly efficiency between the first shelf and the lifting mechanism in the household appliance. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0038] Figure 1 A schematic diagram of the structure of an embodiment of the locking member provided by this utility model;

[0039] Figure 2 for Figure 1 Another structural schematic diagram of the central locking component;

[0040] Figure 3 for Figure 1 A magnified view of a section at point G in the middle;

[0041] Figure 4 A schematic diagram of a lifting mechanism according to an embodiment of the present invention;

[0042] Figure 5 for Figure 4 A magnified view of a section at point A in the middle;

[0043] Figure 6 for Figure 4 A partial three-dimensional structural diagram of the lifting mechanism;

[0044] Figure 7 for Figure 4 A three-dimensional structural diagram of the remaining parts of the lifting mechanism;

[0045] Figure 8 for Figure 7 A magnified view of a portion at point B;

[0046] Figure 9 for Figure 8 A magnified view of a section at point H in the middle;

[0047] Figure 10 for Figure 7 A magnified view of a section at point C;

[0048] Figure 11 for Figure 7 A structural schematic diagram of the mounting components;

[0049] Figure 12 A schematic diagram of the lifting mechanism provided by this utility model in the first assembly step;

[0050] Figure 13 for Figure 12 A magnified view of a section at point D;

[0051] Figure 14 A schematic diagram of the lifting mechanism provided by this utility model in the second assembly step;

[0052] Figure 15 for Figure 14 A magnified view of a section at point E in the middle;

[0053] Figure 16 A cross-sectional structural schematic diagram of the lifting mechanism provided by this utility model;

[0054] Figure 17 for Figure 16 A magnified view of a section at point F in the middle;

[0055] Figure 18 A three-dimensional structural schematic diagram of an embodiment of the household appliance provided by this utility model (the first shelf is located at the bottom storage position, and the swing arm of the lifting mechanism is located at the lower limit position);

[0056] Figure 19 for Figure 18 A three-dimensional structural diagram including a lifting mechanism and a first shelf;

[0057] Figure 20 for Figure 18 The diagram includes a front view of the lifting mechanism and the first shelf.

[0058] Figure 21 for Figure 18 A three-dimensional structural diagram of a household appliance (the first shelf is at the bottom and ready to be lifted, and the swing arm of the lifting mechanism is at the lower limit position).

[0059] Figure 22 for Figure 21 The diagram includes a front view of the lifting mechanism and the first shelf.

[0060] Figure 23 for Figure 18 A three-dimensional structural diagram of a household appliance (the first shelf is at the top lifting limit position, and the swing arm of the lifting mechanism is at the upper swing limit position).

[0061] Figure 24 for Figure 23 The diagram includes a front view of the lifting mechanism and the first shelf.

[0062] Figure 25 for Figure 18 A three-dimensional structural diagram of a household appliance (with the first shelf in the top locked position and the swing arm of the lifting mechanism in the upper limit position);

[0063] Figure 26 for Figure 25 The diagram includes a front view of the lifting mechanism and the first shelf.

[0064] Explanation of icon numbers:

[0065] 100. Lifting mechanism;

[0066] 1. Fixed arm; 2. Swing arm; 21. First hinge mounting part; 22. Second hinge mounting part; 23. Second sliding part; 24. First sliding part; 3. Locking element; 31. Lock body; 311. Mounting side; 32. Second guide groove; 321. Second arc segment; 33. First guide groove; 331. First arc segment; 332. First connecting segment; 332a. Mounting groove; 3321a. First groove segment; 3322a. Second groove segment; 34. Elastic guide part; 34a. Elastic cantilever; 341. Inner end; 341a. Stop plate; 342. Outer end; 342a. Guide segment; 35. Mounting part; 351. Mounting buckle 352. Buckle part; 3521. Support buckle part; 353. Limiting part; 3531. Limiting groove; 3531a. First limiting groove; 3531b. Second limiting groove; 354. Hook part; 4. Mounting part; 41. Second buckle part; 411. Second support buckle part; 42. Second mounting part; 421. Mounting protrusion; 43. Second limiting part; 431. Third limiting groove; 5. Connecting part; 6. Slide rail structure; 61. First slide rail; 62. Tail slide rail; 621. Mating hole; 622. Second mating hole; 63. Intermediate slide rail; 7. Locking structure; 71. Locking part; 72. Elastic element; 73. Guide part;

[0067] 1000. Household appliances;

[0068] 200. Shell; 201. Receiving cavity; 2012. Side wall;

[0069] 300. First shelf; 301. Steel wire;

[0070] 400. Second shelf.

[0071] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0072] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0073] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0074] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0075] Household appliances, including dishwashers, refrigerators, freezers, and storage cabinets, are usually equipped with shelves. To facilitate the use of low shelves, the industry has incorporated lifting mechanisms to raise and lower them to a certain height. Current lifting mechanisms typically include a swing arm and a locking mechanism. One end of the swing arm is hinged inside the appliance's housing, while the other end is directly or indirectly hinged to the shelf. The locking mechanism is located on the shelf. When the shelf is raised to the corresponding height, pushing or pulling the shelf keeps the locking mechanism and the swing arm locked, thus locking the shelf at the corresponding height.

[0076] Before use, the shelf equipped with the locking mechanism needs to be installed on the swing arm of the lifting mechanism. This process requires ensuring the assembly between the swing arm of the lifting mechanism and the locking mechanism. Since the swing arm and the locking mechanism are generally assembled through multiple guide grooves and multiple sliding parts, it is difficult to install multiple sliding parts from the port of the guide groove into multiple corresponding guide grooves, resulting in low assembly efficiency between the shelf and the lifting mechanism.

[0077] In view of this, this utility model proposes a locking component, a lifting mechanism, and a household appliance, aiming to improve the problem of low assembly efficiency between shelves and lifting mechanisms in current household appliances. Among them, Figure 1 and Figure 3 A schematic diagram of the structure of the locking component provided by this utility model; Figures 4 to 11 A schematic diagram of the lifting mechanism provided by this utility model; Figures 12 to 17 A schematic diagram of the lifting mechanism provided by this utility model; Figures 18 to 26 A schematic diagram of the structure of the household appliance provided by this utility model.

[0078] Please see Figure 1 , Figure 2 and Figure 5The locking member 3 provided by this utility model is used on the lifting mechanism 100 of a household appliance 1000 and is installed on the first shelf 300 to cooperate with the swing arm 2. When the swing arm 2 swings the first shelf 300 upward to its maximum lifting position and the first shelf 300 moves to its top locking position, it restricts the relative movement between the swing arm 2 and the first shelf 300. The locking member 3 includes a lock body 31, a second guide groove 32, and a first guide groove 33. The side of the lock body 31 in the left-right direction is the mounting side 311, and the first guide groove 33 is located on the mounting side 311 of the lock body 31. The guide groove 33 is used to slide with the first sliding part 24 of the swing arm 2. The second guide groove 32 is provided on the mounting side 311 of the lock body 31 and is located above the first guide groove 33. The second guide groove 32 is used to slide with the second sliding part 23 of the swing arm 2. The mounting side 311 of the lock body 31 is provided with an elastic guide part 34. One end of the elastic guide part 34 extends to one side of the second guide groove 32. The elastic guide part 34 is elastically movable in the left and right direction. The elastic guide part 34 is used to elastically avoid the other side of the lock body 31 so as to guide the second sliding part 23 to slide into the second guide groove 32.

[0079] It should be noted that in this utility model, the user of the household appliance 1000 is used as the directional reference. "Forward" refers to the direction facing the user, or the direction facing the side of the household appliance 1000 where the door is located; "backward" refers to the direction opposite to "forward," specifically the direction away from the user; and "up and down" refers to the direction with gravity as the reference. The first shelf 300 of the household appliance 1000 typically has several important positions during its movement, commonly including a bottom storage position (as shown in the attached diagram). Figure 18 (As shown), the bottom position to be lifted (as attached) Figure 21 (As shown), the top lifting limit position (as attached) Figure 23 (as shown) and the top locking position (as attached) Figure 25 (As shown). Correspondingly, within the household appliance 1000, when the swing arm 2 is at its upper limit position, the corresponding first shelf 300 can be at its top lifting limit position and top locking position. When the swing arm 2 is at its lower limit position, the corresponding first shelf 300 can be at its bottom storage position and bottom lifting position.

[0080] "The locking element 3 is disposed on the first shelf 300." The locking element 3 can generally be disposed on the first shelf 300 via the lock body 31, allowing the locking element 3 to move along with the first shelf 300. Since the first shelf 300 is locked to the swing arm 2 by the lock body 31, the lock body 31 needs to have a certain degree of hardness and strength. Its material can be various; specifically, the lock body 31 can be made of metal alloys such as steel and aluminum alloys, inorganic non-metallic materials such as ceramics, or polymer materials such as plastics. As long as it can support and lock the first shelf 300 under load, this utility model does not impose any limitations. Furthermore, the lock body 31 can have various shapes, such as rectangular or pentagonal, and this utility model does not impose any limitations on these shapes.

[0081] The second guide groove 32 and the first guide groove 33 typically have a second arc-shaped segment 321 and a first arc-shaped segment 331, respectively. During the movement of the locking member 3 between the top lifting limit position and the bottom lifting position of the first shelf 300, the second sliding part 23 and the first sliding part 24 on the swing arm 2 typically move within the second arc-shaped segment 321 and the first arc-shaped segment 331, respectively. Normally, the second arc-shaped segment 321 and the first arc-shaped segment 331 are respectively set as arc segments, and their corresponding centers and central angles are the same (the central angle through which the second sliding part 23 slides in the second arc-shaped segment 321 is generally the same as the central angle through which the first sliding part 24 slides in the first arc-shaped segment 331). When the second sliding part 23 enters the second guide groove 32 after passing through the elastic guide part 34, the second sliding part 23... The position of the central angle of the first sliding part 24 should be the same, but it is not excluded that the second arc segment 321 and the first arc segment 331 are respectively irregular arc segments. However, in any case, the second arc segment 321 and the first arc segment 331 should be adapted to the relative movement of the swing arm 2 and the first shelf 300. In addition, at least one of the second guide groove 32 and the first guide groove 33 is a groove that can play a locking role. It should have other locking groove segments. The extension path of the locking groove segment is not adapted to the relative movement of the swing arm 2 and the first shelf 300, so as to achieve the purpose of cooperating with the corresponding sliding part to lock the swing arm 2 and the locking member 3. The focus of this embodiment is the setting of the elastic guide part 34. This embodiment does not limit how the swing arm 2 and the locking member 3 are locked.

[0082] "Elastic guide part 34" generally refers to a component with elasticity. There are various material choices for the corresponding material. Specifically, the elastic guide part 34 can be made of metal alloys such as steel and aluminum alloys, or it can be made of polymer materials such as plastics. In this embodiment, the elastic guide part 34 is limited to being located on one side of the second guide groove 32, which can also be understood as being located on one side of the second guide groove 32 along its width direction. It is not limited to which specific side of the width direction it is located on. At the same time, the second guide groove 32 itself also has an extension direction. The elastic guide part 34 can be set at any side position of the second guide groove 32 along its extension direction, as long as the position is conducive to the second sliding part 23 being inserted into the second guide groove 32. The "elastic guide part 34" can move elastically in the left-right direction under the abutment of the second sliding part 23. This can be understood as follows: when the second sliding part 23 on the swing arm 2 is aligned to the side of the second guide groove 32 (away from the second guide groove 32), as the locking member 3 moves relative to the swing arm 2, the second sliding part 23 gradually approaches the second guide groove 32. The second sliding part 23 can abut and push against the elastic guide part 34, causing the elastic guide part 34 to move in the left-right direction to avoid the second sliding part 23. Without obstruction, the second sliding part 23 can smoothly slide into the second guide groove 32. Subsequently, the elastic guide part 34, having lost its pushing effect, can reset and block the second sliding part 23. In other words, after the second sliding part 23 reaches the second guide groove 32, it cannot reverse its path through the elastic guide part 34. In other words, the elastic guide part 34 can guide in one direction while stopping and limiting in the opposite direction. There are many structural types corresponding to the "elastic guide part 34," and this embodiment does not limit this.

[0083] In the technical solution of this utility model, the locking member 3 can be pre-installed onto the first shelf 300. Since the lock body 31 is provided with a second guide groove 32 and a first guide groove 33, and an elastic guide part 34 is also provided on one side of the second guide groove 32, during the installation of the first shelf 300, the first sliding part 24 of the swing arm 2 can be first inserted into the first guide groove 33 of the locking member 3. At this time, by adjusting the position of the first sliding part 24 in the first guide groove 33, the second sliding part 23 on the swing arm 2 can be aligned with the first guide groove 33. The side of the second guide groove 32, that is, the side corresponding to the position of the elastic guide part 34, is then pushed and pulled by the first shelf 300. The second sliding part 23 can abut against the elastic guide part 34 and push the elastic guide part 34 to move elastically in the left and right direction. At this time, the elastic guide part 34 can avoid the second sliding part 23, and the second sliding part 23 can slide smoothly into the second guide groove 32. The elastic guide part 34, which has lost its pushing effect, can be reset and form a block on the second sliding part 23, and finally the assembly of the locking part 3 and the swing arm 2 is completed. Compared to the current solution that requires the second sliding part 23 and the first sliding part 24 to be installed into the second guide groove 32 and the first guide groove 33 simultaneously, in this technical solution, due to the setting of the elastic guide part 34, the second sliding part 23 is allowed to be installed into the second guide groove 32 from the side. Therefore, the installation difficulty of the locking part 3 and the swing arm 2 as a whole can be reduced by assembling the first sliding part 24 and the second sliding part 23 in sequence, thereby improving the assembly efficiency between the first shelf 300 and the lifting mechanism 100 in the household appliance 1000.

[0084] In some embodiments, please refer to Figure 1 The elastic guide part 34 is disposed on the side of the second guide groove 32 adjacent to the first guide groove 33. It should be noted that if the elastic guide part 34 is disposed on the side of the second guide groove 32 away from the first guide groove 33, a portion of the solid structure corresponding to the side of the second guide groove 32 away from the first guide groove 33 needs to be reserved on the lock body 31 for the connection of the elastic guide part 34. In this technical solution, since a solid structure is usually disposed between the second guide groove 32 and the first guide groove 33, disposing of the elastic guide part 34 on the side of the second guide groove 32 adjacent to the first guide groove 33 helps to rationally utilize the solid structure of the lock body 31 located between the second guide groove 32 and the first guide groove 33, and simplifies the structural complexity of the lock body 31. Furthermore, based on the initial installation of the first sliding part 24 to the first guide groove 33, the placement of the elastic guide part 34 on the side of the second guide groove 32 adjacent to the first guide groove 33 also facilitates the insertion of the second sliding part 23 into the second guide groove 32 along the extension direction of the first guide groove 33.

[0085] Specifically, the first guide groove 33 also has a first connecting section 332 and a first arc-shaped section 331. The first connecting section 332 and the first arc-shaped section 331 are smoothly connected at one end. The other end of the first arc-shaped section 331 away from the first connecting section 332 is provided through the lower end face of the lock body 31. The first connecting section 332 is located at the tail end of the first guide groove 33 and extends in the front-back direction. When the first sliding part 24 moves to the transition position between the first arc-shaped section 331 and the first connecting section 332, the second sliding part 23 is just on the side of the elastic guide part 34 away from the second guide groove 32, that is, on the side of the elastic guide part 34 in the front-back direction. Then, when the first shelf 300 is pushed and pulled in the front-back direction, the first sliding part 24 can move in the first connecting section 332, and the second sliding part 23 can slide into the second guide groove 32 in the front-back direction through the elastic guide part 34.

[0086] In some embodiments, please refer to Figure 8 and Figure 13 The two ends of the elastic guide portion 34 are an inner end 341 and an outer end 342, respectively. The inner end 341 is disposed adjacent to the second guide groove 32, and the elastic guide portion 34 has a guide section 342a that is adjacent to the outer end 342 and is disposed at an inclination.

[0087] It should be noted that the inner end 341 of the elastic guide part 34 is the end that stops and limits the second sliding part 23 after it slides into the second guide groove 32; the outer end 342 of the elastic guide part 34 can be fixed relative to the position of the lock body 31. For example, the outer end 342 of the elastic guide part 34 can be connected to the first shelf 300 or the lock body 31, or the elastic guide part 34 as a whole can be movable relative to the lock body 31. In this embodiment, the connection method between the outer end 342 of the elastic guide part 34 and the lock body 31 is not limited. Generally speaking, the tilt direction of the guide segment 342a can be various, as long as the guide segment 342a can drive the inner end 341 of the elastic guide part 34 to avoid the second sliding part 23 through its contact with the second sliding part 23 in the direction where the second sliding part 23 approaches the second guide groove 32 via the elastic guide part 34. In this embodiment, this is not limited.

[0088] In this technical solution, since the guide section 342a is inclined, the second sliding part 23 can make the inner end 341 of the elastic guide part 34 move elastically in the left and right directions by abutting against the guide section 342a of the elastic guide part 34, thereby avoiding the movement of the second sliding part 23.

[0089] In some embodiments, please continue reading Figure 8 and Figure 13The elastic guide part 34 includes an elastic cantilever 34a, with an inner end 341 and an outer end 342 at its two ends. The inner end 341 is disposed adjacent to the second guide groove 32, and the outer end 342 is connected to the lock body 31. In this technical solution, the elastic guide part 34 is configured as an elastic cantilever 34a, and the outer end 342 of the elastic cantilever 34a is connected to the lock body 31, so that the elastic cantilever 34a can be integrally formed with the lock body 31. The elastic cantilever 34a can drive its inner end 341 to move in the left and right direction through its own elastic deformation characteristics.

[0090] Furthermore, in some embodiments, the inner end 341 is positioned higher than the outer end 342 in the left-right direction and away from the lock body 31. It is understood that "the inner end 341 is higher than the outer end 342" means that the elastic cantilever 34a has a corresponding tilted posture, allowing the inner end 341 of the elastic cantilever 34a to elastically swing in the left-right direction. The inner end 341 of the elastic cantilever 34a is used to stop the second sliding part 23. Also, because the elastic cantilever 34a has a corresponding tilted posture, after the second sliding part 23 passes, the inner end 341 of the elastic cantilever 34a can return to its tilted, raised state relative to the outer end 342. The second sliding part 23 cannot easily push and deform the elastic cantilever 34a from the inner end 341, thus blocking the second sliding part 23. In principle, the inner end 341 of the elastic cantilever 34a does not need to be specially configured, but in some embodiments, the other end of the elastic cantilever 34a has a stop plate 341a bent towards the lock body 31 (e.g., Figure 8 and Figure 9 (As shown).

[0091] Specifically, the elastic cantilever 34a includes the aforementioned outer end 342 and inner end 341. The outer end 342 of the elastic cantilever 34a is connected to the lock body 31. The inner end 341 of the elastic cantilever 34a is disposed away from the lock body 31 and has a stop plate 341a extending toward the lock body 31. The elastic cantilever 34a blocks the second sliding part 23 located in the second guide groove 32 through the stop plate 341a.

[0092] In some embodiments, please refer to Figure 16 and Figure 17 The lock body 31 is provided with a mounting part 35, which is used to cooperate with the tail section slide rail 62 or the first shelf 300 in the lifting mechanism 100 to fix the lock body 31 to the tail section slide rail 62 or the first shelf 300.

[0093] It should be noted that the lifting mechanism 100 usually also includes a slide rail structure 6. The slide rail structure 6 includes multiple slide rails that are slidably connected to each other. The multiple slide rails include at least a first slide rail 61 and a last slide rail 62. The first slide rail 61 is directly or indirectly hinged to the second hinge mounting part 22 of the swing arm 2. The last slide rail 62 is connected to the lock body 31. The swing arm 2 can swing the first shelf 300 forward and upward from the bottom position to the top lifting limit position. When the first shelf 300 is at the top lifting limit position, the multiple slide rails extend forward and backward and can slide relative to each other so that the first shelf 300 can slide to the top locking position, so that the first shelf 300 can switch between the bottom storage position and the bottom position to be lifted. Since the mating part of the tail section slide rail 62 and the mating part of the first shelf 300 may differ, the corresponding mounting part 35 may also differ. For example, when the mating part of the tail section slide rail 62 is a mating block, the corresponding mounting part 35 should be a mating hole; when the mating part of the first shelf 300 is a steel wire 301, the corresponding mounting part 35 should be a snap-fit ​​part 352. In the above technical solution, by connecting the mounting part 35 with the corresponding mating part, the lock body 31 can be fixed to the tail section slide rail 62 or the first shelf 300, thereby indirectly connecting the tail section slide rail 62 and the first shelf 300 through the lock body 31, reducing the complexity of connecting the tail section slide rail 62 and the first shelf 300.

[0094] In some embodiments, please refer to Figure 2 and Figure 17 The mounting part 35 is arranged vertically to cooperate with the mating part in the vertical direction. The purpose of limiting the orientation of the mounting part 35 in this embodiment is to reflect the corresponding installation process. During the installation of the first shelf 300, the first sliding part 24 can be installed into the first guide groove 33 in the vertical direction first. Since the mounting part 35 is arranged in the upward direction, the lock body 31 can be installed onto the tail section slide rail 62 by continuing to press the mounting part 35 in the vertical direction. Alternatively, the mating part of the first shelf 300 can be aligned with the mounting part 35 in the vertical direction and pressed downward to install the first shelf 300 onto the lock body 31. This makes the installation process of the tail section slide rail 62, the lock body 31 and the first shelf 300 relatively simple.

[0095] In other embodiments, please refer to Figure 2 and Figure 17The mounting part 35 includes a downwardly protruding mounting buckle 351. It should be noted that the mounting part 35 includes the downwardly protruding mounting buckle 351, and correspondingly, the mating part on the tail section slide rail 62 or the first shelf 300 should be a mating hole. The mounting buckle 351 has a head that can elastically deform under interference. This head first contracts during insertion into the mating hole, and after the mounting hole is in place, the head can return to its expanded state, thereby locking the lock body 31 to the tail section slide rail 62. By setting the mounting part 35 as a mounting buckle 351, the lock body 31 can be connected to the tail section slide rail 62 or the first shelf 300 by directly pressing downwards, reducing the difficulty of installing the lock body 31.

[0096] It should be noted that the two parallel technical features mentioned above, "the mounting part 35 is arranged in the vertical direction to cooperate with the mating part in the vertical direction" and "the mounting part 35 includes a downwardly protruding mounting buckle 351", can be provided either one or both.

[0097] In some embodiments, please refer to Figure 2 and Figure 8 The mounting part 35 includes a mounting buckle 351 located at the lower end of the lock body 31 and a hook part 354 located at the upper end of the lock body 31. The hook part 354 is used to hook the corresponding steel wire 301 of the first shelf 300 in the left-right direction. The mounting buckle 351 is used to be inserted downward into the mating hole 621 of the tail section slide rail 62.

[0098] It should be noted that the first shelf 300 is typically composed of horizontally and vertically arranged steel wires 301, which are the connecting parts of the first shelf 300. Figure 7 As shown. Since the hook portion 354 is located at the upper end of the lock body 31 and the mounting buckle 351 is located at the lower end of the lock body 31, the hook portion 354 can cooperate with the mounting buckle 351 to connect the first shelf 300 to the tail section slide rail 62, and restrict the rotation of the first shelf 300, thus ensuring the installation stability of the first shelf 300.

[0099] In some embodiments, please refer to Figure 2 and Figure 10 The mounting part 35 includes multiple latching parts 352, which are disposed on the other side of the lock body 31 in the left-right direction. The latching grooves of the multiple latching parts 352 are opened in the left-right direction and are respectively used to engage with the corresponding steel wires 301 of the first shelf 300 to limit the position of the first shelf 300.

[0100] "The slots of multiple latching parts 352 are set to open in the left and right directions" means that the slots of multiple latching parts 352 are all set to open away from the mounting side 311 in the left and right directions; the process of the corresponding steel wire 301 of the first shelf 300 being inserted into the latching part 352 requires first interfering to open the slot of the latching part 352. After the steel wire 301 is fully inserted into the slot, the slot returns to its natural state, thereby confining the structure within the slot. The limiting direction of the multiple latching parts 352 for the corresponding steel wire 301 should be at least partially different, so as to latch the lock body 31 onto the first shelf 300. By setting the slots of multiple latching parts 352 to open in the same left-right direction, during the installation of the locking member 3 with the first shelf 300, it is only necessary to find the corresponding position (the position where the distribution of the corresponding steel wire 301 on the first shelf 300 matches the distribution of the multiple latching parts 352), and then by pressing the locking member 3 in the left-right direction, the corresponding steel wire 301 on the first shelf 300 can be simultaneously latched into the multiple latching parts 352 of the lock body 31, resulting in high installation efficiency.

[0101] Furthermore, in some embodiments, the plurality of latching parts 352 include a supporting latching part 3521 located at the lower end of the lock body 31, the slot of the supporting latching part 3521 extending in a front-back direction. The supporting latching part 3521 refers to the latching part among the plurality of latching parts 352 that primarily functions as a support. The fact that the slot of the supporting latching part 3521 extends in a front-back direction means that the slot of the supporting latching part 3521 can limit the corresponding steel wire 301 of the first shelf 300 in the vertical direction. The number of supporting latching parts can be one or more; this embodiment does not limit this. By placing the supporting latching part 3521 at the lower end of the lock body 31, the center of gravity of the first shelf 300 can be lowered as much as possible, thereby improving the installation stability of the first shelf 300 on the lifting mechanism 100.

[0102] In some embodiments, please refer to Figure 2The lock body 31 has a limiting part 353 on at least a portion of the latching parts 352 along the left-right direction. The limiting part 353 forms a limiting groove 3531, which is aligned with the corresponding slot on the latching part 352. The limiting groove 3531 is used to limit the position of the first shelf 300. Since there are multiple latching parts 352, "the limiting part 353 is provided on at least a portion of the latching parts 352" means that the limiting part 353 can be provided for only one latching part 352, or it can be provided for multiple latching parts 352, or even for all latching parts 352. The limiting groove 3531 is aligned with the corresponding slot on the latching part 352, meaning that the limiting groove 3531 and the corresponding slot on the latching part 352 extend in the same direction and overlap in the extension direction. By setting the limiting part 353, it can limit the corresponding steel wire 301 on the first shelf 300, that is, it can limit the width of the limiting groove 3531, thereby reducing the snapping pressure of the buckle part 352 (the buckle part 352 can only play a preliminary positioning snapping role for the first shelf 300, while the limiting part 353 plays the main limiting role for the first shelf 300).

[0103] In some embodiments, please continue reading Figure 2 Multiple limiting parts 353 are provided corresponding to the buckle parts 352. One of the limiting parts 353 has a limiting groove 3531, which is a first limiting groove 3531a. The first limiting groove 3531a is used to adapt to and limit contact with the corresponding steel wire 301 of the first shelf 300. The limiting grooves 3531 of the other limiting parts 353 are second limiting grooves 3531b. The width of the second limiting groove 3531b is greater than the width of the first limiting groove 3531a. The first limiting groove 3531a is used to adapt to and limit contact with the corresponding steel wire 301 of the first shelf 300. This means that the width of the first limiting groove 3531a is equivalent to the size of the corresponding steel wire 301 of the first shelf 300, that is, the first limiting groove 3531a and the corresponding steel wire 301 of the first shelf 300 are tightly fitted. The width of the second limiting groove 3531b is greater than the width of the first limiting groove 3531a. This means that the width of the second limiting groove 3531b is greater than the size of the corresponding steel wire 301 of the first shelf 300, that is, the second limiting groove 3531b and the corresponding steel wire 301 of the first shelf 300 are loosely fitted. With this configuration, during the installation of the locking component 3 to the first shelf 300, the positions of the first limiting groove 3531a and the corresponding steel wire 301 can be accurately located first. The installation can be carried out with the first limiting groove 3531a as the reference. This helps to compensate for the manufacturing tolerances of the corresponding steel wire 301 on the first shelf 300 through the second limiting groove 3531b, thus ensuring the assembly quality of the locking component 3 and the first shelf 300.

[0104] In some embodiments, please refer to Figure 1 and Figure 3 The locking member 3 also includes a locking structure 7, which includes a locking part 71. The locking part 71 is disposed on one side of the first guide groove 33 and adjacent to the tail end of the first guide groove 33. The locking part 71 is elastically movable along the width direction of the first guide groove 33 and can move to a locking position close to the tail end of the first guide groove 33 under the action of elastic force.

[0105] It should be noted that when the first sliding part 24 does not act on the locking part 71, the locking part 71 can be kept in the locked position near the rear end of the first guide groove 33 under the action of elastic force. When the first sliding part 24 drives the locking part 71, the driving force is greater than the elastic force, and the locking part 71 can move to the unlocked position away from the rear end of the first guide groove 33. When the first sliding part 24 passes the locking part 71 and reaches the tail end of the first guide groove 33, the locking part 71 can be reset to the locked position near the tail end of the first guide groove 33 under the action of elastic force.

[0106] In the technical solution of this utility model, by setting the locking part 71 near the tail end of the first guide groove 33, when the first shelf 300 is raised to the top lifting limit position, simply continue to drive the first shelf 300 forward, and the locking part 71 will be driven to the unlock position by the first sliding part 24. This allows the first sliding part 24 to slide to the tail end of the first guide groove 33. After the first sliding part 24 passes the position of the locking part 71, the locking part 71 loses the driving force of the first sliding part 24 and resets to the locked position under the action of elastic force, thereby limiting and stopping the first sliding part 24 to lock the first shelf 300 in the top locked position. Thus, when the user uses the first shelf 300, they first pull the first shelf 300 forward to move it forward, allowing the swing arm 2 of the lifting mechanism 100 to move the first shelf 300 forward. The first shelf 300 is swung forward and upward to its maximum lifting position, and then the first sliding part 24 is slid to the first connecting section 332 of the first guide groove 33. Under the limiting action of the locking part 71, the first sliding part 24 can stay at the tail end of the first guide groove 33 and is difficult to slide forward along the first guide groove 33 on its own, so that the swing arm 2 stops swinging and locks the first shelf 300. During the entire lifting and locking process, the user only needs to drive the first shelf 300 forward to complete the lifting and locking of the first shelf 300. This can not only prevent the first shelf 300 from moving up and down due to load changes, making it convenient for the user to pick up and put down items, but also allow the locking part 71 to rebound to the locking position under the action of elastic force, so that the user can determine whether the first shelf 300 has moved to the correct position. The operation is simple and the user experience is good.

[0107] In some embodiments, a mounting groove 332a is provided on one side wall of the first guide groove 33, and the locking part 71 is mounted in the mounting groove 332a; an elastic element 72 is mounted on the lock body 31, and the elastic element 72 is used to provide elastic force to the locking part 71. It should be noted that the elastic element 72 can be of various types, such as rubber or spring, as long as it can provide elastic force to the locking part 71, and this utility model does not limit it in this regard. The elastic element 72 provides elastic force to the locking part 71 to reset the locking part 71 from the unlocked position to the locked position. In this technical solution, by providing the mounting groove 332a to accommodate the locking part 71, the locking part 71 can move along the width direction of the first guide groove 33. At the same time, by providing the elastic element 72, the locking part 71 is elastically positioned in the locked position, so that the locking part 71 can both lock the first sliding part 24 to the tail end of the first guide groove 33 and move under the drive of the first sliding part 24, so that the locking part 71 can spring back to the locked position, thereby making it easy for the user to determine whether the first sliding part 24 has slid into place.

[0108] Furthermore, the width of the locking part 71 is gradually reduced in the direction toward the first guide groove 33, so that the locking part 71 is inclined along the two side walls of the first guide groove 33, thereby facilitating the sliding part 24 to slide into or out of the first connecting section 332.

[0109] Furthermore, in some embodiments, the mounting groove 332a includes a first groove segment 3321a and a second groove segment 3322a distributed along the width direction of the first guide groove 33. The width of the first groove segment 3321a is greater than the width of the second groove segment 3322a. The locking part 71 is elastically and movably mounted on the first groove segment 3321a. The locking structure 7 also includes a guide part 73 disposed on the locking part 71. The guide part 73 is slidably mounted on the second groove segment 3322a. Thus, the second groove segment 3322a and the guide part 73 cooperate to guide the locking part 71, enabling the locking part 71 to move linearly along the width direction of the first guide groove 33, thereby helping to improve the stability of the movement of the locking part 71. Furthermore, there are various molding methods for the locking part 71 and the guide part 73. For example, they can be integrally molded or separately molded. This utility model does not limit this. Specifically, in this embodiment, the locking part 71 and the guide part 73 are integrally molded, which can save subsequent assembly processes and improve the connection strength between the locking part 71 and the guide part 73.

[0110] Furthermore, a connecting groove is provided through both sides of the lock body 31, with one end of the connecting groove connected to the mounting groove 332a. The locking structure 7 also includes a placement part and a connecting part. The placement part is located on the other side of the lock body 31 in the left-right direction. The connecting part passes through the connecting groove and connects the placement part and the locking part 71. The elastic element 72 is provided on the other side of the lock body 31 and is located between the placement part and the lock body 31. In this way, by providing a connecting groove to penetrate both sides of the lock body 31 in the left-right direction, the placement part and the connecting part can be located on the other side of the lock body 31, so that the elastic element 72 can be located on the side of the lock body 31 away from the swing arm 2, so as to separate the elastic element 72 from the swing arm 2, so as to avoid the deformation of the elastic element 72 affecting the swing of the swing arm 2 and reduce the risk of interference between the elastic element 72 and the swing arm 2.

[0111] Furthermore, a receiving groove is provided on the other side of the lock body 31, and one end of the elastic member 72 is disposed in the receiving groove, and the other end is connected to the connecting part. In this way, by providing the receiving groove, the elastic member 72 can be installed so that the elastic member 72 can elastically press the locking part 71 into the locking position.

[0112] In one embodiment of the present invention, the connecting portion includes a first connecting portion of the connecting placement portion and a second connecting portion of the connecting locking portion 71. The width of the first connecting portion is greater than the width of the second connecting portion so that the first connecting portion can abut against the lock body 31. The elastic member 72 connects the first connecting portion. Thus, by setting the smaller second connecting portion and the larger first connecting portion, an abutting surface can be formed so that it abuts against the lock body 31, thereby enabling the locking portion 71 to be positioned in the locking position.

[0113] In some embodiments, the width of the placement portion is smaller than the width of the connecting portion, so that the elastic member 72 can be fitted onto the placement portion, so that the elastic member 72 only deforms along the width direction of the first guide groove 33, thereby reducing the probability that the elastic member 72 deforms along the thickness direction of the lock body 31.

[0114] In order to ensure that the elastic element 72 deforms only along the width direction of the first guide groove 33, the opening of the receiving groove needs to face the mounting groove 332a, so that the elastic element 72 can only be put into the receiving groove from top to bottom, which is inconvenient for installation. Therefore, in this embodiment, the side wall of the receiving groove away from the lock body 31 is set as an opening, and a barrier is provided at the end of the opening away from the communication port. In this way, the side wall of the receiving groove away from the lock body 31 is set as an opening, so that the elastic element 72 can be put into the receiving groove from the side, which is convenient for disassembling and assembling the elastic element 72. At the same time, by setting the barrier, the probability of the end of the elastic element 72 away from the locking part 71 deforming along the thickness direction of the lock body 31 is reduced.

[0115] In some embodiments, the locking structure 7 includes a housing disposed within a mounting groove 332a, wherein an elastic member 72 is disposed within the housing and drives the locking part 71. Thus, by providing the housing so as to provide the elastic member 72, the elastic member 72 can drive the locking part 71 to reset to the locked position.

[0116] In one embodiment of this utility model, the mounting groove 332a is provided with a limiting rib near the groove opening, and the lock body 31 is provided with a deformation groove at the side edge corresponding to the mounting groove 332a. Thus, by providing the limiting rib, the movement of the locking structure 7 in the thickness direction of the lock body 31 is restricted, preventing the locking structure 7 from dislodging from the mounting groove 332a. Simultaneously, by providing the deformation groove, the strength around the mounting groove 332a is reduced, allowing the mounting groove 332a to have a larger deformation, so that the locking structure 7 can be pressed into the mounting groove 332a. It should be noted that there are various types of locking structures 7. In one embodiment, the locking structure 7 includes a spring pin, wherein the locking part 71 includes the pin head of the spring pin.

[0117] In one embodiment of this utility model, the mounting side 311 of the locking member 3 is provided with a clearance groove communicating with the first guide groove 33. The locking part 71 is provided in the clearance groove, one end of which is connected to the lock body 31, and the other end extends at least partially into the first guide groove 33. Thus, by providing the clearance groove, when the first sliding part 24 contacts the locking part 71, the locking part 71 can deform towards the clearance groove along the width direction of the first guide groove 33, so that the first sliding part 24 can slide out of the locking part 71. At the same time, one end of the locking part 71 is connected to the lock body 31, and the other end extends at least partially into the first guide groove 33. On the one hand, the locking part 71 can form the sidewall of the first guide groove 33 to guide the first sliding part 24 to slide along the first guide groove 33. On the other hand, the locking part 71 can form an elastic arm so that the locking part 71 can elastically deform along the width direction of the first guide groove 33 to lock the first sliding part 24 at the tail end of the first guide groove 33. The structure is simple and the cost is low.

[0118] Furthermore, the location of the clearance groove can vary. Specifically, in this embodiment, the clearance groove is located on the lower side of the first guide groove 33. Since the first guide groove 33 guides the first sliding part 24 to slide through its lower sidewall, serving as a bearing sidewall, the clearance groove is located on the lower side of the first guide groove 33. This allows the locking part 71 to easily deform when the first sliding part 24 slides toward the first connecting section 332, thereby facilitating the first sliding part 24 to slide into the first connecting section 332. Of course, in other embodiments, the clearance groove can also be located on the upper side of the first guide groove 33, and this utility model does not limit this.

[0119] In addition, please see Figure 4 and Figure 5This utility model also provides a lifting mechanism 100, which is used to lift the first shelf 300 of a household appliance 1000, so that the first shelf 300 can switch between a bottom lifting position and a top lifting limit position. The lifting mechanism 100 includes a fixed arm 1, at least one swing arm 2 and a locking member 3. The fixed arm 1 is used to be installed in the receiving cavity 201 of the household appliance 1000. A first hinge mounting part 21 and a second hinge mounting part 22 are formed on the same swing arm 2. The first hinge mounting part 21 is hinged to the fixed arm 1, and the second hinge mounting part 22 is used to be directly or indirectly hinged to the first shelf 300. The swing arm 2 is formed with a first sliding part 24 and a second sliding part 23. The second sliding part 23 and the first sliding part 24 of the swing arm 2 are respectively slidably disposed in the second guide groove 32 and the first guide groove 33 of the locking member 3. It should be noted that the specific structure of the locking member 3 is as described in the above embodiments. Since the lifting mechanism 100 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, which will not be described in detail here.

[0120] It should be noted that the household appliance 1000 can be a dishwasher, oven, refrigerator, etc. The household appliance 1000 includes a housing 200, and a receiving cavity 201 is formed inside the housing 200. A first shelf 300 is connected to the receiving cavity 201 through a lifting mechanism 100. Utensils to be placed on the first shelf 300 can be tableware such as bowls, plates, dishes, chopsticks, knives and forks, as well as baked food or items to be refrigerated, etc.

[0121] Furthermore, some household appliances 1000 have only one shelf, such as the first shelf 300. Others have multiple shelves; in embodiments where multiple shelves are provided in the household appliance 1000, two shelves can be provided, such as the first shelf 300 and the second shelf 400. When the two shelves are vertically positioned, they can be described as an upper shelf and a lower shelf. In the description of the embodiments of this utility model, the first shelf 300 corresponds to the upper shelf, and the second shelf 400 corresponds to the lower shelf.

[0122] For the first shelf 300, it is necessary to move the first shelf 300 out of the receiving cavity 201 of the household appliance 1000, then raise it to a suitable position, and finally lock it to a suitable position. Specifically, after the door of the household appliance 1000 is opened, the user needs to put or take out items to be placed in the first shelf 300. The user often pulls the first shelf 300 forward. During the movement of the first shelf 300, a complex movement process will occur, that is, it moves forward and upward at the same time. At this time, the lifting mechanism 100 will follow the movement and support the first shelf 300.

[0123] The first shelving unit 300 has several important positions during its movement, the most common being the bottom storage area (as shown in the attached image). Figure 18 (As shown), the bottom position to be lifted (as attached) Figure 21 (As shown), the top lifting limit position (as attached) Figure 23 (as shown) and the top locking position (as attached) Figure 25 (As shown).

[0124] When the first shelf 300 has four positions: bottom storage position, bottom lifting position, top lifting limit position, and top locking position, when the swing arm 2 is in the lower limit position, the corresponding first shelf 300 is in the bottom storage position and the bottom lifting position; when the swing arm 2 is in the upper limit position, the corresponding first shelf 300 is in the top lifting limit position and the top locking position.

[0125] In some embodiments, please refer to Figure 22 and Figure 24 The lifting mechanism 100 also includes a slide rail structure 6, which includes multiple slide rail sections that are slidably connected to each other. The multiple slide rail sections include at least a first slide rail 61 and a last slide rail 62. The first slide rail 61 is directly or indirectly hinged to the second hinge mounting part 22 of the swing arm 2, and the last slide rail 62 is connected to the lock body 31. The swing arm 2 can swing the first shelf 300 forward and upward from the bottom position to the top lifting limit position. When the first shelf 300 is at the top lifting limit position, the multiple slide rail sections extend forward and backward and can slide relative to each other, so that the first shelf 300 can slide to the top locking position, so that the first shelf 300 can switch between the bottom storage position and the bottom position to be lifted. The positional relationship of the first shelf 300 can be adjusted by the extension and retraction of the multiple slide rail sections. In this way, the first shelf 300 can be moved to the bottom storage position and stored in the receiving cavity 201.

[0126] Furthermore, this utility model does not limit the number of slide rails in the slide rail structure 6. For example, it can be a 2-section slide rail, a 3-section slide rail, or a multi-section slide rail with more than 3 sections, such as 4 sections, 5 sections, 6 sections, etc. This utility model does not limit this. Specifically, in this embodiment, the multiple slide rails also include an intermediate slide rail 63, which is located between the first slide rail 61 and the last slide rail 62. In this way, by setting the intermediate slide rail 63, the sliding stroke of the first shelf 300 is increased so that the first shelf 300 can slide completely out of the receiving cavity 201, so as to prevent the first shelf 300 from interfering with other structures in the housing 200, such as the second shelf 400, when the lifting mechanism 100 lifts the first shelf 300. Furthermore, the number of intermediate slide rails 63 can be one or more, and this utility model does not limit this. However, the more intermediate slide rails 63 there are, the more complex the slide rail 6 becomes and the higher the cost. Therefore, in this embodiment, only one intermediate slide rail 63 is provided, which can both meet the travel requirements of the first shelf 300 and reduce the cost of the slide rail 6.

[0127] In some embodiments, please refer to Figure 10 and Figure 11 The tail section slide rail 62 is also provided with a mounting component 4, which is distributed with the locking component 3 in the front-rear direction. The mounting component 4 is used to connect the first shelf 300. Since the first shelf 300 usually has a certain size in the front-rear direction, the mounting component 4 and the locking component 3 are distributed in the front-rear direction, which helps to place the center of gravity of the first shelf 300 between the mounting component 4 and the locking component 3, thereby reducing the connection pressure of the locking component 3 and improving the installation stability of the first shelf 300 and the tail section slide rail 62.

[0128] In some embodiments, the mounting member 4 has a plurality of second latching parts 41 on one side in the left-right direction. The latching grooves of the plurality of second latching parts 41 are provided with openings in the left-right direction and are respectively used to latch onto the corresponding plurality of steel wires 301 on the first shelf 300 to restrict the position of the first shelf 300. It should be noted that, regarding the setting of the second latching parts 41 on the mounting member 4, please refer to the setting of the latching parts 352 on the locking member 3. The second latching parts 41 may differ from the latching parts 352 only in the number and the setting position. This embodiment will not elaborate on this.

[0129] Furthermore, in some embodiments, the plurality of second latching portions 41 include a second supporting latching portion 411 located at the lower end of the lock body 31, the latching groove of the second supporting latching portion 411 extending in a front-rear direction. It should be noted that regarding the setting of the second supporting latching portion 411 on the mounting member 4, please refer to the setting of the supporting latching portion 3521 on the locking member 3. The second supporting latching portion 411 may differ from the supporting latching portion 3521 only in the number and the setting position, which will not be described in detail in this embodiment.

[0130] In some embodiments, the mounting member 4 is provided with a second mounting portion 42; the tail section slide rail 62 is provided with a second mating portion, and the second mounting portion 42 and the second mating portion are mated in the vertical direction. It should be noted that regarding the setting of the second mounting portion 42 on the mounting member 4, please refer to the setting of the mounting portion 35 on the locking member 3. The second mounting portion 42 may differ from the mounting portion 35 only in the number and position. Correspondingly, the tail section slide rail 62 is provided with a second mating portion, which will not be described in detail in this embodiment.

[0131] Furthermore, in some embodiments, please refer to Figure 6 and Figure 11 The second mounting portion 42 is a mounting protrusion 421, and the second mating portion is a second mating insertion hole 622. The mounting protrusion 421 is inserted into the second mating insertion hole 622. The mounting protrusion 421 is connected to the tail section slide rail 62 via a threaded connection. Combining the technical solution of the mounting portion 35 of the lock body 31 including a mounting buckle 351 in the above embodiments, the method of connecting and buckling the lock body 31 with a locking connection at the front and rear respectively achieves both high connection reliability and simple assembly.

[0132] In some embodiments, please refer to Figure 11 At least a corresponding portion of the second latching part 41 on the mounting component 4 is provided with a second limiting part 43, and the second limiting part 43 forms a third limiting groove 431. The third limiting groove 431 is aligned with the corresponding latching groove on the second latching part 41, and the third limiting groove 431 is used to limit the position of the first shelf 300. It should be noted that regarding the setting of the second limiting part 43 on the mounting component 4, please refer to the setting of the upper limiting part 353 on the locking part 3. The second limiting part 43 may differ from the limiting part 353 only in the number and the setting position. This embodiment will not elaborate on this.

[0133] In one embodiment of this utility model, the number of swing arms 2 is not limited; there can be only one or two. In an embodiment where two swing arms 2 are used, the lifting mechanism 100 partially forms a four-bar linkage, specifically a parallelogram four-bar linkage. Please refer to [link to embodiment of this utility model]. Figure 19 , Figure 20 , Figure 22 , Figure 24 and Figure 26 Two swing arms 2 are provided. The lifting mechanism 100 also includes a connector 5. The second hinge mounting parts 22 of the two swing arms 2 are both hinged to the connector 5. The connector 5 is connected to the first slide rail 61. Through the transition of the connector 5, a hinge mating part can be provided on the connector 5 so as to indirectly connect the swing arms 2 to the first shelf 300, which can simplify the structural form of the first shelf 300 and facilitate the installation of the first shelf 300.

[0134] It should be noted that the state of the connecting part 5 remains unchanged throughout the entire operation of the lifting mechanism 100. Thus, the state of the first shelf 300 remains unchanged throughout the entire operation, ensuring good stability for the stored items. In addition to the first section slide rail 61, the connecting part 5 may also include other main components. These main components can be connected to the first section slide rail 61 by adhesive bonding or welding. Specifically, the main components can be glued to the first section slide rail 61; alternatively, welding can be used, for example, if both the main components and the first section slide rail 61 are made of metal, such as iron or steel, by welding the main components to the first section slide rail 61.

[0135] In one specific embodiment, the lifting mechanism 100 includes a fixed arm 1, two swing arms 2, a connecting member 5, a slide rail structure 6, and a locking member 3. The fixed arm 1 is installed in the receiving cavity 201 of the household appliance 1000. The two swing arms 2 respectively form a first hinge mounting portion 21 and a second hinge mounting portion 22, the two first hinge mounting portions 21 being hinged to the fixed arm 1, and the two second hinge mounting portions 22 being hinged to the connecting member 5. The slide rail structure 6 includes a multi-section slide rail that is slidably connected to each other, the multi-section slide rail including at least a first slide rail 61 and a tail slide rail 62, connecting... Component 5 is connected to the first section slide rail 61, and the tail section slide rail 62 has an upwardly facing mating hole 621; the locking component 3 includes a lock body 31, one side of the lock body 31 in the left-right direction is the mounting side 311, and the other side of the lock body 31 in the left-right direction has a plurality of latching parts 352. The latching grooves of the plurality of latching parts 352 are provided with openings in the left-right direction and are respectively used to engage with the corresponding steel wire 301 of the first shelf 300 to limit the position of the first shelf 300. The mounting side 311 is provided with a second guide groove 32 and a first guide groove 33. The first guide groove 33 and the first guide groove 32 are connected to the first guide groove 33. Two guide grooves 32 are respectively provided on the mounting side 311 of the lock body 31, and the first guide groove 33 is located below the second guide groove 32. The second guide groove 32 is used to slide with the second sliding part 23 of the swing arm 2. The lower end of the first guide groove 33 is provided downward to form a lower end opening. The first guide groove 33 is used to slide with the first sliding part 24 of the swing arm 2. The mounting side 311 of the lock body 31 is provided with an elastic guide part 34. One end of the elastic guide part 34 extends to one side of the second guide groove 32. The elastic guide part 34 is elastically movable in the left and right direction. The guide part 34 is used to elastically avoid the other side of the lock body 31 to guide the second sliding part 23 to slide into the second guide groove 32. The lock body 31 is formed with a downwardly arranged mounting buckle 351, which is installed downwardly in the mating hole 621 of the tail section slide rail 62. The swing arm 2 can swing the first shelf 300 forward and upward from the bottom to the top lifting limit position. When the first shelf 300 is at the top lifting limit position, the multi-section slide rail extends forward and backward and can slide relative to each other so that the first shelf 300 can slide to the top locking position.

[0136] Based on the above technical solution, this utility model provides an assembly method for a lifting mechanism 100. Please refer to... Figure 4 and Figure 5 , Figure 12 and Figure 13 , Figure 14 and Figure 15 To understand this, the assembly method includes:

[0137] S1. Install the lock body 31 of the locking member 3 onto the corresponding steel wire 301 of the first shelf 300 via multiple latches 352, and adjust the swing arm 2 of the lifting mechanism 100 to the upper limit position (e.g., at...). Figure 10 In the middle, swing arm 2 is at the upper swing limit position).

[0138] S2. Align the lower end opening of the first guide groove 33 downwards with the first sliding portion 24 of the swing arm 2, and press down the first shelf 300 so that the first sliding portion 24 of the swing arm 2 is inserted into the lower end opening of the first guide groove 33 (see [link]). Figure 12 );

[0139] S3. Adjust the position of the tail section slide rail 62 in the lifting mechanism 100 in the front-back direction so that the mating hole 621 on the tail section slide rail 62 faces upward and is aligned with the mounting buckle 351 of the locking part 3.

[0140] S4. Continue to press down the first shelf 300 so that the mounting buckle 351 is inserted downward into the mating hole 621, and so that the second sliding part 23 of the swing arm 2 moves relative to the lock body 31 to the side where the outer end 342 of the elastic guide part 34 is located (see [link]). Figure 14 and Figure 15 );

[0141] S5. Push and pull the first shelf 300 in the front-to-back direction so that the second sliding part 23 abuts against the elastic guide part 34 and slides into the second guide groove 32 along the elastic guide part 34 (see [link]). Figure 4 and Figure 5 ).

[0142] In the technical solution of the lifting mechanism 100 containing the mounting component 4, in step S1 of the above assembly method, the mounting component 4 needs to be installed to the corresponding steel wire 301 of the first shelf 300 through multiple second snap-fit ​​parts 41. In step S3 of the above assembly method, when the mating insertion hole 621 on the tail section slide rail 62 is aligned upward to the mounting buckle 351 of the locking component 3, the second mating insertion hole 622 can also be aligned upward to the mounting protrusion 421 of the mounting component 4. In step S4 of the above assembly method, continuing to press down the first shelf 300 can also cause the mounting protrusion 421 to be inserted downward into the second mating insertion hole 622.

[0143] In the design where the mounting part 35 of the locking member 3 includes a mounting buckle 351 and a mating part on the tail section slide rail 62 is a mating hole 621, the locking member 3 and the tail section slide rail 62 can be fixedly installed by simply inserting the mounting buckle 351 downwards into the mating hole 621. In the design where the second mounting part 42 of the mounting member 4 is a mounting block 421 and the second mating part on the tail section slide rail 62 is a second mating hole 622, inserting the mounting block 421 downwards into the second mating hole 622 can only achieve positioning between the mounting member 4 and the tail section slide rail 62, but cannot achieve vertical connection. Therefore, a threaded locking structure is usually required to connect the second mounting part 42 and the tail section slide rail 62.

[0144] Furthermore, this utility model also provides a household appliance 1000, which includes a housing 200, a lifting mechanism 100, and a first shelf 300. The housing 200 forms a receiving cavity 201; the fixed arm 1 of the lifting mechanism 100 is disposed on the side wall 2012 of the receiving cavity 201; the first shelf 300 is mounted on the lock body 31 of the locking member 3 and is hinged to the swing arm 2 of the lifting mechanism 100; the lifting mechanism 100 allows the first shelf 300 to switch between a bottom lifting position and a top lifting limit position. It should be noted that the specific structure of the lifting mechanism 100 is the same as described in the above embodiments. Since this household appliance 1000 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, which will not be described in detail here.

[0145] Within the household appliance 1000, the first shelf 300 can have two positions: a bottom position to be lifted and a top position to be lifted to its maximum extent. In an embodiment where the first shelf 300 can move in the front-back direction relative to the connecting member 5, the first shelf 300 can have three positions: a bottom storage position, a bottom position to be lifted, and a top position to be lifted to its maximum extent. In an embodiment where the first shelf 300 can be locked in a forward-moving position relative to the connecting member 5, the first shelf 300 can have four positions: a bottom storage position, a bottom position to be lifted, a top position to be lifted to its maximum extent, and a top locking position.

[0146] In some household appliances 1000, some have only one shelf, some have two, and some have more. In the technical solution of this utility model, a second shelf 400 is also provided in the receiving cavity 201. Corresponding to the top lifting limit position, the lower end of the first shelf 300 is higher than the lower end of the second shelf 400. That is, at the lifting limit position of the first shelf 300, the lifting height of the first shelf 300 is higher than that of the second shelf 400. The lifting height is larger at this time, which reduces the frequency of users bending over and improves the user experience.

[0147] It should be noted that in the embodiment where there are two shelves in the household appliance 1000, the first shelf 300 is the lower shelf and the second shelf 400 is the upper shelf. When the first shelf 300 is in the top storage position and the second shelf 400 is in the receiving cavity 201, the first shelf 300 is below the second shelf 400 and the two are arranged opposite each other.

[0148] In view of the above embodiments, users need to use the first shelf 300 and the second shelf 400 alternately. That is, when using the first shelf 300 to lift, try to keep the second shelf 400 in the receiving cavity 201; when using the second shelf 400, try to keep the first shelf 300 in the receiving cavity 201, or try not to lift the second shelf 400.

[0149] Of course, regarding the upper end of the first shelf 300 and the upper end of the second shelf 400, in some embodiments, corresponding to the top lifting limit position and the top lifting locking position of the first shelf 300, the upper end of the first shelf 300 protrudes upward beyond the upper end of the second shelf 400. That is, provided that the depths of the first shelf 300 and the second shelf 400 are the same, the first shelf 300 can be in a higher position.

[0150] In the product corresponding to the household appliance 1000 which is a dishwasher, the first shelf 300 corresponds to the lower rack of the dishwasher, and the second shelf 400 corresponds to the upper rack of the dishwasher. When using the lower rack of the dishwasher, the lifting mechanism 100 raises the lower rack of the dishwasher to a position higher than the upper rack. This state provides the same operating height as when the user uses the upper rack of the dishwasher, or even a slightly higher height, resulting in a better user experience.

[0151] The following describes the user's experience using the household appliance 1000, with the first shelf 300 as a reference, based on its structure:

[0152] 1. The first shelf, number 300, is located in the bottom storage area, such as... Figure 18-20 As shown:

[0153] This state indicates that the user is not using the appliance, has just started using it, or has finished using it. In these states, the first shelf 300 is located within the receiving cavity 201 of the household appliance 1000. Figure 18 As can be seen, the first shelf 300 is retracted into the receiving cavity 201. At this time, the swing arm 2 is at the lower limit position, and the sliding part and the guide groove are separated.

[0154] 2. The first shelf, at position 300, is at the bottom and awaits lifting. Figure 21-22 As shown:

[0155] This state refers to the user pulling out the first shelf 300 from the receiving cavity 201, or the user lowering the first shelf 300 after using it. In these states, the first shelf 300 is at the opening of the receiving cavity 201, and the swing arm 2 is still at the lower limit position. At this time, the sliding part is in contact with the front end of the guide groove. When there are multiple guide grooves, such as the second guide groove 32 and the first guide groove 33, there are corresponding multiple sliding parts, including the second sliding part 23 and the first sliding part 24. At this time, the first sliding part 24 is located at the lower end of the first guide groove 33. Then, the first shelf 300 continues to move forward and upward.

[0156] 3. The first shelf is at its maximum lifting position at 300mm. Figure 23-24 As shown:

[0157] This state is when the user raises the first shelf 300, or when the user has finished using the first shelf 300 and has released it from the lock. In these states, the first shelf 300 is at its maximum raised height. Figure 24 It can be seen that at this time, the first sliding part 24 of the swing arm 2 slides to the rear end of the first arc segment 331, and the swing arm 2 is at the upper swing limit position.

[0158] 4. The first shelf 300 is in the top locked position, such as... Figure 25-26 As shown:

[0159] This state represents a locked state after the user raises the first shelf 300. In this state, the user can retrieve or place items that need to be placed. The first shelf 300 is at its maximum raised height in these states. Figure 25-26 It can be seen that the first shelf 300 moved forward a certain distance from its top locking position relative to its top lifting limit position. The first sliding part 24 of the swing arm 2 slid from the rear end of the first arc segment 331 to the first connecting segment 332. The swing arm 2 is still at the upper swing limit position.

[0160] The following will describe a complete user experience flow, based on the above embodiments:

[0161] When a user needs to use the household appliance 1000, they first open the door of the household appliance 1000. The user then pulls the first shelf 300 forward from the bottom storage position out of the receiving cavity 201 to the bottom lifting position. With the swing action of the swing arm 2 of the lifting mechanism 100, the user continues to pull the first shelf 300 forward and upward, so that the first shelf 300 moves from the bottom lifting position to the top lifting limit position. The user continues to pull the first shelf 300 forward, and the first shelf 300 moves from the top lifting limit position to the top locking position. In the locked state, the user can take and put items in the first shelf 300 with less bending over.

[0162] When the user finishes retrieving or placing the items, the user pushes the first shelf 300 back to unlock it and move it from the top unlocked position to the top raised limit position; the user lowers the first shelf 300 so that it moves from the top raised limit position to the bottom ready-to-raise position; the user continues to push the first shelf 300 back so that it moves from the bottom ready-to-raise position to the bottom storage position. When the first shelf 300 is in the bottom storage position, the user can close the door to complete the use of the household appliance 1000.

[0163] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A locking element used in the lifting mechanism of a household appliance, and disposed on a first shelf, for cooperating with a swing arm to restrict relative movement between the swing arm and the first shelf when the swing arm swings the first shelf upward to its top lifting limit position and the first shelf moves to its top locking position, characterized in that, The locking element includes: The lock body has its mounting side on the left-right side; A first guide groove is provided on the mounting side of the lock body, and the first guide groove is used to slide and engage with the first sliding part of the swing arm; The second guide groove is provided on the mounting side of the lock body and located above the first guide groove. The second guide groove is used to slide and engage with the second sliding part of the swing arm. The lock body has an elastic guide on its mounting side. One end of the elastic guide extends to one side of the second guide groove. The elastic guide is elastically movable in the left-right direction. The elastic guide is used to elastically avoid the other side of the lock body so as to guide the second sliding part into the second guide groove.

2. The locking member of claim 1, wherein The elastic guide portion is disposed on the side of the second guide groove adjacent to the first guide groove.

3. The locking member of claim 1, wherein The two ends of the elastic guide portion are corresponding to an inner end and an outer end. The inner end is disposed adjacent to the second guide groove, and the elastic guide portion has a guide section that is adjacent to the outer end and is disposed at an inclination.

4. The locking member of claim 1, wherein The elastic guide part includes an elastic cantilever, the two ends of which are corresponding to an inner end and an outer end. The inner end is disposed adjacent to the second guide groove, and the outer end is connected to the lock body.

5. The locking member of claim 4, wherein In the left-right direction and in the direction away from the lock body, the inner end is set higher than the outer end.

6. The locking member of claim 1, wherein The lock body is provided with a mounting part, which is used to cooperate with the tail section slide rail or the first shelf in the lifting mechanism to fix the lock body to the tail section slide rail or the first shelf.

7. The locking member of claim 6, wherein The mounting portion is arranged in the vertical direction to mate with the mating portion in the vertical direction; and / or, The mounting part includes a downward-protruding mounting buckle.

8. The locking member of claim 1, wherein, The locking member further includes a locking structure, which includes a locking part. The locking part is disposed on one side of the first guide groove and adjacent to the tail end of the first guide groove. The locking part is elastically movable along the width direction of the first guide groove and can move to a locking position near the tail end of the first guide groove under the action of elastic force.

9. The locking member as described in claim 8, characterized in that, A mounting groove is provided on one side wall of the first guide groove, and the locking part is installed in the mounting groove; The lock body is equipped with an elastic element, which provides elastic force to the locking part.

10. A lifting mechanism for lifting a first shelf of a household appliance, such that the first shelf can be lifted and lowered between a bottom position to be lifted and a top position to be lifted to its maximum height, characterized in that... The lifting mechanism includes: A fixed arm for mounting in the receiving cavity of the household appliance; At least one swing arm, on which a first hinge mounting portion and a second hinge mounting portion are formed, the first hinge mounting portion being hinged to the fixed arm, and the second hinge mounting portion being used for direct or indirect hinge mounting to the first shelf, and the swing arm forming a first sliding portion and a second sliding portion; and, The locking member includes the locking member as described in any one of claims 1 to 9, wherein the first sliding portion and the second sliding portion are respectively slidably disposed in the first guide groove and the second guide groove of the locking member.

11. The lifting mechanism as described in claim 10, characterized in that, The lifting mechanism also includes a slide rail structure, which includes multiple slide rail sections that are slidably connected to each other. The multiple slide rail sections include at least a first slide rail section and a last slide rail section. The first slide rail section is directly or indirectly hinged to the second hinge mounting part of the swing arm, and the last slide rail section is connected to the lock body. The swing arm can swing the first shelf forward and upward from the bottom position to the top lifting limit position. When the first shelf is at the top lifting limit position, the multi-section slide rail extends forward and backward and can slide relative to each other so that the first shelf can slide to the top locking position.

12. The lifting mechanism as described in claim 11, characterized in that, Two swing arms are provided, and the lifting mechanism also includes a connecting member, wherein the second hinge mounting parts of the two swing arms are hinged to the connecting member; The connector is attached to the first section of the slide rail.

13. A household appliance, characterized in that, include: The shell has a receiving cavity; A lifting mechanism, including the lifting mechanism as described in any one of claims 10 to 12, wherein the fixed arm of the lifting mechanism is disposed on the side wall of the receiving cavity; and, The first shelf is installed on the lock body of the locking member and is hinged to the swing arm of the lifting mechanism; The lifting mechanism allows the first shelf to switch between the bottom position to be lifted and the top position to be lifted to its maximum height.

14. The household appliance as described in claim 13, characterized in that, A second shelf is also provided in the receiving cavity. Corresponding to the top lifting limit position, the lower end of the first shelf is higher than the lower end of the second shelf.

15. The household appliance as described in claim 14, characterized in that, The household appliance includes a dishwasher, wherein the first shelf is configured as a lower dish rack and the second shelf is configured as an upper dish rack.

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