A cleaning machine

Abstract

The utility model relates to a kind of cleaning machines, including box and bowl rack, box front side is provided with open mouth, bowl rack can be front and back telescopicly connected on the inside wall of box, further include the drive mechanism that can make bowl rack front and back telescopic, the drive mechanism includes: rack, be located on the outside wall of bowl rack and along the front and back direction of bowl rack extension, the tooth of rack is arranged downward;Gear, rotatably be located on the inside wall of box and be arranged close to open mouth, the top of gear is engaged with rack;Driving part, be located on the outside wall of box and output shaft pass through box side wall and be connected with gear.Using the above structure, bowl rack is not pulled out and returned by user artificially, convenient to use;The tooth of rack is arranged downward, and the gear that is engaged with transmission of rack is arranged at the open mouth of box, not only convenient to install and maintain, and compared with being located at the rear side of box, drive mechanism occupies small space, need not occupy the rear side mounting space of dishwasher, do not affect the need of the volume of dishwasher to be large.

Description

Technical Field

[0001] This utility model relates to the field of dishwasher technology, specifically to a cleaning machine for cleaning tableware, fruits and vegetables. Background Technology

[0002] As people's living standards continue to improve, dishwashers, as a type of kitchen appliance, are increasingly entering households.

[0003] Dishwashers typically use a dish rack to hold the dishes, and a spray arm sprays water to clean the dishes in the rack. For example, existing patent ZL 201720605459.3, "A Dishwasher," discloses a structure that includes an inner tub with a washing chamber and a dish rack disposed within the washing chamber. The side wall of the dish rack has a slider, and the side wall of the washing chamber is fitted with opposing rollers. The rollers have guide grooves formed circumferentially. The dishwasher also includes a track slidably connected between pairs of guide grooves, and the slider of the dish rack is slidably connected within the track. The track in the dishwasher guides the dish rack.

[0004] Most dishwashers currently on the market only allow customers to manually pull out and retract the dish racks. Improvements are mostly focused on smoothing the push-pull motion to minimize resistance. Manually pulling out and retracting the dish racks is very inconvenient, especially when customers are retrieving or placing dishes; they must first pull out the rack to do so, which is inconvenient.

[0005] Therefore, the current structure of the cleaning machine needs further improvement. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a washing machine that can automatically extend and retract the dish rack and is easy to use, in light of the current state of the technology.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0008] A washing machine includes a housing and a dish rack. The housing has an opening on its front side, and the dish rack is retractably connected to the inner wall of the housing. The machine also includes a drive mechanism for retracting the dish rack, the drive mechanism comprising:

[0009] A rack is provided on the outer wall of the bowl rack and extends along the front-to-back direction of the bowl rack, with the teeth of the rack facing downwards;

[0010] A gear, rotatably mounted on the inner wall of the housing and arranged near the opening, the top of the gear meshing with a rack; and

[0011] The drive unit is located on the outer side wall of the housing, and the output shaft passes through the side wall of the housing and is connected to the gear.

[0012] The above structure enables automatic extension and retraction of the dish rack, eliminating the need for manual pulling and retraction by the user, making it convenient to use. By arranging the teeth of the rack downwards and placing the gears that mesh with the rack at the opening of the housing, installation and maintenance are not only easier, but the drive mechanism of this invention also occupies less space compared to the rear of the housing, eliminating the need to occupy the rear installation space of the dishwasher and not affecting the requirement for a larger dishwasher capacity.

[0013] Preferably, a mounting bracket is provided on the inner side wall of the housing, close to the opening. The front side of the mounting bracket has a notch for the rack to pass through, and the rear end of the rack has a limiting block that engages with the periphery of the notch to prevent the rack from dislodging forward from the mounting bracket. This structure limits the pull-out distance of the dish rack after it is pulled forward out of the washing machine opening, controlling its extension distance and improving reliability.

[0014] Preferably, the mounting bracket includes a first plate arranged close to the inner wall of the housing, a second plate extending laterally from the first plate towards the bowl rack, and a third plate bent vertically from the first plate towards the bowl rack. The notch is formed between the second and third plates, and the limiting block cooperates with the rear edge of the second plate for limiting. This structure facilitates the formation of the notch at a suitable location and easily achieves the limiting relationship with the limiting block at the rear end of the rack.

[0015] Preferably, the second plate is located at the top edge of the first plate, and the third plate is located at the front edge of the first plate and below the second plate, with the notch formed between the lower surface of the second plate and the top edge of the third plate. This structure simplifies the mounting bracket, facilitates installation, and reduces the amount of installation space required.

[0016] Preferably, the first plate and the third plate together enclose a semi-enclosed space that surrounds the gear, and this semi-enclosed space is located below the notch. This structure can protect the gear to a certain extent and protect the meshing point between the gear and the rack.

[0017] Preferably, the mounting bracket and the side wall of the housing are provided with mounting holes for the bushing of the gear to pass through, and a rotating bearing is installed in the mounting hole. This structure reduces friction, makes rotation smoother, and prevents the bowl rack from jamming when there are too many dishes or excessive weight.

[0018] Preferably, the outer wall of the housing is provided with an assembly plate, on which a receiving hole is formed corresponding to the mounting hole. This receiving hole aligns with the mounting hole to accommodate the bushing of the transmission bearing and gear. This structure improves the installation strength between the housing sidewall and the gear mounting point, enhances installation compactness and reliability, further improves force transmission, and ensures that the cup holder remains smooth and unobstructed during extension and retraction.

[0019] To facilitate the installation of the drive component, the drive component is locked to the outer wall of the assembly plate, and the output shaft of the drive component is inserted into the outer end of the gear bushing.

[0020] Preferably, the inner wall of the rack is arranged close to the outer wall of the bowl rack, and the top edge of the rack is provided with an upwardly extending hanging arm, through which the rack is locked to the outer wall of the bowl rack. This structure reduces the space occupied by the rack on the side of the bowl rack, ensuring installation reliability while eliminating interference between the rack and the original guide rails and rollers on the side of the bowl rack.

[0021] Preferably, the racks and gears are provided in two sets and symmetrically arranged on both sides of the bowl rack. The two gears share a single driving component and are connected by a transmission rod, which is laterally positioned at the opening and within the opening. With this structure, racks and gears are equally installed on both sides of the bowl rack. Except for the driving component, all other components are mirror images of the bowl rack and connected in the middle by the transmission rod. For ease of driving, the connecting ports of the transmission rod and gears can be hexagonal, inserted from one end and then secured with retaining rings or other limiting components to prevent them from disengaging. When the driving component drives one gear on one side, the driven gear rotates, thus synchronously moving the racks forward and backward on both sides, maintaining the synchronicity of the driving on both sides of the bowl rack and minimizing the risk of the bowl rack jamming.

[0022] Compared with the prior art, the advantages of this utility model are as follows: This utility model is equipped with a drive mechanism on the side of the cabinet and the dish rack that enables the dish rack to extend and retract automatically, realizing the automatic extension and retraction of the dish rack without the user having to manually pull out and retract it, making it convenient to use; This utility model arranges the teeth of the rack downwards and places the gear that meshes with the rack at the opening of the cabinet, which not only facilitates installation and maintenance, but also occupies less space than the drive mechanism located on the rear of the cabinet, without occupying the installation space at the rear of the dishwasher, and does not affect the need for a larger dishwasher volume. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0024] Figure 2 for Figure 1 A diagram from another angle;

[0025] Figure 3 for Figure 2 Enlarged view of section A;

[0026] Figure 4 for Figure 3 Sectional view of the corresponding part;

[0027] Figure 5 This is a diagram showing the fit between the bowl rack and the drive mechanism in an embodiment of this utility model.

[0028] Figure 6 for Figure 5 Another perspective diagram. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] like Figure 1 As shown in Figure 6, the washing machine of this embodiment includes a housing 1 and a dish rack 2. The housing 1 has an opening 11 on its front side. The dish rack 2 is retractably connected to the inner wall of the housing 1. Rollers 01 are mounted on the outer wall of the dish rack 2, and a slide rail 02 is mounted on the inner wall of the housing 1. The dish rack 2 is guided by rollers that clamp onto both sides of the slide rail. The dish rack 2 can be pulled out of the housing 1 through the opening 11 or retracted back into the housing 1 through the opening 11.

[0031] This embodiment also includes a drive mechanism 3 that enables the bowl rack 2 to extend and retract forward and backward. The drive mechanism 3 includes:

[0032] A rack 31 is provided on the outer wall of the bowl rack 2 and extends along the front-back direction of the bowl rack 2, with the teeth 311 of the rack 31 facing downwards;

[0033] Gear 32 is rotatably mounted on the inner wall of housing 1 and arranged near the opening 11; the top of gear 32 meshes with rack 31; and

[0034] The drive unit 33 is located on the outer side wall of the housing 1 and the output shaft 331 passes through the side wall of the housing 1 and is connected to the gear 32.

[0035] The above structure enables the automatic extension and retraction of the dish rack 2, eliminating the need for the user to manually pull out and retract it, making it convenient to use. The teeth of the rack 31 are arranged downwards, and the gear 32 that meshes with the rack 31 is located at the opening 11 of the housing 1. This not only facilitates installation and maintenance, but also, compared to the drive mechanism 3 located on the rear side of the housing 1, it occupies less space and does not require occupying the installation space at the rear of the dishwasher, thus not affecting the requirement to maximize the capacity of the dishwasher.

[0036] A mounting bracket 4 is provided on the inner wall of the housing 1, near the opening 11. The front side of the mounting bracket 4 has a notch 40 for the rack 31 to pass through. The rear end of the rack 31 is provided with a limiting block 313 that can limit the rack 31 to the outside of the notch 40, thereby preventing the rack 31 from coming out of the mounting bracket 4. This structure is designed to limit the rack 2 after it is pulled forward out of the opening 11 of the washing machine, control the pulling distance of the rack 2, and improve the reliability of use.

[0037] The mounting bracket 4 includes a first plate 41 arranged close to the inner wall of the housing 1, a second plate 42 extending laterally from the first plate 41 towards the bowl rack 2, and a third plate 43 bent vertically from the first plate 41 towards the bowl rack 2. A notch 40 is formed between the second plate 42 and the third plate 43, and a limiting block 313 engages with the rear edge of the second plate 42 for positioning. This structure facilitates the formation of the notch 40 at a suitable location and easily achieves the positioning relationship with the limiting block 313 at the rear end of the rack 31.

[0038] The second plate 42 is located at the top edge of the first plate 41, and the third plate 43 is located at the front edge of the first plate 41 and below the second plate 42. A notch 40 is formed between the lower surface of the second plate 42 and the top edge of the third plate 43. This structure simplifies the structure of the mounting bracket 4, facilitates installation, and reduces the installation space required.

[0039] The first plate 41 and the third plate 43 together enclose a semi-enclosed space that surrounds the gear 32. This semi-enclosed space is located below the notch 40. This structure can protect the gear 32 to a certain extent and protect the meshing point between the gear 32 and the rack 31.

[0040] Mounting holes 100 are provided on the side walls of the mounting bracket 4 and the housing 1, through which the bushing of the gear 32 passes. A rotating bearing 5 is installed in the mounting hole 100. The above structure can reduce friction, make the rotation smoother, and avoid the problem of the bowl rack 2 getting stuck when there are too many tableware or too much weight.

[0041] An assembly plate 6 is provided on the outer wall of the housing 1. A receiving hole 61 is formed on the assembly plate 6 corresponding to the mounting hole 100. The receiving hole 61 is aligned with the mounting hole 100 to accommodate the bushing 321 of the transmission bearing and gear 32. The above structure is adopted to improve the installation strength of the side wall of the housing 1 and the mounting point of the gear 32, improve the installation compactness and reliability, further improve the force transmission effect, and ensure that the cup holder 2 remains smooth and unobstructed during the pulling out and retracting process.

[0042] In this embodiment, the driving component 33 is a motor. To facilitate the installation of the driving component 33, the driving component 33 is locked to the outer side wall of the mounting plate 6. The output shaft 331 of the driving component 33 is inserted and connected to the outer end of the bushing 321 of the gear 32.

[0043] The inner wall of the rack 31 is arranged close to the outer wall of the bowl rack 2. An upwardly extending hanging arm 312 is provided at the top edge of the rack 31, through which the rack 31 is locked to the outer wall of the bowl rack 2. This structure reduces the space occupied by the rack 31 on the side of the bowl rack 2, ensuring installation reliability while eliminating interference between the rack 31 and the existing guide rails and rollers on the side of the bowl rack 2.

[0044] Two sets of racks 31 and gears 32 are symmetrically arranged on both sides of the bowl rack 2. The two gears 32 share a single driving element 33 and are connected by a transmission rod 34, which is laterally positioned within the opening 11. With this structure, racks 31 and gears 32 are equally installed on both sides of the bowl rack 2. Except for the driving element 33, all other components are mirror images of the bowl rack 2, connected by the transmission rod. For ease of operation, the connecting ports of the transmission rod and gears 32 can be hexagonal, inserted from one end and then secured with retaining rings or other limiting components to prevent disengagement. When the driving element 33 drives one gear 32 on one side, the driven gear 32 rotates, thus synchronously moving the racks 31 forward and backward, maintaining the synchronicity of the drive on both sides of the bowl rack 2 and minimizing the risk of jamming.

[0045] In this embodiment, a drive mechanism 3 is provided on the side of the cabinet 1 and the dish rack 2 to enable the dish rack 2 to extend and retract automatically, realizing the automatic extension and retraction of the dish rack 2 without the need for the user to manually pull out and retract it, making it convenient to use. In this embodiment, the teeth of the rack 31 are arranged downwards, and the gear 32 that meshes with the rack 31 is set at the opening 11 of the cabinet 1. This not only facilitates installation and maintenance, but also, compared to the drive mechanism 3 located on the rear side of the cabinet 1, the drive mechanism 3 of this embodiment occupies less space and does not occupy the installation space at the rear of the dishwasher, thus not affecting the requirement of maximizing the capacity of the dishwasher.

[0046] In the specification and claims of this utility model, terms indicating direction, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," and "bottom," are used to describe various exemplary structural parts and elements of this utility model. However, the use of these terms is merely for the purpose of explanation and is based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in this utility model can be arranged in different orientations, these terms indicating direction are for illustrative purposes only 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 washing machine, comprising a housing (1) and a dish rack (2), wherein the housing (1) has an opening (11) on its front side, and the dish rack (2) is retractably connected to the inner wall of the housing (1), characterized in that: It also includes a drive mechanism (3) that enables the bowl rack (2) to extend and retract forward and backward, the drive mechanism (3) including A rack (31) is provided on the outer side wall of the bowl rack (2) and extends along the front-back direction of the bowl rack (2), with the teeth of the rack (31) facing downwards; A gear (32) is rotatably disposed on the inner wall of the housing (1) and arranged near the opening (11), the top of the gear (32) meshing with a rack (31); and The drive unit (33) is located on the outside of the housing (1) and its output shaft is connected to the gear (32).

2. The cleaning machine according to claim 1, characterized in that: The inner wall of the housing (1) is provided with a mounting bracket (4) arranged near the opening (11). The front side of the mounting bracket (4) is provided with a notch (40) for the rack (31) to pass through. The rear end of the rack (31) is provided with a limiting block (313) that can limit the rack (31) to the outside of the notch (40) to prevent the rack (31) from coming out of the mounting bracket (4).

3. The cleaning machine according to claim 2, characterized in that: The mounting bracket (4) includes a first plate (41) arranged close to the inner wall of the box (1), a second plate (42) extending laterally from the first plate (41) toward the bowl rack (2), and a third plate (43) bent vertically from the first plate (41) toward the bowl rack (2). The notch (40) is formed between the second plate (42) and the third plate (43). The limiting block (313) cooperates with the rear edge of the second plate (42) for limiting.

4. The cleaning machine according to claim 3, characterized in that: The second plate (42) is located at the top edge of the first plate (41), the third plate (43) is located at the front edge of the first plate (41) and below the second plate (42), and the notch (40) is formed between the lower surface of the second plate (42) and the top edge of the third plate (43).

5. The cleaning machine according to claim 3, characterized in that: The first plate (41) and the third plate (43) together enclose a semi-enclosed space that can surround the gear (32), and the semi-enclosed space is located below the notch (40).

6. The cleaning machine according to any one of claims 2 to 5, characterized in that: The mounting bracket (4) and the side wall of the housing (1) are respectively provided with mounting holes (100) through which the bushing of the gear (32) passes, and a rotating bearing (5) is provided in the mounting hole (100).

7. The cleaning machine according to claim 6, characterized in that: The outer wall of the housing (1) is provided with an assembly plate (6), and a receiving hole is formed on the assembly plate (6) corresponding to the mounting hole (100). The receiving hole is connected to the mounting hole (100) so as to jointly accommodate the bushing (321) of the transmission bearing and gear (32).

8. The cleaning machine according to claim 7, characterized in that: The drive unit (33) is locked to the outer wall of the assembly plate (6), and the output shaft of the drive unit (33) is inserted into the outer end of the bushing of the gear (32).

9. The cleaning machine according to any one of claims 1 to 5, characterized in that: The inner sidewall of the rack (31) is arranged close to the outer sidewall of the bowl rack (2), and the top edge of the rack (31) is provided with an upwardly extending hanging arm. The rack (31) is locked to the outer sidewall of the bowl rack (2) through the hanging arm.

10. The cleaning machine according to any one of claims 1 to 5, characterized in that: The rack (31) and gear (32) are provided in two sets and are symmetrically arranged on both sides of the bowl frame (2). The two gears (32) share a driving member (33) and are connected by a transmission rod. The transmission rod is horizontally located at the opening (11) and is located inside the opening (11).

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