Lock catch assembly for household appliance, door body structure and household appliance

Abstract

The utility model relates to a household electrical appliance lock catch assembly, a door body structure and a household electrical appliance, the lock catch assembly comprises a lock catch and a mounting seat located below the lock catch, the lock catch is provided with a first connecting hole, the mounting seat is provided with a second connecting hole, and the first connecting hole is communicated with the second connecting hole. The lock catch and the mounting seat are connected through a fastener arranged between the first connecting hole and the second connecting hole in a penetrating manner; the lock catch is characterized in that a guide piece and a guide groove which can be matched in an inserted mode are arranged between the installation base and the lock catch, and in the state that the guide piece is inserted into the guide groove, the first connecting hole and the second connecting hole are aligned and communicated. The guide piece is in guide fit with the guide groove, so that the first connecting hole and the second connecting hole can be aligned conveniently, and the first connecting hole and the second connecting hole are connected through the fastening piece; and the guide piece and the guide groove are matched in an inserting manner, so that the connecting stability of the lock catch and the mounting seat is also improved.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, specifically to a latch assembly, door structure, and household appliance for use in household appliances. Background Technology

[0002] For household appliances with functional cavities, such as dishwashers, steam ovens, and ovens, due to functional requirements, there is usually a door at the opening of the cabinet that can be opened or closed. Furthermore, during the use of the cabinet, the door needs to be locked relative to the cabinet through a door lock structure.

[0003] Door lock structures generally include a latch and a locking body for locking the latch. The latch structure is as shown in the Chinese utility model patent "A Sealing Assembly for a Dishwasher Door Lock Latch" (patent number CN202221188567.2, announcement number CN217501325U), which is installed on the inner door and includes a latch, a sealing gasket, and a latch fixing member. The sealing gasket includes a flat plate and a three-dimensional boss formed on the plate. A through hole is formed on the plate and penetrates its upper and lower surfaces. The three-dimensional boss is formed on the sealing gasket and is located on one side of the through hole. The latch includes an upper part and a lower part. The lower part passes through the through hole, and the three-dimensional boss is installed in the upper part.

[0004] The latch fastener includes a U-shaped mounting portion and a frame portion formed on both sides of the U-shaped mounting portion. A first screw hole is formed on the surface of the U-shaped mounting portion that is mounted with the inner door, and a second screw hole is formed on the U-shaped connecting portion that is aligned with the first screw hole. Screws are installed in the first screw hole and the second screw hole.

[0005] During installation, the first and second screw holes need to be aligned first, and then the screws are used to connect the first and second screw holes. If the first and second screw holes are not aligned, it will affect the connection of the screws. In other words, during installation, an action of aligning the first and second screw holes is required, which is quite cumbersome. In addition, the screws in this patent extend laterally and only serve to connect the latch and the latch fastener, without having the function of pressing the latch and the latch fastener together. Utility Model Content

[0006] The first technical problem to be solved by this utility model is to provide a locking assembly for household appliances that facilitates the alignment of the first connecting hole and the second connecting hole, in light of the current state of the technology.

[0007] The second technical problem to be solved by this utility model is to provide a door structure for household appliances that uses the above-mentioned locking components, in view of the current state of the prior art.

[0008] The third technical problem to be solved by this utility model is to provide a household appliance that applies the above-mentioned door structure, in view of the current state of the prior art.

[0009] The technical solution adopted by this utility model to solve the first technical problem mentioned above is as follows: a latch assembly for household appliances, including a latch and a mounting base located below the latch, wherein the latch is provided with a first connecting hole, the mounting base is provided with a second connecting hole, and the latch and the mounting base are connected by a fastener passing through the first connecting hole and the second connecting hole; characterized in that a guide member and a guide groove that can be inserted and fitted are provided between the mounting base and the latch, and when the guide member is inserted into the guide groove, the first connecting hole and the second connecting hole are aligned and connected.

[0010] In the above scheme, to facilitate the insertion and mating of the guide member and the guide groove, the guide member is located at the bottom of the latch, and the guide groove is located on the mounting base, allowing the guide member to be inserted into the guide groove from top to bottom. Alternatively, the guide member can be located on the mounting base, and the guide groove can be located on the latch.

[0011] The guide member can have various structural forms. Preferably, the guide member includes a connecting post, the first connecting hole is provided on the connecting post, the guide groove includes a slot provided on the mounting base, the connecting post can be inserted into the slot, and the slot is connected to the second connecting hole.

[0012] To further improve the reliability of the guide fit between the latch and the mounting base, the guide also includes a guide piece located next to the connecting post, and the guide groove includes a groove located next to the slot, into which the guide piece can be inserted.

[0013] To further improve the reliability of the guide fit between the latch and the mounting base, the guide member also includes a rib between the guide plate and the connecting post, and the guide groove also includes a recess on the mounting base. The slot and the groove are connected through the recess, and the rib is embedded in the recess.

[0014] Preferably, both the connecting post and the guide plate extend obliquely downwards, and correspondingly, the first connecting hole and the second connecting hole also extend obliquely downwards, as do the fasteners. If the fasteners extend along the vertical plane, there may not be enough space on the door to install them; therefore, extending the fasteners obliquely reduces their vertical space occupation. Furthermore, the fasteners themselves still extend vertically, serving not only to connect the latch and the mounting base but also to press the latch and the mounting base together vertically.

[0015] Preferably, the bottom of the first connecting hole extends through the bottom wall of the connecting post, the top of the first connecting hole is closed, and both ends of the second connecting hole are open. This way, the fasteners are not exposed outside the door, resulting in a better aesthetic appearance.

[0016] In the above scheme, both the first connecting hole and the second connecting hole are threaded holes, and the fastener is a screw.

[0017] The technical solution adopted by this utility model to solve the second technical problem mentioned above is: a door structure for household appliances, characterized in that: it includes a door body and the above-mentioned latch assembly, the top wall of the door body is provided with a vertical through hole, the latch is located above the through hole, the mounting base is located below the through hole, and the guide member passes through the through hole.

[0018] In order to position the latch assembly on the door, the latch is provided with a horizontally extending limiting plate. The limiting plate can press against the upper surface of the top wall of the door, and the latch cannot move downward relative to the door. The top wall surface of the mounting base is flat and abuts against the lower surface of the top wall of the door, and the mounting base cannot move upward relative to the door. After the latch and the mounting base are connected by fasteners, the latch assembly is fixed relative to the door.

[0019] The technical solution adopted by this utility model to solve the third technical problem mentioned above is as follows: a household appliance, characterized in that it includes a cabinet and the aforementioned door structure, one side of the cabinet is open, the door is movably disposed at the open part of the cabinet, and the cabinet is provided with a locking element that can be detached from the latch.

[0020] Compared with the prior art, the advantages of this utility model are as follows: By setting a guide member and a guide groove for guiding cooperation, this utility model not only facilitates the alignment of the first connecting hole and the second connecting hole, so that the fastener connects the first connecting hole and the second connecting hole; but also improves the connection stability of the lock and the mounting base by the insertion cooperation of the guide member and the guide groove. Attached Figure Description

[0021] Figure 1 This is a partial structural diagram of the door structure according to an embodiment of the present utility model;

[0022] Figure 2 for Figure 1 Enlarged view of point A;

[0023] Figure 3 for Figure 1 A sectional view;

[0024] Figure 4 for Figure 1 Another sectional view;

[0025] Figure 5 for Figure 2 A schematic diagram of the latch structure;

[0026] Figure 6 for Figure 2 A schematic diagram of the mounting base. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] like Figures 1-6 As shown, the household appliance in this preferred embodiment can be a steam oven, an oven, a washing machine that can clean tableware and / or fruits and vegetables, etc. Taking the washing machine as an example, the household appliance in this embodiment includes a cabinet (not shown in the figure) and a door structure. The door structure includes a door 1 and a locking assembly. One side of the cabinet is open, and the door 1 is movably disposed at the opening of the cabinet, for example, by a rotating connection, which is the prior art.

[0029] The locking assembly includes a locking buckle 2 and a mounting base 3 located below the locking buckle 2. The locking buckle 2 has a first connecting hole 21, and the mounting base 3 has a second connecting hole 31. The locking buckle 2 and the mounting base 3 are connected by a fastener (not shown in the figure) passing through the first connecting hole 21 and the second connecting hole 31.

[0030] A guide member and a guide groove are provided between the mounting base 3 and the latch 2 for insertion and mating. When the guide member is inserted into the guide groove, the first connecting hole 21 and the second connecting hole 31 are aligned and connected. In this embodiment, both the first connecting hole 21 and the second connecting hole 31 are threaded holes, and the fastener is a screw.

[0031] In this embodiment, the guide member is located at the bottom of the latch 2, and the guide groove is located on the mounting base 3, allowing the guide member to be inserted into the guide groove from top to bottom. Alternatively, the guide member can be located on the mounting base 3, and the guide groove can be located on the latch 2.

[0032] The guide includes a connecting post 41, a guide plate 42, and a rib 43, and the guide groove includes a slot 51, a groove 52, and a recess 53.

[0033] The first connecting hole 21 is provided on the connecting post 41, and the guide groove includes the slot 51 provided on the mounting base 3. The connecting post 41 can be inserted into the slot 51, and the slot 51 is connected to the second connecting hole 31.

[0034] The guide plate 42 is located beside the connecting post 41, and the guide groove includes a groove 52 located beside the slot 51, and the guide plate 42 can be inserted into the groove 52.

[0035] Rib 43 is located between guide plate 42 and connecting post 41. Slot 51 and groove 52 are connected by groove 53. Rib 43 is embedded in groove 53.

[0036] By connecting the post 41, guide plate 42, and rib 43 to guide and cooperate with the slot 51, groove 52, and recess 53 respectively, not only is the reliability of the alignment of the first connecting hole 21 and the second connecting hole 31 improved, but it can also play a role in relative positioning of the latch 2 and the mounting base 3, thereby improving the connection stability of the latch 2 and the mounting base 3.

[0037] In this embodiment, both the connecting post 41 and the guide plate 42 extend obliquely downwards. Correspondingly, the first connecting hole 21 and the second connecting hole 31 also extend obliquely downwards, and the fastener also extends obliquely downwards. If the fastener extends along the vertical plane, there may not be enough space on the door 1 to install the fastener. Therefore, the fastener is extended obliquely to reduce its vertical space occupation. In addition, the fastener as a whole still extends vertically, which not only connects the latch 2 and the mounting base 3, but also presses the latch 2 and the mounting base 3 together vertically.

[0038] The bottom of the first connecting hole 21 extends through the bottom wall of the connecting post 41, and the top of the first connecting hole 21 is closed. The second connecting hole 31 extends vertically through. This way, the fasteners will not be exposed outside the door body 1, resulting in a better aesthetic appearance.

[0039] A vertical through hole 11 is provided on the top wall 10 of the door body 1. The latch 2 is located above the through hole 11, and the mounting base 3 is located below the through hole 11. The guide passes through the through hole 11. The latch 2 is provided with a horizontally extending limiting plate 22. The limiting plate 22 can press against the upper surface of the top wall 10 of the door body 1, and the latch 2 cannot move downward relative to the door body 1. The top wall surface of the mounting base 3 is flat and abuts against the lower surface of the top wall 10 of the door body 1. The mounting base 3 cannot move upward relative to the door body 1. After the latch 2 and the mounting base 3 are connected by fasteners, the latch assembly is fixed relative to the door body 1.

[0040] In this embodiment, the latch 2 is spindle-shaped, but it can also be other shapes. The housing is provided with a locking element that can be detached from the latch 2. The locking element and the latch 2 can be coupled in an existing form, such as the structure of the locking body shown in Figure 18 of Chinese Utility Model Patent No. CN202222909145.6 (Publication No. CN218862312U), entitled "A Top Rod, Door Lock Structure and Household Appliance for a Door Lock Structure".

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this utility model can be set in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A latch assembly for a household appliance, comprising a latch (2) and a mounting base (3) located below the latch (2), wherein the latch (2) has a first connecting hole (21) and the mounting base (3) has a second connecting hole (31), and the latch (2) and the mounting base (3) are connected by a fastener passing through the first connecting hole (21) and the second connecting hole (31); characterized in that, The mounting base (3) and the latch (2) are provided with a guide member and a guide groove that can be inserted and fitted together. When the guide member is inserted into the guide groove, the first connecting hole (21) and the second connecting hole (31) are aligned and connected.

2. The locking assembly according to claim 1, characterized in that: The guide member is located at the bottom of the latch (2), and the guide groove is located on the mounting base (3). The guide member can be inserted into the guide groove from top to bottom.

3. The locking assembly according to claim 2, characterized in that: The guide includes a connecting post (41), the first connecting hole (21) is provided on the connecting post (41), the guide groove includes a slot (51) provided on the mounting base (3), the connecting post (41) can be inserted into the slot (51), and the slot (51) is connected to the second connecting hole (31).

4. The locking assembly according to claim 3, characterized in that: The guide also includes a guide piece (42) located next to the connecting post (41), and the guide groove includes a groove (52) located next to the slot (51), and the guide piece (42) can be inserted into the groove (52).

5. The locking assembly according to claim 4, characterized in that: The guide also includes a rib (43) disposed between the guide piece (42) and the connecting post (41), and the guide groove also includes a groove (53) disposed on the mounting base (3). The slot (51) and the groove (52) are connected through the groove (53), and the rib (43) is embedded in the groove (53).

6. The locking assembly according to claim 4, characterized in that: The connecting post (41) and the guide plate (42) both extend inclined from top to bottom. Correspondingly, the first connecting hole (21) and the second connecting hole (31) also extend inclined from top to bottom, and the fastener also extends inclined from top to bottom.

7. The locking assembly according to claim 6, characterized in that: The bottom of the first connecting hole (21) passes through the bottom wall of the connecting post (41), the top of the first connecting hole (21) is closed, and the two ends of the second connecting hole (31) are open.

8. A door structure for household appliances, characterized in that: The door includes a door body (1) and a latch assembly as described in any one of claims 1 to 7. The top wall (10) of the door body (1) is provided with a vertical through hole (11), the latch (2) is located above the through hole (11), the mounting base (3) is located below the through hole (11), and the guide passes through the through hole (11).

9. The door structure according to claim 8, characterized in that: The latch (2) is provided with a horizontally extending limiting plate (22), which can press against the upper surface of the top wall (10) of the door body (1); the top wall surface of the mounting base (3) is a plane and abuts against the lower surface of the top wall of the door body (1).

10. A household appliance, characterized in that, The box includes a housing and the door structure as described in claim 8, wherein one side of the housing is open, the door (1) is movably disposed at the opening of the housing, and the housing is provided with a locking element that can be detached from the latch (2).

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