Top tray push-pull structure of dish washing machine

Abstract

The utility model discloses a dish-washing machine top tray push-pull structure which comprises a tray and two supports, the two supports are arranged on the left side and the right side of the tray respectively, each support comprises a lower supporting rail and an upper supporting rail which are sequentially arranged from bottom to top, two lower idler wheels and two upper idler wheels are arranged on the side portion of the tray, the two lower idler wheels are arranged adjacently, and the two upper idler wheels are arranged adjacently. The two lower rollers are arranged between the lower supporting rail and the upper supporting rail and are close to the rear end of the tray, the two upper rollers are close to the rear end and the middle of the tray respectively, the two lower rollers are arranged between the lower supporting rail and the upper supporting rail and are in rolling fit with the lower supporting rail, and the two upper rollers are arranged at the top of the upper supporting rail. And the two upper rollers are in rolling fit with the upper support rail. The push-pull mechanism has the advantages of being simple in structure, long in push-pull stroke, capable of achieving reliable limiting, convenient to take down the tray and the like.

Description

Technical Field

[0001] The utility model relates to a dishwasher, in particular to a push-pull structure of a top tray of a dishwasher. Background Art

[0002] Generally, a push-pull tray is provided in the inner tank of a dishwasher. For related structures, please refer to the Chinese patent publication document with the publication number CN219680562U and the name "Bowl basket assembly for a cleaning machine and a cleaning machine", which records: "The bowl basket assembly includes a first bowl basket frame; a second bowl basket frame located below the first bowl basket frame; a guide rail provided beside the first bowl basket frame, and the guide rail extends in the front-rear direction; a sliding part provided on the first bowl basket frame, and the sliding part is connected to or in contact with the top of the guide rail, and a relative displacement can be generated between the sliding part and the guide rail; a connecting part provided on the second bowl basket frame, and the connecting part is connected to the lower part of the guide rail, and a relative displacement can also be generated between the connecting part and the guide rail"; such a structure requires at least two slide rails to cooperate, and the overall structure is relatively complex. Moreover, the sliding mode combining the guide rail and two rollers is adopted, and its sliding stroke does not exceed half of the guide rail, so there is a technical problem of limited sliding stroke, which is not convenient for taking and placing tableware. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a push-pull structure of a top tray of a dishwasher with a simple structure, a longer push-pull stroke, reliable limit, and convenient removal of the tray, aiming at the deficiencies of the prior art.

[0004] To solve the above technical problem, the utility model adopts the following technical solutions.

[0005] A push-pull structure of a top tray of a dishwasher includes a tray and two brackets. The two brackets are respectively arranged on the left and right sides of the tray. Each bracket includes a lower track and an upper track arranged in sequence from bottom to top. Two lower rollers and two upper rollers are provided on the side of the tray. The two lower rollers are arranged adjacent to each other, and both are close to the rear end of the tray. The two upper rollers are respectively close to the rear end and the middle of the tray. The two lower rollers are both arranged between the lower track and the upper track, and the lower rollers are in rolling cooperation with the lower track. The two upper rollers are both arranged on the top of the upper track, and the two upper rollers are in rolling cooperation with the upper track.

[0006] Preferably, an upper roller close to the rear end of the tray is vertically aligned with a lower roller far from the rear end of the tray.

[0007] Preferably, the front end of the lower track forms an inclined limiting part bent obliquely upward.

[0008] Preferably, the brackets are evenly distributed with hollow holes.

[0009] Preferably, a top bent plate that bends outward is formed at the top of the bracket, and screw holes are provided on the top bent plate.

[0010] Preferably, a plurality of drain holes are provided on the lower support rail.

[0011] Preferably, a rear limiting plate that bends upward is formed at the rear end of the lower support rail.

[0012] Preferably, the rolling stroke of the upper roller along the upper support rail ≤ 0.5 × the length of the upper support rail.

[0013] Preferably, a wrapping edge portion that bends upward is formed at the edge of the lower support rail close to the tray side.

[0014] In the push-pull structure of the top tray of the dishwasher disclosed by the present utility model, both brackets are fixed on the inner wall of the dishwasher inner tank. Both lower rollers are rotatably arranged between the lower support rail and the upper support rail. At the same time, both upper rollers are in rolling cooperation with the upper support rail. Therefore, when pushing and pulling the tray, it can slide along the two brackets. Only one bracket is needed to support the upper and lower groups of rollers, and the overall structure is more simplified, which can not only ensure the reliable operation of the push-pull structure, but also save the application cost. Description of the Drawings

[0015] Figure 1 It is a structural diagram in the dishwasher inner tank;

[0016] Figure 2 It is a comparison view of the push-pull change state of the push-pull structure of the top tray of the dishwasher of the present utility model;

[0017] Figure 3 It is a three-dimensional view of the push-pull structure of the top tray of the dishwasher of the present utility model;

[0018] Figure 4 It is a partial enlarged view of the connection between the tray and the bracket;

[0019] Figure 5 It is a schematic diagram of the flipping direction when the tray is removed;

[0020] Figure 6 It is a three-dimensional view of the push-pull structure of the top tray of the dishwasher under a replacement method of the present utility model; Detailed Embodiments

[0021] The present utility model will be described in more detail below with reference to the drawings and embodiments.

[0022] The present utility model discloses a push-pull structure of a top tray of a dishwasher, in combination with Figures 1 to 5As shown in the figure, it includes a tray 1 and two brackets 2. The two brackets 2 are respectively arranged on the left and right sides of the tray 1. The bracket 2 includes a lower supporting rail 20 and an upper supporting rail 21 which are arranged in sequence from bottom to top. Two lower rollers 10 and two upper rollers 11 are arranged on the side of the tray 1. The two lower rollers 10 are arranged adjacent to each other, and both of the two lower rollers 10 are close to the rear end of the tray 1. The two upper rollers 11 are respectively close to the rear end and the middle of the tray 1. The two lower rollers 10 are both arranged between the lower supporting rail 20 and the upper supporting rail 21, and the lower rollers 10 are in rolling cooperation with the lower supporting rail 20. The two upper rollers 11 are both arranged on the top of the upper supporting rail 21, and the two upper rollers 11 are in rolling cooperation with the upper supporting rail 21.

[0023] In the above structure, the two brackets 2 are both fixed on the inner wall of the inner container 100 of the dishwasher. The two lower rollers 10 are both arranged to roll between the lower supporting rail 20 and the upper supporting rail 21. At the same time, the two upper rollers 11 are in rolling cooperation with the upper supporting rail 21. Therefore, when the tray 1 is pushed or pulled, it can slide along the two brackets 2. Only one bracket 2 is needed to support the upper and lower groups of rollers, and the overall structure is more simplified. It can not only ensure the reliable operation of the pushing and pulling structure, but also save the application cost.

[0024] Combined with Figure 3 and Figure 4 As shown in the figure, in this embodiment, an upper roller 11 close to the rear end of the tray 1 is vertically aligned with a lower roller 10 far from the rear end of the tray 1. Based on the above structure, when the tray 1 is pulled out beyond the two brackets 2, the front one of the two lower rollers 10 clamps the upper supporting rail 21 and is in rolling cooperation with the aligned upper roller 11. The rear one of the two lower rollers 10 can play a role of stable support, that is, the rear lower roller 10 limits the flipping of the tray 1. Even when the tray 1 is pulled out to the state shown in the bottom view in Figure 2 , it can still ensure that the tray 1 is flatly restricted between the two brackets 2, thus having stronger reliability and making the pushing and pulling stroke of the tray 1 longer. In practical applications, the rolling stroke of the upper roller 11 along the upper supporting rail 21 ≤ 0.5 × the length of the upper supporting rail 21.

[0025] As a preferred structure, an inclined limiting portion 22 bent obliquely upward is formed at the front end of the lower supporting rail 20. Among them, the inclined limiting portion 22 mainly plays a role of front-end limiting for the lower roller 10. At the same time, based on the inclined characteristic of the inclined limiting portion 22, please refer to Figure 5 As shown in the figure, when the tray 1 needs to be removed, only pull the tray 1 out to the outermost end, and then turn the tray 1 upward, and the tray 1 can be removed from between the two brackets 2.

[0026] In this embodiment, combined with Figure 2 andFigure 3 As shown, the bracket 2 is evenly provided with hollow holes 23. Among them, the function of the hollow holes 23 is to improve the air circulation ability, which helps the dishwasher perform the drying task.

[0027] Please refer to Figure 3 , a top bent plate 24 that bends outward is formed at the top of the bracket 2, and screw holes 25 are formed in the top bent plate 24. Among them, the top bent plate 24 can be fixed to the top of the inner container 100 by screws passing through the screw holes 25. However, this is only a preferred application mode of the present invention and is not used to limit the protection scope of the present invention. In actual application, the matching situation with the inner container 100 can also be considered, and the installation position of the bracket 2 can be reasonably set. In addition, it can also be as Figure 6 shown, without setting the top bent plate 24 and using other methods such as side fixing.

[0028] To facilitate the drainage of the lower track 20, in this embodiment, a plurality of drainage holes are formed in the lower track 20.

[0029] This embodiment also has the function of rear-end limiting for the lower roller 10. Specifically, a rear limiting plate that bends upward is formed at the rear end of the lower track 20.

[0030] In order to play a role in lateral limiting for the lower roller 10, in the embodiment, a wrapping edge portion 26 that bends upward is formed at the edge of the lower track 20 close to the tray 1. Based on the above structure, the lower roller 10 is restricted between the wrapping edge portion 26 and the main body of the bracket 2, thereby ensuring the reliable rolling of the lower roller 10.

[0031] The above is only a preferred embodiment of the present invention and is not used to limit the present invention. Any modifications, equivalent replacements, or improvements made within the technical scope of the present invention shall be included within the protection scope of the present invention.

Claims

1. A push-pull structure for a top tray of a dishwasher, characterized in that: The invention comprises a tray (1) and two brackets (2), wherein the two brackets (2) are respectively arranged on the left and right sides of the tray (1), and the bracket (2) comprises a lower support rail (20) and an upper support rail (21) which are arranged in sequence from bottom to top. The side of the tray (1) is provided with two lower rollers (10) and two upper rollers (11), wherein the two lower rollers (10) are arranged adjacent to each other and the two lower rollers (10) are both close to the rear end of the tray (1), and the two upper rollers (11) are respectively close to the rear end and the middle of the tray (1), and the two lower rollers (10) are both arranged between the lower support rail (20) and the upper support rail (21), and the lower rollers (10) are in rolling cooperation with the lower support rail (20), and the two upper rollers (11) are both arranged at the top of the upper support rail (21), and the two upper rollers (11) are in rolling cooperation with the upper support rail (21).

2. The push-pull structure of the top tray of the dishwasher according to claim 1, characterized in that: An upper roller (11) close to the rear end of the tray (1) and a lower roller (10) far from the rear end of the tray (1) are aligned vertically.

3. The push-pull structure of the top tray of the dishwasher according to claim 1, characterized in that: The front end of the lower support rail (20) is formed with an oblique limiting portion (22) bent obliquely upward.

4. The push-pull structure of the top tray of the dishwasher according to claim 1, characterized in that: The bracket (2) is evenly distributed with hollow holes (23).

5. The push-pull structure of the top tray of the dishwasher according to claim 1, characterized in that: A top bent plate (24) bent outward is formed at the top of the bracket (2), and a screw hole (25) is provided on the top bent plate (24).

6. The push-pull structure of the top tray of the dishwasher according to claim 1, characterized in that: The lower support rail (20) is provided with a plurality of drainage holes.

7. The push-pull structure of the top tray of the dishwasher according to claim 1, characterized in that: The rear end of the lower support rail (20) is formed with a rear limit plate bent upward.

8. The push-pull structure of the top tray of the dishwasher according to claim 1, characterized in that: The rolling stroke of the upper roller (11) along the upper support rail (21) is ≤ the length of the upper support rail (21)×0.

5.

9. The push-pull structure of the top tray of the dishwasher according to claim 1, characterized in that: An edge of the lower support rail (20) close to one side of the tray (1) is formed with an upwardly bent edging portion (26).

Images