Household appliance

Abstract

The utility model relates to a household appliance. The household appliance comprises a box body, a shelf; a guide rail assembly; the sliding part is of an integrally-formed annular structure and comprises two first ribs arranged in a vertically-spaced mode, a front limiting strip and a rear limiting strip, the front limiting strip and the rear limiting strip are arranged in a front-back-spaced mode and vertically extend, the first ribs extend in the front-back direction, the rear ends of the two first ribs are connected through the rear limiting strip, and the rear ends of the two first ribs are connected through the rear limiting strip. The front ends of the two first ribs are connected through the front limiting strip. The rear limiting strip and the front limiting strip can abut against the guiding piece, so that the sliding piece moves to the front limit position or the rear limit position relative to the guiding piece. The first rib is in guiding fit with the guiding piece and the positioning piece in the front-back direction. And related parts are few.

Description

Technical Field

[0001] The utility model relates to the technical field of dishwashers, in particular to a household appliance. Background Art

[0002] Household appliances such as dishwashers, disinfection cabinets, and refrigerators usually have shelves inside to place items such as bowls and cups that need to be processed in the household appliances. In order to facilitate the placement of items on the shelves, the shelves can usually be pulled in and out of the inner cavity of the household appliances.

[0003] For example, the Chinese utility model patent disclosed with patent number CN201922134431.8 (publication number CN212015535U) entitled "Guide rail assembly of shelf, shelf and dishwasher" includes an inner tank, and also includes: a guide rail, the cross-section of the guide rail is C-shaped; a connecting piece, one end of the connecting piece is connected to the inner wall of the inner tank, and the other end is connected to the guide rail; a caster, the caster is rotatably connected to the shelf and is arranged on the guide rail, so that the shelf can move relative to the guide rail; a first stopper, the first stopper is a left-right symmetrical structure and is inserted at one end of the guide rail by a snap-on manner; a second stopper, the second stopper is a left-right symmetrical structure and is inserted at the other end of the guide rail by a snap-on manner.

[0004] The guide rail structure of this patent requires a large number of casters and rollers, has a large number of parts, poor applicability, complex assembly, high cost, and poor user experience.

[0005] In addition, the cross-section of the guide rail is C-shaped, one end of the connecting piece is connected to the inner wall of the inner tank, and the other end is connected to the guide rail, the caster is rotatably connected to the shelf and arranged on the guide rail, so that the shelf can move relative to the guide rail, the first stop block is a left-right symmetrical structure and is inserted at one end of the guide rail by a snap-on connection, and the second stop block is a left-right symmetrical structure and is inserted at the other end of the guide rail by a snap-on connection.

[0006] It can be seen from the above that a first stopper and a second stopper need to be inserted on the guide rail to limit the moving stroke. The structure is relatively complex and involves many parts. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide a household appliance with a guide rail assembly involving fewer parts in view of the current status of the prior art.

[0008] The technical solution adopted by the utility model to solve the above technical problems is: a household appliance, comprising

[0009] Box, open front;

[0010] A shelf is arranged in the box body so as to be movable forward and backward, and the shelf can enter and exit the box body from the opening of the box body;

[0011] The guide rail assembly is arranged between the inner wall of the box body and the shelf; the guide rail assembly includes

[0012] A guide member, arranged on the inner wall of the box body;

[0013] A positioning member, arranged on a side wall of the shelf;

[0014] The sliding member is guided and matched with the guide member and the positioning member in the front-to-back direction. When the sliding member moves to the front limit position or the rear limit position relative to the guide member, the sliding member and the positioning member can be displaced in the front-to-back direction. When the sliding member does not move to the limit position relative to the guide member, the sliding member can be displaced in the front-to-back direction relative to the guide member, and the sliding member and the positioning member are relatively fixed;

[0015] The sliding member is an integrally formed annular structure, comprising two first ribs spaced apart from each other in the upper and lower directions and a front limit bar and a rear limit bar spaced apart from each other in the front and rear directions, wherein the front limit bar and the rear limit bar both extend vertically, and the first rib extends in the front-to-back direction, wherein the rear limit bar connects the rear ends of the two first ribs, and the front limit bar connects the front ends of the two first ribs;

[0016] The rear limit strip and the front limit strip can both abut against the guide member, so that the sliding member moves relative to the guide member to the front limit position or the rear limit position;

[0017] The first rib cooperates with the guide member and the positioning member in a guiding manner in the front-rear direction.

[0018] The positioning member can have a variety of structural forms, and the structure is simple. The positioning member includes a positioning plate installed on the shelf and a positioning part arranged on the wall surface of the positioning plate. The positioning part is provided with a positioning groove extending along the front-to-back direction, and the first rib can be moved forward and backward and pass through the positioning groove.

[0019] In the above scheme, there may be one positioning groove, in which one first rib is inserted into the positioning groove; or there may be two positioning grooves spaced apart from each other, in which two first ribs are inserted into the positioning grooves in a one-to-one correspondence.

[0020] Alternatively, there is one positioning groove, and two first ribs are both located in the positioning groove, the upper first rib abuts against the upper wall surface of the positioning groove, and the lower first rib abuts against the lower wall surface of the positioning groove.

[0021] In order to form the positioning groove, the positioning part includes two groups of positioning components spaced apart from each other, and the spacing between the two groups of positioning components is the positioning groove. As long as the first rib is partially clamped between the two groups of positioning components, the first rib can be inserted into the positioning groove.

[0022] The structure is simple, the positioning assembly includes a positioning block; or the positioning assembly includes a plurality of positioning blocks arranged in sequence and at intervals along the front-to-back direction. This structure limits and guides the first rib at multiple points to ensure that the moving trajectory of the first rib is along the front-to-back direction.

[0023] In order to guide the first rib well, a first arc groove matching a part of the first rib is provided on the wall surface of the positioning block facing the positioning groove.

[0024] The guide wheel can have a variety of structural forms, one of which is that the guide member is a guide wheel, the axis of the guide wheel extends in the left-right direction, and the guide wheel is located between two first ribs and can always contact the first ribs.

[0025] In order to reduce the friction between the first rib and the guide wheel so that the first rib can move forward and backward smoothly, the guide wheel can rotate around its axis.

[0026] The guide member can have a variety of structural forms, and the structure is simple. The guide member includes a guide plate installed on the box body and a guide part arranged on the wall surface of the guide plate. The guide part is provided with a guide groove extending along the front-to-back direction, and the first rib can be moved forward and backward and pass through the guide groove.

[0027] In order to form the guide groove, the guide portion includes two groups of guide components spaced apart from each other, and the distance between the two groups of guide components is the guide groove.

[0028] The guide assembly may have various structural forms. Preferably, the guide assembly includes a guide block; or, the guide assembly includes a plurality of guide blocks sequentially spaced apart in the front-to-rear direction.

[0029] In order to guide the first rib well, a second arc groove matching a part of the first rib is provided on the wall surface of at least one of the guide blocks facing the guide groove.

[0030] In order to prevent the shelf from tipping over, the guide rail assembly has two groups, which are respectively arranged on the left and right sides of the shelf. In this way, the left and right sides of the shelf are both provided with guide rail assemblies, which is not easy to tilt and tip over.

[0031] Preferably, the household appliance is a dishwasher or a disinfection cabinet.

[0032] Compared with the prior art, the advantages of the utility model are as follows: the sliding part of the utility model is an integrally formed annular structure with a simple structure, and its front limit bar and rear limit bar serve to limit the moving stroke of the sliding part, and the first rib of the sliding part serves to guide in the front and rear directions. In other words, the sliding part of the utility model has the functions of the guide rail, the first stop block and the second stop block of the prior art at the same time, has a simple structure and involves fewer parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a partial structural diagram of a household appliance according to Embodiment 1 of the present utility model;

[0034] Figure 2 for Figure 1 A schematic diagram of the structure of the shelf and guide rail assembly;

[0035] Figure 3 for Figure 2 A schematic diagram of the structure of the positioning member in FIG.

[0036] Figure 4 This is a schematic structural diagram of a shelf and guide rail assembly according to Embodiment 2 of the present utility model;

[0037] Figure 5 for Figure 4 A schematic diagram of the structure of the guide member;

[0038] Figure 6 for Figure 4 Schematic diagram of the structure of the positioning parts. DETAILED DESCRIPTION

[0039] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0040] Example 1

[0041] like Figures 1 to 3 As shown, the household appliance of this preferred embodiment includes a box body 1, a shelf 2 and a guide rail assembly. The household appliance can be a dishwasher, a disinfection cabinet or a refrigerator, etc. The household appliance of this embodiment takes a dishwasher as an example.

[0042] The front side of the box body 1 is open, the shelf 2 is arranged in the box body 1, the guide rail assembly is arranged between the inner side wall of the box body 1 and the shelf 2, the shelf 2 can be arranged in the box body 1 to move forward and backward under the guidance of the guide rail assembly, and the shelf 2 can enter and exit the box body 1 from the opening of the box body 1. There are two sets of guide rail assemblies, which are respectively arranged on the left and right sides of the shelf 2. In this way, the shelf 2 has guide rail assemblies on both sides, and it is not easy to tilt and overturn.

[0043] The guide rail assembly includes a guide member 3, a positioning member 4 and a sliding member 5. The guide member 3 is arranged on the inner wall of the box body 1, and the positioning member 4 is arranged on the side wall of the shelf 2. The sliding member 5 and the guide member 3 and the positioning member 4 are all guided and cooperated in the front-to-back direction. When the sliding member 5 moves to the front limit position or the rear limit position relative to the guide member 3, the sliding member 5 and the positioning member 4 can be displaced in the front-to-back direction. When the sliding member 5 does not move to the limit position relative to the guide member 3, the sliding member 5 can be displaced in the front-to-back direction relative to the guide member 3, and the sliding member 5 and the positioning member 4 are relatively fixed, so that the friction between the sliding member 5 and the guide member 3 can be smaller than the friction between the sliding member 5 and the positioning member 4.

[0044] The above-mentioned sliding matching process among the guide member 3, the positioning member 4 and the sliding member 5 is prior art.

[0045] In this embodiment, the sliding member 5 is an integrally formed annular structure, including two first ribs 51 spaced apart in the upper and lower parts and a front limit bar 52 and a rear limit bar 53 spaced apart in the front and rear parts, the front limit bar 52 and the rear limit bar 53 both extend vertically, the first rib 51 extends in the front and rear directions, wherein the rear limit bar 53 connects the rear ends of the two first ribs 51, and the front limit bar 52 connects the front ends of the two first ribs 51; the rear limit bar 53 and the front limit bar 52 can both resist against the guide member 3, so that the sliding member 5 moves relative to the guide member 3 to the front limit position or the rear limit position.

[0046] The first rib 51 cooperates with the guide member 3 and the positioning member 4 in the front-rear direction, as follows:

[0047] The positioning member 4 includes a positioning plate 41 mounted on the shelf 2 and a positioning portion provided on the wall surface of the positioning plate 41 . The positioning portion is provided with a positioning groove extending in the front-to-back direction. The first rib 51 is movably disposed in the positioning groove.

[0048] There is one positioning groove, in which one first rib 51 is inserted into the positioning groove; or there may be two positioning grooves spaced apart from each other, and the two first ribs 51 are inserted into the positioning groove in a one-to-one correspondence; or there may be one positioning groove, and both first ribs 51 are located in the positioning groove, the upper first rib 51 abuts against the upper wall surface of the positioning groove, and the lower first rib 51 abuts against the lower wall surface of the positioning groove. This embodiment adopts this method.

[0049] The positioning part includes two groups of positioning components 42 spaced apart from each other, and the spacing between the two groups of positioning components 42 is the positioning groove. As long as the first rib 51 is partially clamped between the two groups of positioning components 42, the first rib 51 can be inserted into the positioning groove.

[0050] The positioning assembly 42 includes a positioning block 421; or, the positioning assembly 42 includes a plurality of positioning blocks 421 arranged in sequence and spaced apart along the front-to-back direction. The positioning assembly 42 of this embodiment has two positioning blocks 421. This structure limits and guides the first rib 51 at multiple points to ensure that the moving trajectory of the first rib 51 is along the front-to-back direction.

[0051] In order to guide the first rib 51 well, a first arc groove 422 matching a part of the first rib 51 is provided on the wall surface of the positioning block 421 facing the positioning groove.

[0052] In addition, in this description, the positioning blocks 421 of the two groups of positioning components 42 can be arranged correspondingly or staggered in the vertical direction.

[0053] The guide member 3 is a guide wheel, the axis of which extends in the left-right direction, and the guide wheel is located between the two first ribs 51 and can always contact the first ribs 51. In order to reduce the friction between the first ribs 51 and the guide wheel so that the first ribs 51 can move forward and backward smoothly, the guide wheel can rotate around its axis.

[0054] The motion process of the guide rail assembly of this embodiment is as follows:

[0055] When the rear limit strip 53 is located behind the guide member 3, the sliding member 5 can move forward relative to the guide member 3, and at this time the sliding member 5 and the positioning member 4 are relatively fixed, that is, the sliding member 5 drives the shelf 2 to move forward synchronously;

[0056] When the rear limit strip 53 abuts against the guide member 3, the positioning member 4 moves forward relative to the sliding member 5. At this time, the sliding member 5 no longer moves forward, and the shelf 2 continues to move forward, ensuring that the shelf 2 has sufficient travel to move outside the box body 1.

[0057] When the front limit strip 52 is located in front of the guide member 3, the positioning member 4 and the sliding member 5 move synchronously, and the sliding member 5 moves backward relative to the guide member 3, that is, the sliding member 5 drives the shelf 2 to move backward synchronously;

[0058] When the front limit strip 52 abuts against the positioning member 4 , the positioning member 4 moves backward relative to the sliding member 5 . At this time, the sliding member 5 stops moving backward, and the shelf 2 continues to move backward.

[0059] Example 2

[0060] like Figures 4 to 6 As shown, this embodiment differs from Embodiment 1 in the following points:

[0061] 1. The guide member 3 of this embodiment includes a guide plate 31 mounted on the box body 1 and a guide portion provided on the wall surface of the guide plate 31. The guide portion is provided with a guide groove extending in the front-rear direction, and the first rib 51 can be moved forward and backward through the guide groove. In order to form the guide groove, the guide portion includes two groups of guide components 32 spaced apart from each other, and the distance between the two groups of guide components 32 is the guide groove.

[0062] The guide assembly 32 includes a guide block 321; or, the guide assembly 32 includes a plurality of guide blocks 321 arranged in sequence and at intervals along the front-to-back direction. In this embodiment, the guide assembly 32 has two guide blocks 321 and one guide groove, in which one first rib 51 is inserted. In order to guide the first rib 51 well, at least one of the guide blocks 321 is provided with a second arc groove 322 adapted to a part of the first rib 51 on the wall surface facing the guide groove.

[0063] 2. The positioning assembly 42 of this embodiment includes a plurality of positioning blocks 421 arranged in sequence and at intervals along the front-to-back direction, and has one positioning groove, in which one first rib 51 is passed.

[0064] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present invention can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

Claims

1. A household appliance, comprising A box body (1) with an open front side; A shelf (2) is arranged in the box body (1) so as to be movable forward and backward, and the shelf (2) can enter and exit the box body (1) from an opening of the box body (1); The guide rail assembly is arranged between the inner wall of the box body (1) and the shelf (2); the guide rail assembly includes A guide member (3) is arranged on the inner wall of the box body (1); A positioning member (4) is arranged on a side wall of the shelf (2); The sliding member (5) is guided and matched with the guide member (3) and the positioning member (4) in the front-to-back direction. When the sliding member (5) moves to the front limit position or the rear limit position relative to the guide member (3), the sliding member (5) and the positioning member (4) can be displaced in the front-to-back direction; when the sliding member (5) does not move to the limit position relative to the guide member (3), the sliding member (5) can be displaced in the front-to-back direction relative to the guide member (3), and the sliding member (5) and the positioning member (4) are relatively fixed. It is characterized in that The sliding member (5) is an integrally formed annular structure, comprising two first ribs (51) spaced apart from each other in the upper and lower directions, and a front limiting bar (52) and a rear limiting bar (53) spaced apart from each other in the front and rear directions, wherein the front limiting bar (52) and the rear limiting bar (53) both extend vertically, and the first rib (51) extends in the front-to-back direction, wherein the rear limiting bar (53) connects the rear ends of the two first ribs (51), and the front limiting bar (52) connects the front ends of the two first ribs (51); The rear limit strip (53) and the front limit strip (52) can both abut against the guide member (3), thereby allowing the sliding member (5) to move relative to the guide member (3) to a front limit position or a rear limit position; The first rib (51) cooperates with the guide member (3) and the positioning member (4) in a guiding manner in the front-rear direction.

2. The household appliance according to claim 1, characterized in that: The positioning member (4) comprises a positioning plate (41) mounted on the shelf (2) and a positioning portion provided on the wall surface of the positioning plate (41); the positioning portion is provided with a positioning groove extending in the front-rear direction; the first rib (51) is inserted into the positioning groove so as to be movable forward and backward.

3. The household appliance according to claim 2, characterized in that: There is one positioning groove, in which one first rib (51) is inserted into the positioning groove; or there are two positioning grooves spaced apart from each other, in which two first ribs (51) are inserted into the positioning grooves in a one-to-one correspondence.

4. The household appliance according to claim 2, characterized in that: There is one positioning groove, and two first ribs (51) are both located in the positioning groove, the first rib (51) located at the top abuts against the upper wall surface of the positioning groove, and the first rib (51) located at the bottom abuts against the lower wall surface of the positioning groove.

5. The household appliance according to claim 2, characterized in that: The positioning portion comprises two groups of positioning components (42) spaced apart from each other, and the spacing between the two groups of positioning components (42) is the positioning groove.

6. The household appliance according to claim 5, characterized in that: The positioning assembly (42) includes a positioning block (421); or, the positioning assembly (42) includes a plurality of positioning blocks (421) arranged in sequence and spaced apart in the front-to-back direction.

7. The household appliance according to claim 6, characterized in that: A first arc-shaped groove (422) adapted to a part of the first rib (51) is provided on the wall surface of the positioning block (421) facing the positioning groove.

8. The household appliance according to any one of claims 1 to 7, characterized in that: The guide member (3) is a guide wheel, the axis of which extends in the left-right direction, and the guide wheel is located between two first ribs (51) and can always be in contact with the first ribs (51).

9. The household appliance according to claim 8, characterized in that: The guide wheel can rotate around its axis.

10. The household appliance according to any one of claims 1 to 7, characterized in that: The guide member (3) comprises a guide plate (31) mounted on the box body (1) and a guide portion provided on the wall surface of the guide plate (31); the guide portion is provided with a guide groove extending in the front-rear direction; the first rib (51) is movably arranged in the guide groove.

11. The household appliance according to claim 10, characterized in that: The guide portion comprises two groups of guide components (32) spaced apart from each other, and the distance between the two groups of guide components (32) is the guide groove.

12. The household appliance according to claim 11, characterized in that: The guide assembly (32) comprises a guide block (321); or, the guide assembly (32) comprises a plurality of guide blocks (321) arranged in sequence and spaced apart in the front-rear direction.

13. The household appliance according to claim 12, characterized in that: A second arc groove (322) matching a part of the first rib (51) is provided on the wall surface of at least one of the guide blocks (321) facing the guide groove.

14. The household appliance according to any one of claims 1 to 7, characterized in that: There are two groups of guide rail components, which are respectively arranged on the left and right sides of the shelf (2).

15. The household appliance according to any one of claims 1 to 7, characterized in that: The household appliance is a dishwasher or a disinfection cabinet.

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