A fruit and vegetable cleaning machine

Abstract

The utility model relates to a kind of fruit and vegetable cleaning machine, including box, the box bottom is provided with the concave backwater cavity, the backwater cavity is provided with rotatable impeller, the impeller includes first water pumping sleeve, second water pumping sleeve and blade, the diameter of the first water pumping sleeve gradually decreases from bottom to top, the diameter of the second water pumping sleeve gradually decreases from bottom to top and is arranged on the first water pumping sleeve, the at least partial inner surface of the first water pumping sleeve is arranged corresponding to the outer surface of second water pumping sleeve, the blade is multiple and interval arrangement between the surface corresponding to the first water pumping sleeve and second water pumping sleeve.Using the above structure, when rotating, impeller can absorb water from the bottom, side lower part of backwater cavity, and in the process of water flow upward gushing, water flow is gathered from bottom to top to middle, so that the gushing water flow directly upward gush, can avoid local accumulation or rotation of fruit and vegetable, but can provide sufficient turbulent cleaning force, to improve cleaning effect.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, specifically to a fruit and vegetable washing machine. Background Technology

[0002] The common cleaning methods of fruit and vegetable washing machines are spraying water jets onto the fruits and vegetables, or creating turbulence in the water that submerges the fruits and vegetables to clean them.

[0003] Chinese invention patent ZL 202010900536.4, entitled "A Cleaning Machine," discloses a structure comprising a water tank, a cleaning basket, a spray arm, and an impeller. The cleaning basket is placed in the water tank. The spray arm has a base and an upper seat. The base is constrained in the cleaning basket and can rotate under external force. The base has an opening that runs vertically through it. The upper seat is rotatably positioned above the base and has a flow channel. The bottom wall of the upper seat has a water inlet with a corresponding opening that communicates with the flow channel, and the top wall of the upper seat has a spray hole that communicates with the flow channel. The impeller is used to draw water from below the base into the flow channel.

[0004] The above structure cleans fruits and vegetables by creating turbulent flow, but the drive structure components are cumbersome. Furthermore, with the impeller structure described above, the water flow moves downward from the center of the impeller, then is centrifugally thrown to the side by the impeller, and moves upward after being obstructed by the tank wall, forming a circulation. However, due to the obstruction of the vegetable basket, the fruits and vegetables inside will adhere to the bottom of the basket, affecting the internal water flow and resulting in a poorer cleaning effect. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a fruit and vegetable washing machine that can concentrate water towards the center and then spray it upward, thereby avoiding local accumulation or rotation of fruits and vegetables and improving the cleaning effect, in light of the current state of the technology.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0007] A fruit and vegetable washing machine includes a housing with a recessed water return chamber at the bottom. A rotatable impeller is disposed in the water return chamber. The impeller includes a first water-collecting sleeve, a second water-collecting sleeve, and blades. The diameter of the first water-collecting sleeve gradually decreases from bottom to top, and the diameter of the second water-collecting sleeve gradually decreases from bottom to top and is arranged at intervals on the first water-collecting sleeve. At least a portion of the inner surface of the first water-collecting sleeve is arranged corresponding to the outer surface of the second water-collecting sleeve. The blades are multiple and are arranged at intervals between the corresponding surfaces of the first and second water-collecting sleeves.

[0008] With the above structure, when the impeller rotates, it can draw water from the bottom and lower side of the return water chamber, and in the process of spraying the water upward, it can concentrate the water flow from bottom to top towards the middle. In this way, the sprayed water flows directly upward, which can avoid the local accumulation or rotation of fruits and vegetables, but can provide sufficient turbulent cleaning force, thereby improving the cleaning effect.

[0009] Preferably, a water-drawing channel is formed between the outer surface of the first water-drawing sleeve and the inner surface of the second water-drawing sleeve, and the lower edge of the second water-drawing sleeve is located above the lower edge of the first water-drawing sleeve, thereby forming a water-drawing channel that connects the bottom and the lower side. With this structure, the impeller not only draws water from below its bottom but also from the side of its bottom, thus avoiding lateral water flow and further preventing the problem of local accumulation or rotation of fruits and vegetables.

[0010] Preferably, the upper edge of the second water-drawing sleeve is located above the upper edge of the first water-drawing sleeve, and the upper edge of the first water-drawing sleeve is provided with an upwardly extending guide column. The outer surface of the guide column and the upper edge of the first water-drawing sleeve together enclose a water outlet with a width smaller than the water-drawing channel. This structure increases the upward force of the water flow, further improving the cleaning effect.

[0011] Preferably, the blades are circumferentially curved to form axial flow blades. The upper edge of the blades is flush with the upper end of the first water-collecting sleeve and the guide column, and the lower edge of the blades extends below the second water-collecting sleeve and is flush with the lower edge of the first water-collecting sleeve. The top of the guide column is closed, thereby closing the upper port of the first water-collecting sleeve. This structure achieves smoother and more concentrated axial water collection.

[0012] Preferably, the return water chamber extends along the length of the housing, and the impeller includes a first impeller and a second impeller arranged side-by-side along the length of the return water chamber. The first side of the first and second impellers is positioned near the first sidewall of the return water chamber, and the second side of the first and second impellers, opposite to the first side, is positioned near the second sidewall of the return water chamber. The bottom wall of the return water chamber forms a flow-guiding structure that gradually decreases from its first sidewall to its second sidewall. The bottom wall of the return water chamber has an inlet positioned near the first sidewall and an outlet positioned near the second sidewall. By arranging the first and second impellers side-by-side in the return water chamber, and by setting the bottom wall of the return water chamber as a flow-guiding structure that gradually decreases from its first sidewall to its second sidewall, and by placing the inlet at a high position and the outlet at a low position, it is beneficial to ensure that water flows rapidly to all parts during water intake and to quickly drain accumulated water during water drainage, thereby avoiding residue accumulation, eliminating secondary pollution, and improving the cleaning effect.

[0013] Preferably, the bottom wall of the return water chamber has a first guide surface that gradually decreases from the first side wall towards the drain outlet and has a triangular structure. The tip of the first guide surface extends towards the second side wall to form a recess that symmetrically divides the two sides of the triangular structure, and the drain outlet is located on the recess. This structure facilitates the rapid drainage of accumulated water.

[0014] Preferably, the bottom wall of the return water cavity on the first side of the triangular structure gradually extends downward from the edge towards the indentation to form a second guide surface, and the bottom wall of the return water cavity on the second side of the triangular structure gradually extends downward from the edge towards the indentation to form a third guide surface. This structure allows for rapid drainage of accumulated water in the return water cavity, increasing the drainage speed and preventing residue from accumulating at the bottom of the return water cavity.

[0015] Compared with the prior art, the advantages of this utility model are as follows: This utility model is provided with a recessed water return chamber and a pulsator is provided in the water return chamber. When rotating, it can draw water from the bottom and lower side of the water return chamber, and in the process of spraying the water upward, the water flow is gathered from bottom to top towards the middle. In this way, the sprayed water flow surges directly upward, which can avoid local accumulation or rotation of fruits and vegetables, but can provide sufficient turbulent cleaning force, thereby improving the cleaning effect. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model (hidden fruit and vegetable washing basket);

[0017] Figure 2 This is a cross-sectional view of an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the box in an embodiment of this utility model;

[0019] Figure 4 This is a schematic diagram of the impeller structure in an embodiment of the present invention;

[0020] Figure 5 for Figure 4 A schematic diagram of the bottom structure;

[0021] Figure 6 for Figure 4 A sectional view. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figures 1-6As shown, the fruit and vegetable washing machine of this embodiment includes a housing 1. A recessed water return cavity 11 is provided at the bottom of the housing 1. A rotatable impeller 2 is provided in the water return cavity 11. The impeller 2 includes a first water intake sleeve 21, a second water intake sleeve 22, and a plurality of blades 23. The diameter of the first water intake sleeve 21 gradually decreases from bottom to top, and the diameter of the second water intake sleeve 22 gradually decreases from bottom to top and is arranged at intervals on the first water intake sleeve 21. At least a portion of the inner surface of the first water intake sleeve 21 is arranged corresponding to the outer surface of the second water intake sleeve 22. There are a plurality of blades 23 and they are arranged at intervals between the corresponding surfaces of the first water intake sleeve 21 and the second water intake sleeve 22.

[0024] With the above structure, when the impeller 2 rotates, it can draw water from the bottom and lower side of the return water chamber 11, and in the process of spraying the water upward, it can concentrate the water flow from bottom to top towards the middle. In this way, the sprayed water flow surges directly upward, which can avoid the local accumulation or rotation of fruits and vegetables, but can provide sufficient turbulent cleaning force, thereby improving the cleaning effect.

[0025] A water-drawing channel 20 is formed between the outer surface of the first water-drawing sleeve 21 and the inner surface of the second water-drawing sleeve 22. The lower edge of the second water-drawing sleeve 22 is located above the lower edge of the first water-drawing sleeve 21, thus forming a water intake 201 that connects the bottom and the lower side of the water-drawing channel 20. With this structure, the impeller 2 not only draws water from below its bottom but also from the side of its bottom, thereby avoiding lateral water flow and further preventing the problem of local accumulation or rotation of fruits and vegetables.

[0026] The upper edge of the second water-drawing sleeve 22 is located above the upper edge of the first water-drawing sleeve 21. The upper edge of the first water-drawing sleeve 21 is provided with an upwardly extending guide column 24. The outer surface of the guide column 24 and the upper edge of the first water-drawing sleeve 21 together enclose a water outlet 202 with a width smaller than the water-drawing channel 20. This structure is adopted to increase the upward force of the water flow and further improve the cleaning effect.

[0027] The blade 23 is circumferentially bent to form an axial flow blade 23. The upper edge of the blade 23 is flush with the upper ends of the first water-collecting sleeve 21 and the guide column 24, and the lower edge of the blade 23 extends below the second water-collecting sleeve 22 and is flush with the lower edge of the first water-collecting sleeve 21. The top of the guide column 24 is closed to enclose the upper port of the first water-collecting sleeve 21. This structure achieves smoother and more concentrated axial water collection.

[0028] The return water chamber 11 extends along the length of the housing 1. The impeller 2 includes a first impeller and a second impeller arranged side by side along the length of the return water chamber 11. The first side of the first impeller and the second impeller are arranged close to the first side wall of the return water chamber 11, and the second side of the first impeller and the second impeller opposite to the first side are arranged close to the second side wall of the return water chamber 11. The bottom wall of the return water chamber 11 has a flow guiding structure that gradually decreases from its first side wall to its second side wall. The bottom wall of the return water chamber 11 has an inlet 111 arranged close to the first side wall and an outlet 112 arranged close to the second side wall. The return water chamber 11 is equipped with a first impeller and a second impeller arranged side by side, and the bottom wall of the return water chamber 11 is designed as a flow guide structure that gradually decreases from its first side wall to its second side wall. The inlet 111 is set at a high position and the outlet 112 is set at a low position, which is conducive to the rapid flow of water to all places when water enters and the rapid discharge of accumulated water when draining, thereby avoiding the accumulation of residue, eliminating secondary pollution, and improving the cleaning effect.

[0029] The bottom wall of the return water chamber 11 has a first guide surface 01 that gradually decreases from the first side wall toward the drain outlet 112 and has a triangular structure. The tip of the first guide surface 01 extends toward the second side wall to form a recess 011 that symmetrically divides the two sides of the triangular structure. The drain outlet 112 is located on this recess. This structure facilitates the rapid drainage of accumulated water.

[0030] The bottom wall of the return water cavity 11 on the first side of the triangular structure gradually extends downward from the edge towards the indentation to form a second guide surface 02, and the bottom wall of the return water cavity 11 on the second side of the triangular structure gradually extends downward from the edge towards the indentation to form a third guide surface 03. This structure is used to quickly guide the water accumulated in the return water cavity 11, increase the water discharge speed, and prevent residue from accumulating at the bottom of the return water cavity 11.

[0031] The second sidewall of the return water chamber 11 smoothly arches outward at the corresponding second region to form a drainage area 113, and the outer edge of the drain outlet 112 is arranged close to the inner wall of the drainage area 113. By setting the aforementioned outwardly arched drainage area 113, the turbulent water flow will rush along the arched sidewall, thereby rinsing the edge of the drain outlet 112 360 degrees, which not only avoids the accumulation of residue, but also helps to further improve the drainage effect.

[0032] The bottom of the housing 1 is equipped with a drive unit 5 for rotating the first and second impellers. This drive unit 5 is a motor, and its output shaft 51 passes through the bottom wall of the housing 1 and connects to the central part of the first and second impellers. This structure provides power for the rotation of the impellers, enabling automatic cleaning. The housing 1 also contains a fruit and vegetable washing basket 3, whose bottom and side walls are hollowed-out. Fruits and vegetables are placed in the washing basket 3 for cleaning.

[0033] This embodiment features a recessed water return chamber 11, with a pulsator 2 installed within it. When rotating, the pulsator can draw water from the bottom and lower sides of the water return chamber 11, and during the upward jetting of the water, it concentrates the water flow from bottom to top towards the center. This direct upward jetting of water avoids localized accumulation or rotation of fruits and vegetables while providing sufficient turbulent cleaning force, thereby improving the cleaning effect.

[0034] 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 fruit and vegetable washing machine, comprising a housing (1), wherein a recessed water return cavity (11) is provided at the bottom of the housing (1), and a rotatable impeller (2) is provided in the water return cavity (11), characterized in that: The impeller (2) includes a first water-drawing sleeve (21), a second water-drawing sleeve (22), and blades (23). The diameter of the first water-drawing sleeve (21) gradually decreases from bottom to top, and the diameter of the second water-drawing sleeve (22) gradually decreases from bottom to top and is arranged at intervals on the first water-drawing sleeve (21). At least a portion of the inner surface of the first water-drawing sleeve (21) is arranged corresponding to the outer surface of the second water-drawing sleeve (22). There are multiple blades (23) arranged at intervals between the corresponding surfaces of the first water-drawing sleeve (21) and the second water-drawing sleeve (22).

2. The fruit and vegetable washing machine according to claim 1, characterized in that: A water-drawing channel (20) is formed between the outer surface of the first water-drawing sleeve (21) and the inner surface of the second water-drawing sleeve (22). The lower edge of the second water-drawing sleeve (22) is located above the lower edge of the first water-drawing sleeve (21), thereby forming a water-drawing channel (20) that connects the bottom and the lower side.

3. The fruit and vegetable washing machine according to claim 2, characterized in that: The upper edge of the second water-drawing sleeve (22) is located above the upper edge of the first water-drawing sleeve (21). The upper edge of the first water-drawing sleeve (21) is provided with an upwardly extending guide column. The outer surface of the guide column and the upper edge of the first water-drawing sleeve (21) together enclose an outlet with a width smaller than that of the water-drawing channel (20).

4. The fruit and vegetable washing machine according to claim 3, characterized in that: The blade (23) is bent circumferentially to form an axial flow blade (23). The upper edge of the blade (23) is flush with the upper end of the first water intake sleeve (21) and the guide column. The lower edge of the blade extends below the second water intake sleeve (22) and is flush with the lower edge of the first water intake sleeve (21).

5. The fruit and vegetable washing machine according to claim 3, characterized in that: The top of the guide column is closed, thereby closing the upper port of the first water-drawing sleeve (21).

6. The fruit and vegetable washing machine according to any one of claims 1 to 5, characterized in that: The return water chamber (11) extends along the length of the box body (1), and the impeller (2) includes a first impeller and a second impeller arranged side by side along the length of the return water chamber (11).

7. The fruit and vegetable washing machine according to claim 6, characterized in that: The first impeller and the second impeller are arranged on the first side near the first sidewall of the return water chamber (11), and the second side of the first impeller and the second impeller opposite to the first side is arranged near the second sidewall of the return water chamber (11). The bottom wall of the return water chamber (11) has a flow guiding structure that gradually decreases from its first sidewall to its second sidewall. The bottom wall of the return water chamber (11) has an inlet (111) arranged near the first sidewall and an outlet (112) arranged near the second sidewall.

8. The fruit and vegetable washing machine according to claim 7, characterized in that: The bottom wall of the return water cavity (11) is formed with a first guide surface (01) that gradually decreases from the first side wall toward the drain outlet (112) and has a triangular structure. The tip of the first guide surface (01) extends toward the second side wall to form a recess (011) that symmetrically divides the two sides of the triangular structure. The drain outlet is located on the recess.

9. The fruit and vegetable washing machine according to claim 8, characterized in that: The bottom wall of the return water cavity (11) located on the first side of the triangular structure gradually extends downward from the edge to the indentation to form a second guide surface (02), and the bottom wall of the return water cavity (11) located on the second side of the triangular structure gradually extends downward from the edge to the indentation to form a third guide surface (03).

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