Speed increasing structure, spraying arm structure and dish washing machine

Abstract

The utility model relates to a speed increasing structure, a spraying arm structure and a dish washing machine, and belongs to the field of household appliances. A speed increasing structure comprises a rotating assembly provided with a water inlet hole; the speed increasing assembly is provided with a speed increasing channel, and the speed increasing assembly is arranged on the rotating assembly; the water inlet shell is provided with a water inlet channel, the water inlet shell is arranged on the speed increasing assembly, and the water inlet channel, the speed increasing channel and the water inlet hole are sequentially communicated; the sectional area of the speed-increasing channel is gradually reduced in the direction from the water inlet shell to the rotating assembly, the end, with the larger sectional area, of the speed-increasing channel communicates with the water inlet channel, and the end, with the smaller sectional area, of the speed-increasing channel communicates with the water inlet hole. According to the speed increasing structure, the sectional area of a speed increasing channel is gradually reduced in the direction from a water inlet shell to a rotating assembly, the speed of water flow is rapidly increased when the water flow passes through the speed increasing channel, the water flow enters the rotating assembly, the high-speed water flow is sprayed out from a water outlet hole of the rotating assembly, and therefore the cleaning efficiency of a dish washing machine is improved.

Description

Technical Field

[0001] This utility model relates to the field of household appliances, and in particular to a speed-increasing structure, a spray arm structure, and a dishwasher. Background Technology

[0002] Currently, dishwasher spray arms lack any physical pressurization and water guiding structure, resulting in insufficient water jet speed and pressure. This leads to inadequate water rinsing force, making it difficult to effectively remove stubborn stains. Furthermore, the poor cleaning effect forces the wash pump to have greater power to achieve a higher water jet height and provide greater water pressure, increasing washing time and water consumption to achieve a clean result. Moreover, ordinary spray arms rely on the centrifugal force of water to move, but straight spray arms often lack sufficient centrifugal force, further exacerbating the poor cleaning and resulting in a poor user experience. Utility Model Content

[0003] Therefore, it is necessary to provide a speed-increasing structure, a spray arm structure, and a dishwasher to address the problems of the lack of a pressurized water guiding structure and the difficulty in efficiently rotating the spray arm.

[0004] An acceleration structure includes: a rotating component with a water inlet; an acceleration component with an acceleration channel, the acceleration component being disposed on the rotating component; and a water inlet housing with a water inlet channel, the water inlet housing being disposed on the acceleration component, the water inlet channel, the acceleration channel, and the water inlet are sequentially connected; the cross-sectional area of ​​the acceleration channel gradually decreases from the water inlet housing towards the rotating component, the end of the acceleration channel with a larger cross-sectional area is connected to the water inlet channel, and the end of the acceleration channel with a smaller cross-sectional area is connected to the water inlet.

[0005] The above-described speed-increasing structure features an inlet channel in the inlet housing, serving as the initial water introduction path and ensuring a stable water supply, laying a solid foundation for the entire speed-increasing process. The tight integration of the inlet housing and the speed-increasing component allows the water to smoothly enter the speed-increasing channel. The cross-sectional area of ​​the speed-increasing channel gradually decreases from the inlet housing towards the rotating component. Based on the Venturi principle and the Venturi formula A1V1=A2V2, the water velocity is rapidly increased as it passes through the speed-increasing channel and enters the inlet of the rotating component. This speed-increasing effect directly impacts the subsequent washing process, significantly enhancing the impact force and spray distance of the water flow. In actual dishwashing, the high-speed water jet from the outlet of the rotating component forms a powerful water jet that effectively impacts and removes stubborn stains such as grease and food residue from the surface of the tableware. Compared to traditional spray arms without a speed-increasing structure, this design significantly improves the effectiveness of a single wash, reduces the probability of needing a second wash due to incomplete cleaning, and greatly saves time and water resources. Furthermore, the powerful water flow makes the rotation of the spray arms smoother and more stable. Due to the increased water flow impact, the arc-shaped structure of the rotating component provides more power, ensuring that the spray arms can continuously rinse the dishes from all angles and directions, ensuring that every part of the dishes receives even and thorough cleaning, effectively avoiding blind spots. This not only improves the overall cleaning efficiency of the dishwasher but also makes the dishes cleaner and shinier, providing users with a superior dishwashing experience and meeting the modern family's pursuit of efficient and high-quality living. It also provides an innovative and practical solution for the technological development of the dishwasher industry, potentially driving the improvement of dishwasher product performance and market expansion. Because the cross-sectional area of ​​the speed-increasing channel gradually decreases from the water inlet housing towards the rotating component, the liquid flow speed increases as the cross-sectional area of ​​the pipe decreases. The end with the larger cross-sectional area connects to the water inlet channel, ensuring smooth water intake and preventing water flow congestion or pressure loss due to an insufficiently large inlet, thus ensuring a stable water supply. The smaller end connects to the water inlet, allowing the water flow to be efficiently accelerated before entering the rotating assembly, thus being sprayed out of the spray arm with higher speed and kinetic energy. This higher water flow velocity expands the spray coverage, enabling the water to reach every corner of the dishwasher's interior more comprehensively, improving overall cleaning efficiency, shortening the time per wash cycle, saving water and electricity, and providing users with a more energy-efficient and environmentally friendly dishwashing experience. This enhances the dishwasher's competitiveness and practicality in the market, meeting modern consumers' pursuit of a high-quality life, and has significant meaning and value in optimizing dishwasher performance.

[0006] In one embodiment, the water inlet housing, the speed-increasing component, and the rotating component are integrally formed. By integrally forming the water inlet housing, speed-increasing component, and rotating component, connection gaps between the components are eliminated, water leakage is avoided, and the water flow is ensured to efficiently accelerate along a predetermined path, improving water utilization and thus enhancing the overall performance of the spray arm. Secondly, the number of parts is reduced, the structure is simplified, and the probability of failure due to loose parts, wear, or improper assembly is lowered, significantly improving the stability and reliability of the system, reducing maintenance costs and repair frequency, and extending service life. Furthermore, the integral design makes manufacturing and quality control easier during production, effectively improving production efficiency, reducing production costs, and making the product more competitive in the market.

[0007] In one embodiment, the speed-increasing component includes a speed-increasing housing and a connecting housing. The connecting housing is disposed on the rotating component, and the speed-increasing housing is disposed on the connecting housing. The speed-increasing housing has the speed-increasing channel, and the connecting housing has an outlet communicating with the speed-increasing channel. The water inlet housing is disposed on the speed-increasing housing. By placing the connecting housing on the rotating component, the speed-increasing housing on the connecting housing, and the water inlet housing on the speed-increasing housing, the entire speed-increasing structure is made complete and integrated. Simultaneously, placing the connecting housing on the rotating component provides stable support for the speed-increasing housing, ensuring structural stability during high-speed water flow impact and rotation, reducing vibration and displacement, and thus ensuring the stability and continuity of water flow speed increase. Connecting the water inlet housing to the water supply system is more convenient, allowing water to flow smoothly through the speed-increasing channel and the outlet sequentially, fully utilizing the speed-increasing effect, increasing water flow speed and pressure, making the water jet from the spray arm more powerful and effective, enhancing the cleaning effect on tableware, improving the overall cleaning efficiency of the dishwasher, and providing a better user experience.

[0008] In one embodiment, the cross-sectional area of ​​the outlet is smaller than that of the speed-increasing channel. With this structural arrangement, as the water flows from the speed-increasing housing to the connecting housing, the reduced cross-sectional area, according to the Venturi principle and the Venturi formula A1V1=A2V2, significantly increases the water velocity as it enters the outlet from the speed-increasing channel. This results in greater kinetic energy for the water as it enters the rotating assembly. This means the water jet from the spray arm has a stronger impact, more efficiently removing stubborn stains such as dried food residue and grease from dishes. Simultaneously, the higher water velocity increases the spray coverage, ensuring thorough cleaning of all areas inside the dishwasher, reducing blind spots, improving overall cleaning effect and efficiency, and ultimately enhancing dishwasher performance. This saves users cleaning time and water / electricity resources, meeting the modern family's demand for efficient and convenient dishwashing.

[0009] In one embodiment, the speed-increasing housing and the connecting housing are integrally formed. By integrally forming the speed-increasing housing and the connecting housing, the connection gap between the housings is eliminated, avoiding potential water leakage and pressure loss at this point. This ensures that the water flow can pass through the speed-increasing channel efficiently and stably, guaranteeing the stability and reliability of the water flow speed-up effect, thereby improving the cleaning performance of the dishwasher's spray arms. Secondly, the number of parts is reduced, simplifying the overall structure. This not only reduces the assembly difficulty and cost during the production process but also improves the overall strength and durability of the product, reducing the possibility of malfunctions caused by loose or worn parts. This provides users with a more stable, efficient, and low-maintenance dishwasher experience.

[0010] In one embodiment, the rotating assembly includes a rotating base plate and a rotating housing. The speed-increasing component is disposed on the rotating base plate, and the rotating housing is disposed on the rotating base plate. The rotating base plate has the water inlet hole. By placing the speed-increasing component on the rotating base plate, the water flow accelerated from the speed-increasing channel can directly enter the rotating assembly through the water inlet hole on the rotating base plate, ensuring a compact and efficient water flow path, reducing energy loss, and further enhancing the jetting power of the water flow. Simultaneously, when the water flow enters the rotating assembly from the speed-increasing housing, the high-speed water flow is sprayed from the water inlet hole onto the arc-shaped housing of the rotating assembly, directly driving the rotating assembly to rotate efficiently, reducing energy transfer loss. Furthermore, the rotating housing, disposed on the rotating base plate, forms a relatively stable rotating space, which helps the water flow maintain a stable flow rate and direction during rotation, making the rotation of the spray arm smoother and more fluid. This achieves efficient cleaning from all directions and multiple angles, improving the overall practicality and reliability of the dishwasher and providing users with a better user experience.

[0011] In one embodiment, the rotating housing includes a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall, all of which are disposed on the rotating base plate and are sequentially connected. By sequentially connecting and disposing of the first, second, third, and fourth sidewalls on the rotating base plate, a stable space is formed, effectively utilizing the water flow acting on the inner wall of the housing to generate a torque that drives the rotating assembly to rotate. Because the four sidewalls are sequentially connected and tightly integrated with the rotating base plate, the rotating assembly can rotate stably and smoothly around the central axis under the drive of the water flow. This structural design efficiently converts the energy of the water flow into rotational power, ensuring the accuracy and stability of the rotation direction and avoiding rotational deviations or jamming caused by a loose structure. Simultaneously, the stable rotational motion allows the spray arms to rinse the dishes inside the dishwasher in an all-around and uniform manner, greatly improving the cleaning coverage and effect, ensuring that each piece of tableware is thoroughly cleaned, and enhancing the overall performance and cleaning efficiency of the dishwasher.

[0012] In one embodiment, the first sidewall and the third sidewall are arranged opposite to each other, and both the first sidewall and the third sidewall are formed by connecting multiple arc-shaped sidewall segments. The arc-shaped openings of the multiple arc-shaped sidewall segments are in opposite directions and are tangentially connected. Through this structural arrangement, when the water flow drives the rotating assembly to rotate, the special construction of the multiple arc-shaped sidewall segments allows the water flow to drive the rotating assembly to rotate in a more efficient manner. This not only helps to enhance the pressure and speed of the water flow when it exits the spray arm, improving the cleaning ability of the dishes, but also enables the rotating assembly to maintain good mechanical performance during long-term use, reducing component wear and extending its service life. This provides users with a more stable, efficient, and durable dishwasher experience, optimizing the overall performance of the dishwasher.

[0013] In one embodiment, both ends of the second and fourth sidewalls are tangentially connected to the first and third sidewalls. By tangentially connecting both ends of the second and fourth sidewalls to the first and third sidewalls, a smooth transition between the sidewalls is ensured, allowing the water flow to remain stable and continuous within the rotating housing. This avoids water turbulence and energy loss caused by uneven sidewall connections. This helps to more efficiently convert the kinetic energy of the water flow into the mechanical energy of the rotating component, making the rotation smoother and more stable, improving the efficiency and stability of the rotation. This allows the spray arm to rotate with a more precise trajectory and a stable speed, achieving a powerful, all-around, and thorough cleaning of the dishes. Simultaneously, it reduces irregular impacts of the water flow on the sidewalls, lowers noise levels, and extends the lifespan of the rotating component, providing users with a quieter, more reliable, and more efficient dishwashing experience.

[0014] In one embodiment, the first sidewall, second sidewall, third sidewall, and fourth sidewall are integrally formed. By integrally forming the first, second, third, and fourth sidewalls, the connection gaps between the sidewalls are eliminated, effectively preventing water leakage, ensuring stable water pressure within the rotating housing, and enabling the water to flow efficiently along a predetermined path, thus enhancing the spray force and cleaning effect. Secondly, the overall structural stability is significantly improved. During high-speed rotation, it can better withstand water flow impact and centrifugal force, reducing malfunctions caused by loose or deformed components, lowering maintenance costs and downtime, and improving the dishwasher's reliability and durability. Furthermore, the integral design simplifies the manufacturing process, reduces manufacturing costs, and improves production efficiency, providing strong support for the product's market competitiveness and offering users a more cost-effective and higher-performance dishwasher experience.

[0015] In one embodiment, the rotating base plate is further provided with multiple air inlets, which are spaced apart circumferentially along the water inlet. By arranging multiple air inlets circumferentially along the water inlet, the cleaning effect is significantly improved. When water flows in at high speed through the water inlet, surrounding air is drawn into the water flow. The high-speed water flow mixes thoroughly with the air, producing an atomization effect. The atomized water droplets are smaller in size and have a larger surface area, allowing for more thorough contact with oil and stains on the tableware surface, enhancing cleaning power and more effectively removing various stubborn oil stains and food residues, thus improving the cleanliness of the cleaning. Simultaneously, the atomized water flow covers a wider area during spraying, reaching corners and crevices that are difficult for traditional water flow to reach, reducing cleaning dead zones and making the overall cleaning effect of the dishwasher more uniform and thorough. Moreover, this design, which combines air and water inlets, eliminates the need for additional complex devices. It cleverly utilizes the power of water flow to atomize air, significantly optimizing the dishwasher's cleaning performance without increasing costs or energy consumption. This provides users with a superior dishwashing experience and meets the modern family's demand for efficient and high-quality dishwashing.

[0016] In one embodiment, the water inlet is located in the center of the rotating base plate, and the water inlet can spray liquid toward the rotating housing. By placing the water inlet in the center of the rotating base plate and spraying liquid toward the rotating housing, the original force balance of the rotating housing is disrupted. To regain balance, the rotating housing begins to rotate around its axis. Moreover, as the water inlet continuously and stably sprays liquid, this thrust is continuously applied, acting like a continuous power source, driving the rotating housing to rotate continuously and stably, thereby bringing dynamic and efficient operation to the subsequent cleaning process.

[0017] The second aspect of this application discloses a spray arm structure, which includes: the speed-increasing structure described above; a spray housing disposed on the speed-increasing structure; and an air intake device disposed on the speed-increasing structure, wherein the air intake device has a positive pressure port and the positive pressure port is connected to the air inlet.

[0018] The second aspect disclosed above discloses a spray arm structure for a dishwasher. This speed-increasing structure effectively accelerates the water flow before it enters the spray arm, enhancing the flow rate and impact force, thus more powerfully rinsing away stubborn stains on tableware and significantly improving cleaning performance. Secondly, the spray housing is positioned on the speed-increasing structure, precisely guiding the high-speed water flow to various parts of the tableware. Combined with the accelerated water flow, this achieves more efficient cleaning coverage and reduces blind spots. Furthermore, the positive pressure port of the air intake device is connected to the air inlet 102, allowing air to mix with the water flow during operation, producing an atomization effect, further improving cleaning efficiency and quality. The atomized water flow can penetrate deep into the fine crevices of the tableware, removing grease and residue while also reducing water consumption. This makes the dishwasher more energy-efficient and environmentally friendly while maintaining cleaning effectiveness, providing users with a high-performance, water-saving, and powerful tableware cleaning solution.

[0019] A third aspect of this application discloses a dishwasher, which includes the spray arm structure described above.

[0020] The third aspect disclosed above discloses a dishwasher that, by incorporating the aforementioned spray arm structure, allows the cleaning water flow to achieve higher speed and kinetic energy. This enables it to more effectively impact and remove grease and stains from the surface of the tableware, significantly improving the cleaning effect on stubborn grease and dried food residue. It ensures that every corner of the tableware is thoroughly cleaned, greatly enhancing the cleanliness of the tableware and reducing stain residue. Compared to ordinary spray arms, it can complete the cleaning cycle of the entire tableware set more quickly, shortening the dishwasher's single run time and allowing the tableware to complete the cleaning process in a shorter time. This improves the overall efficiency of the dishwasher and meets users' needs for efficient cleaning. Attached Figure Description

[0021] Figure 1 The first three-dimensional view of the speed-increasing shell;

[0022] Figure 2 This is the first cross-sectional view of the speed-increasing shell;

[0023] Figure 3 This is a second cross-sectional view of the speed-increasing shell;

[0024] Figure 4 for Figure 3 A magnified view of a portion of region A;

[0025] Figure 5 This is a second three-dimensional view of the speed-increasing shell;

[0026] Figure 6 for Figure 5 A magnified view of a portion of region B;

[0027] Figure 7 This is a third-dimensional view of the speed-increasing shell;

[0028] Figure 8 This is the fourth perspective view of the speed-increasing shell.

[0029] The correspondence between the reference numerals and the component names is as follows:

[0030] 1 Rotating assembly, 11 Rotating base plate, 12 Rotating housing, 121 First side wall, 122 Second side wall, 123 Third side wall, 101 Water inlet, 102 Air inlet;

[0031] 2 speed-up components, 21 speed-up housing, 22 connecting housing, 201 speed-up channel;

[0032] 3. Water inlet shell, 301 water inlet channel. Detailed Implementation

[0033] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0034] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0035] The following description, with reference to the accompanying drawings, describes some embodiments of the speed-increasing structure, spray arm structure, and dishwasher of this utility model.

[0036] Example 1

[0037] like Figures 1 to 8As shown, this embodiment discloses a speed-increasing structure, including: a rotating component 1, which has a water inlet hole 101; a speed-increasing component 2, which has a speed-increasing channel 201 and is disposed on the rotating component 1; and a water inlet housing 3, which has a water inlet channel 301 and is disposed on the speed-increasing component 2. The water inlet channel 301, the speed-increasing channel 201, and the water inlet hole 101 are connected in sequence. The cross-sectional area of ​​the speed-increasing channel 201 gradually decreases from the water inlet housing 3 toward the rotating component 1. The end of the speed-increasing channel 201 with a larger cross-sectional area is connected to the water inlet channel 301, and the end of the speed-increasing channel 201 with a smaller cross-sectional area is connected to the water inlet hole 101.

[0038] This application discloses a speed-increasing structure. The water inlet channel 301 of the water inlet housing 3 serves as the initial introduction path for the water flow, ensuring a stable water supply and laying a solid foundation for the entire speed-increasing process. The tight connection between the water inlet housing 3 and the speed-increasing component 2 allows the water flow to smoothly enter the speed-increasing channel 201. The cross-sectional area of ​​the speed-increasing channel 201 gradually decreases from the water inlet housing 3 towards the rotating component 1. According to the Venturi principle and the Venturi formula A1V1=A2V2, the water flow speed is rapidly increased when passing through the speed-increasing channel 201 and enters the water inlet hole 101 of the rotating component 1. This speed-increasing effect directly affects the subsequent washing process, greatly enhancing the impact force and spray distance of the water flow. In actual dishwashing operations, the high-speed water flow is ejected from the water outlet hole of the rotating component 1, forming a powerful water jet that can more effectively impact and remove various stubborn stains such as oil and food residues adhering to the surface of the tableware. Compared to traditional spray arms without a speed-increasing structure, this design significantly improves the effectiveness of a single wash, reduces the probability of needing a second wash due to incomplete cleaning, and greatly saves time and water resources. Furthermore, the powerful water flow makes the rotation of the spray arm smoother and more stable. Due to the enhanced water flow impact, the arc-shaped structure of the rotating component 1 provides it with more power, ensuring that the spray arm can continuously rinse the dishes from all directions and angles, ensuring that every part of the dishes receives even and thorough cleaning, effectively avoiding the appearance of cleaning dead spots. This not only improves the overall cleaning efficiency of the dishwasher but also makes the washed dishes cleaner and shinier, providing users with a superior dishwashing experience and meeting the modern family's pursuit of efficient and high-quality living. It also provides an innovative and practical solution for the technological development of the dishwasher industry, and is expected to drive the improvement of dishwasher product performance and market expansion. As the cross-sectional area of ​​the speed-increasing channel 201 gradually decreases from the water inlet housing 3 towards the rotating component 1, the liquid flow speed increases as the cross-sectional area of ​​the pipe decreases. The end with the larger cross-sectional area is connected to the water inlet channel 301, ensuring smooth water intake and preventing water flow congestion or pressure loss due to an insufficiently small inlet, thus ensuring a stable water supply. The end with the smaller cross-sectional area is connected to the water inlet hole 101, allowing the water flow to be efficiently accelerated before entering the rotating component 1, resulting in a higher speed and kinetic energy spray from the spray arm. This effectively improves cleaning performance, reduces the risk of secondary contamination due to residual dirt, and ensures that every part of the dishes is thoroughly cleaned. Simultaneously, the higher water flow speed expands the spray coverage area, shortens the time for a single wash, and saves water and electricity, providing users with a more energy-efficient and environmentally friendly dishwashing experience. This enhances the dishwasher's competitiveness and practicality in the market, meeting modern consumers' pursuit of a high-quality life and holding significant importance and value in optimizing dishwasher performance.

[0039] like Figure 1 and Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further defines that the water inlet housing 3, the speed-increasing component 2, and the rotating component 1 are integrally formed. By integrally forming the water inlet housing 3, the speed-increasing component 2, and the rotating component 1, the connection gaps between the components are eliminated, water leakage is avoided, and the water flow is ensured to flow efficiently and at a faster speed along the predetermined path, improving water utilization and thus enhancing the overall performance of the spray arm. Secondly, the number of parts is reduced, the structure is simplified, and the probability of failure due to loose parts, wear, or improper assembly is reduced, significantly improving the stability and reliability of the system, reducing maintenance costs and repair frequency, and extending service life. Furthermore, the integrally formed design is easier to manufacture and control in the production process, effectively improving production efficiency, reducing production costs, and making the product more competitive in the market.

[0040] like Figure 5 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the speed-increasing component 2 includes a speed-increasing housing 21 and a connecting housing 22. The connecting housing 22 is disposed on the rotating component 1, and the speed-increasing housing 21 is disposed on the connecting housing 22. The speed-increasing housing 21 has a speed-increasing channel 201, and the connecting housing 22 has a flow port communicating with the speed-increasing channel 201. The water inlet housing 3 is disposed on the speed-increasing housing 21. By disposing of the connecting housing 22 on the rotating component 1, the speed-increasing housing 21 on the connecting housing 22, and the water inlet housing 3 on the speed-increasing housing 21, the entire speed-increasing structure is made complete and integrated. At the same time, the connecting housing 22, disposed on the rotating component 1, can provide stable support for the speed-increasing housing 21, ensuring structural stability during high-speed water flow impact and rotation, reducing vibration and displacement, and thus ensuring the stability and continuity of water flow speed increase. Connecting the water inlet housing 3 to the water supply system makes it more convenient. The water can flow smoothly through the speed-increasing channel 201 and the outlet, giving full play to the speed-increasing effect, increasing the water flow speed and pressure, making the water jet from the spray arm more powerful, enhancing the cleaning effect on the dishes, improving the overall cleaning efficiency of the dishwasher, and bringing a better user experience.

[0041] like Figure 2 , Figure 3 and Figure 4As shown, in addition to the features of the above embodiments, this embodiment further specifies that the cross-sectional area of ​​the overflow port is smaller than the cross-sectional area of ​​the speed-increasing channel 201. Through the above structural arrangement, during the flow of water from the speed-increasing housing 21 to the connecting housing 22, due to the reduction in cross-sectional area, according to the Venturi principle and the Venturi formula A1V1=A2V2, the water flow velocity will be significantly increased when the speed-increasing channel 201 enters the overflow port, thus allowing the water flow to gain greater kinetic energy when entering the rotating assembly 1. This means that the water flow sprayed from the spray arm has a stronger impact force, enabling more efficient removal of stubborn stains on tableware, such as dried food residue and grease. Simultaneously, the higher water flow velocity also increases the spray coverage, ensuring that all areas inside the dishwasher are thoroughly cleaned, reducing cleaning dead zones, improving the overall cleaning effect and efficiency, thereby enhancing the dishwasher's performance, saving users cleaning time and water / electricity resources, and meeting the needs of modern families for efficient and convenient dishwashing.

[0042] like Figure 5 and Figure 6 As shown, in addition to the features of the above embodiments, this embodiment further defines that the speed-increasing housing 21 and the connecting housing 22 are integrally formed. By integrally forming the speed-increasing housing 21 and the connecting housing 22, the connection gap between the housings is eliminated, avoiding possible water leakage and pressure loss at this point, ensuring that the water flow can pass through the speed-increasing channel efficiently and stably, guaranteeing the stability and reliability of the water flow speed-increasing effect, thereby improving the cleaning performance of the dishwasher spray arm. Secondly, the number of parts is reduced, and the overall structure is simplified, which not only reduces the assembly difficulty and cost in the production process, but also improves the overall strength and durability of the product, reducing the possibility of failure caused by loose or worn parts, and providing users with a more stable, efficient and low-maintenance dishwasher experience.

[0043] like Figure 1 , Figure 3 , Figure 4 and Figure 7As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the rotating component 1 includes a rotating base plate 11 and a rotating housing 12, the speed-increasing component 2 is disposed on the rotating base plate 11, the rotating housing 12 is disposed on the rotating base plate 11, and the rotating base plate 11 is provided with a water inlet hole 101. By disposing of the speed-increasing component 2 on the rotating base plate 11, the water flow accelerated from the speed-increasing channel can directly enter the rotating component 1 through the water inlet hole 101 on the rotating base plate 11, ensuring a compact and efficient water flow path, reducing energy loss, and further enhancing the jetting power of the water flow. At the same time, when the water flow enters the rotating component 1 from the speed-increasing housing 2, the high-speed water flow is sprayed from the water inlet hole 101 onto the arc-shaped housing of the rotating component 1, directly driving the rotating component 1 to rotate efficiently, reducing energy transfer loss. Secondly, the rotating housing 12 is set on the rotating base plate 11, forming a relatively stable rotating space, which helps the water flow to maintain a stable flow rate and direction during rotation, making the rotation of the spray arm more stable and smooth, thereby achieving efficient cleaning from all directions and multiple angles, improving the overall practicality and reliability of the dishwasher, and bringing users a better user experience.

[0044] like Figure 7 and Figure 8 As shown, in addition to the features of the above embodiments, this embodiment further defines that: the rotating housing 12 includes a first sidewall 121, a second sidewall 122, a third sidewall 123, and a fourth sidewall 124. The first sidewall 121, second sidewall 122, third sidewall 123, and fourth sidewall 124 are all disposed on the rotating base plate 11, and are connected sequentially. By sequentially connecting and disposing of the first sidewall 121, second sidewall 122, third sidewall 123, and fourth sidewall 124 on the rotating base plate 11, a stable space is formed. The water flow acting on the inner wall of the housing effectively generates a torque that drives the rotating assembly 1 to rotate. Because the four sidewalls are sequentially connected and tightly integrated with the rotating base plate, the rotating assembly 1 can rotate stably and smoothly around the central axis under the drive of the water flow. This structural design efficiently converts the energy of the water flow into rotational power, ensuring the accuracy and stability of the rotation direction and avoiding rotational deviations or jamming caused by a loose structure. Simultaneously, the stable rotational motion allows the spray arms to thoroughly and evenly rinse the dishes inside the dishwasher, significantly improving cleaning coverage and effectiveness, ensuring that every piece of tableware is thoroughly cleaned, and enhancing the overall performance and cleaning efficiency of the dishwasher.

[0045] like Figure 7 and Figure 8As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the first sidewall 121 and the third sidewall 123 are arranged opposite to each other, and both the first sidewall 121 and the third sidewall 123 are formed by connecting multiple arc-shaped sidewalls. The arc-shaped openings of the multiple arc-shaped sidewalls are in opposite directions and are tangentially connected. Through the above structural arrangement, when the water flow drives the rotating assembly 1 to rotate, the special structure of the multiple arc-shaped sidewalls allows the water flow to drive the rotating assembly to rotate in a more efficient manner. This not only helps to enhance the pressure and speed of the water flow when it sprays from the spray arm, improving the cleaning ability of the dishes, but also enables the rotating assembly to maintain good mechanical performance during long-term use, reducing component wear and extending its service life. This provides users with a more stable, efficient, and durable dishwasher experience, optimizing the overall performance of the dishwasher.

[0046] like Figure 7 and Figure 8 As shown, in addition to the features of the above embodiments, this embodiment further specifies that both ends of the second sidewall 122 and the fourth sidewall 124 are tangentially connected to the first sidewall 121 and the third sidewall 123. By tangentially connecting both ends of the second sidewall 122 and the fourth sidewall 124 to the first sidewall 121 and the third sidewall 123, the smoothness of the transition between the sidewalls is ensured, allowing the water flow to remain stable and continuous within the rotating housing, avoiding water turbulence and energy loss caused by uneven sidewall connections. This helps to more efficiently convert the kinetic energy of the water flow into the mechanical energy of the rotating component, making the rotation smoother and more stable, improving the efficiency and stability of the rotation, thereby allowing the spray arm to rotate with a more precise trajectory and stable speed, achieving powerful rinsing of tableware from all directions without dead angles. At the same time, it reduces the irregular impact of water flow on the sidewalls, reduces noise generation, and also helps to extend the service life of the rotating component, bringing users a quieter, more reliable, and more efficient dishwashing experience.

[0047] like Figure 7 and Figure 8As shown, in addition to the features of the above embodiments, this embodiment further defines that the first sidewall 121, the second sidewall 122, the third sidewall 123, and the fourth sidewall 124 are integrally formed. By integrally forming the first sidewall 121, the second sidewall 122, the third sidewall 123, and the fourth sidewall 124, the connection gaps between the sidewalls are eliminated, effectively preventing water leakage, ensuring the stability of water pressure inside the rotating housing, and enabling the water flow to flow efficiently along a predetermined path, thereby enhancing the spray force and cleaning effect. Secondly, the overall structural stability is greatly improved. During high-speed rotation, it can better withstand water flow impact and centrifugal force, reducing malfunctions caused by loose or deformed parts, lowering maintenance costs and downtime, and improving the reliability and durability of the dishwasher. Furthermore, the integral design simplifies the manufacturing process, reduces manufacturing costs, and improves production efficiency, providing strong support for the product's market competitiveness and bringing users a more cost-effective and higher-performance dishwasher product experience.

[0048] like Figure 3 and Figure 4 As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the rotating base plate 11 is also provided with air inlets 102, and the number of air inlets 102 is multiple, which are arranged at circumferential intervals along the water inlets 101. By arranging multiple air inlets 102 at circumferential intervals along the water inlets 101, the cleaning effect is significantly improved. When water flows in at high speed from the water inlets 101, the surrounding air is drawn into the water flow through the air inlets 102. The high-speed water flow mixes thoroughly with the air, producing an atomization effect. The atomized water droplets have smaller particle sizes and larger surface areas, allowing for more thorough contact with oil and stains on the surface of the tableware, enhancing the cleaning ability, and more effectively removing various stubborn oil stains and food residues, thus improving the cleanliness of the cleaning. At the same time, the atomized water flow has a wider coverage area during spraying, reaching some corners and crevices that are difficult to reach with traditional water flow, reducing cleaning dead angles, and making the overall cleaning effect of the dishwasher more uniform and thorough. Moreover, this design, which combines air and water inlets, eliminates the need for additional complex devices. It cleverly utilizes the power of water flow to atomize air, significantly optimizing the dishwasher's cleaning performance without increasing costs or energy consumption. This provides users with a superior dishwashing experience and meets the modern family's demand for efficient and high-quality dishwashing.

[0049] like Figure 4 and Figure 7As shown, in addition to the features of the above embodiments, this embodiment further specifies that: the water inlet 101 is located in the middle of the rotating base plate 11, and the water inlet 101 can spray liquid toward the rotating housing 12. By setting the water inlet 101 in the middle of the rotating base plate 11, and simultaneously allowing the water inlet 101 to spray liquid toward the rotating housing 12, the original force balance of the rotating housing 12 is disrupted. In order to regain equilibrium, the rotating housing 12 will begin to rotate around its axis. Moreover, as the water inlet 101 continuously and stably sprays liquid, this thrust is continuously applied, acting like a continuous power source, driving the rotating housing 12 to rotate continuously and stably, thereby bringing dynamic and efficient operation results to the subsequent cleaning.

[0050] Example 2

[0051] like Figures 1 to 8 As shown, this embodiment discloses a spray arm structure, including: the speed-increasing structure described above; a spray housing disposed on the speed-increasing structure; and an air intake device disposed on the speed-increasing structure, the air intake device having a positive pressure port that communicates with the air inlet 102.

[0052] The second aspect of this application discloses a spray arm structure for a dishwasher. This speed-increasing structure effectively accelerates the water flow before it enters the spray arm, enhancing the flow rate and impact force, thus more powerfully rinsing away stubborn stains on tableware and significantly improving cleaning performance. Secondly, the spray housing is positioned on the speed-increasing structure, precisely guiding the high-speed water flow to various parts of the tableware. Combined with the accelerated water flow, this achieves more efficient cleaning coverage and reduces blind spots. Furthermore, the positive pressure port of the air intake device is connected to the air inlet 102, allowing air to mix with the water flow during operation, producing an atomization effect, further improving cleaning efficiency and quality. The atomized water flow can penetrate deep into the fine crevices of the tableware, removing grease and residue while also reducing water consumption. This makes the dishwasher more energy-efficient and environmentally friendly while maintaining cleaning effectiveness, providing users with a high-performance, water-saving, and powerful tableware cleaning solution.

[0053] Example 3

[0054] like Figures 1 to 8 As shown, this embodiment discloses a dishwasher, including the spray arm structure described above.

[0055] The third aspect of this application discloses a dishwasher that, by incorporating the aforementioned spray arm structure, allows the cleaning water flow to achieve higher speed and kinetic energy. This enables a more powerful impact on the surface of tableware, removing grease and stains more quickly. The cleaning effect is significantly improved for stubborn grease and dried food residue, ensuring that every corner of the tableware is thoroughly cleaned, greatly enhancing the cleanliness of the tableware and reducing stain residue. Compared to ordinary spray arms, it can complete the cleaning cycle of the entire tableware set more quickly, shortening the dishwasher's single run time and allowing the tableware to complete the cleaning process in a shorter time. This improves the overall efficiency of the dishwasher and meets users' needs for efficient cleaning.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A speed increasing structure, characterized by, The speed increasing structure comprises: a rotating assembly (1) provided with a water inlet hole (101); a speed increasing assembly (2) provided with a speed increasing channel (201), the speed increasing assembly (2) being arranged on the rotating assembly (1); a water inlet shell (3) provided with a water inlet channel (301), the water inlet shell (3) being arranged on the speed increasing assembly (2), the water inlet channel (301), the speed increasing channel (201) and the water inlet hole (101) being sequentially communicated; the speed increasing channel (201) gradually reducing in cross-sectional area from the water inlet shell (3) to the rotating assembly (1), one end of the speed increasing channel (201) with a larger cross-sectional area being communicated with the water inlet channel (301), and the other end of the speed increasing channel (201) with a smaller cross-sectional area being communicated with the water inlet hole (101).

2. The speed increasing structure according to claim 1, characterized in that, The water inlet shell (3), the speed increasing assembly (2) and the rotating assembly (1) are integrally formed.

3. The speed increasing structure according to claim 1, wherein The speed increasing assembly (2) comprises a speed increasing shell (21) and a connecting shell (22), the connecting shell (22) being arranged on the rotating assembly (1), the speed increasing shell (21) being arranged on the connecting shell (22), the speed increasing shell (21) being provided with the speed increasing channel (201), the connecting shell (22) being provided with a flow passage communicated with the speed increasing channel (201), and the water inlet shell (3) being arranged on the speed increasing shell (21).

4. The speed increasing structure according to claim 3, wherein the cross-sectional area of the flow passage is smaller than that of the speed increasing channel (201); and / or the speed increasing shell (21) and the connecting shell (22) are integrally formed.

5. The speed increasing structure according to claim 1, wherein The rotating assembly (1) comprises a rotating bottom plate (11) and a rotating shell (12), the speed increasing assembly (2) being arranged on the rotating bottom plate (11), the rotating shell (12) being arranged on the rotating bottom plate (11), and the rotating bottom plate (11) being provided with the water inlet hole (101).

6. The speed increasing structure according to claim 5, wherein The rotating shell (12) comprises a first side wall (121), a second side wall (122), a third side wall (123) and a fourth side wall (124), the first side wall (121), the second side wall (122), the third side wall (123) and the fourth side wall (124) being arranged on the rotating bottom plate (11), and the first side wall (121), the second side wall (122), the third side wall (123) and the fourth side wall (124) being sequentially connected.

7. The speed increasing structure according to claim 6, wherein the first side wall (121) and the third side wall (123) are oppositely arranged, the first side wall (121) and the third side wall (123) each being connected by a plurality of arc-shaped side walls, the arc-shaped openings of the plurality of arc-shaped side walls being oppositely directed and the plurality of arc-shaped side walls being tangentially connected. And / or both ends of the second side wall (122) and the fourth side wall (124) are tangentially connected with the first side wall (121) and the third side wall (123); And / or the first side wall (121), the second side wall (122), the third side wall (123) and the fourth side wall (124) are integrally formed.

8. The speed increasing structure according to claim 5, characterized in that, The rotating bottom plate (11) is further provided with air inlet holes (102), the number of the air inlet holes (102) is multiple, and the multiple air inlet holes (102) are arranged along the circumference of the water inlet hole (101); And / or the water inlet hole (101) is located in the middle of the rotating bottom plate (11), and the water inlet hole (101) can spray liquid towards the rotating shell (12).

9. A spray arm structure characterized by, The spray arm structure comprises: The speed increasing structure according to any one of claims 1 to 8; A spray shell is arranged on the speed increasing structure; An air inlet device is arranged on the speed increasing structure, and the air inlet device is provided with a positive pressure port in communication with the air inlet hole (102).

10. A dishwasher, characterized in that The dishwasher comprises: The spray arm structure according to claim 9.

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