A dishwasher adjustable lift shelf

By designing an adjustable and height-adjustable shelf system, the problem of fixed shelf height in dishwashers has been solved, enabling effective accommodation and support for tableware of different heights and improving the ease of use of the dishwasher.

CN224369815UActive Publication Date: 2026-06-19HANGZHOU YUJING INTELLIGENT TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU YUJING INTELLIGENT TECHNOLOGY CO LTD
Filing Date
2025-07-01
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing dishwashers have fixed shelf heights, making it difficult to effectively accommodate cookware of different heights, resulting in cleaning difficulties.

Method used

An adjustable height shelf system was designed. Through the combination of multiple locking parts and positioning sleeve parts, the upper shelf can be lowered multiple times to adapt to the needs of tableware of different heights, and the connection strength is enhanced by elastic washers.

Benefits of technology

It effectively accommodates tableware of different heights, enhances the dishwasher's load-bearing capacity, prevents the racks from wobbling, and improves ease of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the field of dishwasher shelves, specifically an adjustable lifting shelf for dishwashers. It includes a dishwasher with multiple pull-out slides on its inner wall. A lower shelf is fixedly connected to the lower pull-out slide, and a fixed track is fixedly connected to the upper pull-out slide. A positioning sleeve is slidably connected to the inner wall of the fixed track, and a first locking member is slidably connected to the track. A second locking member is located below the first locking member, and a third locking member is located below the second locking member. The annular portion of the positioning sleeve engages with the upper shelf. The layered arrangement of the first, second, and third locking members allows the upper shelf to descend multiple times, accommodating items of different heights to be washed, thereby increasing the washing capacity.
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Description

Technical Field

[0001] This utility model relates to the field of dishwasher shelves, specifically an adjustable height shelf for dishwashers. Background Technology

[0002] The dishwasher rack is an important component inside the dishwasher used to place tableware. Below is a detailed introduction to dishwasher racks. Racks typically consist of multiple parallel horizontal bars and several vertical bars, forming individual placement areas. The horizontal bars support larger tableware such as plates and bowls, while the vertical bars prevent tableware from sliding or tipping over during dishwasher operation. Racks are generally made of stainless steel, which has good corrosion resistance and strength, allowing for long-term use in the humid environment inside the dishwasher without easily rusting. Some dishwasher racks also use plastic components, such as parts that come into direct contact with tableware, to prevent scratching the tableware surface.

[0003] Dishwashers have double-layer shelves to increase capacity. However, when washing some cookware, the fixed height of the shelves makes it difficult to accommodate the cookware, resulting in the inability to wash it. Therefore, an adjustable height shelf for dishwashers is proposed to address this problem. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model proposes an adjustable lift rack for dishwashers.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an adjustable lifting shelf for a dishwasher, including a dishwasher, the inner wall of which is provided with a plurality of pull-out slides, the lower pull-out slide of the dishwasher is fixedly connected to a lower shelf, the upper pull-out slide of the dishwasher is fixedly connected to a fixed track, the inner wall of the fixed track is slidably connected to a positioning sleeve, the track of the fixed track is slidably connected to a first locking member, the lower part of the first locking member is provided with a second locking member, the lower part of the second locking member is provided with a third locking member, and the annular part of the positioning sleeve is engaged with an upper shelf;

[0006] Preferably, the positioning sleeve includes: a protrusion and an elastic washer, the side of the positioning sleeve is fixedly connected to the end of the protrusion, and the end of the elastic washer is fitted into the inner wall of the ring of the positioning sleeve.

[0007] Preferably, the fixed track component includes: a fitting track and an extension slide rail, wherein the plate of the fixed track component is fixedly connected to the end of the fitting track, and the lower part of the fitting track is fixedly connected to the end of the extension slide rail;

[0008] Preferably, the first locking component includes: a sliding post, a spring, and a fixing ring. One end of the first locking component is fixedly connected to the frame of the fixed track component, and the other end of the first locking component is slidably connected to the post of the sliding post. The post of the sliding post is sleeved with the spring, and the end of the spring is fixedly connected to the ring of the fixing ring. The post of the sliding post is slidably connected to the frame of the fixed track component.

[0009] Preferably, the second locking component includes: a second sliding post, a second spring, and a second fixing ring. One end of the second locking component is fixedly connected to the frame of the fixed track component, and the other end of the second locking component is slidably connected to the post of the second sliding post. The post of the second sliding post is sleeved with the second spring, and the end of the second spring is fixedly connected to the ring of the second fixing ring. The post of the second sliding post is slidably connected to the frame of the fixed track component.

[0010] Preferably, the third locking component includes: a sliding post three, a spring three, and a fixing ring three. One end of the third locking component is fixedly connected to the frame of the fixed track component, and the other end of the third locking component is slidably connected to the post of the sliding post three. The post of the sliding post three is sleeved with the spring three, and the end of the spring three is fixedly connected to the ring of the fixing ring three. The post of the sliding post three is slidably connected to the frame of the fixed track component.

[0011] The advantages of this utility model are:

[0012] 1. This utility model allows the upper shelf to descend multiple times through the layered arrangement of the first, second, and third locking components, thereby accommodating items to be washed at different heights and increasing the washing load-bearing capacity.

[0013] 2. The elastic washer provided in the positioning sleeve ring of this utility model can enhance the connection strength with the side column of the upper shelf, and prevent the side column of the upper shelf from shaking when it is inserted into the ring of the positioning sleeve. Attached Figure Description

[0014] 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 these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention installed inside a dishwasher;

[0016] Figure 2 This is a schematic diagram of the front three-dimensional structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the positioning sleeve structure of this utility model;

[0018] Figure 4 This is a partial structural schematic diagram of the present invention;

[0019] Figure 5 This is a cross-sectional schematic diagram of a partial structure of this utility model.

[0020] In the picture:

[0021] 1. Dishwasher; 2. Lower shelf; 3. Upper shelf; 11. Pull-out slide; 7. Positioning sleeve; 71. Protrusion; 72. Elastic washer; 5. Fixed track; 51. Fitting track; 52. Extension slide rail; 8. First locking component; 81. Sliding post one; 82. Spring one; 83. Fixing ring one; 9. Second locking component; 91. Sliding post two; 92. Spring two; 93. Fixing ring two; 4. Third locking component; 41. Sliding post three; 42. Spring three; 43. Fixing ring three. Detailed Implementation

[0022] 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.

[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0024] This application discloses an adjustable lifting shelf for a dishwasher, including a dishwasher 1. The inner wall of the dishwasher 1 is provided with a plurality of pull-out slides 11. The lower pull-out slide 11 of the dishwasher 1 is fixedly connected to a lower shelf 2. The upper pull-out slide 11 of the dishwasher 1 is fixedly connected to a fixed track 5. The inner wall of the fixed track 5 is slidably connected to a positioning sleeve 7. The track of the fixed track 5 is slidably connected to a first locking member 8. The lower part of the first locking member 8 is provided with a second locking member 9. The lower part of the second locking member 9 is provided with a third locking member 4. The annular part of the positioning sleeve 7 is engaged with an upper shelf 3.

[0025] The positioning sleeve 7 includes: a protruding block 71 and an elastic washer 72. The side of the positioning sleeve 7 is fixedly connected to the end of the protruding block 71, and the end of the elastic washer 72 is fitted into the inner wall of the ring of the positioning sleeve 7.

[0026] The fixed track component 5 includes: a fitting track 51 and an extension slide rail 52. The plate of the fixed track component 5 is fixedly connected to the end of the fitting track 51, and the lower part of the fitting track 51 is fixedly connected to the end of the extension slide rail 52.

[0027] The first locking component 8 includes: a sliding post 81, a spring 82, and a fixing ring 83. One end of the first locking component 8 is fixedly connected to the frame of the fixing track component 5, and the other end of the first locking component 8 is slidably connected to the post of the sliding post 81. The post of the sliding post 81 is sleeved with the spring 82, and the end of the spring 82 is fixedly connected to the ring of the fixing ring 83. The post of the sliding post 81 is slidably connected to the frame of the fixing track component 5.

[0028] The second locking component 9 includes: a second sliding post 91, a second spring 92, and a second fixing ring 93. One end of the second locking component 9 is fixedly connected to the frame of the fixed track component 5, and the other end of the second locking component 9 is slidably connected to the post of the second sliding post 91. The post of the second sliding post 91 is sleeved with the second spring 92, and the end of the second spring 92 is fixedly connected to the ring of the second fixing ring 93. The post of the second sliding post 91 is slidably connected to the frame of the fixed track component 5.

[0029] The third locking component 4 includes: a sliding column 41, a spring 42, and a fixing ring 43. One end of the third locking component 4 is fixedly connected to the frame of the fixing track component 5, and the other end of the third locking component 4 is slidably connected to the column of the sliding column 41. The column of the sliding column 41 is sleeved with the spring 42, and the end of the spring 42 is fixedly connected to the ring of the fixing ring 43. The column of the sliding column 41 is slidably connected to the frame of the fixing track component 5.

[0030] Working principle: When it is necessary to wash the cookware, first pull the end of the sliding column 81. This will cause the sliding column 81 to drive the fixing ring 83 to compress the spring 82. At the same time, the column of the sliding column 81 extending into the extension slide rail 52 will also retract into the cylinder of the first locking member 8. Thus, under the restriction of the extension slide rail 52, the positioning sleeve 7 will drive the upper shelf 3 to move downward by gravity until the frame of the positioning sleeve 7 is blocked by the first locking member 8. The upper shelf 3 continues to move downwards only when blocked by the lower sliding column 91. At this point, the cookware can be placed in the upper shelf 3. When there is still a certain distance between the cookware placed in the upper shelf 3 and the top of the dishwasher 1, it is now in place. When the support part of the upper shelf 3 and the top of the dishwasher 1 cannot accommodate the cookware, the sliding column 91 needs to be pulled. This causes the sliding column 91 to drive the fixing ring 93 to compress the spring 92. At the same time, the column of the sliding column 91 extending into the extension rail 52 will also retract into the second locking member 9. In this way, the upper shelf 3 continues to move downwards, driven by the positioning sleeve member 7. At this point, you can try again to see if the upper shelf 3 can hold the pot. If it still cannot, you need to pull the sliding column 3 41, so that the sliding column 3 41 drives the fixing ring 3 43 to squeeze the spring 3 42. The column of the sliding column 3 41 extending on the extension slide rail 52 will retract into the third locking part 4. At this time, the positioning sleeve 7 drives the upper shelf 3 to continue to move down. At this point, the downward movement of the upper shelf 3 reaches its maximum. Through the layered arrangement of the first locking part 8, the second locking part 9 and the third locking part 4, the upper shelf 3 can be lowered multiple times to accommodate items to be washed at different heights, thereby increasing the washing load capacity.

[0031] The protruding block 71 provided on the frame of the positioning sleeve 7 allows the positioning sleeve 7 to quickly engage with the extension slide rail 52 after it is pushed into the engagement rail 51 laterally. This enables the positioning sleeve 7 to move longitudinally. At the same time, the elastic washer 72 provided on the ring of the positioning sleeve 7 can enhance the connection strength with the side column of the upper shelf 3, preventing the side column of the upper shelf 3 from shaking when it is inserted into the ring of the positioning sleeve 7.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An adjustable lift rack for a dishwasher, comprising a dishwasher (1), characterized in that: The inner wall of the dishwasher (1) is provided with a plurality of pull-out slides (11). The pull-out slides (11) at the bottom of the dishwasher (1) are fixedly connected to a lower shelf (2). The pull-out slides (11) at the top of the dishwasher (1) are fixedly connected to a fixed track (5). The inner wall of the fixed track (5) is slidably connected to a positioning sleeve (7). The track of the fixed track (5) is slidably connected to a first locking piece (8). The lower part of the first locking piece (8) is provided with a second locking piece (9). The lower part of the second locking piece (9) is provided with a third locking piece (4). The ring part of the positioning sleeve (7) is engaged with an upper shelf (3).

2. The adjustable lift shelf for a dishwasher according to claim 1, characterized in that: The positioning sleeve (7) includes: a protrusion (71) and an elastic washer (72). The side of the positioning sleeve (7) is fixedly connected to the end of the protrusion (71), and the end of the elastic washer (72) is fitted into the inner wall of the ring of the positioning sleeve (7).

3. The adjustable lift rack for a dishwasher according to claim 1, characterized in that: The fixed track component (5) includes: a fitting track (51) and an extension slide rail (52). The plate of the fixed track component (5) is fixedly connected to the end of the fitting track (51), and the lower part of the fitting track (51) is fixedly connected to the end of the extension slide rail (52).

4. The adjustable lift rack for a dishwasher according to claim 1, characterized in that: The first locking component (8) includes: a sliding column (81), a spring (82), and a fixing ring (83). One end of the first locking component (8) is fixedly connected to the frame of the fixing track component (5), and the other end of the first locking component (8) is slidably connected to the column of the sliding column (81). The column of the sliding column (81) is sleeved with the spring (82), and the end of the spring (82) is fixedly connected to the ring of the fixing ring (83). The column of the sliding column (81) is slidably connected to the frame of the fixing track component (5).

5. The adjustable lift shelf for a dishwasher according to claim 1, characterized in that: The second locking component (9) includes: a second sliding column (91), a second spring (92), and a second fixing ring (93). One end of the second locking component (9) is fixedly connected to the frame of the fixed track component (5), and the other end of the second locking component (9) is slidably connected to the column of the second sliding column (91). The column of the second sliding column (91) is sleeved with the second spring (92), and the end of the second spring (92) is fixedly connected to the ring of the second fixing ring (93). The column of the second sliding column (91) is slidably connected to the frame of the fixed track component (5).

6. The adjustable lift shelf for a dishwasher according to claim 1, characterized in that: The third locking component (4) includes: a sliding column (41), a spring (42), and a fixing ring (43). One end of the third locking component (4) is fixedly connected to the frame of the fixed track component (5), and the other end of the third locking component (4) is slidably connected to the column of the sliding column (41). The column of the sliding column (41) is sleeved with the spring (42), and the end of the spring (42) is fixedly connected to the ring of the fixing ring (43). The column of the sliding column (41) is slidably connected to the frame of the fixed track component (5).