Spraying structure and dish washing machine

Abstract

The spraying structure comprises a water inlet pipeline and at least two spraying arms communicated with the water inlet pipeline, a control structure for controlling a water path to supply water to the spraying arms is arranged on the water inlet pipeline, and the control structure comprises at least two shielding parts which are arranged in the water inlet pipeline in a mutually matched mode. The at least one shielding part is movably arranged; and the driving piece is arranged on the water inlet pipeline and drives the at least one shielding part to move to enable the at least one spraying arm to spray. Through the arrangement, all the shielding parts cooperatively control at least one spraying arm to spray in the water inlet pipeline, an electromagnetic valve does not need to be additionally arranged on the water inlet pipeline to control spraying of the spraying arm, and the assembling difficulty between the water inlet pipeline and the control structure can be reduced; and the situation of water leakage at the joint of the water inlet pipeline and the control structure can be avoided.

Description

Technical Field

[0001] This invention belongs to the field of household appliance technology, specifically, it relates to a spray structure and a dishwasher. Background Technology

[0002] As living standards improve, people have increasingly higher demands for quality of life, leading to higher expectations for product quality, performance, user-friendliness, and intelligent operation. Dishwashers, which automatically clean bowls, chopsticks, plates, dishes, knives, forks, and other tableware, reduce labor intensity, improve work efficiency, and enhance hygiene. Therefore, dishwashers, as an excellent product, are gradually entering people's lives. The spray arms of a dishwasher, as one of its key components, are used to spray water onto the tableware to clean it.

[0003] Existing dishwashers feature multiple spray arms integrated into a single water inlet pipe. These arms, fed by water, simultaneously spray water onto the dishes, increasing the spray area and improving cleaning effectiveness. However, when washing a small number of dishes, simultaneous spraying by multiple arms wastes water while maintaining cleaning efficiency. Current technology addresses this by adding a solenoid valve to the water inlet pipe to control either simultaneous spraying by all arms or single-arm spraying. This reduces water waste when washing a small number of dishes while maintaining cleaning effectiveness. However, the solenoid valve is mounted on the water inlet pipe by connecting two sections of the pipe to its inlet and outlet, respectively. This increases the difficulty of assembling the solenoid valve with the water inlet pipe and can lead to leaks due to insufficient sealing at the connection points. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a spray structure and dishwasher. By driving at least one shielding part to move inside the water inlet pipe, at least one spray arm sprays water. This achieves the goal of all shielding parts cooperating to control at least one spray arm to spray water inside the water inlet pipe, eliminating the need to add a solenoid valve to the water inlet pipe to control the spray arm. This reduces the assembly difficulty between the water inlet pipe and the control structure and avoids water leakage at the connection between the water inlet pipe and the control structure.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by the present invention is as follows:

[0006] This invention provides a spray structure, including: a water inlet pipe, at least two spray arms connected to the water inlet pipe, and a control structure for controlling the water supply to the spray arms on the water inlet pipe.

[0007] The control structure includes:

[0008] At least two shielding parts are provided in the water inlet pipe in cooperation with each other, wherein at least one shielding part is movable;

[0009] A drive unit, located on the water inlet pipe, drives at least one shielding part to move so that at least one spray arm sprays water.

[0010] Furthermore, all shielding components are located within the water inlet pipe between the two spray arms;

[0011] The driving component drives at least one blocking part to reciprocate to open and close the water inlet pipe, so that all spray arms or a single spray arm sprays.

[0012] Furthermore, at least one of the shielding parts is magnetic;

[0013] The driving component is an electromagnetic part located outside the water inlet pipe;

[0014] When the electromagnetic part is energized, it magnetically attracts at least one blocking part, causing at least one blocking part to move and disconnect the water inlet pipe;

[0015] When the electromagnetic part is de-energized, it releases the magnetic attraction from at least one shielding part, causing at least one shielding part to move in the opposite direction to connect the water inlet pipe.

[0016] Furthermore, the control structure includes a first blocking part and a second blocking part;

[0017] A portion of the first shielding part is fixed and sealed to the inner wall of the inlet pipe along the circumferential direction, while the other portion is provided with a gap to the inner wall of the inlet pipe to define the water outlet passage.

[0018] Alternatively, the first shielding part is annular, with its outer periphery fixed and sealed to the inner wall of the water inlet pipe, and its inner periphery forming a water passage.

[0019] The second shielding part is movable relative to the first shielding part, and the water inlet pipe is switched on or off by switching the water passage.

[0020] Furthermore, the second shielding part is hinged to the first shielding part;

[0021] The second shielding part flips over the first shielding part and then passes through the water channel;

[0022] The second shielding part flips in the opposite direction to the first shielding part, disconnecting the water passage.

[0023] Furthermore, the second shielding part is hinged to the upper part of the first shielding part, and the electromagnetic part is provided on the outer wall of the water inlet pipe above the first shielding part.

[0024] When the electromagnetic part is energized, it magnetically attracts the second blocking part, causing the second blocking part to flip upward and abut against the upper part of the inner wall of the water inlet pipe, thus disconnecting the water passage.

[0025] When the electromagnetic part is de-energized, it releases its magnetic attraction from the second shielding part, causing the second shielding part to flip downwards and abut against the lower part of the inner wall of the water inlet pipe, allowing water to pass through.

[0026] Furthermore, an auxiliary electromagnetic part is provided on the outer wall of the water inlet pipe below the first shielding part, which is opposite to the electromagnetic part;

[0027] When the electromagnetic part is de-energized and the auxiliary electromagnetic part is energized, the auxiliary electromagnetic part magnetically attracts the second blocking part, causing the second blocking part to flip downwards.

[0028] When the electromagnetic part is energized and the auxiliary electromagnetic part is de-energized, the electromagnetic part magnetically attracts the second blocking part, causing the second blocking part to flip upward.

[0029] Furthermore, the radial cross-section of the water inlet pipe is circular;

[0030] The first and second shielding parts are arc-shaped plates that match the inner wall of the water inlet pipe;

[0031] The hinge point between the second shield and the first shield is no higher than half the radial height of the inlet pipe.

[0032] Furthermore, the lower part of the second shielding portion is provided with a hinge shaft extending radially;

[0033] The spacing between the hinge axis and part of the second shielding part forms an avoidance gap;

[0034] A shaft hole is provided at the hinge of the first and second shielding parts;

[0035] The hinge shaft is inserted into the shaft hole and rotates within the shaft hole;

[0036] The wall of the shaft hole is inserted into the clearance notch.

[0037] The present invention also provides a dishwasher, including an inner tub, wherein the inner tub is provided with the spray structure provided in the above-mentioned technical solution.

[0038] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0039] By driving at least one shielding part to move inside the water inlet pipe to make at least one spray arm spray, all shielding parts can cooperate to control at least one spray arm to spray inside the water inlet pipe. This eliminates the need to add a solenoid valve to the water inlet pipe to control the spraying of the spray arm, thereby reducing the assembly difficulty between the water inlet pipe and the control structure and preventing water leakage at the connection between the water inlet pipe and the control structure.

[0040] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0041] The accompanying drawings, as part of this invention, are provided to further illustrate the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention, but do not constitute an undue limitation thereof. Clearly, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0042] Figure 1 This is a schematic diagram of the spray structure provided in an embodiment of the present invention;

[0043] Figure 2 This is a left view of the spray structure provided in an embodiment of the present invention;

[0044] Figure 3 for Figure 2 AA cross-section diagram;

[0045] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0046] Figure 5 This is a schematic diagram of the first shielding part inside the first pipe provided in an embodiment of the present invention;

[0047] Figure 6 This is a schematic diagram of the second shielding part provided in an embodiment of the present invention;

[0048] Figure 7 This is a schematic diagram of the water inlet pipe provided in an embodiment of the present invention.

[0049] Icons: 1-Inlet pipe; 11-First pipe; 12-Second pipe; 13-Inlet; 2-Spray arm; 2a-First spray arm; 2b-Second spray arm; 21-Protrusion; 22-Hook hole; 23-Mounting part; 24-Connecting part; 25-Abutting protrusion; 26-Buffer hole; 3-Control structure; 31-Shielding part; 31a-First shielding part; 31b-Second shielding part; 32-Shaft hole; 32a-Hole section; 33-Hinge shaft; 34-Avoidance notch; 34a-Notch part; 35-Drive component; 351-Electromagnetic part; 351a-Electromagnet; 352-Auxiliary electromagnetic part; 352a-Auxiliary electromagnet; 36-Protrusion; 4-Water passage; 5-Sealing ring.

[0050] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the invention in any way, but rather to illustrate the concept of the invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0052] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 limiting this invention.

[0053] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 electrical 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 invention based on the specific circumstances.

[0054] like Figure 1-7 As shown, the present invention provides a spray structure, including: a water inlet pipe 1, at least two spray arms 2 connected to the water inlet pipe 1, and a control structure 3 on the water inlet pipe 1 for controlling the water supply to the spray arms 2.

[0055] The control structure 3 includes at least two shielding parts 31 that are mutually cooperating in the water inlet pipe 1, wherein at least one shielding part 31 is movably disposed;

[0056] A drive unit 35 is provided on the water inlet pipe 1 to drive at least one shielding part 31 to move so that at least one spray arm 2 sprays water.

[0057] In the embodiments of the present invention, through the above-mentioned arrangement, all the shielding parts 31 cooperate to control at least one spray arm 2 to spray inside the water inlet pipe 1, without the need to add a solenoid valve to the water inlet pipe 1 to control the spray of the spray arm 2. This can reduce the assembly difficulty between the water inlet pipe 1 and the control structure 3, and can avoid water leakage at the connection between the water inlet pipe 1 and the control structure 3.

[0058] The spray structure of this application can be used to spray tableware in a dishwasher, to spray clothes in a washing machine, etc.

[0059] At least two spray arms 2 are provided on the water inlet pipe 1 and connected to the water inlet pipe 1. In the at least two spray arms 2, each spray arm 2 can be an upper spray arm, a lower spray arm or a side spray arm.

[0060] Specifically, the first end of the water inlet pipe 1 is provided with a water inlet 13, and the second end is a closed end; at least two water outlets are provided on the outer wall of the water inlet pipe 1 located between the first end and the second end of the water inlet pipe 1; each spray arm 2 is hollow inside to form a spray chamber, and spray holes are provided on the spray chamber; each water outlet is connected to the corresponding spray chamber; the cleaning water entering the water inlet pipe 1 from the water inlet 13 enters the corresponding spray chamber through the at least two water outlets and is sprayed onto the tableware through the spray holes.

[0061] It should be noted that the spray arm 2 in this application is either a moving spray arm or a stationary spray arm. If the spray arm 2 is a moving spray arm, it will be driven to rotate when water is sprayed from the spray nozzle.

[0062] At least one blocking part 31 is movable relative to other blocking parts 31, and the movement can be a flipping movement or a linear movement; the driving method of the driving member 35 can be motor drive, electromagnetic drive, cylinder drive, etc.

[0063] When washing dishes to be cleaned, the drive unit 35 drives at least one shielding part 31 to move, which enables a single spray arm 2 to spray, multiple spray arms 2 to spray, or all spray arms 2 to spray, thus enriching the spraying forms of the spraying structure of this application.

[0064] In an embodiment of the present invention, all shielding parts 31 are disposed in the water inlet pipe 1 between the two spray arms 2;

[0065] The drive unit 35 drives at least one shielding part 31 to reciprocate to switch the water inlet pipe 1 on and off, so that all spray arms 2 spray or a single spray arm 2 sprays.

[0066] In specific embodiments of the present invention, the water inlet pipe 1 extends horizontally, and two spray arms 2 are provided at the bottom of the water inlet pipe 1. The two spray arms 2 are a first spray arm 2a and a second spray arm 2b, respectively. The first spray arm 2a and the second spray arm 2b are lower spray arms. The first spray arm 2a is located near the water inlet 13. The bottom of the water inlet pipe 1 is provided with a first water inlet and a second water inlet. The first water inlet is connected to the first spray arm 2a, and the second water inlet is connected to the second spray arm 2b.

[0067] When there are few dishes to be cleaned or when a specific area of ​​dishes is being sprayed, at least one shielding part 31 is driven to move, disconnecting the water inlet pipe 1. The cleaning water entering the water inlet pipe 1 from the water inlet 13 is blocked by all the shielding parts 31 and can only enter the spray chamber of the second spray arm 2b through the first water outlet. It cannot enter the spray chamber of the second spray arm 2b through the second water inlet. Only the spray holes of the first spray arm 2a can spray the dishes, so that the spray structure achieves a single spray mode.

[0068] When there are many dishes to be cleaned or the dishes are fully covered by the spray, the drive unit 35 drives at least one shielding part 31 to move, connecting the water inlet pipe 1. The cleaning water entering the water inlet pipe 1 from the water inlet 13 enters the spray chamber of the first spray arm 2a and the spray chamber of the second spray arm 2b through the first water outlet and the second water inlet, respectively. This allows the spray holes of the first spray arm 2a and the second spray arm 2b to spray the dishes simultaneously, enabling the spray structure to achieve a dual-spray mode. The system automatically switches between the dual-spray mode and the single-spray mode according to the number of dishes to be cleaned, improving water resource utilization while ensuring cleaning effect. The system acquires images of the dishes through a camera device installed in the inner tank, thereby obtaining the number of dishes to be cleaned. Based on the number of dishes to be cleaned, the spray mode of the spray structure is determined.

[0069] In embodiments of the present invention, at least one shielding part 31 is magnetic;

[0070] The driving component 35 is an electromagnetic part 351 located outside the water inlet pipe 1;

[0071] When the electromagnetic part 351 is energized, it magnetically attracts at least one blocking part 31, causing at least one blocking part 31 to move and disconnect the water inlet pipe 1;

[0072] When the electromagnetic part 351 is de-energized, it is released from magnetic attraction with at least one shielding part 31, causing at least one shielding part 31 to move in the opposite direction to connect the water inlet pipe 1.

[0073] In the embodiments of the present invention, the driving member 35 drives at least one electromagnetic part 351 with magnetism to move by electromagnetic driving, which makes the movement of the shielding part 31 possible by non-contact magnetic force control, thereby improving the reliability and durability of the spray structure.

[0074] The non-contact magnetic control of the movement of the shielding part 31 allows the electromagnetic part 351 to be located outside the water inlet pipe 1. The advantage of the electromagnetic part 351 being located outside the water inlet pipe 1 is that it does not come into contact with the cleaning water inside the water inlet pipe 1, preventing the cleaning water from corroding the electromagnetic part 351. It also allows the movement of the shielding part 31 to be controlled without penetrating the water inlet pipe 1, simplifies the manufacturing process of the water inlet pipe 1, prevents leakage of the cleaning water inside the water inlet pipe 1, and allows for easy connection to power supply and control circuits.

[0075] When the electromagnetic part 351 is energized, the electromagnetic part 351 generates a magnetic force to attract the magnetic blocking part 31 to move, so that at least one blocking part 31 disconnects the water inlet pipe 1 and all blocking parts 31 prevent water from flowing to the second spray arm 2b.

[0076] When the electromagnetic part 351 is de-energized, the magnetic force disappears, the electromagnetic part 351 and the blocking part 31 are released from magnetic attraction, and the blocking part 31 can move in the opposite direction under its own gravity or other reset mechanism to reconnect the water inlet pipe 1.

[0077] By controlling the on / off state of the electromagnetic unit 351, the position of the shielding part 31 can be precisely controlled, thereby enabling flexible switching of the spraying mode to meet the spraying needs of different scenarios. The design scheme of using magnetism and the electromagnetic unit 351 to control the movement of the shielding part 31 provides an efficient, reliable and flexible water flow control mechanism for the spraying structure.

[0078] To achieve the above functions, a precise control system is needed to monitor water flow demand, receive user commands, and activate or deactivate the electromagnetic unit 351 accordingly. This control system may include components such as sensors, microprocessors, and relays, which work together to ensure the reliable disconnection and connection of the water inlet pipe 1.

[0079] In embodiments of the present invention, the control structure includes a first blocking part 31a and a second blocking part 31b;

[0080] A portion of the first shielding part 31a is fixed and sealed to the inner wall of the water inlet pipe 1 along the circumferential direction, while the other portion is provided with a gap between the water inlet pipe 1 and the inner wall to define the water passage 4.

[0081] In an embodiment of the present invention, in this spray structure, the shielding part 31 is further divided into a first shielding part 31a and a second shielding part 31b, which cooperate to control the water flow in the water inlet pipe 1.

[0082] The circumferential direction refers to the circumferential direction of the water inlet pipe 1; the first part of the first shielding part 31a along the circumferential direction is fixed to the inner wall of the water inlet pipe 1 in the following ways: the first part of the first shielding part 31a along the circumferential direction is integrally formed with the water inlet pipe 1; the first part of the first shielding part 31a along the circumferential direction is fixed to the water inlet pipe 1 by screwing; or the first shielding part 31a is fixed to the water inlet pipe 1 by welding; preferably, in this application, a portion of the first shielding part 31a along the circumferential direction is integrally formed with the water inlet pipe 1;

[0083] A portion of the first shielding part 31a is sealed to the inner wall of the water inlet pipe 1 along the circumferential direction to prevent water from leaking from the connection between the first shielding part 31a and the water inlet pipe 1. The other portion maintains a certain distance from the inner wall of the water inlet pipe 1. This distance defines the water passage 4. When water flows through the water inlet pipe 1, it flows through this water passage 4 to the second spray arm 2b.

[0084] The main function of the first shielding part 31a is to serve as a water flow guide structure, defining the path of the water flow through the fixed part of the first shielding part 31a and the part that is spaced apart from the inner wall.

[0085] The second shielding part 31b is movable relative to the first shielding part 31a. This mobility allows the second shielding part 31b to move between different positions, enabling the water channel 4 to be opened or closed as needed, thereby achieving flexible control of different spray arms 2.

[0086] The combined design of the first shielding part 31a and the second shielding part 31b provides an efficient and reliable water flow control mechanism for the spray structure. By adjusting the position of the second shielding part 31b, the direction of water flow and the spray range can be flexibly controlled to meet the spraying needs in different scenarios. This design not only improves the flexibility and efficiency of the spray structure but also reduces maintenance costs and failure rates.

[0087] In another embodiment of the present invention, the first shielding part 31a is annular, with its outer periphery fixed and sealed to the inner wall of the water inlet pipe 1, and its inner periphery forming a water passage 4; the first shielding part 31a is designed to be annular, with its outer periphery fixed and sealed to the inner wall of the water inlet pipe 1, while its inner periphery forms an open area, which is the water passage 4, through which water can flow to the second spray arm 2b via the inner periphery area of ​​this annular shielding part 31.

[0088] Furthermore, the first shielding part 31a is formed by extending radially upward from the bottom of the water inlet pipe 1; the radial direction refers to the radial direction of the water inlet pipe 1; taking the water inlet 13 at the left end of the water inlet pipe 1 as an example, the first shielding part 31a is symmetrically sealed to the inner wall of the water inlet pipe 1 on both the front and rear sides, and the upper side of the first shielding part 31a is provided with a gap to form a water passage 4, which guides the cleaning water to flow from the upper part of the inside of the water inlet pipe 1 to the second spray arm 2b, thereby improving the stability of the cleaning water flow.

[0089] In an embodiment of the present invention, the second shielding part 31b is hinged to the upper part of the first shielding part 31a, and the electromagnetic part 351 is disposed on the outer wall of the water inlet pipe 1 above the first shielding part 31a.

[0090] When the electromagnetic part 351 is energized, it magnetically attracts the second blocking part 31b, causing the second blocking part 31b to flip upward and abut against the upper part of the inner wall of the water inlet pipe 1, thus disconnecting the water passage 4.

[0091] When the electromagnetic part 351 is de-energized, it releases its magnetic attraction from the second shielding part 31b, causing the second shielding part 31b to flip downwards and abut against the lower part of the inner wall of the water inlet pipe 1, and then pass through the water channel 4.

[0092] In an embodiment of the present invention, automatic control of the water flow channel is achieved through the magnetic interaction between the electromagnetic part 351 and the second shielding part 31b.

[0093] When the electromagnetic part 351 is energized, the electromagnetic part 351 generates a magnetic force, which attracts the second blocking part 31b, causing the second blocking part 31b to flip upward. This flipping changes the position of the second blocking part 31b, thereby disconnecting the water passage 4 that allows water to flow through.

[0094] When the electromagnetic part 351 is de-energized, the magnetic force generated by the electromagnetic part 351 disappears and is no longer magnetically attracted to the second blocking part 31b. The second blocking part 31b is no longer attracted by the magnetic force and will flip downward due to gravity or other reset mechanisms. Flipping downward will restore its initial position, thereby allowing water to flow through the water passage 4.

[0095] Furthermore, an auxiliary electromagnetic part 352, which is opposite to the electromagnetic part 351, is provided on the outer wall of the water inlet pipe 1 below the first shielding part 31a.

[0096] When the electromagnetic part 351 is de-energized and the auxiliary electromagnetic part 352 is energized, the auxiliary electromagnetic part 352 magnetically attracts the second blocking part 31b, causing the second blocking part 31b to flip downwards.

[0097] When the electromagnetic part 351 is energized and the auxiliary electromagnetic part 352 is de-energized, the electromagnetic part 351 magnetically attracts the second blocking part 31b, causing the second blocking part 31b to flip upward.

[0098] The auxiliary electromagnetic unit 352 is installed on the outer wall of the water inlet pipe 1 below the first shielding part 31a. It is opposite to the electromagnetic unit 351 and can also generate magnetic force to attract or release the second shielding part 31b.

[0099] When the electromagnetic unit 351 is de-energized, it does not generate magnetic force and therefore has no attraction to the second shielding part 31b. The second shielding part 31b flips downwards and passes through the water channel 4. During the process of water flowing through the water channel 4 to the second spray arm 2b, the impact force of the water flow will cause the second shielding part 31b to shake, resulting in a change in the position of the second shielding part 31b. Alternatively, the second shielding part 31b may not flip downwards to its initial position. Both of these situations will affect the normal flow and direction of the cleaning water. To prevent the above situations from occurring, when the spray structure switches from a single spray mode to a dual spray mode, the electromagnetic unit 351 is de-energized while the auxiliary electromagnetic unit 352 is energized, so that the second shielding part 31b is quickly fixed in its initial position, increasing the reliability of water flow control.

[0100] During the switching process from a dual-spray mode to a dual-spray mode, the auxiliary electromagnetic unit 352 is de-energized while the electromagnetic unit 351 is energized, causing the second blocking part 31b to flip upwards and disconnect the water passage 4. The electromagnetic unit 351 is an electromagnet 351a, and the auxiliary electromagnetic unit 352 is an auxiliary electromagnet 352a. The electromagnet 351a can quickly generate and lose magnetic force, so the flipping speed of the second blocking part 31b is very fast, which can meet the immediate needs of water flow control.

[0101] In an embodiment of the present invention, the radial cross-section of the water inlet pipe 1 is circular;

[0102] The first shielding part 31a and the second shielding part 31b are arc-shaped plates adapted to the inner wall of the water inlet pipe 1;

[0103] The hinge point between the second shielding part 31b and the first shielding part 31a is not higher than half the radial height of the water inlet pipe 1.

[0104] In an embodiment of the present invention, the radial cross-section of the water inlet pipe 1 is circular, which means that the water flows along a circular path inside the pipe. This design is conducive to the smooth and uniform distribution of the water flow.

[0105] Both the first blocking part 31a and the second blocking part 31b are plate-shaped, which means that the two blocking parts 31 have a relatively large area and a certain rigidity, and can effectively block or guide the water flow. For example, the second blocking part 31b can be an iron plate, a steel plate, etc. The iron plate or steel plate can give the second blocking part 31b sufficient mechanical strength and flexibility so that it can be flipped up and down.

[0106] The second shielding part 31b flips upward and downward on the first shielding part 31a. The second shielding part 31b flips upward to abut against the upper part of the inner wall of the water inlet pipe 1, which can ensure that the water flow is completely blocked when needed. The second shielding part 31b flips downward to abut against the lower part of the inner wall of the water inlet pipe 1, which can ensure that the water flow passes smoothly when allowed.

[0107] The hinge is located no higher than half the radial height of the water inlet pipe 1, which ensures that when the radial cross-section of the water inlet pipe 1 is circular, the second shielding part 31b can be flipped up and down above the first shielding part 31a. Furthermore, the relatively low position of the hinge increases the stability of the second shielding part 31b during the flipping process and reduces swaying or jamming caused by the shift of the center of gravity.

[0108] Because the hinge is low, the second shield 31b can more effectively block the water flow when the water passage 4 is disconnected; it also makes it easier to flip down when the water passage 4 needs to be connected, because the second shield 31b only needs to be flipped at a small angle to leave the inner wall of the pipe.

[0109] In an embodiment of the present invention, the lower part of the second shielding part 31b is provided with a hinge shaft 33 extending radially;

[0110] A clearance notch 34 is formed by a gap between the hinge shaft 33 and part of the second shielding part 31b;

[0111] A shaft hole 32 is provided at the hinge of the first shielding part 31a and the second shielding part 31b.

[0112] The hinge shaft 33 is inserted into the shaft hole 32 and rotates within the shaft hole 32;

[0113] The wall of the shaft hole 32 is inserted into the clearance notch 34.

[0114] In an embodiment of the present invention, the radial direction refers to the radial direction of the water inlet pipe 1;

[0115] Specifically, taking the water inlet 13 at the left end of the water inlet pipe 1 as an example, the second blocking part 31b is hinged to the left side of the first blocking part 31a, so that the second hinged part can be flipped up and down on the left side of the second blocking part 31b.

[0116] The lower part of the second shielding part 31b is provided with a hinge shaft 33. The hinge shaft 33 is a key component for the second shielding part 31b to be hinged with the first shielding part 31a. It allows the second shielding part 31b to rotate up and down around this shaft, thereby changing the position of the second shielding part 31b in the water inlet pipe 1.

[0117] The hinge shaft 33 is the fulcrum for the second blocking part 31b to flip, allowing the second blocking part 31b to flip up and down within a certain range; the first blocking part 31a is provided with a radially extending shaft hole 32, which is designed to accommodate the hinge shaft 33 of the second blocking part 31b, allowing the hinge shaft 33 to rotate freely within the shaft hole 32.

[0118] The outer peripheral wall of the hinge shaft 33 is not completely tightly connected to the second shielding part 31b. A part of the hinge shaft 33 is connected to the second shielding part 31b along the radial direction of the water inlet pipe 1, while the other part maintains a certain distance from the second shielding part 31b. This distance forms a clearance notch 34. The clearance notch 34 is designed to avoid unnecessary interference or collision with the hole wall of the shaft hole 32 when the hinge shaft 33 is inserted into the shaft hole 32 and rotates, and to allow the second shielding part 31b to abut against the inner wall of the water inlet pipe 1 when the water passage 4 is connected or disconnected.

[0119] The hinge shaft 33 is inserted into the shaft hole 32 of the first blocking part 31a and rotates freely within the shaft hole 32. This insertion and rotation method realizes the hinged connection between the first blocking part 31a and the second blocking part 31b. At the same time, the hole wall of the shaft hole 32 is inserted into the clearance notch 34, which not only enhances the stability of the hinge structure, but also restricts the lateral movement of the hinge shaft 33 within the shaft hole 32, ensuring the reliability and durability of the hinge structure.

[0120] Furthermore, the shaft hole 32 includes two hole segments 32a distributed radially at intervals;

[0121] The connection between the hinge shaft 33 and the second blocking part 31b divides the clearance notch 34 into two notches 34a;

[0122] The two ends of the hinge shaft 33 are respectively inserted into the corresponding hole section 32a, and the hole wall of the hole section 32a is inserted into the corresponding notch 34a.

[0123] This design ensures that the hinge shaft 33 can be stably installed in the shaft hole 32 and can rotate around its axis; and ensures that the second shield 31b can abut against the inner wall of the water inlet pipe 1 when the water passage 4 is connected or disconnected.

[0124] Taking the inlet 13 at the left end of the inlet pipe 1 as an example, a protrusion 36 is provided on the left side of the first shielding part 31a. The protrusion 36 extends forward to abut against the front side of the inner wall of the inlet pipe 1, and extends backward to abut against the rear side of the inner wall of the inlet pipe 1. The shaft hole 32 is provided on the protrusion 36, extending from the front side to the rear side. The middle part of the left side of the shaft hole 32 is open, and the left and right ends of the left side of the shaft hole 32 are closed to form the hole segment 32a.

[0125] In an embodiment of the present invention, the water inlet pipe 1 includes a first pipe 11 and a second pipe 12. The first end of the first pipe 11 is provided with a water inlet 13, and the water inlet 13 of the first pipe 11 is the water inlet 13 of the water inlet pipe 1. The second end of the first pipe 11 is detachably connected to the first end of the second pipe 12, and the second end of the second pipe 12 is a closed end.

[0126] All drive units of this application are located inside the first pipe 11, and drive components 35 are located on the first pipe 11;

[0127] The first spray arm 2a is disposed on the first pipe 11, and the second spray arm 2b is disposed on the second pipe 12. Preferably, the second spray arm 2b is close to the second end of the water inlet pipe 1 to increase the spray area formed by the first spray arm 2a and the second spray arm 2b.

[0128] The second end of the first pipe 11 and the first end of the second pipe 12 are detachable in the following manner:

[0129] The outer peripheral wall of the first pipe 11 extends radially to form a plurality of abutting protrusions 25 spaced apart along the axial direction. Preferably, the abutting protrusions 25 are annular and arranged in a circle around the outer peripheral wall of the first pipe 11. A plurality of locking protrusions 21 spaced apart along the circumferential direction are provided on the outer peripheral wall of the first pipe 11 between two abutting protrusions 25.

[0130] The first end of the second pipe 12 is provided with a mounting part 23 coaxial with the second pipe 12. The mounting part 23 is a cylindrical shape with open ends. The radial dimension of the mounting part 23 is larger than the radial dimension of the second pipe 12. The end of the second pipe 12 is connected to the end of the mounting part 23 via an annular connecting part 24. The mounting part 23 is provided with a plurality of buffer holes 26 extending axially. The plurality of buffer holes 26 are distributed circumferentially. One end of the buffer hole 26 is closed and the other end is open and communicates with the opening of the mounting part 23 facing the first pipe 11. A locking hole 22 is provided on the outer peripheral wall of the mounting part 23 between two buffer holes.

[0131] The second end of the first pipe 11 extends into the mounting part 23. Through the deformation of the buffer hole 26, the locking protrusion 21 is locked into the locking hole 22, realizing the locking between the second end of the first pipe 11 and the first end of the second pipe 12. This achieves a detachable connection between the second end of the first pipe 11 and the first end of the second pipe 12. By disassembling the second pipe 12 from the first pipe 11, the first pipe 11 and the second pipe 12 can be separated, facilitating cleaning of the first pipe 11 and the second pipe 12. On the other hand, the opening of the second end of the first pipe 11 is exposed, allowing the second shielding part 31b to extend into the first pipe 11 and be installed on the first shielding part 31a. The abutting protrusion 25 abuts against the inner peripheral wall of the mounting part 23, which can increase the tightness of the locking between the second end of the first pipe 11 and the first end of the second pipe 12, preventing water leakage caused by shaking between the first pipe 11 and the second pipe 12.

[0132] Furthermore, an annular sealing ring 5 is clamped between the end face of the connecting part 24 facing the first pipe 11 and the second end of the first pipe 11 to prevent water from leaking from the gap between the end face of the first pipe 11 and the second end of the first pipe 11.

[0133] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A spray structure, comprising: The water inlet pipe (1), at least two spray arms (2) connected to the water inlet pipe (1), and a control structure (3) on the water inlet pipe (1) for controlling the water supply to the spray arms (2) are characterized in that, The control structure (3) includes: At least two shielding parts (31) are provided in the water inlet pipe (1) in a mutually cooperating manner, wherein at least one shielding part (31) is movably provided; A drive unit (35) is provided on the water inlet pipe (1) to drive at least one shielding part (31) to move so that at least one spray arm (2) sprays water.

2. The spray structure according to claim 1, characterized in that, All shielding parts (31) are located in the water inlet pipe (1) between the two spray arms (2); The drive unit (35) drives at least one shielding part (31) to reciprocate to switch the water inlet pipe (1) on and off, so that all spray arms (2) spray or a single spray arm (2) sprays.

3. The spray structure according to claim 2, characterized in that, At least one shielding part (31) is magnetic; The driving component (35) is an electromagnetic part (351) located outside the water inlet pipe (1); When the electromagnetic part (351) is energized, it magnetically attracts at least one blocking part (31), causing at least one blocking part (31) to move and disconnect the water inlet pipe (1); When the electromagnetic part (351) is de-energized, it releases the magnetic attraction from at least one shielding part (31), causing at least one shielding part (31) to move in the opposite direction to connect the water inlet pipe (1).

4. The spray structure according to any one of claims 1-3, characterized in that, The control structure (3) includes a first shielding part (31a) and a second shielding part (31b); A portion of the first shielding part (31a) is fixed and sealed to the inner wall of the water inlet pipe (1) along the circumferential direction, while the other portion is provided with a spaced connection to the inner wall of the water inlet pipe (1) to define the water passage (4); Alternatively, the first shielding part (31a) is annular, with its outer periphery fixed and sealed to the inner wall of the water inlet pipe (1), and its inner periphery forming a water passage (4); The second shielding part (31b) is movable relative to the first shielding part (31a) and switches the water inlet pipe (1) on and off by switching the water passage (4).

5. The spray structure according to claim 4, characterized in that, The second shielding part (31b) is hinged to the first shielding part (31a); The second shielding part (31b) flips over the first shielding part (31a) and passes through the water channel (4); The second shielding part (31b) flips in the opposite direction to the first shielding part (31a) to disconnect the water passage (4).

6. The spray structure according to claim 5, characterized in that, The second shielding part (31b) is hinged to the upper part of the first shielding part (31a), and the electromagnetic part (351) is provided on the outer wall of the water inlet pipe (1) above the first shielding part (31a). When the electromagnetic part (351) is energized, it magnetically attracts the second blocking part (31b), causing the second blocking part (31b) to flip upward and abut against the upper part of the inner wall of the water inlet pipe (1), thus disconnecting the water passage (4); When the electromagnetic part (351) is de-energized, it is released from magnetic attraction with the second shielding part (31b), causing the second shielding part (31b) to flip downward and abut against the lower part of the inner wall of the water inlet pipe (1), and then pass through the water channel (4).

7. The spray structure according to claim 6, characterized in that, An auxiliary electromagnetic part (351) is provided on the outer wall of the water inlet pipe (1) below the first shielding part (31a) and is opposite to the electromagnetic part (351); When the electromagnetic part (351) is de-energized and the auxiliary electromagnetic part (351) is energized, the auxiliary electromagnetic part (352) magnetically attracts the second blocking part (31b), causing the second blocking part (31b) to flip downward. When the electromagnetic part (351) is energized and the auxiliary electromagnetic part (351) is de-energized, the electromagnetic part (351) magnetically attracts the second blocking part (31b), causing the second blocking part (31b) to flip upward.

8. The spray structure according to any one of claims 4-7, characterized in that, The radial cross-section of the water inlet pipe (1) is circular; The first shielding part (31a) and the second shielding part (31b) are arc-shaped plates that match the inner wall of the water inlet pipe (1); The hinge point between the second shielding part (31b) and the first shielding part (31a) is not higher than half the radial height of the water inlet pipe (1).

9. The spray structure according to claim 8, characterized in that, The lower part of the second shielding part (31b) is provided with a hinge shaft (33) extending radially; The space between the hinge shaft (33) and part of the second shielding part (31b) forms an avoidance gap (34); A shaft hole (32) is provided at the hinge of the first shielding part (31a) and the second shielding part (31b); The hinge shaft (33) is inserted into the shaft hole (32) and rotates within the shaft hole (32); The wall of the shaft hole (32) is inserted into the clearance notch (34).

10. A dishwasher, comprising an inner tub, characterized in that, The inner liner is provided with the spray structure as described in any one of claims 1-9.

Images