Spray assembly for cleaning machine and cleaning machine
By setting limiting and elastic components on the spray arm of the cleaning machine, and using water flow to control the movement of the limiting components, the problem of fixing the spray direction of the spray arm is solved, realizing fixed-point and cyclic cleaning, simplifying the structure and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO FOTILE KITCHEN WARE CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-07-10
AI Technical Summary
The spray direction of the spray arms of existing cleaning machines is fixed, which makes it impossible to achieve point cleaning. In addition, setting up a drive mechanism to achieve point cleaning is complex and costly.
Movable limiting components and elastic components are installed on the spray arm. The contact or disengagement of the limiting components and the stop components is controlled by the water flow. Combined with the rotation of the spray arm, fixed-point or cyclic cleaning can be achieved, which reduces the complexity of the structure and the cost.
It enables the fixed-point or cyclical cleaning of tableware and fruits and vegetables with different levels of dirtiness, simplifying the structure and reducing costs.
Smart Images
Figure CN224474413U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a cleaning machine for cleaning tableware and / or fruits and vegetables, specifically to a spray assembly for the cleaning machine and the cleaning machine itself. Background Technology
[0002] A cleaning machine, such as a dishwasher, is a device that sprays cold or hot water onto dishes to remove dirt and clean them. Dishes are placed in a dish rack inside the dishwasher cabinet. A typical dishwasher includes a pump that sprays washing water and spray arms.
[0003] The spray arm, as disclosed in Chinese Utility Model Patent Application No. CN202420131436.3 (Publication No. CN222018262U), entitled "Spray Arm for Dishwasher and Dishwasher", includes a strip-shaped body with a flow channel extending along its length inside the body. The central part of the body is provided with a water inlet that is fluidly connected to the flow channel. The body is provided with a plurality of spray holes spaced apart along its length. Each spray hole is fluidly connected to the flow channel. The spray holes are arranged in pairs, and two spray holes in the same group are called a spray hole group. The two spray holes in the same spray hole group are symmetrically distributed on both sides of the water inlet.
[0004] The spray direction of the nozzles on the current spray arm is fixed, and the spray arm is constantly rotating during the spraying process. This makes it impossible to achieve targeted cleaning, and the cleaning effect on heavily soiled areas needs to be improved. If a drive mechanism such as a motor is set to control whether the spray arm rotates or not, targeted cleaning can be achieved, but the structure is complex and the cost is high. Utility Model Content
[0005] The first technical problem to be solved by this utility model is to provide a spray assembly for a cleaning machine that can achieve fixed-point cleaning, in light of the current state of the technology.
[0006] The second technical problem to be solved by this utility model is to provide a cleaning machine that uses the above-mentioned spraying components, in view of the current state of the prior art.
[0007] The technical solution adopted by this utility model to solve the first technical problem mentioned above is as follows: a spray assembly for a cleaning machine, including a first spray arm with an internal flow channel, the first spray arm being rotatable about a vertically extending axis, and a spray hole connected to the flow channel on the first spray arm. The first spray arm is characterized in that a limiting member is provided on the first spray arm that is movable relative to it, the limiting member being able to move to a state of abutting or disengaging from a stop of the cleaning machine, and the stop being located on the movement path of the limiting member as it rotates with the first spray arm.
[0008] A driving mechanism such as a motor can be used to drive the movement of the limiting component, but this structure is complex and costly. Therefore, preferably, the first spray arm is also provided with a through hole, a plug, and an elastic element. The through hole is connected to the flow channel, the plug can be movably embedded in the through hole, and the limiting element is provided on the outer wall surface of the plug. The plug can move outward to a first position under the action of water flow. In this state, the limiting element abuts against the stop. The plug can move inward to a second position under the action of the elastic element. In this state, the limiting element disengages from the stop. Regardless of whether the plug is in the first or second position, the plug always blocks the through hole. During the washing process, in the intensive washing phase, the water flow head within the channel is at its maximum. Under the impact of the water flow, the block can move outward, causing the limiting member to move outward and block against the stop. The first spray arm cannot rotate, allowing for focused cleaning of the tableware at that location. When the first spray arm needs to continue rotating, simply reduce the washing power. After the head is reduced, the block will move inward under the tension of the elastic member, causing the limiting member to move inward and disengage from the stop, allowing the first spray arm to continue rotating and cleaning. Therefore, this application only requires a simple, low-cost elastic member that works in conjunction with the water flow to achieve the movement of the limiting member. The structure is simple and the cost is low.
[0009] In the above scheme, the elastic element is a spring, one end of which is connected to the block and the other end of which is connected to the first spray arm.
[0010] To improve the cleaning effect of the spray assembly, the first spray arm is strip-shaped and divided into a first section and a second section along its length. The spray holes and through holes are located on the first section, while the second section has a rotatable second spray arm connected to the flow channel and rotating around a vertically extending axis. Thus, when the limiting member and the stop member abut against each other, preventing the first spray arm from rotating, the spray holes on the first spray arm can perform targeted cleaning of the tableware and / or fruits and vegetables corresponding to the first section. Since the second spray arm can rotate, it can perform rotating spray cleaning of the tableware and / or fruits and vegetables corresponding to the second section. During cleaning, tableware and / or fruits and vegetables with high levels of dirt are placed in the corresponding cleaning position of the first section, while tableware and / or fruits and vegetables with lower levels of dirt are placed in the corresponding cleaning position of the second section.
[0011] The technical solution adopted by this utility model to solve the second technical problem mentioned above is: a cleaning machine, characterized in that it includes a housing and the above-mentioned spray assembly, the spray assembly is disposed in the housing, and the housing is also provided with a stop, the stop being located on the movement trajectory of the limiting member as the first spray arm rotates.
[0012] The baffle can be set on the side wall of the box, but the box needs to hold a bowl basket that can enter and exit. Therefore, the baffle may interfere with the entry and exit of the bowl basket. Preferably, the box also has a bowl basket. The bowl basket and the spray assembly are arranged vertically in sequence. The baffle is set on the bowl basket. The bowl basket is generally a hollow structure made of ribs. One of the ribs can be lengthened to form the baffle. The structure is simple and will not interfere with the entry and exit of the bowl basket.
[0013] In the above scheme, the limiting member extends horizontally, and the stop member extends vertically.
[0014] Compared with the prior art, the advantages of this utility model are as follows: This utility model provides a limiting member that can move relative to the first spray arm. This limiting member can abut against or disengage from the baffle of the washing machine. Because the baffle is located on the movement path of the limiting member as the first spray arm rotates, the first spray arm cannot rotate when the baffle and the limiting member abut against each other. At this time, the water sprayed from the nozzles on the first spray arm can perform targeted cleaning of tableware and / or fruits and vegetables. When the baffle and the limiting member disengage from each other, the first spray arm can rotate to perform cyclic spray cleaning of tableware and / or fruits and vegetables. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0016] Figure 2 for Figure 1 A partial structural diagram;
[0017] Figure 3 for Figure 2 Enlarged view of point A;
[0018] Figure 4 for Figure 2 A schematic diagram of the spray assembly in the diagram;
[0019] Figure 5 for Figure 4 A partial structural diagram (the block is in the first position);
[0020] Figure 6 for Figure 4 A partial structural diagram (the block is in the second position). Detailed Implementation
[0021] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.
[0022] In the description of this utility model, it should be understood that, unless otherwise stated, "multiple" means two or more, and the terms "upper," "lower," "left," "right," "top," "bottom," "front," "rear," etc., indicate the orientation or positional relationship based on the direction or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0023] In the description of this utility model patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an adhesive connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model patent based on the specific circumstances.
[0024] like Figures 1-6 As shown, the cleaning machine of this preferred embodiment includes a housing 1 and a spray assembly, with the spray assembly disposed in the housing 1.
[0025] The spray assembly includes a first spray arm 2 and a second spray arm 4, with the first spray arm 2 serving as the main spray arm 2 and the second spray arm 4 serving as the auxiliary spray arm.
[0026] The first spray arm 2 has a flow channel 21 inside, and the first spray arm 2 can rotate about a vertically extending axis. The first spray arm 2 is provided with spray holes 22 that communicate with the flow channel 21. This part can adopt existing technology, and will not be described in detail here.
[0027] The housing 1 is also provided with a bowl basket 3 and a baffle 31. The bowl basket 3 and the spray assembly are arranged vertically in sequence. In this embodiment, the bowl basket 3 is located above the spray assembly.
[0028] The baffle 31 is provided on the bowl basket 3. The bowl basket 3 is generally a hollow structure made of ribs. One of the ribs can be lengthened to form the baffle 31. The structure is simple and will not interfere with the entry and exit of the bowl basket 3.
[0029] The first spray arm 2 is provided with a limiting member 4 that can move relative to it. The limiting member 4 can move to a state of abutting or disengaging from the stop member 31 of the cleaning machine. The stop member 31 is located on the movement path of the limiting member 4 as the first spray arm 2 rotates.
[0030] In this embodiment, the first spray arm 2 is provided with a through hole 23, a block 41 and an elastic element 5. The elastic element 5 is a spring, one end of which is connected to the block 41 and the other end of which is connected to the first spray arm 2.
[0031] The through hole 23 is connected to the flow channel 21. The plug 41 is movably embedded in the through hole 23. The limiting member 4 is provided on the outer wall surface of the plug 41. The plug 41 can move outward to the first position under the action of water flow, such as... Figure 5 As shown, in this state, the limiting member 4 abuts against the stop member 31; the blocking block 41 can move inward to the second position under the action of the elastic member 5, as shown. Figure 6 As shown, in this state, the limiting member 4 and the stop member 31 are disengaged from each other; regardless of whether the blocking block 41 is in the first position or the second position, the blocking block 41 always blocks the through hole 23. "Inner" refers to the side closer to the flow channel 21, and "outer" refers to the side farther away from the flow channel 21.
[0032] During the washing process, in the high-intensity wash phase, the water flow head in the channel 21 is at its maximum. Under the impact of the water flow, the block 41 can move outward, causing the limiting member 4 to move outward and block the stop member 31. The first spray arm 2 cannot rotate, allowing for targeted cleaning of the tableware at that location. When the first spray arm 2 needs to continue rotating, the washing power is simply reduced. After the head is reduced, the block 41 will move inward under the tension of the elastic member 5, and the limiting member 4 will move inward accordingly, disengaging from the stop member 31. The first spray arm 2 can then continue rotating for cleaning. Therefore, this application only requires a simple and low-cost elastic member 5 in conjunction with the water flow to achieve the movement of the limiting member 4. The structure is simple and the cost is low.
[0033] In this embodiment, the limiting member 4 extends horizontally, and the stop member 31 extends vertically.
[0034] The side wall from which the water supply of the first spray arm 2 is sprayed is called the spray wall 20. In this embodiment, the spray wall 20 is the top wall of the first spray arm 2. Of course, the spray wall 20 can also be the bottom wall of the first spray arm 2.
[0035] The first spray arm 2 is strip-shaped and divided into a first part a and a second part b along its length. In this embodiment, the water inlet 24 of the first spray arm 2 is located in its central part, and the first part a and the second part b are located on both sides of the water inlet 24, with the water inlet 24 as the boundary.
[0036] Both the nozzle 22 and the through hole 23 are located on the first part a. A rotatable second spray arm 6 is provided on the second part b. The second spray arm 6 is connected to the flow channel 21 and rotates about a vertically extending axis. The nozzle of the second spray arm 6 is located at its top. The structure of the second spray arm 6 can adopt existing technology, and it can also adopt existing methods of rotation under hydraulic action. In this embodiment, the second spray arm 6 is installed on the spray wall 20.
[0037] When the limiting member 4 and the stop member 31 abut against each other, and the first spray arm 2 cannot rotate, the spray holes 22 on the first spray arm 2 can perform fixed-point cleaning on the tableware and / or fruits and vegetables corresponding to the first part a, while the second spray arm 6 can rotate and spray clean the tableware and / or fruits and vegetables corresponding to the second part b. During cleaning, tableware and / or fruits and vegetables with a high degree of dirt are placed in the cleaning position corresponding to the first part a, and tableware and / or fruits and vegetables with a low degree of dirt are placed in the cleaning position corresponding to the second part b.
Claims
1. A spray assembly for a cleaning machine, comprising a first spray arm (2) having an internal flow channel (21), the first spray arm (2) being rotatable about a vertically extending axis, and having spray holes (22) communicating with the flow channel (21), characterized in that, The first spray arm (2) is provided with a limiting member (4) that can move relative to it. The limiting member (4) can move to a state of abutting or disengaging from the stop (31) of the cleaning machine. The stop (31) is located on the movement path of the limiting member (4) as the first spray arm (2) rotates.
2. The spray assembly according to claim 1, characterized in that: The first spray arm (2) is also provided with a through hole (23), a plug (41) and an elastic element (5). The through hole (23) is connected to the flow channel (21). The plug (41) is movably embedded in the through hole (23). The limiting element (4) is provided on the outer wall surface of the plug (41). The plug (41) can move outward to the first position under the action of water flow. In this state, the limiting element (4) abuts against the stop (31). The plug (41) can move inward to the second position under the action of the elastic element (5). In this state, the limiting element (4) and the stop (31) disengage. Regardless of whether the plug (41) is in the first position or the second position, the plug (41) always blocks the through hole (23).
3. The spray assembly according to claim 2, characterized in that: The elastic element (5) is a spring, one end of which is connected to the block (41) and the other end of which is connected to the first spray arm (2).
4. The spray assembly according to any one of claims 1 to 3, characterized in that: The first spray arm (2) is strip-shaped and divided into a first part (a) and a second part (b) along its length. The spray hole (22) and the through hole (23) are both provided on the first part (a). The second part (b) is provided with a rotatable second spray arm (6). The second spray arm (6) is connected to the flow channel (21) and rotates around the vertically extending axis.
5. A cleaning machine, characterized in that, Includes a housing (1) and a spray assembly as described in any one of claims 1 to 4, wherein the spray assembly is disposed in the housing (1), and the housing (1) is further provided with a stop (31), wherein the stop (31) is located on the movement trajectory of the limiting member (4) as the first spray arm (2) rotates.
6. The cleaning machine according to claim 5, characterized in that: The box (1) is also provided with a bowl basket (3), and the bowl basket (3) and the spray assembly are arranged vertically in sequence, and the baffle (31) is provided on the bowl basket (3).
7. The cleaning machine according to claim 5, characterized in that: The limiting member (4) extends horizontally, and the stop member (31) extends vertically.