Spraying arm for flexibly cleaning fruits and vegetables

By designing a limiting structure and a water outlet structure, the spray arm forms a ring-shaped rotating water flow, which solves the problem of poor cleaning effect of existing spray arms and achieves a more efficient fruit and vegetable cleaning effect.

CN224155630UActive Publication Date: 2026-04-24ZHANGZHOU XINYONGCHUANG FOOD MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHANGZHOU XINYONGCHUANG FOOD MASCH CO LTD
Filing Date
2025-05-19
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

The existing spray arm has a row of water outlets, which limits the cleaning effect on fruits and vegetables.

Method used

A spray arm for gentle cleaning of fruits and vegetables was designed. By setting a limiting structure and a water outlet structure, a ring-shaped rotating water flow is formed to improve the cleaning effect.

Benefits of technology

The design of the limiting structure and the water outlet structure achieves the sealing of the spray arm and the annular rotating water flow, thus improving the cleaning effect of fruits and vegetables.

✦ Generated by Eureka AI based on patent content.

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Abstract

The spraying arm comprises a lower arm body, an upper arm body is arranged on the upper side of the lower arm body, a connection water inlet hole is formed in the middle of the lower arm body, and the lower side of the connection water inlet hole is connected with a water inlet pipe; the sealing ring is fixedly mounted on the middle side of the upper end of the lower arm body, the outer side of the middle of the lower arm body is connected with a limiting structure, and the limiting structure comprises a fixing plate, a mounting block and a movable fixing rod; and a water outlet structure is arranged on the outer side of the upper end of the upper arm body and comprises an installation water outlet pipe and an air inlet hole, the installation water outlet pipe is installed on the upper side of the upper arm body, and the air inlet hole is formed in the outer side of the installation water outlet pipe. According to the spraying arm for flexibly cleaning the fruits and the vegetables, the limiting structures are arranged, the spraying arm bodies can be limited, so that the flow dividing channels can be sealed, the water outlet structures are arranged, annular rotating water flow can be formed, and therefore the cleaning effect on the fruits and the vegetables is improved.
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Description

Technical Field

[0001] This utility model relates to the field of flexible cleaning technology for fruits and vegetables, specifically a spray arm for flexible cleaning of fruits and vegetables. Background Technology

[0002] A spray arm is a device that sprays liquid, or a apparatus for spraying liquids or gases. It is typically installed in dishwashers, cleaning equipment, or other devices that require the spraying of cleaning liquids. Its main function is to evenly spray cleaning liquid onto the surface to be cleaned through multiple nozzles to achieve a cleaning effect. In the gentle washing process of fruits and vegetables, a spray arm is used to gently clean them, thereby improving the cleaning effect. For example:

[0003] Chinese Patent Publication No. CN109589069B discloses a spray arm and a cleaning machine using the spray arm. The spray arm includes a spray arm body, on which a water inlet and a water outlet are provided. An air inlet is provided at the bottom of the spray arm body, and an aeration stone is provided on the air inlet to allow gas to pass through while preventing water from flowing through. This invention utilizes the negative pressure phenomenon generated between the spray arm body and the bottom wall of the washing chamber during the rotation of the spray arm. An air inlet and an aeration stone are set on the lower surface of the spray arm body. During use, water in the spray arm body is continuously sprayed out through the water outlet. The water spray creates a negative pressure difference below the spray arm body. Under the action of the negative pressure difference, gas is drawn into the spray arm through the aeration stone and reacts with the water flow to generate bubbles. When water mixed with bubbles is sprayed onto the dishes, the bubbles in the water flow come into contact with the dishes and break, generating a large impact force, thereby dispersing stubborn dirt on the dishes or fruits and vegetables, achieving a better cleaning effect.

[0004] Based on existing solutions and actual production and processing applications, the current spray arms used for flexible cleaning of fruits and vegetables still have some problems. For example, when the spray arm performs flexible cleaning of fruits and vegetables, the water outlets on the upper side of the spray arm clean the fruits and vegetables. Since the water outlets on the spray arm are arranged in a row, the cleaning effect on the fruits and vegetables is limited. Therefore, this utility model provides a spray arm for flexible cleaning of fruits and vegetables to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a spray arm for the flexible cleaning of fruits and vegetables, so as to solve the problem mentioned in the background art that when the spray arm is used to clean fruits and vegetables, the water outlet holes set on the upper side of the spray arm are used to clean the fruits and vegetables, which leads to the limited cleaning effect of the fruits and vegetables because the water outlet holes on the spray arm are arranged in a row.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a spray arm for flexible cleaning of fruits and vegetables, comprising a lower arm body, an upper arm body on its upper side, and a connecting water inlet hole in the middle of the lower arm body, and a water inlet pipe connected to the lower side of the connecting water inlet hole.

[0007] Also includes:

[0008] A sealing ring is fixedly installed on the upper middle side of the lower arm body, and a limiting structure is connected to the outer middle part of the lower arm body. The limiting structure includes a fixing plate, a mounting block and a movable fixing rod. The fixing plate is installed on the outer middle part of the lower arm body, and the movable fixing rod is connected to the outer middle part of the fixing plate. The mounting block is connected to the inner side of the movable fixing rod.

[0009] The upper arm has a water outlet structure on its upper outer side, which includes a water outlet pipe and an air inlet. The water outlet pipe is installed on the upper side of the upper arm, and an air inlet is provided on the outer side of the water outlet pipe.

[0010] Preferably, a connecting mounting plate is also fixedly installed on the outer side of the lower end of the lower arm body, and a mounting groove is provided on the outer side of the connecting mounting plate;

[0011] An installation baffle is fixedly installed on the inner middle side of the lower arm body, and a connecting baffle is fixedly installed on the inner rear side of the lower arm body. A connecting baffle is fixedly installed on the outer side of the installation baffle.

[0012] Preferably, the connecting baffle plate and the lower arm form a diversion channel and play a role in the flow of water.

[0013] Preferably, the water outlet pipe is installed at an angle, and the water outlet pipe is arranged according to a certain pattern.

[0014] Preferably, the sealing ring is snap-fitted to the upper arm body, and the sealing ring is connected to the lower arm body by an adhesive.

[0015] Preferably, the fixing plate and the lower arm body are fixedly connected by welding, and the fixing plate has a groove structure in the middle.

[0016] Preferably, the vertical cross-sectional shape of the mounting block is an "L" shape, and the mounting block and the fixing plate are connected by a snap-fit ​​connection.

[0017] Preferably, the mounting block and the movable fixing rod are connected by a thread and serve to limit the movement between the lower arm and the upper arm.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the spray arm for flexible cleaning of fruits and vegetables is provided with a limiting structure, which can limit the distance between the spray arm bodies, thereby sealing the diversion channel, and is provided with a water outlet structure, which can form a ring-shaped rotating water flow, thereby improving the cleaning effect on fruits and vegetables.

[0019] 1. By placing the upper arm body on the upper side of the lower arm body, the upper arm body is engaged with the outer side of the sealing ring, thereby allowing the upper arm body to fit against the upper side of the mounting baffle, the upper side of the connecting baffle, and the upper side of the connecting baffle respectively. This causes the upper arm body to drive the mounting block to engage with the inside of the fixed plate. Rotating the moving fixed rod causes it to be threaded on the outer side of the middle of the fixed plate, thereby moving the inner side of the moving fixed rod. This allows the moving fixed rod to be threaded on the outer side of the lower end of the mounting block, facilitating the installation between the lower arm body and the upper arm body.

[0020] 2. By placing the lower arm body inside the cleaning machine, the lower arm body drives the connecting mounting plate to engage in the circular slot of the cleaning machine. By rotating the bolt, the bolt is threaded on the outside of the circular slot, thereby making the bolt threaded on the inside of the mounting slot, which facilitates the limiting of the lower arm body.

[0021] 3. Water flows into the inlet pipe and then through the connecting inlet hole into the lower arm, allowing the water to flow into the distribution channel. This allows the water to enter the outlet pipe, which is then arranged according to a certain pattern and with the opening direction set, so that the water jetted from the outlet pipe can form a circular rotating water flow, thereby improving the cleaning effect of fruits and vegetables. Attached Figure Description

[0022] Figure 1 This is a schematic cross-sectional view of the connection between the lower arm and the connecting mounting plate of this utility model.

[0023] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0024] Figure 3 This is a schematic cross-sectional view of the connection between the upper arm and the water outlet pipe of this utility model.

[0025] Figure 4 This utility model Figure 3 Enlarged structural diagram at point B;

[0026] Figure 5 This is a schematic cross-sectional view of the connection between the lower arm and the mounting baffle of this utility model.

[0027] Figure 6This is an exploded structural diagram of the connection between the lower arm and the upper arm of this utility model.

[0028] In the diagram: 1. Lower arm; 2. Mounting baffle; 3. Connecting baffle; 4. Diversion channel; 5. Connecting mounting plate; 6. Water inlet pipe; 7. Upper arm; 8. Mounting water outlet pipe; 9. Sealing ring; 10. Air inlet; 11. Connecting baffle; 12. Mounting groove; 13. Fixing plate; 14. Mounting block; 15. Movable fixing rod; 16. Connecting water inlet. Detailed Implementation

[0029] 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 protection scope of the present utility model.

[0030] Please see Figure 1-6 This utility model provides a technical solution: a spray arm for flexible cleaning of fruits and vegetables, comprising: a lower arm body 1, a mounting baffle plate 2, a connecting baffle plate 3, a diversion channel 4, a connecting mounting plate 5, a water inlet pipe 6, an upper arm body 7, a mounting water outlet pipe 8, a sealing ring 9, an air inlet 10, a connecting baffle plate 11, a mounting groove 12, a fixing plate 13, a mounting block 14, a movable fixing rod 15, and a connecting water inlet 16. In operation, the specific details are as follows... Figure 1 , Figure 3 and Figure 4As shown, a sealing ring 9 is fixedly installed on the outer side of the upper end of the lower arm body 1, a fixing plate 13 is fixedly connected to the outer side of the middle part of the lower arm body 1, a movable fixing rod 15 is movably connected to the outer side of the middle part of the fixing plate 13, an upper arm body 7 is movably installed on the outer side of the upper end of the sealing ring 9, and a mounting block 14 is fixedly connected to the middle side of the lower end of the upper arm body 7. The upper arm body 7 is manually placed on the upper side of the lower arm body 1, so that the upper arm body 7 moves downward under the action of gravity. As a result, the upper arm body 7 is engaged and installed on the outer side of the sealing ring 9 under the action of downward movement. Furthermore, the upper arm body 7 is respectively attached to the upper side of the mounting baffle plate 2, the upper side of the connecting baffle plate 3, and the upper side of the connecting baffle plate 11. This allows the upper arm 7 to move downwards, causing the mounting block 14 to engage inside the fixed plate 13. Tightening the movable fixing rod 15 causes it to be threaded onto the outer side of the middle of the fixed plate 13. The threaded action between the movable fixing rod 15 and the fixed plate 13 causes the movable fixing rod 15 to move inwards, and then it is threaded onto the outer side of the lower end of the mounting block 14. This facilitates the assembly of the lower arm 1 and the upper arm 7, and also allows for the disassembly of the lower arm 1 and the upper arm 7, thereby cleaning the diversion channel 4 and preventing blockage.

[0031] Specific examples Figure 1 , Figure 3 and Figure 6 As shown, a water inlet hole 16 is opened in the middle of the lower arm body 1, a water inlet pipe 6 is fixedly installed on the lower side of the water inlet hole 16, a connecting mounting plate 5 is fixedly installed on the middle side of the lower end of the lower arm body 1, and a mounting groove 12 is opened on the outer side of the connecting mounting plate 5. The lower arm body 1 is manually placed inside the cleaning machine, so that the lower arm body 1 drives the connecting mounting plate 5 to engage in the circular slot on the lower side of the cleaning machine, thereby making the water inlet pipe 6 engage in the circular slot on the lower side of the cleaning machine. Then, the bolt is tightened, so that the bolt is threaded on the outer side of the circular slot under the tightening action, thereby making the bolt move inward, and then making the bolt threaded inside the mounting groove 12, which facilitates the limiting of the connecting mounting plate 5, thereby facilitating the installation of the lower arm body 1.

[0032] Specific examples Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, a mounting baffle 2 is fixedly installed inside the middle side of the lower arm body 1, a connecting baffle 3 is fixedly installed outside the mounting baffle 2, and a connecting baffle 11 is fixedly installed inside the rear side of the lower arm body 1. A diversion channel 4 is formed between the connecting baffle 3, the connecting baffle 11, and the lower arm body 1. Water flows into the interior of the lower arm body 1 through the water inlet pipe 6, causing the water to flow inside the diversion channel 4. Under the action of water pressure, the water flows into the interior of the mounting outlet pipe 8. This allows external air to enter the water flow through the air inlet 10 on the outside of the mounting outlet pipe 8, forming a large number of bubbles. This reduces the density and impact force of the water flow, making it suitable for washing softer fruits and vegetables. The mounting outlet pipe 8 is arranged in a certain pattern and the opening direction is set so that the water flow sprayed from the mounting outlet pipe 8 can form a ring-shaped rotating water flow, exerting force on the fruits and vegetables, causing them to rotate in a certain direction inside the basket.

[0033] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A spray arm for flexible cleaning of fruits and vegetables, comprising a lower arm body (1), an upper arm body (7) is provided on its upper side, and a connecting water inlet hole (16) is provided in the middle of the lower arm body (1), and a water inlet pipe (6) is connected to the lower side of the connecting water inlet hole (16). Its features are, Also includes: A sealing ring (9) is fixedly installed on the upper middle side of the lower arm body (1), and a limiting structure is connected to the middle outer side of the lower arm body (1). The limiting structure includes a fixing plate (13), a mounting block (14) and a movable fixing rod (15). The fixing plate (13) is installed on the middle outer side of the lower arm body (1). The middle outer side of the fixing plate (13) is connected to the movable fixing rod (15), and the inner side of the movable fixing rod (15) is connected to the mounting block (14). The upper arm body (7) has a water outlet structure on its upper outer side, and the water outlet structure includes a water outlet pipe (8) and an air inlet (10). The water outlet pipe (8) is installed on the upper side of the upper arm body (7), and an air inlet (10) is opened on the outer side of the water outlet pipe (8).

2. The spray arm for flexible cleaning of fruits and vegetables according to claim 1, characterized in that: A connecting mounting plate (5) is also fixedly installed on the outer side of the lower end of the lower arm body (1), and a mounting groove (12) is provided on the outer side of the connecting mounting plate (5). An installation baffle plate (2) is fixedly installed on the inner middle side of the lower arm body (1), and a connecting baffle plate (11) is fixedly installed on the inner rear side of the lower arm body (1), and a connecting baffle plate (3) is fixedly installed on the outer side of the installation baffle plate (2).

3. A spray arm for flexible cleaning of fruits and vegetables according to claim 2, characterized in that: The connecting baffle plate (3) and the lower arm body (1) form a diversion channel (4) and play a role in the flow of water.

4. A spray arm for flexible cleaning of fruits and vegetables according to claim 1, characterized in that: The water outlet pipe (8) is installed at an angle, and the water outlet pipe (8) is arranged according to a certain pattern.

5. A spray arm for flexible cleaning of fruits and vegetables according to claim 1, characterized in that: The sealing ring (9) is engaged with the upper arm body (7), and the sealing ring (9) is connected to the lower arm body (1) by an adhesive.

6. A spray arm for flexible cleaning of fruits and vegetables according to claim 1, characterized in that: The fixing plate (13) and the lower arm body (1) are fixedly connected by welding, and the fixing plate (13) has a groove structure in the middle.

7. A spray arm for flexible cleaning of fruits and vegetables according to claim 6, characterized in that: The vertical cross-section of the mounting block (14) is an "L" shape, and the mounting block (14) and the fixing plate (13) are connected by a snap-fit ​​connection.

8. A spray arm for flexible cleaning of fruits and vegetables according to claim 7, characterized in that: The mounting block (14) is threadedly connected to the movable fixing rod (15) and serves to limit the movement between the lower arm (1) and the upper arm (7).

Citation Information

Patent Citations

  • A spray arm and a cleaning machine using the spray arm

    CN109589069B